Glue supplementing method and system

Abstract

The invention relates to a glue supplementing method and system, and the glue supplementing method comprises the steps: determining a preset glue supplementing speed according to a glue solution consumption speed; according to the liquid level interval where the liquid level of the glue solution is located, a glue supplementing mode for supplementing glue into the glue solution container is switched, so that the glue supplementing speed in the glue supplementing mode is dynamically balanced with the consumption speed of the glue solution based on the preset speed, and a plurality of different liquid level intervals are preset in the glue solution container. Through dynamic association of the glue supplementing speed and the preset speed, the glue supplementing speed and the consumption speed reach dynamic balance so as to accurately match the consumption speed, and hysteresis of glue supplementing is avoided; by dividing the liquid level interval and matching different glue supplementing modes, the graded adjustment of the glue supplementing speed is realized; and a switching mechanism triggered by a liquid level is adopted, so that the dynamic matching of the glue supplementing speed and the consumption speed is realized. According to the glue supplementing method, the stability of the liquid level of the glue solution is realized, the phenomenon of shortage or overflow of the glue solution is effectively avoided, and the continuity of the production process and the consistency of the product quality are guaranteed.

Description

Technical Field

[0001] This application relates to the field of industrial automation control technology, and in particular to a glue application method and glue application system. Background Technology

[0002] In industrial sectors such as electronics manufacturing and machinery assembly, adhesive coating is a critical step, and a stable supply of adhesive directly impacts product quality and production efficiency. In related technologies, the replenishment of adhesive containers is typically done manually. However, manual replenishment relies on operator skill and makes it difficult to accurately match the actual consumption rate. Summary of the Invention

[0003] To overcome the problems existing in the related technologies, this application provides a glue filling method and glue filling system.

[0004] According to a first aspect of the present disclosure, a method for applying adhesive is provided, comprising:

[0005] Determine the preset speed for glue replenishment based on the glue consumption rate;

[0006] Based on the liquid level range of the adhesive, the glue replenishment mode for replenishing the adhesive in the adhesive container is switched so that the glue replenishment speed in the glue replenishment mode is dynamically balanced with the adhesive consumption rate based on the preset speed. Herein, multiple different liquid level ranges are preset in the adhesive container.

[0007] In some embodiments, determining the preset speed based on the adhesive consumption rate includes:

[0008] The preset speed is linearly positively correlated with the maximum value of the adhesive consumption rate.

[0009] In some embodiments, the liquid level range includes a liquid addition range, a normal range, and a consumption range respectively arranged from bottom to top along the direction of gravity;

[0010] The glue application mode includes a first glue application mode, a second glue application mode, and a third glue application mode;

[0011] The method of switching the glue replenishment mode to replenish glue into the glue container based on the glue level range includes:

[0012] When the adhesive liquid level is in the liquid addition range, the adhesive replenishment mode is the first adhesive replenishment mode, and in the first adhesive replenishment mode, the adhesive replenishment speed is higher than the preset speed;

[0013] When the adhesive level is within the normal range, the adhesive replenishment mode is the second adhesive replenishment mode, and in the second adhesive replenishment mode, the adhesive replenishment speed is the same as the preset speed;

[0014] When the adhesive level is in the consumption range, the adhesive replenishment mode is the third adhesive replenishment mode, and in the third adhesive replenishment mode, the adhesive replenishment speed is lower than the preset speed.

[0015] In some embodiments, when the first glue application mode is triggered, the glue application speed is N times the preset speed, where the value of N is greater than 1;

[0016] When the third glue replenishment mode is triggered, the glue replenishment speed is M times the preset speed, where the value of M is less than 1.

[0017] In some embodiments, the liquid level threshold of the liquid addition zone is less than a first preset proportion of the volume of the adhesive container;

[0018] The liquid level threshold of the consumption range is greater than a second preset ratio of the volume of the adhesive container;

[0019] The liquid level threshold in the normal range is greater than that in the liquid addition range and less than that in the consumption range, and the first preset ratio is less than the second preset ratio.

[0020] In some embodiments, when the number of times the adhesive level is continuously in the addition range exceeds a preset number, the adhesive replenishment speed is reduced according to a first preset algorithm;

[0021] When the number of times the adhesive liquid level is continuously in the consumption range exceeds the preset number, the adhesive replenishment speed increases according to the second preset algorithm.

[0022] In some embodiments, the first preset algorithm is: v = (1 - a * b) x )*v1;

[0023] The second preset algorithm is: v = (1 + a * b) x )*v1;

[0024] Where v is the glue replenishing speed, a is the first preset coefficient, b is the second preset coefficient and the value of b is greater than 1, x is the number of times the glue liquid level is continuously in the liquid addition interval or continuously in the consumption interval, and v1 is the glue replenishing speed before the value of x increases.

