Rotary dispensing equipment

Abstract

The utility model provides rotary dispensing equipment. The rotary dispensing equipment comprises a glue barrel; the flow guide assembly comprises a first flow guide part, a second flow guide part and a bent nozzle, one end of the first flow guide part is provided with a first glue inlet used for receiving glue liquid in the glue barrel, the other end of the first flow guide part is provided with a first glue outlet, one end of the second flow guide part is provided with a second glue inlet in butt joint with the first glue outlet, and the other end of the second flow guide part is provided with a second glue outlet connected with the bent nozzle; the dispensing valve assembly comprises a valve body and a firing pin, the firing pin penetrates through the first glue outlet and the second glue inlet to extend into the second flow guide part, and the valve body drives the firing pin to move in the axial direction to be close to or away from the bent nozzle; the rotary driving assembly comprises a driving motor and a hollow rotating platform, the second flow guide part is connected with the hollow rotating platform, the driving motor drives the hollow rotating platform, the hollow rotating platform drives the second flow guide part to rotate around the axis of the firing pin, and therefore the bending nozzle is driven to rotate and change the spraying direction, and the angle of a workpiece does not need to be repeatedly adjusted for dispensing; and the glue path is uniform.

Description

Technical Field

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

[0002] The nozzles of existing piezoelectric valve dispensing equipment are fixed, which is only convenient for dispensing on the upper surface of some workpieces. However, when it is necessary to dispense adhesive on the inner wall of some workpieces (such as bearings and bottle caps) or to dispense adhesive on some workpieces with continuous inclined surfaces, the workpiece angle must be repeatedly adjusted, which results in low efficiency and uneven adhesive coverage.

[0003] Therefore, there is a need for a rotary dispensing device that eliminates the need to repeatedly adjust the workpiece angle when using a foot pad. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a rotary dispensing device that does not require repeated adjustment of the workpiece angle when using a foot pad.

[0005] According to the embodiments of this utility model, the first embodiment is provided as: a rotary dispensing device, comprising:

[0006] Glue tube;

[0007] The flow guiding assembly includes a first flow guiding member, a second flow guiding member, and a bent nozzle. One end of the first flow guiding member is provided with a first glue inlet for receiving glue liquid in the glue tube, and the other end is provided with a first glue outlet. One end of the second flow guiding member is provided with a second glue inlet that is connected to the first glue outlet, and the other end is provided with a second glue outlet that is connected to the bent nozzle.

[0008] A dispensing valve assembly includes a valve body and a striker, the striker passing through a first dispensing port and a second dispensing port to extend into a second flow guide, the valve body driving the striker to move axially toward or away from the bent nozzle; and

[0009] The rotary drive assembly includes a drive motor and a hollow rotary platform. The second flow guide is connected to the hollow rotary platform. The drive motor drives the hollow rotary platform, causing the hollow rotary platform to drive the second flow guide to rotate around the axis of the impact pin, thereby driving the bent nozzle to rotate and change the spray direction.

[0010] In a preferred embodiment, the first guide member includes a first connecting cylinder with the first glue inlet, a second connecting cylinder with the first glue outlet, and a main body connecting the first connecting cylinder and the second connecting cylinder; the main body has a needle inlet on the side opposite to the second connecting cylinder for inserting the firing pin.

[0011] In a preferred embodiment, the first flow guide and the valve body are magnetically connected, wherein the main body is provided with a support protrusion supporting the valve body and a first mounting groove for mounting the magnetic component located between the support protrusions, and the valve body is provided with a second mounting groove for mounting the magnetic component.

[0012] In a preferred embodiment, the rotary dispensing device further includes a connector, one end of which is detachably connected to the dispensing end of the glue cartridge, and the other end of which is detachably connected to the inner circumference of the first connecting cylinder. The connector is provided with a first connecting channel for the glue liquid to flow from the glue cartridge to the first connecting cylinder.

[0013] In a preferred embodiment, the glue tube has a glue outlet and a third connecting tube at one end. The third connecting tube is located on the outer periphery of the glue outlet. When one end of the connector is threadedly connected to the inner periphery of the third connecting tube, the glue outlet is inserted into the first connecting channel.

