CN216573883U - Adhesive dispensing device and adhesive dispensing machine - Google Patents
Adhesive dispensing device and adhesive dispensing machine Download PDFInfo
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- CN216573883U CN216573883U CN202122776765.2U CN202122776765U CN216573883U CN 216573883 U CN216573883 U CN 216573883U CN 202122776765 U CN202122776765 U CN 202122776765U CN 216573883 U CN216573883 U CN 216573883U
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Abstract
The utility model provides a glue dispensing device and a glue dispenser, which relate to the technical field of glue dispensing equipment and comprise: injecting glue mouth, casing, slip seal structure, ejector pin, drive assembly. Wherein, the glue injection nozzle is provided with a glue dispensing opening used for injecting glue outwards. The shell is arranged above the glue injection nozzle, and a glue cavity capable of containing glue, a glue inlet channel communicated with the glue cavity and used for injecting glue into the glue cavity, and a glue outlet channel communicated with the glue cavity and used for discharging glue to the glue injection nozzle are arranged in the shell; a glue inlet is formed at the joint of the glue cavity and the glue inlet channel; a glue outlet is formed at the joint of the glue cavity and the glue outlet channel; the glue inlet is arranged at the bottom of the glue cavity; the height of the glue outlet is higher than that of the glue inlet. The glue inlet is arranged at the bottom in the glue cavity, and the glue outlet is higher than the glue inlet, so that the glue entering the glue cavity is discharged firstly, and the situation of glue overstock solidification at the bottom of the glue cavity is avoided.
Description
Technical Field
The application relates to the technical field of glue dispensing equipment, in particular to a glue dispensing device and a glue dispenser.
Background
The glue dispenser is mainly used for accurately dispensing, injecting, coating and dripping glue, paint and other liquids in a product process to each accurate position of a product, and can be used for realizing dispensing, line drawing, circular or arc. The dispensing valve is one of important parts of the dispensing machine and is used for controlling the output of fluid, and the working performance of the dispensing valve directly influences the dispensing accuracy of the dispensing machine.
In some current technical schemes, be provided with gluey chamber in the casing of valve is glued to the point, be provided with on the piston rod with glue chamber complex piston, along with the reciprocating motion of piston rod, the piston can extrude the colloid in gluing the chamber and realize out gluing. For example, in the AB glue dispensing device disclosed in chinese patent 201711222151.1, a piston on a piston rod is in sealing engagement with a glue chamber, wherein the glue chamber is disposed in a dosing cylinder. The glue dispensing device has the following defects: first, glue chamber and piston cooperation, it is higher to the machining precision requirement in gluing the chamber. And secondly, the glue outlet and the glue inlet of the glue cavity are arranged at the bottom of the glue cavity, so that the situations of unclean glue discharge and overstocked curing are easy to occur. And thirdly, the glue outlet and the glue inlet of the glue cavity are arranged at the bottom of the glue cavity, and a larger height space is required to be occupied.
SUMMERY OF THE UTILITY MODEL
The technical problem that this application will solve lies in, to prior art's the aforesaid not enough, provides a dispensing device and point gum machine.
This adhesive deposite device includes:
the glue injection nozzle is provided with a glue dispensing opening used for injecting glue outwards;
the glue injection device comprises a shell arranged above a glue injection nozzle, wherein a glue cavity capable of containing glue, a glue inlet channel communicated with the glue cavity and used for injecting glue into the glue cavity, and a glue outlet channel communicated with the glue cavity and used for discharging glue to the glue injection nozzle are formed in the shell; a glue inlet is formed at the joint of the glue cavity and the glue inlet channel; a glue outlet is formed at the joint of the glue cavity and the glue outlet channel; the glue inlet is arranged at the bottom of the glue cavity; the height of the glue outlet is higher than that of the glue inlet;
the lower end of the ejector rod penetrates through the rubber cavity;
the sliding sealing structure is fixedly arranged at the top of the rubber cavity, and a sealed sliding fit is formed between the sliding sealing structure and the ejector rod;
and the driving assembly can drive the ejector rod to move up and down so as to press the colloid in the colloid cavity into the colloid outlet channel from the colloid outlet.
In some embodiments, the glue outlet is disposed at the top of the glue cavity.
In some embodiments, the drive assembly is an electric or pneumatic device.
In some embodiments, further comprising: the glue inlet valve is used for controlling the on-off of the glue inlet channel and the glue outlet valve is used for controlling the on-off of the glue outlet channel.
In some embodiments, the glue inlet valve and the glue outlet valve are integrated in the same valve body.
In some embodiments, the glue inlet valve and the glue outlet valve are both pneumatic valves.
In some embodiments, the housing is a split structure.
On the other hand, the application also provides a glue dispenser, which comprises the glue dispensing device provided by the above part.
