Three-channel type dispensing valve

Abstract

The utility model belongs to the technical field of dispensing valves, and particularly relates to a three-channel type dispensing valve which comprises a valve body, a shaft sleeve assembled in the valve body and a valve core rotating in the shaft sleeve, a glue solution inlet hole is formed in the side wall of the valve element, a glue solution outlet is formed in the bottom of the valve element, and the glue solution inlet hole and the glue solution outlet penetrate through the interior of the valve element; one cleaning pipeline connector and at least two glue inlet pipeline connectors are assembled on the side wall of the valve body, one Luer connector is assembled at the bottom of the valve body, and a glue dispensing needle is assembled on the Luer connector. According to the three-channel type glue dispensing valve in the technical scheme, conveying channels and glue discharging and cleaning channels of two different glue solutions are integrated in one glue dispensing valve, connection or disconnection of the glue solution inlet hole A and the different inlet connectors is achieved by controlling the rotation angle of the valve element, glue dispensing application and automatic glue discharging and cleaning of the two different glue solutions are achieved, and the three-channel type glue dispensing valve is simple in structure, convenient to operate and low in cost. The use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of glue dispensing valves, and in particular relates to a three-channel glue dispensing valve. Background Art

[0002] Pneumatic dispensing valve is a commonly used automatic dispensing mechanism. It is composed of three parts, cylinder, valve body and material cylinder, which are connected up and down. The cylinder and valve body are separated by advanced sealing materials to prevent glue from invading the cylinder. The material cylinder and cylinder are connected to the main body of the dispensing valve body, and the coaxiality with the cylinder is ensured. The solenoid valve drives the cylinder to move, thereby driving the center rod to move up and down to realize the opening and closing of the glue.

[0003] However, the pneumatic dispensing valve in the prior art has only one glue channel and cannot dispense two glues at the same time. To dispense two or more glues, two or more dispensing valves need to be configured with different dispensing paths, which increases the design cost. Utility Model Content

[0004] The utility model aims at solving the problems in the prior art and proposes the following technical solutions:

[0005] A three-channel dispensing valve comprises a valve body, a shaft sleeve assembled inside the valve body, and a valve core rotating in the shaft sleeve;

[0006] A glue inlet hole is provided on the side wall of the valve core, and a glue outlet is provided at the bottom of the valve core. The glue inlet hole and the glue outlet are connected to the interior of the valve core.

[0007] The side wall of the valve body is equipped with one cleaning pipeline joint and at least two glue inlet pipeline joints, the bottom of the valve body is equipped with one Luer joint, and the Luer joint is equipped with a glue dispensing needle, and the cleaning pipeline joint, the glue inlet pipeline joint and the Luer joint are all connected with the interior of the shaft sleeve;

[0008] When the glue inlet hole rotates to face any one of the one cleaning pipe joint and at least two glue inlet pipe joints, a conveying channel is formed between the corresponding joint, the valve core and the Luer joint.

[0009] As a preferred embodiment of the above technical solution, a countersunk hole B for accommodating the valve core is provided at the end of the sleeve, and a glue outlet hole B, a cleaning agent inlet hole B and a glue inlet hole B are provided on the sleeve;

[0010] The end of the valve body is provided with a countersunk hole C for accommodating the shaft sleeve, and the valve body is provided with a glue inlet hole C, a cleaning agent inlet hole C and a glue outlet hole C which are connected with the countersunk hole C;

[0011] The number and position of the glue inlet holes B and C match the glue inlet pipe joint, the number and position of the cleaning agent inlet holes B and C match the cleaning pipe joint, and the number and position of the glue outlet holes B and C match the Luer joint.

[0012] As a preferred embodiment of the above technical solution, a positioning hole B is provided on the shaft sleeve, and a stop threaded hole is provided on the valve body. When the shaft sleeve and the valve body are assembled, the stop threaded hole is threadedly matched with a bolt, and the end of the bolt is inserted into the interior of the positioning hole B;

[0013] The valve body is provided with a mounting hole and a positioning groove.

[0014] As a preferred embodiment of the above technical solution, it also includes a motor mounted on the upper end of the valve body;

[0015] One end of the valve core is axially extended to form a shaft, and the shaft is connected to the output end of the motor through a coupling.

[0016] As a preferred embodiment of the above technical solution, the upper end of the valve body is connected to a panel via a support, a positioning hole is provided at the middle of the panel, and a threaded hole is provided at the edge of the panel;

[0017] When the motor is assembled, the output end of the motor is inserted into the interior of the positioning hole, and the bottom of the motor is threadedly matched with the threaded hole through bolts.

[0018] As a preferred embodiment of the above technical solution, at least two annular grooves are formed on the circumferential surface of the valve core, and a sealing ring in close contact with the inner wall of the sleeve is installed in the annular groove.