[0025] When the state of the adhesive liquid level continuously being in the liquid addition interval or continuously being in the consumption interval is interrupted, x is reset to 0.

[0026] In some embodiments, the liquid level threshold of the liquid level range is determined by at least one of the volume of the adhesive container and the adhesive consumption rate.

[0027] According to a second aspect of the present disclosure, a glue application system is provided for implementing the glue application method as described in the first aspect, the glue application system comprising:

[0028] A liquid storage device for containing the liquid adhesive, wherein the liquid storage device is divided into different liquid level zones;

[0029] A liquid level detection device is disposed in the adhesive storage container. The liquid level detection device is used to detect the liquid level of the adhesive in the adhesive storage container and output a liquid level signal. The liquid level signal includes the liquid level range corresponding to the liquid level of the adhesive.

[0030] A glue filling line is connected to the glue storage device, and the glue filling line is used for glue filling.

[0031] The control module is electrically connected to the liquid level detection device and is used to switch to the corresponding glue replenishment mode according to the liquid level signal, and to replenish the glue to the glue storage through the glue replenishment pipeline, so that the glue replenishment speed is dynamically balanced based on the preset speed and the consumption speed.

[0032] In some embodiments, the liquid level range includes a liquid addition range, a normal range, and a consumption range;

[0033] The liquid level detection device includes at least two liquid level sensors that are electrically connected to the control module. The two liquid level sensors are located at a first position and a second position in the adhesive storage device. The first position is the boundary between the liquid addition range and the normal range, and the second position is the boundary between the normal range and the consumption range. The two liquid level sensors are used to output the liquid level signal.

[0034] The technical solutions provided by the embodiments of this application can include the following beneficial effects: This application dynamically correlates the glue replenishment speed with a preset speed, enabling a dynamic balance between the glue replenishment speed and the consumption speed to accurately match the consumption speed and avoid glue replenishment lag; by dividing the liquid level range and matching different glue replenishment modes, it achieves graded adjustment of the glue replenishment speed; and by adopting a liquid level-triggered switching mechanism, it achieves dynamic matching between the glue replenishment speed and the consumption speed. The above glue replenishment method achieves the stability of the glue liquid level, effectively avoiding glue shortage or overflow, and ensuring the continuity of the production process and the consistency of product quality.

[0035] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0036] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0037] Figure 1 This is a schematic diagram illustrating a glue application method according to an exemplary embodiment.

[0038] Figure 2 This describes the glue replenishment mode and glue replenishment speed corresponding to different liquid level ranges, according to an exemplary embodiment. Detailed Implementation

[0039] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0040] In industrial sectors such as electronics manufacturing and machinery assembly, adhesive coating is a crucial step, and a stable supply of adhesive directly impacts product quality and production efficiency. In related technologies, the replenishment of adhesive containers is typically done manually. Manual replenishment relies on operator skill and is difficult to accurately match the actual consumption rate. Traditional replenishment methods suffer from the following problems: manual judgment of remaining adhesive is subject to visual errors; replenishment timing lags behind actual consumption needs; a single replenishment speed cannot adapt to dynamically changing consumption conditions; and fluctuations in adhesive level easily lead to over- or under-replenishment.

[0041] Therefore, this application proposes a glue replenishment method that dynamically replenishes glue according to the actual consumption rate of the glue, so that the replenishment rate and the consumption rate reach a dynamic balance, thereby ensuring the stability of the glue level.

[0042] like Figure 1 As shown, the glue application methods include:

[0043] S1. Determine the preset speed for glue replenishment based on the glue consumption rate.

[0044] In S1, the glue consumption rate is the actual amount of glue used per unit time. It can be obtained in real time by a flow meter or based on historical consumption data. It is a benchmark parameter used to establish the glue replenishment rate.

[0045] The preset speed is the initial set rate for the glue replenishment operation. It can be calculated proportionally based on the maximum consumption speed. For example, the preset speed is 1.2 times the maximum consumption speed. This parameter serves as the baseline adjustment amount for different glue replenishment modes.

[0046] S2. Based on the liquid level range of the adhesive, switch the glue replenishment mode to replenish the adhesive in the adhesive container, so that the glue replenishment speed in the glue replenishment mode is dynamically balanced with the adhesive consumption speed based on the preset speed. There are multiple different liquid level ranges preset in the adhesive container.

[0047] In S2, the liquid level range is a set of multiple liquid levels that divide the volume of the adhesive container according to a preset ratio. Specifically, a liquid level sensor can be used to detect the current liquid level range. For example, the container height can be divided into the bottom 30% as the liquid addition range, the middle 40% as the normal range, and the top 30% as the consumption range. The graded control of adhesive replenishment can be achieved through the range division.

[0048] The glue replenishment mode is a differentiated glue replenishment speed set for different liquid level ranges. For example, high-speed glue replenishment is performed in the liquid addition range, constant-speed glue replenishment is used in the normal range, and slow-speed glue replenishment or glue replenishment is paused in the consumption range.

