CN109807035B

CN109807035B - Omnibearing vision dispensing machine

Info

Publication number: CN109807035B
Application number: CN201910092453.4A
Authority: CN
Inventors: 丁明军; 丁峰; 王芳; 倪凯华
Original assignee: Zhejiang Institute of Mechanical and Electrical Engineering Co Ltd
Current assignee: Zhejiang Institute of Mechanical and Electrical Engineering Co Ltd
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2020-06-16
Anticipated expiration: 2039-01-30
Also published as: CN109807035A

Abstract

The invention relates to a dispenser, in particular to an all-dimensional visual dispenser. All-round vision point gum machine, which comprises a case, be located quick-witted incasement feed workstation and control element, machine incasement portion is provided with transverse guide, transverse guide is on a parallel with the direction of feed that feeds the workstation, sliding connection has the vertical guide of the perpendicular transverse guide of level on the horizontal guide, sliding connection has the locating rack on the vertical guide, it is provided with the drive shaft to run through on the locating clamp, the drive shaft passes through driving motor and drives, the bottom of drive shaft is provided with a plurality of point and glues the head, it links to each other with the drive shaft through adjusting cylinder to glue the head, machine roof portion is provided with panoramic camera, be provided with the feature camera on the locating rack, panoramic camera and camera feature. The invention has the advantages of effectively improving the dispensing precision, improving the production efficiency, automatically adjusting the dispensing position according to actual needs and the like without manual adjustment.

Description

Omnibearing vision dispensing machine

Technical Field

The invention relates to a dispenser, in particular to an all-dimensional visual dispenser.

Background

The existing glue dispensing is generally manual glue dispensing, manual operation is adopted, the glue dispensing position is not accurate, the manual operation cost is high, the error is large, and the efficiency is low. The other type is that a dispensing machine is used for dispensing, a dispensing head is fixed, and dispensing at different positions is realized by adjusting the position of a workpiece, so that the dispensing precision can be improved, but the operation is inconvenient and the efficiency is low. The existing dispensing machine controls the dispensing amount through a valve during dispensing, but the existing dispensing liquid is viscous, when the valve is closed, part of the dispensing liquid is adhered to the dispensing head, cannot reach a product, and is moved to the next dispensing position, so that the dispensing amount obtained at the dispensing position is easily smaller than the dispensing amount, the actual quality of dispensing is affected, and the dispensing liquid adhered to the dispensing head is easily dropped on the way to the next dispensing position in the moving process.

Disclosure of Invention

The invention mainly aims at the problems and provides an omnibearing visual dispensing machine, which can effectively improve dispensing precision, improve production efficiency, does not need manual adjustment and automatically adjust the dispensing position according to actual needs; the second invention aims to avoid the situation that the obtained dispensing amount of the product is smaller than the set dispensing amount, improve the dispensing quality and avoid the dispensing liquid from randomly dropping.

