Glue filling device

Abstract

The application relates to the technical field of glue pouring, and discloses a glue pouring device, which comprises a body, a glue storage part, a glue pouring assembly and an anti-overflow part. The body is provided with a containing cavity used for containing a mold. The glue storage part is used for storing glue. The glue pouring assembly comprises a glue pouring valve connected with the glue storage part. A glue pouring needle of the glue pouring valve is inserted into a glue inlet. The glue pouring valve is used for supplying glue to the glue inlet. The anti-overflow part is arranged around a forming cavity of the mold. The anti-overflow part is provided with a glue pouring channel and an anti-overflow glue channel, which are communicated with the glue inlet. The glue pouring channel is used for inserting the glue pouring needle. The glue supplied by the glue pouring valve can flow into the forming cavity through the glue pouring needle. The anti-overflow glue channel is used for preventing the reverse flow of excess glue in the forming cavity to the glue pouring channel. The glue pouring efficiency is improved by using the glue pouring device.

Description

Technical Field

[0001] This application relates to the field of glue dispensing technology, and more particularly to a glue dispensing device. Background Technology

[0002] Currently, low-pressure injection molding overmolding processes encapsulate electronic components by injecting hot melt adhesive into the mold cavity at lower pressure. Existing equipment first injects the adhesive into the cavity, and then pushes the adhesive in the cavity through the dispensing head to inject the adhesive into the mold cavity along the dispensing channel.

[0003] However, in the process of injecting the colloid into the mold cavity by pushing the existing equipment, it is impossible to control the amount of colloid injected, which may cause the product to be damaged after demolding due to colloid overflow, resulting in low injection efficiency. Utility Model Content

[0004] In view of this, this application provides a dispensing device that is simple to operate and low in cost.

[0005] One embodiment of this application provides a dispensing device. The dispensing device includes a mold with a dispensing inlet. The dispensing device further includes a body, a dispensing reservoir, a dispensing assembly, and an anti-overflow component. The body has a receiving cavity for receiving the mold. The dispensing reservoir stores adhesive. The dispensing assembly includes a dispensing valve connected to the dispensing reservoir. A dispensing needle of the dispensing valve is inserted into the dispensing inlet. The dispensing valve supplies the adhesive to the dispensing inlet. The anti-overflow component is installed around the molding cavity of the mold. The anti-overflow component has a dispensing channel communicating with the dispensing inlet and an anti-overflow channel. The dispensing channel allows the dispensing needle to be inserted. The adhesive supplied by the dispensing valve can flow into the molding cavity via the dispensing needle. The anti-overflow channel prevents excess adhesive in the molding cavity from flowing back into the dispensing channel.

[0006] This application provides a dispensing device. By setting a dispensing channel and an anti-overflow channel on the anti-overflow component, and housing the dispensing needle in the dispensing channel, the adhesive supplied by the dispensing valve can flow into the molding cavity through the dispensing needle. The amount of adhesive flowing into the molding cavity can be controlled by the dispensing valve to avoid the problem of adhesive overflow. At the same time, the anti-overflow channel accommodates excess adhesive in the molding cavity, further avoiding the problem of adhesive overflow. This solves the problem of product damage after demolding caused by adhesive overflow, and improves dispensing efficiency and the yield of products after demolding.

[0007] In some embodiments of this application, the anti-overflow component is further provided with a first protrusion and a second protrusion, the first protrusion and the second protrusion being disposed opposite each other in a first direction, the first protrusion being provided with a first channel, the cross-section of the first channel gradually decreasing along the first direction, the second protrusion being provided with a second channel, the first channel being connected to the second channel, the first channel and the second channel together forming a potting channel, the cross-sectional area of ​​the second channel in the direction perpendicular to the first direction being smaller than the cross-sectional area of ​​the potting needle in the direction perpendicular to the first direction.

[0008] In some embodiments of this application, the dispensing device further includes an adjustment component, which includes a fixed plate and a movable component. The fixed plate includes a first mounting portion and a second mounting portion. The first mounting portion is connected to the main body, the second mounting portion is connected to a first end of the movable component, and the second end of the movable component is connected to the dispensing assembly. The movable component is used to drive the dispensing assembly to move along a first direction to adjust the installation height of the dispensing assembly.

[0009] In some embodiments of this application, the dispensing device further includes a detection component, which is housed within the receiving cavity and is used to detect the installation height of the dispensing component.

