CN210675781U - Positive pressure gluing mechanism - Google Patents
Positive pressure gluing mechanism Download PDFInfo
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- CN210675781U CN210675781U CN201921355721.9U CN201921355721U CN210675781U CN 210675781 U CN210675781 U CN 210675781U CN 201921355721 U CN201921355721 U CN 201921355721U CN 210675781 U CN210675781 U CN 210675781U
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- electromagnetic valve
- positive pressure
- shell
- glue
- loop
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Abstract
The utility model discloses a positive pressure gluing mechanism, which comprises a gluing device, a pneumatic mechanism used for driving the gluing device and a control circuit used for controlling the pneumatic mechanism; the gluing device comprises a shell, the bottom end of the shell is connected with a cylindrical glue injection head, the bottom of the glue injection head is in a round table shape with a small lower part and a large upper part, and the bottom end of the glue injection head is provided with a glue injection port; the glue injection port is smaller than the section of the hole to be coated with glue; a piston block which is connected with the inner wall of the shell in a sliding and sealing manner is arranged in the shell, and a glue solution cavity for containing glue solution is formed by the piston block and the inner wall of the shell below the piston block; the top of the shell is connected with an upper cover, and the upper cover, the piston block and the inner wall of the shell between the upper cover and the piston block form an air cavity; the upper cover is provided with a vent hole communicated with the air cavity, and the vent hole is connected with the pneumatic mechanism. Use the utility model discloses, only need press the start button, just can realize regularly spraying glue solution automatically, inhale back, the resorption glue solution with the glue solution of injecting glue mouth department immediately at the spraying glue solution and reach operation processes such as automatic disconnection circuit after predetermined time.
Description
Technical Field
The utility model belongs to the technical field of the rubber coating technique and specifically relates to the rubber coating technique of screw hole or unthreaded hole.
Background
The traditional gluing mode is to pour out glue solution and then glue by a brush, and the uniformity of gluing is ensured by depending on the experience of an operator. The gluing mode has the defects that the gluing time and the gluing pressure cannot be ensured stably, so that the gluing uniformity cannot be ensured. The glue dripping phenomenon can occur in the gluing process, the cleanliness of the product is affected, the glue solution cleaning process needs to be added, and glue solution cleaning personnel are configured.
The glue solution poured out at the same time can not be used for only 3 days due to the uniformity of gluing, so that the waste is serious, the phenomenon of hair falling exists in the process of gluing the brush, the cleanliness of the product is influenced, and the quality accident is caused due to the blockage of an engine oil nozzle when the glued product is used for an oil circuit of a motor vehicle.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a malleation rubber coating mechanism guarantees the rubber coated homogeneity, improves the cleanliness of product behind the rubber coating to need not dispose the glue solution clearance personnel.
In order to achieve the purpose, the positive pressure gluing mechanism of the utility model comprises a gluing device, a pneumatic mechanism for driving the gluing device and a control circuit for controlling the pneumatic mechanism;
the gluing device comprises a shell, the bottom end of the shell is connected with a cylindrical glue injection head, the bottom of the glue injection head is in a round table shape with a small lower part and a large upper part, and the bottom end of the glue injection head is provided with a glue injection port; the glue injection port is smaller than the section of the hole to be coated with glue;
a piston block which is connected with the inner wall of the shell in a sliding and sealing manner is arranged in the shell, and a glue solution cavity for containing glue solution is formed by the piston block and the inner wall of the shell below the piston block; the top of the shell is connected with an upper cover, and the upper cover, the piston block and the inner wall of the shell between the upper cover and the piston block form an air cavity; the upper cover is provided with a vent hole communicated with the air cavity, and the vent hole is connected with the pneumatic mechanism.
The pneumatic mechanism comprises a main ventilation pipe connected with the ventilation holes, the main ventilation pipe is connected with a positive pressure pipeline and a negative pressure pipeline, the positive pressure pipeline is connected with a positive pressure air source, and a positive pressure electromagnetic valve is connected in series on the positive pressure pipeline; the negative pressure pipeline is connected with a negative pressure air source and is connected with a negative pressure electromagnetic valve in series.