[0014] In a preferred embodiment, the main body is provided with a second connecting channel, which includes a first end and a second end opposite to each other. The first end is connected to the first glue inlet, and the second end is connected to the first glue outlet. The direction from the first end to the second end is referred to as the first direction. The main body is provided with a rinsing opening along the first direction. The rinsing opening is directly opposite the second connecting channel and is connected to the first end. The rinsing opening is provided with a removable seal.

[0015] In a preferred embodiment, the axial direction of the first connecting cylinder is parallel to the axial direction of the second connecting cylinder, and both the axial directions of the first connecting cylinder and the second connecting cylinder are perpendicular to the first direction.

[0016] In a preferred embodiment, the second guide includes a fourth connecting cylinder with a second glue inlet and a fifth connecting cylinder with a second glue outlet and the bent nozzle installed thereon. The second connecting cylinder is inserted into the inner circumference of the fourth connecting cylinder, and the outer circumference of the second connecting cylinder is provided with an annular groove, in which a sealing ring is provided.

[0017] In a preferred embodiment, the second guide includes a fourth connecting cylinder with a second glue inlet, the second connecting cylinder being inserted into the inner circumference of the fourth connecting cylinder, and the inner wall of the fourth connecting cylinder gradually shrinks along the direction in which the second connecting cylinder is inserted into the fourth connecting cylinder.

[0018] In a preferred embodiment, the hollow rotating platform includes a fixed base and a turntable. The fixed base is detachably connected to the first flow guide. A slotted photoelectric sensor is provided on the fixed base. The second flow guide is detachably connected to the turntable. A sensing plate is provided on the side wall of the turntable. When the turntable drives the second flow guide to rotate, it drives the sensing plate to pass through the sensing range of the slotted photoelectric sensor.

[0019] This utility model has the following beneficial effects:

[0020] The hollow rotating platform can be driven by a drive motor, which in turn drives the second guide component and the bending nozzle to rotate. This allows for convenient dispensing of adhesive onto the annular inner wall or inclined surface of some workpieces. During dispensing, there is no need to repeatedly adjust the angle of the workpiece, which can improve the dispensing efficiency and make the adhesive path coverage more uniform. Attached Figure Description

[0021] Figure 1 This is a perspective view of a rotary dispensing device according to an embodiment of the present invention;

[0022] Figure 2 This is a cross-sectional view of a rotary dispensing device according to an embodiment of the present invention;

[0023] Figure 3 for Figure 2 Enlarged view of point a in the middle;

[0024] Figure 4 for Figure 3 Enlarged view of point b in the middle;

[0025] Figure 5 This is an exploded view of the rotary dispensing device according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the first flow guide member from two perspectives according to an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the bottom structure of the valve body according to an embodiment of the present invention;

[0028] Figure 8 This is a perspective view of a rotary dispensing device according to an embodiment of the present invention.

[0029] Reference numerals: 10, glue tube; 11, glue nozzle; 12, third connecting tube; 21, first guide; 211, first connecting tube; 2111, first glue inlet; 212, second connecting tube; 2121, first glue outlet; 2122, annular groove; 2123, sealing ring; 213, main body; 2131, needle inlet; 2132, support protrusion; 2133, first mounting groove; 2134, second connecting channel; 2135, flushing opening; 2136, sealing element; 2137, annular support; 2138 1. Limiting groove; 22. Second guide component; 221. Fourth connecting cylinder; 2211. Second glue inlet; 222. Fifth connecting cylinder; 223. Disc part; 2221. Second glue outlet; 23. Bending nozzle; 24. Connector; 241. First connecting channel; 31. Valve body; 311. Second mounting groove; 32. Impact pin; 41. Drive motor; 42. Hollow rotating platform; 421. Fixed base; 422. Turntable; 423. Slotted photoelectric sensor; 424. Sensing plate; 50. Ring frame; F1. First direction; Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0032] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component 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 application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0034] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0035] Please refer to Figures 1 to 8 This utility model provides a rotary dispensing device, which includes: a glue cartridge 10, a flow guiding component, a dispensing valve component, and a rotary drive component. The flow guiding component is used to transport the glue flowing from the glue cartridge 10, the dispensing valve component is used to control the dispensing, and the rotary drive component is used to control the dispensing angle.

