CN212652100U

CN212652100U - High-precision injection dispensing valve

Info

Publication number: CN212652100U
Application number: CN202021235681.7U
Authority: CN
Inventors: 罗杰
Original assignee: Shenzhen Jiete Precision Technology Co ltd
Current assignee: Shenzhen Jiete Precision Technology Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-03-05
Anticipated expiration: 2030-06-29

Abstract

The utility model relates to a dispensing valve technical field discloses a high-accuracy injection dispensing valve, which comprises a cylinder, the cylinder upper cover, a piston, the needle valve, the connecting seat, the material jar, the volume of gluing fine setting screw rod, a fixed sleeve, material jar upper cover, material jar lower cover, syringe needle and sealing plug, the upper end at the connecting seat is fixed to the cylinder, the lower tip at the connecting seat is fixed to the material jar, the piston sets up in the cylinder, the upper end and the piston fixed connection of needle valve, sealing plug inlays and locates the lower tip of material jar, the lower tip of material jar lower cover is equipped with the mouth of spouting the gum that is linked together with first through-hole, the upper end of syringe needle can dismantle fixed connection with spouting the mouth of spouting the gum, the fixed sleeve sets up the top at the cylinder upper cover, the volume of gluing fine setting screw rod is revolved in first threaded hole, the lower tip of volume of. The technical scheme of the utility model the size of the volume of glue of regulation that can be accurate for glue scribble the line more even, improved rubber coated precision, easy and simple to handle, the practicality is strong.

Description

High-precision injection dispensing valve

Technical Field

The utility model relates to a dispensing valve technical field, in particular to high-accuracy injection dispensing valve.

Background

With the development of science and technology, many consumer electronics are increasingly developed to be smaller, faster, and more in the communication electronic field such as entertainment, which brings new challenges to manufacturers of these products, and especially in large-scale mass production, high-precision and high-speed production equipment is very important. The fluid dispensing technique is a key technique in microelectronic packaging, and can be constructed to form dots, lines, surfaces (coating) and various patterns, which are widely applied to chip fixing, package reversing and chip coating. The glue dispensing valve has two types of pneumatic and electric. Pneumatic: the dispensing valve is formed by connecting an air cylinder, a valve body and a glue outlet body up and down, the air cylinder and the valve body are separated by a membrane, the glue is prevented from invading an air cavity, a valve in the glue outlet body is fixed on a piston rod, and the opening and closing of the glue are achieved by using the switch of the valve.

However, the existing dispensing valve has the problems of weak bonding caused by too little glue and waste caused by too much glue, and further improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high accuracy injection dispensing valve, the glue that aims at solving current dispensing valve existence leads to bonding insecure and glue too much to cause extravagant technical problem too seldom.

In order to achieve the above object, the utility model provides a high-precision injection dispensing valve, including cylinder, cylinder upper cover, piston, needle valve, connecting seat, material jar, volume of glue fine setting screw rod, fixed sleeve, material jar upper cover, material jar lower cover, syringe needle and sealed plug, cylinder upper cover detachable lid is established the upper end of cylinder, cylinder detachable fixes the upper end of connecting seat, material jar detachable fixes the lower tip of connecting seat, the setting that the piston can move from top to bottom is in the cylinder, the upper end of needle valve with piston fixed connection, material jar upper cover and material jar lower cover revolve respectively in the upper end and the lower tip of material jar, sealed plug inlays to locate the lower tip of material jar, the middle concave first through-hole that runs through that is equipped with of sealed plug, the lower tip of needle valve is the setting of coniform structure, just the lower tip of needle valve can be about the activity inlay locate set up in the first through-hole, just the periphery wall of the lower tip of needle valve all with the internal perisporium butt setting of first through-hole, the lateral wall of material jar be equipped with one with the gluey hole of advancing that first through-hole is linked together, the lower tip of material jar lower cover be equipped with one with the mouth is glued in spouting that first through-hole is linked together, the upper end of syringe needle with spout gluey mouthful can dismantle fixed connection, the fixed sleeve sets up the top of cylinder upper cover, the centre of fixed sleeve is equipped with the first screw hole that runs through, glue volume fine setting screw revolve in first threaded hole sets up, just the lower tip of gluing volume fine setting screw can with the upper end butt of piston.

Furthermore, the cylinder upper cover further comprises a rotation stopping screw, a second through hole is concavely formed in the middle of the cylinder upper cover, the fixing sleeve is detachably inserted into the second through hole and is arranged in the second through hole, the rotation stopping screw is screwed on the outer side wall of the cylinder upper cover, and the front end part of the rotation stopping screw can extend into the second through hole and is abutted to the outer peripheral wall of the fixing sleeve.

