Glue dispensing device and method

Abstract

This invention discloses a dispensing device and method thereof, relating to the field of battery manufacturing technology. The dispensing device includes a drive motor, a stirring rod, a mixing cylinder, a temperature control cylinder, a heat exchange mechanism, a first temperature sensor, and a controller. The stirring rod is rotatably disposed inside the mixing cylinder and connected to the drive motor. The mixing cylinder has an inlet and an outlet opposite to each other. The temperature control cylinder is sleeved outside the mixing cylinder, with its inner diameter larger than the outer diameter of the mixing cylinder. A heat exchange cavity is formed between the temperature control cylinder and the mixing cylinder. The heat exchange mechanism communicates with the heat exchange cavity and is electrically connected to the controller. The first temperature sensor is installed at the outlet and is electrically connected to the controller. Compared with the prior art, the dispensing device provided by this invention, due to the use of a temperature control cylinder sleeved outside the mixing cylinder and a heat exchange mechanism communicating with the heat exchange cavity, can achieve precise control of the dispensing temperature, ensuring foaming effect, avoiding premature foaming or quality defects, and improving product yield.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing technology, and more specifically, to a glue dispensing device and a glue dispensing method thereof. Background Technology

[0002] The power battery pack is one of the key components of new energy vehicles. Applying expanding foam to the battery pack body is a crucial manufacturing process, as its performance directly affects the overall sealing performance of the pack. Defects (such as dimensional inconsistencies, surface and internal pores, delamination, uneven foaming, etc.) can lead to insufficient compression ratio, water ingress, insulation failure, and even serious accidents like fires. Current CIPG (Cured In Place Gasket) adhesives are generally made by mixing expanding foam and catalyst. During this process, CIPG adhesive is highly temperature-sensitive. High temperatures can cause premature foaming, leading to bonding failure, while low temperatures can result in excessively hard adhesive, uneven foaming, and insufficient resilience.

[0003] Therefore, designing and manufacturing a dispensing device and method with good temperature control and high dispensing quality is particularly important in battery production. Summary of the Invention

[0004] The purpose of this invention is to provide a dispensing device that can achieve precise control of dispensing temperature, ensure foaming effect, avoid premature foaming or quality defects, and improve product yield.

[0005] Another objective of this invention is to provide a dispensing method that enables precise control of dispensing temperature, ensures foaming effect, avoids premature foaming or quality defects, and improves product yield.

[0006] The present invention is achieved by the following technical solution.

[0007] A glue dispensing device includes a drive motor, a stirring rod, a mixing cylinder, a temperature control cylinder, a heat exchange mechanism, a first temperature sensor, and a controller. The stirring rod is rotatably disposed inside the mixing cylinder and connected to the drive motor. The mixing cylinder is provided with a glue inlet and a glue outlet. The glue inlet is used to allow a first raw material and a second raw material to pass in. The drive motor is used to drive the stirring rod to rotate so that the first raw material and the second raw material are mixed and foamed and then discharged from the glue outlet. The temperature control cylinder is sleeved outside the mixing cylinder, and the inner diameter of the temperature control cylinder is larger than the outer diameter of the mixing cylinder. A heat exchange cavity is formed between the temperature control cylinder and the mixing cylinder. The heat exchange mechanism is connected to the heat exchange cavity and electrically connected to the controller. The heat exchange mechanism is used to introduce heat exchange medium into the heat exchange cavity. The first temperature sensor is installed at the dispensing port and is electrically connected to the controller. The controller is used to regulate the temperature of the heat exchange medium output by the heat exchange mechanism according to the dispensing temperature detected by the first temperature sensor, so that the dispensing temperature is within the preset temperature range.

[0008] Optionally, the stirring rod includes a rod body and helical blades, the helical blades being helically arranged on the circumference of the rod body, and the drive motor having an output shaft, the output shaft being coaxially arranged with and connected to the rod body.

[0009] Optionally, the heat exchange mechanism includes a liquid storage tank, an inlet pipe, an outlet pipe, and a temperature control device. The temperature control device is installed inside the liquid storage tank and is used to heat or cool the heat exchange medium inside the liquid storage tank. The inlet pipe and the outlet pipe are spaced apart and are both connected between the liquid storage tank and the heat exchange cavity.

