Double-shaft universal rotating mechanism of dispensing machine

Abstract

The utility model relates to the technical field of dispensing equipment, and provides a double-shaft universal rotating mechanism of a dispensing machine, which comprises a mounting body, a first rotating shaft and a second rotating shaft, according to the double-shaft universal rotating mechanism, the first rotating shaft can rotate relative to the mounting body, and meanwhile, the second rotating shaft can rotate relative to the first rotating shaft, so that a rubber tube in the dispensing machine can adjust the spatial posture along with the three-dimensional dispensing action of the dispensing valve, and the rubber tube is prevented from being excessively bent and curled; meanwhile, the second rotating shaft and the first rotating shaft are coaxially arranged, so that the double-shaft universal rotating mechanism is small in space size, simple in overall structure and easy to manufacture.

Description

Technical Field

[0001] The utility model relates to the technical field of dispensing equipment, in particular to a biaxial universal rotating mechanism of a dispenser. Background Art

[0002] An automatic dispenser or dispensing robot can automatically achieve three-dimensional positioning and accurately dot, coat, and inject liquid glue into specified positions. In existing automatic dispensers, the common rubber tube pipeline is connected from the glue outlet of the glue bucket to the glue inlet of the dispensing valve. Generally, a fixed joint or a one-way rotating joint is used between the rubber tube and the dispensing valve. When the dispensing valve performs three-dimensional dispensing actions, the rubber tube is prone to excessive bending and curling, which can easily cause fatigue in the structure of the rubber tube and reduce its service life. Summary of the Utility Model

[0003] In view of this, the utility model provides a biaxial universal rotating mechanism of a dispenser, aiming to solve the problem that the rubber tube in the existing dispenser is prone to excessive bending and curling.

[0004] The technical solution of the utility model is realized as follows:

[0005] A biaxial universal rotating mechanism of a dispenser includes:

[0006] An installation body, a first rotating shaft, and a second rotating shaft;

[0007] The installation body is provided with a connection part for connecting the dispensing valve. The interior of the installation body is provided with a first glue delivery channel. One end of the first glue delivery channel communicates with the connection part. The installation body is also provided with a hinge part. The outer wall of the hinge part forms a circumferential mating surface. The circumferential mating surface is provided with at least one glue passing hole, and the glue passing hole communicates with the first glue delivery channel;

[0008] A first installation hole is formed on the first rotating shaft. The hinge part of the installation body is sleeved in the first installation hole. A first annular groove is recessed in the inner wall of the first installation hole, and the position of the first annular groove corresponds to the glue passing hole; A second installation hole perpendicular to and communicating with the first installation hole is also provided in the first rotating shaft;

[0009] A second glue delivery channel axially penetrating through is provided in the second rotating shaft. One end of the second rotating shaft is rotatably connected to the second installation hole.

[0010] In a further optional solution, a second annular groove is also recessed along the outer circumference of the circumferential mating surface of the hinge part. One end of the glue passing hole communicates with the first glue delivery channel, and the other end of the glue passing hole communicates with the second annular groove.

[0011] As a further alternative, two first mounting grooves are provided on the hinge portion on both sides of the second annular groove, and first sealing rings are provided in the first mounting grooves.

[0012] As a further alternative, a first positioning shoulder is provided on the mounting body between the hinge portion and the connecting portion, a first positioning groove is provided on the side of the hinge portion away from the first positioning shoulder, and a first circlip is clamped in the first positioning groove; the first rotating shaft is arranged between the first positioning shoulder and the first circlip.

[0013] As a further alternative, a second mounting groove is recessed in the outer peripheral wall of the portion of the second rotating shaft inserted into the second mounting hole, a second sealing ring is provided in the second mounting groove, and the second sealing ring is in sealing contact with the inner wall of the second mounting hole.

