Concentric screw valve

Abstract

The utility model discloses a concentric screw valve which comprises a valve body, a screw is arranged in the valve body, a driving device connected with the screw is arranged on the valve body, and the concentric screw valve is characterized in that the valve body is arranged on a valve support, the driving device comprises a servo motor and a speed reducer, the servo motor is connected with the speed reducer, and the speed reducer is arranged on the valve support. The speed reducer is connected with the screw rod, and the servo motor is provided with a motor connector; the driving device is fixedly provided with a rubber pipe connecting frame, the rubber pipe connecting frame is provided with a dispensing needle cylinder, the dispensing needle cylinder is connected with one end of a feeding pipeline, the other end of the feeding pipeline is connected with a feeding port of a valve body, and the feeding pipeline is fixed to the valve support. The disassembly and assembly convenience of the screw valve is improved through the application of the valve support, meanwhile, the electric control function is achieved, accurate glue control of the screw valve and stable design of a glue dispensing needle cylinder and a feeding pipeline can be achieved, and the glue feeding stability of a glue path is improved.

Description

Technical Field

[0001] This utility model belongs to the field of dispensing equipment technology and relates to a concentric screw valve. Background Technology

[0002] Concentric screw valves are precision fluid control devices primarily used for the accurate control of fluid delivery and distribution. However, their application in dispensing equipment presents several challenges: firstly, they cause inconvenience during assembly and disassembly; secondly, they cannot achieve seamless integration with other devices for precise dispensing control; and thirdly, existing concentric screw valves cannot flexibly adapt to the varying diameters of dispensing syringes of different capacities.

[0003] Therefore, it is necessary to improve existing technologies to overcome their shortcomings. Utility Model Content

[0004] The purpose of this invention is to provide a concentric screw valve that, through improvements, solves at least one problem in the prior art.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A concentric screw valve includes a valve body, a screw disposed within the valve body, a drive device connected to the screw disposed on the valve body, the valve body being mounted on a valve support, the drive device including a servo motor and a reducer, the servo motor being connected to the reducer, the reducer being connected to the screw, and a motor connector disposed on the servo motor; a hose connector is fixedly disposed on the drive device, a dispensing syringe is disposed on the hose connector, one end of the dispensing syringe is connected to a feeding pipeline, the other end of the feeding pipeline is connected to the inlet of the valve body, and the feeding pipeline is fixed on the valve support.

[0007] As a further improvement of one embodiment of the present invention, the valve holder is snap-fitted onto the fixed block.

[0008] As a further improvement of one embodiment of the present utility model, the fixing block has a pair of outwardly protruding "L"-shaped snap-fit ​​parts, the valve support is provided with a snap-fit ​​groove adapted to the snap-fit ​​parts, and the fixing block is provided with a plurality of bolt holes for bolting the snap-fit ​​parts.

[0009] As a further improvement of one embodiment of the present utility model, the valve support is composed of a valve support body and a valve support fixing block. The valve support body and the valve support fixing block are combined to form a contoured groove for placing the feeding pipeline and the valve body. The valve support fixing block is locked to the valve support body by bolts. The slot is provided on the valve support body.

[0010] As a further improvement of one embodiment of the present invention, the driving device further includes a housing, the bottom of which is fixed to the valve support, the servo motor and the reducer are both disposed inside the housing, the motor connector is disposed on the housing, and the hose connector is disposed on the housing.

[0011] As a further improvement of one embodiment of the present utility model, the hose connector is composed of a connecting body and a fastening component, the connecting body and the fastening component forming a buckle that is fastened to the outer shell, and the connecting body and the fastening component are locked together by an adjusting screw; the connecting body has a positioning hole for placing the dispensing syringe, and the connecting body is provided with an opening gap communicating with the positioning hole.

[0012] As a further improvement of one embodiment of the present invention, an auxiliary positioning sleeve that can be adapted to dispensing syringes of different sizes is provided in the positioning hole.

[0013] As a further improvement of one embodiment of the present invention, the connecting body has two positioning holes that are interconnected to form a large through hole. The maximum width of the large through hole is greater than the diameter of a single positioning hole but less than the sum of the diameters of the two positioning holes.

[0014] The above technical solution has the following advantages: the application of valve support improves the ease of disassembly and assembly of screw valve, while also having electronic control function, enabling precise glue control of screw valve; the stable design of dispensing syringe and supply pipeline improves the stability of glue dispensing on the glue line. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 A schematic diagram of the first state structure provided by this utility model.

[0018] Figure 2This is a schematic diagram of the rear view structure provided by this utility model.

[0019] Figure 3 This is a top view of the structure provided for this utility model.

[0020] Figure 4 This is a cross-sectional view along the AA direction in section 3.

