Material preparation glue supply device

Abstract

The utility model relates to a stock glue supply device which comprises a supply device body, the supply device body is composed of a raw material glue barrel, a glue tank, a vacuum device, an air cylinder type material pressing pump set and a piston metering pump head mechanism, one end of the glue tank is connected with the raw material glue barrel through a material suction pipe, and the other end of the glue tank is connected with the vacuum device. The vacuumizing device is used for vacuumizing the interior of a glue tank, a pipeline with a valve is arranged at the bottom of the glue tank and connected with an inlet of an air cylinder type material pressing pump set, an outlet of the air cylinder type material pressing pump set is connected with a piston metering pump head mechanism through a material supply glue pipe, and a glue injection head is arranged in the middle position under the piston metering pump head mechanism. Glue in the raw material glue barrel enters the glue tank through the material suction pipe, is stirred through the stirring device of the glue tank, then sequentially passes through the air cylinder type material pressing pump set and the material pressing mechanism piston metering pump head mechanism, and flows out of the glue injection head for glue injection. The glue adding device has the advantages of simple and reasonable structure, prevention of glue adding, improvement of production efficiency and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of power module glue filling, and relates to a material preparation glue supply device, and more specifically, to a material preparation glue supply device under a full-automatic vacuum state. Background Art

[0002] With the development of science and technology, the glue filling process is widely used in various fields of the electronics industry, especially in the power module packaging field of the electronics industry. Many products need to be filled with glue to achieve the effects of sealing, fixing, waterproofing, etc.

[0003] Most of the existing glue supply devices are for normal pressure feeding. The degassing of glue feeding requires independent vacuuming time to eliminate the bubbles in the tank. During the glue supply process, the equipment needs to be shut down to wait for production interruption. The glue adding valve is manually closed after the feeding is completed, which greatly takes up the production time and increases the risk of over-adding glue, resulting in the production time of the glue filling process being occupied, affecting production efficiency. Therefore, a preparation glue supply device is designed to overcome the above problems. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a material preparation glue supply device which has a simple and reasonable structure and prevents excessive glue addition caused by manual operation, thereby greatly improving production efficiency.

[0005] The utility model is realized through the following technical scheme: a preparation glue supply device, comprising a supply device body, the supply device body is composed of a raw glue barrel filled with glue, a glue tank with a stirring device arranged inside, a vacuum device, a cylinder type pressure pump group and a piston metering pump head mechanism, one end of the glue tank is connected to the raw glue barrel through a suction pipe, and the other end is connected to the vacuum device for vacuuming the inside of the glue tank, a pipeline with a valve is arranged at the bottom of the glue tank, the pipeline is connected to the inlet of the cylinder type pressure pump group, the outlet of the cylinder type pressure pump group is connected to the piston metering pump head mechanism through a feeding hose, and a glue injection head is arranged at the middle position just below the piston metering pump head mechanism, the glue in the raw glue barrel enters the glue tank through the suction pipe, is stirred by the stirring device of the glue tank, and then flows out from the glue injection head for glue injection after passing through the cylinder type pressure pump group and the piston metering pump head mechanism of the pressure mechanism in sequence.

[0006] Preferably: the glue tank is composed of a glue tank body and a tank cover, the tank cover is arranged directly above the glue tank body, and a first through hole for installing a fixed stirring device and a second through hole for installing a vacuum device are respectively arranged on the glue tank body, wherein the stirring device is composed of a stirring motor and a stirring fan blade, wherein the stirring motor is installed on the tank cover, a driving shaft penetrating the tank cover is installed below the stirring motor, and the stirring fan blade is installed at the end of the driving shaft away from the stirring motor and located near the bottom of the glue tank; the vacuum device is composed of a vacuum pump connector, a vacuum pipeline, a vacuum filter and a glue barrel vacuum pump, the vacuum pump connector is installed in the second through hole of the glue tank body, the vacuum pump connector is connected to one end of the vacuum filter, the other end of the vacuum filter is connected to the vacuum pipeline, the vacuum pipeline is connected to the glue barrel vacuum pump, the vacuum filter is used to prevent impurity oil mist, particulate matter and liquid from entering the vacuum device, and a vacuum sensor is also installed on the tank cover.