[0014] As a further alternative, a bearing is provided on the second rotating shaft, the inner ring of the bearing is in interference fit with the outer wall of the second rotating shaft, the outer ring of the bearing is in transition fit with the inner wall of the second mounting hole, and there is a clearance of 0.02 - 0.06 mm between the outer ring of the bearing and the inner wall of the second mounting hole.

[0015] As a further alternative, a second positioning shoulder is provided on the second rotating shaft, and a second positioning groove is provided on the second rotating shaft, a second circlip is provided in the second positioning groove, and the bearing is arranged between the second positioning shoulder and the second circlip.

[0016] As a further alternative, the second mounting hole sequentially includes a first hole section, a second hole section and a third hole section from inside to outside, the diameter of the first hole section is smaller than that of the second hole section, the diameter of the second hole section is smaller than that of the third hole section, a third positioning groove is recessed in the inner wall of the third hole section, and a third circlip is provided in the third positioning groove; the second sealing ring is sealingly connected to the inner wall of the first hole section, the second circlip is located in the second hole section, the bearing is located in the third hole section, and one end of the bearing abuts against the third circlip, and the other end of the bearing abuts against the end wall of the third hole section close to the second hole section; a mounting and dismounting space is formed between the inner wall of the third hole section and the outer wall of the second rotating shaft.

[0017] The double - axis universal rotating mechanism of the dispensing machine of the present application has at least the following beneficial effects compared with the prior art:

[0018] In the biaxial universal rotating mechanism, the first rotating shaft can rotate relative to the mounting body, and at the same time, the second rotating shaft can rotate relative to the first rotating shaft, enabling the rubber tube in the dispenser to adjust its spatial posture along with the three-dimensional dispensing action of the dispensing valve, avoiding excessive bending and curling of the rubber tube. At the same time, the second rotating shaft is coaxially arranged with the first rotating shaft, making the spatial volume of the biaxial universal rotating mechanism smaller, the overall structure simple, and easy to manufacture. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Structural schematic diagram of a biaxial universal rotating mechanism of a dispenser according to an embodiment of the present invention connected to a dispensing valve;

[0021] Figure 2 Explosion schematic diagram of a biaxial universal rotating mechanism of a dispenser according to an embodiment of the present invention;

[0022] Figure 3 Explosion sectional view of the mounting body, the first rotating shaft, and the second rotating shaft according to an embodiment of the present invention.

[0023] In the figure: 100, dispensing valve;

[0024] 1, mounting body; 11, connecting part; 12, first glue conveying channel; 13, hinged part; 14, glue passing hole; 15, second annular groove; 16, first mounting groove; 17, first sealing ring; 18, first positioning shoulder; 19, first positioning groove; 2, first rotating shaft; 21, first mounting hole; 22, first annular groove; 23, second mounting hole; 231, first hole section; 232, second hole section; 233, third hole section; 2331, third positioning groove; 3, second rotating shaft; 31, second glue conveying channel; 32, second mounting groove; 33, second sealing ring; 34, second positioning shoulder; 35, second positioning groove; 4, first snap ring; 5, bearing; 6, second snap ring; 7, third snap ring; 8, installation and disassembly space. Detailed Embodiment

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0027] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] Reference Figures 1-3 , an embodiment of the present utility model shows a double-axis universal rotating mechanism of a dispensing machine, including a mounting body 1, a first rotating shaft 2, and a second rotating shaft 3;

[0029] The mounting body 1 is provided with a connecting portion 11 for connecting a dispensing valve 100. The interior of the mounting body 1 is provided with a first glue delivery channel 12. One end of the first glue delivery channel 12 communicates with the connecting portion 11. The mounting body 1 is further provided with a hinge portion 13. The outer wall of the hinge portion 13 forms a circumferential mating surface. The circumferential mating surface is provided with at least one glue passing hole 14, and the glue passing hole 14 communicates with the first glue delivery channel 12; a first mounting hole 21 is formed on the first rotating shaft 2. The hinge portion 13 of the mounting body 1 is sleeved in the first mounting hole 21. The inner wall of the first mounting hole 21 is recessed with a first annular groove 22, and the position of the first annular groove 22 corresponds to the glue passing hole 14; a second mounting hole 23 perpendicular to and communicating with the first mounting hole 21 is further provided inside the first rotating shaft 2; a second glue delivery channel 31 axially penetrating through is provided inside the second rotating shaft 3, and one end of the second rotating shaft 3 is rotatably connected to the second mounting hole 23.

