CN211412554U

CN211412554U - LCOS dispensing constant temperature control device

Info

Publication number: CN211412554U
Application number: CN201921769635.2U
Authority: CN
Inventors: 殷雪敏
Original assignee: Dongguan Huixinchen Electronic Technology Co ltd
Current assignee: Dongguan Huixinchen Electronic Technology Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-09-04
Anticipated expiration: 2029-10-18

Abstract

The utility model relates to the technical field of LCOS adhesive deposite device, disclose LCOS point glue constant temperature control device, including packing element, the constant temperature structure, the fixing base that are used for the constant temperature that are equipped with the sealed glue, the dispensing valve and the dispensing syringe needle that are used for supplying the sealed glue to get into, packing element and fixing base are the intercommunication and arrange, and dispensing valve and fixing base are fixed and the intercommunication is arranged with the dispensing valve; the constant temperature structure and the fixed seat are fixedly arranged, and the constant temperature structure surrounds and surrounds the dispensing valve. During the dispensing operation, a certain pressure is simultaneously applied to the dispensing valve and the glue barrel, so that the sealant filled in the glue barrel enters the dispensing valve and is discharged from the dispensing needle head, and the marking dispensing is realized; because the thermostatic structure encircles and surrounds the dispensing valve, and the thermostatic structure is controlled with the circuit, get the demand according to the operation of marking off point, set for the required homothermal temperature of marking off dispensing valve, no matter how much external environment temperature changes like this, do not influence the temperature in the dispensing valve all the time to the stability and the quality of marking off point are guaranteed.

Description

LCOS dispensing constant temperature control device

Technical Field

The patent of the utility model relates to a LCOS adhesive deposite device's technical field particularly, relates to LCOS adhesive deposite thermostatic control device.

Background

Dispensing, also called glue applying, glue spreading, glue pouring, glue dripping and the like, is to paint, encapsulate and drip electronic glue, oil or other liquid on a product, so that the product has the functions of pasting, encapsulating, insulating, fixing, surface smoothing and the like.

LCOS chips, i.e., liquid crystal with silicon, also called liquid crystal on silicon, are a matrix liquid crystal display device based on a reflective mode and having a very small size; during LCOS chip production, dispensing operation is required.

In the prior art, in the dispensing of the LCOS chip, sealant is filled in a needle cylinder and connected with a dispensing valve, the dispensing valve and the needle cylinder filled with the sealant apply a certain pressure at the same time, and the sealant is scribed on a designated position of the LCOS chip through a needle head at the lower end of the dispensing valve, so that scribing and dispensing of the LCOS chip are realized.

Because the dispensing valve is directly exposed in the air, the quality of the marked line is obviously affected by the change of temperature and humidity in the air, and the glue yield is uneven during marking.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a constant temperature control device is glued to LCOS point aims at solving prior art, and when the LCOS chip was marked line and is glued the operation, the not good problem of quality is glued to the point.

The utility model discloses a realize like this, LCOS point is glued constant temperature control device, including the packing element that is equipped with sealed glue, be used for the constant temperature structure of constant temperature, fixing base, be used for the dispensing valve and the point syringe needle that supply sealed glue to enter into, the packing element with the fixing base is the intercommunication and arranges, the dispensing valve with the fixing base is fixed and the intercommunication arranges, the point syringe needle with the dispensing valve is fixed and the intercommunication arranges; the thermostatic structure with the fixing base is fixed arrangement, just the thermostatic structure encircles and surrounds the dispensing valve.

Further, the constant temperature structure comprises a shell and a heating sheet heated by electrification, and the heating sheet is arranged inside the shell; the casing with the fixing base is fixed arrangement, the heating plate is to enclose and surrounds the dispensing valve is arranged.

Further, the heating sheet is provided with a heating surface facing the dispensing valve and a back surface departing from the dispensing valve, and a heat insulation sheet is arranged on the back surface of the heating sheet; the heat insulation sheet and the heating sheet are fixedly arranged, and the heat insulation sheet and the shell are relatively fixedly arranged.

Furthermore, the heating surface of heating plate is along deviating from the valve direction is sunken to form the alignment groove of gluing, the valve card of gluing is established the alignment groove.

