A glue wiping mechanism of a glue dispensing and filling machine

Abstract

The utility model discloses a kind of glue wiping mechanism of glue dispensing and filling machine, specifically to glue dispensing equipment technical field, including clamping structure and glue wiping assembly, clamping structure includes the initiative clamping block for initiative clamping needle and the fixed clamping block of cooperation initiative clamping block fixed needle, initiative clamping block includes bottom block and the head replacement block on bottom block, bottom block is equipped with the clamping groove and limiting component cooperation with head replacement block;Glue wiping assembly includes the glue wiping tape for wiping needle, the driving assembly of glue wiping tape rotation and the limiting post of guiding glue wiping tape pass between initiative clamping block and fixed clamping block.The utility model by the initiative clamping block in clamping structure is set as bottom block and head replacement block, so that when needing to replace clamping structure, only need to replace head replacement block, bottom block has universality, this design improves the utilization efficiency of clamping structure, bottom block is equipped with clamping groove and limiting component, to fix the position of the head replacement block, so that head replacement block realizes accurate positioning and the purpose of clamping firm.

Description

Technical Field

[0001] This utility model belongs to the field of dispensing equipment technology, specifically relating to a glue-wiping mechanism for a dispensing and potting machine. Background Technology

[0002] Adhesive application mechanisms are widely used in various scenarios requiring precise dispensing, such as the encapsulation of electronic components, the manufacturing of LCD screens, and the bonding of automotive parts. By keeping the nozzles clean, adhesive application mechanisms can significantly improve the stability and accuracy of dispensing, reduce production interruptions caused by nozzle clogging, and thus improve production efficiency and product quality.

[0003] The adhesive wiping device is a crucial component of needle-type dispensing equipment, primarily used to remove residual adhesive from the tip and sides of the needle. Existing wiping mechanisms use a drive shaft and clamping structure to tightly adhere the cloth to the needle for wiping. However, this cleaning method requires replacing the entire clamping structure when dealing with different needles, resulting in low utilization efficiency and cumbersome assembly and disassembly. Utility Model Content

[0004] This utility model provides a glue-wiping mechanism for a dispensing and potting machine to solve at least one of the above-mentioned technical problems.

[0005] The technical solution adopted by this utility model is as follows: a glue-wiping mechanism for a dispensing machine, comprising a clamping structure and a glue-wiping assembly. The clamping structure includes an active clamping block for actively clamping a needle tip and a fixed clamping block that cooperates with the active clamping block to fix the needle tip. The active clamping block includes a base block and a head-changing block disposed on the base block. The base block is provided with a slot and a limiting component that cooperate with the head-changing block. The glue-wiping assembly includes a glue-wiping tape for wiping the needle tip, a driving component for rotating the glue-wiping tape, and a limiting post for guiding the glue-wiping tape through the active clamping block and the fixed clamping block.

[0006] In a preferred embodiment, the slot is a T-shaped slot, and the head-changing block is provided with a T-shaped block that matches the T-shaped slot, wherein the T-shaped block and the T-shaped slot are in clearance fit.

[0007] In a preferred embodiment, the limiting component includes an elastic element fixedly connected to the side of the T-slot facing the head-changing block.

[0008] In a preferred embodiment, the elastic element is a U-shaped spring sheet including a connecting portion and a deformation portion. A movable hole is formed on the side of the T-shaped groove, and the connecting portion extends into the movable hole to buffer the position of the head-changing block in the bottom block through the deformation of the U-shaped spring sheet.

[0009] In a preferred embodiment, the bottom block is provided with a support plate, and the support plate is provided with a small hole for alignment; the side of the head-changing block facing the support plate is provided with a locking post that mates with the small hole.

[0010] In a preferred embodiment, the fixing block includes a backing plate and a spring connected to the backing plate, and a flexible silicone pad is provided on the side of the backing plate facing the active clamping block.

[0011] In a preferred embodiment, the wiping tape has a three-layer composite structure, including a silicone buffer layer, a porous copper mesh layer, and a nanofiber layer, wherein the surface of the nanofiber layer is coated with an adhesive-repellent coating.

[0012] In a preferred embodiment, the drive assembly is provided with a heating element connected to the porous copper mesh layer.

[0013] In a preferred embodiment, the adhesive application assembly further includes a collection box, the bottom of which is connected to a drain pipe and a control valve.