[0010] In some embodiments of this application, the body includes: a stage, a positioning member, and a cavity. The cavity is mounted on the stage and forms the receiving cavity with the stage. The positioning member is mounted at the bottom of the receiving cavity and is used to position the detection component.

[0011] In some embodiments of this application, the detection component includes a detection element and a height limiting block, the positioning element is provided with a positioning groove, the height limiting block is installed in the positioning groove, and the detection element is installed on the height limiting block.

[0012] In some embodiments of this application, the dispensing device further includes a guide sleeve, which is inserted into the dispensing port and is used to guide the dispensing needle to move along the first direction.

[0013] In some embodiments of this application, the guide sleeve is provided with a stepped hole, the stepped hole including a first segment, a second segment and a third segment, the diameter of the first segment, the diameter of the second segment and the diameter of the third segment decreasing sequentially along the first direction, the connection between the second segment and the first segment is an arc transition, the connection between the second segment and the third segment is an arc transition, the cross-section of the second segment gradually decreases along the first direction, and the stepped hole is used for the dispensing needle to pass through.

[0014] In some embodiments of this application, the dispensing device further includes: a positioning plate, the positioning plate including a first connecting end and a second connecting end, the first connecting end being connected to the body, the second connecting end being connected to the mold, the second connecting end being provided with a fixing hole, the fixing hole communicating with the glue inlet, and the fixing hole being used to fix the guide sleeve.

[0015] In some embodiments of this application, the dispensing assembly further includes a controller electrically connected to the dispensing valve, the controller being used to control the dispensing valve to supply adhesive to the inlet. Attached Figure Description

[0016] Figure 1 This is a perspective view of the dispensing apparatus in one embodiment of this application.

[0017] Figure 2 This is a partial cross-sectional view of the glue-dispensing device in one embodiment of this application.

[0018] Figure 3 for Figure 2 Enlarged view of section III.

[0019] Figure 4 This is a partial exploded view of the glue-dispensing device in one embodiment of this application.

[0020] Figure 5 This is another partially exploded view of the dispensing apparatus in one embodiment of this application.

[0021] Explanation of main component symbols

[0022] 100-Dispensing device; 11-Mold; 110-Dispensing port; 111-Molding cavity; 12-Body; 120-Accommodating cavity; 1200-Positioning hole; 121-Platform; 122-Positioning component; 1220-Positioning groove; 123-Cavity; 124-Second mounting hole; 13-Dispensing component; 14-Dispensing assembly; 140-Dispensing valve; 141-Dispensing needle; 15-Overflow prevention component; 150-Dispensing channel; 151-Overflow prevention channel; 152-First protrusion; 1520-First channel; 153-Second protrusion; 15 30-Second channel; 16-Adjustment component; 160-Fixing plate; 1601-First mounting part; 1602-Second mounting part; 161-Moving part; 17-Detection component; 170-Detection part; 171-Height limit block; 18-Guide sleeve; 180-Step hole; 1800-First section; 1801-Second section; 1802-Third section; 19-Positioning plate; 190-First connecting end; 1900-First mounting hole; 191-Second connecting end; 1910-Fixing hole; 20-Positioning pin; X direction-First direction.

[0023] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0026] Currently, low-pressure injection molding overmolding processes encapsulate electronic components by injecting hot melt adhesive into the mold cavity at lower pressure. Existing equipment first injects the adhesive into the cavity, and then pushes the adhesive in the cavity through the dispensing head to inject the adhesive into the mold cavity along the dispensing channel.

[0027] However, in the process of injecting the colloid into the mold cavity by pushing the existing equipment, it is impossible to control the amount of colloid injected. This may result in problems such as colloid overflow causing damage to the product after demolding or insufficient pushing force causing uneven filling in some areas, leading to low colloid injection efficiency.

[0028] Therefore, in order to solve the above-mentioned technical problems, this application provides a glue-filling channel and a glue-preventing channel on the anti-overflow component. The glue-filling needle is housed in the glue-filling channel, so that the glue supplied by the glue-filling valve can flow into the molding cavity through the glue-filling needle. The amount of glue flowing into the molding cavity can be controlled by the glue-filling valve to avoid the problem of glue overflow. At the same time, the glue-preventing channel houses the excess glue in the molding cavity, further preventing the problem of glue overflow. This solves the problem of product damage after demolding caused by glue overflow, and improves glue-filling efficiency and the yield of products after demolding.

