CN201921818U

CN201921818U - Glue dispensing device

Info

Publication number: CN201921818U
Application number: CN2010206943321U
Authority: CN
Inventors: 娄双玲
Original assignee: Skyworth LCD Shenzhen Co Ltd
Current assignee: Skyworth LCD Shenzhen Co Ltd
Priority date: 2010-12-31
Filing date: 2010-12-31
Publication date: 2011-08-10
Anticipated expiration: 2020-12-31

Abstract

The utility model provides a glue dispensing device, which comprises an injection glue barrel, a live coil, a needle and a pusher piston. The injection glue barrel is provided with a discharge outlet at the bottom end, the live coil is wound outside the injection glue barrel, an external alternating-current signal driving module for adjusting and controlling output current and signal period is connected to the live coil, the needle is sleeved to the discharge outlet of the injection glue barrel, and a permanent magnet is disposed in the pusher piston positioned inside the injection glue barrel and below the live coil. Therefore, the live coil is utilized to generate magnetic field and the pusher piston consisting of the permanent magnet is disposed below the live coil, so that the pusher piston is constantly affected by suction and thrust in the magnetic field generated by the live coil to move vertically so as to press glue in the injection glue barrel into a nozzle of the needle. The glue dispensing device effectively solves the problems that the glue dispensing process needs to be carried out by the aid of controllers, giant air compressor equipment and injection needle tubes, and precision control is difficult.

Description

Point glue equipment

Technical field

The utility model belongs to the spot gluing equipment technical field, relates in particular to the accurately point glue equipment of control of a kind of non-vapour-pressure type.

Background technology

In the industries such as electronic product manufacturing industry, articles of dress, watchmaking, often need point glue equipment.Current domestic point gum machine is to form with controller, air compressor machine and injection needle, the Compressed Gas that utilizes air compressor machine to produce promotes plastic emitting, regulates what and the control water clock of telling the glue amount by the positive negative direction of controlling compressed-air actuated size, duration and air pressure.This working method at first will be equipped with an air compressor machine, or builds a pneumatics website, and equipment is huge, is difficult for moving.Next is owing to compressed-air actuated operating pressure instability, and the variation of colloid viscosity, and the speed of colloid injection also fluctuates, and gel quantity is accurately controlled certain degree of difficulty.Have, injection needle adopts common needle tubing again, can not stir inner colloid, and the composition of each plastic emitting changes in the time of can causing volume production, influences yield.

In sum, be necessary to design a kind of new point glue equipment, overcome above-mentioned disappearance.

The utility model content

The purpose of this utility model is to overcome the defective of prior art, provides a kind of and can accurately control gel quantity, prevents water clock and had the point glue equipment that stirs the colloid function.

For solving the problems of the technologies described above, the utility model provides a kind of point glue equipment, comprise that the bottom has an injection packing element of discharging opening, described point glue equipment also comprises: hot-wire coil, its winding is on the outside of described injection packing element, and outside connection of described hot-wire coil regulated control output current and the AC signal driver module of signal period; One syringe needle is set on the discharging opening of described injection packing element; One pushing piston is provided with permanent magnet in it, described pushing piston is positioned at described injection packing element and is located at the below of described hot-wire coil.

Further, described pushing piston periphery is covered with a support, and described support has an overhead gage and push pedal once, and described push pedal down is contained in the described syringe needle.

Further, described syringe needle has a matrix, is arranged with two relative grooves at the inwall of described matrix, and the described two ends of push pedal down are installed with in described groove.

Further, be provided with at least one magnet rotor between the described hot-wire coil, the pole pair of described magnet rotor should described pushing piston.

Further, described magnet rotor can be magnet or magnet steel or magnetite or magnet or electromagnet.

Further, described AC signal driver module comprises the signal generation component, regulates Control Component and parameter setting and display module, by the amplitude of AC signal in the described hot-wire coil of current drives module controls and time of electric current in the same way.

The utlity model has following technique effect:

1, the utility model point glue equipment, utilize hot-wire coil to produce magnetic field, and below hot-wire coil, place a pushing piston that constitutes by permanent magnet, like this, can make pushing piston in the magnetic field that hot-wire coil produces, be subjected to the effect of suction or thrust, produce upper and lower displacement, the colloid in the injection packing element is urged in the nozzle of syringe needle;

2, the utility model structure is arranged with two relative grooves at the inwall of described matrix, can prevent that the excessive injection packing element inside that moves on to of the suction that is subjected to owing to pushing piston from producing spinning motion and then can not return to the origin-location;

3, the utility model utilizes the AC signal driver module, by the amplitude of the AC signal in the current drives module controls hot-wire coil and time of electric current in the same way, utilizes the gel quantity that the amplitude of control alternating current and cycle can accurately control syringe needle;

