A drying equipment for producing oral liquid glass bottles

Abstract

The present application discloses a drying device for producing oral liquid glass bottles, relating to the technical field of glass bottle drying equipment. The device comprises a drying oven and a conveyor belt. The drying oven is provided with a drying module and a detection module, the drying module being used to blow air to dry the glass bottles, and the detection module being used to detect the dryness of the inner walls of the glass bottles. The conveyor belt runs within the drying oven, and a plurality of placement platforms are provided at intervals on the conveyor belt for placing the glass bottles upside down. The drying module includes an air blowing component for blowing the glass bottles up and suspending them in the air. The detection module uses a surface resistivity test method to detect the dryness of the suspended glass bottles. The first detection unit is used to detect the dryness of the inner wall of the bottom of the glass bottle, and the second detection unit is used to detect the dryness of the inner wall of the bottle mouth of the glass bottle. The present application has the effect of improving the drying efficiency of glass bottles.

Description

Technical Field

[0001] The present application relates to the technical field of glass bottle drying equipment, and in particular to a drying equipment for producing oral liquid glass bottles. Background Art

[0002] Common oral liquids on the market are typically packaged in glass bottles. This is due to the excellent chemical stability of glass, which does not react with most drug ingredients, thus ensuring the quality and effectiveness of the drugs during storage. Glass containers effectively block air, moisture, and other external factors that may affect the stability of drugs, thereby extending the shelf life of the drugs. Glass containers also perform well in high-temperature and high-pressure sterilization processes. For drugs that need to be stored away from light, brown or other colored glass bottles can provide additional protection.

[0003] The glass bottle needs to be cleaned before filling the oral liquid to ensure that the inner and outer surfaces of the glass bottle are clean, especially the inner surface of the glass bottle. The glass bottle must also be dried after cleaning to remove all the water on the inner wall of the glass bottle to avoid contamination of the oral liquid. Only then can the glass bottle be filled with oral liquid.

[0004] Conventional oral liquid glass bottles are usually placed in the same tray during drying. The glass bottles are crowded together, which is not conducive to thorough drying. At the same time, the glass bottles are completely dried at high temperatures, which has low drying efficiency and high drying energy consumption. Summary of the Invention

[0005] In order to improve the situation that conventional oral liquid glass bottles have low drying efficiency and high drying energy consumption, the present application provides a drying equipment for the production of oral liquid glass bottles.

[0006] This application provides a drying device for producing oral liquid glass bottles, which adopts the following technical solutions:

[0007] A drying device for producing oral liquid glass bottles, comprising

[0008] The drying box is equipped with a drying module and a detection module in sequence. The drying module is used to blow air to dry the glass bottles, and the detection module is used to detect the drying state of the inner wall of the glass bottles;

[0009] The conveyor belt runs in the drying box, and multiple placement platforms are arranged at intervals on the conveyor belt for glass bottles to be placed upside down;

[0010] The drying module includes an air blowing component, which is used to blow up the glass bottle and suspend it in the air. The detection module uses a surface resistivity test method to perform a dryness detection on the suspended glass bottle. The detection module includes a first detection part and a second detection part. When the glass bottle is placed on the placement table, the first detection part is used to perform a dryness detection on the inner wall of the bottom of the glass bottle, and the second detection part is used to perform a dryness detection on the inner wall of the bottle mouth of the glass bottle.

[0011] Optionally, the blowing assembly includes an internal hollow blowing rod, which corresponds to the placement table one by one and has a top vertically extending through the top surface of the placement table. The blowing rod is used to be inserted into the interior of the glass bottle from bottom to top. A buffer pad is provided at the top of the blowing rod, and a lifting through hole is provided through the center of the buffer pad. The other end of the blowing rod is used for external air supply equipment, and the blowing rod is used to blow air onto the inner bottom wall of the glass bottle so that the glass bottle is blown up and suspended in the air.

[0012] Optionally, the first detection portion is correspondingly arranged at the top end of the blowing rod, and the second detection portion is correspondingly arranged at the outer wall of the blowing rod. When the glass bottle is placed on the placement table, the second detection portion is correspondingly located at the bottle mouth of the glass bottle.

[0013] Optionally, the first detection part is connected to the second detection part as a whole through a connecting member, so that the first detection part and the second detection part can move synchronously.

