Mass flow controller
By designing a mass flow controller with an external protective structure and a multi-cavity shunt, the problems of vulnerability and high cost of existing equipment are solved, achieving higher accuracy and reduced costs.
Patent Information
- Application Number
- CN202421923383.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-08-09
AI Technical Summary
The existing mass flow controller lacks an external structure and is prone to collision with metal scraps, resulting in damage and reduced accuracy. At the same time, different media require separate controllers, resulting in excessive equipment costs.
A mass flow controller including a housing, a valve seat, an explosion-proof housing and a shunt tube is designed to provide external protection through a combination of the housing and an explosion-proof housing, and to achieve shared delivery of different media through a multi-cavity design of the shunt tube.
It effectively prevents the collision between the mass flow controller and metal scraps, ensures the accuracy and life of the equipment, and reduces the equipment cost through shared conveying pipelines.
Smart Images
Figure CN222894863U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screw processing, in particular to a mass flow controller. Background Art
[0002] The mass flow controller is a precision device used to accurately measure and control the mass flow of gas or liquid. It has the characteristics of high accuracy and good repeatability and is widely used in the field of mechanical processing.
[0003] At present, in the processing of screws, such as drilling and turning, coolants are needed to reduce the temperature and ensure the stability and optimization of the cooling effect, thereby improving the processing quality and the service life of the tool. Some screw production processes require lubricants to reduce friction and wear. The control of the above two flow rates requires the use of mass flow controllers to meet the needs. In addition, in order to ensure the timely addition of coolants and lubricants during processing, the mass flow controller is generally installed at the edge of the processing area. At the same time, it is necessary to manually add the medium frequently. The existing mass flow controller is generally a combination structure in which the controller and the valve body are installed on a hollow tube. There is a lack of external protective structure. During the processing of the screws, collisions with metal scraps cut or drilled out may occur, which may easily cause damage to the mass flow controller and a decrease in control accuracy. Secondly, traditional mass flow controllers are generally installed on only one conveying pipeline. The transportation of different media requires separate mass flow controllers and conveying pipelines, which results in excessively high equipment costs. Therefore, the present application provides a mass flow controller to meet the needs. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a mass flow controller to solve the problem that the existing mass flow controller lacks an external structure, is prone to collision with waste chips, causes damage and reduces accuracy, and at the same time, the medium is added more frequently, and different existing media need to use separate mass flow controllers, resulting in the problem of excessively high equipment costs.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:
[0006] A mass flow controller comprises a first shell, a valve seat is butt-jointedly mounted at the front end of the first shell, a second shell is embedded and mounted on the inner side of the upper end of the first shell, an explosion-proof shell is threadedly mounted on the middle part of the upper end of the valve seat, a connecting pipe is clamped and mounted on the middle part of the rear end of the first shell, a shunt pipe is threadedly mounted on the rear end of the connecting pipe, a filter is threadedly mounted on the lower end of the shunt pipe, a rectifier assembly is butt-jointedly mounted on the upper end of the shunt pipe, an air inlet is provided in the middle part of the rear end of the shunt pipe, a hollow tube is embedded and mounted in the middle part of the inner side of the first shell, a controller body is clamped and mounted inside the second shell, a regulating valve is provided on the inner side of the upper end of the valve seat, and a medium outlet is provided at the front end of the valve seat.
[0007] Optionally, the first shell includes a left shell, a right shell, a semicircular groove and an embedding groove, the right side of the left shell is spliced and installed with the right shell, a semicircular groove is opened on the inner side of the middle part of the left end of the left shell, and an embedding groove is opened in the middle part above the semicircular groove.
[0008] Optionally, the second shell includes a front shell, a rear shell, an external button and an observation window, the rear side of the front shell is spliced and installed with the rear shell, an external button is provided above the front end of the front shell, and an observation window is provided below the external button.
[0009] Optionally, the rectifier assembly includes a placement plate, a servo motor, a placement bucket, a discharge plate and a connecting tray, a servo motor is provided in the middle of the upper end of the placement plate, a placement bucket is provided on the outer side of the servo motor, a discharge plate is provided at the lower end of the placement plate, and a connecting tray is threadedly installed at the lower end of the discharge plate.