[0014] Due to the adoption of the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0015] 1. As a preferred embodiment of this utility model, by setting the active clamping block in the clamping structure as a bottom block and a head-changing block, when the clamping structure needs to be replaced, only the head-changing block needs to be replaced. The bottom block has universality. This design improves the utilization efficiency of the clamping structure. The slot provided on the bottom block realizes the purpose of quick assembly. The setting of the limiting component is to fix the position of the head-changing block, so that the head-changing block can firmly clamp the needle without damaging the needle.

[0016] 2. As a preferred embodiment of this utility model, by making the slot a T-shaped slot, it is ensured that the head-changing block moves vertically in a straight line along the direction of the slot to achieve precise positioning, and the head-changing block and the bottom block are firmly engaged to prevent the head-changing block from falling off. The T-shaped block and the T-shaped slot are set to a clearance fit, allowing the head-changing block to move laterally in the slot.

[0017] As a preferred embodiment of this utility model, the elastic element transforms the gap fit between the T-block and the T-groove into a buffer during the movement of the head-changing block. This ensures that the side wall of the head-changing block is always in close contact with the bottom block, thus eliminating the gap fit, and also reduces the impact and wear caused by the collision with the needle.

[0018] In addition, the deformation of the deformable part and the movable part on the U-shaped spring sheet is coordinated to buffer the position of the head-changing block in the base plate. The U-shaped spring sheet also enables the base block to have elastic deformation capability, which can adjust the position of the head-changing block according to the magnitude of the external force, thus playing a role in buffering and adaptive clamping.

[0019] 4. As a preferred embodiment of this utility model, by setting small holes on the tray for alignment and cooperating with the locking pins on the head-changing block, faster and more accurate positioning can be achieved, and the tight fit between the locking holes and the locking pins can prevent the head-changing block from falling off.

[0020] 5. As a preferred embodiment of this utility model, by means of the elastic adjustment of the spring and the flexible protection of the silicone pad, the fixing block can provide a stable clamping force when clamping the needle, and can also adapt to needles of different sizes and surface materials, avoiding damage to the needle, while enhancing the reliability of clamping.

[0021] 6. As a preferred embodiment of this utility model, through the complementary functions of the three-layer structure, the wiping tape can protect the surface being cleaned through the silicone buffer layer, and can also quickly absorb stains using nanofibers during the wiping process. At the same time, the adhesive coating prevents stains from adhering to the surface again, thereby improving cleaning efficiency and quality.

[0022] In addition, the heat generated by the heating element is conducted to each layer of the wiping tape through the porous copper mesh, which reduces the viscosity of sticky stains, accelerates the evaporation of liquid stains, improves the adhesive properties of the nanofiber surface, and further enhances the wiping tape's ability to clean stubborn stains.

[0023] 7. As a preferred embodiment of this utility model, a glue collection and discharge structure is formed by setting up a collection box, a drain pipe and a control valve to achieve centralized storage of liquid stains adsorbed by the wiping tape, avoiding the stains from dripping randomly and contaminating the working environment or equipment, and facilitating the subsequent unified treatment of the stains. Attached Figure Description

[0024] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0025] In the attached diagram:

[0026] Figure 1 This is a schematic diagram of the adhesive application mechanism of the dispensing and potting machine of this utility model;

[0027] Figure 2 This is a schematic diagram of the structure for holding the needle.

[0028] Figure 3 This is a schematic diagram of the card slot structure;

[0029] Figure 4 This is a schematic diagram of the elastic element.

[0030] Figure 5 This is an enlarged schematic diagram of the connecting part.

[0031] Figure 6 This is a schematic diagram of the structure of the small hole and the locking pin;

[0032] Figure 7 This is a schematic diagram of the structure of the stop plate and the spring;

[0033] Figure 8 This is a schematic cross-sectional view of the tape being wiped off.