[0014] Optionally, the first detection part includes a first detection positive electrode and a first detection negative electrode arranged at intervals, and the top ends of the first detection positive electrode and the first detection negative electrode are both inserted from the side wall of the blowing rod, and then passed out from the top end of the blowing rod, and are used to simultaneously contact the inner wall of the bottom of the glass bottle. The first detection positive electrode and the first detection negative electrode are both vertically slidably connected to the side wall of the blowing rod, and the blowing rod is made of insulating material.

[0015] Optionally, the second detection part includes a plurality of limit blocks circumferentially spaced around the outer wall of the blowing rod, the limit blocks are vertically slidably connected to the blowing rod, and each limit block is correspondingly penetrated by a pair of spaced-apart second detection positive electrodes and second detection negative electrodes, the second detection positive electrodes and the second detection negative electrodes are used to simultaneously contact the inner wall of the bottle mouth of the glass bottle, and a gap is left between the limit block and the inner wall of the bottle mouth of the glass bottle, and the limit block is made of insulating material.

[0016] Optionally, a clamping piece is provided on the side wall of each of the limit blocks away from the blowing rod, and the clamping piece is horizontally slidably connected to the limit block. The clamping piece is made of an insulating and soft material. The clamping pieces on all the limit blocks are used to simultaneously clamp the inner wall of the bottle mouth of the glass bottle so that all the limit blocks rise synchronously with the glass bottle.

[0017] Optionally, a driving channel is opened in the limit block, and the tightening member is correspondingly arranged at one end of the driving channel. The other end of the driving channel is used for external air supply equipment, and the tightening member is used to tighten the inner wall of the bottle mouth of the glass bottle under the drive of the airflow in the driving channel.

[0018] Optionally, a high temperature zone and a low temperature zone are provided in the drying oven, and the first detection part and the second detection part are used to perform drying detection on the glass bottles in the low temperature zone by using a surface resistivity test method.

[0019] In summary, this application has at least one of the following beneficial effects:

[0020] 1. Generally, the glass bottles to be dried are placed upside down on the placement table, so that the residual water in the bottles can actively flow out of the bottles under the action of their own gravity, which can greatly reduce the time of removing water from the bottles. The blowing rod is inserted into the glass bottle from bottom to top through the bottle mouth, and then a hot air flow is introduced into the glass bottle through the blowing rod. The hot air flow is ejected upward and hits the inner wall of the bottom of the glass bottle, and then moves downward along the inner wall of the glass bottle. After sweeping the inner wall of the glass bottle, it is finally blown out of the glass bottle from the bottle mouth. The hot air flow can sweep all surfaces on the inner wall of the glass bottle. While actively blowing the water on the inner wall of the glass bottle out of the bottle, the temperature of the hot air flow can also be used to dry the water on the inner wall of the glass bottle, effectively improving the efficiency of drying the water in the bottle and reducing the energy consumption required during the drying process.

[0021] 2. The first and second detection parts are respectively provided on the top and outer side wall of the blowing rod. The first detection part detects the dryness of the inner wall of the bottom of the glass bottle, while the second detection part detects the dryness of the inner wall of the glass bottle at the bottle mouth. These two locations are where moisture is most likely to remain on the inner wall of the glass bottle. The first and second detection parts can simultaneously detect the dryness of these two locations, effectively improving the accuracy of the glass bottle dryness test results.

[0022] 3. By using airflow to drive all the pressing members to press against the inner wall of the bottle mouth of the glass bottle at the same time, when the glass bottle is blown up by the airflow, the glass bottle can drive the pressing members to rise synchronously, and the pressing members are arranged in the limit block, so the pressing members can drive the limit block and the second detection part to rise synchronously, and the second detection part is connected to the first detection part as a whole through the connecting part, so the first detection part will also rise with the glass bottle. Since the blowing rod, the limit block and the pressing members are all made of insulating materials, when the airflow blows up the glass bottle and suspends it in the air, the glass bottle is separated from other conductive objects in the outside world, and at this time both detection parts can rise synchronously with the glass bottle, and always keep in contact with the inner wall of the corresponding position of the glass bottle, so as to use the surface resistivity test method to detect the moisture dryness of the inner wall. The accuracy of the results measured when the glass bottle is suspended in the air is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram showing the overall structure of the drying equipment in accordance with an embodiment of the present application;

[0024] Figure 2 This is a schematic diagram of the internal structure of the drying equipment according to an embodiment of the present application;

[0025] Figure 3 This is a partial structural diagram showing the positional relationship between the glass bottle and the placement table in an embodiment of the present application;

[0026] Figure 4 This is a schematic diagram showing the partial structure of the blowing rod in an embodiment of the present application;

[0027] Figure 5 This is a schematic diagram showing the structure of the interior of the blowing rod and the first detection unit in an embodiment of the present application;

[0028] Figure 6 yes Figure 5 An enlarged schematic diagram at point A;

[0029] Figure 7 It is a cross-sectional schematic diagram showing the structure of the second detection unit according to an embodiment of the present application.

