CN113926655A

CN113926655A - Manually controlled dispensing machine and dispensing method

Info

Publication number: CN113926655A
Application number: CN202111365058.2A
Authority: CN
Inventors: 谢和力
Original assignee: Shenzhen Chelide Technology Co ltd
Current assignee: Shenzhen Chelide Technology Co ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-01-14

Abstract

A manual control type dispenser and a dispensing method are provided, the dispenser comprises: the device comprises a pressure container, a support, a two-component dispensing valve arranged on the support, two glue inlets communicated with the two glue outlets of the two-component dispensing valve and two pipelines of the pressure container, a glue nozzle combined with the two glue outlets of the two-component dispensing valve, a foot switch, a controller electrically connected with the two-component dispensing valve and the foot switch and used for controlling the two-component dispensing valve to switch among two-way states, one-way states and closed states. The method comprises the following steps: controlling a two-component dispensing valve to be in a two-way state, and rapidly dispensing the product; and after the glue is dispensed rapidly, controlling the two-component glue dispensing valve to be in a single-pass state, and dispensing the glue to the product at a slow speed. Because the earlier stage adopts quick point to glue, and the later stage adopts slow speed point to glue, and wave and bubble that the quick point glued and produced can be eliminated through the slow speed point of later stage.

Description

Manually controlled dispensing machine and dispensing method

Technical Field

The invention relates to the field of dispensing machines, in particular to a manual control type dispensing machine and a dispensing method.

Background

A glue dispenser is a device for filling colloid into an electronic product. According to the control mode, the dispenser can be divided into an automatic dispenser and a manual dispenser.

The automatic control type dispenser has the advantages of high operation efficiency, labor saving and the like, but is complex in structure, high in price and not suitable for small enterprises.

Because the cost is far lower than that of the automatic dispenser, the manual control dispenser has wide market prospect. Manually controlled glue dispensers typically comprise: the glue dispensing valve is supported on the support, a glue inlet of the glue dispensing valve is communicated with the pressure tank, a glue outlet of the glue dispensing valve is provided with a glue nozzle, the glue dispensing valve is electrically connected with an output end of the controller, the foot switch is electrically connected with an input end of the controller, and glue is contained in the pressure tank. During operation, keep the product in jiao zui department with the hand, with foot switch trigger control ware, and then control dispensing valve switches on, and the colloid in the overhead tank is through dispensing valve, fills to the product inside from gluing the mouth, accomplishes the back, through foot switch trigger control ware, and the control dispensing valve is closed, stops to fill the colloid to the product. The manual control type dispenser has the following defects: for the colloid with better fluidity, the colloid is easy to generate wave in the dispensing process, and the colloid overflows; for the colloid with poor fluidity, bubbles are easily generated in the dispensing process, and the condition of less colloid is caused after the bubbles are filled and discharged.

Disclosure of Invention

The invention aims to provide a manual control type dispensing machine and a dispensing method, so as to solve the defects in the related art.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a manually controlled dispenser, comprising:

a pressure vessel for containing a gel;

a support;

the two-component dispensing valve is arranged on the bracket and is provided with two glue inlets and two glue outlets;

two pipelines connecting the two glue inlets with the pressure vessel;

the glue inlet end of the glue nozzle is connected with the two glue outlets;

a foot switch; and

and the controller is electrically connected with the two-component dispensing valve and the foot switch and is used for controlling the two-component dispensing valve to be switched among a two-way state, a one-way state and a closed state.

In the above manual control dispenser, preferably, one of the two pipes is further provided with a throttle valve.

In the above manual control type dispenser, preferably, the dispenser further includes a sensor, the sensor is disposed at a position of one side below the glue nozzle, the controller is electrically connected to the sensor to form a misoperation prevention circuit, and the misoperation prevention circuit is used for preventing the foot switch from triggering the starting of dispensing by mistake.