[0034] Figure 9 This is a schematic diagram of the collection box structure;

[0035] Figure label:

[0036] 1. Clamping structure; 11. Needle; 12. Collection box; 121. Drain tube; 122. Control valve;

[0037] 2. Active clamping block; 21. Base block; 211. Slot; 2111. T-slot; 212. Limiting component; 213. U-shaped spring; 2131. Connecting part; 2132. Deformation part; 214. Movable hole; 215. Support plate; 2151. Small hole; 22. Head changing block; 221. T-block; 222. Locking post;

[0038] 3. Fixing block; 31. Support plate; 311. Flexible silicone pad; 32. Spring;

[0039] 4. Adhesive application assembly; 41. Adhesive application tape; 411. Silicone buffer layer; 412. Porous copper mesh; 413. Nanofiber; 42. Drive assembly; 421. Heating element; 43. Limiting post. Detailed Implementation

[0040] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0041] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0042] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] Example 1:

[0046] A preferred embodiment, such as Figure 1 and Figure 2As shown, a dispensing and coating machine's coating mechanism includes a clamping structure 1 and a coating assembly 4. The clamping structure 1 includes an active clamping block 2 and a fixed clamping block 3. The base block 21 on the active clamping block 2 serves as a basic support component, and it is provided with a slot 211 and a limiting component 212 for fixing a change head block 22. The change head block 22 on the active clamping block 2 directly clamps the needle 11 and can be replaced according to the needle 11 specification. It is connected to the base block 21 through the slot 211. The fixed clamping block 3 cooperates with the active clamping block 2 to fix the needle 11 from the other side, forming a bidirectional clamping to ensure that the needle 11 is stable and does not wobble. The limiting component 212 is installed on the base block 21. When the change head block 22 is inserted into the slot 211, the limiting component 212 automatically locks to prevent the change head block 22 from shifting and to ensure the clamping accuracy of the needle 11. Specifically, in use, the appropriate change head block 22 is inserted into the slot 211 of the base block 21, and the limiting component 212 automatically locks the change head block. 22. Place the needle 11 into the clamping groove between the active clamping block 2 and the fixed clamping block 3, ensuring that the tip of the needle 11 is aligned with the wiping area of ​​the adhesive wiping assembly 4, and that the adhesive wiping tape 41 passes through the clamping groove via the limiting post 43. The drive assembly 42 consists of a motor and a pulley. The motor rotates to drive the adhesive wiping tape 41 to move cyclically, achieving continuous wiping. The adhesive wiping tape 41 is guided by the bracket fixed to the adhesive wiping assembly 4, ensuring that the adhesive wiping tape 41 can surround the needle 11 after passing through the clamping groove. The motor of the drive assembly 42 is started, driving the adhesive wiping tape 41 to rotate cyclically at a set speed. At the same time, the adhesive wiping tape 41 contacts the surface of the needle 11, and the adhesive is removed through relative motion friction. This adhesive wiping mechanism, through the design of precise clamping and cyclic wiping, realizes the automated cleaning of the dispensing needle 11, which can effectively avoid the needle 11 clogging or the decrease in dispensing accuracy caused by adhesive residue, and improve the working efficiency of the dispensing equipment.

[0047] Example 2:

[0048] like Figure 3 As shown, a dispensing and potting machine's glue-wiping mechanism differs from Embodiment 1. The slot 211 is a T-shaped slot 2111, providing a guiding and support path. The head-changing block 22 is provided with a T-shaped block 221 that matches the T-shaped slot 2111. It is installed on the side of the head-changing block 22 facing the T-shaped slot 2111, forming a nested structure with the slot. There is a small gap between the mating dimensions of the T-shaped block 221 and the T-shaped slot 2111, allowing the head-changing block 22 to slide relative to each other along the parallel direction of the active clamping block 2 and the fixed clamping block 3, but restricting its horizontal displacement. When replacing the head-changing block 22, the T-shaped block 221 of the head-changing block 22 to be replaced is aligned with the opening of the T-shaped slot 2111 and inserted by sliding along the slot opening. The block is guided by the T-shaped slot 2111 to enter. Without disassembling bolts or other fasteners, the head-changing block 22 can be fixed in the bottom block 21. When disassembling, the head-changing block 22 is slid directly along the T-shaped slot 2111 to the disengaged position, realizing quick head replacement.