[0029] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0030] Please also refer to Figures 1 to 5One embodiment of this application provides a dispensing apparatus 100. The dispensing apparatus 100 includes a mold 11 having a dispensing port 110. The dispensing apparatus 100 also includes a body 12, a dispensing reservoir 13, a dispensing assembly 14, and an anti-overflow component 15. The body 12 has a receiving cavity 120 for receiving the mold 11. The dispensing reservoir 13 is used to store adhesive. The dispensing assembly 14 includes a dispensing valve 140. The dispensing valve 140 is connected to the dispensing reservoir 13. The dispensing needle 141 of the dispensing valve 140 is inserted into the dispensing port 110. The dispensing valve 140 is used to supply adhesive to the dispensing port 110. The anti-overflow component 15 is installed around the molding cavity 111 of the mold 11. The anti-overflow component 15 has a dispensing channel 150 communicating with the dispensing port 110 and an anti-overflow channel 151. The dispensing channel 150 is used for the insertion of the dispensing needle 141. The adhesive supplied by the dispensing valve 140 can flow into the molding cavity 111 via the dispensing needle 141. The anti-overflow channel 151 is used to prevent excess adhesive in the molding cavity 111 from flowing back into the dispensing channel 150.

[0031] By providing a dispensing channel 150 and an anti-overflow channel 151 on the anti-overflow component 15 of the dispensing device 100, and housing the dispensing needle 141 in the dispensing channel 150, the glue supplied by the dispensing valve 140 can flow into the molding cavity 111 through the dispensing needle 141. The amount of glue flowing into the molding cavity 111 can be controlled by the dispensing valve 140 to avoid the problem of glue overflow. At the same time, the anti-overflow channel 151 houses the excess glue in the molding cavity 111, further preventing the problem of glue overflow. This solves the problem of product damage after demolding caused by glue overflow, and improves dispensing efficiency and the yield of products after demolding.

[0032] In some embodiments of this application, the dispensing assembly 14 further includes a controller (not shown). The controller is electrically connected to the dispensing valve 140. The controller is used to control the dispensing valve 140 to supply adhesive to the dispensing port 110.

[0033] In some embodiments of this application, by sending various control signals to the dispensing valve 140, the controller controls the opening time, opening frequency, dispensing amount, etc. of the dispensing valve 140, thereby achieving precise control of the dispensing process to meet the dispensing needs of different products, improving the dispensing efficiency of the dispensing device 100, and at the same time, accurately controlling the amount of glue poured into the molding cavity 111 to avoid glue overflow, thereby ensuring the yield of the product after dispensing.

[0034] Further integration Figure 3 and Figure 5As shown, the X direction represents the first direction. The anti-overflow component 15 also has a first protrusion 152 and a second protrusion 153. Specifically, the direction in which the first protrusion 152 and the second protrusion 153 are arranged opposite to each other is the first direction. The first protrusion 152 has a first channel 1520. The cross-section of the first channel 1520 gradually decreases along the first direction. The second protrusion 153 has a second channel 1530. The first channel 1520 is connected to the second channel 1530, and the two are arranged approximately coaxially. The first channel 1520 and the second channel 1530 together form the glue-pouring channel 150. The cross-sectional area of ​​the second channel 1530 in the direction perpendicular to the first direction is smaller than the cross-sectional area of ​​the glue-pouring needle 141 in the direction perpendicular to the first direction.

[0035] Understandably, the cross-section of the glue-dispensing channel 150 gradually decreases along the direction perpendicular to the first direction, which helps to reduce the difficulty of inserting the glue-dispensing needle 141 and improve the insertion efficiency.

[0036] In some embodiments of this application, the connection between the first channel 1520 and the second channel 1530 is an arc transition, which helps to avoid damage to the glue-dispensing needle 141 during insertion and reduces the maintenance cost of the glue-dispensing needle 141.

[0037] In some embodiments of this application, by setting the cross-sectional area of ​​the second channel 1530 perpendicular to the first direction to be smaller than the cross-sectional area of ​​the dispensing needle 141 perpendicular to the first direction, on the one hand, it is beneficial for the dispensing needle 141 to dispense glue through the outlet of the dispensing channel 150, so that the glue can flow accurately into the molding cavity 111, reducing the consumption of glue and improving the accuracy of dispensing. On the other hand, it can avoid the dispensing needle 141 extending into the molding cavity 111 for dispensing, and the problem of glue backflow into the dispensing channel 150 during the dispensing process, which may cause high glue consumption, thus reducing the consumption of glue.