In the above manual control type dispenser, preferably, the sensor is a diffuse reflection photoelectric switch.

In the above manual control type dispenser, preferably, the controller includes a PLC and a time relay, the time relay is electrically connected to the PLC to form a quantitative dispensing circuit, and the quantitative dispensing circuit is configured to control quantitative dispensing of the dispenser.

In the above manual control type dispenser, preferably, the controller further includes:

the first switch is electrically connected with the input end of the PLC and is used for switching on/off the quantitative dispensing function;

the second switch is electrically connected with the input end of the PLC and is used for turning on/off the anti-misoperation function;

the third switch is electrically connected with the input end of the PLC and is used for switching between a single-component mode and a two-component mode;

and the fourth switch is electrically connected with the input end of the PLC and is used for switching on/off the quantitative-slow automatic switching function, and the quantitative-slow automatic switching function is used for automatically entering slow dispensing after the quantitative dispensing is glued.

A glue dispensing method comprises the following steps:

controlling a two-component dispensing valve to be in a two-way state, so that the two pipelines provide glue for a glue nozzle together, and dispensing the product quickly; and

after the glue is dispensed rapidly, the two-component glue dispensing valve is controlled to be in a single-pass state, so that one of the two pipelines independently provides glue for the glue nozzle and the product is dispensed slowly.

Preferably, the dispensing method further comprises the following steps: and before dispensing is started, adjusting a throttle valve on the pipeline to obtain a target dispensing speed.

Preferably, the dispensing method further comprises the following steps:

before dispensing is started, after a controller receives a trigger signal of a foot switch, whether a product or a human hand exists at a glue nozzle is identified through an inductor, and when the identification result is no, the two-component dispensing valve is locked in a closed state; when the recognition result is that the double-component dispensing valve is in a double-way state, the double-component dispensing valve is controlled to start to dispense glue quickly;

in the dispensing process, the controller identifies whether a product of the glue nozzle or a hand is moved away through the inductor, and controls the two-component dispensing valve to enter a closed state after identifying that the product or the hand is moved away.

Preferably, the dispensing method further comprises the following steps:

before dispensing is started, the controller identifies whether the quantitative dispensing function and the quantitative-slow automatic switching function are started or not by detecting the states of the first switch and the fourth switch;

when the quantitative dispensing function is started and the quantitative-slow automatic switching function is not started, the controller controls the duration time of the fast dispensing through the time relay, and after the fast dispensing is finished, the controller controls the two-component dispensing valve to be in short single-pass for dispensing slowly after receiving the trigger signal of the foot switch again;

when the quantitative dispensing function and the quantitative-slow automatic switching function are both started, the controller controls the duration time of the fast dispensing through the time relay, after the fast dispensing is finished, the controller controls the two-component dispensing valve to be switched to a single-pass state to automatically perform slow dispensing on the product, and in the slow dispensing state, after the controller receives the trigger signal of the foot switch again, the controller controls the two-component dispensing valve to perform short-time single-pass to perform slow dispensing on the product.

Compared with the prior art, the invention has at least the following beneficial effects:

the dispenser has various dispensing speeds, and in the dispensing process of a product, rapid dispensing is adopted in the early stage, slow dispensing is adopted in the later stage, and waves and bubbles generated by the rapid dispensing can be eliminated through the slow dispensing in the later stage. Meanwhile, rapid dispensing is adopted in the early stage, and slow dispensing is adopted in the later stage, so that when the dispensing is full, an operator can timely control the dispensing to stop, overflow is avoided, and the operation efficiency is high.

After further setting up the inductor, on the one hand constitute and prevent the maloperation circuit, can avoid foot switch spurious triggering to start the point and glue, on the other hand compares and stops the point with foot switch control and glues, stops the point and glues with removing product control and has control sensitivity height, is favorable to reducing the characteristics of excessive glue and starving for instance.

After a time relay is further arranged, a mixed dispensing mode combining manual dispensing and quantitative dispensing can be realized, and the labor intensity of an operator can be reduced.

