Automatic putty spraying switch mechanism

Abstract

This invention discloses an automatic putty spraying switch mechanism, belonging to the field of construction robot technology. One end of the feed pipe is nested in the side of the connecting rod support, and the other end of the feed pipe is fitted with a sealing plug. An inner hole is formed at the center of the sealing plug. A ejector pin is embedded in the end of the feed pipe away from the sealing plug. A reset sleeve is nested at the front end of the ejector pin, and a sleeve pre-tightening component is nested and fixed at the front end of the reset sleeve. The reset sleeve is clamped and fixed to the surface of the ejector pin by the sleeve pre-tightening component. The rear end of the reset sleeve is embedded in the end of the switch actuation linkage. A sealing nut is provided on the other side of the switch actuation linkage. A drive linkage is rotatably connected to the other end of the switch actuation linkage, and a motor flange is rotatably connected to the other end of the drive linkage. The motor flange is driven to rotate by a servo motor. This product is used to replace conventional putty nozzles. By adjusting the motor rotation angle, the spray volume can be freely controlled, and instantaneous opening and closing of putty spraying with a duration of less than one second can be achieved.

Description

Technical Field

[0001] This invention relates to the field of construction robot technology, and in particular to an automatic putty spraying switch mechanism. Background Technology

[0002] With the development of technology and the increasing cost of labor, robots are increasingly replacing traditional manual labor. Traditional construction work at heights is cumbersome, inefficient, and poses safety hazards. Wall decoration in factories, residences, underground garages, etc., is generally done manually by applying putty. Workers need to stand on A-frame ladders or scaffolding to work at heights. At the same time, after completing a section, the scaffolding needs to be moved, which is inefficient and poses great safety hazards. Therefore, robots for spraying putty on building walls have emerged. However, in order to ensure the uniformity of putty spraying on the wall, it is often necessary to open and close the high-pressure putty spraying switch instantly. Most putty spraying robots in the current technology use conventional valves to control the opening and closing, which cannot achieve instantaneous opening and closing in a high-pressure environment for less than one second. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic putty spraying switch mechanism to solve the technical problem that putty spraying robots in the prior art cannot achieve instantaneous opening and closing in a high-pressure environment with a duration of less than one second.

[0004] This invention provides an automatic putty spraying switch mechanism for use at the nozzle of an automatic putty spraying robot. The switch mechanism includes a feed pipe and a connecting rod support. The feed pipe is connected to the nozzle of the automatic putty spraying robot. One end of the feed pipe is nested in a circular opening on the side of the connecting rod support. A sealing plug is embedded and fixed at the other end of the feed pipe. The sealing plug has an inner hole at its center, forming a passage with the feed pipe. A ejector pin is embedded at the end of the feed pipe away from the sealing plug, and a sealing element on the ejector pin seals the inner hole of the sealing plug. A reset sleeve is nested at the front end of the ejector pin, and a fixed... A pre-tightening bushing is provided, and the reset bushing is clamped and fixed to the surface of the ejector pin by the pre-tightening bushing. The linkage structure consisting of the reset bushing, the pre-tightening bushing, and the ejector pin is nested in the connecting rod support seat and can slide radially within the connecting rod support seat. The rear end of the reset bushing is embedded in the end of the switch actuation link. A sealing nut is provided on the other side of the switch actuation link, and the switch actuation link is clamped between the reset bushing and the sealing nut. The sealing nut nests and fixes the ejector pin to the end of the feed tube. The other end of the switch actuation link is rotatably connected to a drive link, and the other end of the drive link is rotatably connected to a motor flange. The motor flange is driven to rotate by a servo motor.

[0005] Furthermore, the tail end of the ejector pin is configured as a sealing element, and the front end of the sealing element has an arc-shaped cross-section. The arc-shaped sealing element can fit into the inner hole at the center of the sealing plug, which can prevent the seal from being incomplete and the putty from seeping out under high pressure.

[0006] Furthermore, a slot is provided on the side of the switch actuating link, and the slot is a blind slot, into which the reset sleeve is fitted. The reset sleeve can be engaged in the slot on the side of the switch actuating link, so that when the switch actuating link moves to the left, the linkage structure can be forced to move to the left as well.

[0007] Furthermore, a tension adjustment nut is threaded into one end of the connecting rod support seat located on the bushing preload. By adjusting the tension adjustment nut, the maximum feed rate of the linkage structure can be adjusted, thereby adjusting the maximum putty flow rate of the sealing element of the ejector pin and the inner hole at the center of the sealing plug.

[0008] Furthermore, a connecting rod pin is embedded at the connection between the switch actuating link and the connecting rod support, and the switch actuating link is rotatably connected to the connecting rod pin. The switch actuating link can rotate freely around the connecting rod pin.