[0049] Specifically, when the adhesive level is in the replenishment zone, high-speed adhesive replenishment is used to quickly raise the level to the normal zone. At this time, the replenishment speed can be 1.5, 2, or 3 times the preset speed, or the replenishment speed can change in real time according to a preset algorithm. Once the level enters the normal zone, it switches to constant-speed adhesive replenishment, where the replenishment speed remains consistent with the preset speed, ensuring a basic balance between the replenished and consumed adhesive. If the level rises into the consumption zone, low-speed adhesive replenishment or pausing replenishment is used to lower the level back to the normal zone, preventing adhesive overflow. This tiered control method uses real-time feedback from level detection to adjust the replenishment speed, allowing the adhesive supply to adapt to fluctuations in consumption rate. For example, when equipment accelerates production, causing a sudden increase in consumption rate, a drop in the level triggers high-speed adhesive replenishment to promptly fill the adhesive gap; when the equipment is paused, the consumption rate returns to zero, and a rise in the level triggers slow-speed adhesive replenishment or pausing replenishment, preventing adhesive overflow.

[0050] This application dynamically links the glue replenishment speed with a preset speed, achieving a dynamic balance between the replenishment and consumption rates to precisely match the consumption rate and avoid glue replenishment lag. By dividing the liquid level range and matching different replenishment modes, it achieves graded adjustment of the glue replenishment speed. Furthermore, a liquid level-triggered switching mechanism enables dynamic matching of the replenishment and consumption rates. These glue replenishment methods ensure the stability of the glue level, effectively preventing glue shortages or overflows, and guaranteeing the continuity of the production process and the consistency of product quality.

[0051] In some embodiments, a preset speed is determined based on the maximum value of the adhesive consumption rate, in a linear positive correlation.

[0052] Specifically, the system can detect the glue consumption rate in real time and extract its maximum value, then set a corresponding proportional relationship through a linear equation. The linear positive correlation means that the preset rate and the maximum glue consumption rate increase or decrease proportionally, which can be achieved by setting a proportionality coefficient or establishing a linear function model.

[0053] During glue replenishment, the maximum glue consumption rate can be obtained by monitoring historical data from equipment operation. For example, the maximum consumption rate can be recorded over multiple cycles of continuous equipment operation, and a preset speed can be set as a fixed percentage of this maximum value. When the maximum glue consumption rate is 100 ml per minute, the preset speed can be set to 120 ml per minute, with a linear relationship where the preset speed is 1.2 times the maximum glue consumption rate. During glue replenishment, when the actual consumption rate reaches its maximum value, the preset speed synchronously increases to the corresponding level, ensuring dynamic matching between the replenishment speed and the consumption rate.

[0054] This application, by directly linking to the maximum consumption rate, can predict extreme working conditions in advance and adjust the speed parameters, avoiding interruptions in adhesive supply or waste of resources caused by speed mismatch.

[0055] This application achieves a dynamic balance between the glue replenishment speed and the glue consumption rate, ensuring a stable glue supply even under maximum consumption conditions. The linear positive correlation setting allows the glue replenishment speed to adjust according to the maximum consumption rate, adapting to changes in equipment operating conditions without manual intervention and reducing problems such as glue overflow or insufficient supply caused by unreasonable speed settings.

[0056] In some embodiments, such as Figure 2 As shown, the liquid level range includes a filling range, a normal range, and a consumption range, which are arranged from bottom to top along the direction of gravity. The glue replenishment modes include a first replenishment mode, a second replenishment mode, and a third replenishment mode. The replenishment mode switches according to the liquid level range of the glue. Specifically: when the glue level is in the filling range, the first replenishment mode is used, and the replenishment speed is higher than the preset speed; when the glue level is in the normal range, the second replenishment mode is used, and the replenishment speed is the same as the preset speed; when the glue level is in the consumption range, the third replenishment mode is used, and the replenishment speed in the third replenishment mode is lower than the preset speed. In the third replenishment mode, the replenishment speed can also be 0.

[0057] The adhesive supply zone is the low-level area at the bottom of the container. When the level is in this zone, it indicates that the level is too low and additional adhesive needs to be added to prevent insufficient supply. The normal zone is the middle-level area above the supply zone. When the level is in this zone, the current level is appropriate and the adhesive supply rate is balanced with the consumption rate. The consumption zone is the high-level area at the top of the container. When the level is at the consumption rate, it indicates that the level is too high and the adhesive supply rate needs to be reduced or stopped to prevent overflow.