The dispensing control mode is single-speed, multi-speed, quantitative, non-quantitative, foot switch control dispensing start-stop, foot switch and inductor combination control dispensing start-stop and the like, and is suitable for various application occasions.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a dispenser;

FIG. 2 is a schematic diagram thereof;

FIG. 3 is a circuit diagram thereof;

FIG. 4 is a schematic diagram of a panel of the controller;

reference numerals:

1. a pressure vessel; 2. a first conduit; 3. a second conduit; 4. a two-component dispensing valve; 5. a glue nozzle; 6. a substrate; 61. a support; 7. a throttle valve; 8. a diffuse reflection photoelectric switch; 9. a controller; 11. a pressure reducing valve; 12. a main gas pipe; 13. a power converter;

l1, a first indicator light; l2, second indicator light; l3, third indicator light; l4, fourth indicator light; l5, fifth indicator light; l6, sixth indicator light; l7, seventh indicator light; l8, eighth indicator light;

SB1, foot pedal; SB2, power switch; SB3, first switch; SB4, fourth switch; SB5, third switch; SB6, second switch;

KT1, time relay; CT1, counter;

FU, safety switch;

F. an electromagnetic valve.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

Referring to fig. 1 to 2, the manual control dispenser includes: the automatic glue dispensing device comprises a pressure container 1, a support 61, a two-component glue dispensing valve 4, a first pipeline 2, a second pipeline 3, a glue nozzle 5, a foot switch SB1 and a controller 9. The pressure vessel 1, the support 61, and the controller 9 are mounted on a base plate 6.

The pressure container 1 is used for containing the colloid, is provided with relief pressure valve 11 on the pressure container 1, and relief pressure valve 11 links to each other with total trachea 12 gas circuit, provides pressure gas to pressure container 1 inside, presses the colloid in the pressure container 1 to gluey mouth 5, realizes gluing to the product.

The bracket 61 is used for supporting the glue nozzle 5 and the glue dispensing valve.

The dispensing valve is a valve special for a dispensing machine and has two types of pneumatic and electric. The pneumatic dispensing valve is formed by connecting an air cylinder, a valve body and a material cylinder up and down, and the air cylinder and the valve body are separated by advanced sealing materials, so that the glue is prevented from invading the air cylinder. The material cylinder and the air cylinder are connected to the dispensing valve main body and ensure concentricity with the air cylinder. And the solenoid valve F is used for driving the air cylinder to move, so that the central rod is driven to move up and down, and the opening and closing effects on the glue are achieved by utilizing the up-and-down movement of the central rod. According to different ways of turning on and off, the method can be divided into: plunger type dispensing valve, ejector pin type dispensing valve, lifting type dispensing valve, spraying dispensing valve and spraying dispensing valve. The electric dispensing valve comprises a pump body and a driving part, and is simple to install along with the stator. And the stator and the rotor are structurally designed, so that the sealing performance is good. The rotor and the stator pair form a self-sealing structure and are easy to replace. The medium conveying function is realized through the directional rotation action of the rotor in the stator cavity. According to different channel numbers, the dispensing valve is divided into a single-component dispensing valve and a double-component dispensing valve. The two-component dispensing valve has two valve cores which can be closed/opened respectively, is also called an AB dispensing valve and is mainly used for AB dispensing machines.

In this embodiment, the dispensing valve is a pneumatic two-component dispensing valve 4. The two-component dispensing valve 4 is fixed on the bracket 61.

The two-component dispensing valve 4 is provided with two glue inlets and two glue outlets, wherein one glue inlet is communicated with the pressure container 1 through the first pipeline 2, and the other glue inlet is communicated with the pressure container 1 through the second pipeline 3.

One end of the glue nozzle 5 is connected with two glue outlets of the two-component glue dispensing valve 4, in other words, the glue discharged from the two glue outlets is discharged through the same glue nozzle 5.

