Double-liquid dispensing equipment

Abstract

The utility model relates to the technical field of dispensing, and discloses double-liquid dispensing equipment which comprises a base, a workbench capable of moving in the Y-axis direction is installed on the base, a bottom plate is arranged above the workbench and connected with the base through a portal frame, and glue supply assemblies are arranged on the front side and the rear side of the portal frame. A dispensing valve connected with the two glue supply assemblies is mounted on the bottom plate; the glue supply assembly comprises a supporting plate, at least two glue bases are arranged on the supporting plate, glue barrels used for providing glue are installed at the input ends of the glue bases, and the output ends of the glue bases are connected with the dispensing valve through reversing valves. Glue enters the dispensing valve after sequentially passing through the glue base and the reversing valve from the inside of the glue barrel, and under the action of the reversing valve, when glue in a certain glue barrel in the glue supply assembly is used up, the glue can be supplied by the other glue barrel without shutdown, so that the working efficiency of dispensing is improved, and the problem of glue solidification caused by shutdown is avoided.

Description

Technical Field

[0001] This utility model relates to the field of dispensing technology, specifically to a two-component dispensing device. Background Technology

[0002] With the continuous advancement of technology, AB dispensing technology has become an integral part of product manufacturing processes. As a two-component adhesive, it boasts advantages such as high transparency, high bonding strength, good toughness, oil resistance, water resistance, and environmental friendliness and non-toxicity, and has been widely applied in the electronics industry. AB dispensing machines, also known as two-component dispensing equipment, can accommodate dispensing of two-component adhesives with different mixing ratios. Compared to general single-component adhesive dispensing machines, they have an additional component and are characterized by versatility, 3D directional linkage, precise dispensing position, and simple operation.

[0003] However, existing AB dispensing machines on the market often require stopping the machine when changing the glue tank. This not only affects the dispensing efficiency, but also the glue may harden if the downtime is too long. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a two-component dispensing device. The adhesive passes through the glue holder and the reversing valve in sequence from the glue cartridge to the dispensing valve. When the adhesive in one of the glue cartridges in the glue supply assembly is used up, the reversing valve can be used to switch the glue supply to the other glue cartridge without stopping the machine, thereby improving the dispensing efficiency and avoiding the problem of adhesive curing caused by machine stoppage.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a two-component dispensing device, including a base, a worktable that can move along the Y-axis is installed on the base, a base plate that can move along the X-axis and Z-axis is provided above the worktable, the base plate is connected to the base through a gantry frame, glue supply components are provided on both the front and rear sides of the gantry frame, and a dispensing valve connected to the two glue supply components is installed on the base plate;

[0006] The glue supply assembly includes a support plate connected to the gantry frame. At least two glue holders are provided on the support plate. A glue cylinder for supplying glue is installed at the input end of the glue holder. The output end of the glue holder is connected to the dispensing valve through a reversing valve.

[0007] Optionally, the dispensing valve includes a valve body connected to the base plate, the valve body having two glue inlets, the two glue inlets being connected to two directional valves respectively, and a mixing tube for mixing two types of glue being installed at the bottom of the valve body.

[0008] Optionally, the valve body has two flow channels inside that communicate with the mixing chamber of the mixing tube. The two flow channels are respectively connected to the two glue inlets, and a conveying rod for conveying glue is rotatably installed inside the flow channels.

[0009] Optionally, a stirring rod for mixing the two adhesives is rotatably mounted inside the mixing chamber, and a dispensing needle communicating with the mixing chamber is installed at the end of the mixing tube.

[0010] Optionally, a mixing motor is installed on the top of the valve body, and conveying motors are installed on both sides of the mixing motor. The output end of the mixing motor passes through the valve body and is connected to the stirring rod, and the output end of the conveying motor extends into the flow channel and is connected to the conveying rod.

[0011] Optionally, a Y-axis linear module parallel to the Y-axis direction is mounted on the top of the base, and the worktable is mounted on the output end of the Y-axis linear module.

[0012] Optionally, an X-axis linear module parallel to the X-axis direction is installed on the gantry frame, the output end of the X-axis linear module is connected to a Z-axis linear module parallel to the Z-axis direction, and the base plate is installed on the output end of the Z-axis linear module.