[0058] During the glue replenishment process, glue replenishment can be achieved using a glue replenishment pump. In the first glue replenishment mode, the glue replenishment speed is increased by increasing the power of the glue replenishment pump or by increasing the opening of the valve in the glue replenishment pipeline. In the second glue replenishment mode, the glue replenishment speed is synchronized with the consumption rate by maintaining the power of the glue replenishment pump and the opening of the valve in the glue replenishment pipeline. In the third glue replenishment mode, the glue replenishment speed is reduced by decreasing the power of the glue replenishment pump or by decreasing the opening of the valve in the glue replenishment pipeline. When the glue replenishment speed reaches 0, the glue replenishment pump is turned off.

[0059] When the level sensor detects that the adhesive level is in the filling range, the first adhesive replenishment mode is activated. For example, the adhesive replenishment speed is increased to 1.5 times the preset speed to quickly replenish the adhesive and restore the adhesive level to the normal range. In the first adhesive replenishment mode, the adhesive replenishment speed can also be dynamically changed according to the adhesive replenishment situation using a preset algorithm. The high-speed adhesive replenishment in the filling range shortens the duration of the low liquid level state.

[0060] Once the liquid level rises to the normal range, switch to the second glue replenishment mode to maintain the glue replenishment speed consistent with the glue consumption rate.

[0061] If the liquid level rises to the consumption zone, switch to the third glue replenishment mode, for example, setting the glue replenishment speed to half of the preset speed. Alternatively, in the third glue replenishment mode, the glue replenishment speed changes dynamically based on the glue replenishment situation using a preset algorithm. Slowing down or pausing glue replenishment in the consumption zone avoids the risk of overflow due to excessive liquid level. Of course, depending on the actual operating conditions, glue replenishment can also be paused directly when the liquid level rises to the consumption zone. Or, glue replenishment can be paused when the liquid level is at a preset position within the consumption zone; that is, for example, when the liquid level rises from the normal range to the consumption zone, the glue replenishment speed is reduced, and if the liquid level continues to rise to the preset position, glue replenishment is paused.

[0062] This application achieves dynamic adjustment by dividing the liquid level into three zones and matching them with different glue replenishment modes. High-speed glue replenishment is used in the replenishment zone, synchronous glue replenishment is maintained in the normal replenishment zone, and glue replenishment is slowed down or stopped in the consumption zone to ensure dynamic balance of the liquid level. By matching the liquid level zones with the glue replenishment modes, a dynamic balance between glue supply and consumption is achieved. Stable glue replenishment is maintained during normal production, and the glue replenishment mode is quickly adjusted by switching zones when glue consumption increases or decreases, ensuring production continuity.

[0063] In some embodiments, when the first glue replenishment mode is triggered, the glue replenishment speed is N times the preset speed, where the value of N is greater than 1.

[0064] Wherein, N is the multiple of the glue replenishing speed relative to the preset speed. Specifically, it can be achieved by adjusting the power of the glue replenishing pump or the valve opening ratio. This multiple is used to quickly increase the glue replenishing speed when the glue level is in the liquid replenishment range, so as to shorten the time for the liquid level to return to the normal range.

[0065] When the level detection device detects that the adhesive level is within the replenishment range, the current replenishment speed is switched to N times the preset speed. The value of N can be a fixed preset value, such as 2 times or 3 times, or it can be a variable dynamically adjusted based on the adhesive consumption rate. For example, when the maximum adhesive consumption rate increases, the value of N can increase accordingly, ensuring that the replenishment speed matches the fluctuation range of the consumption rate. By establishing a multiple relationship between the replenishment speed and the preset speed, an accelerated replenishment mechanism can be actively triggered when the liquid level is below the normal range, preventing the liquid level from continuously dropping to the consumption range due to insufficient replenishment speed.

[0066] This application automatically triggers the first glue replenishment mode with accelerated replenishment when the liquid level enters the replenishment zone by using a preset speed multiplier, ensuring a dynamic balance between the glue replenishment speed and the consumption rate. This application can significantly improve glue replenishment efficiency when the glue level is in the replenishment zone, shorten the time required for the liquid level to return to the normal range, and thus maintain the stability of the glue supply.

[0067] Of course, in some other embodiments, when the third glue replenishment mode is triggered, the current glue replenishment speed is switched to M times the preset speed, where the value of M is less than 1.

[0068] M refers to the ratio of the glue replenishment speed to the preset speed. This can be achieved by adjusting the power of the glue replenishment pump or the opening ratio of the valve. This ratio is used in the third glue replenishment mode to quickly reduce the speed and shorten the time for the liquid level to return to the normal range.

[0069] When the third glue replenishment mode is triggered, the glue replenishment speed is M times the preset speed. The value of M can be a preset fixed value, such as 0.5 times, 0.2 times, or 0 times, or it can be a variable dynamically adjusted based on the glue consumption rate. By establishing a multiple relationship between the glue replenishment speed and the preset speed, the glue replenishment speed can be quickly reduced in the third glue replenishment mode to prevent glue overflow due to excessively fast replenishment.