The first object of the present invention is achieved mainly by the following means: the utility model provides an all-round vision point gum machine, which comprises a case, be located quick-witted incasement feed workstation and control element, machine incasement portion is provided with transverse guide, transverse guide is on a parallel with the direction of feed of feeding the workstation, sliding connection has the vertical guide of the perpendicular transverse guide of level on the horizontal guide, sliding connection has the locating rack on the vertical guide, it is provided with the drive shaft to run through on the locating clamp, the drive shaft passes through driving motor and drives, the bottom of drive shaft is provided with a plurality of point and glues the head, it links to each other with the drive shaft through adjusting cylinder to glue the head, machine roof portion is provided with panoramic camera, be provided with the feature camera on the locating rack, panoramic camera. The feeding working platform can realize feeding of workpieces, and the transverse guide rail is parallel to the feeding direction of the feeding working platform, namely the feeding direction of the feeding working platform is transverse. And a longitudinal guide rail is connected on the transverse guide rail in a sliding way, and the longitudinal guide rail can be adjusted in a horizontal transverse sliding way along the transverse guide rail. The longitudinal guide rail is connected with a positioning frame in a sliding mode, the positioning frame slides along the longitudinal guide rail, and the direction of the longitudinal guide rail is the horizontal direction perpendicular to the transverse guide rail. When the longitudinal guide rail slides along the transverse guide rail together with the positioning frame, the transverse horizontal position of the positioning frame can be adjusted, and when the positioning frame slides along the longitudinal guide rail, the longitudinal horizontal position of the positioning frame can be adjusted. Run through the drive shaft on the locating rack, the drive shaft passes through driving motor and drives, and driving motor is step motor, can drive shaft corotation and reversal. The driving shaft is connected with an adjusting cylinder, and the adjusting cylinder is connected with a dispensing head. The dispensing head can follow the locating rack and adjust horizontal and fore-and-aft horizontal position, and rethread driving motor drives the drive shaft rotation, makes the dispensing head around the rotatory adjustment position of drive shaft axis, and through adjust cylinder's promotion, can adjust the vertical distance of dispensing head and drive shaft horizontal direction. When the feeding workbench horizontally feeds the workpiece, the panoramic camera at the top of the case can penetrate through the positions of all parts in the case in real time, and then the positions of the positioning frame and the dispensing head are observed through the close-up camera. After the close-up camera determines the position of the glue to be dispensed on the workpiece, the control element controls the longitudinal guide rail to slide along the transverse guide rail, the drive positioning frame slides along the longitudinal guide rail to reach the position above the workpiece and feed along with the workpiece, and meanwhile, the drive motor and the adjusting cylinder are started to enable the glue dispensing head to rotate and push the glue dispensing head to be right above the glue dispensing position, so that glue dispensing is achieved. And after dispensing is finished, quickly adjusting the position to dispense the subsequent workpieces, and repeating the action. Whole process is observed with panoramic camera and feature camera, utilizes control element control longitudinal rail, locating rack, drive shaft and adjust cylinder, realizes automatic positioning and accurate location to glue the in-process at the location and follow the real-time adjustment position of work piece in the whole journey, feed the workstation and need not to stop, and the work piece lasts and feeds the in-process and realize gluing, raises the efficiency.

Preferably, the number of the adjusting cylinders is two, the two adjusting cylinders are distributed in central symmetry around the axis of the driving shaft, and the connecting line of the axes of the two dispensing heads passes through the axis of the driving shaft. The adjusting cylinders are two, the two adjusting cylinders are distributed in a central symmetry mode around the axis of the driving shaft, glue can be simultaneously dispensed to glue positions distributed in the central symmetry mode, and glue can be dispensed to linear glue positions along with rotation of the driving shaft.

Preferably, the feeding working platform is provided with a conveying belt for feeding the workpiece. The feeding working platform is provided with a conveying belt used for feeding the workpieces, the conveying belt does not need to stop, the workpieces are continuously fed on the conveying belt, and synchronous dispensing is realized in the feeding process.

Preferably, the dispensing head comprises a connecting seat connected with the driving shaft, a cylinder body connected with the connecting seat and a nozzle connected with the cylinder body. The connecting seat is used for being connected with the driving shaft, and when dispensing, the dispensing liquid enters the barrel through the connecting seat and then enters the nozzle through the barrel, and is sprayed out by the nozzle to dispense.

