Multi-cavity bus automatic dispensing head and dispensing equipment

Abstract

The application relates to the technical field of dispensing, in particular to a multi-cavity confluence automatic dispensing head and a dispensing device, which comprise a tube shell, one end of the tube shell being detachably provided with a nozzle; an internal rotating part is arranged in the tube shell, a plurality of groups of mixing cavities are arranged in the internal rotating part in a circumferential equidistant mode, the mixing cavities have a first state and a second state which are switched by traction, in the second state, the mixing cavities can be in conduction with the nozzle; a pressure storage assembly is arranged in a plurality of groups and mounted on the internal rotating part, when the glue enters the mixing cavities, the pressure storage assembly can pressurize the glue; a rotary stirring structure is connected with the pressure storage assembly, the rotary stirring structure can stir the glue when the glue enters or flows out of the mixing cavities; a pushing structure is arranged in the tube shell, the pushing structure can be locked with an arc-shaped groove arranged on the pressure storage assembly when the pressure storage assembly is switched from the first state to the second state, and the mixing effect of the glue is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dispensing, in particular to a multi-cavity confluence automatic dispensing head and a dispensing device. BACKGROUND

[0002] In the production process of vehicle horn components, a dispensing station is required to be configured for precise bonding and sealing of parts such as voice coil-membrane, magnet-basket, PCB-support, etc., so as to ensure the vibration transmission efficiency and long-term vibration resistance reliability.

[0003] The traditional dispensing device usually adopts a scheme of static mixing pipe + continuous feeding, and A glue and B glue are directly sent out after mixing in a large cavity by relying on flow shear and rotating spiral fins. This mode is still acceptable for conventional viscosity and proportion close systems, but it exposes very common problems for high viscosity difference, high thixotropy, micron filler containing and extremely sensitive to bubbles of vehicle-mounted electric sound glue, such as: for high viscosity difference glue, due to its own reasons such as large flow resistance and easy to form laminar flow state, it is difficult to be fully stirred and mixed by rotating spiral fins during flowing through the mixing pipe, resulting in insufficient mixing time and uneven mixing between the glue during rapid discharge.

[0004] Further, for the traditional dispensing device, the glue will not be stirred by flow and then directly discharged after entering the dispensing head, but must go through three active steps of metering-back pressure establishment-valve opening, which can ensure accurate amount of each drop of glue, but there is a short pause in glue discharging time, resulting in the problem of twice dispensing for the same dispensing point to supplement the amount of glue, which affects the dispensing quality. SUMMARY

[0005] The purpose of the present application is to provide a multi-cavity confluence automatic dispensing head and a dispensing device to solve the problems raised in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme:

[0007] A multi-cavity confluence automatic dispensing head, comprising:

[0008] A pipe shell, one end of the pipe shell is detachably mounted with a nozzle;

[0009] An internal rotating member is arranged in the pipe shell, a plurality of groups of mixing cavities are arranged in the internal rotating member in a circumferential equidistant manner, the mixing cavities have a first state and a second state which are switched by traction, and in the second state, the mixing cavities can be in communication with the nozzle;

[0010] A pressure storage assembly is arranged in multiple groups and mounted on the internal rotating member, and when the glue enters the mixing cavity, the pressure storage assembly can pressurize the glue;

[0011] A rotating stirring structure is connected to the pressure storage assembly, and is capable of stirring the gel when the gel enters or flows out of the mixing cavity;

[0012] A pushing structure is arranged in the tube shell, and is capable of being locked with an arc-shaped groove arranged on the pressure storage assembly when the pressure storage assembly is switched from the first state to the second state.

[0013] As a further scheme of the present application, a driving motor is fixedly installed at one end of the tube shell, and an output shaft of the driving motor is connected to the built-in rotating member;

[0014] An inner thread is arranged at one end of the tube shell away from the driving motor, an outer thread is arranged at the top of the nozzle, and the inner thread is threadedly matched with the outer thread.

[0015] As a further scheme of the present application, a discharging port is arranged at the bottom of the mixing cavity, and the discharging port is coincided with a flow guide arranged on the nozzle in the second state;

[0016] A feeding channel is arranged at the side of the mixing cavity, a feeding structure arranged at the side of the tube shell is matched with the feeding channel, and the feeding structure is capable of injecting the gel into the mixing cavity.