[0070] In some embodiments, the liquid level threshold in the liquid addition zone is less than a first preset proportion of the volume of the adhesive container; the liquid level threshold in the consumption zone is greater than a second preset proportion of the volume of the adhesive container; the liquid level threshold in the normal zone is greater than that in the liquid addition zone and less than that in the consumption zone, and the first preset proportion is less than the second preset proportion.

[0071] The first preset ratio refers to the ratio of the upper limit of the liquid level in the filling zone to the total volume of the container. For example, when the total height of the container is 1 meter, the position corresponding to the first preset ratio could be 0.3 meters. The second preset ratio refers to the ratio of the lower limit of the liquid level in the consumption zone to the total volume of the container. For example, when the total height of the container is 1 meter, the position corresponding to the second preset ratio could be 0.7 meters. The liquid level threshold of the normal zone refers to the liquid level range located between the filling zone and the consumption zone.

[0072] Specifically, the total volume of the adhesive container is divided into three intervals. When the adhesive level is in the replenishment interval, the level threshold is set to 30% of the container volume. At this point, the level is low, and replenishment needs to be accelerated. When the adhesive level is in the consumption interval, the level threshold is set to 70% of the container volume. At this point, the level is high, and the replenishment speed needs to be reduced or replenishment needs to be paused. The normal interval is between 30% and 70% of the liquid level, and the replenishment speed is consistent with the consumption speed. Of course, in other embodiments, the first preset ratio and the second preset ratio can be other values, as long as the first preset ratio is less than the second preset ratio.

[0073] Liquid level detection can be achieved using two liquid level sensors, designated as the first and second liquid level sensors. The first liquid level sensor is installed at the upper limit of the liquid level in the filling section of the container, and the second liquid level sensor is installed at the lower limit of the liquid level in the consumption section. When neither the first nor the second liquid level sensor detects any adhesive, the adhesive level is below the first liquid level sensor, meaning it is in the filling section. When the first liquid level sensor detects adhesive but the second liquid level sensor does not, the adhesive level is above the first liquid level sensor and below the second liquid level sensor, meaning it is in the normal range. When both the first and second liquid level sensors detect adhesive, the adhesive level is above the second liquid level sensor, meaning it is in the consumption range.

[0074] This application ensures that the glue replenishment mode switching has clear triggering conditions. When the glue level is below a first preset ratio, the first glue replenishment mode of rapid glue replenishment is immediately activated to avoid glue interruption on the production line due to glue replenishment delays; when the level is above a second preset ratio, the third glue replenishment mode of reduced glue replenishment is triggered to prevent glue overflow. Maintaining a dynamic balance between glue replenishment speed and consumption speed within the normal range makes the glue supply process more stable and controllable.

[0075] In some embodiments, when the number of times the adhesive level is continuously in the addition zone exceeds a preset number, the adhesive replenishment speed decreases according to a first preset algorithm; when the number of times the adhesive level is continuously in the consumption zone exceeds a preset number, the adhesive replenishment speed increases according to a second preset algorithm.

[0076] The first preset algorithm is a decreasing function based on the initial glue replenishment speed, which mitigates abnormal liquid level caused by excessive glue replenishment by gradually reducing the glue replenishment speed. The second preset algorithm is an increasing function based on the initial glue replenishment speed, which responds to emergency situations where the liquid level continues to drop by gradually increasing the glue replenishment speed.

[0077] The preset number of times refers to the critical value for triggering speed adjustment. In actual operation, this can be achieved by setting a preset height threshold for the liquid level changes. The preset height threshold can be 1%-5% of the container height. For example, for a 1-meter-high container, the preset height threshold could be 1cm, 2cm, 3cm, etc. When the liquid level is in the consumption range, if the liquid level rises by one preset height threshold, the number of times the adhesive level is continuously in the consumption range is counted as one. If the increase in liquid level is less than the preset height threshold, the number of times the adhesive level is continuously in the consumption range is zero. If the increase in liquid level is less than two preset height thresholds but greater than one preset height threshold, the number of times the adhesive level is continuously in the consumption range is counted as one. When the liquid level is in the filling range, if the liquid level falls by one preset height threshold, the number of times the adhesive level is continuously in the filling range is counted as one. If the decrease in liquid level is less than the preset height threshold, the number of times the adhesive level is continuously in the filling range is zero. If the decrease in liquid level is less than two preset height thresholds but greater than one preset height threshold, the number of times the adhesive level is continuously in the filling range is counted as one.

[0078] Specifically, when the level sensor detects that the adhesive level remains within the filling range, the counter begins to accumulate consecutive counts. When the accumulated value exceeds a preset number, the first preset algorithm is activated, gradually increasing the current adhesive filling speed exponentially. If the liquid level leaves the filling range during the adjustment process, the counter is immediately reset to zero. Similarly, when the liquid level remains within the consumption range, the second preset algorithm adjusts the speed in the opposite direction, gradually decreasing the adhesive filling speed.