[0010] Optionally, the first shell and the valve seat are reinforced by bolts on both sides, and four bolts are symmetrically distributed on each side. A medium pipeline is opened inside the valve seat, and the valve seat and the regulating valve are in an integrated structure.
[0011] Optionally, reinforcing ribs are distributed in a ring shape on the outer end of the explosion-proof shell, and the reinforcing ribs are welded and fixed to the explosion-proof shell, a line pipe is connected between the explosion-proof shell and the second shell, a baffle is welded to the inside of the shunt tube, and the baffle separates the inner side of the shunt tube into three cavities, and the cavities are distributed as an upper cavity and two lower cavities.
[0012] Optionally, the lower end of the controller body extends to the interior of the hollow tube, and the regulating valve, the hollow tube and the connecting tube are interconnected.
[0013] Optionally, the left shell and the right shell are exactly the same size, and semicircular grooves are provided on the relative inner sides of the left shell and the right shell, the inner diameter of the semicircular groove is equal to the outer diameter of the hollow tube, and the embedded groove is adapted to the size of the lower end structure of the second shell.
[0014] Optionally, slots are provided on the inner side of the rear end of the front shell and the inner side of the front end of the rear shell, and the size and diameter of the slots match the size of the controller body, and the installation angle of the observation window is parallel to the position of the display screen of the controller body.
[0015] Optionally, there are four symmetrically distributed placement buckets, each of which is provided with an inclined tube at its lower end, the transmission end of the servo motor extends to the inner side of the middle of the unloading tray and is reinforced by bolts, the unloading tray is composed of an inner ring structure and an outer ring structure, a movable groove is provided on the inner side of the outer ring structure, and a unloading stopper is provided at the outer end of the inner ring structure.
[0016] Compared with the prior art, the utility model has at least the following beneficial effects:
[0017] In the above scheme, the hollow tube can be clamped and installed on the inner side through the provision of the left shell and the right shell, so that the outer wall of the hollow tube and the left and right semicircular grooves fit together for reinforcement. At the same time, the controller body can also be installed on the inner side for fixation through the front shell and the rear shell embedded and connected with the left shell and the right shell. After that, the left shell and the right shell are docked and installed with the front shell and the rear shell, and they are tightened and reinforced with through bolts to form an overall external protection. In combination with the protection of the regulating valve by the valve seat and the explosion-proof casing, the mass flow controller will not collide with the cut chips during the processing, thereby ensuring the accuracy and life of the equipment.
[0018] Through the three cavity design inside the shunt pipe, when the first medium is transported, the first medium is injected into the shunt pipe through the air inlet and transported from the left cavity at the bottom inside. When transported into the right cavity at the bottom, the cooling medium will first enter the filter to filter impurities, and then enter the connecting pipe from the right cavity at the bottom for transportation. When the second medium is transported, the upper cavity inside the shunt pipe can be used, so that one transport pipeline and the same mass flow controller can be used to transport different media, thereby reducing equipment cost expenditure.
[0019] Through the set placement bucket, the material tank that needs to be used can be installed, and then the placement bucket is inserted into the placement tray. When it is needed, the servo motor is turned on to drive the discharge tray to rotate, so that the inner ring structure and the outer ring structure of the discharge tray are misaligned, so that the discharge block at the outer end of the inner ring structure is moved away from the outlet below the placement bucket, allowing the medium stored inside to flow out into the connecting tray, and then input it into the mass flow controller through the shunt pipe for flow control, thereby reducing the frequency of medium addition and achieving the continuity of material medium transportation required for production. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the present invention.
[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;
[0023] Figure 3 This is a schematic diagram of the three-dimensional separation structure of the rectifier assembly of the utility model;
[0024] Figure 4 This is a schematic diagram of the three-dimensional separation structure of the first shell and the second shell of the utility model;
[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the controller body of the utility model;
[0026] Figure 6 It is a schematic diagram of the three-dimensional installation structure of the valve seat, explosion-proof housing and regulating valve of the utility model.