[0010] Optionally, a spiral flow channel is provided inside the heat exchange cavity to guide the heat exchange medium.

[0011] Optionally, the dispensing device further includes a first dispensing pipe and a second dispensing pipe. The first dispensing pipe is connected to the dispensing port and is equipped with a first switching valve. The second dispensing pipe is connected to the dispensing port and is equipped with a second switching valve. The first dispensing pipe and the second dispensing pipe are arranged opposite to each other on both sides of the dispensing port.

[0012] Optionally, the dispensing device also includes a second temperature sensor, which is installed in the heat exchange cavity and electrically connected to the controller. The controller is used to control the heat exchange mechanism to keep the heat exchange medium warm after the second temperature sensor detects that the temperature of the heat exchange medium has reached the target temperature.

[0013] Optionally, the dispensing device also includes a robotic arm, which includes a mounting base, a drive motor, and a temperature control cylinder, all mounted on the mounting base.

[0014] A glue dispensing method, applied to the aforementioned glue dispensing device, the glue dispensing method comprising: The first and second raw materials are fed into the glue inlet in a preset ratio; A drive motor is used to rotate the stirring rod so that the first and second raw materials are mixed and foamed before being discharged from the outlet. The dispensing temperature is detected by a first temperature sensor, and then the controller adjusts the temperature of the heat exchange medium output by the heat exchange mechanism according to the dispensing temperature so that the dispensing temperature is within the preset temperature range.

[0015] Optionally, the dispensing device further includes a second temperature sensor, which is installed in the heat exchange cavity and electrically connected to the controller; The steps of using a controller to regulate the temperature of the heat exchange medium output by the heat exchange mechanism according to the dispensing temperature, so as to keep the dispensing temperature within a preset temperature range, include: The temperature of the heat exchange medium in the heat exchange cavity is detected by a second temperature sensor. When the temperature of the heat exchange medium reaches the target temperature, the controller controls the heat exchange mechanism to keep the heat exchange medium warm.

[0016] Optionally, the dispensing device also includes a robotic arm, which is equipped with a mounting base, and the drive motor and temperature control cylinder are both mounted on the mounting base; Other glue dispensing methods include: The robotic arm synchronously drives the drive motor and temperature control cylinder to move until the glue outlet is above the glue application position.

[0017] The adhesive dispensing device and dispensing method provided by this invention have the following beneficial effects: The dispensing device provided by this invention has a stirring rod rotatably disposed inside a mixing cylinder and connected to a drive motor. The mixing cylinder has an inlet and an outlet opposite to each other. The inlet is used to allow the first and second raw materials to enter. The drive motor is used to drive the stirring rod to rotate so that the first and second raw materials are mixed and foamed and then discharged from the outlet. A temperature control cylinder is sleeved outside the mixing cylinder, and the inner diameter of the temperature control cylinder is larger than the outer diameter of the mixing cylinder. A heat exchange cavity is formed between the temperature control cylinder and the mixing cylinder. A heat exchange mechanism is connected to the heat exchange cavity and electrically connected to a controller. The heat exchange mechanism is used to introduce a heat exchange medium into the heat exchange cavity. A first temperature sensor is installed at the outlet and electrically connected to the controller. The controller is used to regulate the temperature of the heat exchange medium output by the heat exchange mechanism according to the dispensing temperature detected by the first temperature sensor so that the dispensing temperature is within a preset temperature range. Compared with the prior art, the dispensing device provided by the present invention can achieve precise control of dispensing temperature by using a temperature control cylinder sleeved outside the mixing cylinder and a heat exchange mechanism connected to the heat exchange cavity, thus ensuring foaming effect, avoiding premature foaming or quality defects, and improving product yield.