The first object of the present invention is achieved mainly by the following means: the barrel comprises a barrel base with an upper end opening, a cavity arranged in the barrel base and an end cover in threaded connection with the upper end of the barrel base, a nozzle is in threaded connection with the lower end of the barrel base, an adjusting column is arranged in the barrel base, the lower end of the adjusting column penetrates through the lower end of the barrel base and is located in the nozzle, a circulation hole communicated with the cavity and the nozzle is formed in the axis of the adjusting column, the adjusting column comprises a pressurizing boss in sliding sealing with the inner surface of the barrel base and a sliding column coaxially connected with the pressurizing boss, the cavity is divided into an upper part and a lower part by the pressurizing boss, a pressurizing cavity is formed in one part above the pressurizing boss, a piston cavity is formed in one part below the pressurizing boss, a pressure regulating spring is arranged in the piston cavity, and the pressure regulating spring is. The inner part of the cylinder seat is provided with a cavity, the cavity is internally provided with an adjusting column in a penetrating way, the lower end of the adjusting column penetrates through the cylinder seat and then enters the nozzle, a pressurizing boss of the adjusting column is in sliding seal with the inner surface of the cylinder seat, at the moment, the pressurizing boss divides the cavity into an upper part and a lower part, the part above the pressurizing boss is a pressurizing cavity, the part below the pressurizing boss is a piston cavity, and a pressure adjusting spring is arranged in the piston cavity. During assembly, the nozzle is connected to the lower end of the barrel seat in a threaded mode, the sliding column of the adjusting column is sleeved with the pressure adjusting spring, the sliding column penetrates into the barrel seat from an upper end opening of the barrel seat and penetrates through the barrel seat to be inserted into the nozzle, and the pressure adjusting spring is located between the pressurizing boss and the inner bottom surface of the barrel seat. And then the end cover is in threaded connection with the barrel seat, and then the connecting seat is in threaded connection with the end cover, so that the assembly is realized. In the dispensing process, the dispensing liquid enters the pressurizing cavity from the connecting seat, and because the pressurizing boss is in sliding seal with the inner surface of the cylinder seat, the dispensing liquid can not enter the piston cavity but enter the circulation hole with a relatively smaller aperture, and at the moment, the upper end surface of the pressurizing boss is slightly displaced downwards under the pressure of the dispensing liquid sprayed out and compresses the pressure regulating spring. When the valve is closed, the circulation hole is communicated with the outside of the nozzle, the pressure of the dispensing liquid is reduced and finally returns to zero, at the moment, the pressure regulating spring pushes the pressurizing boss to move upwards in a micro-displacement mode, the pressurizing boss applies pressure to the pressurizing cavity, and the dispensing liquid with the same volume as that generated by the micro-displacement of the pressurizing boss in the pressurizing cavity is discharged along the circulation hole to serve as compensation for gluing of the dispensing liquid, so that the dispensing amount obtained by a workpiece is increased, and the dispensing error is reduced.

Preferably, the lower end of the nozzle is conical, a glue outlet hole is formed in the axis of the bottom of the nozzle, a guide cone portion is arranged at the lower end of the sliding column, an extending portion is arranged at the lower end of the guide cone portion and located in the glue outlet hole, a limiting step surface is arranged at the joint of the guide cone portion and the sliding column, an accommodating cavity is formed in the nozzle, the sliding seat and the guide cone portion are located in the accommodating cavity, an auxiliary spring is arranged in the accommodating cavity, the auxiliary spring is sleeved on the outer side of the guide cone portion and located between the limiting step surface and the inner surface of the nozzle, and the accommodating cavity is communicated with the piston. The guide cone part at the lower end of the sliding column is positioned in the nozzle with the lower end being in the cone shape, the extension part at the lower end of the guide cone part is positioned in the glue outlet hole of the nozzle, the glue outlet hole can position and guide the extension part, the positioning assembly of the adjusting column is convenient, and the glue dispensing liquid discharged from the circulation hole is ensured to directly enter the glue outlet hole to be discharged. The junction of direction pyramis and slide column is provided with spacing step face, and the auxiliary spring cover is located the direction pyramis outside and is located between spacing step face and the nozzle internal surface, and spacing step face can be spacing to auxiliary spring, and auxiliary spring can play the auxiliary action when pressure regulating spring resets. Because the sliding column has a gap with the penetrating position of the cylinder base, the piston cavity can be communicated with the containing cavity in the nozzle through the gap, after the pressure regulating spring pushes the pressurizing boss to move upwards slightly, the auxiliary spring delays pressurization for the pressure regulating spring, namely after the compensated glue dispensing is finished, the volume of the pressurizing cavity is reduced, but the volume of the piston cavity is increased, the piston cavity sucks air into the containing cavity through the gap after the volume of the piston cavity is increased, and further the air is sucked inwards along the glue outlet hole, so that the subsequent glued glue is sucked back into the glue outlet hole, and the glue outlet hole not only can be used for positioning and guiding the extension part, but also can be used as a recycling cavity for recycling the glued glue. In the whole process, the pressurizing boss is reset firstly, the glue outlet amount is compensated by matching with the self weight of the glue dispensing liquid, and then the excessive glue dispensing liquid is sucked back by negative pressure.