[0017] As a further scheme of the present application, the feeding structure comprises a first feeding port, a second feeding port and a third feeding port arranged on the tube shell.

[0018] As a further scheme of the present application, the pressure storage assembly comprises a sealing plug sealingly and slidingly installed in the mixing cavity, a connecting rod penetrating through the top of the mixing cavity and slidingly arranged is connected to the sealing plug, a cylindrical spring is sleeved on the connecting rod, one end of the cylindrical spring is connected to the sealing plug, and the other end is connected to the inner wall of the mixing cavity;

[0019] A stopper is arranged at one end of the connecting rod away from the sealing plug, and the stopper is abuttingly matched with the top plane of the built-in rotating member.

[0020] As a further scheme of the present application, a hollow part is formed in the connecting rod, and the arc-shaped groove is arranged at one end of the connecting rod away from the sealing plug.

[0021] As a further scheme of the present application, the rotating stirring structure comprises a connecting shaft arranged along the length direction of the connecting rod and penetrating through the sealing plug, a helical stirring member coaxial with the connecting shaft is arranged at one end of the connecting shaft, and a guide member capable of sliding in the hollow part is rotatably installed at the other end of the connecting shaft;

[0022] The rotating stirring structure further comprises a gear cover assembly arranged in the tube shell and connected with the connecting shaft, and the gear cover assembly can drive the spiral stirring member to rotate when the built-in rotating member rotates.

[0023] As a further scheme of the present application, the gear cover assembly comprises a gear coaxially fixedly connected with the connecting shaft and a gear ring arranged in the tube shell and coaxial with the built-in rotating member, and the gear is engaged with the gear ring.

[0024] As a further scheme of the present application, the presumption structure comprises an electric telescopic rod fixedly installed in the tube shell, and an arc-shaped fitting member is connected to the action end of the electric telescopic rod, and the arc-shaped fitting member can be embedded in the arc-shaped groove.

[0025] A dispensing device comprises the automatic dispensing head with multiple cavities converging.

[0026] Compared with the prior art, the present application has the following beneficial effects:

[0027] Through the multiple groups of mixing cavities, on the one hand, the glue is filled into a smaller space for mixing, so that the glue can be fully mixed in a short time when the rotating stirring structure operates, and the mixing effect between the glues is improved; on the other hand, the multiple mixing cavities are in circulation with the drainage channel, so that the glue can be continuously injected into the drainage channel, thereby realizing continuous dispensing operation and improving dispensing quality.

[0028] Through the rotating stirring structure, the glue can be stirred and mixed again during the process of being extruded for dispensing, so that the glue can be sheared and stirred multiple times, and the mixing effect between the glues is maximized to prevent uneven mixing of high-viscosity glue.

[0029] Through the pressure storage assembly, firstly, the volume of bubbles in the glue can be reduced by pressurization, and the surface tension can more easily "press back" the micro-bubbles into the glue, preventing large-diameter bubbles in the glue from causing unstable glue output during subsequent dispensing process; secondly, the apparent viscosity between the glues is reduced by pressurization, and the molecular chain segment movement resistance is simultaneously reduced, so that the stirring effect on the glue is more sufficient under the same conditions, and the mixing degree between the glues is improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 Structure schematic diagram of an embodiment of the automatic dispensing head with multiple cavities converging.

[0031] Figure 2 Structure schematic diagram of the nozzle and the tube shell separated in an embodiment of the automatic dispensing head with multiple cavities converging.

[0032] Figure 3 A cross-sectional view of a nozzle and a tube housing in one embodiment of the multi-cavity manifolded automated dispensing head.

[0033] Figure 4 A cross-sectional view of a nozzle and a tube housing in one embodiment of the multi-cavity manifolded automated dispensing head. Figure 3 An enlarged view of the structure at A in the above figure.

[0034] Figure 5 A cross-sectional view of a nozzle and a tube housing in one embodiment of the multi-cavity manifolded automated dispensing head.