[0021] Figure 5 This is a schematic diagram of the hose connector structure provided by this utility model.

[0022] Figure 6 A schematic diagram of the valve support structure provided by this utility model.

[0023] Figure 7 A schematic diagram of the fixing block structure provided by this utility model.

[0024] In the picture:

[0025] 1-Valve body;

[0026] 2-Screw;

[0027] 3-Drive device;

[0028] 31-Servo motor;

[0029] 32-Reducer;

[0030] 33 - Motor connector;

[0031] 34 - Outer shell;

[0032] 4-Hose connector;

[0033] 41-Connecting main body;

[0034] 42-Fastening parts;

[0035] 43 - Adjusting screw;

[0036] 44 - Positioning hole;

[0037] 45 - Opening gap;

[0038] 5-Dispensing syringe;

[0039] 6-Feeding pipeline;

[0040] 7-Valve support;

[0041] 71-Valve support body;

[0042] 72-Valve support fixing block;

[0043] 73-Card slot;

[0044] 8-Fixing block;

[0045] 81-Connecting part;

[0046] 82 - Bolt hole;

[0047] 9-Auxiliary positioning sleeve. Detailed Implementation

[0048] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0049] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0050] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model. Example

[0051] See Figures 1-7 As shown, a concentric screw valve includes a valve body 1 with a screw 2 housed within it for precise fluid control. The valve body 1 is securely mounted on a valve support 7 to ensure operational stability. The drive unit 3 plays a crucial power output role in the entire system and comprises a servo motor 31 and a reducer 32. The servo motor 31 features high-precision speed control and is connected to the reducer 32. The output of the reducer 32 is connected to the screw 2 via a coupling for power transmission, effectively reducing speed and increasing torque to meet the power requirements of the screw 2. The servo motor 31 is equipped with a motor connector 33 for convenient electrical connection and integration with other devices.

[0052] A hose connector 4 is fixedly installed on the drive unit 3. A dispensing syringe 5 is installed on the hose connector 4. One end of the dispensing syringe 5 is connected to the feeding pipeline 6. The other end of the feeding pipeline 6 is connected to the inlet of the valve body 1. The feeding pipeline 6 is fixed on the valve support 7 to ensure stable and smooth feeding.

[0053] In this embodiment, the valve support 7 is snapped onto the fixing block 8, enabling connection to other devices. This allows for quick removal of the valve support 7 from the fixing block 8, facilitating rapid assembly and disassembly of the screw valve. Specifically, the fixing block 8 features a pair of outwardly protruding, "L"-shaped snap-fit ​​parts 81, providing reliable clamping force. The valve support 7 has corresponding slots 73 that fit the snap-fit ​​parts 81, allowing for precise insertion and initial positioning during installation. The fixing block 8 also has several bolt holes 82 for further securing the snap-fit ​​parts 81 with bolts. Tightening the bolts through the bolt holes 82 ensures a tight fit between the snap-fit ​​parts 81 and the valve support 7, preventing loosening. This structure ensures stable connection of the valve support 7 to other devices via the fixing block 8, guaranteeing the normal operation of the concentric screw valve within the system.

[0054] In this embodiment, the drive device 3 also includes a housing 34. The bottom of the housing 34 can be securely mounted on the valve support 7 through various methods such as welding, riveting, or high-strength bolts, ensuring that it will not shake during operation. The servo motor 31 and the reducer 32 are arranged in an orderly manner inside the housing 34, effectively protecting the internal precision components and reducing interference from the external environment. The motor connector 33 is mounted on the housing 34 for easy connection with external electrical systems to achieve power transmission. The hose connector 4 is also set in the housing 34 for easy fixing of the dispensing syringe 5. Preferably, the housing 34 can be made of metal or high-strength engineering plastic.

[0055] In this embodiment, the valve support 7 adopts a split design, consisting of a valve support body 71 and a valve support fixing block 72. The valve support body 71 and the valve support fixing block 72 combine to form a contoured groove for placing the feed pipeline 6 and the valve body 1, providing them with stable placement space, ensuring accurate installation of each component, and reducing shaking and displacement. The valve support fixing block 72 is secured to the valve support body 71 with bolts, making installation and disassembly convenient, and facilitating maintenance and component replacement. The slot 73 is located on the valve support body 71 and cooperates with the snap-fit ​​part 81 of the fixing block 8 to achieve a stable connection between the valve support 7 and the fixing block 8, ensuring reliable docking of the concentric screw valve with other equipment.