[0030] Explanation of the accompanying reference numerals: 1. Drying box; 11. Feed inlet; 12. Discharge outlet; 13. High-temperature zone; 14. Low-temperature zone; 15. Partition plate; 2. Conveyor belt; 21. Placement table; 3. Glass bottle; 4. Blow rod; 41. Buffer pad; 42. Lifting channel; 5. First detection part; 51. First detection positive electrode; 52. First detection negative electrode; 53. Positioning ring; 531. Retaining frame; 532. Return member; 6. Second detection part; 61. Limit block; 62. Second detection positive electrode; 63. Second detection negative electrode; 64. Tightening member; 7. Connecting member. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-7 This application is described in further detail.

[0032] The present application discloses a drying device for producing oral liquid glass bottles, referring to Figures 1 to 3The drying equipment for producing oral liquid glass bottles includes a drying oven 1 and a conveyor belt 2. The drying oven 1 is hollow and can accommodate the conveyor belt 2 and various equipment and components used to dry the glass bottles 3. The drying oven 1 is provided with a feed port 11 and a discharge port 12 at both ends along its length. The feed port 11 of the drying oven 1 is used to receive the cleaning equipment for the glass bottles 3. After cleaning, the glass bottles 3 can preferably be placed on the conveyor belt 2 by a robot. The conveyor belt 2 then transports the glass bottles 3 with moisture on the surface to the drying oven 1 for drying. The discharge port 12 of the drying oven 1 is used to connect to the oral liquid filling equipment. Similarly, the dried glass bottles 3 can be placed into the production line of the filling equipment by a robot.

[0033] The conveyor belt 2 is connected end to end in a ring shape and circulates horizontally in and out of the drying box 1. Both ends of the conveyor belt 2 along its own running direction extend outside the drying box 1, making it convenient for the robot to load and unload the glass bottles 3.

[0034] Multiple hollow-walled platforms 21 are spaced apart on the conveyor belt 2. These platforms are used to hold the glass bottles 3 to be dried. These platforms 21 are detachably connected to the conveyor belt 2, perhaps using bolts, to facilitate later assembly and disassembly of the platforms 21 as needed. To facilitate assembly and disassembly, the conveyor belt 2 is preferably made of metal, providing stable support for the platforms. The number of platforms 21 can be adjusted based on the actual length of the conveyor belt 2 to meet production needs.

[0035] The drying oven 1 is provided with a high-temperature zone 13 and a low-temperature zone 14, wherein the temperature in the high-temperature zone 13 of the drying oven 1 is higher than that in the low-temperature zone 14. A partition plate 15 is fixedly provided between the high-temperature zone 13 and the low-temperature zone 14 of the drying oven 1. The partition plate 15 can be a plate-like object made of a heat-insulating material such as a polyurethane foam board or a rock wool board. It can clearly separate the temperatures between the high-temperature zone 13 and the low-temperature zone 14, allowing the glass bottles 3 to be dried at high temperature in the high-temperature zone 13 and then quickly cooled to near room temperature in the low-temperature zone 14. The partition plate 15 is provided with a clearance slot for the placement table 21 and the glass bottles 3 to pass through at the position corresponding to the conveyor belt 2, allowing the placement table 21 and the glass bottles 3 to pass through the partition plate 15 smoothly during operation.