[0018] The dispensing method provided by this invention, applied to a dispensing device, can achieve precise control of dispensing temperature, ensure foaming effect, avoid premature foaming or quality defects, and improve product yield. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the adhesive dispensing device provided in an embodiment of the present invention; Figure 2 This is a structural block diagram of the glue dispensing device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the connection between the temperature control cylinder and the heat exchange mechanism in the dispensing device provided in an embodiment of the present invention. Figure 4 This is a schematic diagram of the assembled structure of the stirring rod, mixing cylinder, and temperature control cylinder in the dispensing device provided in an embodiment of the present invention. Figure 5 This is a schematic diagram of the structure of the stirring rod in the dispensing device provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the temperature control cylinder in the dispensing device provided in an embodiment of the present invention; Figure 7 This is a flowchart illustrating the steps of the dispensing method provided in an embodiment of the present invention.

[0021] Icons: 100-Dispensing device; 110-Drive motor; 111-Output shaft; 120-Stirring rod; 121-Rod body; 122-Helical blade; 130-Mixing cylinder; 131-Dispensing port; 132-Dispensing port; 140-Temperature control cylinder; 150-Heat exchange mechanism; 151-Liquid storage tank; 152-Liquid inlet pipe; 153-Liquid outlet pipe; 154-Temperature control device; 160-First temperature sensor; 170-Controller; 180-Heat exchange cavity; 181-Helical flow channel; 190-First dispensing pipe; 191-First switching valve; 200-Second dispensing pipe; 201-Second switching valve; 210-Second temperature sensor; 220-Robotic arm; 221-Mounting base. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this invention, it should be noted that the terms "inner," "outer," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, features in the following embodiments can be combined with each other.

[0028] Please refer to the reference. Figures 1 to 6 This invention provides a dispensing device 100 for foaming and dispensing CIPG adhesive. It enables precise control of the dispensing temperature, ensuring effective foaming, preventing premature foaming or quality defects, and improving product yield.

[0029] The dispensing device 100 includes a drive motor 110, a stirring rod 120, a mixing cylinder 130, a temperature control cylinder 140, a heat exchange mechanism 150, a first temperature sensor 160, and a controller 170. The stirring rod 120 is rotatably disposed inside the mixing cylinder 130 and is connected to the drive motor 110, which drives the stirring rod 120 to rotate relative to the mixing cylinder 130. The mixing cylinder 130 is provided with an inlet 131 and an outlet 132. The inlet 131 is used to allow the first and second raw materials to enter. The drive motor 110 is used to drive the stirring rod 120 to rotate so that the first and second raw materials are mixed and foamed and then discharged from the outlet 132. During this process, the stirring rod 120 can stir the first and second raw materials to make them mix evenly and achieve the foaming function. On the other hand, it can drive the mixed first and second raw materials to move along the direction from the inlet 131 to the outlet 132 until they are discharged from the outlet 132 to achieve the dispensing function.

[0030] Furthermore, a temperature control cylinder 140 is sleeved outside the mixing cylinder 130, and the inner diameter of the temperature control cylinder 140 is larger than the outer diameter of the mixing cylinder 130. A heat exchange cavity 180 is formed between the temperature control cylinder 140 and the mixing cylinder 130. The heat exchange cavity 180 is used to allow the heat exchange medium to pass through, thereby achieving temperature control of the mixing cylinder 130. The heat exchange mechanism 150 is connected to the heat exchange cavity 180 and electrically connected to the controller 170. The heat exchange mechanism 150 is used to introduce the heat exchange medium into the heat exchange cavity 180. A first temperature sensor 160 is installed at the dispensing port 132 and electrically connected to the controller 170. The controller 170 is used to regulate the temperature of the heat exchange medium output by the heat exchange mechanism 150 according to the dispensing temperature detected by the first temperature sensor 160, so that the dispensing temperature is within a preset temperature range. This allows for precise control of the dispensing temperature, preventing it from being too high or too low, ensuring effective foaming, avoiding premature foaming or quality defects, and improving product yield.

[0031] In this embodiment, the first raw material is a foaming adhesive and the second raw material is a catalyst adhesive. However, it is not limited to this; in other embodiments, the first and second raw materials can be other materials.