The control circuit comprises a power supply, a switch loop, a first loop and a second loop;
the first loop comprises a first sub-loop and a normally closed contact of the stop time relay, which are connected in series and are switched off in a time-delay manner;
the first sub-loop comprises a coil of a starting relay, a positive pressure electromagnetic valve and a coil of an electromagnetic valve time relay which are connected in parallel, and the positive pressure electromagnetic valve is connected in series with a normally closed contact of the electromagnetic valve time relay which is switched off in a power-on delay manner;
the switch loop comprises a starting button and a normally open contact of a starting relay which are connected in parallel;
the second loop comprises a negative pressure electromagnetic valve, a coil of the stop time relay and a normally open contact of the electromagnetic valve time relay, which is electrified and closed in a delayed manner;
the negative pressure electromagnetic valve is connected with a coil of the stop time relay in parallel and then connected with a normally open contact of the electromagnetic valve time relay which is electrified and closed in a delayed mode in series;
the first loop and the second loop are connected in parallel and then are connected in series with the switch loop to form a main loop, and the main loop is connected with a power supply;
the time of the scheduled delayed opening of the normally closed contact of the electrified delayed opening of the electromagnetic valve time relay is the same as the time of the scheduled delayed closing of the normally open contact of the electrified delayed closing of the electromagnetic valve time relay.
And a sealing ring is arranged between the upper cover and the shell.
And an oil-gas separator and a pressure regulating valve are connected in series on a positive pressure pipeline between the positive pressure gas source and the positive pressure electromagnetic valve.
And a negative pressure pipeline between the negative pressure air source and the negative pressure electromagnetic valve is connected with a negative pressure box in series.
The utility model discloses have following advantage:
use the utility model discloses, only need press the start button, just can realize regularly spraying glue solution automatically, inhale back, the resorption glue solution with the glue solution of injecting glue mouth department immediately at the spraying glue solution and reach the operation processes such as automatic disconnection circuit after the scheduled time, degree of automation is high, and each rubber coating cycle only needs to press a control operation of start button and can accomplish automatically, and it is very convenient to use.
The utility model discloses can be around stopping the injecting glue automatic realize system's pressure by the seamless conversion of malleation to negative pressure, stop injecting glue back glue liquid chamber through the glue solution of negative pressure with injecting glue mouth department very first time after the injecting glue, avoid appearing the glue dripping phenomenon.
The glue dripping phenomenon can be avoided, so that a glue solution cleaning process can be cancelled, and one name of staff is saved.
The glue injection port is smaller than the cross section of the hole to be coated, so that glue solution can be conveniently and directly sprayed into the hole, the existing brush coating mode is cancelled, the influence on the cleanliness of a coated product due to hair falling in brush coating is avoided, and the blockage of an engine oil nozzle when the product is used for an oil circuit of a motor vehicle is avoided.
Use the utility model discloses need not pour the glue solution, when stopping using, the area of contact of glue solution and air is very little, only for injecting glue mouth department, avoids the glue solution to pour back large tracts of land and air contact and leads to the glue solution to use three days, has reduced the glue solution extravagant. Use the utility model discloses later if in time use the blanking cover to seal the injecting glue mouth, then can avoid the glue solution extravagant.
Use the utility model discloses, injecting glue time constant guarantees that injecting glue time and injecting glue volume are very stable at the delay time of the normally closed contact of solenoid valve time relay's circular telegram time delay disconnection, uses the utility model discloses guaranteed that the rubber coating effect is very even stable.
When the negative pressure air source adopts a vacuum pump, the vacuum pump can be closed after the vacuum pump pumps the negative pressure to a preset lower limit value once, and the vacuum pump is restarted until the air pressure in the negative pressure box gradually rises to an upper limit value preset by a worker; this avoids frequent activation of the vacuum pump. When the negative pressure air source adopts the inherent negative pressure air path, the negative pressure box also plays a role in stabilizing the pressure, and the pressure fluctuation in the negative pressure air path is prevented from directly influencing the suction of the glue solution.
Drawings
Fig. 1 is a schematic structural view of a gluing device of the present invention;
FIG. 2 is a schematic diagram of a circuit configuration of the control circuit;
fig. 3 is a schematic structural view of the pneumatic mechanism.
