TWI840753B - Rotary distribution device and rotary connection mechanism thereof - Google Patents

Abstract

Provided is a rotary connection mechanism including a first chamber with connecting holes and a second chamber locked in the first chamber, so that an air path is formed between the first chamber and the second chamber. The second chamber has first channels for connecting first openings of the second chamber to the air path, and the second chamber also has nozzles projecting outward in the air path and second channels for connecting second openings of the second chamber to the nozzles. Also provided is a rotary distribution device including the rotary connection mechanism.

Description

Rotating distribution device and its rotating connection mechanism

The present disclosure relates to a rotary connection mechanism, and in particular to a rotary connection mechanism that can provide a stable negative pressure.

Currently known electronic components or semiconductor components need to go through steps such as direction identification, connection, electrical parameter testing, surface marking, visual pin detection, and material box processing before being loaded into the carrier. The transportation of components in each stage is mainly achieved by the delivery device. The turntable delivery device is a key equipment in the middle and back-end process of modern electronic manufacturing industry. It has the advantages of fast speed and high delivery efficiency. The rotating connection mechanism is the key component of the turntable delivery device to complete component delivery and placement.

With the rapid development of technology, the packaging form of integrated circuit chips is getting smaller and smaller, and the requirements for the precision and speed of integrated circuit delivery devices are getting higher and higher. The rotary connection mechanism of the existing delivery device cannot effectively provide continuous and stable negative pressure to the suction and extraction components on the working turntable during the rotation process. It can only provide negative pressure when the rotation stops, causing the chip to be offset on the suction and extraction component. The offset chip cannot be accurately positioned when it reaches each station. Therefore, the device has relatively high precision requirements in processing and assembly, resulting in excessive costs.

Therefore, the field urgently needs a rotating connection mechanism that can overcome the above-mentioned problems such as unstable negative pressure and excessively high device cost, and a rotating delivery device using the rotating connection mechanism.

In view of this, the present disclosure provides a low-cost rotary connection mechanism that can continuously maintain a stable negative pressure when rotating or stopping the rotation, which includes a first pod and a second pod, and the second pod is sleeved in the first pod so that an air path is formed between the first surface of the second pod and the shell of the first pod.

In at least one specific embodiment of the present disclosure, the first hull has a connecting hole, and the second hull has a nozzle, a first opening, a second opening, a first channel, and a second channel, wherein the nozzle corresponds to the connecting hole and is disposed on the first surface of the second hull, and the nozzle protrudes in the gas path; the first channel and the second channel are disposed in the second hull, the first channel is configured to connect the first opening with the gas path, and the second channel is configured to connect the second opening with the nozzle.

In at least one specific embodiment of the present disclosure, the second cabin is locked in the first cabin.

In at least one specific embodiment of the present disclosure, the first pod and the second pod have the same rotation axis, and the first pod and the second pod are configured to maintain a constant air pressure in the air path when rotating along the rotation axis.

In at least one specific embodiment of the present disclosure, the second channel includes a horizontal section corresponding to the nozzle and a vertical section corresponding to the second opening.

In at least one specific embodiment of the present disclosure, a gas distribution plate assembly is further included, which includes a top gas distribution plate, wherein the top gas distribution plate is coupled to the second hull in a relatively rotatable manner to seal the second hull.

In at least one specific embodiment of the present disclosure, the top gas distribution plate includes a third channel corresponding to the second channel and a fourth channel corresponding to the first channel.

In at least one specific embodiment of the present disclosure, the top gas distribution plate includes a graphite plate.

In at least one specific embodiment of the present disclosure, a support assembly having a rotating shaft is further included to support the valve plate assembly, and the support assembly includes a support arm and a spring element, wherein the valve plate assembly is tightly connected to the second cabin by the elastic force of the spring element.

In at least one specific embodiment of the present disclosure, the connection holes are arranged around the first hull at equal intervals, and the nozzles are arranged around the first surface of the second hull at equal intervals.

The present disclosure further provides a rotary dispensing device, which includes: the rotary connection mechanism disclosed herein; a working turntable, which is coupled to the rotary connection mechanism; a driving module, which is configured to drive the rotary connection mechanism and the working turntable to rotate; a suction assembly, which is disposed on the working turntable and connected to the rotary connection mechanism through a pipeline; and a negative pressure generating module, which is coupled to the rotary connection mechanism to provide a stable negative pressure to the suction assembly when the driving module is activated or stationary.

In at least one specific embodiment of the present disclosure, the rotary connection mechanism further includes a support assembly having a rotary shaft to support the rotary connection mechanism, the working turntable and the drive module, and the three are sequentially arranged on the rotary shaft.