[0030] Specifically, the connecting portion 11 of the mounting body 1 is fixedly connected to the dispensing valve 100. The axis of the hinged portion 13 of the mounting body 1 is perpendicular to the axis of the first rotating shaft 2, and the first rotating shaft 2 can rotate around the hinged portion 13. The second rotating shaft 3 is coaxially arranged with the first rotating shaft 2, and one end of the second rotating shaft 3 is inserted into the mounting hole of the first rotating shaft 2, and the other end of the second rotating shaft 3 is used to connect the rubber tube; refer to Figure 2 , when the dispensing machine is working, the glue paste in the rubber tube sequentially enters the dispensing valve 100 through the second glue conveying channel 31, the glue passing hole 14, and the first glue conveying channel 12. When the dispensing valve 100 performs three-dimensional dispensing actions, the rubber tube can adjust its spatial attitude through the first rotating shaft 2 and the second rotating shaft 3 to avoid excessive bending and curling.

[0031] Among them, the first annular groove 22 can form a glue inlet space between the outer wall of the hinged portion 13 and the inner wall of the first mounting hole 21. After the glue paste enters the first annular groove 22, it then enters the dispensing hole. Preferably, there are 3-6 dispensing holes, and the multiple dispensing holes are arranged at intervals in the circumferential direction. In this way, no matter what angular position the first rotating shaft 2 rotates to on the hinged portion 13, the glue paste can smoothly enter the glue passing hole 14.

[0032] In some embodiments, to improve the efficiency of the glue paste entering the glue passing hole 14, as Figure 2 and Figure 3 shown, a second annular groove 15 recessed along its outer circumference is further provided on the circumferential mating surface of the hinged portion 13. One end of the glue passing hole 14 communicates with the first glue conveying channel 12, and the other end of the glue passing hole 14 communicates with the second annular groove 15. In this way, the first annular groove 22 and the second annular groove 15 together form the glue inlet space between the outer wall of the hinged portion 13 and the inner wall of the first mounting hole 21, making the glue inlet space larger and improving the glue paste flow rate and the glue inlet efficiency.

[0033] Specifically for the above solution, to ensure that the glue paste does not leak from the gap between the first rotating shaft 2 and the hinged portion 13, as Figure 2 and Figure 3 shown, two first mounting grooves 16 are provided on the hinged portion 13 on both sides of the second annular groove 15, and first sealing rings 17 are provided in the first mounting grooves 16. In this way, a seal is formed between the inner wall of the first mounting hole 21 and the outer wall of the hinged portion 13 through the first sealing rings 17, ensuring that the glue paste output by the second glue conveying channel 31 can only enter the glue passing hole 14.

[0034] Specifically for the above solution, to facilitate the installation of the first rotating shaft 2, as Figure 2 and Figure 3As shown, a first positioning shoulder 18 is provided on the mounting body 1 between the hinge portion 13 and the connecting portion 11. On one side of the hinge portion 13 away from the first positioning shoulder 18, a first positioning groove 19 is provided, and a first circlip 4 is clamped in the first positioning groove 19; the first rotating shaft 2 is arranged between the first positioning shoulder 18 and the first circlip 4. In this way, the installation and disassembly of the first rotating shaft 2 are simple and fast. Only by expanding the first circlip 4 can the first rotating shaft 2 be removed, which is convenient for maintenance.