[0056] Similarly, the tubing connector 4 adopts a split design, consisting of a connecting body 41 and a fastening element 42. The connecting body 41 and the fastening element 42 cooperate to form a buckle that securely fastens to the outer casing 34. The connecting body 41 and the fastening element 42 are locked together using an adjusting screw 43. By turning the adjusting screw 43, the tightness of the buckle can be flexibly adjusted to accommodate different sized casings. The connecting body 41 has a positioning hole 44 for placing the dispensing syringe, and an opening slit 45 communicating with the positioning hole 44, making the installation of the dispensing syringe 5 more convenient and accommodating slight dimensional changes in the dispensing syringe, ensuring the syringe remains stable during operation.

[0057] In this embodiment, various types of auxiliary positioning sleeves 9 can be placed inside the positioning hole 44. These auxiliary positioning sleeves 9 are specially designed according to the characteristics of different sizes of dispensing syringes 5, each adapting to a specific size of dispensing syringe 5, and can tightly fit the outer wall of the dispensing syringe 5, providing a stable fixing effect. Preferably, the material of the above-mentioned auxiliary positioning sleeves 9 can be rubber, silicone, or other materials with a certain degree of elasticity and friction to enhance the fixing effect. The position of the tubing connector 4 on the outer shell 34 can be flexibly adjusted, allowing different types of dispensing syringes 5 to accurately connect with one end of the supply pipeline, ensuring smooth supply and meeting the installation and debugging requirements of the supply system under different working conditions.

[0058] Furthermore, in this embodiment, there are two positioning holes 44 that are interconnected to form a large through hole. The two positioning holes 44 have the same diameter, and the maximum width of the large through hole is greater than the diameter of a single positioning hole but less than the sum of the diameters of the two positioning holes. While ensuring the compactness and stability of the structure, this design accommodates the application of two lengths of hose connectors 4, meeting diverse usage scenarios and installation requirements.

[0059] This invention significantly improves the ease of assembly and disassembly of the screw valve through the application of the valve support 7. The valve support body 71 and the valve support fixing block 72 are connected by bolts, facilitating disassembly and maintenance. The valve support 7, combined with the electronic control function of the drive device 3, allows the servo motor 31 to precisely control the speed of the screw 2, achieving accurate glue control of the screw valve and ensuring precise glue dispensing. The stable design of the dispensing syringe 5 and the supply line 6 is reflected in several aspects. The dispensing syringe 5 is secured to the glue tube connector 4 by the auxiliary positioning sleeve 9, while the supply line 6 is fixed to the valve support 7, ensuring glue line stability, improving glue dispensing stability, and meeting different production needs.

[0060] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0061] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0062] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0063] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A concentric screw valve, comprising a valve body, wherein a screw is disposed within the valve body, and a driving device connected to the screw is disposed on the valve body, characterized in that: The valve body is mounted on the valve support. The drive device includes a servo motor and a reducer. The servo motor is connected to the reducer, and the reducer is connected to a screw. The servo motor is equipped with a motor connector. A hose connection frame is fixedly mounted on the drive device. A dispensing syringe is mounted on the hose connection frame. One end of the dispensing syringe is connected to a feeding pipeline, and the other end of the feeding pipeline is connected to the inlet of the valve body. The feeding pipeline is fixed on the valve support.

2. The concentric screw valve according to claim 1, characterized in that: The valve holder is snap-fitted onto the fixed block.

3. The concentric screw valve according to claim 2, characterized in that: The fixing block has a pair of outwardly protruding "L"-shaped snap-fit ​​parts, the valve support is provided with a snap-fit ​​groove that matches the snap-fit ​​parts, and the fixing block is provided with a number of bolt holes for bolting the snap-fit ​​parts.

4. The concentric screw valve according to claim 3, characterized in that: The valve support consists of a valve support body and a valve support fixing block. The valve support body and the valve support fixing block are combined to form a contoured groove for placing the feeding pipeline and valve body. The valve support fixing block is fixed to the valve support body by bolts. The slot is provided on the valve support body.

5. The concentric screw valve according to claim 1, characterized in that: The drive device also includes a housing, the bottom of which is fixed to the valve support. The servo motor and the reducer are both located inside the housing. The motor connector is located on the housing, and the hose connector is located on the housing.

6. The concentric screw valve according to claim 5, characterized in that: The hose connector consists of a connecting body and a fastening component. The connecting body and the fastening component form a buckle that fastens onto the outer shell. The connecting body and the fastening component are locked together by an adjusting screw. The connecting body has a positioning hole for placing a dispensing syringe, and the connecting body is provided with an opening gap communicating with the positioning hole.

7. The concentric screw valve according to claim 6, characterized in that: An auxiliary positioning sleeve is provided inside the positioning hole to accommodate dispensing syringes of different sizes.

8. The concentric screw valve according to claim 7, characterized in that: The connecting body has two positioning holes that are interconnected to form a large through hole. The maximum width of the large through hole is greater than the diameter of a single positioning hole but less than the sum of the diameters of the two positioning holes.

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