The rotary connection mechanism disclosed herein can continuously provide a stable negative pressure when rotating or stopping the rotation, so that the suction assembly located on the working turntable and connected to the rotary connection mechanism can firmly hold the component. In addition, the rotary connection mechanism disclosed herein is small in size, low in cost, and has relatively low assembly precision requirements, so it can reduce the impact of assembly and processing precision on actual functions.

1: Rotating distribution device

10: First cabin

11: Top

12: Shell

13: Connection hole

14: Negative pressure air circuit

19: First bearing mouth

20: Second cabin

21: First surface

22: Spray nozzle

23: First channel

24: Groove

25: Sealing element

26: Second surface

27: Second channel

271: Horizontal section

272: Vertical section

281: Second opening

282: First opening

29: Second bearing mouth

30: Valve plate assembly

31: Top air distribution plate

311,321: The third channel

312,322: Fourth channel

313,323,333: The third bearing mouth

32: Bottom air distribution plate

33: Connectors

331: First opening

332: Second opening

40: Support assembly

41: Base plate

411: Support arm

412: Spring element

42: Base

421:Connection part

50: Rotation axis

60: Working turntable

61: Suction and extraction components

611: Tracheal components

612: Nozzle

613: Plug head

614: Connecting element

615: Reset element

70:Drive module

71: Driving motor

72: Press down assembly

Figure 1 is a three-dimensional exploded schematic diagram of the first cabin and the second cabin of one of the specific embodiments of the present disclosure.

Figure 2 is a side cross-sectional schematic diagram of the first pod and the second pod after being nested with each other in one of the specific embodiments of the present disclosure.

FIG3 is a three-dimensional exploded schematic diagram of the gas plate assembly and the support assembly of the rotary connection mechanism of one specific embodiment of the present disclosure.

FIG4 is a schematic side cross-sectional view of the assembly of the valve plate assembly, the support assembly and the rotating shaft of one specific embodiment of the present disclosure.

Figure 5 is a three-dimensional schematic diagram of a rotary dispensing device according to one specific embodiment of the present disclosure.

Figure 6 is a three-dimensional schematic diagram of the working turntable of the rotary dispensing device in one specific embodiment of the present disclosure.

FIG7 is a schematic side cross-sectional view of a rotary dispensing device according to one specific embodiment of the present disclosure.

The following is a specific embodiment to illustrate the implementation of the present disclosure. Those with ordinary knowledge in the technical field to which the present disclosure belongs can easily understand the spirit, advantages and effects of the present disclosure based on the content contained in this article. However, the specific embodiments contained in this article are not used to limit the present disclosure. The present disclosure can also be implemented or applied through other different implementation methods. The details contained in this article can also be given different changes or modifications based on different viewpoints and applications without deviating from the spirit of the present disclosure.

The proportions, structures, sizes and other features shown in the attached figures are only used to match the content disclosed in this article, so that people with ordinary knowledge in the technical field to which this disclosure belongs can read and understand this disclosure, and are not used to limit the scope of implementation of this disclosure. Therefore, any changes in the proportion relationship, modification of the structure, or adjustment of the size should be within the scope of the technical content disclosed in this article without affecting the purpose and effect that can be achieved by this disclosure.

As used herein, approximating language may be used to modify any quantitative expression that may vary within a permissible range without causing a change in the basic function to which it is associated. Thus, a value modified by one or more terms such as "about" is not limited to the exact value specified. In some embodiments, the approximating language may correspond to the precision of the instrument used to measure the value.

When "includes", "comprising" or "having" specific elements are mentioned in this article, unless otherwise stated, other elements, components, structures, regions, parts, devices, systems, steps, connection relationships, etc. may also be included, rather than excluding such other elements.

The spatially relative terms such as “top”, “bottom”, “side”, “inside”, “outside”, “up”, “above”, “down”, “below”, “horizontal” and “vertical” described in this document are only used to facilitate the relative position and relationship between one element or feature and other elements or features in the specific embodiments of the present disclosure, and are not used to limit the scope of the implementation of the present disclosure. The adjustment, exchange and change of the relative position and relationship should be regarded as the scope of the implementation of the present disclosure under the condition that the technical content of the present disclosure is not substantially changed. In addition, the term "horizontal" as used herein means substantially parallel, which includes the case where the angle between two elements, two axes or two planes is between -10 and +10 degrees of 0 degrees, such as -5 to 5 degrees; the term "vertical" as used herein means substantially vertical, which includes the case where the angle between two elements, two axes or two planes is between -10 and +10 degrees of 90 degrees, such as 85 to 95 degrees.

The terms "first" or "second" and other terms with sequential meanings described herein are only used to facilitate the description or distinction of elements, components, structures, regions, parts, devices, systems and other elements, and are not used to limit the scope of implementation of the present disclosure, nor are they used to limit the spatial order of these elements. In addition, unless otherwise expressly stated herein, the singular forms "one" and "the" described herein also include plural forms, and the terms "or" and "and/or" described herein can be used interchangeably.

