Dispensing mechanism and dispensing method thereof

Abstract

The invention discloses an adhesive dispensing mechanism and an adhesive dispensing method thereof.The adhesive dispensing mechanism comprises a supporting frame, a main body part, an adhesive dispensing needle and a balance weight part, and the supporting frame is fixedly arranged; the main body part is rotationally connected with the support frame; the main body part is provided with a first end and a second end which are oppositely arranged along a first direction; the dispensing needle is connected with the main body part and is arranged close to the first end of the main body part; the counterweight part is arranged close to the second end of the main body part, at least part of the counterweight part is movably connected with the main body part, and the counterweight part can move in the first direction relative to the main body part, so that at least part of the counterweight part is close to or away from the dispensing needle.

Description

Technical Field

[0001] The present application relates to the technical field of glue dispensing equipment, and more specifically, to a glue dispensing mechanism and a glue dispensing method thereof. Background Art

[0002] At present, the dispensing process is widely used in AR / VR, electronic products, automobiles, precision structural parts manufacturing and other fields. As the precision of product manufacturing becomes higher and higher and the manufacturing process becomes more and more complex, the requirements for dispensing technology are also getting higher and higher.

[0003] At present, problems such as glue breakage and glue overflow are prone to occur when dispensing low-viscosity glue and products with height differences. Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Summary of the invention

[0004] One purpose of the present application is to provide a new technical solution for a dispensing mechanism and a dispensing method thereof.

[0005] According to a first aspect of the present application, a glue dispensing mechanism is provided, the glue dispensing mechanism comprising:

[0006] A support frame, wherein the support frame is fixedly arranged;

[0007] A main body, the main body being rotatably connected to the support frame; the main body having a first end and a second end arranged opposite to each other along a first direction;

[0008] A dispensing needle, the dispensing needle is connected to the main body and is disposed near the first end thereof;

[0009] A counterweight is disposed near the second end of the main body, the counterweight is at least partially movably connected to the main body and can move relative to the main body along a first direction so that the counterweight is at least partially close to or away from the dispensing needle.

[0010] Optionally, the counterweight member includes a counterweight block and a driver connected to each other, the counterweight block is slidably connected to the main body, and the driver can drive the counterweight block to move along a first direction to approach or move away from the dispensing needle.

[0011] Optionally, the main body is provided with a sliding groove extending along the first direction, the counterweight block is at least partially disposed in the sliding groove, and the counterweight block is slidably connected to the sliding groove.

[0012] Optionally, a guide groove extending along a first direction is provided on a side of the sliding groove, a guide platform is protruding from a side of the counterweight block, the guide platform is embedded in the guide groove, and the guide platform is slidably connected to the guide groove.

[0013] Optionally, the driver comprises a driving body and a driving shaft connected to each other, the driving body is fixedly arranged, the driving shaft is connected to the counterweight block, and the driving shaft can move relative to the driving body and drive the counterweight block to move along the first direction.

[0014] Optionally, the drive shaft is threadably connected to the counterweight.

[0015] Optionally, the dispensing mechanism further includes a fixing plate, the fixing plate is connected to the second end of the main body, and the driving body is mounted on the fixing plate.

[0016] Optionally, the dispensing mechanism further includes a limiting member, which is connected to the support frame and is arranged in a path in which the main body rotates relative to the support frame.

[0017] According to a second aspect of the present application, a dispensing method of the dispensing mechanism as described in the first aspect is provided, and the dispensing method comprises:

[0018] According to the preset counterweight value of the dispensing needle, adjusting the minimum distance between the counterweight and the dispensing needle;

[0019] The end of the dispensing needle away from the main body is brought into contact with the product to be dispensed and the dispensing operation is performed.

[0020] Optionally, before adjusting the minimum distance between the counterweight and the dispensing needle according to the preset counterweight value of the dispensing needle, the dispensing method further includes:

[0021] The installation position and installation angle of the dispensing needle relative to the main body are corrected.

[0022] The dispensing mechanism provided in the embodiment of the present application performs dispensing by adapting the dispensing needle to slight height changes of the product, thereby ensuring that the glue is continuously applied and does not overflow during the dispensing process, thereby improving the quality of the dispensing operation.