[0049] Example 3:

[0050] like Figures 4-6 As shown, a dispensing and potting machine's wiping mechanism differs from Embodiment 1. The core principle of the U-shaped spring 213 lies in utilizing elastic deformation to absorb and buffer external forces. During use, the connecting part 2131 of the U-shaped spring 213 is aligned with the movable hole 214 on the side of the T-shaped groove 2111 of the base block 21, and it is slowly inserted to securely mount the spring on the base block 21. The replacement head block 22 is then embedded into the T-shaped groove 2111 of the base block 21. During this process, the replacement head block 22 contacts the deformable part 2132 of the U-shaped spring 213. Due to the elasticity of the spring, a certain pushing force is generated on the replacement head block 22, fixing it in a suitable position for wiping the needle. During the process of step 11, the active clamping block 2 and the fixed clamping block 3 work together to clamp the needle 11. At this time, the U-shaped spring 213 will deform slightly again according to the slight adjustment when the needle 11 is installed, further adapting to the position of the head changing block 22 and the needle 11, ensuring that the needle 11 is in an accurate clamping state. During the movement of the needle 11 and the application of glue, if the head changing block 22 moves in the bottom block 21 due to mechanical vibration, the deformation part 2132 of the U-shaped spring 213 will also immediately undergo elastic deformation to buffer this external force impact. The U-shaped spring 213 maintains the relative stability of the head changing block 22 and the needle 11, ensuring the consistency and stability of the wiping effect.

[0051] In addition, the bottom block 21 is provided with a support plate 215, and the support plate 215 is provided with a small hole 2151 for alignment. The side of the head-changing block 22 facing the support plate 215 is provided with a locking post 222 that cooperates with the small hole 2151. When the head-changing block 22 is embedded in the bottom block 21, the locking post 222 of the head-changing block 22 is aligned with the small hole 2151. After the locking post 222 is fully inserted, the changing plate and the universal plate are attached. Since the small hole 2151 is the same diameter as the locking post 222 and is set as a long strip along the parallel direction of the active clamping block 2 and the fixed clamping block 3, the locking post 222 is restricted from moving up and down. However, the head-changing block 22 can move horizontally relative to the bottom block 21 according to the U-shaped spring piece 213. The cooperation between the small hole 2151 and the locking post 222 can also prevent the head-changing block 22 from detaching from the bottom block 21.

[0052] Example 4:

[0053] like Figure 7As shown, a dispensing and potting machine's wiping mechanism differs from Embodiment 1. The fixed clamping block 3 includes a backing plate 31 and a spring 32 connected to the backing plate 31. A flexible silicone pad 311 is provided on the side of the backing plate 31 facing the active clamping block 2. When the active clamping block 2 pushes the fixed clamping block 3 to clamp the needle 11, the backing plate 31 is squeezed and compresses the spring 32 backward. The reverse elastic force generated by the spring 32 is used for the needle 11 through the backing plate 31, ensuring that different needles 11 can be effectively clamped within a certain range. The softness of the flexible silicone pad 311 causes it to deform under force, closely conforming to the contour of the needle 11 surface, increasing the contact area, dispersing the clamping force, and preventing the needle 11 from being damaged by the clamping force. At the same time, it can also prevent the workpiece from shifting, maintain the relative stability of the needle 11, and ensure the consistency and stability of the wiping effect.

[0054] Example 5:

[0055] like Figure 8 As shown, a dispensing and potting machine's adhesive wiping mechanism differs from Embodiment 1. The wiping tape 41 has a three-layer composite structure, including a bottom silicone buffer layer 411, a middle porous copper mesh 412, and a surface nanofiber 413. The surface is coated with a hydrophobic coating. The silicone buffer layer 411, as the bottom layer, has high elasticity and softness, allowing the wiping tape 41 to tightly adhere to the surface of the needle 11. The porous copper mesh 412 is located in the middle layer, utilizing the thermal conductivity of copper to quickly conduct heat while also providing structural support. The surface layer of the nanofiber 413 is made of nanoscale fiber material, with nanoscale pores between the fibers forming an air layer. Combined with the surface coating made of a low surface energy material, a fluoropolymer hydrophobic coating, the tape surface has extremely low surface energy, preventing adhesive adhesion and achieving self-cleaning and efficient wiping.

[0056] In addition, such as Figure 1 As shown, the drive assembly 42 is equipped with a heating element 421 to connect to a porous copper mesh 412 for heating the wiping tape 41. When the heating element 421 is activated, one end of the wiping tape 41 is inserted into the heating hole of the heating element 421. The heating hole contains a connector connected to the porous copper mesh 412. Heat is quickly conducted to the wiping tape 41 through the porous copper mesh 412, causing the surface temperature of the silicone buffer layer 411 and nanofiber 413 to gradually increase. Heat is transferred from the wiping tape 41 to the stain, which begins to soften or evaporate the stain, ensuring that the stain is in an easy-to-remove state.