[0032] The stirring rod 120 includes a rod body 121 and a spiral blade 122. The spiral blade 122 is spirally arranged on the circumferential surface of the rod body 121 and fixedly connected to the rod body 121. The drive motor 110 is provided with an output shaft 111, which is coaxially arranged with and connected to the rod body 121. Specifically, when the drive motor 110 starts, the output shaft 111 drives the rod body 121 to rotate, thereby driving the spiral blade 122 to rotate. The spiral blade 122 is used to stir and mix the first and second raw materials during rotation and drive them to be discharged from the dispensing port 132.

[0033] The heat exchange mechanism 150 includes a liquid storage tank 151, an inlet pipe 152, an outlet pipe 153, and a temperature control device 154. The temperature control device 154 is installed inside the liquid storage tank 151 and is used to heat or cool the heat exchange medium inside the liquid storage tank 151 to regulate its temperature. The inlet pipe 152 and the outlet pipe 153 are spaced apart and both connect the liquid storage tank 151 and the heat exchange cavity 180. The heat exchange medium in the liquid storage tank 151 can flow into the heat exchange cavity 180 through the inlet pipe 152 to regulate the temperature of the mixing cylinder 130, ensuring that the outlet temperature is within a preset temperature range. The heat exchange medium that has completed heat exchange in the heat exchange cavity 180 can flow back to the liquid storage tank 151 through the outlet pipe 153 for reheating or cooling by the temperature control device 154, thus achieving the recycling of the heat exchange medium.

[0034] In this embodiment, the temperature control device 154 is a semiconductor heat exchanger and the heat exchange medium is water, but it is not limited to this. In other embodiments, the temperature control device 154 can be a thermoelectric module and the heat exchange medium can be oil. The type of temperature control device 154 and the heat exchange medium are not specifically limited.

[0035] In this embodiment, a spiral flow channel 181 is provided inside the heat exchange cavity 180. The spiral flow channel 181 is used to guide the heat exchange medium. The spiral flow channel 181 is connected to both the inlet pipe 152 and the outlet pipe 153. The heat exchange medium flowing into the heat exchange cavity 180 from the inlet pipe 152 can flow spirally along the spiral flow channel 181 and finally be discharged from the outlet pipe 153. The spiral flow channel 181 is used to increase the contact area between the heat exchange medium and the mixing cylinder 130 and improve the flow effect of the heat exchange medium, avoid turbulence of the heat exchange medium, and thus improve the heat exchange effect.

[0036] The dispensing device 100 also includes a first glue bin (not shown), a second glue bin (not shown), a first glue inlet pipe 190, and a second glue inlet pipe 200. The first glue bin is connected to the glue inlet 131 via the first glue inlet pipe 190. The first glue inlet pipe 190 is equipped with a first switching valve 191. The first glue bin stores a first raw material, which can flow into the glue inlet 131 through the first glue inlet pipe 190. The first switching valve 191 is used to open or close the first glue inlet pipe 190 to allow or halt the flow of the first raw material. The second glue bin is connected to the glue inlet 131 via the second glue inlet pipe 200. The second glue inlet pipe 200 is equipped with a second switching valve 201. The second glue bin stores a second raw material, which can flow into the glue inlet 131 through the second glue inlet pipe 200. The second switching valve 201 is used to open or close the second glue inlet pipe 200 to allow or halt the flow of the second raw material. Specifically, the first glue tube 190 and the second glue tube 200 are arranged opposite each other on both sides of the glue inlet 131 to prevent the first material and the second material from interfering with each other and to ensure the glue injection effect.

[0037] Optionally, the dispensing device 100 also includes a second temperature sensor 210. The second temperature sensor 210 is installed in the heat exchange cavity 180 and is electrically connected to the controller 170. The controller 170 is used to control the heat exchange mechanism 150 to keep the heat exchange medium at the target temperature after the second temperature sensor 210 detects that the temperature of the heat exchange medium has reached the target temperature, so as to keep the heat exchange medium at the target temperature.