Two cylinders of the two-component dispensing valve 4 are connected with the air passage of the main air pipe 12.

Two solenoid valves F of the two-component dispensing valve 4 are electrically connected with the controller 9. Under the control of the controller 9, the two-component dispensing valve 4 is switched among a two-way state, a one-way state and a closed state. Under the bi-pass state, the colloid in pressure vessel 1 arranges the glue to gluey mouth 5 through two pipelines of first pipeline 2 and second pipeline 3, realizes quick point gluing. And in the single-pass state, the glue in the pressure container 1 is discharged to the glue nozzle 5 through the second pipeline 3, so that slow glue dispensing is realized. In the closed state, the pressure container 1 cannot discharge the glue to the glue nozzle 5.

The foot switch SB1 is electrically connected to the controller 9 for controlling dispensing.

The glue dispenser has multiple glue dispensing speeds, and in the glue dispensing process of a product, quick glue dispensing is adopted in the early stage, and slow glue dispensing is adopted in the later stage, so that waves and bubbles generated by quick glue dispensing can be eliminated through the slow glue dispensing in the later stage. Because the rapid glue dispensing is adopted in the early stage and the slow glue dispensing is adopted in the later stage, the high operation efficiency can be obtained, and the glue overflow caused by the insufficient operation after the glue dispensing is full can be prevented.

A throttle valve 7 is further arranged on the second pipeline 3, and the flow rate of the colloid in the second pipeline 3 can be adjusted through the throttle valve 7. Like this, can set up the row's of gluing speed of gluing at a slow speed in a flexible way as required, make things convenient for inexperienced operator to further reduce the row's of gluing speed when gluing at a slow speed on the one hand, avoid operating speed to lead to the excessive glue fast inadequately, on the other hand can be better be suitable for the colloid of different mobility.

Further, the dispenser further comprises an inductor, and in this embodiment, the diffuse reflection photoelectric switch 8 is preferably adopted. The diffuse reflection photoelectric switch 8 is fixed on the base plate 6 corresponding to the position of one side below the glue nozzle 5 and is electrically connected with the controller 9, so that an anti-misoperation circuit is formed. The working principle is as follows: the diffuse reflection photoelectric switch 8 identifies whether the glue nozzle 5 has a product, and if no product exists, the controller 9 locks the dispensing valve in a closed state, and the dispensing valve cannot be conducted even if the foot switch SB1 is depressed. It should be understood that in the present invention, the product is held at the glue outlet end of the glue nozzle 5 by a human hand, so that the same purpose can be achieved by detecting the human hand with the sensor. The type of the sensor is not limited to this, and any sensor capable of identifying whether the glue nozzle 5 has a product or a human hand may be used, such as a camera, a CCD sensor, other photoelectric sensors, a pyroelectric infrared sensor, and the like.

The sensor has another function and is used for controlling the stopping of dispensing. After the controller 9 detects that the product of the glue nozzle 5 or the hand holding the product moves away through the sensor, the dispensing valve is controlled to be closed, and dispensing is stopped.

Compare current foot switch control and stop the point and glue, the point is glued with inductor control stop to this embodiment, because the hand is more sensitive than the foot, so the sensitivity that this embodiment control stopped the point and glues is higher, can avoid the action more well and in time the excessive glue that leads to and the starved phenomenon of gluing.

Referring to fig. 2, mains power is supplied to the controller 9 via a power converter 13.

Referring to fig. 3, in the present embodiment, the controller 9 includes a PLC (programmable logic controller) to which a 24V dc power supply supplies power through a safety switch FU. The pins X0-X6 of the PLC are input ends, and the pins Y0-Y3 of the PLC are input ends.

The X0 pin of the PLC is connected with the diffuse reflection photoelectric switch 8, and a first indicator lamp L1 is connected between the X0 pin and a power supply. The state of the diffuse reflection photoelectric switch 8 can be known by the first indicator lamp L1.

