Automatic replacement unit for dispensing valve

Abstract

The utility model discloses an automatic spare part changing unit of point gum valve, the nozzle is connected in the lower extreme of gum valve through screw thread, include: base plate and rotatable installation sleeve on the surface of base plate, the upper end of a rotating shaft is connected with sleeve, and the rotating shaft for driving sleeve rotation is connected with a drive mechanism transmission, can be embedded the inner wall of sleeve with the outside surface between nozzle and set up at least one group of mutually coordinated convex and recess, be connected with a torsion sensor between drive mechanism and rotating shaft, and this torsion sensor is used for inductive rotating shaft and brushes out torsion or torque value. The utility model discloses an automatic spare part changing unit of point gum valve can realize the dismounting and installation of nozzle, can also monitor the torsion or torque size of sleeve acting on nozzle, and accurate control sleeve rotation start -stop.

Description

Technical Field

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

[0002] Dispensing technology involves applying, potting, or dripping adhesives, oils, or other liquids onto a product to achieve insulation, fixation, and surface smoothing. With increasing automation, more and more people are willing to use machines to replace manual labor. However, in current technology, nozzle replacement of dispensing valves still relies on manual labor. Manual replacement is inefficient and cannot accurately measure the torque exerted by the sleeve on the nozzle, potentially damaging the nozzle due to excessive torque, thus reducing the efficiency of the dispensing process. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an automatic component changing unit for a dispensing valve. This automatic component changing unit can not only disassemble and install the nozzle, but also monitor the torque or torque force exerted by the sleeve on the nozzle, and precisely control the start and stop of the sleeve rotation.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an automatic component changing unit for a dispensing valve, wherein the nozzle is threadedly connected to the lower end of the dispensing 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 being connected to the sleeve, the rotating shaft being driven by a driving mechanism for driving the sleeve to rotate, at least one set of mutually cooperating protrusions and grooves being provided between the inner wall of the sleeve into which the nozzle can be embedded and the outer surface of the nozzle, and a torque sensor being connected between the driving mechanism and the rotating shaft, the torque sensor being 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 scheme, the driving mechanism is a motor installed on the lower surface of the mounting plate, and the torque sensor is installed between the lower end of the motor's output shaft and the rotating shaft.

[0007] 2. In the above scheme, 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.

[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, at least one tensioning wheel is rotatably mounted on the upper surface of the mounting plate and located on the outer side of the timing belt, which is in pressing contact with the outer surface of the timing belt.

[0011] 6. In the above scheme, the tensioning wheel is rotatably mounted on one end of a mounting base, the mounting base having a strip-shaped mounting hole extending in the direction perpendicular to the synchronous belt, and the mounting base being connected to the mounting plate by a screw passing through the strip-shaped mounting hole.

[0012] 7. In the above scheme, there are two tensioning pulleys, located on both sides of the synchronous belt.

[0013] 8. 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.

[0014] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0015] The automatic part-changing unit of the dispensing valve of this utility model has a rotating shaft connected to a sleeve at the upper end. 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 embedded and the outer surface of the nozzle. A torque sensor is connected between the drive mechanism and the rotating shaft. The torque sensor is used to sense the torque or torque value brushed by the rotating shaft. The nozzle can be disassembled and installed by rotating the sleeve in both directions. The torque sensor can also indirectly and in real time monitor the magnitude of the torque or torque exerted by the sleeve on the nozzle. The rotation of the sleeve can be precisely controlled according to the change of the torque or torque value, thereby improving the accuracy of nozzle installation and the efficiency of nozzle disassembly. Attached Figure Description

[0016] Appendix Figure 1 A schematic diagram of the machining valve in the automated nozzle replacement mechanism of this utility model;

[0017] Appendix Figure 2 This is a schematic diagram of the automatic component changing unit of the dispensing valve of this utility model;

[0018] Appendix Figure 3 This is a partial structural schematic diagram of the automatic component changing unit of the dispensing valve of this utility model;

[0019] Appendix Figure 4 This is a partial sectional view of the automatic component changing unit of the dispensing valve of this utility model;

[0020] Appendix Figure 5 This is a partial sectional view of the automatic component changing unit of the dispensing valve of this utility model;

[0021] Appendix Figure 6 This is a partial structural diagram of the automatic component changing unit of the dispensing valve of this utility model;

[0022] Appendix Figure 7 This is a partial structural diagram of the automatic component changing unit of the dispensing valve of this utility model.

[0023] 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; 5, protrusion; 6, groove; 7, mounting plate; 8, bearing; 9, torque sensor; 10, tension wheel; 11, mounting base; 111, strip mounting hole. Detailed Implementation

[0024] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0025] Example 1: An automatic component changing unit for a dispensing valve, wherein the nozzle 100 is threadedly connected to the lower end of the dispensing 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 being connected to the sleeve 2, the rotating shaft 3 being driven by a driving mechanism 4 for driving the sleeve 2 to rotate, at least one set of mutually cooperating protrusions 5 and grooves 6 being 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 driving mechanism 4 being connected to the rotating shaft 3, the torque sensor 9 being used to sense the torque or torque value brushed by the rotating shaft 3.

[0026] The aforementioned drive mechanism 4 is a motor mounted on the lower surface of the mounting plate 7, and the torque sensor 9 is mounted between the output shaft of the motor and the lower end of the rotating shaft 3.

[0027] Several grooves 6 extending vertically are distributed circumferentially on the outer surface of the lower end of the nozzle 100, and several protrusions 5 that cooperate with the grooves 6 are distributed circumferentially on the inner wall of the upper end of the sleeve 2.

[0028] The aforementioned rotating shaft 3 and mounting plate 7, and the sleeve 2 and base plate 1 are rotatably connected by at least one bearing 8.