Detailed Description
As shown in fig. 1 to 3, the positive pressure glue spreading mechanism of the present invention includes a glue spreading device 1, a pneumatic mechanism for driving the glue spreading device 1, and a control circuit for controlling the pneumatic mechanism;
the gluing device 1 comprises a shell 2, the bottom end of the shell 2 is connected with a cylindrical glue injection head 3, the bottom of the glue injection head 3 is in a circular table shape with a small lower part and a large upper part, and the bottom end of the glue injection head 3 is provided with a glue injection port 4; the area of the glue injection port 4 is smaller than the cross-sectional area of the hole to be glued;
a piston block 5 connected with the inner wall of the shell 2 in a sliding and sealing manner is arranged in the shell 2, and the piston block 5 and the inner wall of the shell 2 below the piston block enclose a glue solution cavity 6 for containing glue solution; the top of the shell 2 is connected with an upper cover 7, the piston block 5 and the inner wall of the shell 2 between the upper cover 7 and the piston block 5 enclose an air cavity 8; the upper cover 7 is provided with a vent hole 9 communicated with the air cavity 8, and the vent hole 9 is connected with a pneumatic mechanism.
The pneumatic mechanism comprises a main ventilation pipe 10 connected with the ventilation holes 9, the main ventilation pipe 10 is connected with a positive pressure pipeline 11 and a negative pressure pipeline 12, the positive pressure pipeline 11 is connected with a positive pressure air source 13, and the positive pressure pipeline 11 is connected with a positive pressure electromagnetic valve 14 in series; the negative pressure pipeline 12 is connected with a negative pressure air source 15, and a negative pressure electromagnetic valve 16 is connected in series on the negative pressure pipeline 12.
The positive pressure air source 13 may be a positive pressure air path inherent in a workshop, or may be a device for generating positive pressure, such as an air pump or an air compressor. The negative pressure air source 15 may be a negative pressure air path inherent in a workshop, or may be a device for generating negative pressure such as a vacuum pump.
The control circuit comprises a 24V direct-current power supply 17, a switch loop, a first loop and a second loop;
the first circuit comprises a first sub-circuit and a normally closed contact 18 which is electrified and opened in a delayed mode and is connected with the stop time relay in series;
the first sub-loop comprises a coil 19 of a starting relay, a positive pressure solenoid valve 14 and a coil 20 of a solenoid valve time relay which are connected in parallel, wherein the solenoid valve time relay is provided with a normally open contact which is closed in an electrifying delay mode and a normally closed contact which is opened in an electrifying delay mode; the positive pressure electromagnetic valve 14 is connected in series with a normally closed contact 25 of the electromagnetic valve time relay which is switched off in a power-on delay way; the switch loop comprises a starting button 23 (normally open button) and a normally open contact 24 of the starting relay which are connected in parallel;
the second loop comprises a negative pressure electromagnetic valve 16, a coil 21 of a stop time relay and a normally open contact 22 of the electromagnetic valve time relay, which is electrified and closed in a delayed mode;
the negative pressure electromagnetic valve 16 is connected in parallel with a coil 21 of the stop time relay and then connected in series with a normally open contact 22 of the electromagnetic valve time relay, which is electrified and closed in a delayed manner;
the first loop and the second loop are connected in parallel and then are connected in series with the switch loop to form a main loop, and the main loop is connected with a 24V direct current power supply 17;
the time of the scheduled delayed opening of the normally closed contact 25 of the electrified delayed opening of the electromagnetic valve time relay is the same as the time of the scheduled delayed closing of the normally open contact 22 of the electrified delayed closing of the electromagnetic valve time relay.
The time of the scheduled time delay disconnection of the normally closed contact 25 of the power-on time delay disconnection of the electromagnetic valve time relay is the same as the time of the scheduled time delay closing of the normally open contact 22 of the power-on time delay closing of the electromagnetic valve time relay, the negative pressure electromagnetic valve 16 is started simultaneously when the positive pressure electromagnetic valve 14 is closed, the seamless pressure conversion is realized, and therefore the glue solution at the glue injection port 4 is sucked back to the glue solution cavity 6 at the first time, and the glue dripping phenomenon is avoided.