[0035] Figure 6 A cross-sectional view of a nozzle and a tube housing in one embodiment of the multi-cavity manifolded automated dispensing head.

[0036] Figure 7 A cross-sectional view of a nozzle and a tube housing in one embodiment of the multi-cavity manifolded automated dispensing head.

[0037] Figure 8 A cross-sectional view of a nozzle and a tube housing in one embodiment of the multi-cavity manifolded automated dispensing head.

[0038] Figure 9 A cross-sectional view of a nozzle and a tube housing in one embodiment of the multi-cavity manifolded automated dispensing head.

[0039] In the figure: 1, nozzle; 101, external thread; 102, flow guide; 2, tube housing; 201, first inlet; 202, second inlet; 203, third inlet; 204, internal thread; 3, drive motor; 4, built-in rotating member; 401, mixing cavity; 402, discharge port; 403, feed channel; 5, sealing plug; 6, connecting rod; 601, hollow part; 602, stop; 603, arc-shaped groove; 7, cylindrical spring; 8, helical stirring member; 9, connecting shaft; 10, gear; 11, guide; 12, gear ring; 1201, annular protrusion; 13, electric telescopic rod; 14, arc-shaped fitting member. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0041] In addition, elements in the present application can be referred to as being "fixed" or "disposed" on another element. It can be directly on another element or there can be intervening elements. When an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or intervening elements can be present. The terms "vertical", "horizontal", "left", "right" and similar expressions as used herein are for illustrative purposes only and are not intended to be limiting.

[0042] Referring to Figures 1-9 In an embodiment of the present application, a multi-cavity confluence automatic dispensing head comprises a tube shell 2, an internal rotating part 4, a pressure storage assembly, a rotating stirring structure and a pushing structure.

[0043] One end of the tube shell 2 is detachably mounted with a nozzle 1. Specifically, one end of the tube shell 2 is provided with an internal thread 204, and the top of the nozzle 1 is provided with an external thread 101. The internal thread 204 is threadedly matched with the external thread 101.

[0044] In this embodiment, when assembling, the internal rotating part 4 is first mounted inside the tube shell 2, and then the nozzle 1 is mounted. Specifically, the nozzle 1 is connected with the tube shell 2 through the thread matching of the external thread 101 and the internal thread 204. Based on this simple and easy-to-operate connection mode, the nozzle 1 can be quickly mounted and detached, so that when a gel film is formed inside the nozzle 1, it can be quickly disassembled and cleaned, shortening the downtime.

[0045] Referring to Figures 2-5 The internal rotating part 4 is arranged in the tube shell 2. A plurality of groups of mixing cavities 401 are arranged at equal intervals in the internal rotating part 4. Specifically, three groups of mixing cavities 401 are arranged. The mixing cavities 401 have a first state and a second state which are switched by traction. In the second state, the mixing cavities 401 can be in communication with the nozzle 1.

[0046] One end of the tube shell 2 is fixedly mounted with a driving motor 3. The output shaft of the driving motor 3 is connected with the internal rotating part 4. The driving motor 3 is a stepping motor. Each rotation of 120° of the stepping motor can make a plurality of groups of mixing cavities 401 in communication with the nozzle 1.

[0047] The bottom of the mixing cavity 401 is provided with a discharging port 402. In the second state, the discharging port 402 is coincided with a flow guide 102 arranged on the nozzle 1, so that the mixed A glue, B glue and adhesive in the mixing cavity 401 enter into the flow guide 102.

[0048] The side of the mixing cavity 401 is provided with a feeding channel 403, and a feeding structure provided on the side of the tube shell 2 is matched with the feeding channel 403, so that the glue can be injected into the mixing cavity 401 alternately, and the feeding structure comprises a first feeding port 201, a second feeding port 202 and a third feeding port 203 provided on the tube shell 2.