[0023] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0025] Figure 1 The figure shows the overall structure of a dispensing mechanism of the present application. Figure 1 ;

[0026] Figure 2 The figure shows the overall structure of a dispensing mechanism of the present application. Figure 2 ;

[0027] Figure 3 The figure shows a partial structural diagram of a dispensing mechanism of the present application. Figure 1 ;

[0028] Figure 4 The figure shows a partial structural diagram of a dispensing mechanism of the present application. Figure 2 ;

[0029] Figure 5 The figure shows a partial structural diagram of a dispensing mechanism of the present application. Figure 3 ;

[0030] Figure 6 The figure shows a partial structural diagram of a dispensing mechanism of the present application. Figure 4 .

[0031] Description of reference numerals:

[0032] 1. Glue dispensing mechanism; 11. Support frame; 12. Main body; 120. Sliding groove; 1200. Guide groove; 13. Glue dispensing needle; 14. Counterweight; 141. Counterweight block; 1410. Guide platform; 142. Driver; 1421. Driver body; 1422. Driver shaft; 15. Fixed plate; 16. Limiting member; 17. Glue supply hose; 18. Adapter plate; 10. Rotating shaft. DETAILED DESCRIPTION

[0033] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0035] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0036] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0037] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0038] Reference Figure 1 to Figure 6As shown, according to an embodiment of the present application, a dispensing mechanism 1 is provided, the dispensing mechanism 1 comprises a support frame 11, a main body 12, a dispensing needle 13 and a counterweight 14, the support frame 11 is fixedly arranged; the main body 12 is rotatably connected to the support frame 11; the main body 12 has a first end and a second end arranged opposite to each other along a first direction; the dispensing needle 13 is connected to the main body 12 and arranged close to the first end thereof;

[0039] The counterweight 14 is disposed near the second end of the main body 12 , and is at least partially movably connected to the main body 12 and can move relative to the main body 12 along a first direction so that the counterweight 14 is at least partially close to or away from the dispensing needle 13 .

[0040] In the dispensing mechanism 1 provided in the embodiment of the present application, the support frame 11 serves as the fixed foundation of the entire mechanism and can be firmly mounted on a workbench or the main body of the device by bolts or other fastening methods. The main body 12 and the support frame 11 are connected by rotation to achieve angle adjustment to meet different work requirements; optionally, the main body 12 is connected by rotation with the support frame 11 through a rotating shaft 10. The main body 12 has a first end and a second end that are arranged oppositely along its length direction (first direction); and the main body 12 has an upper surface and a lower surface that are arranged oppositely.

[0041] The glue dispensing needle 13 is connected to the lower surface of the main body 12 and is arranged near the first end of the main body. The glue dispensing needle 13 is used to accurately apply glue to the product to be glued during the glue dispensing process. Further, the glue dispensing mechanism 1 also includes a glue supply hose 17, which is installed on the main body 12 and communicated with the glue dispensing needle 13, and the glue supply hose 17 provides glue for the glue dispensing needle 13.

[0042] The counterweight 14 is disposed on the upper surface of the main body 12 and is disposed near the second end of the main body 12. The counterweight 14 is used to adjust the downward pressure of the dispensing needle 13 during operation to better adapt to the height change of the product surface. The counterweight 14 is at least partially movably connected to the main body 12, and can move along the first direction to approach or move away from the dispensing needle 13. When performing the dispensing operation, the position of the counterweight can be adjusted according to actual needs to achieve the best counterweight effect.

[0043] In the dispensing mechanism 1 provided in the embodiment of the present application, the downward pressure weight of the dispensing needle 13 during operation is flexibly adjusted by the counterweight 14, and the main body 12 and the support frame 11 are rotatably connected to allow the main body 12 and the dispensing needle 13 to achieve angle adjustment, so as to adjust the height position of the dispensing needle 13 relative to the product, and form a more reasonable dynamic balance state. When the surface of the product is concave, the dispensing mechanism 1 uses its own gravity to move the dispensing needle 13 downward. When the surface of the product is convex, the convex surface of the product applies a reaction force to the dispensing needle 13 to lift the dispensing needle 13, thereby fully realizing that the dispensing needle 13 can adapt to the slight height change of the product to perform dispensing, thereby ensuring that the glue is continuously glued and does not overflow during the dispensing process, thereby improving the quality of the dispensing operation.