[0007] Preferably, the piston metering pump head mechanism is composed of a piston block, a piston rod sleeve, a glue storage chamber and a stepper motor. The piston block is connected to the stepper motor. A piston rod sleeve is arranged below the piston block. One end of the piston rod sleeve is connected to the piston block, and the other end is connected to the glue storage chamber. The side of the glue storage chamber is connected to the cylinder type pressure pump group through a feeding hose. A glue injection head is arranged in the middle of the bottom of the glue storage chamber. The rotation of the stepper motor drives the piston block to move downward, and the glue injection head injects glue.

[0008] Preferably, a feed port is provided on the tank cover, an automatic suction valve is installed on the feed port, the automatic suction valve is connected to the suction pipe, and a buffer ramp for feeding glue in the barrel is installed at the bottom of the automatic suction valve below the tank cover.

[0009] Preferably, the tank cover is respectively provided with an analog liquid level sensor directly inserted into the glue tank body and a high liquid level induction protection switch matched with the analog liquid level sensor.

[0010] Preferably, the valve of the bottom pipe of the glue tank is a feeding ball valve, and a discharge pipe with a discharge ball valve is provided on the glue tank on one side of the bottom pipe, and the discharge pipe is used for glue tank maintenance and cleaning of the barrel and replacement of silicone.

[0011] Preferably, a barrel observation window is installed on the barrel cover of the tank body to facilitate observation of the internal situation of the glue tank body.

[0012] Preferably, the glue tank, tank cover, stirring device and cylinder type press pump group are at least two groups, which are respectively arranged on both sides of the piston metering pump head mechanism.

[0013] Preferably, the supply device body is also equipped with a touch screen with a PLC control system for electrical assembly control and a three-color buzzer alarm indicator light for alarm information feedback prompts.

[0014] The beneficial effects of the utility model are as follows:

[0015] The glue supply device for material preparation designed by the utility model realizes automatic supply and gluing of glue under a vacuum state, solves the problem that the equipment needs to be shut down to wait for production interruption during the glue supply process, and the glue adding valve needs to be manually closed after the material supply is completed, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the vacuum filter in the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the vacuum pump for the rubber barrel of the utility model;

[0019] Figure 4 It is a structural schematic diagram of a three-color buzzer alarm indicator light in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the touch screen in the utility model. DETAILED DESCRIPTION

[0021] In order to enable ordinary technicians in the field to more clearly understand the purpose, technical solutions and advantages of the utility model, the utility model is further explained below in conjunction with the accompanying drawings and embodiments.

[0022] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "horizontal" and "vertical" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention. They do not indicate or imply that the device or component referred to must have a specific direction and therefore should not be understood as a limitation on the present invention.

[0023] The utility model will be described in detail below with reference to the accompanying drawings: Figure 1As shown, a preparation glue supply device comprises a supply device body, wherein the supply device body 1 is composed of a raw material glue barrel 2 filled with glue, a glue tank 3 with a stirring device arranged inside, a vacuum device, a cylinder type pressure pump group 4 and a piston metering pump head mechanism 5, one end of the glue tank 3 is connected to the raw material glue barrel 2 through a suction pipe 6, and the other end is connected to the vacuum device for vacuumizing the inside of the glue tank 3, a pipe 7 with a valve is arranged at the bottom of the glue tank 3, the pipe 7 is connected to the inlet of the cylinder type pressure pump group 4, the outlet of the cylinder type pressure pump group 4 is connected to the piston metering pump head mechanism 5 through a feeding hose 8, and a glue injection head 9 is arranged at the middle position directly below the piston metering pump head mechanism 5, the glue in the raw material glue barrel 2 enters the glue tank 3 through the suction pipe 6, is stirred by the stirring device of the glue tank 3, and then flows out from the glue injection head 9 for glue injection after passing through the cylinder type pressure pump group 4 and the pressure mechanism piston metering pump head mechanism 5 in turn.

