Nozzle dismounting assembly

Abstract

A nozzle is connected to the lower end of a glue valve through threads, the nozzle dismounting assembly comprises a base plate and a sleeve rotationally installed on the upper surface of the base plate, the upper end of a rotating shaft is connected with the sleeve, and the rotating shaft in transmission connection with a driving mechanism is used for driving the sleeve to rotate. At least one set of protrusions and grooves matched with each other is arranged between the inner wall of a sleeve where a nozzle can be embedded and the outer side surface of the nozzle, the rotating shaft is sleeved with an induction piece rotating along with the rotating shaft, a counting sensor is arranged on the outer side of the induction piece, and the counting sensor matched with the induction piece is used for obtaining the number of turns of the sleeve rotating along with the rotating shaft. And a torsion sensor is connected between the driving mechanism and the rotating shaft and is used for sensing torsion or a torque value brushed by the rotating shaft. According to the nozzle dismounting and mounting assembly, dismounting and mounting of the nozzle can be achieved through forward and reverse rotation of the sleeve, starting and stopping of rotation of the sleeve are comprehensively judged and controlled, and the precision and efficiency of dismounting and mounting of the nozzle are improved.

Description

Technical Field

[0001] This utility model relates to the field of dispensing technology, and in particular to a nozzle assembly / disassembly component. Background Technology

[0002] Dispensing technology is commonly used in the production of products such as ships and clothing. With increasing automation, more and more people are willing to use machines to replace manual labor. Among them, the dispensing valve is a device used to apply, pot, or drip glue or other liquids. It is widely used in the optical, optoelectronic, and biochemical industries. However, in the current technology, the nozzle of the dispensing valve needs to be replaced manually at regular intervals. When replacing it manually, it is impossible to obtain the number of rotations of the sleeve or monitor the torque exerted by the sleeve on the nozzle in real time, which reduces the accuracy of nozzle disassembly and assembly. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a nozzle disassembly and assembly assembly, which can disassemble and install nozzles by rotating the sleeve in both directions, and comprehensively judge and control the start and stop of the sleeve rotation, thereby improving the accuracy and efficiency of nozzle disassembly and assembly.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a nozzle assembly, wherein the nozzle is threadedly connected to the lower end of a glue valve, comprising: a base plate and a sleeve rotatably mounted on the upper surface of the base plate; 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 embedded and the outer surface of the nozzle; a sensing plate that rotates with the rotating shaft is mounted on the rotating shaft; a counting sensor is provided on the outer side of the sensing plate; the counting sensor, which cooperates with the sensing plate, is used to obtain the number of rotations of the sleeve with the rotating shaft; a torque sensor is connected between the driving mechanism and the rotating shaft, and the torque sensor is used to sense the torque or torque value brushed by the rotating shaft.

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

[0006] 1. In the above solution, a mounting plate is provided below the substrate, and the driving mechanism further includes: a motor mounted on the lower surface of the mounting plate, a drive pulley connected to the output shaft of the motor and located above the mounting plate, and a synchronous pulley that is connected to the drive pulley via a synchronous belt, wherein the synchronous pulley is mounted on a rotating shaft.

[0007] 2. In the above scheme, the counting sensor is mounted on the mounting plate.

[0008] 3. In the above scheme, the torque sensor is connected between the output shaft of the motor and the drive pulley.

[0009] 4. In the above scheme, the motor is mounted on the lower surface of the mounting plate via a connecting bracket.

[0010] 5. In the above scheme, the rotating shaft and the mounting plate, and the sleeve and the base plate are rotatably connected by at least one bearing.

[0011] 6. In the above scheme, there are two sleeves and two rotating shafts. The drive pulley of the drive mechanism is connected to the two synchronous pulleys mounted on the rotating shaft by a synchronous belt.