[0035] Specifically, in the above solution, to ensure that the gap between the first rotating shaft 2 and the second rotating shaft 3 does not leak the slurry, as Figure 2 and Figure 3 shown, on the outer peripheral wall of the part of the second rotating shaft 3 inserted into the second mounting hole 23, a second mounting groove 32 is recessed, and a second sealing ring 33 is arranged in the second mounting groove 32. The second sealing ring 33 is in sealing contact with the inner wall of the second mounting hole 23.

[0036] In some embodiments, to improve the rotation smoothness between the first rotating shaft 2 and the second rotating shaft 3, as Figure 2 and Figure 3 shown, a bearing 5 is arranged on the second rotating shaft 3, and the friction between the first rotating shaft 2 and the second rotating shaft 3 is reduced through the bearing 5; in this embodiment, the inner ring of the bearing 5 and the outer wall of the second rotating shaft 3 are in interference fit, and the outer ring of the bearing 5 and the inner wall of the second mounting hole 23 are in transition fit. There is a clearance of 0.02 - 0.06 mm between the outer ring of the bearing 5 and the inner wall of the second mounting hole 23. In this way, the bearing 5 is fastened on the second rotating shaft 3 but can be removed from the second mounting hole 23.

[0037] Specifically, in the above solution, a second positioning shoulder 34 is provided on the second rotating shaft 3, and a second positioning groove 35 is provided on the second rotating shaft 3. A second circlip 6 is arranged in the second positioning groove 35, and the bearing 5 is arranged between the second positioning shoulder 34 and the second circlip 6. In this way, the second positioning shoulder 34 and the second circlip 6 further ensure that the bearing 5 is firmly installed on the second rotating shaft 3 and prevent the bearing 5 from displacing on the second rotating shaft 3.

[0038] Specifically, in the above solution, as Figure 2 and Figure 3As shown, the second mounting hole 23 includes a first hole section 231, a second hole section 232 and a third hole section 233 from the inside to the outside, the diameter of the first hole section 231 is smaller than that of the second hole section 232, the diameter of the second hole section 232 is smaller than that of the third hole section 233, the inner wall of the third hole section 233 is recessed with a third positioning groove 2331, and a third retaining spring 7 is provided in the third positioning groove 2331; the second sealing ring 33 is sealed and connected to the inner wall of the first hole section 231 of Susou, the second retaining spring 6 is located in the second hole section 232, the bearing 5 is located in the third hole section 233, and one end of the bearing 5 abuts against the third retaining spring 7, and the other end of the bearing 5 abuts against the end wall of the third hole section 233 close to the second hole section 232; an assembly and disassembly space 8 is formed between the inner wall of the third hole section 233 and the outer wall of the second rotating shaft 3.

[0039] The third hole section 233, which is close to the end wall of the second hole section 232, and the third retaining spring 7 can secure the position of the bearing 5 within the second mounting hole 23, thereby indirectly securing the second rotating shaft 3 within the second mounting hole 23 and preventing the second rotating shaft 3 from loosening and disengaging from the second mounting hole 23. When the second rotating shaft 3 needs to be removed, a tool can be inserted through the installation and removal space 8 to deform and reduce the third retaining spring 7 so that it disengages from the third positioning groove 2331. The second rotating shaft 3 and the bearing 5 can then be withdrawn from the second mounting hole 23 together, facilitating repair and maintenance.

