Automatic replacing mechanism for dispensing valve nozzle

Abstract

The utility model discloses an automatic replacing mechanism of a dispensing valve nozzle, the nozzle is connected to the lower end of a glue valve through threads, the automatic replacing mechanism comprises a bottom substrate, a base arranged above the bottom substrate and a sleeve matched with the nozzle, the sleeve is rotatably arranged on the upper surface of a top plate of the base, the upper end of a rotating shaft is connected with the sleeve, and the lower end of the rotating shaft is connected with the glue valve. The rotating shaft in transmission connection with a driving mechanism is used for driving the sleeve to rotate, and at least one set of protrusions and grooves matched with each other is arranged between the inner wall of the sleeve where the nozzle can be embedded and the outer side surface of the nozzle. The upper surface of the bottom substrate and the lower surface of the base are connected through at least three elastic pieces which are vertically arranged and distributed at intervals. According to the automatic replacement mechanism for the dispensing valve nozzle, in the process of disassembling the nozzle, the automatic alignment and embedding between the nozzle and the sleeve can be automatically realized.

Description

Technical Field

[0001] This utility model relates to the field of dispensing technology, and in particular to an automatic replacement mechanism for a dispensing valve nozzle. Background Technology

[0002] Dispensing technology primarily achieves functions such as fixation and insulation by applying fluids through coating, potting, or dripping onto products. It is widely used in the manufacturing of products such as aircraft and toys. To ensure product quality, the adhesive dispensed by the dispensing machine is crucial. In existing technologies, the nozzles of dispensing machines require manual, periodic replacement. Manual replacement necessitates aligning and embedding the nozzle and sleeve, resulting in low efficiency and consequently reducing the automation level and efficiency of the entire dispensing process. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an automatic replacement mechanism for a dispensing valve nozzle. This automatic replacement mechanism can automatically align and insert the nozzle and the sleeve, thereby improving the accuracy and efficiency of disassembly and assembly.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an automatic replacement mechanism for a dispensing valve nozzle, wherein the nozzle is threadedly connected to the lower end of the dispensing valve, comprising: a base plate, a base disposed above the base plate, and a sleeve that cooperates with the nozzle. The sleeve is rotatably mounted on the upper surface of the top plate of the base. The upper end of a rotating shaft is connected to the sleeve. The rotating shaft, which is driven by a driving mechanism, is used to drive the sleeve to rotate. At least one set of mutually cooperating protrusions and grooves are provided between the inner wall of the sleeve into which the nozzle can be inserted and the outer surface of the nozzle. The upper surface of the base plate and the lower surface of the base are connected by at least three vertically arranged and spaced elastic members.

[0005] The following are further improvements to the above technical solution:

[0006] 1. In the above scheme, each of the two oppositely arranged sidewalls on the base is provided with a vertical plate. The lower end of the vertically arranged vertical plate is connected to the base plate. Each vertical plate is connected to the sidewall of the base by at least one set of slide rails extending in the vertical direction and a slider.

[0007] 2. In the above scheme, one end of each of the 4 to 8 elastic members is connected to the base plate, and the other end is connected to the lower surface of the base.

[0008] 3. In the above scheme, 4 to 8 of the elastic elements are evenly distributed on the upper surface of the base plate.

[0009] 4. In the above scheme, a sensing plate that rotates with the rotating shaft is mounted on the rotating shaft, and a counting sensor is provided on the outer side of the sensing plate. The counting sensor, which is configured in conjunction with the sensing plate, is used to obtain the number of revolutions the sleeve makes with the rotating shaft.

[0010] 5. In the above scheme, several grooves extending vertically are distributed circumferentially on the outer surface of the lower end of the nozzle, and several protrusions that cooperate with the grooves are distributed circumferentially on the inner wall of the upper end of the sleeve.

[0011] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0012] This utility model relates to an automatic nozzle replacement mechanism for a dispensing valve. A sleeve is rotatably mounted on the upper surface of a base plate. The upper end of a rotating shaft is connected to the sleeve, and the rotating shaft, which is connected to a drive mechanism, drives the sleeve to rotate. At least one set of mutually cooperating protrusions and grooves are provided between the inner wall of the sleeve into which the nozzle can be inserted and the outer surface of the nozzle. The upper surface of the base plate and the lower surface of the base are connected by at least three vertically arranged and spaced elastic members. The nozzle can be disassembled and installed by rotating the sleeve in both directions, and the base can be floated and supported by the elastic members. During nozzle disassembly, automatic alignment and insertion between the nozzle and the sleeve are achieved, improving the accuracy and efficiency of disassembly and assembly. Attached Figure Description

[0013] Appendix Figure 1 This is a schematic diagram of the structure of the dispensing valve in the automatic nozzle replacement mechanism of the dispensing valve of this utility model.