[0079] This application can identify the continuous stagnation of adhesive level in the filling or consumption range and dynamically adjust the replenishment speed to avoid supply and consumption imbalances caused by prolonged abnormal levels. When the filling level remains low, gradually increasing the replenishment speed can promptly fill the consumption gap; when the consumption level remains high, gradually decreasing the replenishment speed prevents the risk of overflow due to excessive replenishment. By using an algorithm to adjust the speed instead of manual operation based on experience, the replenishment speed adaptively changes with abnormal levels, enhancing the system's response accuracy to complex operating conditions.

[0080] In one embodiment, when the first glue replenishment mode is triggered, the glue replenishment speed is immediately switched to N times the preset speed. If the number of times the glue level is continuously in the liquid addition zone does not exceed the preset number in the first glue replenishment mode, the glue replenishment speed is maintained at N times the preset speed. If the number of times the glue level is continuously in the liquid addition zone exceeds the preset number in the first glue replenishment mode, the glue replenishment speed is dynamically switched in real time according to the first preset algorithm based on the current glue replenishment speed, wherein the current glue replenishment speed is the glue replenishment speed before the number of times the glue level is continuously in the liquid addition zone increases.

[0081] When the second glue replenishment mode is triggered, the glue replenishment speed immediately switches to M times the preset speed. If the number of times the glue level is continuously in the liquid replenishment zone does not exceed the preset number in the second glue replenishment mode, the glue replenishment speed is maintained at M times the preset speed. If the number of times the glue level is continuously in the liquid replenishment zone exceeds the preset number in the second glue replenishment mode, the glue replenishment speed is dynamically switched in real time according to the second preset algorithm and based on the current glue replenishment speed, where the current glue replenishment speed is the glue replenishment speed before the number of times the glue level is continuously in the liquid replenishment zone increases.

[0082] In some embodiments, the first preset algorithm is v = (1 - a * b) x The second preset algorithm is v = (1 + a * b) * v1, where v = (1 + a * b) * v1. x )*v1. Where v is the glue replenishment speed, a is the first preset coefficient, b is the second preset coefficient and the value of b is greater than 1, x is the number of times the glue level is continuously in the liquid replenishment interval or continuously in the liquid consumption interval, v1 is the glue replenishment speed before the value of x increases. When the state of the glue level continuously in the liquid replenishment interval or the liquid consumption interval is interrupted, x is reset to 0.

[0083] The first preset coefficient 'a' controls the adjustment range of the glue application speed, and can be a value between 0.01 and 0.2. The second preset coefficient 'b' is used to accelerate the adjustment process, and can be a value greater than 1, such as 1.5, 2, or 3. 'x' refers to the number of times the liquid level sensor continuously detects that the liquid level is within the same range; it automatically resets to zero when the liquid level crosses the range boundary.

[0084] In one embodiment, when the value of x is n, the glue application speed is v. n When the value of x increases from n to n+1, if the adhesive is in the addition range, the adhesive replenishment speed v n = (1+a*b) n+1 )*v n If the adhesive is in the consumption range, the replenishment rate is v. n =(1-a*b) n+1 )*v n .

[0085] This application can automatically adjust the glue replenishment speed according to abnormal liquid level conditions, achieving precise matching between glue replenishment speed and liquid level status.

[0086] In some embodiments, the liquid level threshold of the liquid level range is determined by at least one of the volume of the adhesive container and the adhesive consumption rate.

[0087] The liquid level threshold refers to the critical liquid level value that triggers the switching of the glue replenishment mode, and the glue consumption rate refers to the amount of glue used per unit time, which can be obtained through flow meter or historical consumption data statistics. This ensures the accuracy and stability of the glue replenishment operation under different container sizes and consumption rate scenarios.

[0088] This application also provides a glue filling system for implementing a glue filling method, including a glue storage device, a liquid level detection device, a glue filling pipeline, and a control module.

[0089] The adhesive storage device is used to hold adhesive and is divided into different liquid level zones. For example, the liquid addition zone, normal zone and consumption zone can be divided by height marks or sensor positions. Specifically, it can be implemented by a storage tank with scale markings or a container with multiple liquid level sensors.

[0090] The liquid level detection device is installed in the adhesive storage container to detect the liquid level of the adhesive and output a liquid level signal. The liquid level signal includes the liquid level range corresponding to the liquid level. The liquid level detection device can be a float sensor, a capacitive sensor, or an ultrasonic sensor, etc. Two sensors can be set at the boundary between the liquid addition range and the normal range, and the boundary between the normal range and the consumption range, respectively. The liquid level detection device is used to convert the liquid level signal into an electrical signal to provide real-time data.