[0038] In this embodiment, the first temperature sensor 160 is used to detect the dispensing temperature of CIPG glue in the dispensing port 132 of the mixing cylinder 130, and the second temperature sensor 210 is used to detect the real-time temperature of the heat exchange medium in the heat exchange cavity 180. The first temperature sensor 160 and the second temperature sensor 210 work together to achieve closed-loop temperature control. Combined with the PID algorithm of the controller 170, the heating power is dynamically adjusted to ensure that the internal temperature fluctuation range of the mixing cylinder 130 is ≤1℃. In this way, the dispensing device 100 also has a fault tolerance mechanism. When one of the first temperature sensor 160 and the second temperature sensor 210 fails, the system can still maintain stable operation by relying on the temperature data sensed by the other, which is safe and reliable.

[0039] In this embodiment, both the first temperature sensor 160 and the second temperature sensor 210 are thermistors, but they are not limited to this. In other embodiments, both the first temperature sensor 160 and the second temperature sensor 210 can be infrared sensors or thermocouples. The types of the first temperature sensor 160 and the second temperature sensor 210 are not specifically limited.

[0040] Optionally, the dispensing device 100 also includes a robotic arm 220. The robotic arm 220 includes a mounting base 221, on which the drive motor 110 and the temperature control cylinder 140 are mounted. The robotic arm 220 is used to drive the drive motor 110 and the temperature control cylinder 140 to move via the mounting base 221, thereby driving the stirring rod 120, the mixing cylinder 130 and the first temperature sensor 160 to move, thereby adjusting the position of the dispensing port 132 of the mixing cylinder 130 to facilitate the application of adhesive to the battery pack casing.

[0041] Please refer to Figure 7 This invention also provides a glue dispensing method applied to the glue dispensing device 100 described above. The glue dispensing method includes the following steps: Step S110: Pass the first raw material and the second raw material into the glue inlet 131 according to the preset ratio.

[0042] It should be noted that in step S110, the first switch valve 191 and the second switch valve 201 are opened so that the first raw material flows from the first glue tank into the glue inlet 131 through the first glue pipe 190, and the second raw material flows from the second glue tank into the glue inlet 131 through the second glue pipe 200. During this process, the flow ratio of the first raw material and the second raw material is controlled by the opening angle of the first switch valve 191 and the second switch valve 201 so that the first raw material and the second raw material are fed into the glue inlet 131 in a preset ratio.

[0043] In this embodiment, the preset ratio is 1:1, that is, the flow rates of the first raw material and the second raw material are the same, but it is not limited to this. In other embodiments, the preset ratio can be 1:2 or 2:1. The preset ratio is not specifically limited.

[0044] Step S120: Use the drive motor 110 to drive the stirring rod 120 to rotate, so that the first raw material and the second raw material are mixed and foamed and discharged from the dispensing port 132.

[0045] It should be noted that in step S120, the drive motor 110 is started, and the stirring rod 120 is driven to rotate through the output shaft 111, thereby driving the first raw material and the second raw material to mix and foam in the mixing cylinder 130, and then driving them to be discharged from the outlet 132. During this process, the first raw material and the second raw material achieve turbulent mixing under the high-speed rotation of the stirring rod 120, avoiding problems such as stratification or unreacted materials, and ensuring the mixing and foaming effect.

[0046] Step S130: The dispensing temperature is detected by the first temperature sensor 160, and then the controller 170 adjusts the temperature of the heat exchange medium output by the heat exchange mechanism 150 according to the dispensing temperature so that the dispensing temperature is within the preset temperature range.

[0047] It should be noted that in step S130, the first temperature sensor 160 is used to detect the dispensing temperature of CIPG glue in the dispensing port 132 of the mixing cylinder 130. If the dispensing temperature is higher than the preset temperature range, the controller 170 controls the temperature control 154 in the heat exchange mechanism 150 to cool down, thereby cooling the heat exchange medium and cooling the mixing cylinder 130 and the CIPG glue inside it, thus lowering the dispensing temperature and bringing it within the preset temperature range. If the dispensing temperature is lower than the preset temperature range, the controller 170 controls the temperature control 154 in the heat exchange mechanism 150 to heat up, thereby heating the heat exchange medium and heating the mixing cylinder 130 and the CIPG glue inside it, thus raising the dispensing temperature and bringing it within the preset temperature range.