[0014] Appendix Figure 2 This is an exploded view of the automatic nozzle replacement mechanism of the dispensing valve of this utility model.

[0015] Appendix Figure 3 This is a cross-sectional view of the automatic nozzle replacement mechanism of the dispensing valve of this utility model.

[0016] Appendix Figure 4 For the appendix Figure 3 Enlarged view of point A in the cross-sectional diagram shown;

[0017] Appendix Figure 5 This is a partial structural schematic diagram of the automatic nozzle replacement mechanism of the dispensing valve of this utility model.

[0018] In the above attached diagrams: 100, Nozzle; 200, Adhesive Valve; 1, Top Plate; 2, Sleeve; 3, Rotating Shaft; 4, Drive Mechanism; 41, Motor; 42, Drive Pulley; 43, Synchronous Belt; 44, Synchronous Pulley; 51, Protrusion; 52, Groove; 61, Sensing Plate; 62, Counting Sensor; 7, Mounting Plate; 8, Bearing; 9, Base; 91, Bottom Plate; 92, Side Wall; 10, Bottom Base Plate; 11, Elastic Component; 12, Vertical Plate; 131, Slide Rail; 132, Slider. Detailed Implementation

[0019] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0020] Example 1: An automatic nozzle replacement mechanism for a dispensing valve, wherein the nozzle 100 is threadedly connected to the lower end of the dispensing valve 200, comprising: a base plate 10, a base 9 disposed above the base plate 10, and a sleeve 2 that cooperates with the nozzle 100. The sleeve 2 is rotatably mounted on the upper surface of the top plate 1 of the base 9. The upper end of a rotating shaft 3 is connected to the sleeve 2. The rotating shaft 3, which is driven by a driving mechanism 4, is used to drive the sleeve 2 to rotate. At least one set of mutually cooperating protrusions 51 and grooves 52 are provided between the inner wall of the sleeve 2 into which the nozzle 100 is embedded and the outer surface of the nozzle 100. The upper surface of the base plate 10 and the lower surface of the base 9 are connected by at least three vertically arranged and spaced elastic members 11.

[0021] Each of the two opposing sidewalls 92 on the base 9 is provided with a vertical plate 12. The lower end of the vertical plate 12 is connected to the base plate 10. Each vertical plate 12 is connected to the sidewall 92 of the base 9 by at least one set of slide rails 131 extending in the vertical direction and a slider 132. One end of each of the six elastic elements 11 is connected to the base plate 10 and the other end is connected to the lower surface of the base 9.

[0022] Several grooves 52 extending vertically are distributed circumferentially on the outer surface of the lower end of the nozzle 100, and several protrusions 51 that cooperate with the grooves 52 are distributed circumferentially on the inner wall of the upper end of the sleeve 2.

[0023] The aforementioned drive mechanism 4 further includes: a motor 41 mounted on the lower surface of the mounting plate 7, a drive pulley 42 connected to the output shaft of the motor 41 and located above the mounting plate 7, and a synchronous pulley 44 connected to the drive pulley 42 via a synchronous belt 43, wherein the synchronous pulley 44 is mounted on the rotating shaft 3.

[0024] Example 2: An automatic nozzle replacement mechanism for a dispensing valve, wherein the nozzle 100 is threadedly connected to the lower end of the dispensing valve 200, comprising: a base plate 10, a base 9 disposed above the base plate 10, and a sleeve 2 that cooperates with the nozzle 100. The sleeve 2 is rotatably mounted on the upper surface of the top plate 1 of the base 9. The upper end of a rotating shaft 3 is connected to the sleeve 2. The rotating shaft 3, which is driven by a driving mechanism 4, is used to drive the sleeve 2 to rotate. At least one set of mutually cooperating protrusions 51 and grooves 52 are provided between the inner wall of the sleeve 2 into which the nozzle 100 is embedded and the outer surface of the nozzle 100. The upper surface of the base plate 10 and the lower surface of the base 9 are connected by at least three vertically arranged and spaced elastic members 11.

[0025] The seven elastic elements 11 are evenly distributed on the upper surface of the base plate 10.

[0026] Several grooves 52 extending vertically are distributed circumferentially on the outer surface of the lower end of the nozzle 100, and several protrusions 51 that cooperate with the grooves 52 are distributed circumferentially on the inner wall of the upper end of the sleeve 2.

[0027] A mounting plate 7 is provided below the substrate 1, and the counting sensor 62 is mounted on the mounting plate 7; the rotating shaft 3 and the mounting plate 7, and the sleeve 2 and the substrate 1 are rotatably connected by at least one bearing 8.