Therefore, the omnibearing visual dispenser disclosed by the invention has the following advantages: when the feeding workbench horizontally feeds the workpiece, the panoramic camera at the top of the case can penetrate through the positions of all parts in the case in real time, and then the positions of the positioning frame and the dispensing head are observed through the close-up camera. After the close-up camera determines the position of the glue to be dispensed on the workpiece, the control element controls the longitudinal guide rail to slide along the transverse guide rail, the drive positioning frame slides along the longitudinal guide rail to reach the position above the workpiece and feed along with the workpiece, and meanwhile, the drive motor and the adjusting cylinder are started to enable the glue dispensing head to rotate and push the glue dispensing head to be right above the glue dispensing position, so that glue dispensing is achieved. And after dispensing is finished, quickly adjusting the position to dispense the subsequent workpieces, and repeating the action. The whole process is observed by a panoramic camera and a close-up camera, the control element is utilized to control the longitudinal guide rail, the positioning frame, the driving shaft and the adjusting cylinder, automatic positioning and accurate positioning are realized, the whole course of the positioning and dispensing process is followed by a workpiece to adjust the position in real time, the feeding workbench does not need to stop, the workpiece is continuously fed, dispensing is realized in the process, and efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a bottom view of the dispensing head;

FIG. 4 is a cross-sectional view of the dispensing head;

fig. 5 is a partial enlarged view of fig. 4 at B.

Illustration of the drawings: 1-case, 2-panoramic camera, 3-close-up camera, 4-feeding workbench, 5-conveyer belt, 6-transverse guide rail, 7-longitudinal guide rail, 8-positioning frame, 9-driving motor, 10-driving shaft, 11-adjusting cylinder, 12-dispensing head, 13-workpiece, 14-connecting line of axes of two dispensing heads, 15-connecting seat, 16-end cover, 17-cylinder seat, 18-pressurizing cavity, 19-piston cavity, 20-pressurizing boss, 21-sliding column, 22-circulating hole, 23-pressure adjusting spring, 24-nozzle, 25-accommodating cavity, 26-limiting step surface, 27-guiding cone part, 28-auxiliary spring, 29-extending part and 30-glue outlet hole.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