[0019] The beneficial effects of the utility model are:

[0020] The three-channel dispensing valve in the present technical solution integrates the delivery channels and the glue discharge and cleaning channels of two different glue liquids into one dispensing valve. By controlling the rotation angle of the valve core, the glue liquid inlet hole A and different inlet joints are connected or disconnected, thereby realizing the dispensing application of two different glue liquids and automatic glue discharge and cleaning. It has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Shown is a schematic structural diagram of a three-channel dispensing valve in Example 1;

[0022] Figure 2 It shows Figure 1 Schematic diagram of the structure of AA;

[0023] Figure 3 It shows Figure 1 Schematic diagram of the structure of the medium BB;

[0024] Figure 4 The structure diagram of the valve core in the embodiment 1 is shown;

[0025] Figure 5 Shown is a schematic diagram of the structure of the shaft sleeve in Example 1;

[0026] Figure 6 What is shown is a schematic diagram of the structure of the valve body in Example 1.

[0027] Figure numerals: motor 1, coupling 2, valve core 3, shaft 31, annular groove 32, glue inlet hole A33, glue outlet hole A34, sealing ring 4, sleeve 5, countersunk hole B51, positioning hole B52, glue outlet hole B53, cleaning agent inlet hole B54, glue inlet hole B55, cleaning pipe joint 6, glue inlet pipe joint 7, valve body 8, panel 81, positioning hole C82, mounting threaded hole 83, countersunk hole C84, glue inlet hole C85, cleaning agent inlet hole C86, mounting hole 87, positioning groove 88, stop threaded hole 89, glue outlet hole C810, Luer connector 9, dispensing needle 10. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0029] Example 1

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a three-channel dispensing valve includes a valve body 8, a sleeve 5 assembled inside the valve body 8, and a valve core 3 that rotates in the sleeve 5; the valve core 3 and the sleeve 5 are separately arranged, so that the sleeve 5 can be selected from a special material according to the performance of the glue.

[0031] A glue inlet 33 is provided on the side wall of the valve core 3, and a glue outlet 34 is provided at the bottom of the valve core 3. The glue inlet 33 and the glue outlet 34 are connected to the interior of the valve core 3.

[0032] The side wall of the valve body 8 is equipped with one cleaning pipe joint 6 and at least two glue feed pipe joints 7. The bottom of the valve body 8 is equipped with one Luer joint 9. In this embodiment, the cleaning pipe joint 6 and the glue feed pipe joint 7 can use corresponding air pipe adapters or syringe adapters to achieve applications in different occasions. The Luer joint 9 is equipped with a glue dispensing needle 10. The Luer joint 9 can use a corresponding needle adapter. The glue dispensing needle 10 can use a corresponding glue dispensing needle according to different glue liquids and application sites. The cleaning pipe joint 6, the glue feed pipe joint 7 and the Luer joint 9 are all connected with the interior of the sleeve 5.

[0033] In the present embodiment, two glue inlet pipe joints 7 are provided, and the two glue inlet pipe joints 7 are provided at an interval of 180 degrees in the circumferential direction. In other embodiments, multiple glue types can be provided according to the needs of glue dispensing. One cleaning pipe joint 6 is provided, and the cleaning pipe joint 6 is located between the two glue inlet pipe joints 7 and is provided at an interval of 90 degrees in the circumferential direction with the glue inlet pipe joint 7.

[0034] Among them, when the glue inlet hole 33 rotates to be opposite to any one of the cleaning pipe joints 6, which is one, and the glue feed pipe joints 7, which are at least two, a conveying channel is formed between the corresponding joints, the valve core 3, and the Luer joint 9; specifically, when the glue inlet hole 33 is opposite to the glue feed pipe joint 7, a glue conveying channel is formed between the glue feed pipe joint 7, the valve core 3, and the Luer joint 9. Because there are two glue feed pipe joints 7, that is, there are two glue conveying channels, when the glue inlet hole 33 is opposite to the cleaning pipe joint 6, a glue discharge cleaning channel is formed between the cleaning pipe joint 6, the valve core 3, and the Luer joint 9.