[0091] The glue filling pipeline is connected to the glue storage tank and is used to perform glue filling operations. It can be a pipeline system with a solenoid valve. Specifically, the glue filling speed can be controlled by adjusting the valve opening or the pumping power, so as to accurately realize the glue filling action.

[0092] The control module is electrically connected to the liquid level detection device. It is used to switch to the glue replenishment mode according to the liquid level signal and replenish the glue to the glue storage tank through the glue replenishment pipeline, so that the glue replenishment speed is dynamically balanced based on the preset speed and the consumption speed.

[0093] The adhesive storage unit is internally divided into a filling zone, a normal zone, and a consumption zone. When the level detection device detects that the adhesive level is in the filling zone, the control module triggers a high-speed first replenishment mode, for example, by increasing the opening of the solenoid valve or increasing the pumping power, to accelerate the replenishment speed above the preset speed. When the level enters the normal zone, the control module switches to the second replenishment mode, with the replenishment speed matching the preset speed to maintain supply and demand balance. If the level rises to the consumption zone, the control module triggers a third replenishment mode or pauses the replenishment mode, for example, by reducing the valve opening or stopping the pumping, to avoid over-replenishment. The preset speed is dynamically set based on the maximum adhesive consumption rate, for example, by statistical analysis of historical data or real-time detection of the consumption rate. The control module continuously receives level signals and adjusts the replenishment mode, forming a feedback loop that ensures the replenishment speed always follows the consumption rate, achieving dynamic balance.

[0094] The glue replenishment system of this application obtains the liquid level status in real time through a liquid level detection device and automatically switches the glue replenishment mode through a control module, eliminating the error of human experience judgment and avoiding the risk of glue breakage or overflow caused by excessive liquid level fluctuations.

[0095] In some embodiments, the liquid level detection device includes at least two liquid level sensors that are electrically connected to the control module. The two liquid level sensors are located at a first position and a second position in the adhesive storage container. The first position is the boundary between the liquid addition range and the normal range, and the second position is the boundary between the normal range and the consumption range. The two liquid level sensors are used to output liquid level signals.

[0096] The "addition zone" refers to the area where the adhesive level is below the lower limit of the normal zone. This can be achieved by installing a level sensor at a certain height above the bottom of the adhesive container, triggering a high-speed adhesive replenishment mode. The "normal zone" refers to the area where the adhesive level is within a preset working range, defined by the vertical distance between two level sensors. The "consumption zone" refers to the area where the adhesive level is above the upper limit of the normal zone, achieved by installing a level sensor at the top, triggering a deceleration-based third adhesive replenishment mode or a pause in the replenishment process. The level sensor is a device used to detect the adhesive level, and can be a float sensor, capacitive sensor, or ultrasonic sensor, reflecting the level status by outputting an electrical signal. The first and second positions correspond to the boundary points of different level zones, and can be set according to the volume ratio of the adhesive container or actual process requirements. For example, the first position could be set at 30% of the container height, and the second position at 70% of the container height.

[0097] Specifically, when the adhesive level drops to the first position, the level sensor at that position detects that the level is below the normal range, triggering the control module to switch to the adhesive replenishment mode in the replenishment zone. At this time, the replenishment speed is higher than the preset speed. When the level rises to the second position, the top level sensor detects that the level exceeds the upper limit of the normal range, and the control module switches to the third adhesive replenishment mode in the consumption zone or pauses the replenishment mode. If the level is higher than the first position but lower than the second position, it is determined that the adhesive is in the normal range, and the second adhesive replenishment mode maintains the preset speed. By setting two level sensors, it is possible to accurately distinguish whether the level is in the replenishment zone, the normal zone, or the consumption zone, ensuring the timeliness and accuracy of the adhesive replenishment mode switching and effectively maintaining the dynamic balance between adhesive supply and consumption.

[0098] When the glue level in the glue reservoir changes from the normal range to the filling range, the level detection device detects the level signal and transmits it to the control module. The control module then switches the glue filling mode to the first glue filling mode, enabling the glue filling pipeline to quickly fill the glue. At this time, the glue filling speed is higher than the preset speed, accelerating the replenishment of glue into the glue reservoir.

[0099] When the glue level in the glue reservoir changes from the filling zone to the normal zone, the level detection device detects the level signal and transmits it to the control module. The control module then switches the glue replenishment mode to the second glue replenishment mode, allowing the glue replenishment pipeline to perform normal glue replenishment. At this time, the glue replenishment speed is the same as the preset speed, maintaining the glue level in the glue reservoir.

[0100] When the glue level in the glue reservoir changes from the normal range to the consumption range, the level detection device detects the level signal and transmits it to the control module. The control module then switches the glue replenishment mode to the third glue replenishment mode, which slows down or stops the glue replenishment process. When the glue replenishment is slowed down, the glue replenishment speed is less than the preset speed. When the glue replenishment is stopped, the glue replenishment speed is 0, so as to reduce or stop the replenishment of glue into the glue reservoir.