The technical scheme of the application has the following technical effects: first, slide seal structure is fixed motionless, and the ejector pin moves from top to bottom and realizes going out gluey, and is lower to the inner wall processing requirement in gluey chamber, has reduced the processing degree of difficulty. The glue inlet is arranged at the bottom in the glue cavity, and the glue outlet is higher than the glue inlet, so that the glue entering the glue cavity is discharged first, and the situation of glue overstock solidification at the bottom of the glue cavity is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a dispensing apparatus in an embodiment of the present application.
Fig. 2 is another schematic structural diagram of a dispensing apparatus according to an embodiment of the present application.
FIG. 3 is a schematic structural diagram of a glue outlet valve in an embodiment of the present application.
Detailed Description
The following are specific embodiments of the present application and are further described with reference to the drawings, but the present application is not limited to these embodiments. In the following description, specific details such as specific configurations and components are provided only to help the embodiments of the present application be fully understood. Accordingly, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
In addition, the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Referring to fig. 1 and fig. 2, an embodiment of the present application provides a dispensing apparatus, including: the glue injection nozzle 10, the shell 20, the sliding sealing structure 30, the ejector rod 40 and the driving assembly 50. Wherein, a glue dispensing opening 11 for injecting glue is arranged on the glue injection nozzle 10. The shell 20 is arranged above the glue injection nozzle 10, and a glue cavity 21 capable of containing glue, a glue inlet channel 22 communicated with the glue cavity 21 and used for injecting glue into the glue cavity 21, and a glue outlet channel 23 communicated with the glue cavity 21 and used for discharging glue to the glue injection nozzle 10 are arranged in the shell; a glue inlet 22p is formed at the joint of the glue cavity 21 and the glue inlet channel 22; a glue outlet 23p is formed at the joint of the glue cavity 21 and the glue outlet channel 23; the glue inlet 22p is arranged at the bottom of the glue cavity 21; the height of the glue outlet 23p is higher than that of the glue inlet 22 p. The lower end of the push rod 40 penetrates through the rubber cavity 21. The sliding sealing structure 30 is fixedly arranged at the top of the glue cavity 21, and a sealing sliding fit is formed between the sliding sealing structure 30 and the ejector rod 40. The driving assembly 50 can drive the push rod 40 to move up and down so as to press the glue in the glue cavity 21 into the glue outlet channel 23 from the glue outlet 23 p.
The adhesive deposite device that this application provided is the dispensing valve, and the colloid is at first injected into gluey chamber 21 through advancing gluey passageway 22, and the colloid enters into gluey chamber 21 from advancing gluey mouth 22p of advancing gluey passageway 22. Under the action of the push rod 40, the glue in the glue cavity 21 enters the glue outlet channel 23 from the glue outlet 23 p.
The sliding seal structure 30 is fixedly arranged on the top of the glue cavity 21. The lower end of the push rod 40 penetrates through the rubber cavity 21. A sealed sliding fit is formed between the sliding seal arrangement 30 and the ram 40. Here, the sliding seal structure 30 is fixed, and the ejector pin 40 moves from top to bottom to realize gluing, so, the surface of ejector pin 40 is the sliding fit surface, needs higher machining precision, and the sliding fit surface here is the surface, has reduced the processing degree of difficulty effectively. The sliding seal structure 30 is coated on the periphery of the ejector rod 40 and forms sliding fit with the ejector rod 40, so that the ejector rod 40 keeps a sealing relationship in the up-and-down movement process. The seal between the sliding seal arrangement 30 and ram 40 is a dynamic seal, and it should be understood that dynamic seals exist in the prior art in a variety of forms, such as form-packed seals, stuffing box seals, and expanding ring seals. The dynamic seal is not described in detail here, and reference is made to the prior art.
When the push rod 40 moves downwards to encroach on the glue cavity 21, the space for accommodating the glue in the glue cavity 21 is reduced, and the glue is pressed into the glue outlet channel 23. When the push rod 40 moves upwards, the space for accommodating the colloid in the colloid cavity 21 is increased, and the colloid enters the colloid cavity 21. It should be understood that the up-down orientation referred to herein is based on the orientation in which the drawings are laid out. A clearance space is formed between the outer wall of the ejector rod 40 and the inner wall of the glue cavity 21, and when the ejector rod 40 moves downwards, glue in the glue cavity 21 can flow upwards along the clearance space between the ejector rod 40 and the glue cavity 21.
Ram 40 is driven by drive assembly 50. The driving assembly 50 is used for generating a linear reciprocating motion in a vertical direction to drive the push rod 40 to move up and down. In some embodiments, the driving assembly 50 is an electric device or a pneumatic device, and a ball screw device driven by a servo motor can be used.