[0036] A heating tube and an exhaust duct are fixed to the top of the drying oven 1, corresponding to the high-temperature zone 13. The heating tube is an electric heating tube, which heats the high-temperature zone 13 inside the drying oven 1 when powered on. The exhaust duct can be connected to an external air supply device such as a blower, and the exhaust duct can also be equipped with an electric heating tube, so that the exhaust air blown out of the exhaust duct is hot air. The heating function of the heating tube and the blowing function of the exhaust duct can both dry the surface moisture of the glass bottles 3 to be dried. After drying, the glass bottles 3 pass through the partition 15 and enter the low-temperature zone 14 for cooling, so that the surface temperature of the glass bottles 3 is quickly cooled to room temperature or near room temperature, which is convenient for subsequent filling of oral liquid. The drying box 1 is provided with a cooling air duct inside the corresponding low-temperature zone 14, which can be connected to an external air supply device to blow a relatively low-temperature air flow to the glass bottles 3. At the same time, the glass bottles 3 in the low-temperature zone 14 also need to undergo a surface resistivity test to perform a drying test on the inner surface of the glass bottles 3. Therefore, the cooling air duct can be connected to an ion blower or other equipment that can provide deionized air, which can eliminate static electricity on the surface of the glass bottles 3 when the surface resistivity test is performed on the glass bottles 3, so as to prevent interference with the detection process caused by static electricity.

[0037] Further, refer to Figures 3 to 7 Each placement platform 21 is provided with a corresponding blow rod 4. The blow rod 4 is vertically extended from bottom to top through the placement platform 21, and the top of the blow rod 4 protrudes upward from the top surface of the placement platform 21. The glass bottles 3 to be dried are placed upside down outside the blow rod 4, so that the glass bottles 3 completely cover the blow rod 4. The height of the upward protrusion of the blow rod 4 depends on the actual height of the glass bottles 3. When the bottle mouth of the glass bottle 3 directly contacts the top surface of the placement platform 21, the top of the blow rod 4 does not contact the inner wall of the bottom of the glass bottle 3. When the glass bottle 3 is placed, the blow rod 4 will not cause damage to the inner wall of the glass bottle 3 due to collision. In other embodiments of the present application, the blow rod 4 can also be designed as a retractable structure with an outer tube inside an inner tube, so that the blow rod 4 can flexibly adjust its own length according to the actual size of the glass bottle 3.

[0038] The blow rod 4 is hollow inside and has a through hole at its top. The bottom end of the blow rod 4 can be connected to an external air supply device that provides hot air, or it can directly share the same air source with the exhaust duct of the high-temperature zone 13. To further prevent the top of the blow rod 4 from colliding with the inner wall of the bottom of the glass bottle 3, a buffer pad 41 is fixed to the top of the blow rod 4. The buffer pad 41 can be made of elastic rubber. A gap is also left between the top of the buffer pad 41 and the inner wall of the bottom of the glass bottle 3. A lifting channel 42 is formed at the center of the buffer pad 41 and communicates with the hollow inner cavity of the blow rod 4. This allows the gas flowing through the blow rod 4 to eventually be sprayed toward the inner bottom wall of the glass bottle 3 through the lifting channel 42 at the center of the buffer pad 41.

[0039] During loading, the robot inverts the glass bottle 3 to be dried onto the placement table 21, allowing the remaining moisture in the bottle to actively flow downward out of the bottle under the action of its own gravity, which can significantly reduce the time required to remove the moisture in the bottle. The blowing rod 4 is inserted from bottom to top through the bottle mouth into the glass bottle 3, and then a hot air flow is introduced into the glass bottle 3 through the blowing rod 4. The hot air flow is ejected upward and hits the inner wall of the bottom of the glass bottle 3, then moves downward along the inner wall of the glass bottle 3, sweeping across the inner wall of the glass bottle 3, and finally blown out of the glass bottle 3 from the bottom bottle mouth. The hot air flow can sweep across all surfaces on the inner wall of the glass bottle 3. While actively blowing the moisture on the inner wall of the glass bottle 3 out of the bottle, it can also use the temperature of the hot air flow to dry the moisture on the inner wall of the glass bottle 3, effectively improving the efficiency of drying the moisture in the bottle and reducing the energy consumption required during the drying process.

[0040] When the air flow is blowing against the inner bottom wall of the glass bottle 3 through the blowing rod 4, the flow rate of the blowing air flow can be controlled so that the air flow blows the glass bottle 3 upward away from the surface of the placement table 21 after hitting the inner wall of the bottle bottom. After the glass bottle 3 is blown into a suspended state, the air flow is controlled to maintain a stable flow rate to blow towards the glass bottle 3, so that the glass bottle 3 is always kept in a stable suspended state, and the hot air flow can be blown out smoothly from the bottom bottle mouth, and the moisture inside the glass bottle 3 can also flow out from the bottle mouth. In other embodiments of the present application, a temperature sensor can be directly provided inside the blowing rod 4 or in a pipe connected to the blowing rod 4 to monitor the temperature of the air flow blown out by the blowing rod 4, so that the temperature of the air flow blown out by the blowing rod 4 is lower than the temperature blown out by the top exhaust pipe. The corresponding method can be to extend the length of the pipe so that the air flow gradually decreases to the target temperature in the pipe before blowing it out.