[0009] Furthermore, both the connecting rod support and the servo motor are fixed to the intermediate support plate. The intermediate support plate allows the various structures of this product to be connected as a whole, resulting in a compact structure.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] To ensure uniformity of putty application on walls, it is often necessary to instantly open and close the high-pressure putty spraying switch. Existing putty spraying robots mostly use conventional valves for control, which cannot achieve instantaneous opening and closing in a high-pressure environment for less than one second. To address this issue, this product designs a putty spraying switch mechanism to replace conventional putty nozzles. The feed pipe is connected to the putty supply port. When the servo motor rotates clockwise, it drives the motor flange to rotate. Since the motor flange is connected to a drive linkage, which in turn is connected to an execution linkage, when the execution linkage moves backward, it drives the reset sleeve to move backward as well. The reset sleeve is connected to a sleeve pre-tightening component, which is connected to the ejector pin. This entire linkage mechanism allows the ejector pin to move to the left. The ejector pin is placed inside the feed pipe, and the feed pipe and the... The rod support is fixed, and a sealing plug is installed at the front end of the feed pipe, while a sealing nut is installed at the rear end. When the seal at the front end of the ejector pin separates from the sealing plug, the inner hole of the sealing plug forms a passage with the feed pipe, allowing putty to flow normally and enabling spraying. When the servo motor rotates counterclockwise, it drives the above-mentioned linkage mechanism to move in the opposite direction. The linkage mechanism enables the ejector pin to move to the right. When the front end of the ejector pin closes with the sealing plug, the passage between the inner hole of the sealing plug and the feed pipe is blocked, preventing putty from flowing normally and thus closing the spraying. By adjusting the rotation angle of the motor, the amount of putty sprayed can be freely controlled. At the same time, it can also achieve instantaneous opening and closing of putty spraying with a duration of less than one second. Moreover, the overall structure of this product is compact, stable, and reliable, and can adapt to the instantaneous opening and closing of the spraying pipeline under high-pressure putty conditions. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 This is a cross-sectional view of the present invention;

[0015] Figure 3 This is an exploded view of the present invention;

[0016] Figure 4 This is a schematic diagram of the switch actuation linkage in this invention.

[0017] Figure label:

[0018] 1. Connecting rod support seat; 2. Feed pipe; 3. Ejector pin; 31. Seal; 4. Sealing plug; 5. Sealing nut; 6. Reset bushing; 7. Bushing preload; 8. Tightening nut; 9. Connecting rod pin; 10. Switch actuator connecting rod; 10a. Slot; 11. Servo motor; 12. Intermediate support plate; 13. Drive connecting rod; 14. Motor flange. Detailed Implementation

[0019] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0021] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances. Specific implementation examples:

[0025] The following is combined with Figures 1 to 4As shown, this embodiment of the invention provides an automatic putty spraying switch mechanism. This switch mechanism is used at the nozzle of an automatic putty spraying robot. The switch mechanism includes a feed pipe 2 and a connecting rod support 1. The feed pipe 2 is connected to the nozzle of the automatic putty spraying robot. One end of the feed pipe 2 is nested in the circular opening of the connecting rod support 1. A sealing plug 4 is embedded and fixed at the other end of the feed pipe 2. An inner hole is opened at the center of the sealing plug 4, and the inner hole forms a passage with the feed pipe 2. A pin 3 is embedded at the end of the feed pipe 2 away from the sealing plug 4, and the sealing element on the pin 3 seals the inner hole of the sealing plug 4. In this embodiment, the tail end of the pin 3 is set as a sealing element 31, and the front end of the sealing element 31 has an arc-shaped cross-section. The arc-shaped sealing element 31 can fit with the inner hole at the center of the sealing plug 4, which can prevent the seal from being loose and the putty from seeping out under high pressure.

[0026] The front end of the ejector pin 3 is nested with a reset sleeve 6, and the front end of the reset sleeve 6 is nested and fixed with a sleeve preload 7. The reset sleeve 6 is clamped and fixed to the surface of the ejector pin 3 by the sleeve preload 7. The linkage structure formed by the reset sleeve 6, the sleeve preload 7, and the ejector pin 3 is nested in the connecting rod support 1 and can slide radially within the connecting rod support 1. The rear end of the reset sleeve 6 is embedded in the end of the switch actuating connecting rod 10. A sealing nut 5 is provided on the other side of the switch actuating connecting rod 10, and the switch actuating connecting rod 10 is clamped between the reset sleeve 6 and the sealing nut 5. In this embodiment, a slot 10a is provided on the side of the switch execution link 10, and the slot 10a is a blind slot. The reset bushing 6 is fitted into the slot 10a. The reset bushing 6 can be locked in the slot 10a on the side of the switch execution link 10, so that when the switch execution link 10 moves to the left, the linkage structure can be forced to move to the left as well. A connecting rod pin 9 is embedded at the connection between the switch execution link 10 and the connecting rod support 1, and the switch execution link 10 is rotatably connected to the connecting rod pin 9. The switch execution link 10 can rotate freely around the connecting rod pin 9. The other end of the switch execution link 10 is rotatably connected to the drive link 13, and the other end of the drive link 13 is rotatably connected to the motor flange 14. The motor flange 14 is driven to rotate by the servo motor 11.