In the embodiment of the present application, the glue inlet 22p is disposed at the bottom of the glue cavity 21, and the height of the glue outlet 23p is higher than that of the glue inlet 22 p. So can make the colloid that enters into earlier in the gluey chamber 21 discharge earlier gluey chamber 21, avoid gluing the condition that the colloid backlog solidification appears in chamber 21 bottom. When the glue cavity 21 is filled with glue, the glue body continuously enters the glue cavity 21 from the glue inlet 22p at the bottom, so that the glue body is not accumulated and solidified at the bottom of the glue cavity 21. In particular, the glue outlet 23p may be arranged at the upper half height of the glue cavity 21, and in some embodiments, referring to fig. 2, the glue outlet 23p is arranged at the top of the glue cavity 21.
Referring to fig. 3, the dispensing device further includes a glue inlet valve 60 for controlling the on-off of the glue inlet channel 22, and a glue outlet valve 70 for controlling the on-off of the glue outlet channel 23. The glue inlet valve 60 is used for closing the glue inlet channel 22 after glue inlet is completed. The glue outlet valve 70 is used for closing the glue outlet channel 23 after glue outlet is finished. In some embodiments, the glue inlet valve 60 and the glue outlet valve 70 are integrated in the same valve body. In some embodiments, the glue inlet valve 60 and the glue outlet valve 70 are both pneumatic valves.
In the embodiment of the present application, the housing 20 has a split structure, wherein the glue cavity 21, the glue inlet channel 22, and the glue outlet channel 23 may be formed by a plurality of portions, and each portion is located on a different split body.
Further, the glue outlet channel (23) comprises: a first glue outlet sub-channel (23a) and a second glue outlet sub-channel (23 b); the first glue outlet sub-channel (23a) is connected with the glue cavity (21) and the glue outlet valve (70); the second glue outlet sub-channel (23b) is connected with the glue outlet valve (70) and the glue injection nozzle (10); the glue outlet valve (70) comprises a valve body (71) fixed on the shell (20), a valve core (72) matched with the valve body (71), and an elastic component (76); an air sealing sheet (73) is arranged between the valve body (71) and the shell (20); the valve body (71) is provided with a front limiting part (74) for limiting the front limiting position of the valve core (72) and a rear limiting part (75) for limiting the rear limiting position of the valve core (72); the valve core (72) can extend to the front limit position pneumatically to extrude the air sealing sheet (73) to enable the first glue outlet sub-channel (23a) and the second glue outlet sub-channel (23b) to be separated, and can retreat to the rear limit position under the action of the elastic component (76) to enable the first glue outlet sub-channel (23a) and the second glue outlet sub-channel (23b) to be communicated.
The spool 72 of the glue valve 70 is restricted by the shape and structure of the front stopper 74 and the rear stopper 75 in the valve body 71, and moves between the front limit position and the rear limit position. When the glue discharging channel 23 discharges glue, the compressed air is removed, and the valve core 72 retreats to the rear limit position under the action of the elastic component 76, so that the first glue discharging sub-channel 23a is communicated with the second glue discharging sub-channel 23 b. When the glue discharging is completed, compressed air is injected into the glue discharging valve 70, the valve core 72 extends forwards to the front limit position to extrude the air sealing sheet 73 to partition the first glue discharging sub-channel 23a and the second glue discharging sub-channel 23b, and at the moment, the glue discharging valve 70 is in a closed state. It should be understood that the air sealing plate 73 has a certain thickness, and in the prior art, the thickness of the air sealing plate 73 is affected by the extrusion force of the valve core, so that the pressure of the glue in the glue outlet channel acting on the valve core affects the position of the valve core. In the embodiment of the present application, the valve body 71 is provided with the front limit portion 74 to ensure that the valve core 72 moves forward to the front limit position under the driving of the compressed air each time, and the limit position is not affected by the pressure fluctuation of the colloid, so as to ensure that the thickness space reserved for the air sealing piece 73 is a constant value.
It will be appreciated that the forward movement of the spool 72 will encroach on a certain passage space, causing a change in the volume of glue that can be accommodated in the glue outlet passage 23. In the embodiment of the application, when the glue outlet valve 70 is closed, the valve core 72 extends from the front of the rear limit position to the front limit position, the stroke distance of the valve core 72 is a fixed value, and the occupied channel space of each closing action is the same, so that the glue outlet amount of each glue outlet is basically kept unchanged without being influenced by glue pressure, and the glue outlet precision is effectively improved.
In addition, for the pneumatic glue discharging valve 70, the front limit part 74 can reduce the acting force of the valve core 72 on the air sealing sheet 73, so that the service life of the air sealing sheet 73 is prolonged. Similarly, the rear limiting portion 75 can prevent the valve core 72 from extruding the air sealing sheet 77 on the rear side of the valve core 72, and can prolong the service life of the rear air sealing sheet 77.