[0041] After the inner and outer surfaces of the glass bottle 3 are dried in the high-temperature zone 13, they then pass through the partition plate 15 into the low-temperature zone 14 to be blown by deionized air for sufficient cooling. During the cooling process, moisture drying is detected. Since the glass bottle 3 is used to hold oral liquid, the moisture detection is mainly performed on the inner wall surface of the glass bottle 3 in the embodiment of the present application. Specifically, the detection module includes a first detection unit 5 and a second detection unit 6, which can use the surface resistivity test method to perform a dryness detection on the inner wall of the glass bottle 3. The first detection unit 5 is correspondingly arranged at the top of the blowing rod 4 and can perform a dryness detection on the inner wall position of the bottom of the glass bottle 3. The second detection unit 6 is correspondingly arranged on the outer wall of the blowing rod 4. When the glass bottle 3 is placed on the placement table 21, the second detection unit 6 is correspondingly located at the bottle mouth of the glass bottle 3 and can perform a dryness detection on the inner wall of the bottle mouth of the glass bottle 3.

[0042] The first detection part 5 includes a first detection positive electrode 51 and a first detection negative electrode 52, which are arranged at intervals. In the embodiment of the present application, the first detection positive electrode 51 and the first detection negative electrode 52 are symmetrically distributed along the axis of the blowing rod 4, and the top ends of the first detection positive electrode 51 and the first detection negative electrode 52 are both inserted from the side wall of the blowing rod 4, and then passed upward from the buffer pad 41 at the top end of the blowing rod 4. The top ends of the first detection positive electrode 51 and the first detection negative electrode 52 are both in contact with the inner wall of the bottom of the glass bottle 3. The bottom ends of the first detection positive electrode 51 and the first detection negative electrode 52 are respectively used for the positive and negative electrodes of an external excitation power supply. The external power supply can apply a test voltage to the inner wall surface of the bottle bottom through the first detection positive electrode 51 and the first detection negative electrode 52, and then detect the real-time current of the glass bottle 3 at the pressure voltage position.

[0043] A control unit (not shown) with a computing and analysis chip is provided outside the drying box 1. The voltage applied by the detection electrode to the inner wall of the bottom of the glass bottle 3 and the current flowing through the bottle are transmitted to the control unit for calculation. Finally, the surface resistivity of the detection position is obtained and compared with the detection parameters of the fully dried glass bottle 3 sample. After the first positive detection electrode 51 and the first negative detection electrode 52 simultaneously contact the inner bottom wall of the glass bottle 3, a detection voltage is applied to the inner wall of the glass bottle 3. The detection electrode then transmits the measured current passing through the detection area back to the control unit. According to Ohm's law, the surface resistivity of the detection area can be calculated. If the moisture at the detection location of the glass bottle 3 is not completely dried, the current passing through is large, and the final measured surface resistivity will be lower than the surface resistivity of the standard sample. This indicates that the moisture on the inner wall of the glass bottle 3 at the detection location is not completely dried. The glass bottle 3 continues to follow the conveyor belt 2 and rotates another circle in the drying oven 1 to continue drying. Conversely, if the final measured surface resistivity is equal to or greater than the surface resistivity of the standard sample, it indicates that the moisture on the inner wall of the glass bottle 3 at the detection location is completely dried and can be transferred to the next filling process. It should be noted that in order to control the variable, the voltage applied by the detection electrode to the glass bottle 3 to be tested needs to be consistent with the voltage applied to the standard sample.

[0044] In order to avoid interference with moisture detection, the blowing rod 4 can be made of common insulating materials such as polyethylene and polyvinyl chloride. The first detection positive electrode 51 and the first detection negative electrode 52 are both made of conductive metal materials, and are both vertically slidably connected to the side wall of the blowing rod 4. Except for the top part where the metal material leaks out of the first detection positive electrode 51 and the first detection negative electrode 52, the rest of the outside is covered with an insulating protective skin. A positioning ring 53 is sleeved on the outer wall of the blowing rod 4 and slidably connected. The first detection positive electrode 51 and the first detection negative electrode 52 are both passed through the positioning ring 53 and connected as a whole by the positioning ring 53, so that the first detection positive electrode 51, the first detection negative electrode 52 and the positioning ring 53 can slide up and down along the outer wall of the blowing rod 4 as a whole.