[0044] Optionally, the main body 12 is similar to an isosceles triangle, with its first end corresponding to the vertex of the isosceles triangle and its second end corresponding to the base of the isosceles triangle. Such a shape structure of the main body 12 is conducive to the installation of the counterweight 14 and helps to achieve a better counterweight effect.

[0045] Reference Figure 1 As shown, in one embodiment, the counterweight member 14 includes a counterweight block 141 and a driver 142 that are connected to each other, the counterweight block 141 is slidably connected to the main body 12, and the driver 142 can drive the counterweight block 141 to move along a first direction to approach or move away from the dispensing needle 13.

[0046] In this specific example, the counterweight 14 includes a counterweight block 141 and a driver 142. The counterweight block 141 is the main weight source, which is slidably connected to the main body 12 and can move freely along the first direction; optionally, the counterweight block 141 is made of metal, for example, the counterweight block 141 is a lead block made of lead material. The driver 142 is used to drive the counterweight block 141 to move. According to actual use needs, the driver 142 can be selected as a manual drive device, or an electric, pneumatic or hydraulic drive device.

[0047] Reference Figure 3-4 As shown, in one embodiment, the main body 12 is provided with a sliding groove 120 extending along a first direction, the counterweight block 141 is at least partially disposed in the sliding groove 120 , and the counterweight block 141 is slidably connected with the sliding groove 120 .

[0048] In this specific example, the counterweight 141 reciprocates along the first direction in the sliding groove 120 provided in the main body 12 to approach or move away from the dispensing needle 13; this ensures the stability and accuracy of the counterweight 141 during movement.

[0049] Reference Figure 3-4As shown, in one embodiment, a guide groove 1200 extending along a first direction is provided on the side of the sliding groove 120, a guide platform 1410 is protrudingly provided on the side of the counterweight block 141, and the guide platform 1410 is embedded in the guide groove 1200, and the guide platform 1410 is slidably connected with the guide groove 1200.

[0050] In this specific example, the sliding fit connection between the guide platform 1410 of the counterweight block 141 and the guide groove 1200 can provide a guiding effect for the reciprocating movement of the counterweight block 141 along the first direction, thereby further ensuring the stability and accuracy of the counterweight block 141 during the movement, and preventing the counterweight block 141 from shaking and position shifting during the movement.

[0051] Reference Figure 5-6 As shown, in one embodiment, the driver 142 includes a driving body 1421 and a driving shaft 1422 that are connected to each other, the driving body 1421 is fixedly arranged, the driving shaft 1422 is connected to the counterweight block 141, and the driving shaft 1422 can move relative to the driving body 1421 and drive the counterweight block 141 to move along the first direction.

[0052] In this specific example, the driver 142 includes a driving body 1421 and a driving shaft 1422. The driving body 1421 is fixedly arranged, for example, the driving body 1421 is directly or indirectly mounted on the main body 12; and the driving shaft 1422 is connected to the counterweight 141. The counterweight 141 can be driven to move along the first direction through the rotation or telescopic movement of the driving shaft 1422 relative to the driving body 1421.

[0053] Reference Figure 6 As shown, in one embodiment, the driving shaft 1422 is threadedly connected to the counterweight 141 .

[0054] In this specific example, the drive shaft 1422 and the counterweight 141 are connected in a threaded connection. The drive shaft 1422 rotates relative to the drive body 1421, and the threaded structure converts the rotational motion of the drive shaft 1422 into a linear translational motion of the counterweight 141. This connection method has the advantages of simple structure, easy implementation, low cost and high precision. Through the threaded connection structure, the drive shaft 1422 rotates and drives the counterweight 141 to perform a linear translational motion with an accuracy of 0.01 mm.