Example 1: as shown in fig. 1, 2 and 3, the omnibearing visual glue dispenser comprises a case 1, a feeding working table 4 and a control element, wherein the feeding working table is positioned in the case, and a conveying belt 5 for feeding a workpiece is arranged on the feeding working table. Inside the machine case is provided with transverse guide 6, transverse guide is on a parallel with the direction of feed of feeding the workstation, sliding connection has the vertical guide 7 of the perpendicular transverse guide of level on the horizontal guide, sliding connection has locating rack 8 on the vertical guide, it is provided with drive shaft 10 to run through on the locating clip, the drive shaft passes through driving motor 9 and drives, the bottom of drive shaft is provided with dispensing head 12, dispensing head passes through adjusting cylinder 11 and links to each other with the drive shaft, machine roof portion is provided with panoramic camera 2, be provided with close-up camera 3 on the locating rack, panoramic camera and close-up camera all are connected on controlling element. The adjusting cylinders are two, the two adjusting cylinders are distributed in a central symmetry mode around the axis of the driving shaft, and a connecting line 14 of the axes of the two dispensing heads passes through the axis of the driving shaft. As shown in fig. 4 and 5, the dispensing head includes a connecting base 15 connected to the driving shaft, a cylinder connected to the connecting base, and a nozzle 24 connected to the cylinder. The barrel comprises a barrel seat 17 with an opening at the upper end, a cavity arranged in the barrel seat and an end cover 16 in threaded connection with the upper end of the barrel seat, the nozzle is in threaded connection with the lower end of the barrel seat, an adjusting column is arranged in the barrel seat, the lower end of the adjusting column penetrates through the lower end of the barrel seat and is positioned in the nozzle, a circulation hole 22 communicated with the cavity and the nozzle is formed in the axis of the adjusting column, the adjusting column comprises a pressurizing boss 20 in sliding seal with the inner surface of the barrel seat and a sliding column 21 coaxially connected with the pressurizing boss, the cavity is divided into an upper part and a lower part by the pressurizing boss, one part positioned above the pressurizing boss is a pressurizing cavity 18, the other part positioned below the pressurizing boss is a piston cavity 19, a pressure adjusting spring 23 is arranged in the piston cavity, and the pressure adjusting spring is. The lower end of the nozzle is conical, a glue outlet hole 30 is formed in the axis of the bottom of the nozzle, a guide cone portion 27 is arranged at the lower end of the sliding column, an extension portion 29 is arranged at the lower end of the guide cone portion and is located in the glue outlet hole, a limiting step surface 26 is arranged at the joint of the guide cone portion and the sliding column, an accommodating cavity 25 is formed in the nozzle, the sliding seat and the guide cone portion are located in the accommodating cavity, an auxiliary spring 28 is arranged in the accommodating cavity, the auxiliary spring is sleeved on the outer side of the guide cone portion and is located between the limiting step surface and the inner surface of the nozzle, and the accommodating cavity is communicated.

The feeding working platform can realize feeding of workpieces, and the transverse guide rail is parallel to the feeding direction of the feeding working platform, namely the feeding direction of the feeding working platform is transverse. And a longitudinal guide rail is connected on the transverse guide rail in a sliding way, and the longitudinal guide rail can be adjusted in a horizontal transverse sliding way along the transverse guide rail. The longitudinal guide rail is connected with a positioning frame in a sliding mode, the positioning frame slides along the longitudinal guide rail, and the direction of the longitudinal guide rail is the horizontal direction perpendicular to the transverse guide rail. When the longitudinal guide rail slides along the transverse guide rail together with the positioning frame, the transverse horizontal position of the positioning frame can be adjusted, and when the positioning frame slides along the longitudinal guide rail, the longitudinal horizontal position of the positioning frame can be adjusted. Run through the drive shaft on the locating rack, the drive shaft passes through driving motor and drives, and driving motor is step motor, can drive shaft corotation and reversal. The driving shaft is connected with an adjusting cylinder, and the adjusting cylinder is connected with a dispensing head. The dispensing head can follow the locating rack and adjust horizontal and fore-and-aft horizontal position, and rethread driving motor drives the drive shaft rotation, makes the dispensing head around the rotatory adjustment position of drive shaft axis, and through adjust cylinder's promotion, can adjust the vertical distance of dispensing head and drive shaft horizontal direction. When the feeding workbench horizontally feeds the workpiece 13, the panoramic camera at the top of the case can penetrate through the positions of all the components in the case in real time, and then the positions of the positioning frame and the dispensing head are observed through the close-up camera. After the close-up camera determines the position of the glue to be dispensed on the workpiece, the control element controls the longitudinal guide rail to slide along the transverse guide rail, the drive positioning frame slides along the longitudinal guide rail to reach the position above the workpiece and feed along with the workpiece, and meanwhile, the drive motor and the adjusting cylinder are started to enable the glue dispensing head to rotate and push the glue dispensing head to be right above the glue dispensing position, so that glue dispensing is achieved. And after dispensing is finished, quickly adjusting the position to dispense the subsequent workpieces, and repeating the action. Whole process is observed with panoramic camera and feature camera, utilizes control element control longitudinal rail, locating rack, drive shaft and adjust cylinder, realizes automatic positioning and accurate location to glue the in-process at the location and follow the real-time adjustment position of work piece in the whole journey, feed the workstation and need not to stop, and the work piece lasts and feeds the in-process and realize gluing, raises the efficiency. The adjusting cylinders are two, the two adjusting cylinders are distributed in a central symmetry mode around the axis of the driving shaft, glue can be simultaneously dispensed to glue positions distributed in the central symmetry mode, and glue can be dispensed to linear glue positions along with rotation of the driving shaft. The feeding working platform is provided with a conveying belt used for feeding the workpieces, the conveying belt does not need to stop, the workpieces are continuously fed on the conveying belt, and synchronous dispensing is realized in the feeding process.