[0013] Optionally, the gantry includes two longitudinal plates arranged opposite each other, the lower parts of the two longitudinal plates are fixedly connected by the base, the upper parts of the two longitudinal plates are fixedly connected by a crossbeam, and the X-axis linear module is installed on the front side of the crossbeam.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] (1) In this utility model, the glue passes through the glue seat and the reversing valve in sequence from the glue tube and enters the dispensing valve. Under the action of the reversing valve, when the glue in one of the glue tubes in the glue supply assembly is used up, the glue can be switched to be supplied by another glue tube without stopping the machine, thereby improving the dispensing efficiency and avoiding the glue curing problem caused by the machine stoppage.

[0016] (2) In this utility model, the glue is conveyed by a conveyor rod spiral conveyor. By precisely controlling the rotation speed and number of turns of the conveyor rod, the glue can be mixed strictly according to the set ratio and the specified amount of glue can be output accurately, ensuring the accuracy of measurement. The output error of the glue can be controlled within a small range, thereby ensuring the consistency of the quality of the glued products.

[0017] (3) In this utility model, the two types of glue flowing into the mixing tube can be dynamically mixed under the action of the stirring rod. Dynamic mixing can make the two-component glue achieve uniform mixing at the micro level. Compared with static mixing, dynamic mixing can effectively avoid local uneven mixing and can complete the mixing process in a short time, which is highly efficient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the two-liquid dispensing device in an embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of the two-component dispensing device in this embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the adhesive supply assembly in an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the dispensing valve in an embodiment of this utility model;

[0022] Among them, 1. base; 2. gantry frame;

[0023] 3. Adhesive supply assembly; 31. Support plate; 32. Adhesive holder; 33. Reversing valve; 34. Adhesive cartridge; 4. Base plate;

[0024] 5. Dispensing valve; 51. Valve body; 52. Flow channel; 53. Conveying rod; 54. Glue inlet; 55. Conveying motor; 56. Mixing motor; 6. Mixing pipe; 61. Mixing chamber; 62. Stirring rod;

[0025] 7. Worktable; 8. Y-axis linear module; 9. X-axis linear module; 10. Z-axis linear module. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0027] like Figure 1 , Figure 2As shown, a two-component dispensing device includes a base 1, a Y-axis linear module 8 mounted on the top of the base 1, and a worktable 7 for supporting the dispensing product connected to the output end of the Y-axis linear module 8; a gantry 2 mounted on the outside of the base 1, an X-axis linear module 9 mounted on the gantry 2, a Z-axis linear module 10 connected to the output end of the X-axis linear module 9, a base plate 4 connected to the output end of the Z-axis linear module 10, a dispensing valve 5 mounted on the base plate 4, a mixing tube 6 provided at the bottom of the dispensing valve 5, and a dispensing needle connected to the end of the mixing tube 6; glue supply components 3 are provided on both the front and rear sides of the gantry 2, and the output ends of both glue supply components 3 are connected to the dispensing valve 5.

[0028] As described above, under the action of the Y-axis linear module 8, the worktable 7 can move horizontally along the Y-axis direction. Under the action of the X-axis linear module 9 and the Z-axis linear module 10, the base plate 4 can move along the X-axis and Z-axis directions. The dispensing valve 5 is fixedly installed on the base plate 4 and can move synchronously with it.

[0029] The two glue supply components 3 on both sides of the gantry frame 2 are used to supply two different glues. Under the action of the glue dispensing valve 5, the glue flows out from the glue supply component 3, and after passing through the glue dispensing valve 5, it flows into the mixing tube 6. After the two glues are mixed in the mixing chamber 61 of the mixing tube 6, they are discharged from the end of the glue dispensing needle to achieve glue dispensing.

[0030] Among them, the X-axis linear module 9, the Y-axis linear module 8, and the Z-axis linear module 10 are parallel to the X, Y, and Z axes, respectively, and all three adopt existing technologies, including but not limited to linear electric cylinders.

[0031] Furthermore, the gantry 2 includes two longitudinal plates arranged opposite each other. The lower parts of the two longitudinal plates are fixedly connected by the base 1, and the upper parts of the two longitudinal plates are fixedly connected by the crossbeam. The X-axis linear module 9 is installed on the front side of the crossbeam.