[0055] Reference Figure 1 , Figure 5 , Figure 6As shown, in one embodiment, the dispensing mechanism further includes a fixing plate 15 , the fixing plate 15 is connected to the second end of the main body 12 , and the driving body 1421 is mounted on the fixing plate 15 .

[0056] In this specific example, in order to facilitate the installation and maintenance of the driver 142, the dispensing mechanism also includes a fixing plate 15, which is connected to the second end of the main body 12, for example, the fixing plate 15 and the main body 12 are connected by bolts; the driver 142 is installed on the fixing plate 15, for example, the fixing plate 15 is provided with a mounting hole, and the driving body 1421 of the driver 142 is penetrated and installed in the mounting hole.

[0057] Reference Figure 2 As shown, in one embodiment, the dispensing mechanism further includes a limiter 16 , which is connected to the support frame 11 , and the limiter 16 is disposed in a path where the main body 12 rotates relative to the support frame 11 .

[0058] In this specific example, in order to prevent the main body 12 from exceeding the preset range during the rotation process and damaging the mechanism or affecting the dispensing effect, the dispensing mechanism also includes a limiter 16; the limiter 16 is connected to the support frame 11, for example, the limiter 16 is connected to the support frame 11 through an adapter plate 18, one end of the adapter plate 18 is connected to the support frame 11 by bolts, and the other end of the adapter plate 18 is connected to the limiter 16; in a specific example, the limiter 16 is a limiter bolt, which is screwed on the adapter plate 18 in a threaded manner, and the end of the limiter bolt is arranged relative to the lower surface of the main body 12; by rotating the limiter bolt relative to the adapter plate 18, the length of the limiter bolt extending from the adapter plate 18 can be flexibly adjusted, thereby adjusting the distance between the end of the limiter bolt and the lower surface of the main body 12. When the main body 12 rotates to the preset position, the end of the limiter bolt will contact the lower surface of the main body 12 and prevent it from continuing to rotate, thereby ensuring the stability and accuracy of the dispensing operation.

[0059] According to another embodiment of the present application, a dispensing method of the dispensing mechanism as described above is provided, and the dispensing method comprises:

[0060] According to the preset counterweight value of the dispensing needle 13, adjusting the minimum distance between the counterweight member 14 and the dispensing needle 13;

[0061] The end of the glue dispensing needle 13 away from the main body 12 is brought into contact with the product to be glued and the glue dispensing operation is performed.

[0062] In the dispensing method provided in the embodiment of the present application, the preset counterweight value can be set by simulation or calculation, for example, based on the material, size, weight, and dispensing position of the product to be dispensed, as well as the viscosity, fluidity, and curing time of the glue. After the preset counterweight value is set, the counterweight 14 is moved along the main body 12 according to the preset counterweight value to adjust the minimum distance between the counterweight 14 and the dispensing needle 13, so as to meet the requirement of the preset counterweight value. The so-called minimum distance between the counterweight 14 and the dispensing needle 13 refers to the distance between the part of the counterweight 14 that is closest to the dispensing needle 13 and the dispensing needle 13. Reference Figure 1 As shown, in a specific example, the minimum distance is the distance between the surface of the counterweight 141 facing away from the fixing plate 15 and the dispensing needle 13 .

[0063] When performing the glue dispensing operation, the needle head of the glue dispensing needle 13 (that is, the end of the glue dispensing needle 13 away from the main body 12) is in contact with the product to be glued. When the surface of the product is concave, the glue dispensing mechanism 1 uses its own gravity to move the glue dispensing needle 13 downward. When the surface of the product is convex, the convex surface of the product applies a reaction force to the glue dispensing needle 13 to lift the glue dispensing needle 13, thereby fully realizing the glue dispensing needle 13 to adapt to the slight height changes of the product to perform glue dispensing, thereby ensuring that the glue is continuously applied and does not overflow during the glue dispensing process, thereby improving the quality of the glue dispensing operation.

[0064] If the surface of the product to be glued is an ideal flat surface, the needle head of the glue dispensing needle 13 can also be controlled to maintain a fixed distance from the surface of the product, for example, 0.1-0.15 mm.