[0028] When it is necessary to install the nozzle onto the glue valve: First, insert the nozzle to be installed into the sleeve, so that the protrusions and grooves on the nozzle and the sleeve interlock; then, move the glue valve without the nozzle installed to directly above the nozzle installed in the sleeve by manual or automated three-axis drive mechanism; then, drive the glue valve to gradually move down so that the area where the lower end of the glue valve is threadedly connected to the nozzle is gradually embedded into the nozzle. At the same time, drive the rotating shaft to rotate forward by the drive mechanism, thereby automatically installing the nozzle onto the glue valve through the rotational engagement between the threads;

[0029] When it is necessary to detach the nozzle from the glue valve: First, move the glue valve with the nozzle installed above the sleeve using a manual or automated three-axis drive mechanism; then, drive the glue valve downwards until the nozzle on the glue valve is close to the sleeve, and drive the rotating shaft to rotate in the opposite direction using the drive mechanism. When the protrusions and grooves on the nozzle and sleeve correspond one-to-one, the nozzle can be fully embedded into the sleeve as the glue valve continues to move downwards. When the protrusions and grooves on the nozzle and sleeve do not correspond, the nozzle moving downwards with the glue valve will apply a force to the base with the sleeve installed. The downward pressure squeezes the elastic element. As the rotating shaft rotates, the sleeve rotates to a position where the protrusion or groove on it corresponds to the nozzle that is still stationary. At this time, the base with the sleeve installed moves upward under the restoring force of the elastic element, causing the sleeve to move upward and interlock with the nozzle. When the nozzle on the glue valve is fully embedded in the sleeve, the glue valve is driven to move upward gradually, so that the area where the lower end of the glue valve is threadedly connected to the nozzle gradually decreases until the lower end of the glue valve completely leaves the nozzle remaining in the sleeve, thereby automatically detaching the nozzle from the glue valve.

[0030] The above disassembly and assembly processes can be used in combination. For example, the old nozzle that has been used for a period of time can be removed from the glue valve, and then the new nozzle can be installed on the glue valve to achieve automated nozzle replacement.

[0031] When using the above-mentioned automatic nozzle replacement mechanism for dispensing valves, the nozzle can be disassembled and installed by rotating the sleeve in both the forward and reverse directions. It can also achieve automatic alignment and insertion between the nozzle and the sleeve during the disassembly process by using the elastic element to float the base, thereby improving the accuracy and efficiency of disassembly and assembly.

[0032] The counting sensor involved in the technical solution was obtained through external purchase and falls within the scope of existing technology, so it will not be described in detail here.

[0033] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. An automatic nozzle replacement mechanism for a dispensing valve, wherein the nozzle (100) is threadedly connected to the lower end of the dispensing valve (200), characterized in that: include: The base plate (10), the base (9) disposed above the base plate (10), and the sleeve (2) that cooperates with the nozzle (100) are provided. The sleeve (2) is rotatably mounted on the upper surface of the top plate (1) of the base (9). The upper end of a rotating shaft (3) is connected to the sleeve (2). The rotating shaft (3) is connected to a driving mechanism (4) for driving the sleeve (2) to rotate. At least one set of mutually cooperating protrusions (51) and grooves (52) are provided between the inner wall of the sleeve (2) into which the nozzle (100) is embedded and the outer surface of the nozzle (100). The upper surface of the base plate (10) and the lower surface of the base (9) are connected by at least three vertically arranged and spaced elastic members (11).

2. The automatic nozzle replacement mechanism for the dispensing valve according to claim 1, characterized in that: On the base (9), there is a vertical plate (12) on the outer side of each of the two oppositely arranged sidewalls (92). The lower end of the vertically arranged vertical plate (12) is connected to the base plate (10). Each vertical plate (12) is connected to the sidewall (92) of the base (9) by at least one set of slide rails (131) extending in the vertical direction and a slider (132).

3. The automatic nozzle replacement mechanism for the dispensing valve according to claim 1, characterized in that: Each of the 4 to 8 elastic members (11) has one end connected to the base plate (10) and the other end connected to the lower surface of the base (9).

4. The automatic nozzle replacement mechanism for the dispensing valve according to claim 1, characterized in that: Four to eight elastic elements (11) are evenly distributed on the upper surface of the base plate (10).

5. The automatic nozzle changing mechanism for the dispensing valve according to any one of claims 1 to 4, characterized in that: A sensor plate (61) is mounted on the rotating shaft (3) and rotates with it. A counting sensor (62) is provided on the outside of the sensor plate (61). The counting sensor (62) is used to obtain the number of revolutions of the sleeve (2) with the rotating shaft (3).

6. The automatic nozzle changing mechanism for the dispensing valve according to any one of claims 1 to 4, characterized in that: Several grooves (52) extending vertically are distributed circumferentially on the outer surface of the lower end of the nozzle (100), and several protrusions (51) that cooperate with the grooves (52) are distributed circumferentially on the inner wall of the upper end of the sleeve (2).

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