[0035] A three-channel dispensing valve in the technical solution is connected to the left glue inlet pipe joint 7 with glue liquid A, the right glue inlet pipe joint 7 with glue liquid B, and the cleaning pipe joint 6 with cleaning agent. When glue liquid A needs to be dispensed, air pressure is introduced into glue liquid A, and the glue liquid delivery channel on the right is connected. When glue liquid A needs to be closed, the valve core 3 is rotated to close the glue liquid delivery channel on the right (the valve core 3 can be rotated 90° clockwise at this time to adjust to the position of the glue discharge cleaning channel), and the glue liquid is disconnected;

[0036] When glue dispensing of B glue is required, the glue discharge cleaning channel is first connected, and then the cleaning agent is sent into the channel by air pressure to discharge the residual A glue in the valve body 8. The glue discharge time can be set to realize automatic glue discharge; after the glue discharge is completed, the valve core 3 is rotated to connect the left glue liquid delivery channel, and then the air pressure is introduced to realize the glue dispensing of B glue. When the B glue needs to be closed, the valve core 3 is rotated to close the left glue liquid delivery channel (at this time, the valve core 3 can be rotated 90° counterclockwise to adjust to the position of the glue discharge cleaning channel), and the glue is disconnected; if the glue dispensing of A glue needs to be realized again, the above process is repeated. By setting the action program, the automatic switching of the two glue liquids for dispensing and cleaning and dispensing can be realized.

[0037] The three-channel dispensing valve in this technical solution integrates the delivery channels of two different glue liquids and the glue discharge and cleaning channels into one dispensing valve. By controlling the rotation angle of the valve core 3, the glue liquid inlet hole A33 and different inlet joints are connected or disconnected, and the dispensing application of two different glue liquids and automatic glue discharge and cleaning are realized. The structure is simple and easy to use.

[0038] The present invention is suitable for switching dispensing of two medium- and high-viscosity glues, and can realize dispensing application of two different glues on a set of dispensing actuators, thereby reducing design costs.

[0039] In order to realize the setting that the cleaning pipe joint 6, the glue feeding pipe joint 7, the Luer joint 9 and the inside of the sleeve 5 are connected, as shown in FIG. Figure 5 , Figure 6 As shown, the end of the sleeve 5 is provided with a countersunk hole B51 for accommodating the valve core 3, and the sleeve 5 is provided with a glue outlet hole B53, a cleaning agent inlet hole B54 and a glue inlet hole B55;

[0040] A countersunk hole C84 for accommodating the shaft sleeve 5 is formed at the end of the valve body 8, and a glue inlet hole C85, a cleaning agent inlet hole C86 and a glue outlet hole C810 which are connected with the countersunk hole C84 are formed on the valve body 8; the glue inlet hole C85 is threadedly matched with the glue inlet pipe joint 7, the cleaning agent inlet hole C86 is threadedly matched with the cleaning pipe joint 6, and the glue outlet hole C810 is threadedly matched with the Luer joint 9.

[0041] The number and position of the glue inlet holes B55 and the glue inlet holes C85 match the glue inlet pipe joint 7, the number and position of the cleaning agent inlet holes B54 and the cleaning agent inlet holes C86 match the cleaning pipe joint 6, and the number and position of the glue outlet holes B53 and the glue outlet hole C810 match the Luer joint 9.

[0042] When assembling the three-channel dispensing valve in the present technical solution, the sleeve 5 is placed into the countersunk hole C84, and the valve core 3 is placed into the countersunk hole B51, wherein the positions of the glue inlet hole B55 and the glue inlet hole C85 are relative to each other, so as to realize the connection between the glue inlet pipe joint 7 and the countersunk hole B51 in the sleeve 5, the positions of the cleaning agent inlet hole B54 and the cleaning agent inlet hole C86 are relative to each other, so as to realize the connection between the cleaning pipe joint 6 and the countersunk hole B51 in the sleeve 5, and the positions of the glue outlet hole B53 and the glue outlet hole C810 are relative to each other, so as to realize the connection between the Luer joint 9 and the countersunk hole B51 in the sleeve 5.

[0043] To achieve stable assembly of the sleeve 5 inside the valve body 8, Figure 2 , Figure 3 , Figure 5 , Figure 6 As shown, a positioning hole B52 is provided on the sleeve 5, and a stopping threaded hole 89 is provided on the valve body 8. When the sleeve 5 and the valve body 8 are assembled, the sleeve 5 is placed into the countersunk hole C84, wherein the glue inlet hole B55 and the glue inlet hole C85 are positioned relative to each other, and the cleaning agent inlet hole B54 and the cleaning agent inlet hole C86 are positioned relative to each other, and the stopping threaded hole 89 is threadedly matched with a bolt, and the end of the bolt is inserted into the positioning hole B52.

[0044] The valve body 8 is provided with a mounting hole 87 and a positioning groove 88 , and the mounting hole 87 and the positioning groove 88 are used for mounting the valve body 8 and an external dispensing actuator.

[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, it also includes a motor 1 mounted on the upper end of the valve body 8. The motor 1 can be a stepper motor or a servo motor to achieve control of different rotation angles;

[0046] One end of the valve core 3 extends axially to form a shaft 31, and the shaft 31 is connected to the output end of the motor 1 via a coupling 2; when the motor 1 is powered on and started, the valve core 3 is driven to rotate synchronously through the coupling 2 and the shaft 31, thereby realizing the requirement that the valve core 3 performs rotational motion inside the shaft sleeve 5. The setting of the motor 1 provides power for the rotation of the valve core 3.