The X1 foot of PLC is connected with foot switch SB1, and this X1 foot is connected with second pilot lamp L2 between the power, through second pilot lamp L2, can know the state of foot switch SB 1.

PLC's Y2 foot and Y3 foot link to each other with two solenoid valve F of two ingredient dispensing valve 4 for control two ingredient dispensing valve 4 carries out the state switch, and this Y2 foot is connected with seventh pilot lamp L7, and this Y3 foot is connected with eighth pilot lamp L8, through seventh pilot lamp L7 and eighth pilot lamp L8, can know and be in quick point at present, still glue at a slow speed.

The X2 foot of PLC is connected with time relay KT1, and the coil of time relay KT1 is connected between Y1 foot and ground of PLC, and time relay KT1 constitutes quantitative point glue circuit with PLC, and when time relay KT1 arrived the time of settlement, through X2 foot trigger PLC, PLC control two ingredient point glue valve 4 gets into the closed state by the bi-pass state, perhaps gets into the one-way state by the bi-pass state. Thus, the glue discharging amount of the quick glue dispensing is a fixed value, namely the quantitative glue dispensing. In the quantitative dispensing state, the controller 9 locks the dispensing valve in the two-way state without being controlled by the foot switch SB 1. The glue discharging amount of the quantitative glue dispensing is fixed, and manual intervention is not needed, so that the quantitative glue dispensing device has the characteristics of more accurate glue dispensing and capability of reducing the labor intensity of operators.

The X3 foot of PLC is connected with first switch SB3, and first switch SB3 is used for triggering PLC to open/close quantitative point and glues the function. A third indicator light L3 is connected between the X3 pin and the power supply, and whether the quantitative dispensing function is started or not can be known through the third indicator light L3.

The X4 pin of the PLC is connected with a fourth switch SB4, the fourth switch SB4 is used for triggering the PLC to turn on/off the quantitative-slow automatic switching function, and the quantitative-slow automatic switching function refers to: after the quantitative fast dispensing is finished, the controller 9 controls the automatic switching to the slow dispensing without manual operation. A fourth indicator light L4 is connected between the X4 pin and the power supply, and whether the quantitative-slow automatic switching function is started or not can be known through the fourth indicator light L4.

The X5 pin of the PLC is connected with a third switch SB5, and the third switch SB5 is used for triggering the PLC to switch between the single-component mode and the two-component mode. Under the single component mode, all link to same pressure vessel 1 with two pipelines of first pipeline 2 and second pipeline 3, these two pipelines provide the colloid of same component to gluing mouth 5. In the two-component mode, the two pipes are connected to two pressure vessels containing different colloids, and the two pipes supply the nozzles 5 with different components of the colloids. Therefore, the glue dispenser can be used as a single-component glue dispenser and also can be used as a double-component glue dispenser (namely an AB glue dispenser). A fifth indicator lamp L5 is connected between the X5 pin and the power supply, and the current single-component mode or two-component mode can be known through the fifth indicator lamp L5.

The X6 pin of the PLC is connected with a second switch SB6, and the second switch SB6 is used for triggering the PLC on/off misoperation preventing function. A sixth indicator light L6 is connected between the X6 pin and the power supply, and whether the anti-misoperation function is started or not can be known through the sixth indicator light L6.

The Y0 pin of the PLC is connected with a counter CT1, and the number of products which are subjected to dispensing can be automatically counted.

The panel layout of the controller 9 is shown in fig. 4. A counter CT1, a time relay KT1, a power switch SB2, a first switch SB3, a second switch SB6, a third switch SB5, a fourth switch SB4, and first to eighth indicator lights L1-L8 are provided on the panel.

The panel of the time relay KT1 is provided with a time setting key, and the time value of the time relay KT1 can be adjusted through the time setting key.