[0049] In use, the external A glue storage tank, the adhesive storage tank and the B glue storage tank are respectively connected with the first feeding port 201, the second feeding port 202 and the third feeding port 203 by pipelines, and in the initial state, the feeding channel 403 on the side of the mixing cavity 401 is in a dislocation state with the first feeding port 201, the second feeding port 202 and the third feeding port 203, and the discharge port 402 is also in a dislocation state with the drainage channel 102, so that the mixing cavity 401 is a closed cavity. When the built-in rotating part 4 rotates under the driving of the driving motor 3, the feeding channel 403 can be coincided and conducted with the first feeding port 201, the second feeding port 202 and the third feeding port 203 in turn, so that the external A glue storage tank, the adhesive storage tank and the B glue storage tank can pump A glue, adhesive and B glue into the mixing cavity 401 respectively, so that the glue can be filled into the mixing cavity 401. In this process, the space of the mixing cavity 401 is much smaller than the space of the whole tube shell 2, that is, the glue can be filled into a smaller space for mixing, so as to ensure that the glue can be mixed sufficiently in a short time when the stirring structure is in action, and the mixing effect of the glue (A glue, adhesive and B glue) is improved.

[0050] It should be noted that the first state described above refers to a continuous process, including the remaining states except the second state. In the first state, the mixing cavity 401 can rotate with the built-in rotating part 4, and the glue can be injected into the mixing cavity 401. For the second state, only the state in which the discharge port 402 is coincided with the drainage channel 102 is referred to.

[0051] It should be further noted that although the stirring and mixing of the glue are carried out in the smaller mixing cavity 401, a plurality of mixing cavities 401 can be alternately conducted with the drainage channel 102 during the rotation of the built-in rotating part 4, so that the mixed glue can enter the drainage channel 102 continuously, thereby realizing continuous dispensing work.

[0052] Please refer to Figures 3-4 、 Figures 7-8 , the pressure storage assembly is provided with a plurality of groups and is installed on the built-in rotating part 4, so that the pressure storage assembly can pressurize the glue when the glue enters the mixing cavity 401;

[0053] The pressure storage assembly comprises a sealing plug 5 sealingly and slidingly installed in the mixing cavity 401, a connecting rod 6 connected to the sealing plug 5 and slidingly arranged through the top of the mixing cavity 401, a cylindrical spring 7 sleeved on the connecting rod 6, one end of the cylindrical spring 7 being connected with the sealing plug 5 and the other end being connected with the inner wall of the mixing cavity 401.

[0054] The end of the connecting rod 6 away from the sealing plug 5 is provided with a stop portion 602 abutting against the top plane of the built-in rotating part 4.

[0055] In the initial state, the cylindrical spring 7 is in a compressed state, and the stop portion 602 is in abutment with the top plane of the built-in rotating part 4, at this time, the sealing plug 5 is in a stable state in the mixing cavity 401, and when the colloid is injected into the mixing cavity 401, the colloid can act on the sealing plug 5 to lift the sealing plug 5 upward, preventing the internal constant volume of the mixing cavity 401 from causing the colloid to be unable to be squeezed into the inside, and in the above process, the connecting rod 6 moves upward, and the cylindrical spring 7 is further compressed, so that the colloid in the mixing cavity 401 can be in a squeezed state, and by this way of pressurization, it can:

[0056] Firstly, by pressurization, the volume of the gas bubbles in the colloid can be reduced, and the surface tension can more easily "press back" the microbubbles into the colloid, preventing the existence of large-diameter gas bubbles in the colloid from causing unstable glue output in the subsequent dispensing process;

[0057] Secondly, by pressurization, the apparent viscosity of the colloid is reduced, and the molecular chain segment movement resistance is also reduced, so that the stirring effect of the colloid is more sufficient under the same conditions, and the mixing degree of the colloid is improved.

[0058] Further, after the A glue, the adhesive and the B glue are mixed, a colloid film is formed on the inner wall of the mixing cavity 401, and the sealing plug 5 and the inner wall of the mixing cavity 401 are in a sliding connection state, so that when the sealing plug 5 moves reversely to squeeze out the mixed colloid, the colloid film formed on the inner wall of the mixing cavity 401 can be scraped off, preventing the continuous accumulation of the thickness of the colloid film from causing the internal capacity of the mixing cavity 401 to decrease, or the colloid film from separating from the inner wall of the mixing cavity 401 to block the nozzle 1.