Further, still include rotatory sleeve, rotatory sleeve is fixed the upper end of gluing volume fine setting screw rod, the rotatable embedding of fixed sleeve's upper end is located rotatory telescopic lower tip, rotatory sleeve can be followed fixed sleeve's periphery wall slides from top to bottom and sets up, just the periphery wall of rotatory telescopic lower tip is along the even a plurality of scales that are equipped with of circumferencial direction.

Further, the air cylinder further comprises a continuous air inlet joint and a control air inlet joint, wherein the continuous air inlet joint and the control air inlet joint are respectively screwed on the outer side wall of the air cylinder.

Furthermore, the outer side wall of the material cylinder is provided with a plurality of through mounting holes.

Further, still include the sealing washer, the lower tip of cylinder upper cover is concave to be equipped with a recess that extends along the circumferencial direction, the sealing washer inlays to be located set up in the recess, just the periphery wall of sealing washer all with the internal perisporium butt of cylinder.

Further, the periphery wall of glue spraying opening is equipped with the second screw hole, the upper end of syringe needle is equipped with the external screw thread, the upper end detachable of syringe needle revolve in the threaded setting of second, just the periphery wall of the upper end of syringe needle is protruding to be equipped with a plurality of anti-skidding sand grips.

Further, still include first screw, first screw respectively in proper order revolve on cylinder upper cover, cylinder and connecting seat, cylinder upper cover, cylinder and connecting seat pass through fixed connection can be dismantled to first screw.

Further, the material cylinder device further comprises a second screw, the second screw is respectively screwed on the connecting seat and the material cylinder in sequence, and the connecting seat and the material cylinder are detachably and fixedly connected through the second screw.

Further, still include reset spring, the mobilizable cover of reset spring is established the upper end of needle valve, just reset spring's both ends respectively with the lower tip butt of piston and material jar.

Adopt the technical scheme of the utility model, following beneficial effect has: according to the technical scheme of the utility model, glue is filled into the pressure barrel, compressed air enters the pressure barrel, and the glue is pressed into the feeding pipe connected with the material cylinder; a signal is given to the electromagnetic valve, so that a piston of the dispensing valve is driven to move downwards to drive the needle valve to move up and down, the up-and-down movement of the needle valve is utilized to open and close a glue outlet of a lower sealing ring of the material cylinder, so that the glue is opened and closed, and the glue is extruded out of the needle head through a material cylinder body; through rotating rotatory sleeve, the drive is glued volume fine setting screw rod up-and-down motion, the height that lifts up of accurate control needle valve to the size of accurate regulation play glue volume effectively guarantees to have sufficient glue bonding subassembly, avoids the waste that glue too much caused again, makes the line of scribbling of glue more even, has improved the gummed precision, and reaction rate is fast, and the installation is convenient, easy operation, convenient to use, the practicality is strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a high-precision injection dispensing valve according to an embodiment of the present invention;

fig. 2 is a schematic view of an overall structure of another view angle of a high-precision injection dispensing valve according to an embodiment of the present invention;

fig. 3 is an exploded schematic view of a high-precision injection dispensing valve according to an embodiment of the present invention;

fig. 4 is another exploded schematic view of a high-precision injection dispensing valve according to an embodiment of the present invention.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a high accuracy injection dispensing valve.

As shown in fig. 1 to 4, in an embodiment of the present invention, the high-precision injection dispensing valve includes a cylinder 101, a cylinder upper cover 102, a piston 103, a needle valve 104, a connecting seat 105, a material cylinder 106, a glue amount fine-tuning screw 107, a fixing sleeve 108, a material cylinder upper cover 109, a material cylinder lower cover 110, a needle 111, and a rubber sealing plug 112, wherein the cylinder upper cover 102 is detachably covered on the upper end of the cylinder 101, the cylinder 101 is detachably fixed on the upper end of the connecting seat 105, the material cylinder 106 is detachably fixed on the lower end of the connecting seat 105, the piston 103 is movably disposed in the cylinder 101, the upper end of the needle valve 104 is fixedly connected to the piston 103, the material cylinder upper cover 109 and the material cylinder lower cover 110 are respectively screwed on the upper end and the lower end of the material cylinder 106, the rubber sealing plug 112 is embedded on the lower end of the material cylinder 106, a first through hole 1121 is concavely arranged in the middle of the sealing rubber plug 112, the lower end of the needle valve 104 is arranged in a cone-shaped structure, and the lower end of the needle valve 104 is movably embedded in the first through hole 1121, and the outer peripheral wall of the lower end of the needle valve 104 can be abutted with the inner peripheral wall of the first through hole 1121, the outer side wall of the material cylinder 106 is provided with a glue inlet 1061 communicated with the first through hole 1121, the lower end of the lower cover 110 of the material cylinder is provided with a glue spraying port 1101 communicated with the first through hole 1121, the upper end of the needle 111 is detachably and fixedly connected with the glue spraying port 1101, the fixing sleeve 108 is arranged on the top of the cylinder upper cover 102, a first threaded hole 1081 is formed in the middle of the fixing sleeve 108, the glue amount fine adjustment screw 107 is screwed into the first threaded hole 1081, and the lower end of the glue amount fine adjustment screw 107 can abut against the upper end of the piston 103.