The numerical ranges described in this article are inclusive and combinable. Any numerical value falling within the numerical range described in this article can be used as the maximum or minimum value to derive a sub-range; for example, the numerical range of "0.25mm to 3.75mm" should be understood to include any sub-range between the minimum value of 0.25mm and the maximum value of 3.75mm, such as: 0.25mm to 1mm, 3mm to 3.75mm and 1mm to 3mm.

The term "coupling" herein refers to multiple elements being directly or indirectly connected together mechanically, chemically, electrically, magnetically or a combination of two or more thereof. "Direct coupling" refers to multiple elements being connected together by direct contact, while "indirect coupling" refers to multiple elements being connected together by at least one coupling member. The means of achieving the "coupling" described herein include but are not limited to tightly or gap-connected, hinged, linked, sewn, joined, bonded, embedded, screwed, buckled, nailed, clamped, attached, penetrated, clamped, placed, sleeved, locked, integrally formed or a combination of two or more thereof. The term "coupling member" herein refers to an element that can achieve the above-mentioned "coupling" means.

FIG1 is a three-dimensional exploded schematic diagram of a first capsule 10 and a second capsule 20 of a rotary connection mechanism of one specific embodiment of the present disclosure. As shown in FIG1 , the rotary connection mechanism includes a first capsule 10 and a second capsule 20, wherein the first capsule 10 is configured to be able to sleeve the second capsule 20 therein. In at least one specific embodiment of the present disclosure, the second capsule 20 is sleeved and locked in the first capsule 10, so that there is no relative movement between the first capsule 10 and the second capsule 20.

As shown in FIG. 1 , the first hull 10 has a top surface 11 and a shell 12, wherein the shell 12 of the first hull 10 is provided with a plurality of connection holes 13, and a duct connection element (not shown) can be provided on each connection hole 13, and the second hull 20 has a first surface 21, a plurality of first channels 23, and a plurality of nozzles 22 provided on the first surface 21, and the shape of the nozzle 22 can be, for example, but not limited to, any structure for gas ejection such as a cone or a needle. In at least one specific embodiment of the present disclosure, the plurality of nozzles 22 can be formed on the first surface 21 of the second hull 20 in an integrally formed manner, or can be detachably arranged on the first surface 21 of the second hull 20, but the present disclosure is not limited thereto.

In at least one specific embodiment of the present disclosure, the plurality of connection holes 13 of the first hull 10 are arranged at equal intervals on the shell 12 of the first hull 10, the plurality of nozzles 22 of the second hull 20 are arranged at equal intervals on the first surface 21 of the second hull 20, and the plurality of nozzles 22 are arranged corresponding to the plurality of connection holes 13 respectively.

In addition, in at least one specific embodiment of the present disclosure, a groove 24 surrounding the first surface 21 may be provided on the first surface 21 of the second hull 20 to accommodate a sealing element 25, and the sealing element 25 may be used to reduce the possibility of gas leakage between the first hull 10 and the second hull 20, thereby maintaining the stability of the negative pressure. In some specific embodiments, the sealing element 25 may be a sealing ring, which is sleeved in the groove 24 to increase the airtightness. The material of the sealing ring includes but is not limited to silicone, nitrile rubber (NBR), ethylene propylene diene monomer (EPDM), fluororubber (FKM), perfluorinated rubber (FFKM) or fluorosilicone rubber (FVMQ).

FIG2 is a side cross-sectional schematic diagram of a first pod 10 and a second pod 20 after being sleeved together in one embodiment of the present disclosure. As shown in FIG2, the second pod 20 is sleeved in the first pod 10, and the second surface 26 of the second pod 20 is fitted to the inner side of the shell 12 of the first pod 10 without gap, thereby forming a negative pressure gas path 14 between the shell 12 of the first pod 10 and the first surface 21 of the second pod 20. The negative pressure gas path 14 formed between the first pod 10 and the second pod 20 can be connected to the plurality of first openings 282 at the bottom of the second pod 20 through a plurality of first channels 23 (as shown in FIG1) formed in the second pod 20. In at least one specific embodiment of the present disclosure, the plurality of first openings 282 can be connected to a negative pressure generating module. When the negative pressure generating module is evacuating air, the negative pressure gas circuit 14 is in a negative pressure state.