[0045] To maintain constant contact between the top ends of the first positive detection electrode 51 and the first negative detection electrode 52 and the inner wall of the bottle bottom, two retaining frames 531 are slidably connected to the interior of the positioning ring 53. The first positive detection electrode 51 and the first negative detection electrode 52 are each inserted through one of the retaining frames 531 and fixedly connected thereto. Each retaining frame 531 is provided with a restoring element 532 at its bottom. This restoring element 532 can be a spring. The ends of the restoring element 532 abut against the retaining frame 531 and the inner wall of the positioning member, respectively. The restoring force generated by the pressure on the restoring element 532 pushes the retaining frame 531 upward, ensuring that the first positive detection electrode 51 and the first negative detection electrode 52 maintain contact with the inner wall of the glass bottle 3. The elasticity of the restoring element 532 can be adjusted based on the actual contact between the electrodes and the inner wall of the bottle, ensuring that the first positive detection electrode 51 and the first negative detection electrode 52 maintain contact with the inner wall of the bottle without damaging the inner wall.

[0046] Furthermore, the second detection portion 6 includes a plurality of limit blocks 61 circumferentially spaced around the outer wall of the blow rod 4. In the embodiment of the present application, there are three limit blocks 61, which are connected as a whole by a fixing ring. The limit blocks 61 are vertically slidably connected to the outer wall of the blow rod 4. The positioning ring 53 is connected as a whole to the limit blocks 61 by a connector 7, so that the positioning ring 53 and the three limit blocks 61 can move up and down synchronously. Each limit block 61 is correspondingly provided with a pair of second detection positive electrodes 62 and second detection negative electrodes 63 spaced apart. Each pair of second detection positive electrodes 62 and second detection negative electrodes 63 can simultaneously contact the inner wall of the bottle mouth of the glass bottle 3. The second detection positive electrodes 62 and second detection negative electrodes 63 can also be maintained in contact with the inner wall of the bottle mouth by a retaining frame 531 and a return member 532 in a manner similar to the first detection positive electrodes 51 and the first detection negative electrodes 52.

[0047] There is a gap between the limit block 61 and the inner wall of the bottle mouth of the glass bottle 3. This gap provides sufficient space for the placement of the glass bottle 3, so that the inner wall of the glass bottle 3 will not contact the limit block 61 when it is properly placed. At the same time, this gap can also allow the first detection positive electrode 51 and the first detection negative electrode 52 to pass out of the glass bottle 3 without affecting the movement of the glass bottle 3. The limit block 61 can preferably be made of insulating materials such as rubber or plastic to avoid interfering with the detection of the second detection part 6. In order to ensure that the second detection part 6 can rise synchronously with the glass bottle 3 when the glass bottle 3 is suspended in the air during blowing, each limit block 61 is provided with a fastening member 64 on the side wall away from the blowing rod 4. The fastening member 64 is arranged in the middle of the same pair of second detection positive pole 62 and second detection negative pole 63. The fastening member 64 can also be made of insulating and soft materials such as silicone. The fastening member 64 is horizontally slidably connected to the limit block 61. When the fastening members 64 on all the limit blocks 61 are pressed against the inner wall of the bottle mouth of the glass bottle 3 at the same time, all the limit blocks 61 rely on the friction between the fastening member 64 and the inner wall of the glass bottle 3 to rise synchronously with the glass bottle 3.

[0048] Furthermore, a drive channel is defined within the limit block 61, and a pressing member 64 slides correspondingly at one end of the top of the drive channel. The other end of the drive channel can be connected to an external air supply device such as a blower through a pipeline, or can be directly connected to an air supply device cognate with the blowing rod 4 through a pipeline. The limit block 61 is sealedly connected to the drive channel. When an external air supply device introduces airflow into the drive channel, the air pressure within the drive channel increases, and the pressing member 64 moves outward under the combined force of the airflow and air pressure until it presses against the inner wall of the glass bottle 3. The pressing force between the pressing member 64 and the inner wall of the glass bottle 3 can be adjusted multiple times in the early stages to ensure that the friction between the pressing member 64 and the inner wall of the glass bottle 3 is sufficient to support the synchronous movement of the limit block 61.