[0027] To ensure uniformity of putty application on walls, it is often necessary to instantly open and close the high-pressure putty spraying switch. Existing putty spraying robots mostly use conventional valves for control, which cannot achieve instantaneous opening and closing in a high-pressure environment for less than one second. To address this issue, this product designs a putty spraying switch mechanism to replace conventional putty nozzles. The feed pipe 2 is connected to the putty supply port. When the servo motor 11 rotates clockwise, driving the motor flange 14 to rotate, a drive linkage 13 is connected to the motor flange 14, which in turn is connected to the execution linkage. When the execution linkage moves backward, it drives the reset sleeve 6 to move backward as well. The reset sleeve 6 is connected to a sleeve pre-tightening component 7, which is connected to the ejector pin 3. This linkage mechanism allows the ejector pin 3 to move to the left. The ejector pin 3 is placed inside the feed pipe 2. Fixed to the connecting rod support 1, the feed pipe 2 has a sealing plug 4 installed at the front end and a sealing nut 5 installed at the rear end. When the sealing element 31 at the front end of the ejector pin 3 separates from the sealing plug 4, the inner hole of the sealing plug 4 forms a passage with the feed pipe 2, allowing putty to flow normally and enabling spraying. When the servo motor 11 rotates counterclockwise, it can drive the above-mentioned linkage mechanism to move in the opposite direction. The linkage mechanism can make the ejector pin 3 move to the right. When the front end of the ejector pin 3 closes with the sealing plug 4, the passage between the inner hole of the sealing plug 4 and the feed pipe 2 is blocked, and the putty cannot flow normally, thus achieving the shutdown of spraying. By adjusting the rotation angle of the motor, the amount of spraying can be freely controlled. At the same time, it can also realize the instantaneous opening and closing of putty spraying with a duration of less than one second. Moreover, the overall structure of this product is compact, stable and reliable, and can adapt to the instantaneous opening and closing of the spraying pipeline under high pressure environment of putty.

[0028] In another embodiment, the connecting rod support 1 is threaded with a tension adjustment nut 8 at one end of the bushing preload 7. By adjusting the tension adjustment nut 8, the maximum feed of the linkage structure can be adjusted, thereby adjusting the maximum putty flow of the sealing member 31 of the ejector pin 3 and the inner hole at the center of the sealing plug 4.

[0029] In this embodiment, both the connecting rod support 1 and the servo motor 11 are fixed on the intermediate support plate 12. The intermediate support plate 12 enables the various structures of this product to be connected as a whole, resulting in a compact structure.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic putty spraying switch mechanism, the switch mechanism being used at the nozzle of an automatic putty spraying robot, the switch mechanism comprising a feed pipe (2) and a connecting rod support (1), the feed pipe (2) being connected to the nozzle of the automatic putty spraying robot, characterized in that: One end of the feed tube (2) is nested in the circular opening of the connecting rod support (1), and the other end of the feed tube (2) is fitted with a sealing plug (4). The sealing plug (4) has an inner hole at its center, and the inner hole forms a passage with the feed tube (2). The end of the feed tube (2) away from the sealing plug (4) is fitted with a push pin (3), and the sealing element on the push pin (3) seals the inner hole of the sealing plug (4). The front end of the push pin (3) is nested with a reset bushing (6), and the front end of the reset bushing (6) is nested with a bushing preload (7). The reset bushing (6) is clamped and fixed to the surface of the push pin (3) by the bushing preload (7). The reset bushing (6), the bushing preload (7) and the push pin (3) are all connected. The linkage structure formed by the needle (3) is nested in the connecting rod support (1) and can slide radially in the connecting rod support (1). The rear end of the reset bushing (6) is embedded in the end of the switch execution connecting rod (10). A sealing nut (5) is provided on the other side of the switch execution connecting rod (10). The switch execution connecting rod (10) is clamped between the reset bushing (6) and the sealing nut (5). The sealing nut (5) nests and fixes the ejector pin (3) to the end of the feed tube (2). The other end of the switch execution connecting rod (10) is rotatably connected to the drive connecting rod (13). The other end of the drive connecting rod (13) is rotatably connected to the motor flange (14). The motor flange (14) is driven to rotate by the servo motor (11).

2. The automatic putty spraying switch mechanism according to claim 1, characterized in that: The tail end of the ejector pin (3) is set as a sealing element (31), and the front end of the sealing element (31) has an arc-shaped cross section.

3. The automatic putty spraying switch mechanism according to claim 1, characterized in that: The side of the switch actuator (10) is provided with a slot (10a), and the slot (10a) is a blind slot. The reset bushing (6) is fitted into the slot (10a).

4. The automatic putty spraying switch mechanism according to claim 1, characterized in that: The connecting rod support (1) is threaded with a tension adjustment nut (8) at one end of the bushing preload (7).

5. The automatic putty spraying switch mechanism according to claim 1, characterized in that: A connecting rod pin (9) is embedded at the connection between the switch actuator (10) and the connecting rod support (1), and the switch actuator (10) is rotatably connected to the connecting rod pin (9).

6. The automatic putty spraying switch mechanism according to claim 1, characterized in that: Both the connecting rod support (1) and the servo motor (11) are fixed on the intermediate support plate (12).

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