[0029] Example 2: An automatic component changing unit for a dispensing valve, wherein the nozzle 100 is threadedly connected to the lower end of the dispensing 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 being connected to the sleeve 2, the rotating shaft 3 being driven by a driving mechanism 4 for driving the sleeve 2 to rotate, at least one set of mutually cooperating protrusions 5 and grooves 6 being 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 driving mechanism 4 being connected to the rotating shaft 3, the torque sensor 9 being used to sense the torque or torque value brushed by the rotating shaft 3.

[0030] 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.

[0031] The torque sensor 9 is connected between the output shaft of the motor 41 and the drive pulley 42; the motor 41 is mounted on the lower surface of the mounting plate 7 via a connecting bracket 45.

[0032] At least one tensioning wheel 10 is rotatably mounted on the upper surface of the mounting plate 7 and on the outer side of the timing belt 43, which is in pressing contact with the outer surface of the timing belt 43.

[0033] The tensioning wheel 10 is rotatably mounted on one end of a mounting base 11. The mounting base 11 has a strip-shaped mounting hole 111 extending in the direction perpendicular to the synchronous belt 43. The mounting base 11 is connected to the mounting plate 7 by a screw passing through the strip-shaped mounting hole 111. Two tensioning wheels 10 are provided, located on both sides of the synchronous belt 43 respectively.

[0034] The sleeve 2 and the rotating shaft 3 are both provided in twos. The drive pulley 42 of the drive mechanism 4 is connected to the two synchronous pulleys 44 mounted on the rotating shaft 3 via a synchronous belt 43.

[0035] 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;

[0036] 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;

[0037] 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.

[0038] Most importantly, during the above-mentioned disassembly and assembly of the nozzle:

[0039] First, set the torque threshold during disassembly and assembly based on the torque required when the threads between the nozzle and the glue valve are tightened together and the torque required to drive the nozzle to rotate when the threads are fully unscrewed (e.g., the minimum torque required when tightening is 0.5 N·m).

[0040] Next, the torque or torque force exerted by the sleeve on the nozzle is indirectly and in real time obtained through a torque sensor. When the torque force exerted by the sleeve on the nozzle reaches the set corresponding threshold, it indicates that the installation or removal of the nozzle is completed. The start and stop of the sleeve rotation are precisely controlled according to the change of torque or torque value, thereby improving the accuracy of nozzle installation and the efficiency of nozzle removal.

[0041] When using the above-mentioned automatic part changing unit of the dispensing valve, it can not only disassemble and install the nozzle by rotating the sleeve in the forward and reverse directions, but also indirectly and in real time monitor the torque or torque force exerted by the sleeve on the nozzle by the torque sensor, and accurately control the start and stop of the sleeve rotation according to the change of torque or torque value, thereby improving the accuracy of nozzle installation and the efficiency of nozzle disassembly.

[0042] The torque 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.

[0043] 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 exchange unit of a glue valve, a nozzle (100) of the glue valve being connected to a lower end of a glue valve (200) by a thread, characterized in that: The utility model relates to a nozzle rotating device, including: 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 with the sleeve (2), the rotating shaft (3) driven by a driving mechanism (4) is used for driving the sleeve (2) to rotate, at least one set of protrusions (5) and grooves (6) are arranged between the inner wall of the sleeve (2) and the outer surface of the nozzle (100), a torsion sensor (9) is connected between the driving mechanism (4) and the rotating shaft (3), and the torsion sensor (9) is used for sensing the torsion or torque value brushed by the rotating shaft (3).

2. The automatic exchange unit of the glue valve according to claim 1, wherein: The driving mechanism (4) is a motor mounted on the lower surface of the mounting plate (7), and the torsion sensor (9) is mounted between the output shaft of the motor and the lower end of the rotating shaft (3).

3. The automatic exchange unit of the glue valve according to claim 1, wherein: The lower side of the substrate (1) is provided with a mounting plate (7), and the driving mechanism (4) further comprises: a motor (41) mounted on the lower surface of the mounting plate (7), a driving pulley (42) connected with the output shaft of the motor (41) and located above the mounting plate (7), and a synchronous pulley (44) in driving connection with the driving pulley (42) through a synchronous belt (43), wherein the synchronous pulley (44) is mounted on the rotating shaft (3).

4. The automatic exchange unit of the glue valve according to claim 3, wherein: The torsion sensor (9) is connected between the output shaft of the motor (41) and the driving pulley (42).

5. The automatic exchange unit of the glue valve according to claim 3 or 4, characterized in that: The motor (41) is mounted on the lower surface of the mounting plate (7) through a connecting bracket (45).

6. The automatic exchange unit of the glue valve according to claim 3 or 4, characterized in that: The upper surface of the mounting plate (7) and the outer side of the synchronous belt (43) are rotatably provided with at least one tension pulley (10) in extrusion contact with the outer surface of the synchronous belt (43).

7. The automatic exchange unit of the glue valve according to claim 6, characterized in that: The tension pulley (10) is rotatably mounted on one end of a mounting seat (11), and the mounting seat (11) is provided with a strip-shaped mounting hole (111) extending in the direction perpendicular to the synchronous belt (43), and the mounting seat (11) is connected with the mounting plate (7) through screws penetrating through the strip-shaped mounting hole (111).

8. The automatic exchange unit of the glue valve according to claim 6, wherein: The tension pulley (10) is provided with two, respectively located on both sides of the synchronous belt (43).

9. The automatic exchange unit of the glue valve according to claim 3 or 4, characterized in that: The sleeve (2) and the rotating shaft (3) are provided with two, respectively, and the driving pulley (42) of the driving mechanism (4) is in driving connection with two synchronous pulleys (44) mounted on the rotating shaft (3) through a synchronous belt (43).

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