4, the utility model further is provided with at least one magnet rotor between hot-wire coil, first, magnet rotor can also rotate when being subjected to the change in polarity of hot-wire coil internal magnetic field, colloid in the injection packing element is played the effect of stirring, avoided colloid in the injection packing element, to mix inhomogeneous problem, simultaneously, magnet rotor has the effect of the magnetic of strengthening magnetic field that hot-wire coil produces;

5, the support that the pushing piston periphery is covered with overhead gage and following push pedal, when pushing piston is subjected to thrust, pushing piston moves to the nozzle direction, and overhead gage will be injected colloid in the packing element and further in the syringe needle, and following push pedal will inject the interior colloid propulsion nozzle of packing element; When pushing piston was subjected to suction, pushing piston contrainjector direction moved, and push pedal stops the promotion to colloid in the syringe needle under driving, and has avoided producing the phenomenon of water clock, simultaneously, and the simple in structure and convenient colloid that promotes of overhead gage and following push pedal;

6, the permanent magnet of the utility model pushing piston inside is placed on the below of injecting in the packing element and being located at hot-wire coil, though its position is fixing immutable, but because the N/S extreme direction in the magnetic field that its corresponding hot-wire coil forms can change, so the permanent magnet N/S extreme direction position of pushing piston inside can arbitrarily be placed, avoided operator's N/S utmost point and can cause setup error to go wrong respectively when permanent magnet is installed.

Description of drawings

Fig. 1 is the utility model example structure point glue equipment generalized section;

Fig. 2 is the syringe needle generalized section of band pushing piston among the utility model embodiment;

The embodiment label

Point glue equipment 1 injection packing element 11 discharging openings 111 outsides 112

Hot-wire coil 12 driver modules 13 syringe needles 14 nozzles 141

Matrix 142 grooves 143 pushing pistons 15 permanent magnets 151

153 times push pedals of support 152 overhead gages, 154 magnet rotors 16

The specific embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

The utility model is based on the Ampere's law principle, and Ampere's law also is right-hand screw rule, is that expression electric current and electric current excite the rule that concerns between the magnetic induction line direction in magnetic field; Ampere's law in the hot-wire coil (Ampere's law one): hold electromotion straight wire with the right hand, allow thumb point to sense of current, so four sensings that refer to be exactly magnetic induction line around direction; Ampere's law in the energization solenoid (Ampere's law two): hold energization solenoid with the right hand, make four to refer to that bending is consistent with the sense of current, that end of thumb indication is the N utmost point of energization solenoid so.By changing the electric current in the coil, the magnetic direction that hot-wire coil produces is also along with changing (being that hot-wire coil is a magnetic bodies that polarity changes repeatedly), because magnetic bodies is subjected to the same sex and repels mutually in magnetic field, the effect that there is a natural attraction between the sexes draws, like this, being arranged on permanent magnet under the hot-wire coil can change along with the magnetic direction that hot-wire coil produces and constantly be subjected to suction or thrust.

Referring to Fig. 1-Fig. 2, the utility model embodiment provides a kind of point glue equipment 1 according to above-mentioned design, comprise that the bottom has an injection packing element 11 of discharging opening 111, described point glue equipment 1 also comprises: hot-wire coil 12, its winding is on the outside 112 of described injection packing element 11, and described 12 outside connections of hot-wire coil are regulated control output current and the AC signal driver module 13 of signal period; One syringe needle 14 is set on the discharging opening 111 of described injection packing element 11; One pushing piston 15 is provided with permanent magnet 151 in it, described pushing piston 15 is positioned at described injection packing element 11 and is located at the below of described hot-wire coil 12.Like this, utilize hot-wire coil 12 to produce magnetic field and pushing piston 15 that constitutes by permanent magnet 151 of placement below hot-wire coil 12, can make pushing piston 15 in the magnetic field that hot-wire coil 12 produces, constantly be subjected to the effect of suction or thrust, produce upper and lower displacement, colloid in the injection packing element 11 is urged in the nozzle 141 of syringe needle 14, therefore, the utility model structure has solved effectively need utilize controller, huge air compressor machine equipment and injection needle carry out gluing process, and accurately control the big problem of difficulty, simultaneously, this package unit structure is simpler, and it is especially convenient to operate.

Preferably, the utility model specific embodiment is an example with the sealing adhesive process that the fluorescent material that adds jaundice light with blue LED prepares white light LED part, proportioning Silicone (silicones) sealing and fluorescent material (not shown) are injected into after de-bubble is stirred in the injection packing element 11.

Further, referring to shown in Figure 1, in the utility model specific embodiment structure, the periphery of described pushing piston 15 is covered with a support 152, the profile of the profile of support 152 and pushing piston 15 is much the same, and wherein said support 152 has an overhead gage 153 and a following push pedal 154; Following push pedal 154 is contained in the described syringe needle 14, overhead gage 153 and following push pedal 154 all are the structure of flat, need to prove in other embodiments, support 152 also can only have overhead gage 153 and following push pedal 154, (being the top and bottom that overhead gage 153 and following push pedal 154 are separately positioned on pushing piston 15), simultaneously, overhead gage 153 and following push pedal 154 also not only are confined to be the structure of flat, in principle as long as overhead gage 153 and following push pedal 154 can effectively promote to inject Silicone (silicones) sealing and the fluorescent material that stores in the packing element 11.

Referring to Fig. 1-shown in Figure 2, the nozzles 141 that described syringe needle 14 has a matrix 142 and extends downwards from described matrix 142 are arranged with two relative grooves 143 at the inwall of described matrix 142, and the described two ends of push pedal 154 down are installed with in described groove 143; Push pedal 154 moved upward under its further groove 143 can be supported and be ended, and can prevent that excessive injection packing element 11 inside that move on to of the suction that is subjected to owing to pushing piston 15 from producing spinning motion and then can not return to the origin-location; When being subjected to thrust, pushing piston 15 moves to nozzle 141 directions at pushing piston 15, and the colloid that overhead gage 153 will be injected in the packing element 11 draws in the syringe needle 14, and following push pedal 154 will be injected the colloid propulsion nozzle 141 in the packing element 11; When pushing piston 15 is subjected to suction, pushing piston 15 contrainjectors 141 directions move, push pedal 154 stops the promotion to colloids in the syringe needle 14 under driving, avoided producing the phenomenon of water clock, simultaneously, simple in structure and convenient Silicone (silicones) sealing and the fluorescent material of promoting of overhead gage 153 and following push pedal 154.

Further, be provided with a magnet rotor 16 between the hot-wire coil 12 of the utility model embodiment, the pole pair of described magnet rotor 16 should described pushing piston.The axis of the axis of specifically described pushing piston 15 and described magnet rotor 16 coincides, first, magnet rotor 16 can also rotate when being subjected to the change in polarity of hot-wire coil 12 internal magnetic fields, the effect that Silicone (silicones) sealing in the injection packing element 11 and fluorescent material are played stirring, avoided Silicone (silicones) sealing in injection packing element 11, to mix inhomogeneous problem with fluorescent material, simultaneously, magnet rotor 16 has the effect of the magnetic of strengthening hot-wire coil 12 magnetic field that produces;

Further, described magnet rotor 16 can be magnet or magnet steel or magnetite or magnet or electromagnet.

Referring to shown in Figure 2, the permanent magnet 151 of the utility model pushing piston 15 inside is positioned at discharging opening 111 places and is located at the below of hot-wire coil 12, permanent magnet 151 faces with magnet rotor 16 should, the fixed-site of permanent magnet 151 is immutable, but, because the N/S extreme direction in the magnetic field that its corresponding hot-wire coil 12 forms can change, so the N/S extreme direction position of the permanent magnet 151 of pushing piston 15 inside can arbitrarily be placed, can N extremely near magnet rotor 16, also can S extremely near magnet rotor 16, successively place to put upside down and can not have any problem, avoided operator's N/S utmost point and can cause setup error to go wrong respectively when permanent magnet 151 is installed.

In the utility model specific embodiment structure, described AC signal driver module 13 comprises the signal generation component, regulate Control Component and parameter setting and display module, by the amplitude of AC signals in the described hot-wire coil 12 of current drives module 13 control and time of electric current in the same way, particularly, amplitude and the cycle parameter that exchanges the driving signal is set according to gel quantity, AC signal is applied to the two ends of hot-wire coil, the magnetic field that the coil polarization cycle changes, for fixing permanent magnet, the amplitude and the cycle that exchange by control, gel quantity that can accurate control points adhesive dispenser 1.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. a point glue equipment comprises that the bottom has one of discharging opening and injects packing element, it is characterized in that described point glue equipment also comprises:

Hot-wire coil, its winding are on the outside of described injection packing element, and outside connection of described hot-wire coil regulated control output current and the AC signal driver module of signal period;

One syringe needle is set on the discharging opening of described injection packing element;

One pushing piston is provided with permanent magnet in it, described pushing piston is positioned at described injection packing element and is located at the below of described hot-wire coil.

2. point glue equipment as claimed in claim 1 is characterized in that: described pushing piston periphery is covered with a support, and described support has an overhead gage and push pedal once, and described push pedal down is contained in the described syringe needle.

3. point glue equipment as claimed in claim 2 is characterized in that: described syringe needle has a matrix, is arranged with two relative grooves at the inwall of described matrix, and the described two ends of push pedal down are installed with in described groove.

4. point glue equipment as claimed in claim 1 is characterized in that: be provided with at least one magnet rotor between the described hot-wire coil, the pole pair of described magnet rotor should described pushing piston.

5. point glue equipment as claimed in claim 4 is characterized in that: described magnet rotor is magnet or magnet steel or magnetite or magnet or electromagnet.

6. point glue equipment as claimed in claim 1, it is characterized in that: described AC signal driver module comprises the signal generation component, regulates Control Component and parameter setting and display module, by the amplitude of AC signal in the described hot-wire coil of current drives module controls and time of electric current in the same way.