The inner of the cylinder seat of the dispensing head is provided with a cavity, an adjusting column penetrates through the cavity, the lower end of the adjusting column penetrates through the cylinder seat and then enters the nozzle, a pressurizing boss of the adjusting column is in sliding seal with the inner surface of the cylinder seat, at the moment, the pressurizing boss divides the cavity into an upper part and a lower part, wherein the part above the pressurizing boss is a pressurizing cavity, the part below the pressurizing boss is a piston cavity, and a pressure regulating spring is arranged in the piston cavity. During assembly, the nozzle is connected to the lower end of the barrel seat in a threaded mode, the sliding column of the adjusting column is sleeved with the pressure adjusting spring, the sliding column penetrates into the barrel seat from an upper end opening of the barrel seat and penetrates through the barrel seat to be inserted into the nozzle, and the pressure adjusting spring is located between the pressurizing boss and the inner bottom surface of the barrel seat. And then the end cover is in threaded connection with the barrel seat, and then the connecting seat is in threaded connection with the end cover, so that the assembly is realized. In the dispensing process, the dispensing liquid enters the pressurizing cavity from the connecting seat, and because the pressurizing boss is in sliding seal with the inner surface of the cylinder seat, the dispensing liquid can not enter the piston cavity but enter the circulation hole with a relatively smaller aperture, and at the moment, the upper end surface of the pressurizing boss is slightly displaced downwards under the pressure of the dispensing liquid sprayed out and compresses the pressure regulating spring. When the valve is closed, the circulation hole is communicated with the outside of the nozzle, the pressure of the dispensing liquid is reduced and finally returns to zero, at the moment, the pressure regulating spring pushes the pressurizing boss to move upwards in a micro-displacement mode, the pressurizing boss applies pressure to the pressurizing cavity, and the dispensing liquid with the same volume as that generated by the micro-displacement of the pressurizing boss in the pressurizing cavity is discharged along the circulation hole to serve as compensation for gluing of the dispensing liquid, so that the dispensing amount obtained by a workpiece is increased, and the dispensing error is reduced. The guide cone part at the lower end of the sliding column is positioned in the nozzle with the lower end being in the cone shape, the extension part at the lower end of the guide cone part is positioned in the glue outlet hole of the nozzle, the glue outlet hole can position and guide the extension part, the positioning assembly of the adjusting column is convenient, and the glue dispensing liquid discharged from the circulation hole is ensured to directly enter the glue outlet hole to be discharged. The junction of direction pyramis and slide column is provided with spacing step face, and the auxiliary spring cover is located the direction pyramis outside and is located between spacing step face and the nozzle internal surface, and spacing step face can be spacing to auxiliary spring, and auxiliary spring can play the auxiliary action when pressure regulating spring resets. Because the sliding column has a gap with the penetrating position of the cylinder base, the piston cavity can be communicated with the containing cavity in the nozzle through the gap, after the pressure regulating spring pushes the pressurizing boss to move upwards slightly, the auxiliary spring delays pressurization for the pressure regulating spring, namely after the compensated glue dispensing is finished, the volume of the pressurizing cavity is reduced, but the volume of the piston cavity is increased, the piston cavity sucks air into the containing cavity through the gap after the volume of the piston cavity is increased, and further the air is sucked inwards along the glue outlet hole, so that the subsequent glued glue is sucked back into the glue outlet hole, and the glue outlet hole not only can be used for positioning and guiding the extension part, but also can be used as a recycling cavity for recycling the glued glue. In the whole process, the pressurizing boss is reset firstly, the glue outlet amount is compensated by matching with the self weight of the glue dispensing liquid, and then the excessive glue dispensing liquid is sucked back by negative pressure.