[0036] For specific details, please refer to Figures 2-4 as well as Figure 6 The flow guiding assembly includes a first flow guiding member 21, a second flow guiding member 22, and a bent nozzle 23. After the adhesive flows out of the glue cartridge 10, it passes sequentially through the first flow guiding member 21 and the second flow guiding member 22, and finally exits from the bent nozzle 23. One end of the first flow guiding member 21 has a first glue inlet 2111 for receiving the adhesive from the glue cartridge 10, and the other end has a first glue outlet 2121. One end of the second flow guiding member 22 has a second glue inlet 2211, which connects to the first glue outlet 2121 to receive the adhesive flowing out of the first flow guiding member 21. The other end of the second flow guiding member 22 has a second glue outlet 2221, which connects to the bent nozzle 23 so that the adhesive can flow into the bent nozzle 23. The bent nozzle 23 differs from a traditional straight-down spray nozzle; see reference [reference needed]. Figure 3 The bent nozzle 23 includes a vertically downward connecting part and a bent part located at the bottom of the connecting part. The bent part is bent at a certain angle relative to the connecting part. The adhesive is sprayed out from the bent part, which is suitable for dispensing adhesive to inclined surfaces and annular inner walls. The bent part of the bent nozzle 23 can reduce the influence of centrifugal force on the adhesive when rotating at high speed, making the output amount of adhesive more stable.

[0037] Specifically, the dispensing valve assembly includes a valve body 31 and a striker 32. The striker 32 passes through the first dispensing port 2121 and the second dispensing port 2211 to extend into the second guide member 22. The valve body 31 drives the striker 32 to move axially towards or away from the bent nozzle 23 to control the opening and closing of the dispensing action. When the striker 32 moves upward along its axial direction and separates from the nozzle 23, the dispensing channel is opened; when the striker 32 moves downward along its axial direction and abuts against the nozzle 23, the dispensing channel is closed. Preferably, the valve body 31 is a piezoelectric valve.

[0038] Specifically, the rotary drive assembly includes a drive motor 41 and a hollow rotary platform 42. The second guide member 22 is connected to the hollow rotary platform 42. The drive motor 41 drives the hollow rotary platform 42, causing the hollow rotary platform 42 to drive the second guide member 22 to rotate around the axis of the impact pin 32, thereby driving the bent nozzle 23 to rotate and change the spray direction.

[0039] It is understandable that the hollow rotary platform 42 is a relatively mature existing technology, and the appropriate model can be selected according to actual needs during application. Preferably, the drive motor 41 is a servo motor. The hollow rotary platform 42 is a rotary load device that combines the advantages of servo motors, cam dividers, and direct drive motors. It uses a high-precision gear structure and radial bearings, which improves torque and rigidity, making the load-bearing capacity more stable. When paired with a servo motor or stepper motor, it can perform arbitrary angle division, and the positioning accuracy is comparable to that of a direct drive motor, enabling the positioning of inertial loads in a short time.

[0040] Understandably, unlike traditional dispensing valves, in this embodiment, the ejector pin 32 is a specially designed extended version because it needs to pass through the first guide member 21 and the second guide member 22.

[0041] In this embodiment, the hollow rotating platform 42 can be driven by the drive motor 41, thereby driving the second guide component 22 and the bending nozzle 23 to rotate. This makes it convenient to apply glue to the annular inner wall or inclined surface of some workpieces. There is no need to repeatedly adjust the workpiece angle during glue application, which can improve the glue application efficiency and make the glue path coverage more uniform.