[0027] [reference numerals]
[0028] 1. First shell; 2. Valve seat; 3. Second shell; 4. Explosion-proof shell; 5. Connecting pipe; 6. Diverter pipe; 7. Filter; 8. Rectification assembly; 9. Air inlet; 10. Hollow tube; 11. Controller body; 12. Regulating valve; 13. Medium outlet; 101. Left shell; 102. Right shell; 103. Semicircular groove; 104. Embedded groove; 301. Front shell; 302. Rear shell; 303. External button; 304. Observation window; 801. Placement tray; 802. Servo motor; 803. Placement bucket; 804. Discharge tray; 805. Connecting tray.
[0029] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION
[0030] The following is a detailed description of a mass flow controller provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.
[0031] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).
[0032] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.
[0033] It is to be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers.
[0034] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.
[0035] like Figures 1 to 6As shown, an embodiment of the utility model provides a mass flow controller, including a first shell 1, the first shell 1 and the valve seat 2 are reinforced by bolts on both sides, and four bolts are symmetrically distributed on each side, the front end of the first shell 1 is butt-jointed with the valve seat 2, the inside of the valve seat 2 is provided with a medium pipeline, and the valve seat 2 and the regulating valve 12 are in an integrated structure, the inner side of the upper end of the first shell 1 is embedded with a second shell 3, the middle part of the upper end of the valve seat 2 is threadedly installed with an explosion-proof shell 4, the outer end of the explosion-proof shell 4 is annularly distributed with reinforcing ribs, and the reinforcing ribs are welded and fixed to the explosion-proof shell 4, and a line pipe is connected between the explosion-proof shell 4 and the second shell 3, and a connecting pipe 5 is clamped and installed in the middle part of the rear end of the first shell 1, and the connection A shunt pipe 6 is threadedly installed at the rear end of the pipe 5, and a baffle is welded inside the shunt pipe 6 to seal it. The baffle separates the inner side of the shunt pipe 6 into three cavities, and the cavities are distributed as an upper cavity and two lower cavities. A filter 7 is threadedly installed at the lower end of the shunt pipe 6, and a rectifier assembly 8 is connected to the upper end of the shunt pipe 6. An air inlet 9 is opened in the middle of the rear end of the shunt pipe 6. A hollow pipe 10 is embedded and installed in the middle of the inner side of the first shell 1. A controller body 11 is clamped and installed inside the second shell 3. The lower end of the controller body 11 extends to the inside of the hollow pipe 10. A regulating valve 12 is provided on the inner side of the upper end of the valve seat 2. The regulating valve 12 is connected to the hollow pipe 10 and the connecting pipe 5. A medium outlet 13 is opened at the front end of the valve seat 2.
[0036] The first shell 1 comprises a left shell 101, a right shell 102, a semicircular groove 103 and an embedding groove 104. The right shell 102 is spliced and installed on the right side of the left shell 101. The left shell 101 and the right shell 102 are exactly the same in size. The left shell 101 and the right shell 102 are both provided with semicircular grooves 103 on the opposite inner sides. A semicircular groove 103 is provided on the inner side of the middle part of the left end of the left shell 101. The inner diameter of the semicircular groove 103 is equal to the outer diameter of the hollow tube 10. An embedding groove 104 is provided in the middle part above the semicircular groove 103. The embedding groove 104 is connected to the second shell 104. 3 is adapted to the size of the lower end structure of the controller body 11; the second shell 3 includes a front shell 301, a rear shell 302, an external button 303 and an observation window 304. The rear side of the front shell 301 is spliced and installed with the rear shell 302. The inner side of the rear end of the front shell 301 and the inner side of the front end of the rear shell 302 are both provided with slots, and the size and diameter of the slots are consistent with the size of the controller body 11. The upper part of the front end of the front shell 301 is provided with an external button 303, and the lower part of the external button 303 is provided with an observation window 304. The installation angle of the observation window 304 is parallel to the position of the display screen of the controller body 11.