Specifically, the cylinder cover 102 further includes a rotation stopping screw 113, a second through hole 1021 is concavely provided in the middle of the cylinder cover 102, the fixing sleeve 108 is detachably inserted into the second through hole 1021, the rotation stopping screw 113 is screwed on the outer side wall of the cylinder cover 102, and the front end of the rotation stopping screw 113 can extend into the second through hole 1021 and is abutted against the outer peripheral wall of the fixing sleeve 108.

Specifically, still include rotatory sleeve 114, rotatory sleeve 114 is fixed the upper end of gluing volume fine setting screw 107, the rotatable embedding of upper end of fixed sleeve 108 is located the lower tip of rotatory sleeve 114, rotatory sleeve 114 can follow the setting of sliding from top to bottom of fixed sleeve's periphery wall 108, just the periphery wall of the lower tip of rotatory sleeve 114 is along the even a plurality of scales (not shown) that are equipped with of circumferencial direction.

Specifically, the air cylinder further comprises a continuous air inlet joint 115 and a control air inlet joint 116, wherein the continuous air inlet joint 115 and the control air inlet joint 116 are respectively screwed on the outer side wall of the air cylinder 101.

Specifically, the outer side wall of the material cylinder 106 is provided with a plurality of through mounting holes 1062.

Specifically, the cylinder cover further comprises a seal ring 117, a groove 1022 extending along the circumferential direction is concavely arranged at the lower end part of the cylinder upper cover 102, the seal ring 117 is embedded in the groove 1022, and the outer peripheral wall of the seal ring 117 is abutted to the inner peripheral wall of the cylinder 101.

Specifically, the peripheral wall of glue spraying port 1101 is equipped with second screw hole 1102, the upper end of syringe needle 111 is equipped with external screw thread 1111, the upper end of syringe needle 111 detachable revolve in set up in second screw hole 1102, just the periphery wall of the upper end of syringe needle 111 is protruding to be equipped with a plurality of anti-skidding sand grips 1112.

Specifically, the air cylinder further comprises a first screw 118, the first screw 118 is sequentially screwed on the air cylinder upper cover 102, the air cylinder 101 and the connecting seat 105, and the air cylinder upper cover 102, the air cylinder 101 and the connecting seat 105 are detachably and fixedly connected through the first screw 115.

Specifically, the material charging device further comprises a second screw 119, the second screw is respectively screwed on the connecting seat 105 and the material cylinder 106 in sequence, and the connecting seat 105 and the material cylinder 106 are detachably and fixedly connected through the second screw 119.

Specifically, still include reset spring 120, the mobilizable cover of reset spring 120 is established the upper end of needle valve 104, just reset spring 120's both ends respectively with the lower tip butt of piston 103 and material jar 101.