It should be understood that this example is only for illustrating the present invention and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

Claims

1. The omnibearing visual dispensing machine is characterized by comprising a machine case, a feeding workbench and a control element, wherein the feeding workbench and the control element are positioned in the machine case, a transverse guide rail is arranged in the machine case and is parallel to the feeding direction of the feeding workbench, a longitudinal guide rail of a horizontal vertical transverse guide rail is slidably connected onto the horizontal guide rail, a positioning frame is slidably connected onto the longitudinal guide rail, a driving shaft penetrates through the positioning frame and is driven by a driving motor, a plurality of dispensing heads are arranged at the bottom of the driving shaft and are connected with the driving shaft through an adjusting cylinder, a panoramic camera is arranged at the top of the machine case, a close-up camera is arranged on the positioning frame, the panoramic camera and the close-up camera are both connected onto the control element, each dispensing head comprises a connecting seat connected with the driving shaft, a barrel body connected with the connecting seat and a nozzle connected with the barrel body, The pressure regulating device comprises a cavity arranged in a cylinder seat and an end cover in threaded connection with the upper end of the cylinder seat, a nozzle is in threaded connection with the lower end of the cylinder seat, a regulating column is arranged in the cylinder seat, the lower end of the regulating column penetrates through the lower end of the cylinder seat and is positioned in the nozzle, a circulation hole communicated with the cavity and the nozzle is formed in the axis of the regulating column, the regulating column comprises a pressurizing boss in sliding sealing with the inner surface of the cylinder seat and a sliding column coaxially connected with the pressurizing boss, the cavity is divided into an upper part and a lower part by the pressurizing boss, one part positioned above the pressurizing boss is a pressurizing cavity, one part positioned below the pressurizing boss is a piston cavity, a pressure regulating spring is arranged in the piston cavity, and the pressure regulating spring is sleeved.

2. The omnibearing vision dispensing machine according to claim 1, wherein the number of the adjusting cylinders is two, the two adjusting cylinders are distributed in a central symmetry manner around the axis of the driving shaft, and a connecting line of the axes of the two dispensing heads passes through the axis of the driving shaft.

3. The machine according to claim 1, wherein said feeding table is provided with a conveyor belt for feeding the workpiece.

4. The omnidirectional visual dispenser according to claim 1, wherein the lower end of the nozzle is tapered, the axis of the bottom of the nozzle is provided with a glue outlet, the lower end of the spool is provided with a guide cone, the lower end of the guide cone is provided with an extension part, the extension part is located in the glue outlet, a limit step surface is arranged at the joint of the guide cone and the spool, the nozzle is internally provided with a receiving cavity, the slide seat and the guide cone are both located in the receiving cavity, the receiving cavity is internally provided with an auxiliary spring, the auxiliary spring is sleeved outside the guide cone and located between the limit step surface and the inner surface of the nozzle, and the receiving cavity is communicated with the piston cavity through a through gap between the spool and the.