[0024] The glue tank 3 is composed of a glue tank body 10 and a tank cover 11, the tank cover 11 is arranged directly above the glue tank body 10, and a first through hole 12 for installing a fixed stirring device and a second through hole 13 for installing a vacuum device are respectively arranged on the glue tank body 10, wherein the stirring device is composed of a stirring motor 14 and a stirring fan 15, wherein the stirring motor 14 is installed on the tank cover 11, and a driving shaft 16 penetrating the tank cover 11 is installed below the stirring motor 14, and the end of the driving shaft 16 away from the stirring motor 14 is located near the bottom of the glue tank 10 A stirring fan blade 15 is installed; the vacuum device consists of a vacuum pump connector 17, a vacuum pipe (not shown in the figure), a vacuum filter 18 and a glue barrel vacuum pump 19, the vacuum pump connector 17 is installed in the second through hole 13 of the glue tank body 10, the vacuum pump connector 17 is connected to one end of the vacuum filter 18, and the other end of the vacuum filter 18 is connected to the vacuum pipe, the vacuum pipe is connected to the glue barrel vacuum pump 19, the vacuum filter 18 is used to prevent impurity oil mist, particulate matter and liquid from entering the vacuum device, and a vacuum sensor 34 is also installed on the tank cover 11.

[0025] The tank cover 11 is provided with a feed port 23, and an automatic suction valve 24 is installed on the feed port 23. The automatic suction valve 24 is connected to the suction pipe 6. A buffer ramp 25 for feeding glue in the barrel is installed at the bottom of the automatic suction valve 24 and below the tank cover 11 to reduce a large number of bubbles caused by excessive drop of glue. The tank cover 11 is respectively installed with an analog liquid level sensor 26 directly inserted into the glue tank and a high liquid level induction protection switch 27 matched with the analog liquid level sensor 26.

[0026] The valve of the pipe 7 at the bottom of the glue tank 10 is a feeding ball valve 29, and a discharge pipe 31 with a discharge ball valve 30 is provided on one side of the pipe 7 on the glue tank 10. The discharge pipe 31 is used for maintenance of the glue tank 10 and cleaning of the barrel and replacement of silica gel. A barrel observation window 28 is installed on the tank cover 11 for convenient observation of the internal situation of the glue tank 10.

[0027] The tank cover and the glue tank in the utility model are sealed to form a closed independent glue storage barrel. The vacuum pump connector 17 used to connect the tank and the vacuum pump in the utility model is fixed on the tank cover 11, the vacuum sensor 31 for measuring the vacuum pressure state in the tank is fixed on the tank cover 11, the barrel observation window for checking the internal situation of the barrel is fixed on the tank cover 11, and the analog liquid level sensor 26 responsible for high and low liquid level sensing and monitoring liquid level information extends into the barrel. The high liquid level sensing protection switch 27 that prevents overfilling of bubbles when the glue is sucked extends into the barrel, and the automatic suction valve 24 that controls the glue feeding is fixed on the tank cover 11, and the lower end extends into the barrel. An automatic suction valve 24 for controlling glue feeding is fixed on the tank cover 11 just below the feed port. A stirring motor 14 for setting an automatic stirring cycle is fixed in the middle of the tank cover 11. A stirring blade 15 for degassing glue is connected to the screw of the stirring motor 14 and extends to the center of the barrel.

[0028] The piston metering pump head mechanism 5 is composed of a piston block 20, a piston rod sleeve 21, a glue storage chamber 22 and a stepper motor. The piston block 20 is connected to the stepper motor (not shown in the figure). A piston rod sleeve 21 is arranged below the piston block 20. One end of the piston rod sleeve 21 is connected to the piston block 20, and the other end is connected to the glue storage chamber 22. The side of the glue storage chamber 22 is connected to the cylinder type pressure pump group 4 through the feeding hose 8. A glue injection head 9 is arranged at the middle position of the bottom of the glue storage chamber 22. The rotation of the stepper motor drives the piston block 20 to move downward, and the glue injection head 9 injects glue.

[0029] The glue tank 10, tank cover 11, stirring device and cylinder type press pump group 4 are at least two groups, which are respectively arranged on both sides of the piston metering pump head mechanism 5. The supply device body 1 is also equipped with a touch screen 32 with a PLC control system for electrical assembly control and a three-color buzzer alarm indicator 33 for alarm information feedback prompts.

[0030] The glue supply device for material preparation provided by the utility model is mainly used for raw material replenishment and glue transportation of raw material glue barrels in a vacuum environment, which solves the problem that the equipment needs to be stopped and waited during the glue supply process, and the glue adding valve needs to be manually closed after the material supply is completed, thereby improving production efficiency.