[0065] In one embodiment, before adjusting the minimum distance between the counterweight 14 and the dispensing needle 13 according to the preset counterweight value of the dispensing needle 13, the dispensing method further includes:

[0066] The installation position and installation angle of the dispensing needle 13 relative to the main body 12 are corrected.

[0067] In this specific example, in order to ensure the stability and accuracy of the dispensing process, the position and angle of the dispensing needle 13 need to be strictly calibrated. For example, the installation position and installation angle of the dispensing needle 13 are calibrated each time a new dispensing needle 13 is replaced; an infrared sensor calibration box can be used to accurately calibrate the installation position and installation angle of the dispensing needle 13.

[0068] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A dispensing mechanism, characterized in that: The dispensing mechanism comprises: A support frame (11), wherein the support frame (11) is fixedly arranged; A main body (12), the main body (12) being rotatably connected to the support frame (11); the main body (12) having a first end and a second end arranged opposite to each other along a first direction; A glue dispensing needle (13), the glue dispensing needle (13) is connected to the main body (12) and is arranged close to the first end thereof; A counterweight (14), wherein the counterweight (14) is disposed near the second end of the main body (12), and the counterweight (14) is at least partially movably connected to the main body (12) and is movable relative to the main body (12) along a first direction, so that the counterweight (14) is at least partially close to or away from the dispensing needle (13).

2. The dispensing mechanism according to claim 1, characterized in that: The counterweight member (14) comprises a counterweight block (141) and a driver (142) which are connected to each other. The counterweight block (141) is slidably connected to the main body (12). The driver (142) can drive the counterweight block (141) to move along a first direction to approach or move away from the dispensing needle (13).

3. The dispensing mechanism according to claim 2, characterized in that: The main body (12) is provided with a sliding groove (120) extending along a first direction, the counterweight block (141) is at least partially disposed in the sliding groove (120), and the counterweight block (141) is connected to the sliding groove (120) in a sliding manner.

4. The dispensing mechanism according to claim 3, characterized in that: A guide groove (1200) extending along a first direction is provided on the side of the sliding groove (120), and a guide platform (1410) is protrudingly provided on the side of the counterweight block (141), and the guide platform (1410) is embedded in the guide groove (1200), and the guide platform (1410) is slidably connected to the guide groove (1200).

5. The dispensing mechanism according to claim 2, characterized in that: The driver (142) comprises a driving body (1421) and a driving shaft (1422) which are connected to each other. The driving body (1421) is fixedly arranged. The driving shaft (1422) is connected to the counterweight (141). The driving shaft (1422) can move relative to the driving body (1421) and drive the counterweight (141) to move along a first direction.

6. The dispensing mechanism according to claim 5, characterized in that: The driving shaft (1422) is threadably connected to the counterweight block (141).

7. The dispensing mechanism according to claim 5, characterized in that: The dispensing mechanism further comprises a fixing plate (15), wherein the fixing plate (15) is connected to the second end of the main body (12), and the driving body (1421) is mounted on the fixing plate (15).

8. The dispensing mechanism according to claim 1, characterized in that: The dispensing mechanism further comprises a limiting member (16), the limiting member (16) being connected to the support frame (11), and the limiting member (16) being arranged in a path in which the main body (12) rotates relative to the support frame (11).

9. A method for dispensing glue using a dispensing mechanism as claimed in any one of claims 1 to 8, characterized in that: The dispensing method comprises: According to a preset counterweight value of the glue dispensing needle (13), adjusting the minimum distance between the counterweight member (14) and the glue dispensing needle (13); The end of the glue dispensing needle (13) away from the main body (12) is brought into contact with the product to be glued and the glue dispensing operation is performed.

10. The dispensing method according to claim 9, characterized in that: Before adjusting the minimum distance between the counterweight member (14) and the glue dispensing needle (13) according to the preset counterweight value of the glue dispensing needle (13), the glue dispensing method further comprises: The installation position and installation angle of the dispensing needle (13) relative to the main body (12) are corrected.

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