[0042] In a preferred embodiment, reference may be made to Figure 3 , Figure 4 and Figure 6The first guide member 21 includes a first connecting cylinder 211, a second connecting cylinder 212, and a main body 213. A first glue inlet 2111 is located on the first connecting cylinder 211, and a first glue outlet 2121 is located on the second connecting cylinder 212. The first connecting cylinder 211 and the second connecting cylinder 212 are respectively connected to opposite sides of the main body 213, and the first connecting cylinder 211 and the second connecting cylinder 212 are designed to be offset, meaning their axes do not coincide. To facilitate the passage of the impact pin 32 through the first guide member 21, the main body 213 has a needle inlet 2131 on the side opposite to the second connecting cylinder 212. The needle inlet 2131 is directly opposite the first glue outlet 2121, allowing the impact pin 32 to extend into and out of the first guide member 21.

[0043] It is easy to understand that, since the first guide member 21 has at least three channels extending in the interior, when the first guide member 21 is set to be non-removable or inconvenient to disassemble, the adhesive residue inside the first guide member 21 is inconvenient to clean and easily blocks the channels.

[0044] In a preferred embodiment, to facilitate the disassembly and connection of the first flow guide 21 and the valve body 31, the first flow guide 21 and the valve body 31 are magnetically connected by a magnetic attractor. (See reference...) Figure 6 and Figure 7 The main body 213 has a support protrusion 2132 and a first mounting groove 2133 on the side where the first connecting cylinder 211 is located. The support protrusion 2132 supports the bottom of the valve body 31. The first mounting groove 2133 is located between the support protrusions 2132 and can be used to install magnetic components. The bottom of the valve body 31 has a second mounting groove 311, which can also be used to install magnetic components. The magnetic components in the first mounting groove 2133 and the magnetic components in the second mounting groove 311 can be magnetically attracted to each other. The positions of the first mounting groove 2133 and the second mounting groove 311 are corresponding, and there can be multiple grooves, which can be selected according to actual needs.

[0045] Preferably, the first mounting groove 2133 and the second mounting groove 311 are provided in two sets. The main body 213 is also provided with an annular support 2137 on the side where the first connecting cylinder 211 is provided. The annular support 2137 is located on the outer periphery of the needle inlet 2131. When the support protrusion 2132 supports the bottom of the valve body 31, the annular support 2137 can also support the bottom of the valve body 31. The annular support 2137 is provided with a limiting groove 2138 in the part connected to the two adjacent support protrusions 2132. When the magnetic suction component is installed in the first mounting groove 2133, the limiting groove 2138 can cooperate to play the role of limiting and positioning.

[0046] In a preferred embodiment, the rotary dispensing device further includes a connector 24, one end of which is detachably connected to the dispensing end of the glue cartridge 10, and the other end of which is detachably connected to the inner circumference of the first connecting cylinder 211. The connector 24 has a first connecting channel 241 for the glue liquid to flow from the glue cartridge 10 to the first connecting cylinder 211. Specifically, refer to... Figure 2 and Figure 3 The glue tube 10 has a glue outlet 11 and a third connecting tube 12 at one end. The third connecting tube 12 is located on the outer periphery of the glue outlet 11. The glue outlet 11 can be directly inserted into the third connecting tube 12. One end of the connector 24 is provided with an external thread, and the inner periphery of the third connecting tube 12 is provided with an internal thread that mates with the external thread. The connector 24 can be threadedly connected to the third connecting tube 12 by rotation. When the outer periphery of the connector 24 is threadedly connected to the inner periphery of the third connecting tube 12, the glue outlet 11 is inserted into the first connecting channel 241.

[0047] In this embodiment, when connecting the connector 24 and the glue cylinder 10, the dispensing nozzle 11 can be aligned with the first connecting channel 241 first, and then the connector 24 or the glue cylinder 10 can be rotated, making installation relatively convenient. When connecting the connector 24 and the first guide member 21, the dispensing nozzle 11 can be directly inserted into the third connecting cylinder 12, making installation relatively convenient as well. The connector 24 and the glue cylinder 10, as well as the connecting cylinder and the first guide member 21, are both detachable, and installation and disassembly are relatively convenient, thus facilitating the replacement of the glue cylinder 10 and making it easy to disassemble the connector 24 and the first guide member 21 for cleaning the internal flow channels.