[0048] Further, step S130 also includes: using the second temperature sensor 210 to detect the temperature of the heat exchange medium in the heat exchange cavity 180; when the temperature of the heat exchange medium reaches the target temperature, using the controller 170 to control the heat exchange mechanism 150 to keep the heat exchange medium warm. Specifically, the second temperature sensor 210 detects the real-time temperature of the heat exchange medium in the heat exchange cavity 180; if the real-time temperature of the heat exchange medium has not reached the target temperature, the controller 170 controls the temperature control device 154 in the heat exchange mechanism 150 to adjust the temperature (cool down or heat up) until the heat exchange medium reaches the target temperature; if the real-time temperature of the heat exchange medium has reached the target temperature, the controller 170 controls the temperature control device 154 in the heat exchange mechanism 150 to keep the medium warm.

[0049] Step S140: Use the robotic arm 220 to synchronously drive the drive motor 110 and the temperature control cylinder 140 to move until the glue outlet 132 is above the glue application position.

[0050] It should be noted that, while steps S110, S120 and S130 are being performed, or after step S130, the robotic arm 220 synchronously drives the drive motor 110 and the temperature control cylinder 140 to move, so as to adjust the position of the glue outlet 132, so that the glue outlet 132 is located above the glue application position, thereby facilitating the application of glue to the battery pack casing.

[0051] The dispensing device 100 provided in this embodiment of the invention has a stirring rod 120 rotatably disposed inside a mixing cylinder 130 and connected to a drive motor 110. The mixing cylinder 130 has an inlet 131 and an outlet 132 opposite to each other. The inlet 131 is used to allow the first and second raw materials to pass through. The drive motor 110 is used to drive the stirring rod 120 to rotate so that the first and second raw materials are mixed and foamed and then discharged from the outlet 132. A temperature control cylinder 140 is sleeved outside the mixing cylinder 130, and the inner diameter of the temperature control cylinder 140 is larger than the outer diameter of the mixing cylinder 130. A heat exchange cavity 180 is formed between the temperature control cylinder 140 and the mixing cylinder 130. A heat exchange mechanism 150 communicates with the heat exchange cavity 180 and is electrically connected to a controller 170. The heat exchange mechanism 150 is used to introduce a heat exchange medium into the heat exchange cavity 180. A first temperature sensor 160 is installed at the dispensing port 132 and is electrically connected to the controller 170. The controller 170 is used to regulate the temperature of the heat exchange medium output by the heat exchange mechanism 150 based on the dispensing temperature detected by the first temperature sensor 160, so that the dispensing temperature is within a preset temperature range. Compared with the prior art, the dispensing device 100 provided by this invention, due to the use of a temperature control cylinder 140 sleeved outside the mixing cylinder 130 and a heat exchange mechanism 150 communicating with the heat exchange cavity 180, can achieve precise control of the dispensing temperature, ensure foaming effect, avoid premature foaming or quality defects, and improve product yield. This makes the dispensing method simple, the dispensing effect good, and the product quality high.

[0052] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A glue dispensing device, characterized in that, The device includes a drive motor (110), a stirring rod (120), a mixing cylinder (130), a temperature control cylinder (140), a heat exchange mechanism (150), a first temperature sensor (160), and a controller (170). The stirring rod (120) is rotatably disposed inside the mixing cylinder (130) and connected to the drive motor (110). The mixing cylinder (130) is provided with an inlet (131) and an outlet (132). The inlet (131) is used to allow the first and second raw materials to pass through. The drive motor (110) is used to drive the stirring rod (120) to rotate so that the first and second raw materials are mixed and foamed and then discharged from the outlet (132). The temperature control cylinder (140) is sleeved outside the mixing cylinder (130), and the inner diameter of the temperature control cylinder (140) is larger than the outer diameter of the mixing cylinder (130). A heat exchange cavity (180) is formed between the temperature control cylinder (140) and the mixing cylinder (130). The heat exchange mechanism (150) is connected to the heat exchange cavity (180) and electrically connected to the controller (170). The heat exchange mechanism (150) is used to introduce heat exchange medium into the heat exchange cavity (180). The first temperature sensor (160) is installed at the glue outlet (132) and electrically connected to the controller (170). The controller (170) is used to regulate the temperature of the heat exchange medium output by the heat exchange mechanism (150) according to the glue outlet temperature detected by the first temperature sensor (160) so that the glue outlet temperature is within a preset temperature range.