A sealing ring 26 is arranged between the upper cover 7 and the shell 2.
An oil-gas separator 27 and a pressure regulating valve 28 are connected in series on the positive pressure pipeline 11 between the positive pressure gas source 13 and the positive pressure electromagnetic valve 14.
A negative pressure tank 29 is connected in series on the negative pressure pipeline 12 between the negative pressure air source 15 and the negative pressure electromagnetic valve 16.
The negative pressure box 29 can play a role in stabilizing negative pressure, when the negative pressure air source 15 adopts a vacuum pump, the vacuum pump can be closed after the vacuum pump pumps the negative pressure to a preset lower limit value for one time, and the vacuum pump is restarted after the air pressure in the negative pressure box 29 gradually rises to a preset upper limit value of a worker; this avoids frequent activation of the vacuum pump. When the negative pressure air source 15 adopts an inherent negative pressure air path, the negative pressure box 29 also plays a role in stabilizing the pressure, and the pressure fluctuation in the negative pressure air path is prevented from directly influencing the suction of the glue solution.
During the use, at first make the injecting glue mouth 4 alignment of rubber coating device 1 wait gummed screw hole or unthreaded hole, then press start button 23, after the first return circuit got electric, produced following operating condition:
1. the normally open contact 24 of the start relay is closed and thus remains conductive after the start button 23 is released.
2. The positive pressure electromagnetic valve 14 is electrified and conducted, positive pressure air provided by the positive pressure air source 13 enters the air cavity 8 of the gluing device 1 through the positive pressure pipeline 11 and the vent hole 9 on the upper cover 7, the piston block 5 is pushed to extrude glue in the glue cavity 6 downwards, and the glue is injected into a threaded hole or a unthreaded hole to be glued through the glue injection port 4.
3. When the starting time of the positive pressure electromagnetic valve 14 reaches the preset gluing time, the normally closed contact 25 of the electromagnetic valve time relay which is electrified and disconnected in a delayed mode is disconnected, and the positive pressure electromagnetic valve 14 is powered off, so that the gluing time is just the preset delay time of the normally closed contact 25 of the electromagnetic valve time relay which is electrified and disconnected in a delayed mode, and the gluing time is consistent every time.
4. Because the time of the scheduled delayed disconnection of the normally closed contact 25 of the power-on delayed disconnection of the electromagnetic valve time relay is the same as the time of the scheduled delayed closing of the normally open contact 22 of the power-on delayed closing of the electromagnetic valve time relay, when the positive pressure electromagnetic valve 14 is de-energized, the negative pressure electromagnetic valve 16 is energized, the second loop is conducted, the negative pressure provided by the negative pressure air source 15 enters the air cavity 8 of the glue coating device 1 through the negative pressure pipeline 12 and the vent hole 9 on the upper cover 7, and the glue is sucked back upwards in a sliding manner, so that the glue at the glue injection port 4 is sucked back into the glue cavity 6, and the glue dripping phenomenon is avoided.
5. After the second loop is conducted, the coil 21 of the stop time relay is electrified, and the delay time of the normally closed contact 18 which is electrified and delayed to be disconnected of the stop time relay is the time for resorption of the glue solution. After the second loop is conducted, after the preset glue solution suck-back time, the normally closed contact 18 which is turned off in a power-on delay mode of the stop time relay is turned off, and the first loop is turned off;
after the coil 19 of the starting relay loses power, the normally open contact 24 of the starting relay is disconnected, so that the whole control circuit is restored to the initial state when the starting button 23 is not pressed, and a gluing period is completed.
When the next hole is injected with glue, the start button 23 is pressed again, and the above process is repeated.
The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.
Claims (6)
1. Malleation rubber coating mechanism, its characterized in that: the gluing device comprises a gluing device, a pneumatic mechanism for driving the gluing device and a control circuit for controlling the pneumatic mechanism;
the gluing device comprises a shell, the bottom end of the shell is connected with a cylindrical glue injection head, the bottom of the glue injection head is in a round table shape with a small lower part and a large upper part, and the bottom end of the glue injection head is provided with a glue injection port; the glue injection port is smaller than the section of the hole to be coated with glue;
a piston block which is connected with the inner wall of the shell in a sliding and sealing manner is arranged in the shell, and a glue solution cavity for containing glue solution is formed by the piston block and the inner wall of the shell below the piston block; the top of the shell is connected with an upper cover, and the upper cover, the piston block and the inner wall of the shell between the upper cover and the piston block form an air cavity; the upper cover is provided with a vent hole communicated with the air cavity, and the vent hole is connected with the pneumatic mechanism.
2. The positive pressure gluing mechanism of claim 1, wherein: the pneumatic mechanism comprises a main ventilation pipe connected with the ventilation holes, the main ventilation pipe is connected with a positive pressure pipeline and a negative pressure pipeline, the positive pressure pipeline is connected with a positive pressure air source, and a positive pressure electromagnetic valve is connected in series on the positive pressure pipeline; the negative pressure pipeline is connected with a negative pressure air source and is connected with a negative pressure electromagnetic valve in series.
3. The positive pressure gluing mechanism of claim 2, wherein: the control circuit comprises a power supply, a switch loop, a first loop and a second loop;
the first loop comprises a first sub-loop and a normally closed contact of the stop time relay, which are connected in series and are switched off in a time-delay manner;
the first sub-loop comprises a coil of a starting relay, a positive pressure electromagnetic valve and a coil of an electromagnetic valve time relay which are connected in parallel, and the positive pressure electromagnetic valve is connected in series with a normally closed contact of the electromagnetic valve time relay which is switched off in a power-on delay manner;
the switch loop comprises a starting button and a normally open contact of a starting relay which are connected in parallel;
the second loop comprises a negative pressure electromagnetic valve, a coil of the stop time relay and a normally open contact of the electromagnetic valve time relay, which is electrified and closed in a delayed manner;
the negative pressure electromagnetic valve is connected with a coil of the stop time relay in parallel and then connected with a normally open contact of the electromagnetic valve time relay which is electrified and closed in a delayed mode in series;
the first loop and the second loop are connected in parallel and then are connected in series with the switch loop to form a main loop, and the main loop is connected with a power supply;
the time of the scheduled delayed opening of the normally closed contact of the electrified delayed opening of the electromagnetic valve time relay is the same as the time of the scheduled delayed closing of the normally open contact of the electrified delayed closing of the electromagnetic valve time relay.
4. A positive pressure gluing mechanism according to any one of claims 1 to 3, wherein: and a sealing ring is arranged between the upper cover and the shell.
5. A positive pressure gluing mechanism according to any one of claims 2 or 3, wherein: and an oil-gas separator and a pressure regulating valve are connected in series on a positive pressure pipeline between the positive pressure gas source and the positive pressure electromagnetic valve.
6. A positive pressure gluing mechanism according to any one of claims 2 or 3, wherein: and a negative pressure pipeline between the negative pressure air source and the negative pressure electromagnetic valve is connected with a negative pressure box in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921355721.9U CN210675781U (en) | 2019-08-21 | 2019-08-21 | Positive pressure gluing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921355721.9U CN210675781U (en) | 2019-08-21 | 2019-08-21 | Positive pressure gluing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210675781U true CN210675781U (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921355721.9U Expired - Fee Related CN210675781U (en) | 2019-08-21 | 2019-08-21 | Positive pressure gluing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210675781U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112221841A (en) * | 2020-09-11 | 2021-01-15 | 安徽华铂再生资源科技有限公司 | Dispensing device for storage battery processing and working method thereof |
-
2019
- 2019-08-21 CN CN201921355721.9U patent/CN210675781U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112221841A (en) * | 2020-09-11 | 2021-01-15 | 安徽华铂再生资源科技有限公司 | Dispensing device for storage battery processing and working method thereof |
| CN112221841B (en) * | 2020-09-11 | 2021-09-28 | 安徽华铂再生资源科技有限公司 | Dispensing device for storage battery processing and working method thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200605 Termination date: 20210821 |
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| CF01 | Termination of patent right due to non-payment of annual fee |