[0032] like Figure 3 As shown, the glue supply assembly 3 includes a support plate 31 connected to the gantry 2. A glue seat 32 is provided on the support plate 31. A glue cylinder 34 for supplying glue is installed at the input end of the glue seat 32. The output end of the glue seat 32 is connected to the dispensing valve 5 through a reversing valve 33.

[0033] As described above, at least two glue seats 32 are provided on the support plate 31. The glue seat 32 is cylindrical in shape. One end of the glue seat 32 is provided with a mounting groove for clamping the glue cylinder 34. This end is the input end, and the other end is the output end, which is connected to the input end of the reversing valve 33. The output end of the reversing valve 33 is connected to the glue inlet 54 of the dispensing valve 5.

[0034] Within the same glue supply assembly 3, there is a delivery channel between each glue holder 32 and the dispensing valve 5. The function of the reversing valve 33 is to ensure that only one delivery channel of each glue supply assembly 3 works at the same time. Based on this, when the glue in a glue cartridge 34 in the glue supply assembly 3 runs out, the reversing valve 33 switches to another delivery channel, and another glue cartridge 34 supplies glue. Then the used glue cartridge 34 is replaced, so that the glue cartridge 34 can be replaced without stopping the machine, thereby improving the glue dispensing efficiency and avoiding glue curing problems caused by machine stoppage.

[0035] Furthermore, a sensor is also installed on the glue holder 32 to detect the amount of glue in the glue tube 34. When it detects that the glue in the glue tube 34 is used up, it will issue a reminder and output a signal to the control system, which will then send a command to the reversing valve 33 to switch channels.

[0036] One end of the rubber sleeve 34 is embedded in the mounting groove, and the two have good sealing performance; at the same time, in order to facilitate its disassembly and assembly, a corresponding snap-fit ​​structure is provided at the input end of the rubber base 32 to facilitate fixing or removing the rubber sleeve 34.

[0037] like Figure 2 , Figure 4 As shown, the dispensing valve 5 includes a valve body 51 fixedly mounted on the base plate 4. The valve body 51 has two flow channels 52 that communicate with the mixing chamber 61. The valve body 51 has two glue inlets 54 on its outer side. The two flow channels 52 are respectively connected to the two glue inlets 54. The two glue inlets 54 are respectively connected to two reversing valves 33. A conveying rod 53 for conveying glue is rotatably installed inside the flow channels 52. A stirring rod 62 for mixing the two glues is rotatably installed inside the mixing chamber 61.

[0038] The mixing tube 6 is installed at the bottom of the valve body 51. The mixing chamber 61 inside the tube is used to mix the two types of glue. One end of the mixing chamber 61 is connected to the flow channel 52, and the other end is connected to the dispensing needle. The dispensing needle is installed at the end of the mixing tube 6.

[0039] Specifically, a mixing motor 56 is installed on the top of the valve body 51, and conveying motors 55 are installed on both sides of the mixing motor 56. The output end of the mixing motor 56 passes through the valve body 51 and is connected to the stirring rod 62. The output end of the conveying motor 55 extends into the flow channel 52 and is connected to the conveying rod 53.

[0040] Two glue supply components 3 respectively supply AB glue. The AB glue is drawn into the flow channel 52 by two conveying rods 53 and finally flows into the mixing chamber 61. The two are stirred by the stirring rod 62. The mixed glue is discharged through the dispensing needle to complete the dispensing on the product.

[0041] The adhesive is delivered via a spiral conveyor rod 53. By precisely controlling the rotation speed and number of revolutions of the conveyor rod 53, the adhesive can be precisely mixed according to the set ratio and accurately output the specified amount of adhesive, ensuring the accuracy of measurement. The output error of the adhesive can be controlled within a small range, thereby ensuring the consistency of the quality of the dispensing products. Furthermore, its conveying flow rate is not easily affected by changes in the density, viscosity, and other characteristics of the adhesive, and can continuously and stably supply adhesive, ensuring the consistency and reliability of dispensing. This ensures that the amount of adhesive used at each point or along each line of dispensing remains uniform, avoiding problems such as uneven dispensing thickness, insufficient or excessive adhesive due to unstable adhesive flow.

[0042] The two types of adhesive flowing into the mixing tube 6 can be dynamically mixed under the action of the stirring rod 62. Dynamic mixing can achieve uniform mixing of the two-component adhesive at the microscopic level. Compared with static mixing, dynamic mixing can effectively avoid uneven mixing in some areas and can complete the mixing process in a short time, which is highly efficient.