Furthermore, the shell is provided with a plurality of ventilation channels and a heat dissipation port communicated with the outside, the inner ends of the ventilation channels are communicated with the fixed seat, and the outer ends of the ventilation channels are communicated with the heat dissipation port; the shell is provided with a sealing cover sheet for sealing the heat dissipation opening.

Further, the shell is provided with a mounting groove which is arranged in a surrounding manner, the mounting groove is provided with a top opening, and the heating plate is movably inserted into the mounting groove through the top opening; when constant temperature treatment is carried out, the heating plate is inserted into the installation groove, and the heating plate blocks the inner end of the ventilation channel.

Furthermore, the constant temperature structure comprises a control element and a temperature sensor, the heating plate and the temperature sensor are respectively connected with the control element, and the control element controls the heating temperature of the heating plate; the temperature sensor is abutted against and fixes the heating plate.

Furthermore, the rubber cylinder comprises a cylinder body and a push rod, one end of the push rod is movably embedded into the cylinder body, and the other end of the push rod extends to the outside of the cylinder body; the barrel is provided with an inner wall, the inner wall encloses to form a storage space, sealant is arranged in the storage space, and the outer surface of the push rod abuts against the inner wall.

Further, the barrel body comprises a longitudinal barrel and a transverse barrel, the longitudinal barrel and the fixed seat are arranged in parallel and correspondingly, and the transverse barrel and the fixed seat are arranged vertically; one end of the transverse cylinder is communicated with the longitudinal cylinder, and the other end of the transverse cylinder is embedded into the constant temperature structure and is communicated with the dispensing valve.

Further, the longitudinal cylinder comprises a large-diameter section and a small-diameter section, the top of the small-diameter section is communicated with the large-diameter section, and the bottom of the small-diameter section is communicated with one end of the transverse cylinder; the diameter of the large-diameter section is larger than that of the small-diameter section.

Compared with the prior art, the LCOS dispensing constant temperature control device provided by the utility model can apply a certain pressure to the dispensing valve and the glue cylinder simultaneously when the marking dispensing operation is carried out, so that the sealant filled in the glue cylinder enters the dispensing valve and is discharged from the dispensing needle head, and the marking dispensing is realized; in the scribing and dispensing operation process, the thermostatic structure surrounds and surrounds the dispensing valve, so that the dispensing valve is prevented from being exposed, the thermostatic structure is controlled by a circuit, the required constant-temperature of the scribing and dispensing valve is set according to the requirement of scribing and dispensing operation, and the temperature in the dispensing valve is not influenced no matter how much the external environment temperature changes, so that the stability and the quality of scribing and dispensing are ensured.

Drawings

Fig. 1 is a schematic front view of an LCOS dispensing thermostatic control device provided by the present invention;

fig. 2 is a schematic cross-sectional view of the LCOS dispensing thermostatic control device provided by the present invention;

fig. 3 is a schematic plan layout view of the LCOS dispensing thermostatic control device provided by the present invention;

fig. 4 is a schematic plan layout view of the LCOS dispensing thermostatic control device provided by the present invention;

fig. 5 is a schematic perspective view of a heating plate of the LCOS dispensing thermostatic control device provided by the present invention;

fig. 6 is a circuit connection schematic diagram of the LCOS dispensing thermostatic control device provided by the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following describes the implementation of the present invention in detail with reference to specific embodiments.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Referring to fig. 1-6, the preferred embodiment of the present invention is shown.

The utility model provides a constant temperature control device is glued to LCOS point for when solving the LCOS chip and marking off the operation of gluing, the not good problem of quality is glued to the point.

The LCOS dispensing constant temperature control device comprises a rubber cylinder 20, a constant temperature structure 10, a fixed seat 50, a dispensing valve 30 and a dispensing needle head 40, wherein sealant is filled in the rubber cylinder 20, the constant temperature structure 10 is used for keeping constant temperature, the dispensing valve 30 is used for allowing the sealant to enter, the rubber cylinder 20 is communicated with the fixed seat 50, the dispensing valve 30 is fixedly arranged with the fixed seat 50, and the dispensing needle head 40 is fixedly communicated with the dispensing valve 30; the thermostatic structure 10 and the fixing seat 50 are fixedly arranged, and the thermostatic structure 10 surrounds and surrounds the dispensing valve 30.