[0049] After drying, the surface resistivity of the inner wall surface of the glass bottle 3 is tested. A first detection part 5 and a second detection part 6 are respectively provided on the blowing rod 4. The first detection part 5 corresponds to detecting the dryness of the inner wall of the bottom of the glass bottle 3, and the second detection part 6 corresponds to detecting the dryness of the inner wall of the glass bottle 3 at the bottle mouth. These two positions are the two places where moisture is most likely to remain on the inner wall of the glass bottle 3. The first detection part 5 and the second detection part 6 can simultaneously perform dryness detection on these two positions, effectively improving the accuracy of the dryness detection results of the glass bottle 3. At the same time, the airflow drives all the clamping members 64 to simultaneously press against the inner wall of the bottle mouth of the glass bottle 3. At this time, the friction between the clamping members 64 and the inner wall of the glass bottle 3 drives the limit block 61 to move as a whole, so that when the glass bottle 3 is blown up by the airflow and suspended in the air, the glass bottle 3 can drive the second detection part 6 to rise as a whole synchronously through the clamping members 64, and the limit block 61 is connected to the positioning ring 53 as a whole through the connecting member 7, so the positioning ring 53 will also rise with the glass bottle 3, so that the first detection positive electrode 51 and the first detection negative electrode 52 are also kept in contact with the inner wall of the glass bottle 3 at all times. Since the blowing rod 4, the limit block 61 and the fastening member 64 are all made of insulating materials, when the airflow blows the glass bottle 3 up and suspends it in the air, the glass bottle 3 is separated from other conductive objects in the outside world, and at this time, the two detection parts can rise synchronously with the glass bottle 3, and always keep the detection electrodes in contact with the inner wall of the glass bottle 3 at the corresponding position, so as to use the surface resistivity test method to detect the moisture dryness of the inner wall, and the accuracy of the results measured when the glass bottle 3 is suspended in the air is greatly improved.

[0050] When conventional image detection methods are used to detect the dryness of glass bottles 3, there are many interfering factors. A common example is background noise. Glass products in actual production may have complex textures, colors, or patterns. This background information may be mistaken for residual moisture or mask actual moisture traces, resulting in deviations in the detection results. Another example is the problem of reflection and refraction. Due to the transparency and reflectivity of glass, the detection of its surface features is easily affected by environmental and lighting conditions. Under different lighting conditions, glass produces a variety of reflection and refraction effects, which can interfere with the image detection equipment's accurate identification of residual moisture. Another example is hardware limitations. High-quality image capture requires high-performance cameras and lighting equipment, which not only increases the cost of the system but also places higher demands on its maintenance. Another example is the need for dynamic changes. In a production line environment, glass bottles 3 are in a state of continuous movement, which requires the image acquisition system to respond quickly and maintain stable detection performance under constantly changing viewing angles, which undoubtedly increases the difficulty of detection.

[0051] When the present application adopts the surface resistivity test method to detect the dryness of the inner wall of the glass bottle 3, the surface resistivity test of the glass bottle 3 is performed in a suspended state, thereby greatly reducing the interference of external factors on the test, and thus the accuracy of the test result is greatly improved. The surface resistivity test method can be used to perform point-to-point detection of the inner wall of the glass bottle 3, and can be used to detect key positions on the inner wall of the glass bottle 3 where moisture is likely to remain. In addition, the equipment used for the surface resistivity test is relatively simple, so it can also effectively reduce the cost of the detection equipment.

[0052] The implementation principle of the drying equipment for producing oral liquid glass bottles in the embodiment of the present application is as follows: the glass bottles 3 are dried in the high temperature zone 13, and the inverted glass bottles 3 help the remaining water in the bottles to actively flow downward out of the bottles under the action of their own gravity, which can greatly reduce the time for removing water in the bottles, and then a hot air flow is introduced into the glass bottles 3 by the blowing rod 4. The hot air flow can sweep all surfaces on the inner wall of the glass bottles 3. While actively blowing the water on the inner wall of the glass bottles 3 out of the bottles, the temperature of the hot air flow can also be used to dry the water on the inner wall of the glass bottles 3, effectively improving the efficiency of drying the water in the bottles and reducing the drying time. The energy consumption required during the drying process; the glass bottle 3 is then cooled in the low temperature zone 14, and the glass bottle 3 is blown up by the air flow and suspended in the air. The limit block 61 and the positioning ring 53 synchronously follow the glass bottle 3 to rise, so that the first detection positive electrode 51 and the first detection negative electrode 52 are always kept in contact with the inner wall of the glass bottle 3, and the second detection positive electrode 62 and the second detection negative electrode 63 are always kept in contact with the inner wall of the bottle mouth. At this time, the glass bottle 3 is separated from other conductive objects in the outside world. At the same time, the surface resistivity test method is used to detect the moisture drying condition of the inner wall. The accuracy of the results measured when the glass bottle 3 is suspended in the air is greatly improved.