2. The glue dispensing device according to claim 1, characterized in that, The stirring rod (120) includes a rod body (121) and a spiral blade (122). The spiral blade (122) is spirally arranged on the circumferential surface of the rod body (121). The drive motor (110) is provided with an output shaft (111). The output shaft (111) is coaxially arranged with the rod body (121) and connected to each other.

3. The glue dispensing device according to claim 1, characterized in that, The heat exchange mechanism (150) includes a liquid storage tank (151), an inlet pipe (152), an outlet pipe (153), and a temperature control device (154). The temperature control device (154) is installed inside the liquid storage tank (151) and is used to heat or cool the heat exchange medium inside the liquid storage tank (151). The inlet pipe (152) and the outlet pipe (153) are spaced apart and are both connected between the liquid storage tank (151) and the heat exchange cavity (180).

4. The glue dispensing device according to claim 1, characterized in that, The heat exchange cavity (180) is provided with a spiral flow channel (181), which is used to guide the heat exchange medium.

5. The glue dispensing device according to claim 1, characterized in that, The dispensing device further includes a first dispensing pipe (190) and a second dispensing pipe (200). The first dispensing pipe (190) is connected to the dispensing port (131) and is provided with a first switching valve (191). The second dispensing pipe (200) is connected to the dispensing port (131) and is provided with a second switching valve (201). The first dispensing pipe (190) and the second dispensing pipe (200) are arranged opposite to each other on both sides of the dispensing port (131).

6. The glue dispensing device according to claim 1, characterized in that, The dispensing device further includes a second temperature sensor (210), which is installed in the heat exchange cavity (180) and electrically connected to the controller (170). The controller (170) is used to control the heat exchange mechanism (150) to keep the heat exchange medium warm after the second temperature sensor (210) detects that the temperature of the heat exchange medium has reached the target temperature.

7. The glue dispensing device according to claim 1, characterized in that, The dispensing device also includes a robotic arm (220), which includes a mounting base (221). The drive motor (110) and the temperature control cylinder (140) are both mounted on the mounting base (221).

8. A method for dispensing adhesive, characterized in that, The dispensing device as described in any one of claims 1-7, wherein the dispensing method comprises: The first and second raw materials are fed into the glue inlet (131) in a preset ratio. The drive motor (110) drives the stirring rod (120) to rotate, so that the first raw material and the second raw material are mixed and foamed and then discharged from the dispensing port (132); The dispensing temperature is detected by the first temperature sensor (160), and then the controller (170) adjusts the temperature of the heat exchange medium output by the heat exchange mechanism (150) according to the dispensing temperature so that the dispensing temperature is within the preset temperature range.

9. The glue dispensing method according to claim 8, characterized in that, The dispensing device further includes a second temperature sensor (210), which is installed in the heat exchange cavity (180) and electrically connected to the controller (170); The step of using the controller (170) to regulate the temperature of the heat exchange medium output by the heat exchange mechanism (150) according to the dispensing temperature, so that the dispensing temperature is within a preset temperature range, includes: The second temperature sensor (210) is used to detect the temperature of the heat exchange medium in the heat exchange cavity (180). When the temperature of the heat exchange medium reaches the target temperature, the controller (170) controls the heat exchange mechanism (150) to keep the heat exchange medium warm.

10. The glue dispensing method according to claim 8, characterized in that, The dispensing device also includes a robotic arm (220), which is provided with a mounting base (221). The drive motor (110) and the temperature control cylinder (140) are both mounted on the mounting base (221). The dispensing method further includes: The robotic arm (220) synchronously drives the drive motor (110) and the temperature control cylinder (140) to move until the glue outlet (132) is above the glue application position.

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