As shown in FIG2 , the second hull 20 has a plurality of second passages 27 formed therein, which are used to connect the plurality of second openings 281 at the bottom of the second hull 20 to the plurality of nozzles 22, and the plurality of nozzles 22 protrude outward in the negative pressure gas path 14. Therefore, in at least one specific embodiment of the present disclosure, the plurality of nozzles 22 can provide temporary positive pressure to the plurality of connecting holes 13 corresponding to the plurality of nozzles 22 by a positive pressure generating source connected to the plurality of second openings 281, thereby temporarily increasing the negative pressure value of the corresponding plurality of connecting holes 13. In some specific embodiments, the negative pressure values at a plurality of connection holes 13 can be increased by the positive pressure provided by the corresponding nozzles 22, thereby selectively controlling the pressure value of the connection holes 13 to be increased without increasing the pressure at all the connection holes 13 at the same time.

As shown in FIG. 2 , in at least one specific embodiment of the present disclosure, the second passage 27 of the second hull 20 has a horizontal section 271 corresponding to the nozzle 22, and a vertical section 272 corresponding to the second opening 281. In some specific embodiments, the horizontal section 271 of the second passage 27 partially extends horizontally into the nozzle 22, and the opening end of the horizontal section 271 extending into the nozzle 22 is closely matched with the nozzle opening of the nozzle 22; in other words, the outer diameter of the opening end of the horizontal section 271 is approximately equal to the inner diameter of the nozzle opening of the nozzle 22. In some specific embodiments, the open end of the vertical section 272 of the second channel 27 is coupled to the second opening 281 of the second cabin 20, and the other end (non-open end) of the horizontal section 271 of the second channel 27 is vertically coupled to the other end (non-open end) of the vertical section 272. In at least one specific embodiment of the present disclosure, the horizontal section 271 and the vertical section 272 of the second channel 27 can be integrally formed and configured in the second cabin 20, and the second channel 27 has only a vertical corner at the connection between the horizontal section 271 and the vertical section 272.

In at least one specific embodiment of the present disclosure, the diameter of the horizontal section 271 of the second hull 20 may be smaller than the diameter of the vertical section 272 of the second hull 20. In some specific embodiments, the diameters of the horizontal section 271 and the vertical section 272 may correspond to the size of the nozzle port and the second opening 281 of the nozzle 22, respectively, that is, the size of the nozzle port is smaller than the size of the second opening 281, thereby providing a more stable positive pressure at the nozzle 22.

As shown in FIG. 1 and FIG. 2 , the first hull 10 and the second hull 20 also have a first bearing opening 19 and a second bearing opening 29, respectively. In at least one specific embodiment of the present disclosure, the diameter of the first bearing opening 19 of the first hull 10 matches the diameter of the second bearing opening 29 of the second hull 20, and a rotating shaft with matching size is inserted through the first bearing opening 19 and the second bearing opening 29, so that the first hull 10 and the second hull 20 can rotate relative to the rotating shaft on the rotating shaft.

FIG3 is a three-dimensional exploded schematic diagram of a gas distribution plate assembly 30 and a support assembly 40 of a rotary connection mechanism of one specific embodiment of the present disclosure. As shown in FIG3, the gas distribution plate assembly 30 includes a top gas distribution plate 31 and a bottom gas distribution plate 32. In at least one specific embodiment of the present disclosure, the top gas distribution plate 31 is in contact with the second cabin 20 (for example, as shown in FIG7) to support the rotation of the first cabin 10 and the second cabin 20 and increase the vacuum degree of the first cabin 10 and the second cabin 20 during rotation. In some specific embodiments, the top gas distribution plate 31 is a replaceable assembly. As shown in FIG3 , the bottom gas distribution plate 32 is a component for supporting the top gas distribution plate 31, and the top gas distribution plate 31 can be coupled to the support component 40 through the bottom gas distribution plate 32. In at least one specific embodiment of the present disclosure, the top gas distribution plate 31 can be configured to be composed of a plurality of components, so that the top gas distribution plate 31 can be removed from the rotating shaft 50 on which the top gas distribution plate 31 is penetrated without moving the bottom gas distribution plate 32 below, so as to replace the worn top gas distribution plate 31.

In at least one specific embodiment of the present disclosure, the top valve plate 31 may be a graphite plate made of graphite. The top valve plate 31 made of graphite can reduce the friction between the surface in contact with the second hull 20 during rotation, thereby effectively reducing the torque (torque) required for the first hull 10 and the second hull 20 to rotate, thereby reducing the operating load and temperature of the drive module that drives the first hull 10 and the second hull 20 to rotate. In some embodiments of the present disclosure, by using the above-mentioned graphite disk, the operating temperature of the drive module when driving the first cabin 10 and the second cabin 20 is less than 41°C, so there is no need to install an additional cooling device (such as a blowing device) to avoid the reduction of the unit per hour (UPH) of the rotary distribution device 1 due to overheating of the drive module.