Specifically, in some embodiments, the housing 20 forms a ring of sealing surface 24 around the inlet of the second glue sub-channel 23 b; a circle of grooves 25 are formed on the outer periphery of the sealing surface 24; the outlet of the first glue outlet sub-channel 23a is arranged in the groove 25; when the valve core 72 extends to the front limit position, the valve core cooperates with the sealing surface 24 to extrude the air sealing sheet 73 to seal the inlet of the second glue outlet sub-channel 23b, so that the first glue outlet sub-channel 23a and the second glue outlet sub-channel 23b are separated.
The embodiment of the application also provides a glue dispenser, which comprises the glue dispensing device provided by the above part. In addition, the dispenser also comprises other parts, such as a feeding device, a feeding device and the like. For the dispensing device, reference may be made to the contents of the previous portion of the embodiments of the present application, which are not described herein again.
In the above embodiments of the present application, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
In the description of the present application, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The specific embodiments described herein are merely illustrative of the spirit of the application. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the present application as defined by the appended claims.
Claims (9)
1. An adhesive dispensing device, comprising:
the glue injection nozzle (10) is provided with a glue dispensing opening (11) used for injecting glue outwards;
the glue injection device comprises a shell (20) arranged above the glue injection nozzle (10), wherein a glue cavity (21) capable of containing glue, a glue inlet channel (22) communicated with the glue cavity (21) and used for injecting glue into the glue cavity (21), and a glue outlet channel (23) communicated with the glue cavity (21) and used for discharging glue to the glue injection nozzle (10) are formed in the shell; a glue inlet (22p) is formed at the joint of the glue cavity (21) and the glue inlet channel (22); a glue outlet (23p) is formed at the joint of the glue cavity (21) and the glue outlet channel (23); the glue inlet (22p) is arranged at the bottom of the glue cavity (21); the height of the glue outlet (23p) is higher than that of the glue inlet (22 p);
the lower end of the ejector rod (40) penetrates through the rubber cavity (21);
the sliding sealing structure (30) is fixedly arranged at the top of the glue cavity (21), and a sealed sliding fit is formed between the sliding sealing structure (30) and the ejector rod (40);
the driving assembly (50) can drive the ejector rod (40) to move up and down so as to press the colloid in the colloid cavity (21) into the colloid outlet channel (23) from the colloid outlet (23 p).
2. Dispensing device according to claim 1, characterized in that the glue outlet (23p) is arranged at the top of the glue chamber (21).
3. Dispensing device according to claim 1, characterized in that said driving assembly (50) is an electric or pneumatic device.
4. The dispensing apparatus of claim 1, further comprising: a glue inlet valve (60) for controlling the on-off of the glue inlet channel (22) and a glue outlet valve (70) for controlling the on-off of the glue outlet channel (23).
5. Dispensing device according to claim 4, characterized in that the glue inlet valve (60) and the glue outlet valve (70) are integrated in the same valve body.
6. Dispensing device according to claim 4, characterized in that the glue inlet valve (60) and the glue outlet valve (70) are pneumatic valves.
7. Dispensing device according to claim 1, characterized in that said housing (20) is of a split construction.
8. Dispensing device according to claim 6, characterized in that said dispensing channel (23) comprises: a first glue outlet sub-channel (23a) and a second glue outlet sub-channel (23 b); the first glue outlet sub-channel (23a) is connected with the glue cavity (21) and the glue outlet valve (70); the second glue outlet sub-channel (23b) is connected with the glue outlet valve (70) and the glue injection nozzle (10);
the glue outlet valve (70) comprises a valve body (71) fixed on the shell (20), a valve core (72) matched with the valve body (71) and an elastic component (76); an air sealing sheet (73) is arranged between the valve body (71) and the shell (20); the valve body (71) is provided with a front limiting part (74) for limiting the front limiting position of the valve core (72) and a rear limiting part (75) for limiting the rear limiting position of the valve core (72); the valve core (72) can extend to the front limit position pneumatically to extrude the air sealing sheet (73) to enable the first glue outlet sub-channel (23a) and the second glue outlet sub-channel (23b) to be separated, and can retreat to the rear limit position under the action of the elastic component (76) to enable the first glue outlet sub-channel (23a) and the second glue outlet sub-channel (23b) to be communicated.
9. A dispenser, characterized in that it comprises a dispensing device according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122776765.2U CN216573883U (en) | 2021-11-12 | 2021-11-12 | Adhesive dispensing device and adhesive dispensing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122776765.2U CN216573883U (en) | 2021-11-12 | 2021-11-12 | Adhesive dispensing device and adhesive dispensing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216573883U true CN216573883U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122776765.2U Active CN216573883U (en) | 2021-11-12 | 2021-11-12 | Adhesive dispensing device and adhesive dispensing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216573883U (en) |
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2021
- 2021-11-12 CN CN202122776765.2U patent/CN216573883U/en active Active
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