[0053] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A drying device for producing oral liquid glass bottles, characterized by: include The drying box is equipped with a drying module and a detection module in sequence. The drying module is used to blow air to dry the glass bottles, and the detection module is used to detect the drying state of the inner wall of the glass bottles; The conveyor belt runs in the drying box, and multiple placement platforms are arranged at intervals on the conveyor belt for glass bottles to be placed upside down; The drying module includes an air blowing assembly, which is used to blow up the glass bottle and suspend it in the air. The detection module uses a surface resistivity test method to perform a dryness test on the suspended glass bottle. The detection module includes a first detection part and a second detection part. When the glass bottle is placed on the placement table, the first detection part is used to perform a dryness test on the inner wall of the bottom of the glass bottle, and the second detection part is used to perform a dryness test on the inner wall of the bottle mouth of the glass bottle. The blowing assembly includes a hollow blowing rod, which corresponds to the placement table one by one and has a top that vertically penetrates the top surface of the placement table. The blowing rod is used to be inserted into the glass bottle from bottom to top. A buffer pad is provided on the top of the blowing rod, and a lifting through hole is opened through the center of the buffer pad. The other end of the blowing rod is used to connect to an external air supply device. The blowing rod is used to blow air against the inner bottom wall of the glass bottle so that the glass bottle is blown up and suspended in the air. The first detection part is correspondingly arranged at the top of the blowing rod, and the second detection part is correspondingly arranged at the outer wall of the blowing rod. When the glass bottle is placed on the placement table, the second detection part is correspondingly located at the bottle mouth of the glass bottle; The second detection part includes a plurality of limit blocks arranged at circumferential intervals around the outer wall of the blowing rod, the limit blocks are vertically slidably connected to the blowing rod, each limit block is correspondingly provided with a pair of second detection positive electrodes and second detection negative electrodes arranged at intervals, the second detection positive electrodes and the second detection negative electrodes are used to contact the inner wall of the bottle mouth of the glass bottle at the same time, and a gap is left between the limit block and the inner wall of the bottle mouth of the glass bottle, and the limit block is made of insulating material; a clamping piece is passed through the side wall of each limit block away from the blowing rod, and the clamping piece is horizontally slidably connected to the limit block, and the clamping piece is made of insulating and soft material, and the clamping pieces on all limit blocks are used to clamp the inner wall of the bottle mouth of the glass bottle at the same time, so that all limit blocks rise synchronously with the glass bottle; a driving channel is opened in the limit block, the clamping piece is correspondingly arranged at one end of the driving channel, and the other end of the driving channel is used for external air supply equipment, and the clamping piece is used to clamp the inner wall of the bottle mouth of the glass bottle under the drive of the airflow in the driving channel.

2. The drying equipment for producing oral liquid glass bottles according to claim 1, characterized in that: The first detection part is connected to the second detection part as a whole through a connecting piece, so that the first detection part and the second detection part can move synchronously.

3. The drying equipment for producing oral liquid glass bottles according to claim 1, characterized in that: The first detection part includes a first detection positive electrode and a first detection negative electrode arranged at intervals. The top ends of the first detection positive electrode and the first detection negative electrode are both inserted from the side wall of the blowing rod and then passed out from the top end of the blowing rod, and are used to simultaneously contact the inner wall of the bottom of the glass bottle. The first detection positive electrode and the first detection negative electrode are both vertically slidably connected to the side wall of the blowing rod, and the blowing rod is made of insulating material.

4. The drying equipment for producing oral liquid glass bottles according to claim 1, characterized in that: A high temperature zone and a low temperature zone are provided in the drying oven. The first detection part and the second detection part are used to perform drying detection on the glass bottles in the low temperature zone by using a surface resistivity test method.

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