[0038] In some embodiments of this application, the dispensing device 100 further includes an adjusting assembly 16. The adjusting assembly 16 includes a fixed plate 160 and a movable member 161. The fixed plate 160 includes a first mounting portion 1601 and a second mounting portion 1602. The first mounting portion 1601 is connected to the body 12. The second mounting portion 1602 is connected to a first end of the movable member 161. The second end of the movable member 161 is connected to the dispensing assembly 14. The movable member 161 is used to drive the dispensing assembly 14 to move along a first direction to adjust the installation height of the dispensing assembly 14.

[0039] In some embodiments of this application, the installation height of the dispensing component 14 will also be different due to the different shapes of the products. In this embodiment, the installation height of the dispensing component 14 is adjusted by adjusting component 16 according to the shape of the product to be dispensed, so that the installation height of the dispensing component 14 meets the dispensing requirements of the corresponding product, which is beneficial to improve the accuracy of dispensing, thereby improving the dispensing efficiency and the yield of the product after dispensing.

[0040] In some embodiments of this application, the dispensing apparatus 100 further includes a detection component 17. The detection component 17 is housed within the receiving cavity 120. The detection component 17 is used to detect the installation height of the dispensing assembly 14.

[0041] In some embodiments of this application, before dispensing, the initial installation height of the dispensing assembly 14 can be detected by the detection component 17, which is beneficial for adjusting the installation height of the dispensing assembly 14 by the adjustment component 16 in the future, thereby ensuring the accuracy of the installation height of the dispensing assembly 14.

[0042] In some embodiments of this application, the body 12 includes a stage 121, a positioning member 122, and a cavity 123. The cavity 123 is mounted on the stage 121 and forms a receiving cavity 120 with the stage 121. The positioning member 122 is mounted at the bottom of the receiving cavity 120. The positioning member 122 is used to position the detection component 17.

[0043] In some embodiments of this application, the positioning member 122 is detachably connected to the bottom of the accommodating cavity 120, and the detection component 17 is positioned by the positioning member 122, which facilitates the assembly and disassembly of the positioning member 122 and the detection component 17.

[0044] In some embodiments of this application, the detection component 17 includes a detection element 170 and a height limiting block 171. The positioning element 122 is provided with a positioning groove 1220. The height limiting block 171 is installed in the positioning groove 1220. The detection element 170 is installed on the height limiting block 171.

[0045] In some embodiments of this application, the detection element 170 can be a displacement sensor. For example, the detection element 170 can be a contact displacement sensor. The contact displacement sensor is installed on the height limiting block 171 and is in stable contact with the surface of the dispensing needle 141 to obtain the installation height of the dispensing needle 141.

[0046] In some embodiments of this application, the height limiting block 171 can be used to fix the initial installation height of the glue-filling assembly 14. After the glue-filling assembly 14 is fixed, the detection component 170 is used to detect and record the initial installation height of the glue-filling assembly 14. Then, according to the shape of the product, the adjustment component 16 is used to adjust the installation height of the glue-filling assembly 14 until the glue-filling assembly 14 is installed in place, thus ensuring the accuracy of the installation height of the glue-filling assembly 14.

[0047] It is understandable that the height limit of the height limit block 171 will vary depending on the shape of the product. For example, different height limit blocks 171 can be used for different products, which is beneficial for quickly adjusting and positioning the installation height of the glue dispensing component 14, thereby improving the glue dispensing efficiency.

[0048] Understandably, the shape of the positioning groove 1220 matches the shape of the height limiting block 171, which helps to ensure the stability and accuracy of the position of the height limiting block 171.

[0049] In some embodiments of this application, the height limiting block 171 is detachably installed in the positioning groove 1220, which facilitates the replacement of the height limiting block 171 and further ensures the adjustment efficiency of the installation height of the glue potting assembly 14.

[0050] In some embodiments of this application, the dispensing device 100 further includes a guide sleeve 18. The guide sleeve 18 is inserted into the dispensing port 110. The guide sleeve 18 is used to guide the dispensing needle 141 to move along a first direction, which helps to improve the stability of the insertion of the dispensing needle 141.