[0043] Working principle:

[0044] The product to be coated with glue is fixed on the worktable 7 and can move along the Y-axis direction driven by the Y-axis linear module 8. The dispensing valve 5, mixing tube 6 and dispensing needle can move along the X-axis and Z-axis directions under the drive of the X-axis linear module 9 and Z-axis linear module 10, thereby realizing three-axis linkage, which facilitates dispensing of glue on the product with multiple trajectories.

[0045] According to the mixing ratio, the two conveying motors 55 rotate at corresponding speeds, which in turn drive the conveying rod 53 to rotate, drawing the corresponding glue from the glue cylinders 34 of the two glue supply components 3. After passing through the glue seat 32, the reversing valve 33 and the glue inlet 54, the glue enters the flow channel 52. Then, the two glues merge into the mixing chamber 61. The stirring rod 62 driven by the mixing motor 56 rotates rapidly to stir and mix the two glues. The mixed glue is then discharged along the dispensing needle.

[0046] With the combined action of the reversing valve 33 and multiple glue seats 32, the equipment can also replace the glue cartridge 34 without stopping the machine, which greatly improves the efficiency of the dispensing work.

[0047] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A two-component dispensing device, comprising a base (1), wherein a worktable (7) movable along the Y-axis is mounted on the base (1), characterized in that: The workbench (7) is provided with a base plate (4) that can move along the X-axis and Z-axis. The base plate (4) is connected to the base (1) through the gantry frame (2). The gantry frame (2) is provided with glue supply components (3) on both the front and rear sides. The base plate (4) is provided with glue dispensing valves (5) connected to the two glue supply components (3). The glue supply assembly (3) includes a support plate (31) connected to the gantry (2). At least two glue seats (32) are provided on the support plate (31). A glue cylinder (34) for supplying glue is installed at the input end of the glue seat (32). The output end of the glue seat (32) is connected to the dispensing valve (5) through a reversing valve (33).

2. The two-component dispensing equipment according to claim 1, characterized in that: The dispensing valve (5) includes a valve body (51) connected to the base plate (4). The valve body (51) is provided with two glue inlets (54). The two glue inlets (54) are respectively connected to two reversing valves (33). A mixing tube (6) for mixing two kinds of glue is installed at the bottom of the valve body (51).

3. The two-component dispensing equipment according to claim 2, characterized in that: The valve body (51) has two flow channels (52) inside that are connected to the mixing chamber (61) of the mixing pipe (6). The two flow channels (52) are respectively connected to the two glue inlets (54), and a conveying rod (53) for conveying glue is rotatably installed inside the flow channels (52).

4. The two-component dispensing equipment according to claim 3, characterized in that: The mixing chamber (61) is rotatably equipped with a stirring rod (62) for mixing the two adhesives, and the end of the mixing tube (6) is equipped with a dispensing needle that communicates with the mixing chamber (61).

5. The two-component dispensing equipment according to claim 4, characterized in that: A mixing motor (56) is installed on the top of the valve body (51). Conveying motors (55) are installed on both sides of the mixing motor (56). The output end of the mixing motor (56) passes through the valve body (51) and is connected to the stirring rod (62). The output end of the conveying motor (55) extends into the flow channel (52) and is connected to the conveying rod (53).

6. The two-component dispensing equipment according to claim 1, characterized in that: The base (1) is equipped with a Y-axis linear module (8) parallel to the Y-axis direction, and the worktable (7) is installed at the output end of the Y-axis linear module (8).

7. The two-component dispensing equipment according to claim 1, characterized in that: The gantry (2) is equipped with an X-axis linear module (9) parallel to the X-axis direction. The output end of the X-axis linear module (9) is connected to a Z-axis linear module (10) parallel to the Z-axis direction. The base plate (4) is installed at the output end of the Z-axis linear module (10).

8. The two-component dispensing equipment according to claim 7, characterized in that: The gantry (2) includes two longitudinal plates arranged opposite each other. The lower parts of the two longitudinal plates are fixedly connected by the base (1), and the upper parts of the two longitudinal plates are fixedly connected by a crossbeam. The X-axis linear module (9) is installed on the front side of the crossbeam.

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