The term "drive module" herein refers to a power device that converts various energy or power sources into mechanical kinetic energy to drive an object, device or system to move. The drive module has different implementations depending on the type of the energy or power source. In at least one embodiment of the present disclosure, the drive module includes but is not limited to a pneumatic actuator (e.g., a pneumatic cylinder), a hydraulic actuator (e.g., a hydraulic cylinder), an electric actuator (e.g., a DC motor, an AC motor or a stepper motor), and an electromechanical hybrid actuator (e.g., an electromagnetic valve). In at least one embodiment of the present disclosure, the drive module is used to drive an object, device or system to rotate. In at least one embodiment of the present disclosure, the drive module includes a drive motor, such as but not limited to a direct drive motor.

As shown in FIG3 , the top gas distribution plate 31 and the bottom gas distribution plate 32 have a plurality of third channels 311, 321 and a plurality of fourth channels 312, 322. The plurality of third channels 311, 321 may correspond to the plurality of second openings 281 of the second cabin 20, and the plurality of fourth channels 312, 322 may correspond to the plurality of first openings 282 of the second cabin 20. In at least one embodiment of the present disclosure, the plurality of third channels 311, 321 may be aligned with the plurality of second openings 281 when the second cabin 20 and the gas distribution plate assembly 30 are relatively stationary, so that gas can flow between the plurality of third channels 311, 321 and the plurality of second channels 27 of the second cabin 20 when the rotation stops. In addition, the plurality of fourth channels 312, 322 can be connected to the air chamber formed between the second cabin 20 and the top air distribution plate 31 when the second cabin 20 and the air distribution plate assembly 30 rotate relative to each other or are stationary, so that the gas of the plurality of fourth channels 312, 322 and the plurality of first channels 23 of the second cabin 20 can continuously flow, thereby obtaining the negative pressure gas path 14 that can maintain a stable negative pressure state when the first cabin 10 and the second cabin 20 rotate or are stationary.

In at least one specific embodiment of the present disclosure, the contact surface of the second hull 20 and the top gas distribution plate 31 has an annular groove, the plurality of first openings 282 of the second hull 20 are arranged in the annular groove, and the plurality of fourth channels 312 of the top gas distribution plate 31 can also correspond to the annular groove (for example, the annular groove can be arranged to completely cover the opening of the fourth channel 312). The relative configuration between the annular groove and the plurality of fourth channels 312 will not affect the gas conduction between the plurality of first channels 23 of the second hull 20 and the gas distribution plate assembly 30, regardless of whether the second hull 20 rotates relative to the top gas distribution plate 31. That is, the air pressure conditions of the negative pressure gas path 14 between the first hull 10 and the second hull 20 and the plurality of fourth channels 312, 322 of the gas distribution plate assembly 30 will be able to remain the same stably.

As shown in FIG. 3 , in at least one specific embodiment of the present disclosure, the gas distribution plate assembly 30 further includes a connector 33, which can be disposed between the top gas distribution plate 31 and the bottom gas distribution plate 32 to increase the airtightness of the locking between the top gas distribution plate 31 and the bottom gas distribution plate 32, and the connector 33 also has a first opening 331 that can conduct the third channels 311 and 321 and a second opening 332 that can conduct the fourth channels 312 and 322.

As shown in FIG3 , the top valve plate 31, the bottom valve plate 32 and the connector 33 of the valve plate assembly 30 also have third bearing ports 313, 323 and 333 respectively. The third bearing ports 313, 323 and 333 may correspond to the first bearing port 19 of the first cabin 10 and the second bearing port 29 of the second cabin 20, whereby the first cabin 10, the second cabin 20, the top valve plate 31, the bottom valve plate 32 and the connector 33 may be coupled to the rotating shaft 50 in a threaded manner. In addition, the fourth channel 322 of the bottom gas distribution plate 32 can be configured with a conduit connection element (not shown) corresponding to each fourth channel 322 at one end of the bottom gas distribution plate 32, so that any external conduit can be connected to the gas in the fourth channel 322 of the bottom gas distribution plate 32.

FIG. 4 is a schematic side cross-sectional view of the assembly of the valve plate assembly 30, the support assembly 40 and the rotating shaft 50 of one specific embodiment of the present disclosure. As shown in FIG. 3 and FIG. 4, the support assembly 40 includes a base plate 41 and a base 42. The base 42 has a connection portion 421 for coupling the rotating shaft 50. The connection portion 421 can be a columnar structure (such as but not limited to a screw structure) that can be inserted into the rotating shaft 50, or the connection portion 421 can be a tubular structure for the rotating shaft 50 to be inserted therein, or the connection portion 421 can be any structure that can couple the rotating shaft 50 to the base 42.