When the LCOS dispensing thermostatic control device performs the scribing dispensing operation, the dispensing valve 30 and the glue cylinder 20 simultaneously apply a certain pressure to make the sealant filled in the glue cylinder 20 enter the dispensing valve 30 and then be discharged from the dispensing needle 40, so as to realize scribing dispensing; in the scribing and dispensing operation process, the thermostatic structure 10 surrounds and surrounds the dispensing valve 30, so that the dispensing valve 30 is prevented from being exposed, the thermostatic structure 10 is controlled by a circuit, the required constant temperature of the scribing and dispensing valve 30 is set according to the requirement of scribing and dispensing operation, and the temperature in the dispensing valve 30 is not influenced no matter how much the external environment temperature changes, so that the stability and the quality of scribing and dispensing are ensured.

Under the action of the constant temperature structure 10, the scribing efficiency is improved by 30%, and the yield is improved by 10% on the original basis.

The constant temperature structure 10 comprises a shell and a heating plate 11 heated by electrifying, wherein the heating plate 11 is arranged in the shell; the shell and the fixed seat 50 are fixedly arranged, and the heating plate 11 is arranged in a surrounding manner to surround the dispensing valve 30; thus, the heating chip 11 generates heat, and the temperature in the dispensing valve 30 is controlled.

The heating sheet 11 has a heating surface facing the dispensing valve 30 and a back surface facing away from the dispensing valve 30, and the back surface of the heating sheet 11 is provided with a heat insulation sheet 70; the heat insulation sheet 70 and the heating sheet 11 are fixedly arranged, and the heat insulation sheet 70 and the shell are relatively fixedly arranged; under the effect of heat shield 70, effectively avoid the temperature conduction of heating plate 11 to the casing, lead to calorific loss, and avoid the casing to cause operating personnel to scald, provide the operation security.

The heat insulation sheet 70 is made of glass fiber material, and has good insulation, strong heat resistance, good corrosion resistance and high mechanical strength, but has the defects of brittle property and poor wear resistance.

The casing has an inward inner end face, and the inner end face of the loss casing is provided with a fireproof layer made of quartz materials.

The heating surface of the heating plate 11 is recessed along the direction departing from the dispensing valve 30 to form a positioning groove, and the dispensing valve 30 is clamped with the positioning groove; in this way, the relatively fixed arrangement of the dispensing valve 30 and the housing is facilitated, and the setting of the dispensing valve 30 is facilitated.

The heating sheet 11 is arranged in a circular ring shape or a cylindrical shape, which is beneficial to the heating uniformity of the dispensing valve 30, so that the internal sealant of the dispensing valve 30 can be fully heated, the constant temperature is kept, and the scribing and dispensing quality is improved.

The shell is provided with a plurality of ventilation channels and radiating ports communicated with the outside, the inner ends of the ventilation channels are communicated with the fixed seat 50, and the outer ends of the ventilation channels are communicated with the radiating ports; the shell is provided with a sealing cover sheet for sealing the heat dissipation opening; therefore, when the heating is not carried out, the heat dissipation and the temperature reduction inside the shell are realized through the ventilation channel.

The shell is provided with a mounting groove which is arranged in a surrounding manner, the mounting groove is provided with a top opening, and the heating plate 11 is movably inserted into the mounting groove through the top opening; when the constant temperature treatment is carried out, the heating sheet 11 is inserted into the installation groove, and the heating sheet 11 blocks the inner end of the ventilation channel; thus, when the heating plate 11 is inserted into the installation groove, the ventilation channel is blocked, an operator can carry out constant temperature control, and when the heating plate 11 is pulled out, the ventilation channel is opened through the cover sealing plate, so that the heat dissipation and the temperature reduction inside the shell are realized.

The constant temperature structure 10 comprises a control part 60 and a temperature sensor, the heating sheet 11 and the temperature sensor are respectively connected with the control part 60, and the control part 60 controls the heating temperature of the heating sheet 11; the temperature sensor is abutted against the fixed heating sheet 11; under the action of the temperature sensor, the temperature monitoring of the heating plate 11 is realized.

Set up a plurality of temperature sensor, a plurality of temperature sensor are connected with control 60 respectively and arrange, and each temperature sensor arranges in the point gum valve 30 different positions relatively, realizes the temperature monitoring to different positions, improves and detects accurate nature.