[0012] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0013] This utility model relates to a nozzle assembly / disassembly assembly. The upper end of a rotating shaft is connected to a sleeve. The rotating shaft, which is connected to a drive mechanism, drives the sleeve to rotate. At least one set of 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. A sensing plate that rotates with the rotating shaft is mounted on the rotating shaft. A counting sensor is located on the outer side of the sensing plate. The counting sensor, which cooperates with the sensing plate, is used to obtain the number of rotations of the sleeve with the rotating shaft. A torque sensor is connected between the drive mechanism and the rotating shaft. This torque sensor is used to sense the torque or torque value emitted by the rotating shaft. The nozzle can be disassembled and installed by rotating the sleeve in both directions. The counting sensor obtains the number of rotations of the sleeve, and the torque sensor indirectly and in real-time monitors the magnitude of the torque or torque exerted by the sleeve on the nozzle. Based on the obtained changes in the number of rotations of the sleeve and the torque or torque value, the starting and stopping of the sleeve rotation is comprehensively determined and controlled, improving the accuracy and efficiency of nozzle assembly / disassembly. Attached Figure Description

[0014] Appendix Figure 1 A schematic diagram of the machining valve in the automated nozzle replacement mechanism of this utility model;

[0015] Appendix Figure 2 This is a schematic diagram of the nozzle assembly / disassembly assembly of this utility model;

[0016] Appendix Figure 3 This is a partial exploded view of the nozzle assembly / disassembly assembly of this utility model;

[0017] Appendix Figure 4 For the appendix Figure 3 A magnified view of point A in the partial exploded view shown;

[0018] Appendix Figure 5 This is a cross-sectional view of the nozzle assembly / disassembly component of this utility model.

[0019] In the above figures: 100, nozzle; 200, glue valve; 1, base plate; 2, sleeve; 3, rotating shaft; 4, drive mechanism; 41, motor; 42, drive pulley; 43, synchronous belt; 44, synchronous pulley; 45, connecting bracket; 51, protrusion; 52, groove; 61, sensing plate; 62, counting sensor; 7, mounting plate; 8, bearing; 9, torque sensor. Detailed Implementation

[0020] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0021] Example 1: A nozzle assembly, wherein the nozzle 100 is threadedly connected to the lower end of the glue valve 200, comprising: a base plate 1 and a sleeve 2 rotatably mounted on the upper surface of the base plate 1; 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 inserted and the outer surface of the nozzle 100; a sensing plate 61 that rotates with the rotating shaft 3 is fitted on the rotating shaft 3; a counting sensor 62 is provided on the outer side of the sensing plate 61; the counting sensor 62, which cooperates with the sensing plate 61, is used to obtain the number of rotations of the sleeve 2 with the rotating shaft 3; a torque sensor 9 is connected between the driving mechanism 4 and the rotating shaft 3; the torque sensor 9 is used to sense the torque or torque value brushed by the rotating shaft 3.

[0022] A mounting plate 7 is provided below the aforementioned substrate 1. The driving 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. The synchronous pulley 44 is mounted on the rotating shaft 3. The aforementioned torque sensor 9 is connected between the output shaft of the motor 41 and the drive pulley 42.

[0023] The motor 41 is mounted on the lower surface of the mounting plate 7 via a connecting bracket 45; several grooves 52 extending vertically are circumferentially distributed on the outer surface of the lower end of the nozzle 100, and several protrusions 51 that cooperate with the grooves 52 are circumferentially distributed on the inner wall of the upper end of the sleeve 2.

[0024] Example 2: A nozzle assembly, wherein the nozzle 100 is threadedly connected to the lower end of the glue valve 200, comprising: a base plate 1 and a sleeve 2 rotatably mounted on the upper surface of the base plate 1; 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 inserted and the outer surface of the nozzle 100; a sensing plate 61 that rotates with the rotating shaft 3 is fitted on the rotating shaft 3; a counting sensor 62 is provided on the outer side of the sensing plate 61; the counting sensor 62, which cooperates with the sensing plate 61, is used to obtain the number of rotations of the sleeve 2 with the rotating shaft 3; a torque sensor 9 is connected between the driving mechanism 4 and the rotating shaft 3; the torque sensor 9 is used to sense the torque or torque value brushed by the rotating shaft 3.

[0025] A mounting plate 7 is provided below the aforementioned substrate 1. The driving 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. The synchronous pulley 44 is mounted on the rotating shaft 3. The aforementioned counting sensor 62 is mounted on the mounting plate 7.

[0026] The aforementioned rotating shaft 3 and the mounting plate 7, as well as the sleeve 2 and the base plate 1, are rotatably connected by at least one bearing 8; two sleeves 2 and two rotating shafts 3 are provided, and the drive pulley 42 of the drive mechanism 4 is connected to two synchronous pulleys 44 mounted on the rotating shaft 3 respectively via a synchronous belt 43.