[0031] The working characteristics of the present invention are as follows:

[0032] The automatic material suction valve in the utility model is a cylinder locking mechanism, which will be opened only when glue needs to be supplemented, thereby further ensuring the sealing performance of the glue feeding port.

[0033] The vacuum filter in the utility model has two joints, one side is connected to the vacuum pump connector, and the other side is connected to the vacuum pipeline. The vacuum pipeline is connected to the independent glue barrel vacuum pump through a flange, and all the pipeline joints in the glue supply device are fixedly connected by clamps to ensure airtightness.

[0034] The touch screen controlled by the electrical assembly in the utility model is used to facilitate the setting of parameter control and status switching; the three-color buzzer alarm indicator light can feedback the alarm information prompted by the touch screen and display the status of the feeding equipment in time through color (all using conventional existing technologies).

[0035] The specific process of circulation in the utility model is as follows:

[0036] It should be noted that each glue tank has a capacity of 60L, and the liquid level control of the tank can be set, high liquid level alarm: 90%, low liquid level alarm: 10%, automatic suction stop position: 80%, automatic suction replenishment position: 20%, and the vacuum value in the tank is set, the working vacuum value: 3mbar, the automatic suction vacuum value: 1mbar. The glue supply device has an independent PLC control, the distribution cabinet is convenient for equipment debugging, the function on / off button: automatic suction function on / off, stirring function on / off, the touch screen can set the parameter setting interface according to time requirements: vacuum parameter setting, stirring parameter setting, cycle parameter setting, suction parameter setting. There are also independent vacuum pump monitoring parameter settings in the touch screen: vacuum pump operation monitoring time, vacuum pump upper / lower vacuum deviation supplementary setting, etc. The above functions are all conventional designs and can be achieved through existing technologies.

[0037] The above devices and functions are introduced in detail with examples:

[0038] The simulated feeding device mode is currently in automatic mode, and the working vacuum environment in each glue tank is 3mbar. Each glue tank supplies glue to the glue cylinder pressure pump group under each tank through the feeding ball valve. After the internal cylinder switching of the glue cylinder pressure pump group (existing technology), the glue is supplied to the piston metering pump head mechanism through the feeding hose. At this time, the inside of the piston rod cylinder sleeve is filled with glue and the piston rod is lifted. The piston pressure block is driven downward by the rotation of the stepper motor, and the glue injection head begins to flow out from the glue outlet according to the measured glue amount, and the glue is injected through the connected mixing hose. When the analog liquid level sensor in the machine senses that the liquid level of the current glue tank reaches the automatic suction level parameter set on the touch screen, the glue barrel vacuum pump starts to operate and evacuates the vacuum environment in the glue tank to 1mbar. At this time, open the automatic suction valve of the corresponding suction pipe. When the automatic suction valve is opened, the stirring motor drives the stirring blades to start working by default according to the set stirring parameters to rotate and degas. The glue in the raw material rubber barrel is affected by the vacuum environment and enters the glue tank through the suction pipe and the glue feeding buffer ramp in the barrel. When the analog liquid level sensor senses that the liquid level of any current glue tank reaches the automatic suction stop position, the suction stops. The independent glue barrel vacuum pump stops operating, and the stirring blades driven by the stirring motor will continue to work until the time set by the stirring parameters is reached to end the stirring action. The raw material replenishment process will not affect the piston metering pump head mechanism driving the injection head to inject glue.

[0039] The specific embodiments described herein are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A glue supply device for preparing materials, comprising a supply device body, characterized in that: The supply device body (1) is composed of a raw material glue barrel (2) containing glue, a glue tank (3) with a stirring device arranged inside, a vacuum device, a cylinder type pressurizing pump group (4) and a piston metering pump head mechanism (5). One end of the glue tank (3) is connected to the raw material glue barrel (2) through a suction pipe (6), and the other end is connected to the vacuum device for evacuating the inside of the glue tank (3). A pipe (7) with a valve is arranged at the bottom of the glue tank (3). The pipe (7) is connected to the cylinder type pressurizing pump group ( 4), the outlet of the cylinder type pressurizing pump group (4) is connected to the piston metering pump head mechanism (5) through a feed rubber hose (8), and a glue injection head (9) is arranged at a middle position just below the piston metering pump head mechanism (5). The glue in the raw material glue barrel (2) enters the glue tank (3) through the suction pipe (6), is stirred by the stirring device of the glue tank (3), and then passes through the cylinder type pressurizing pump group (4) and the pressurizing mechanism piston metering pump head mechanism (5) in sequence, and then flows out from the glue injection head (9) for glue injection.

2. The glue supply device for material preparation according to claim 1, characterized in that: The glue tank (3) is composed of a glue tank body (10) and a tank body cover (11), wherein the tank body cover (11) is arranged directly above the glue tank body (10), and the glue tank body (10) is provided with a first through hole (12) for installing a fixed stirring device and a second through hole (13) for installing a vacuum device, respectively, wherein the stirring device is composed of a stirring motor (14) and a stirring fan (15), wherein the stirring motor (14) is installed on the tank body cover (11), and a driving shaft (16) penetrating the tank body cover (11) is installed below the stirring motor (14), and an end of the driving shaft (16) away from the stirring motor (14) is located inside the glue tank body (10). A stirring fan blade (15) is installed near the bottom; the vacuum device is composed of a vacuum pump connector (17), a vacuum pipeline, a vacuum filter (18) and a glue barrel vacuum pump (19); the vacuum pump connector (17) is installed in the second through hole (13) of the glue tank body (10); the vacuum pump connector (17) is connected to one end of the vacuum filter (18); the other end of the vacuum filter (18) is connected to the vacuum pipeline; the vacuum pipeline is connected to the glue barrel vacuum pump (19); the vacuum filter (18) is used to prevent impurities, oil mist, particles and liquid from entering the vacuum device; a vacuum sensor (34) is also installed on the tank body cover (11).

3. The glue supply device for material preparation according to claim 1, characterized in that: The piston metering pump head mechanism (5) is composed of a piston pressing block (20), a piston rod cylinder sleeve (21), a glue storage chamber (22) and a stepping motor. The piston pressing block (20) is connected to the stepping motor. A piston rod cylinder sleeve (21) is arranged below the piston pressing block (20). One end of the piston rod cylinder sleeve (21) is connected to the piston pressing block (20), and the other end is connected to the glue storage chamber (22). The side of the glue storage chamber (22) is connected to the cylinder type pressure pump group (4) through a feeding hose (8). A glue injection head (9) is arranged at the middle position of the bottom of the glue storage chamber (22). The stepping motor rotates to drive the piston pressing block (20) to move downward, and the glue injection head (9) performs glue injection.

4. The glue supply device for material preparation according to claim 2, characterized in that: The tank body barrel cover (11) is provided with a feed port (23), and an automatic suction valve (24) is installed on the feed port (23). The automatic suction valve (24) is connected to the suction pipe (6). A barrel glue feeding buffer ramp (25) is installed at the bottom of the automatic suction valve (24) and below the tank body barrel cover (11) to reduce a large number of bubbles caused by excessive drop in glue.

5. The glue supply device for material preparation according to claim 4, characterized in that: An analog liquid level sensor (26) directly inserted into the glue tank body and a high liquid level induction protection switch (27) matched with the analog liquid level sensor (26) are respectively installed on the tank body barrel cover (11).

6. The glue supply device for material preparation according to claim 5, characterized in that: The valve of the pipe (7) at the bottom of the glue tank (10) is a feed ball valve (29), and a discharge pipe (31) with a discharge ball valve (30) is provided on one side of the pipe (7) and located on the glue tank (10). The discharge pipe (31) is used for maintenance of the glue tank (10) and cleaning of the barrel and replacement of silica gel.

7. The glue supply device for material preparation according to claim 6, characterized in that: The tank cover (11) is provided with a barrel observation window (28) for conveniently observing the internal conditions of the glue tank (10).

8. The glue supply device for material preparation according to claim 7, characterized in that: The glue tank body (10), tank body cover (11), stirring device and cylinder type press pump group (4) are each at least two groups, which are respectively arranged on both sides of the piston metering pump head mechanism (5).

9. The glue supply device for material preparation according to claim 1, characterized in that: The supply device body (1) is also equipped with a touch screen (32) with a PLC control system for controlling the electrical assembly and a three-color buzzer alarm indicator light (33) for providing alarm information feedback prompts.

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