[0101] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Accordingly, each module / unit in the above embodiments can be implemented in hardware or as a software functional module. This invention is not limited to any particular combination of hardware and software.

[0102] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0103] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A method for applying adhesive, characterized in that, include: Determine the preset speed for glue replenishment based on the glue consumption rate; Based on the liquid level range of the adhesive, the glue replenishment mode for replenishing the adhesive in the adhesive container is switched so that the glue replenishment speed in the glue replenishment mode is dynamically balanced with the adhesive consumption rate based on the preset speed. Herein, multiple different liquid level ranges are preset in the adhesive container.

2. The glue-applying method according to claim 1, characterized in that, The step of determining the preset speed based on the adhesive consumption rate includes: The preset speed is linearly positively correlated with the maximum value of the adhesive consumption rate.

3. The glue-applying method according to claim 1, characterized in that, The liquid level range includes a liquid addition range, a normal range, and a consumption range, which are respectively set from bottom to top along the direction of gravity. The glue application mode includes a first glue application mode, a second glue application mode, and a third glue application mode; The method of switching the glue replenishment mode to replenish glue into the glue container based on the glue level range includes: When the adhesive liquid level is in the liquid addition range, the adhesive replenishment mode is the first adhesive replenishment mode, and in the first adhesive replenishment mode, the adhesive replenishment speed is higher than the preset speed; When the adhesive level is within the normal range, the adhesive replenishment mode is the second adhesive replenishment mode, and in the second adhesive replenishment mode, the adhesive replenishment speed is the same as the preset speed; When the adhesive liquid level is in the consumption range, the adhesive replenishment mode is the third adhesive replenishment mode, and in the third adhesive replenishment mode, the adhesive replenishment speed is lower than the preset speed.

4. The glue-applying method according to claim 3, characterized in that, When the first glue replenishment mode is triggered, the glue replenishment speed is N times the preset speed, where the value of N is greater than 1; When the third glue replenishment mode is triggered, the glue replenishment speed is M times the preset speed, where the value of M is less than 1.

5. The glue-applying method according to claim 3, characterized in that, The liquid level threshold of the liquid addition zone is less than a first preset ratio of the volume of the adhesive container; The liquid level threshold of the consumption range is greater than a second preset ratio of the volume of the adhesive container; The liquid level threshold in the normal range is greater than that in the liquid addition range and less than that in the consumption range, and the first preset ratio is less than the second preset ratio.

6. The glue-applying method according to claim 3, characterized in that, When the number of times the adhesive liquid level is continuously in the liquid addition range exceeds a preset number, the adhesive replenishment speed decreases according to a first preset algorithm; When the number of times the adhesive liquid level is continuously in the consumption range exceeds the preset number, the adhesive replenishment speed increases according to the second preset algorithm.

7. The glue-applying method according to claim 6, characterized in that, The first preset algorithm is: v = (1 - a * b) x )*v1; The second preset algorithm is: v = (1 + a * b) x )*v1; Where v is the glue replenishment speed, a is the first preset coefficient, b is the second preset coefficient and the value of b is greater than 1, x is the number of times the glue liquid level is continuously in the liquid addition interval or continuously in the consumption interval, and v1 is the glue replenishment speed before the value of x increases. When the state of the adhesive liquid level continuously being in the liquid addition interval or continuously being in the consumption interval is interrupted, x is reset to 0.

8. The glue-applying method according to claim 1, characterized in that, The liquid level threshold of the liquid level range is determined by at least one of the volume of the adhesive container and the adhesive consumption rate.

9. A glue-applying system, characterized in that, For implementing the adhesive application method as described in any one of claims 1 to 8, the adhesive application system comprises: A liquid storage device for containing the liquid adhesive, wherein the liquid storage device is divided into different liquid level zones; A liquid level detection device is disposed in the adhesive storage container. The liquid level detection device is used to detect the liquid level of the adhesive in the adhesive storage container and output a liquid level signal. The liquid level signal includes the liquid level range corresponding to the liquid level of the adhesive. A glue filling line is connected to the glue storage device, and the glue filling line is used for glue filling. The control module is electrically connected to the liquid level detection device and is used to switch to the corresponding glue replenishment mode according to the liquid level signal, and to replenish the glue to the glue storage through the glue replenishment pipeline, so that the glue replenishment speed is dynamically balanced based on the preset speed and the consumption speed.

10. The glue-applying system according to claim 9, characterized in that, The liquid level range includes a liquid addition range, a normal range, and a consumption range; The liquid level detection device includes at least two liquid level sensors that are electrically connected to the control module. The two liquid level sensors are located at a first position and a second position in the adhesive storage device. The first position is the boundary between the liquid addition range and the normal range, and the second position is the boundary between the normal range and the consumption range. The two liquid level sensors are used to output the liquid level signal.

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