As shown in Fig. 3, Fig. 4 and Fig. 7, the base plate 41 of the support assembly 40 has a plurality of support arms 411 and a plurality of spring elements 412. The support arms 411 are mainly used to support all components (such as but not limited to the valve plate assembly 30, the second hull 20 or the first hull 10, etc.) that are passed through the rotating shaft 50. The support arms 411 are coupled to the bottom valve plate 32 of the valve plate assembly 30 to arrange the valve plate assembly 30 on the base plate 41, thereby preventing the valve plate assembly 30 from rotating with the rotation of the first hull 10 and the second hull 20 (such as the rotation caused by the friction between the contact surface of the second hull 20 and the top valve plate 31). In at least one specific embodiment of the present disclosure, the valve plate assembly 30 disposed on the base plate 41 still has relative degrees of freedom with the base plate 41 on the longitudinal axis of the rotation axis 50.

As shown in Figures 3, 4 and 7, the spring element 412 is mainly used to maintain the tightness between the second hull 20 and the top valve plate 31. For example, the plurality of spring elements 412 are coupled from the base plate 41 to the bottom valve plate 32 of the valve plate assembly 30 in a manner of holding a preload, and the preload held by the plurality of spring elements 412 sandwiched between the base plate 41 and the bottom valve plate 32 makes the contact between the valve plate assembly 30 and the second hull 20 tighter, thereby preventing the negative pressure gas path 14, the first channel 23 and the fourth channels 312, 322 from generating negative pressure leakage during the rotation process.

Furthermore, in addition to the above functions, the plurality of spring elements 412, in at least one specific embodiment of the present disclosure, the top valve plate 31 is a wearable component. The rotation of the second hull 20 will start to wear from the contact surface between the second hull 20 and the top valve plate 31, so that the thickness of the top valve plate 31 is reduced. The above situation may produce negative The side effects of the device operation, such as pressure leakage and additional vibration during rotation, are thus affected. Therefore, the preload force held by the plurality of spring elements 412 will push the valve plate assembly 30 to compensate for the thickness consumed by the top valve plate 31, so that the spring element 412 can compensate for the negative pressure leakage caused by the worn top valve plate 31.

In at least one specific embodiment of the present disclosure, the base plate 41 of the support assembly 40 can be coupled to the base 42 in any manner so that the base plate 41 and the base 42 do not move or rotate relative to each other. In some specific embodiments, the base plate 41 and the base 42 of the support assembly 40 are formed in an integral manner.

FIG5 is a three-dimensional schematic diagram of a rotary dispensing device 1 of one specific embodiment of the present disclosure. As shown in FIG5, the rotary dispensing device 1 includes a rotary connection mechanism, a working turntable 60, and a drive module 70. The drive module 70 includes a drive motor 71 and at least one pressing component 72. The drive motor 71 can be coupled to the top surface 11 of the first cabin 10 of the rotary connection mechanism through the working turntable 60, so that the working turntable 60 and the first cabin 10 and the second cabin 20 of the rotary connection mechanism rotate with the actuation of the drive motor 71.

FIG6 is a three-dimensional schematic diagram of a working turntable 60 of one embodiment of the present disclosure. As shown in FIG5 and FIG6, the working turntable 60 includes a plurality of suction and extraction components 61, which have a downwardly pressed air pipe element 611, and one end of the air pipe element 611 has a suction nozzle 612, and the other end has a plug 613. When the working turntable 60 is coupled to the driving motor 71, the downward pressing component 72 can selectively align with the plug 613 of any one of the plurality of suction and extraction components 61, and the downward pressing component 72 can be controlled to provide downward pressure to the air pipe element 611 by pressing the plug 613, so that the suction nozzle 612 of the air pipe element 611 can contact the target object to be sucked and extracted, and the target object can be, for example, but not limited to, any electronic component or object. In addition, in at least one embodiment of the present disclosure, the suction assembly 61 also includes a connecting element 614 (as shown in FIG. 7 ).

As shown in FIG. 5 and FIG. 6 , the suction assembly 61 further includes a reset element 615, which has a certain degree of elasticity and can be arranged on the tracheal element 611 along the longitudinal axis of the tracheal element 611, so when the downward pressure assembly 72 releases the downward pressure provided on the plug portion 613, the tracheal element 611 can be restored to the initial position by the elasticity of the reset element 615. In at least one specific embodiment of the present disclosure, the reset element 615 can be a spring structure, but the present disclosure is not limited thereto.