Specifically, the utility model fills the glue into the pressure barrel, the compressed air enters the pressure barrel, and the glue is pressed into the feeding pipe connected with the material cylinder; a signal is given to the electromagnetic valve, so that a piston of the dispensing valve is driven to move downwards to drive the needle valve to move up and down, the up-and-down movement of the needle valve is utilized to open and close a glue outlet of a lower sealing ring of the material cylinder, so that the glue is opened and closed, and the glue is extruded out of the needle head through a material cylinder body; through rotating rotatory sleeve, the drive is glued volume fine setting screw rod up-and-down motion, the height that lifts up of accurate control needle valve to the size of accurate regulation play glue volume effectively guarantees to have sufficient glue bonding subassembly, avoids the waste that glue too much caused again, makes the line of scribbling of glue more even, has improved the gummed precision, and reaction rate is fast, and the installation is convenient, easy operation, convenient to use, the practicality is strong.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A high-precision injection dispensing valve is characterized by comprising a cylinder, a cylinder upper cover, a piston, a needle valve, a connecting seat, a material cylinder, a glue amount fine adjustment screw rod, a fixing sleeve, a material cylinder upper cover, a material cylinder lower cover, a needle head and a sealing rubber plug, wherein the upper end part of the cylinder is covered by the detachable cover of the cylinder, the upper end part of the connecting seat is fixed by the detachable cover of the cylinder, the material cylinder is detachably fixed at the lower end part of the connecting seat, the piston can be arranged in the cylinder in a vertically movable manner, the upper end part of the needle valve is fixedly connected with the piston, the material cylinder upper cover and the material cylinder lower cover are respectively screwed at the upper end part and the lower end part of the material cylinder, the sealing rubber plug is embedded at the lower end part of the material cylinder, a first through hole which penetrates is concavely arranged in the middle of the sealing rubber plug, the lower end part of the needle valve is arranged in a conical structure, and the lower end part of the, just the periphery wall of the lower tip of needle valve all can with the internal perisporium butt setting of first through-hole, the lateral wall of material jar be equipped with one with what first through-hole was linked together advances gluey hole, the lower tip of material jar lower cover be equipped with one with what first through-hole was linked together spouts gluey mouth, the upper end of syringe needle with spout gluey mouthful can dismantle fixed connection, the fixing sleeve sets up the top of cylinder upper cover, the centre of fixing sleeve is equipped with the first screw hole that runs through, glue volume fine setting screw rod revolve in first threaded hole sets up, just glue volume fine setting screw rod's lower tip can with the upper end butt of piston.

2. The high-precision injection dispensing valve according to claim 1, further comprising a rotation stopping screw, wherein a second through hole is concavely formed in the middle of the cylinder upper cover, the fixing sleeve is detachably inserted into the second through hole, the rotation stopping screw is screwed on the outer side wall of the material cylinder upper cover, and the front end part of the rotation stopping screw can extend into the second through hole and is abutted against the outer peripheral wall of the fixing sleeve.

3. The high-precision injection dispensing valve according to claim 1, further comprising a rotating sleeve, wherein the rotating sleeve is fixed at the upper end of the glue amount fine adjustment screw, the upper end of the fixing sleeve is rotatably embedded at the lower end of the rotating sleeve, the rotating sleeve can be arranged along the peripheral wall of the fixing sleeve in a vertically sliding manner, and the peripheral wall of the lower end of the rotating sleeve is uniformly provided with a plurality of scales along the circumferential direction.

4. The high precision injection dispensing valve of claim 1 further comprising a continuous inlet fitting and a control inlet fitting, said continuous inlet fitting and control inlet fitting being threaded on the outside wall of said cylinder, respectively.

5. The high-precision injection dispensing valve of claim 1, wherein the outer side wall of the material cylinder is provided with a plurality of mounting holes therethrough.

6. The high-precision injection dispensing valve according to claim 1, further comprising a sealing ring, wherein a groove extending in the circumferential direction is concavely formed at the lower end of the cylinder upper cover, the sealing ring is embedded in the groove, and the outer peripheral wall of the sealing ring is abutted against the inner peripheral wall of the cylinder.

7. The high-precision injection dispensing valve according to claim 1, wherein a second threaded hole is formed in the peripheral wall of the injection port, an external thread is formed in the upper end portion of the needle head, the upper end portion of the needle head is detachably screwed in the second threaded hole, and a plurality of anti-skid convex strips are convexly formed in the peripheral wall of the upper end portion of the needle head.

8. The high-precision injection dispensing valve according to claim 1, further comprising first screws, wherein the first screws are sequentially screwed on the cylinder upper cover, the cylinder and the connecting seat respectively, and the cylinder upper cover, the cylinder and the connecting seat are detachably and fixedly connected through the first screws.

9. The high-precision injection dispensing valve according to claim 1, further comprising second screws, wherein the second screws are respectively screwed on the connecting seat and the material cylinder in sequence, and the connecting seat and the material cylinder are detachably and fixedly connected through the second screws.

10. The high-precision injection dispensing valve according to claim 1, further comprising a return spring, wherein the return spring is movably sleeved on the upper end of the needle valve, and two ends of the return spring are respectively abutted against the lower end of the piston and the lower end of the material cylinder.