[0027] 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;

[0028] When it is necessary to detach the nozzle from the glue valve: First, the glue valve with the nozzle installed is moved above the sleeve by a manual or automated three-axis drive mechanism; then, the glue valve is driven to move downward so that the nozzle on the glue valve is embedded in the sleeve, and the protrusions and grooves on the nozzle and sleeve are interlocked; then, the drive mechanism drives the rotating shaft to rotate in the opposite direction, while at the same time, the glue valve is driven to move upward 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 is completely separated from the nozzle remaining in the sleeve, thereby automatically detaching the nozzle from the glue valve;

[0029] 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 first, and then the new nozzle can be installed on the glue valve to achieve automated replacement.

[0030] Most importantly, during the above-mentioned disassembly and assembly of the nozzle:

[0031] First, based on the number of thread turns between the nozzle and the glue valve, the torque required when the threads between the nozzle and the glue valve are tightened, and the torque required to drive the nozzle to rotate when the threads are fully unscrewed, the threshold values ​​for the number of rotation turns of the nozzle with the sleeve, the torque threshold value during nozzle installation (e.g., the minimum torque required when tightening is 0.5 N·m), and the torque threshold value during nozzle disassembly are set respectively.

[0032] Next, the number of rotations of the sleeve with the rotating shaft and the torque or torque applied by the sleeve to the nozzle are indirectly and in real time obtained through the counting sensor and torque sensor. When the number of rotations of the sleeve with the rotating shaft and the torque applied by the sleeve to the nozzle both reach the set threshold, it indicates that the installation or removal of the nozzle is complete. This avoids situations where the number of rotations reaches the threshold due to thread stripping or the torque reaches the threshold due to thread misalignment. Based on the changes in the number of rotations of the sleeve and the torque or torque value, the start and stop of the sleeve rotation are comprehensively judged and controlled, thereby improving the accuracy and efficiency of nozzle installation and removal.

[0033] When using the above-mentioned nozzle disassembly and assembly assembly, the nozzle can be disassembled and installed by rotating the sleeve in both directions. The number of rotations of the sleeve is obtained by a counting sensor, and the torque or torque force exerted on the nozzle by the sleeve is indirectly and in real time monitored by a torque sensor. Based on the changes in the number of rotations of the sleeve and the torque or torque value, the start and stop of the sleeve rotation are comprehensively determined and controlled, thereby improving the accuracy and efficiency of nozzle disassembly and assembly.

[0034] The counting sensor and torque sensor involved in the technical solution were all purchased externally and fall within the scope of existing technology, so they will not be described in detail here.

[0035] 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. A nozzle assembly, wherein the nozzle (100) is threadedly connected to the lower end of a glue valve (200), characterized in that: include: A substrate (1) and a sleeve (2) rotatably mounted on the upper surface of the substrate (1). 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). A sensing plate (61) that rotates with the rotating shaft (3) is mounted on the rotating shaft (3). A counting sensor (62) is provided on the outer side of the sensing plate (61). The counting sensor (62) that cooperates with the sensing plate (61) is used to obtain the number of rotations of the sleeve (2) with the rotating shaft (3). A torque sensor (9) is connected between the driving mechanism (4) and the rotating shaft (3). The torque sensor (9) is used to sense the torque or torque value brushed by the rotating shaft (3).

2. The nozzle disassembly and assembly assembly according to claim 1, characterized in that: A mounting plate (7) is provided below the substrate (1), and the driving 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). The synchronous pulley (44) is mounted on the rotating shaft (3).

3. The nozzle disassembly and assembly assembly according to claim 2, characterized in that: The counting sensor (62) is mounted on the mounting plate (7).

4. The nozzle disassembly and assembly assembly according to claim 2, characterized in that: The torque sensor (9) is connected between the output shaft of the motor (41) and the drive pulley (42).

5. The nozzle disassembly and assembly assembly according to claim 2 or 4, characterized in that: The motor (41) is mounted on the lower surface of the mounting plate (7) via a connecting bracket (45).

6. The nozzle disassembly and assembly assembly according to claim 2, characterized in that: The rotating shaft (3) and the mounting plate (7) are rotatably connected by at least one bearing (8), as are the sleeve (2) and the base plate (1).

7. The nozzle disassembly and assembly assembly according to claim 2, characterized in that: The sleeve (2) and the rotating shaft (3) are each provided with two. The drive pulley (42) of the drive mechanism (4) is connected to the two synchronous pulleys (44) installed on the rotating shaft (3) respectively through a synchronous belt (43).

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