Fig. 7 is a side cross-sectional schematic diagram of a rotary dispensing device 1 according to one specific embodiment of the present disclosure. As shown in Fig. 7, in at least one embodiment of the present disclosure, a drive module 70, a working turntable 60, a first cabin 10, a second cabin 20 locked in the first cabin 10, a gas distribution plate assembly 30 and a support assembly 40 are sequentially arranged along the rotation axis 50 from top to bottom. The working turntable 60, the first hull 10 and the second hull 20 are rotating components actuated by the driving module 70. The valve plate assembly 30 is configured to provide a negative pressure to the second hull 20 and the first hull 10 through an external negative pressure generating module so that the interior of the second hull 20 and the first hull 10 are in a negative pressure state, and the support assembly 40 is configured to support the valve plate assembly 30 above it and make the coupling between the valve plate assembly 30 and the second hull 20 and the first hull 10 tighter. By configuring the components of the rotating dispensing device 1 in the above embodiment, the second chamber 20 and the first chamber 10 can continuously provide a stable negative pressure to the plurality of suction components 61 on the working turntable 60 during the rotation or stationary process.

As shown in FIG. 7 , the two ends of any conduit through which gas can pass are respectively coupled to the connecting element 614 and the connecting hole 13 of the first cabin 10. In at least one specific embodiment of the present disclosure, a plurality of suction assemblies 61 can be individually and independently coupled to the first cabin 10, so that the first cabin 10 can provide negative pressure to each suction assemblies 61, that is, the pressure change at one of the plurality of suction assemblies 61 does not affect the pressure at other suction assemblies 61.

The present disclosure is further explained below through specific embodiments, so that those with common knowledge in the technical field to which the present disclosure belongs can better understand the advantages and effects of the present disclosure and implement them accordingly, but the specific embodiments cited should not be used as a limitation of the present disclosure.

Example 1 (Seal type) - Rotary distribution device without top gas distribution plate made of graphite

In this embodiment, the rotary distribution device 1 includes a first cabin 10, a second cabin 20, a gas distribution plate assembly 30, a support assembly 40, a working turntable 60 and a drive module 70. The first cabin 10 and the working turntable 60 are configured as rotary assemblies driven by the drive module 70, while the second cabin 20, the gas distribution plate assembly 30 and the support assembly 40 are configured as fixed assemblies that do not rotate relative to the rotating assemblies. It should be noted that the gas distribution plate assembly 30 of this embodiment does not have a top gas distribution plate 31 made of graphite, and this embodiment couples the first cabin 10 and the second cabin 20 by a plurality of sealing elements. As shown in Table 1 below, the rotary dispensing device 1 of this embodiment needs to provide an initial force of 2.7kgf when the rotation is started, and the torque required to be provided by the drive module 70 is 3.91Nm, and the vacuum degree in the first cabin 10 and the second cabin 20 coupled by a plurality of sealing elements can reach more than 79kpa.

Example 2 (Graphite type) - Rotary distribution device with a top gas distribution plate made of graphite

As shown in Figures 5 and 7, the rotary distribution device 1 includes a first cabin 10, a second cabin 20, a gas distribution plate assembly 30, a support assembly 40, a working turntable 60 and a drive module 70, wherein the first cabin 10, the second cabin 20 and the working turntable 60 are configured as rotating assemblies driven by the drive module 70, and the gas distribution plate assembly 30 and the support assembly 40 are configured as fixed assemblies that do not rotate relative to the rotating assemblies. Different from the embodiment 1, the gas plate assembly 30 of this embodiment has a top gas plate 31 made of graphite, and the support assembly 40 has a spring element 412 that can make the top gas plate 31 and the second cabin 20 more airtight, and this embodiment only needs a single sealing element 25 to couple the first cabin 10 and the second cabin 20. As shown in Table 1, the rotary dispensing device 1 of this embodiment only needs to provide an initial force of 1.5kgf during the rotation start, and the torque required to be provided by the drive module 70 is 2.08Nm. Through the cooperation of the top gas plate 31 and the spring element 412, the vacuum degree in the first cabin 10 and the second cabin 20 can reach more than 79kpa.

[Table 1]

From the data shown in Table 1 above, it can be seen that in terms of vacuum degree, the sealed rotary dispensing device of Example 1 achieves a vacuum degree of more than 79 kPa by using a plurality of sealing elements; while the graphite rotary dispensing device of Example 2 only requires one sealing element to achieve a vacuum degree of more than 79 kPa. The rotary dispensing device of Example 1 can provide a production capacity of about 40 k units per hour (UPH). However, due to the friction generated by the plurality of sealing elements of Example 1 during the rotation process, the drive module will bear a larger rotation load (a torque of 3.91 Nm is required), thereby reducing the UPH of the rotary dispensing device. In addition, in order for the plurality of sealing elements in Example 1 to achieve the effect, the concentricity and roundness between the cabins need to be precisely matched, so the assembly is more complicated and cumbersome. In contrast, the rotary distribution device 1 using the top gas distribution plate 31 made of graphite in Example 2 only has one sealing element 25 between the cabins, so it can avoid causing additional load to the drive module 70 during rotation (only 2.08Nm of torque is required, which is about half of that in Example 1). Therefore, compared with Example 1, the rotary distribution device 1 of Example 2 can provide a UPH of more than 43k, and does not require precise matching of the concentricity and roundness between the cabins, and is relatively simple in assembly.

Table 2 is a comparison table of the displacement of the suction assembly, the device temperature and the UPH of Example 1 and Example 2 during actual operation. As can be seen from the table below, after the operation of Example 1, the displacement of the suction assembly 61 is 0.07 mm, while after the operation of Example 2 using the top gas plate 31 made of graphite, the displacement of the suction assembly 61 is only 0.04 mm. As can be seen from the above, compared with Example 1, the device of Example 2 has less vibration during operation, so it can transport components more stably and accurately. As for the device temperature during operation, the device temperature of Example 2 is only 40.5°C, while the device temperature of Example 1 reaches 70°C. Therefore, compared with Example 2, the device of Example 1 still needs to spend money to install a cooling device (such as a blowing device) during actual operation to avoid overheating and UPH attenuation. In addition, in terms of UPH, due to the effective suppression of the device temperature, Example 2 with a graphite top gas distribution plate 31 still has a production capacity of 43k after three hours, which is significantly higher than the 33.5k production capacity that Example 1 can provide.

In summary, the rotary connection mechanism disclosed herein locks the first hull 10 and the second hull 20 together, and through the airtight effect and stable negative pressure provided by the valve plate assembly 30 and the support assembly 40, the first hull 10 and the second hull 20 can be stably maintained in the same negative pressure state when rotating or stationary relative to the valve plate assembly 30. In addition, the first hull 10 and the second hull 20 of the rotary connection mechanism disclosed herein are small in size and easy to assemble, and the problem of negative pressure leakage can be easily avoided. Therefore, the rotary dispensing device 1 having the rotary connection mechanism disclosed herein can stably provide the suction assembly 61 with continuous negative pressure when the device rotates or stops, thereby improving the stability and efficiency of the dispensing element of the rotary dispensing device 1.

10: First cabin

11: Top

12: Shell

13: Connection hole

19: First bearing mouth

20: Second cabin

21: First surface

22: Spray nozzle

23: First channel

24: Groove

25: Sealing element

29: Second bearing mouth

Claims (10)

A rotary connection mechanism includes: a first pod having a connection hole; a second pod being sleeved in the first pod so that an air path is formed between the first surface of the second pod and the shell of the first pod, and the second pod having: a nozzle corresponding to the connection hole, which is arranged on the first surface and protrudes into the air path; a first opening and a second opening; and a first channel and a second channel formed in the second pod, wherein the first channel is configured to connect the first opening with the air path, and the second channel is configured to connect the second opening with the nozzle. The rotary connection mechanism as described in claim 1, wherein the first pod and the second pod are locked to each other and have the same rotation axis, and the first pod and the second pod are configured such that when the first pod and the second pod rotate along the rotation axis, the air pressure in the air path is maintained constant. A swivel connection mechanism as described in claim 1, wherein the second channel includes a horizontal section corresponding to the nozzle and a vertical section corresponding to the second opening. The swivel connection mechanism as described in claim 1 further includes a gas distribution plate assembly, which includes a top gas distribution plate, wherein the top gas distribution plate is coupled to the second cabin in a relatively rotatable manner to seal the second cabin. The rotary connection mechanism as described in claim 4, wherein the top gas distribution plate includes a third channel corresponding to the second opening connected to the second channel and a fourth channel corresponding to the first opening connected to the first channel. A rotating connection mechanism as described in claim 4, wherein the top gas distribution plate includes a graphite plate. The rotary connection mechanism as described in claim 4 further includes a support assembly having a rotary shaft to support the valve plate assembly, and the support assembly includes a support arm and a spring element, wherein the valve plate assembly is tightly connected to the second cabin by the elastic force of the spring element. The rotary connection mechanism as described in claim 1, wherein the connection holes are arranged around the first hull at equal intervals, and the nozzles are arranged around the first surface of the second hull at equal intervals. A rotary dispensing device, comprising: a rotary connection mechanism as described in claim 1; a working turntable coupled to the rotary connection mechanism; a driving module configured to drive the rotary connection mechanism and the working turntable to rotate; a suction assembly disposed on the working turntable and connected to the rotary connection mechanism via a pipeline; and a negative pressure generating module coupled to the rotary connection mechanism to supply negative pressure to the suction assembly when the driving module is activated or stationary. As described in claim 9, the rotary dispensing device further comprises a support assembly having a rotary shaft to support the rotary connection mechanism, the working turntable and the drive module and to be sequentially arranged on the rotary shaft.

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