[0057] Example 6:

[0058] like Figure 9As shown, a glue-wiping mechanism for a dispensing and potting machine, differing from Embodiment 1, includes a collection box 12. A drain pipe 121 and a control valve 122 are connected to the bottom of the collection box. The collection box 12 is installed below the clamping structure 1 and is used to collect the dirt adsorbed by the wiping tape 41. Its interior is a hollow cavity with smooth inner walls to prevent dirt residue. The wiping tape 41 has a scraper; after wiping the needle 11, the scraper scrapes off the wiping tape 41, causing the glue to detach and fall into the collection box 12. The drain pipe 121 is connected to the bottom of the collection box 12 to drain the liquid dirt inside. The control valve 122 is installed on the drain pipe 121, and the draining can be started and stopped manually to prevent dirt from dripping randomly and contaminating the working environment or equipment, while also facilitating subsequent unified treatment of the dirt.

[0059] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0060] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0061] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A glue-wiping mechanism for a dispensing and potting machine, characterized in that, It includes a clamping structure (1) and an adhesive application assembly (4). The clamping structure (1) includes an active clamping block (2) for actively clamping the needle (11) and a fixing clamping block (3) that cooperates with the active clamping block (2) to fix the needle (11). The active clamping block (2) includes a base block (21) and a head-changing block (22) provided on the base block (21). The base block (21) is provided with a slot (211) and a limiting component (212) that cooperate with the head-changing block (22). The adhesive wiping assembly (4) includes an adhesive wiping strip (41) for wiping the needle (11), a drive assembly (42) for rotating the adhesive wiping strip (41), and a limiting post (43) for guiding the adhesive wiping strip (41) through the active clamp (2) and the fixed clamp (3).

2. The glue-wiping mechanism of the dispensing and potting machine according to claim 1, characterized in that, The slot (211) is a T-shaped slot (2111), and the head-changing block (22) is provided with a T-shaped block (221) that matches the T-shaped slot (2111). The T-shaped block (221) and the T-shaped slot (2111) are in clearance fit.

3. The glue-wiping mechanism of the dispensing and potting machine according to claim 2, characterized in that, The limiting component (212) includes an elastic element fixedly connected to the side of the T-slot (2111) facing the head-changing block (22).

4. The glue-wiping mechanism of the dispensing and potting machine according to claim 3, characterized in that, The elastic element is a U-shaped spring sheet (213) including a connecting part (2131) and a deformation part (2132). A movable hole (214) is formed on the side of the T-shaped groove (2111). The connecting part (2131) extends into the movable hole (214) to buffer the position of the head-changing block (22) in the bottom block (21) by the deformation of the U-shaped spring sheet (213).

5. The glue-wiping mechanism of the dispensing and potting machine according to claim 1, characterized in that, The bottom block (21) is provided with a support plate (215), and the support plate (215) is provided with small holes (2151) for alignment. The head-changing block (22) has a locking post (222) that mates with the small hole (2151) on the side facing the tray (215).

6. The glue-wiping mechanism of the dispensing and potting machine according to claim 1, characterized in that, The fixed clamp (3) includes a stop plate (31) and a spring (32) connecting the stop plate (31). A flexible silicone pad (311) is provided on the side of the stop plate (31) facing the active clamp (2).

7. The glue-wiping mechanism of the dispensing and potting machine according to claim 1, characterized in that, The wiping tape (41) has a three-layer composite structure, including a silicone buffer layer (411), a porous copper mesh layer (412), and a nanofiber layer (413). The surface of the nanofiber layer (413) is coated with a hydrophobic coating.

8. The glue-wiping mechanism of the dispensing and potting machine according to claim 7, characterized in that, The drive assembly (42) is provided with a heating element (421) connected to the porous copper mesh layer (412).

9. The glue-wiping mechanism of the dispensing and potting machine according to claim 1, characterized in that, The adhesive wiping assembly (4) also includes a collection box (12), the bottom of which is connected to a drain pipe (121) and a control valve (122).

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