[0037] By setting the left shell 101 and the right shell 102, the hollow tube 10 can be clamped and installed on the inner side, so that the outer wall of the hollow tube 10 and the left and right semicircular grooves 103 fit together for reinforcement. At the same time, the controller body 11 can also be installed on the inner side for fixation by the front shell 301 and the rear shell 302 embedded and connected with the left shell 101 and the right shell 102. Then, the left shell 101 and the right shell 102 are docked and installed with the front shell 301 and the rear shell 302, and tightened and reinforced with through bolts to form an overall external protection. In combination with the protection of the regulating valve 12 by the valve seat 2 and the explosion-proof shell 4, the mass flow controller will not collide with the cut waste chips during the processing, thereby ensuring the use accuracy and life of the equipment.
[0038] Through the assembly design of the left shell 101 and the right shell 102 and the front shell 301 and the rear shell 302, when the internal maintenance is required later, the disassembly is more convenient, saving time and labor.
[0039] Through the three cavity design inside the shunt tube 6, when the first medium is transported, the first medium is injected into the shunt tube 6 through the air inlet 9 and transported from the lower left cavity inside. When transported into the lower right cavity, the cooling medium will first enter the filter 7 to filter the impurities, and then enter the connecting tube 5 from the lower right cavity for transportation. When the second medium is transported, the upper cavity inside the shunt tube 6 can be used, so that one transport pipeline and the same mass flow controller can be used to transport different media, thereby reducing the equipment cost expenditure.
[0040] like Figures 1 to 3 As shown, the rectifier assembly 8 includes a placement plate 801, a servo motor 802, a placement bucket 803, a discharge plate 804 and a connecting tray 805. A servo motor 802 is provided in the middle of the upper end of the placement plate 801. The driving end of the servo motor 802 extends to the inner side of the middle of the discharge plate 804 and is reinforced by bolts. A placement bucket 803 is provided on the outer side of the servo motor 802. There are four placement buckets 803 symmetrically distributed. The lower ends of the placement buckets 803 are all provided with inclined tubes. The lower end of the placement plate 801 is provided with a discharge plate 804. The discharge plate 804 is composed of an inner ring structure and an outer ring structure. A movable groove is provided on the inner side of the outer ring structure. A discharge block is provided at the outer end of the inner ring structure. The lower end of the discharge plate 804 is threadedly installed with a connecting tray 805. The lower end of the connecting tray 805 is connected to the upper end of the shunt pipe 6.
[0041] Through the placement bucket 803, the material tank that needs to be used can be installed, and then the placement bucket 803 is inserted into the placement tray 801. When it is needed, the servo motor 802 is turned on to drive the unloading tray 804 to rotate, so that the inner ring structure and the outer ring structure of the unloading tray 804 are misaligned, so that the unloading block at the outer end of the inner ring structure is moved away from the outlet below the placement bucket 803, allowing the medium stored inside to flow out into the connecting tray 805, and then input it into the mass flow controller through the diverter pipe 6 for flow control, thereby reducing the frequency of medium addition and achieving the continuity of material medium transportation required for production.
[0042] The working principle of the technical solution provided by the utility model is as follows: the mass flow controller can clamp the hollow tube 10 and install it on the inside through the left shell 101 and the right shell 102, so that the outer wall of the hollow tube 10 and the left and right semicircular grooves 103 fit together for reinforcement. At the same time, the controller body 11 can also be installed on the inside for fixing through the front shell 301 and the rear shell 302 embedded and connected with the left shell 101 and the right shell 102. After that, the left shell 101 and the right shell 102 are docked and installed with the front shell 301 and the rear shell 302, and tightened and reinforced with through bolts to form an integral external protection, and in conjunction with the valve seat 2 and the explosion-proof shell 4 The protection of the regulating valve 12 prevents the mass flow controller from colliding with the cut chips during the processing, thereby ensuring the accuracy and life of the equipment; secondly, through the three cavity design inside the shunt tube 6, when the first medium is transported, the first medium is injected into the shunt tube 6 through the air inlet 9, and transported from the left cavity at the bottom inside. When transported into the right cavity below, the cooling medium will first enter the filter 7 to filter the impurities, and then enter the connecting tube 5 from the right cavity below for transportation. When transporting the second medium, the upper cavity inside the shunt tube 6 can be used to realize the transportation of different media using one conveying pipeline and the same mass flow controller, thereby reducing the equipment cost expenditure.