[0047] To achieve stable assembly of the motor 1, Figure 1 , Figure 2 , Figure 3 , Figure 6 As shown, the upper end of the valve body 8 is connected to a panel 81 through a support, a positioning hole 82 is opened at the middle of the panel 81, and a threaded hole 83 is opened at the edge of the panel 81;

[0048] When assembling the motor 1 , the output end of the motor 1 is inserted into the interior of the positioning hole 82 , and the bottom of the motor 1 is threadedly matched with the threaded hole 83 through a bolt.

[0049] like Figure 2 , Figure 3 , Figure 4 As shown, at least two annular grooves 32 are provided on the circumferential surface of the valve core 3, and the glue inlet hole A33 is located between the annular grooves 32. A sealing ring 4 in close contact with the inner wall of the shaft sleeve 5 is installed in the annular groove 32; the setting of the sealing ring 4 prevents the glue from leaking between the valve core 3 and the shaft sleeve 5. At the same time, in order to achieve the sealing of the glue in the rotating surface of the shaft sleeve 5 and the valve core 3, the outer diameter of the valve core 3 is closely matched with the outer diameter of the countersunk hole B51 of the shaft sleeve 5 to ensure a small gap between their contact surfaces.

[0050] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A three-channel dispensing valve, characterized in that: It comprises a valve body (8), a shaft sleeve (5) assembled inside the valve body (8), and a valve core (3) that performs rotational movement inside the shaft sleeve (5); A glue inlet hole (33) is provided on the side wall of the valve core (3), and a glue outlet (34) is provided at the bottom of the valve core (3). The glue inlet hole (33) and the glue outlet (34) are connected to the interior of the valve core (3); The side wall of the valve body (8) is equipped with one cleaning pipe joint (6) and at least two glue feeding pipe joints (7); the bottom of the valve body (8) is equipped with one Luer joint (9), and a glue dispensing needle (10) is installed on the Luer joint (9); the cleaning pipe joint (6), the glue feeding pipe joint (7) and the Luer joint (9) are all connected to the inside of the shaft sleeve (5); When the glue inlet hole (33) rotates to face any one of the cleaning pipe joints (6) and at least two glue inlet pipe joints (7), a conveying channel is formed between the corresponding joint, the valve core (3) and the Luer joint (9).

2. A three-channel dispensing valve according to claim 1, characterized in that: The end of the shaft sleeve (5) is provided with a countersunk hole B (51) for accommodating the valve core (3), and the shaft sleeve (5) is provided with a glue outlet hole B (53), a cleaning agent inlet hole B (54) and a glue inlet hole B (55); The end of the valve body (8) is provided with a countersunk hole C (84) for accommodating the shaft sleeve (5), and the valve body (8) is provided with a glue inlet hole C (85) which is connected to the countersunk hole C (84), a cleaning agent inlet hole C (86) and a glue outlet hole C (810); The number and position of the glue inlet holes B (55) and the glue inlet holes C (85) match the glue inlet pipe joint (7), the number and position of the cleaning agent inlet holes B (54) and the cleaning agent inlet holes C (86) match the cleaning pipe joint (6), and the number and position of the glue outlet holes B (53) and the glue outlet holes C (810) match the Luer joint (9).

3. A three-channel dispensing valve according to claim 2, characterized in that: The shaft sleeve (5) is provided with a positioning hole B (52), and the valve body (8) is provided with a stop threaded hole (89). When the shaft sleeve (5) and the valve body (8) are assembled, the stop threaded hole (89) is threadedly matched with a bolt, and the end of the bolt is inserted into the interior of the positioning hole B (52); The valve body (8) is provided with a mounting hole (87) and a positioning groove (88).

4. A three-channel dispensing valve according to claim 1, characterized in that: It also includes a motor (1) mounted on the upper end of the valve body (8); One end of the valve core (3) extends axially to form a shaft (31), and the shaft (31) is connected to the output end of the motor (1) via a coupling (2).

5. A three-channel dispensing valve according to claim 4, characterized in that: The upper end of the valve body (8) is connected to a panel (81) via a support, a positioning hole (82) is provided at the middle of the panel (81), and a threaded hole (83) is provided at the edge of the panel (81); When the motor (1) is assembled, the output end of the motor (1) is inserted into the interior of the positioning hole (82), and the bottom of the motor (1) is threadedly matched with the threaded hole (83) through a bolt.

6. A three-channel dispensing valve according to claim 1, characterized in that: At least two annular grooves (32) are provided on the circumferential surface of the valve core (3), and a sealing ring (4) in close contact with the inner wall of the shaft sleeve (5) is installed in the annular groove (32).

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