[0059] Please refer to Figures 6-9 , the connecting rod 6 is internally formed with a hollow portion 601, and the end of the connecting rod 6 away from the sealing plug 5 is provided with the arc-shaped groove 603;

[0060] The presumptive structure is arranged in the pipe shell 2, and can be locked with an arc-shaped groove 603 arranged on the pressure storage assembly when the pressure storage assembly is switched from the first state to the second state. The presumptive structure comprises an electric telescopic rod 13 fixedly installed in the pipe shell 2, and an arc-shaped fitting part 14 connected to the action end of the electric telescopic rod 13, which can be embedded in the arc-shaped groove 603.

[0061] In the embodiment, the glue is quantitatively injected into the mixing cavity 401, so that the height of the sealing plug 5 is constant after the injection of the glue is completed, and the glue maintains the predetermined height although there is a slight change in volume when the stirring structure completes the stirring. When one group of mixing cavities 401 is switched from the first state to the second state and rotates following the built-in rotating part 4, the corresponding connecting rod 6 also rotates, and in the process of rotation, the arc-shaped groove 603 at the top of the connecting rod 6 can coincide with the arc-shaped fitting part 14 and enable the arc-shaped fitting part 14 to be inserted into the arc-shaped groove 603. After that, when the discharge port 402 coincides with the flow guide 102, the arc-shaped fitting part 14 and the arc-shaped groove 603 cooperate to produce a locking effect on the connecting rod 6, because the action end of the electric telescopic rod 13 is in a stationary state. In this state, the connecting rod 6 and the sealing plug 5 do not produce a squeezing effect on the glue due to the pushing of the cylindrical spring 7. When it is necessary to squeeze the glue for dispensing, the electric telescopic rod 13 is controlled to act, and at this time, the arc-shaped fitting part 14 can push the connecting rod 6 according to the set speed, so that the glue output during dispensing is more controllable.

[0062] Further, the arc-shaped fitting part 14 has a certain length, so that the corresponding connecting rod 6 can be combined with the arc-shaped fitting part 14 before the connecting rod 6 is completely switched to the second state, that is, when the discharge port 402 is completely misaligned with the flow guide 102, the arc-shaped fitting part 14 can be combined with the connecting rod 6, so that the connecting rod 6 can be locked to prevent the glue from entering the flow guide 102 during the process that the discharge port 402 is partially overlapped with the flow guide 102, causing the connecting rod 6 to move, and further causing the arc-shaped fitting part 14 to be unable to be combined with the connecting rod 6, resulting in that the glue output cannot be stably controlled.

[0063] Please refer to Figures 6-8 , the rotating and stirring structure is connected to the pressure storage assembly, and can stir the glue when the glue enters or flows out of the mixing cavity 401;

[0064] The rotating and stirring structure comprises a connecting shaft 9 arranged along the length direction of the connecting rod 6 and penetrating through the sealing plug 5, one end of the connecting shaft 9 is provided with a helical stirring part 8 coaxial with the connecting shaft 9, and the other end is rotatably installed with a guide part 11 which can slide in the hollow part 601;

[0065] The rotating stirring structure further comprises a gear cover assembly arranged in the tube shell 2 and connected with the connecting shaft 9, the gear cover assembly can drive the helical stirring piece 8 to rotate when the built-in rotating piece 4 rotates, the gear cover assembly comprises a gear 10 coaxially fixedly connected with the connecting shaft 9 and a gear ring 12 arranged in the tube shell 2 and coaxial with the built-in rotating piece 4, the gear 10 is engaged with the gear ring 12;

[0066] Further, the gear ring 12 is formed with an annular protrusion 1201 for limiting the gear 10, the annular protrusion 1201 is in sliding abutment with the upper and lower sides of the gear 10, so that the gear ring 12 has a limiting effect on the gear 10, thereby ensuring that the gear 10, the connecting shaft 9 and the helical stirring piece 8 can be in a predetermined position relative to the built-in rotating piece 4 during the movement of the connecting rod 6.

[0067] In the embodiment, when the built-in rotating piece 4 rotates to enable the feeding channel 403 to be in turn coincided with the first feeding port 201, the second feeding port 202 and the third feeding port 203 and be in conduction, the colloid can enter the mixing cavity 401, and in this process, the gear 10 can rotate through the engagement with the gear ring 12, and the helical stirring piece 8 is driven by the connecting shaft 9 to stir the colloid, after the quantitative colloid is filled, the built-in rotating piece 4 continues to rotate, and in this process, the helical stirring piece 8 continues to rotate to shear and stir the colloid in the mixing cavity 401, so that the colloid is more fully mixed.

[0068] Further, when the discharge port 402 is completely coincided with the drainage channel 102, the built-in rotating piece 4 is in an axial locking state under the action of the driving motor 3, so that in this state, the gear 10 is also in a locking state relative to the gear ring 12, which enables the colloid to pass through the helical stirring piece 8 again and be sheared and stirred again under the action of the helical stirring piece 8 when the sealing plug 5 moves reversely to extrude the colloid for dispensing, and based on this setting, the colloid can be subjected to multiple shearing and stirring, thereby maximizing the mixing effect between the colloids.

[0069] As an embodiment of the present application, a dispensing device is also provided, which comprises the multi-cavity converging automatic dispensing head.

[0070] It will be obvious to a person skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments and can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims to the identity of the reference signs therein.

[0071] Furthermore, it should be understood that although the description is made on the basis of the embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An automated dispensing head with multi-cavity manifold, characterized in that, The utility model provides a kind of automatic dispensing head, comprising: Pipe shell, one end of the pipe shell is detachably mounted with nozzle; Built-in rotating member is arranged in the pipe shell, and a plurality of groups of mixing cavities are arranged in the built-in rotating member in a circumferential equidistant manner, the mixing cavities have a first state and a second state which are switched by traction, and in the second state, the mixing cavities can be communicated with the nozzle; Pressure storage assembly is arranged and mounted on the built-in rotating member, and when the glue enters the mixing cavity, the pressure storage assembly can pressurize the glue; Rotary stirring structure is connected to the pressure storage assembly, and the rotary stirring structure can stir the glue when the glue enters or flows out of the mixing cavity; The inference structure is arranged in the pipe shell, and the inference structure can be locked with the arc-shaped groove arranged on the pressure storage assembly when the pressure storage assembly is switched from the first state to the second state. The pressure storage assembly comprises a sealing plug sealingly and slidingly mounted in the mixing cavity, a connecting rod penetrating through the top of the mixing cavity and slidingly arranged on the sealing plug is connected to the sealing plug, a cylindrical spring is sleeved on the connecting rod, one end of the cylindrical spring is connected to the sealing plug, and the other end of the cylindrical spring is connected to the inner wall of the mixing cavity; A stop portion is arranged at the end of the connecting rod away from the sealing plug, and the stop portion is abutted and adapted to the top plane of the built-in rotating member; The connecting rod is internally formed with a hollow portion, and the arc-shaped groove is arranged at the end of the connecting rod away from the sealing plug.

2. The multi-cavity manifolded automated dispensing head of claim 1, wherein, A driving motor is fixedly mounted at one end of the pipe shell, and the output shaft of the driving motor is connected to the built-in rotating member; An internal thread is arranged at the end of the pipe shell away from the driving motor, an external thread is arranged at the top of the nozzle, and the internal thread is threadedly matched with the external thread.

3. The multi-cavity manifolded automated dispensing head of claim 1, wherein, A discharge port is arranged at the bottom of the mixing cavity, and in the second state, the discharge port is coincided with the drainage channel arranged on the nozzle; A feeding channel is arranged at the side of the mixing cavity, a feeding structure arranged at the side of the pipe shell is matched with the feeding channel, and the feeding structure can inject glue into the mixing cavity.

4. The multi-cavity manifolded automated dispensing head of claim 3, wherein, The feeding structure comprises a first feeding port, a second feeding port and a third feeding port arranged on the pipe shell.

5. The multi-cavity manifolded automated dispensing head of claim 4, wherein, The rotary stirring structure comprises a connecting shaft arranged along the length direction of the connecting rod and penetrating through the sealing plug, one end of the connecting shaft is provided with a helical stirring member coaxial with the connecting shaft, and the other end of the connecting shaft is rotatably mounted with a guide member capable of sliding in the hollow portion; The rotary stirring structure further comprises a gear meshing assembly arranged in the pipe shell and connected to the connecting shaft, and the gear meshing assembly can drive the helical stirring member to rotate when the built-in rotating member rotates.

6. The multi-cavity manifolded automated dispensing head of claim 5, wherein, The gear meshing assembly comprises a gear fixedly connected coaxially with the connecting shaft and a gear ring arranged in the pipe shell coaxially with the built-in rotating member, and the gear is meshed with the gear ring.

7. The multi-cavity manifolded automated dispensing head of claim 1, wherein, The inference structure comprises an electric telescopic rod fixedly mounted in the pipe shell, and an arc-shaped fitting member is connected to the action end of the electric telescopic rod, and the arc-shaped fitting member can be embedded in the arc-shaped groove.

8. A dispensing apparatus, comprising: The utility model provides a kind of automatic dispensing head, comprising: Pipe shell, one end of the pipe shell is detachably mounted with nozzle; Built-in rotating member is arranged in the pipe shell, and a plurality of groups of mixing cavities are arranged in the built-in rotating member in a circumferential equidistant manner, the mixing cavities have a first state and a second state which are switched by traction, and in the second state, the mixing cavities can be communicated with the nozzle; Pressure storage assembly is arranged and mounted on the built-in rotating member, and when the glue enters the mixing cavity, the pressure storage assembly can pressurize the glue; Rotary stirring structure is connected to the pressure storage assembly, and the rotary stirring structure can stir the glue when the glue enters or flows out of the mixing cavity; The inference structure is arranged in the pipe shell, and the inference structure can be locked with the arc-shaped groove arranged on the pressure storage assembly when the pressure storage assembly is switched from the first state to the second state. The pressure storage assembly comprises a sealing plug sealingly and slidingly mounted in the mixing cavity, a connecting rod penetrating through the top of the mixing cavity and slidingly arranged on the sealing plug is connected to the sealing plug, a cylindrical spring is sleeved on the connecting rod, one end of the cylindrical spring is connected to the sealing plug, and the other end of the cylindrical spring is connected to the inner wall of the mixing cavity; A stop portion is arranged at the end of the connecting rod away from the sealing plug, and the stop portion is abutted and adapted to the top plane of the built-in rotating member; The connecting rod is internally formed with a hollow portion, and the arc-shaped groove is arranged at the end of the connecting rod away from the sealing plug. A driving motor is fixedly mounted at one end of the pipe shell, and the output shaft of the driving motor is connected to the built-in rotating member; An internal thread is arranged at the end of the pipe shell away from the driving motor, an external thread is arranged at the top of the nozzle, and the internal thread is threadedly matched with the external thread. A discharge port is arranged at the bottom of the mixing cavity, and in the second state, the discharge port is coincided with the drainage channel arranged on the nozzle; A feeding channel is arranged at the side of the mixing cavity, a feeding structure arranged at the side of the pipe shell is matched with the feeding channel, and the feeding structure can inject glue into the mixing cavity. The feeding structure comprises a first feeding port, a second feeding port and a third feeding port arranged on the pipe shell. The rotary stirring structure comprises a connecting shaft arranged along the length direction of the connecting rod and penetrating through the sealing plug, one end of the connecting shaft is provided with a helical stirring member coaxial with the connecting shaft, and the other end of the connecting shaft is rotatably mounted with a guide member capable of sliding in the hollow portion; The rotary stirring structure further comprises a gear meshing assembly arranged in the pipe shell and connected to the connecting shaft, and the gear meshing assembly can drive the helical stirring member to rotate when the built-in rotating member rotates. The gear meshing assembly comprises a gear fixedly connected coaxially with the connecting shaft and a gear ring arranged in the pipe shell coaxially with the built-in rotating member, and the gear is meshed with the gear ring. The inference structure comprises an electric telescopic rod fixedly mounted in the pipe shell, and an arc-shaped fitting member is connected to the action end of the electric telescopic rod, and the arc-shaped fitting member can be embedded in the arc-shaped groove. The utility model provides a kind of automatic dispensing head, comprising:

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