[0051] For details, please refer to [link / reference]. Figure 2 As shown, the guide sleeve 18 is provided with a stepped hole 180. The stepped hole 180 includes a first section 1800, a second section 1801, and a third section 1802. The diameters of the first section 1800, the second section 1801, and the third section 1802 decrease sequentially along a first direction. The connection between the second section 1801 and the first section 1800 is an arc transition. The connection between the second section 1801 and the third section 1802 is also an arc transition. The cross-section of the second section 1801 gradually decreases along a direction perpendicular to the first direction. The stepped hole 180 is used for the dispensing needle 141 to pass through.

[0052] In some embodiments of this application, by setting an arc transition at the connection between the first segment 1800, the second segment 1801 and the third segment 1802 of the stepped hole 180, the damage rate of the dispensing needle 141 during the passage process can be reduced, ensuring the safety of the dispensing needle 141 and thus improving the dispensing efficiency.

[0053] Understandably, the cross-section of the second segment 1801 gradually decreases in the direction perpendicular to the first direction, thus determining that the inner wall of the second segment 1801 is funnel-shaped, further ensuring the smooth insertion of the glue-dispensing needle 141.

[0054] In practical applications, guiding the dispensing needle 141 through the guide sleeve 18 ensures that at least a portion of the dispensing needle 141 is located within the guide sleeve 18, which helps ensure the safety of the dispensing needle 141. For example, if the dispensing needle 141 is long, inserting the entire dispensing needle 141 into the glue inlet 110 may cause deformation of the dispensing needle 141, making it difficult for the glue to flow smoothly, or damage to the dispensing needle 141, preventing glue dispensing. In this embodiment, by housing at least a portion of the dispensing needle 141 within the guide sleeve 18, on the one hand, the problem of deformation of the dispensing needle 141 can be avoided, improving the smoothness of glue flow during the dispensing process; on the other hand, the problem of damage to the dispensing needle 141 can be avoided, ensuring the safety of the dispensing needle 141. Furthermore, since at least a portion of the dispensing needle 141 is housed within the guide sleeve 18, the remaining portion of the dispensing needle 141 extends beyond the guide sleeve 18. Therefore, when cleaning the dispensing needle 141, only the portion extending beyond the guide sleeve 18 needs to be cleaned, which improves the cleaning efficiency of the dispensing needle 141, thereby improving the maintenance efficiency of the dispensing device 100 and reducing the maintenance cost of the dispensing device 100.

[0055] Further integration Figure 4 As shown, the dispensing device 100 further includes a positioning plate 19. The positioning plate 19 includes a first connecting end 190 and a second connecting end 191. The first connecting end 190 is connected to the body 12. The second connecting end 191 is connected to the mold 11. The second connecting end 191 is provided with a fixing hole 1910. The fixing hole 1910 communicates with the glue inlet 110 and is approximately coaxially arranged. The fixing hole 1910 is used to fix the guide sleeve 18, which helps to improve the positional stability of the guide sleeve 18 and ensures that the dispensing needle 141 can be smoothly inserted into the fixing sleeve.

[0056] In some embodiments of this application, the first connecting end 190 of the positioning plate 19 is provided with a plurality of first mounting holes 1900. The body 12 is provided with second mounting holes 124 corresponding to the first mounting holes 1900. The first mounting holes 1900 and the second mounting holes 124 are coaxially arranged. The glue-pouring device 100 also includes a fixing member adapted to the corresponding first mounting hole 1900 and second mounting hole 124. The fixing member is inserted into the first mounting hole 1900 and extends to the second mounting hole 124 to fix the positioning plate 19 to the body 12, thereby ensuring the positional accuracy of the positioning plate 19.

[0057] Understandably, the positioning plate 19 is used to fix the guide sleeve 18. If the positional accuracy of the positioning plate 19 is ensured, the positional accuracy of the guide sleeve 18 can also be ensured. Since the guide sleeve 18 is fitted onto the glue inlet 110, the concentricity between the glue inlet 110, the guide sleeve 18 and the glue dispensing needle 141 can be ensured at the same time, thereby ensuring that the glue dispensing needle 141 can be smoothly inserted into the glue inlet 110 to improve glue dispensing efficiency.

[0058] In some embodiments of this application, the dispensing device 100 further includes a plurality of positioning pins 20. The bottom of the receiving cavity 120 is provided with positioning holes 1200 respectively adapted to the plurality of positioning pins 20. One end of each positioning pin 20 is connected to the mold 11. The other end of each positioning pin 20 is inserted into a corresponding positioning hole 1200. The positioning pins 20 are used to fix the mold 11.