In the embodiment, the dispenser is controlled by the PLC, the PLC is provided with a reserved interface, other control inputs or outputs can be increased, programs can be erased and written repeatedly, the functions of the dispenser can be adjusted according to actual conditions, and the dispenser can be connected to automatic control equipment for use. Three dispensing speeds can be realized by changing the program. The invention is not so limited.

The working principle of the dispenser is as follows: the pressure container 1 is connected with an air source after storing colloid to enable the colloid to have certain pressure, the glue outlet of the pressure container 1 is divided into two paths, one path is directly connected to one glue inlet of the two-component glue dispensing valve 4 and is a fast glue outlet, the other path is connected to the other glue inlet of the two-component glue dispensing valve 4 after passing through the throttle valve 7 and is a slow glue outlet, and the glue nozzle 5 is used for combining the two glue outlets of the two-component glue dispensing valve 4 together. The slow glue discharging speed can be adjusted by adjusting the throttle valve 7. The controller 9 controls two solenoid valves F of the two-component dispensing valve 4, the two solenoid valves F control two cylinders of the two-component dispensing valve 4, and the two cylinders drive two valve cores, so that the two valve cores of the two-component dispensing valve 4 are controlled to be opened and closed, the two valve cores are subjected to quick dispensing when being opened simultaneously, and one valve core is closed, and the other valve core (the valve core of the glue supply pipeline with the throttle valve 7) is subjected to slow dispensing when being opened.

It can be understood that, because the two paths of glue discharging speeds are different, the following three speed glue dispensing can be realized: 1. controlling one valve core of the two-component dispensing valve 4 to be opened and the other valve core to be closed; 2. one valve core of the two-component dispensing valve 4 is controlled to be closed, and the other valve core is controlled to be opened; 3. and controlling the two valve cores of the two-component dispensing valve 4 to be opened.

An embodiment dispensing method includes the following steps:

controlling the two-component dispensing valve 4 to be in a two-way state, namely opening both valve cores, so that the first pipeline and the second pipeline provide glue to the glue nozzle 5 in the same direction, and dispensing glue to the product quickly;

after the glue is dispensed rapidly, the two-component glue dispensing valve 4 is controlled to be in a single-pass state, namely one valve core is opened and the other valve core is closed, so that the second pipeline 3 independently provides glue for the glue nozzle 5 and the product is dispensed slowly.

Further, before dispensing is started, an operator can adjust the glue discharging speed of the slow dispensing through the throttle valve 7 on the second pipeline 3. Therefore, the glue can be used by operators with different proficiency degrees on one hand, and can be suitable for glue with different fluidity on the other hand.

After the misoperation prevention function of the dispenser is started. The dispensing method further comprises the following steps: before dispensing is started, after the controller 9 receives a trigger signal of the foot switch SB1, the sensor 8 identifies whether the nozzle 5 has a product. When the identification result is no, locking the two-component dispensing valve 4 in a closed state; and when the identification result is yes, controlling the two-component dispensing valve 4 to enter a two-way state, and starting rapid dispensing. Thus, when the foot switch SB1 is triggered by mistake, dispensing will not be initiated.

After the misoperation prevention function of the dispenser is started. The dispensing method further comprises the following steps: in the dispensing process, the controller 9 identifies whether the product of the glue nozzle 5 is moved away through the inductor 8, and controls the two-component dispensing valve 4 to enter a closed state after identifying that the product is moved away. Therefore, the dispensing is controlled to stop by moving the product away by hand, and compared with the method for controlling to stop dispensing by using the foot switch SB1, the method has higher control sensitivity, is favorable for accurate dispensing and reduces the phenomena of glue overflow and glue shortage.

The dispensing method further comprises the following steps: before dispensing is started, the controller 9 recognizes whether the quantitative dispensing function is turned on by detecting the first switch SB 3. When the quantitative dispensing function is identified to be started, the time relay KT1 is started to start dispensing, and after the time of the time relay KT1 is over, the controller 9 is triggered to control to stop dispensing.