[0048] In a preferred embodiment, reference may be made to Figure 3 The main body 213 has a second connecting channel 2134 inside. The second connecting channel 2134 includes a first end and a second end opposite to each other. The first end is connected to the first glue inlet 2111, and the second end is connected to the first glue outlet 2121. The direction from the first end to the second end is denoted as the first direction F1. The main body 213 has a rinsing opening 2135 along the first direction F1, which can be combined with... Figure 6 The flushing opening 2135 is directly opposite the second connecting channel 2134 and is connected to the first end. The flushing opening 2135 is provided with a removable seal 2136.

[0049] In this embodiment, during normal dispensing operations, the seal 2136 can be sealed and installed on the flushing opening 2135. When the first guide member 21 is removed, the seal 2136 can be removed from the flushing opening 2135, and the residual adhesive inside the first guide member 21 can be easily cleaned through the flushing opening 2135.

[0050] Preferably, further reference can be made. Figure 3 and combined Figure 4and Figure 6 The axial direction of the first connecting cylinder 211 is parallel to the axial direction of the second connecting cylinder 212, and the axial directions of both the first connecting cylinder 211 and the second connecting cylinder 212 are perpendicular to the first direction F1.

[0051] In a preferred embodiment, reference may be made to Figure 5 The second guide member 22 includes a fourth connecting cylinder 221, a fifth connecting cylinder 222, and a disc portion 223. The fourth connecting cylinder 221 and the fifth connecting cylinder 222 are respectively connected to opposite sides of the disc portion 223. In order to facilitate the insertion of the firing pin 32, the axis of the fourth connecting cylinder 221 coincides with the axis of the fifth connecting cylinder 222. The second glue inlet 2211 is provided on the fourth connecting cylinder 221, the second glue outlet 2221 is provided on the fifth connecting cylinder 222, and the bending nozzle 23 is installed on the fifth connecting cylinder 222. The second connecting cylinder 212 is inserted into the inner circumference of the fourth connecting cylinder 221.

[0052] Preferably, refer to Figure 4 The second connecting cylinder 212 has an annular groove 2122 on its outer periphery, and a sealing ring 2123 is provided in the annular groove 2122. Since the second connecting cylinder 212 and the fourth connecting cylinder 221 can rotate relative to each other, the sealing ring 2123 is preferably made of wear-resistant material, and the sealing ring 2123 can play the role of sealing and preventing glue leakage.

[0053] Preferably, refer to Figure 4 As the second connecting cylinder 212 is inserted into the fourth connecting cylinder 221, the inner wall of the fourth connecting cylinder 221 gradually contracts, which can ensure stable flow of the adhesive.

[0054] In a preferred embodiment, reference may be made to Figure 8 The hollow rotating platform 42 includes a fixed base 421 and a turntable 422. The fixed base 421 is detachably connected to the first flow guide 21. A slotted photoelectric sensor 423 is provided on the fixed base 421. The drive motor 41 can drive the turntable 422 to rotate, thereby driving the second flow guide 22 to rotate. The disc portion 223 on the second flow guide 22 is detachably connected to the turntable 422 on the hollow rotating platform 42, so that the second flow guide 22 can be removed for internal cleaning. For example, the disc portion 223 and the turntable 422 can be connected by fasteners such as screws.

[0055] Preferably, the side wall of the turntable 422 is provided with a sensing plate 424. When the turntable 422 drives the second guide member 22 to rotate, the sensing plate 424 is driven to pass through the sensing range of the slotted photoelectric sensor 423. In this embodiment, the slotted photoelectric sensor 423 can acquire position information once every time the turntable 422 rotates one revolution, thereby improving the accuracy of the glue spraying position.

[0056] In a preferred embodiment, reference may be made to Figure 1, Figure 2 and Figure 5 A mounting bracket is installed on the top of the valve body 31, and an annular frame 50 is provided on the mounting bracket for inserting the rubber sleeve 10. Preferably, the annular frame 50 has an opening, which prevents the annular frame 50 from forming a complete closed loop structure. The opening allows the annular frame 50 to have a certain deformation capability, thereby accommodating rubber sleeves 10 with slight deviations in size.