[0043] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.
[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A mass flow controller, characterized in that: It includes a first shell, a valve seat is butt-jointedly installed at the front end of the first shell, a second shell is embedded and installed on the inner side of the upper end of the first shell, an explosion-proof shell is threadedly installed on the middle part of the upper end of the valve seat, a connecting pipe is clamped and installed on the middle part of the rear end of the first shell, a shunt pipe is threadedly installed on the rear end of the connecting pipe, a filter is threadedly installed on the lower end of the shunt pipe, a rectifier component is butt-jointedly connected to the upper end of the shunt pipe, an air inlet is provided in the middle part of the rear end of the shunt pipe, a hollow tube is embedded and installed in the middle part of the inner side of the first shell, a controller body is clamped and installed in the interior of the second shell, a regulating valve is provided on the inner side of the upper end of the valve seat, and a medium outlet is provided at the front end of the valve seat.
2. The mass flow controller according to claim 1, characterized in that The first shell includes a left shell, a right shell, a semicircular groove and an embedding groove. The right shell is spliced and installed on the right side of the left shell. A semicircular groove is opened on the inner side of the middle part of the left end of the left shell, and an embedding groove is opened in the middle part above the semicircular groove.
3. The mass flow controller according to claim 1, characterized in that: The second shell includes a front shell, a rear shell, an external button and an observation window. The rear side of the front shell is spliced and installed with the rear shell. The upper part of the front end of the front shell is provided with an external button, and the lower part of the external button is provided with an observation window.
4. The mass flow controller according to claim 1, characterized in that: The rectifier assembly includes a placement plate, a servo motor, a placement bucket, a material discharge plate and a connecting tray. A servo motor is provided in the middle of the upper end of the placement plate, a placement bucket is provided on the outer side of the servo motor, a material discharge plate is provided at the lower end of the placement plate, and a connecting tray is threadedly installed at the lower end of the material discharge plate.
5. The mass flow controller according to claim 1, characterized in that: The first shell and the valve seat are reinforced by bolts on both sides, and four bolts are symmetrically distributed on each side. A medium pipeline is opened inside the valve seat, and the valve seat and the regulating valve are in an integrated structure.
6. The mass flow controller according to claim 1, characterized in that: The outer end of the explosion-proof shell is annularly distributed with reinforcing ribs, and the reinforcing ribs are welded and fixed to the explosion-proof shell, a line pipe is connected between the explosion-proof shell and the second shell, and a baffle is welded to the inside of the shunt tube to separate the inner side of the shunt tube into three cavities, and the cavities are distributed as an upper cavity and two lower cavities.
7. The mass flow controller according to claim 1, characterized in that: The lower end of the controller body extends to the interior of the hollow tube, and the regulating valve, the hollow tube and the connecting tube are interconnected.
8. The mass flow controller according to claim 2, characterized in that: The left shell and the right shell are exactly the same size, and semicircular grooves are provided on the relative inner sides of the left shell and the right shell. The inner diameter of the semicircular groove is equal to the outer diameter of the hollow tube, and the embedding groove is adapted to the size of the lower end structure of the second shell.
9. The mass flow controller according to claim 3, characterized in that: The inner side of the rear end of the front shell and the inner side of the front end of the rear shell are both provided with slots, and the size and diameter of the slots match the size of the controller body. The installation angle of the observation window is parallel to the position of the display screen of the controller body.
10. The mass flow controller according to claim 4, characterized in that There are four placement buckets symmetrically distributed, and the lower ends of the placement buckets are each provided with an inclined tube. The driving end of the servo motor extends to the inner side of the middle of the unloading tray and is reinforced by bolts. The unloading tray is composed of an inner ring structure and an outer ring structure. A movable groove is opened on the inner side of the outer ring structure, and a unloading stopper is provided at the outer end of the inner ring structure.