[0040] To sum up, the utility model provides a dual-axis universal rotation mechanism for a dispensing machine, in which the first rotating axis 2 can rotate relative to the mounting body 1, and the second rotating axis 3 can rotate relative to the first rotating axis 2, so that the hose in the dispensing machine can adjust its spatial posture along with the three-dimensional dispensing action of the dispensing valve 100, avoiding excessive bending and curling of the hose; at the same time, the second rotating axis 3 is coaxially arranged with the first rotating axis 2, so that the spatial volume of the dual-axis universal rotation mechanism is small, the overall structure is simple, and it is easy to manufacture.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dual-axis universal rotating mechanism of a dispensing machine, characterized in that, Including: An installation body, a first rotating shaft, and a second rotating shaft; The installation body is provided with a connecting portion for connecting a dispensing valve. The interior of the installation body is provided with a first glue conveying channel. One end of the first glue conveying channel communicates with the connecting portion. The installation body is further provided with a hinged portion. The outer wall of the hinged portion forms a circumferential mating surface. The circumferential mating surface is provided with at least one glue passing hole, and the glue passing hole communicates with the first glue conveying channel. A first mounting hole is formed in the first rotating shaft, and the hinged portion of the installation body is sleeved in the first mounting hole. The inner wall of the first mounting hole is recessed with a first annular groove, and the position of the first annular groove corresponds to that of the glue passing hole. A second mounting hole perpendicular to and communicating with the first mounting hole is further provided in the first rotating shaft; A second glue conveying channel axially penetrating through is provided in the second rotating shaft, and one end of the second rotating shaft is rotatably connected to the second mounting hole.

2. The double-axis universal rotating mechanism of the dispensing machine according to claim 1, wherein, A second annular groove is further recessed along the outer periphery of the circumferential mating surface of the hinged portion. One end of the glue passing hole communicates with the first glue conveying channel, and the other end of the glue passing hole communicates with the second annular groove.

3. The double-axis universal rotating mechanism of the dispensing machine according to claim 2, characterized in that, Two first mounting grooves are provided on the hinged portion on both sides of the second annular groove, and first sealing rings are provided in the first mounting grooves.

4. The double-axis universal rotating mechanism of the dispensing machine according to claim 3, characterized in that, The installation body is provided with a first positioning shoulder between the hinged portion and the connecting portion. A first positioning groove is provided on the side of the hinged portion away from the first positioning shoulder, and a first circlip is clamped in the first positioning groove. The first rotating shaft is arranged between the first positioning shoulder and the first circlip.

5. The dual-axis universal rotation mechanism of the dispensing machine according to any one of claims 1-4, characterized in that A second mounting groove is recessed on the outer peripheral wall of the portion of the second rotating shaft inserted into the second mounting hole, and a second sealing ring is provided in the second mounting groove. The second sealing ring is in sealing contact with the inner wall of the second mounting hole.

6. The double-axis universal rotating mechanism of the dispensing machine according to claim 5, characterized in that, A bearing is provided on the second rotating shaft. The inner ring of the bearing is in interference fit with the outer wall of the second rotating shaft, and the outer ring of the bearing is in transition fit with the inner wall of the second mounting hole. A clearance of 0.02 - 0.06 mm is provided between the outer ring of the bearing and the inner wall of the second mounting hole.

7. The double-axis universal rotation mechanism of the dispensing machine according to claim 6, characterized in that The second rotating shaft is provided with a second positioning shoulder, and a second positioning groove is provided on the second rotating shaft. A second circlip is provided in the second positioning groove, and the bearing is arranged between the second positioning shoulder and the second circlip.

8. The biaxial universal rotating mechanism of the dispensing machine according to claim 7, characterized in that, The second mounting hole sequentially includes a first hole section, a second hole section, and a third hole section from the inside to the outside. The diameter of the first hole section is smaller than that of the second hole section, and the diameter of the second hole section is smaller than that of the third hole section. A third positioning groove is recessed on the inner wall of the third hole section, and a third circlip is provided in the third positioning groove. The second sealing ring is in sealing connection with the inner wall of the first hole section. The second circlip is located in the second hole section. The bearing is located in the third hole section, and one end of the bearing abuts against the third circlip, and the other end of the bearing abuts against the end wall of the third hole section close to the second hole section. A mounting and dismounting space is formed between the inner wall of the third hole section and the outer wall of the second rotating shaft.

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