The temperature sensor may also be a non-contact temperature sensor, which monitors the temperature inside the housing and detects the temperature at which the dispensing valve 30 is heated.

The control part 60 adopts a single chip microcomputer with the model number of AT89C51, the single chip microcomputer of AT89C51 compares the data collected by the temperature sensor with the set data, the result is obtained by using a PID algorithm, and the heating sheet 11 is controlled to be electrified and heated, so that the temperature of the dispensing valve 30 is controlled AT the set temperature.

The temperature sensor senses the temperature of the heating sheet 11, converts the temperature into a usable output signal, transmits the usable output signal to the control part 60, compares the acquired data with the set data, and controls the temperature of the dispensing valve 30 to be the set temperature.

The temperature sensor continuously measures the temperature of the heating plate, and continuously stores new measurement results in the high-speed temporary storage RAM, and the storage is shown in the following table:

low byte:

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

2³

2²

2¹

2⁰

2^-1

2^-2

2^-3

2^-4

high byte:

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

S

2⁶

2⁵

2⁴

the measured temperature value is put in two bytes, the high 5 bits of the high byte are coincidence bits, if the 5 bits are all '0', the symbol is positive, and the measured temperature is a positive value; if the 5 bits are all "1", the sign is negative and the measured temperature is negative.

The lower 3 bits of the high byte and the 8 bits of the low byte, 11 bits in total, are the measured value portions.

If the measured value is positive, multiplying the value by 0.0625 to obtain the actual measured temperature; when the measured value is negative, the absolute value of the actual measured temperature can be obtained by multiplying the numerical value by 0.0625 after the numerical value is compensated.

Specifically, the rubber cylinder 20 comprises a cylinder body and a push rod 24, one end of the push rod 24 is movably embedded into the cylinder body, and the other end of the push rod 24 extends to the outside of the cylinder body; the barrel is provided with an inner wall, the inner wall encloses to form a storage space, the sealant is arranged in the storage space, and the outer surface of the push rod 24 is abutted against the inner wall; the push rod 24 is moved and pressed downwards to exert acting force on the sealant, so that the sealant can enter the sealant inlet valve 30 conveniently.

And the outer surface of the push rod 24 is abutted against the inner wall, so that the sealing effect is ensured, and the push rod 24 can apply acting force on the sealant conveniently.

The outer surface of the push rod 24 is attached with a sealing layer, the sealing layer is abutted against the inner wall, abrasion between the push rod 24 and the inner wall is reduced, and meanwhile, the push rod 24 is enabled to exert acting force on the sealing glue.

The barrel body comprises a longitudinal barrel and a transverse barrel 23, the longitudinal barrel and the fixed seat 50 are arranged in parallel and correspondingly, and the transverse barrel 23 and the fixed seat 50 are arranged vertically; one end of the transverse cylinder 23 is communicated with the longitudinal cylinder, and the other end of the transverse cylinder 23 is embedded into the constant temperature structure 10 and is communicated with the dispensing valve 30; the benefit that sets up like this lies in, makes sealed glue be in horizontal transmission to the point in the valve 30 of gluing in a horizontal section of thick bamboo 23, provides stability and the stationarity of carrying, simultaneously, makes the sealed glue of entering in the valve 30 of gluing thermally equivalent more, guarantees the effect of gluing.

Furthermore, the longitudinal cylinder comprises a large-diameter section 21 and a small-diameter section 22, the top of the small-diameter section 22 is communicated with the large-diameter section 21, and the bottom of the small-diameter section 22 is communicated with one end of the transverse cylinder 23; the diameter of the large-diameter section 21 is larger than that of the small-diameter section 22; this arrangement provides an acceleration effect to facilitate the sealant from the longitudinal canister into the transverse canister 23.

First embodiment of the dispensing valve 30: adopt pneumatic dispensing valve 30, including cylinder, valve body and material jar, cylinder and valve body separate with advanced sealing material, avoid glue to invade the cylinder.

The material cylinder and the air cylinder are connected to the valve main body of the dispensing valve 30, and concentricity of the material cylinder and the air cylinder is guaranteed.

The solenoid valve pneumatic cylinder moves to drive the central rod to move up and down, and the up-and-down movement of the central rod is utilized to achieve the opening and closing effects on the glue; when the glue dispensing device is opened, the sealant enters the glue dispensing needle head 40 under the action of the central rod, and is scribed and dispensed through the glue dispensing needle head 40.

The rubber valve body is subjected to aluminum alloy anodic oxidation treatment, the sealing material is made of the latest tetrafluoro material, and the contact colloid part is made of corrosion-resistant material.

In the second embodiment of the dispensing valve 30, an electric dispensing valve 30 is adopted: the pump comprises a pump body and a driving part, and is simple to mount along with a 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.

The conveying process has no influence on the performance of the medium.

Meanwhile, the medium suck-back function can be easily realized by reversing the motor, the cleanness of the medium and the material is ensured, and no water leakage and no pollution exist.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

The LCOS dispensing constant-temperature control device is characterized by comprising a rubber cylinder filled with sealant, a constant-temperature structure for keeping constant temperature, a fixed seat, a dispensing valve for allowing the sealant to enter and a dispensing needle head, wherein the rubber cylinder is communicated with the fixed seat, the dispensing valve is fixedly arranged with the fixed seat, and the dispensing needle head is fixedly and communicated with the dispensing valve; the thermostatic structure with the fixing base is fixed arrangement, just the thermostatic structure encircles and surrounds the dispensing valve.
2. The LCOS dispensing thermostatic control device of claim 1, wherein said thermostatic structure includes a housing and a heat slug which is electrically heated, said heat slug being disposed inside said housing; the casing with the fixing base is fixed arrangement, the heating plate is to enclose and surrounds the dispensing valve is arranged.
3. The LCOS dispensing thermostatic control device of claim 2, wherein said heater chip has a heating surface facing said dispensing valve and a back surface facing away from said dispensing valve, said back surface of said heater chip being provided with a heat shield; the heat insulation sheet and the heating sheet are fixedly arranged, and the heat insulation sheet and the shell are relatively fixedly arranged.
4. The LCOS dispensing thermostatic control device of claim 3, wherein the heating surface of the heating plate is recessed in a direction away from the dispensing valve to form an alignment groove, and the dispensing valve is engaged with the alignment groove.
5. The LCOS dispensing thermostatic control device according to any one of claims 2-4, wherein the housing has a plurality of ventilation channels and a heat dissipation port communicating with the outside, the inner ends of the ventilation channels are arranged in communication with the fixing base, and the outer ends of the ventilation channels are communicated with the heat dissipation port; the shell is provided with a sealing cover sheet for sealing the heat dissipation opening.
6. The LCOS dispensing thermostat control device of claim 5, wherein said housing is formed with a mounting slot in a surrounding arrangement, said mounting slot having a top opening through which said heater chip is movably inserted into said mounting slot; when constant temperature treatment is carried out, the heating plate is inserted into the installation groove, and the heating plate blocks the inner end of the ventilation channel.
7. The LCOS dispensing thermostatic control device according to any one of claims 2-4, wherein the thermostatic structure comprises a control member and a temperature sensor, the heater chip and the temperature sensor are respectively connected to the control member, and the control member controls the heating temperature of the heater chip; the temperature sensor is abutted against and fixes the heating plate.
8. The LCOS dispensing thermostatic control device according to any one of claims 2-4, wherein the rubber cylinder comprises a cylinder body and a push rod, one end of the push rod is movably embedded in the cylinder body, and the other end of the push rod extends to the outside of the cylinder body; the barrel is provided with an inner wall, the inner wall encloses to form a storage space, sealant is arranged in the storage space, and the outer surface of the push rod abuts against the inner wall.
9. The LCOS dispensing thermostatic control device as claimed in claim 8, wherein said barrel comprises a longitudinal barrel and a transverse barrel, said longitudinal barrel and said fixing seat are arranged in parallel and corresponding to each other, and said transverse barrel and said fixing seat are arranged perpendicularly; one end of the transverse cylinder is communicated with the longitudinal cylinder, and the other end of the transverse cylinder is embedded into the constant temperature structure and is communicated with the dispensing valve.
10. The LCOS dispensing thermostat control device of claim 9, wherein said longitudinal barrel comprises a large diameter section and a small diameter section, a top of said small diameter section being in communication with said large diameter section, and a bottom of said small diameter section being in communication with one end of said transverse barrel; the diameter of the large-diameter section is larger than that of the small-diameter section.