[0059] Understandably, since the positioning element 122 is located between the bottom of the receiving cavity 120 of the body 12 and the mold 11, the positioning pin 20 needs to penetrate the positioning element 122 and connect with the positioning element 122 during the process of fixing the mold 11 and the body 12.

[0060] In some embodiments of this application, the mold 11, the body 12 and the positioning component 122 are detachably connected by the positioning pin 20, so as to realize the quick assembly and disassembly of the mold 11 and the positioning component 122, thereby improving the production efficiency of the dispensing device 100.

[0061] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and substance of the technical solutions of this application.

Claims

1. A dispensing device, comprising a mold having a dispensing port, characterized in that, The dispensing device further includes: The body has a receiving cavity for receiving the mold; Glue storage unit, used to store colloids; A dispensing assembly, comprising a dispensing valve connected to the glue reservoir, wherein the dispensing needle of the dispensing valve is inserted into the glue inlet, and the dispensing valve is used to supply the glue to the glue inlet; An anti-overflow component is installed around the molding cavity of the mold. The anti-overflow component has a glue-filling channel and an anti-overflow glue channel communicating with the glue inlet. The glue-filling channel is used for the glue-filling needle to be inserted. The glue supplied by the glue-filling valve can flow into the molding cavity through the glue-filling needle. The anti-overflow glue channel is used to prevent excess glue in the molding cavity from flowing back into the glue-filling channel.

2. The dispensing device according to claim 1, characterized in that, The anti-overflow component is further provided with a first protrusion and a second protrusion. The first protrusion and the second protrusion are arranged in a first direction relative to each other. The first protrusion is provided with a first channel. The cross-section of the first channel gradually decreases along the first direction. The second protrusion is provided with a second channel. The first channel is connected to the second channel. The first channel and the second channel together form a dispensing channel. The cross-sectional area of ​​the second channel in the direction perpendicular to the first direction is smaller than the cross-sectional area of ​​the dispensing needle in the direction perpendicular to the first direction.

3. The dispensing device according to claim 1, characterized in that, The dispensing device further includes: An adjustment assembly includes a fixed plate and a movable component. The fixed plate includes a first mounting portion and a second mounting portion. The first mounting portion is connected to the main body, the second mounting portion is connected to a first end of the movable component, and the second end of the movable component is connected to the glue-dispensing assembly. The movable component is used to drive the glue-dispensing assembly to move along a first direction to adjust the installation height of the glue-dispensing assembly.

4. The dispensing device according to claim 1, characterized in that, The dispensing device further includes a detection component, which is housed within the receiving cavity and is used to detect the installation height of the dispensing component.

5. The dispensing apparatus according to claim 4, characterized in that, The main body includes a stage, a positioning element, and a cavity. The cavity is mounted on the stage and forms the receiving cavity with the stage. The positioning element is mounted at the bottom of the receiving cavity and is used to position the detection component.

6. The dispensing apparatus according to claim 5, characterized in that, The detection component includes a detection element and a height limiting block. The positioning element is provided with a positioning groove, the height limiting block is installed in the positioning groove, and the detection element is installed on the height limiting block.

7. The dispensing apparatus according to claim 2, characterized in that, The dispensing device further includes a guide sleeve, which is inserted into the dispensing port and is used to guide the dispensing needle to move along the first direction.

8. The dispensing apparatus according to claim 7, characterized in that, The guide sleeve is provided with a stepped hole, which includes a first section, a second section, and a third section. The diameters of the first section, the second section, and the third section decrease sequentially along the first direction. The connection between the second section and the first section is an arc transition, and the connection between the second section and the third section is an arc transition. The cross-section of the second section gradually decreases along the direction perpendicular to the first direction. The stepped hole is used for the glue-dispensing needle to pass through.

9. The dispensing apparatus according to claim 7, characterized in that, The dispensing device further includes a positioning plate, which includes a first connecting end and a second connecting end. The first connecting end is connected to the body, and the second connecting end is connected to the mold. The second connecting end is provided with a fixing hole, which communicates with the glue inlet and is used to fix the guide sleeve.

10. The dispensing apparatus according to any one of claims 1 to 9, characterized in that, The dispensing assembly further includes a controller, which is electrically connected to the dispensing valve and is used to control the dispensing valve to supply adhesive to the inlet.

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