[0057] Those skilled in the art will be able to implement or use this invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this invention. Therefore, this invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rotary dispensing device, characterized in that, include: Glue tube; The flow guiding assembly includes a first flow guiding member, a second flow guiding member, and a bent nozzle. One end of the first flow guiding member is provided with a first glue inlet for receiving glue liquid in the glue tube, and the other end is provided with a first glue outlet. One end of the second flow guiding member is provided with a second glue inlet that is connected to the first glue outlet, and the other end is provided with a second glue outlet that is connected to the bent nozzle. A dispensing valve assembly includes a valve body and a striker, the striker passing through a first dispensing port and a second dispensing port to extend into a second guide member, and the valve body driving the striker to move axially to approach or move away from the bent nozzle; as well as The rotary drive assembly includes a drive motor and a hollow rotary platform. The second flow guide is connected to the hollow rotary platform. The drive motor drives the hollow rotary platform, causing the hollow rotary platform to drive the second flow guide to rotate around the axis of the impact pin, thereby driving the bent nozzle to rotate and change the spray direction.

2. The rotary dispensing equipment according to claim 1, characterized in that, The first guide component includes a first connecting cylinder with the first glue inlet, a second connecting cylinder with the first glue outlet, and a main body connecting the first connecting cylinder and the second connecting cylinder; the main body has a needle inlet on the side opposite to the second connecting cylinder for the insertion of the firing pin.

3. The rotary dispensing equipment according to claim 2, characterized in that, The first flow guide and the valve body are magnetically connected. The main body is provided with a support protrusion to support the valve body and a first mounting groove for installing the magnetic component located between the support protrusions. The valve body is provided with a second mounting groove for installing the magnetic component.

4. The rotary dispensing device according to claim 2, characterized in that, The rotary dispensing device further includes a connector, one end of which is detachably connected to the dispensing end of the glue cartridge, and the other end of which is detachably connected to the inner circumference of the first connecting cylinder. The connector is provided with a first connecting channel for the glue liquid to flow from the glue cartridge to the first connecting cylinder.

5. The rotary dispensing device according to claim 4, characterized in that, The glue tube has a glue outlet and a third connecting tube at one end. The third connecting tube is located on the outer periphery of the glue outlet. When one end of the connector is threadedly connected to the inner periphery of the third connecting tube, the glue outlet is inserted into the first connecting channel.

6. The rotary dispensing device according to claim 2, characterized in that, The main body is provided with a second connecting channel, which includes a first end and a second end opposite to each other. The first end is connected to the first glue inlet, and the second end is connected to the first glue outlet. The direction from the first end to the second end is referred to as the first direction. The main body is provided with a rinsing opening along the first direction. The rinsing opening is directly opposite the second connecting channel and is connected to the first end. The rinsing opening is provided with a detachable seal.

7. The rotary dispensing device according to claim 6, characterized in that, The axial direction of the first connecting cylinder is parallel to the axial direction of the second connecting cylinder, and both the axial directions of the first connecting cylinder and the second connecting cylinder are perpendicular to the first direction.

8. The rotary dispensing device according to claim 2, characterized in that, The second guide includes a fourth connecting cylinder with the second glue inlet and a fifth connecting cylinder with the second glue outlet and the bent nozzle installed thereon. The second connecting cylinder is inserted into the inner circumference of the fourth connecting cylinder. The outer circumference of the second connecting cylinder is provided with an annular groove and a sealing ring is provided in the annular groove.

9. The rotary dispensing device according to claim 2, characterized in that, The second guide includes a fourth connecting cylinder with a second glue inlet. The second connecting cylinder is inserted into the inner circumference of the fourth connecting cylinder, and the inner wall of the fourth connecting cylinder gradually contracts along the direction in which the second connecting cylinder is inserted into the fourth connecting cylinder.

10. The rotary dispensing device according to claim 1, characterized in that, The hollow rotating platform includes a fixed base and a turntable. The fixed base is detachably connected to the first flow guide. A slotted photoelectric sensor is provided on the fixed base. The second flow guide is detachably connected to the turntable. A sensing plate is provided on the side wall of the turntable. When the turntable drives the second flow guide to rotate, it drives the sensing plate to pass through the sensing range of the slotted photoelectric sensor.

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