The dispensing method further comprises the following steps:

after the controller 9 receives the trigger signal of the foot switch SB1, before dispensing starts, the controller 9 identifies whether the quantitative dispensing function and the quantitative-slow automatic switching function are on by detecting the states of the first switch SB3 and the fourth switch SB 4;

when the quantitative dispensing function is identified to be started and the quantitative-slow automatic switching function is not started, the time relay KT1 is started, the two-component dispensing valve 4 enters a two-way state, rapid dispensing is started, and after the time of the time relay KT1 is over, the controller 9 is triggered to control the two-component dispensing valve 4 to enter a closed state, and rapid dispensing is stopped. After receiving the trigger signal of the foot switch SB1 again, the controller 9 controls one valve element of the two-component dispensing valve 4 to close, and the other valve element to close after being opened for a short time, so as to dispense the product at a slow speed. When the product is removed from the glue nozzle 5, the sensor 8 sends a trigger signal to the controller 9 to control the two-component glue dispensing valve 4 to enter a closed state, and dispensing is stopped.

When the quantitative dispensing function and the quantitative-slow automatic switching function are both started, the time relay KT1 is started, the two-component dispensing valve 4 enters a two-way state, rapid dispensing is started, and after the time of the time relay KT1 is over, the controller 9 is triggered to control the two-component dispensing valve 4 to enter a one-way state, and the rapid dispensing is automatically switched to slow dispensing. In the slow dispensing state, after the controller 9 receives the trigger signal of the foot switch SB1 again, it controls one valve element of the two-component dispensing valve 4 to close and the other valve element to close after being opened for a short time, and performs slow dispensing on the product. When the product is removed from the glue nozzle 5, the sensor 8 sends a trigger signal to the controller 9 to control the two-component glue dispensing valve 4 to enter a closed state, and dispensing is stopped.

Another embodiment dispensing method includes: the pipeline connected to two glue inlets of the two-component glue dispensing valve 4 is connected with two pressure vessels 1 filled with different glue materials, and after the controller 9 receives a trigger signal of a foot switch SB1, the two valve cores of the two-component glue dispensing valve 4 are controlled to be opened, the two different glue materials are discharged into the glue nozzle 5, and AB glue dispensing is achieved.

The glue dispenser at least has the following characteristics:

1. the mode is many. The existing dispenser only has quantification and is controlled by a foot switch, and generally can only be used for one of single-component glue or double-component glue, and has single speed. The dispenser has a double-speed function, the speed can be switched at any time, and single-component glue and double-component glue can be switched at any time by only adding the pressure container 1 without replacing equipment.

2. The cost is low. All components are commercially available common components and need not be customized. And the equipment has simple structure and low manufacturing cost.

3. Has the function of preventing misoperation. The existing glue dispenser can cause glue discharging of the glue nozzle when a pedal switch is stepped by mistake or pressed by other articles by mistake, and cannot stop in time if a quantitative glue dispensing mode is used. This point gum machine has increased inductor 8, constitutes with controller 9 and prevents the maloperation function, glues mouth 5 through discernment and whether has the product, locks the dispensing valve at the off-state when not having the product, even foot switch SB1 is stepped on, glues mouth 5 and can not arrange the glue yet.

4. The requirement on the skill of an operator is low, and the labor intensity can be reduced.

When the dosage of each product is consistent, the machine can dispense glue quantitatively without observing all the time, and the machine stops automatically after filling. When the usage of each product is different, the quantitative dispensing is used, the slow dispensing function is automatically switched after the quantification is finished, the quantitative dispensing time is adjusted to be the amount which can not overflow all the products, the rest parts are fully dispensed through the slow dispensing, leave the induction area after the products are fully dispensed, and the machine stops working. When the novel hand is used, the slow speed and the fast speed can be switched at any time, the work can be stopped as long as the hand leaves, and hands and feet are not required to be matched simultaneously.

5. Less operator training time. The novice can learn to operate the machine within 5min without the need of simultaneously cooperating hands and feet. The existing glue dispenser needs more than one day at least, the operation needs the coordination of hands and feet, and the phenomenon of insufficient filling or overflow is easy to occur.

6. The production efficiency can be improved. The existing product only has one glue dispensing speed, a beginner can work only by adjusting the speed slowly, glue can overflow when the attention of a skilled person is not focused, later wiping is needed, and the operation time is prolonged. The glue dispenser has two glue dispensing speeds, can control the speed, can work quickly in earlier stage, can timely reduce the glue dispensing speed when being full, increases the reaction time of operators, and reduces the cleaning time in later period.

7. The product quality can be improved. The existing dispensing machine needs hand and foot matching when dispensing is stopped, and the mismatching can cause that filled glue is sucked back to cause glue shortage or the hand leaves the premature glue to leak to a product or a workbench. The dispenser only needs to stop working immediately after the hands leave, and does not need to be matched with hands and feet simultaneously.

8. Can play a role of buffering. The colloid has good fluidity, and can generate wave when the flow speed is too high, and the colloid overflows the shell when the flow speed is full. When the fluidity of the colloid is poor, air bubbles in the inside of the flowing speed is too fast and cannot be discharged in time, and the air bubbles can be discharged after the colloid is filled, so that the condition of less colloid is caused. The dispenser has two dispensing speeds, namely, rapid dispensing is performed firstly, and then the glue is filled through slow dispensing, and the waves and the internal bubbles generated at the earlier stage at a higher speed can be eliminated in the later stage at the slow dispensing.

9. The function is simple. Switch switching is adopted to various functions, the switch setting is at 9 panels of controller to be provided with multiple pilot lamps at this panel, but rapid operation can understand equipment operating condition directly perceived.

10. And PLC control is adopted, so that the expansion and upgrading space is large.

The glue dispenser can be applied to single glue dispensing and AB glue dispensing, can be applied to occasions with fixed glue amount, can also be applied to occasions with inconsistent glue amount, is particularly suitable for occasions with inconsistent glue amount, and is also particularly suitable for novice operators to use.

The present invention has been described in detail with reference to the specific embodiments, and the detailed description is only for the purpose of helping those skilled in the art understand the present invention, and is not to be construed as limiting the scope of the present invention. Various modifications, equivalent changes, etc. made by those skilled in the art under the spirit of the present invention shall be included in the protection scope of the present invention.

Claims

1. A manual control formula point gum machine which characterized in that includes:

a pressure vessel for containing a gel;

a support;

two pipelines connecting the two glue inlets with the pressure vessel;

the glue inlet end of the glue nozzle is connected with the two glue outlets;

a foot switch; and

2. The manually controlled dispenser according to claim 1, wherein one of said two conduits is further provided with a throttle valve.

3. The manual control type dispenser according to claim 1, further comprising a sensor disposed at a position below the dispensing nozzle, wherein the controller is electrically connected to the sensor to form a circuit for preventing the foot switch from triggering dispensing by mistake.

4. The manually controlled dispenser of claim 3, wherein the sensor is a diffuse reflectance optoelectronic switch.

5. The manual control type dispenser according to claim 3, wherein the controller comprises a PLC and a time relay, the time relay is electrically connected with the PLC to form a quantitative dispensing circuit, and the quantitative dispensing circuit is used for controlling quantitative dispensing of the dispenser.

6. The manually controlled dispenser of claim 5, wherein the controller further comprises:

7. A dispensing method is characterized by comprising the following steps:

8. The dispensing method of claim 7, further comprising the steps of: and before dispensing is started, adjusting a throttle valve on the pipeline to obtain a target dispensing speed.

9. The dispensing method of claim 7, further comprising the steps of:

10. The dispensing method of claim 7, further comprising the steps of: