Micro quantitative dispensing valve

Abstract

The utility model provides a trace quantitative dispensing valve, which relates to the technical field of dispensing valves, and comprises an outer cylinder, a sealing cover arranged on the upper end face of the outer cylinder, a limiting plate fixed at the bottom of the outer cylinder, latches fixed at the bottom of the limiting plate, and a fixing device fixed in the outer cylinder, the fixing device comprises an outer plate, a sliding block slidably connected in the outer plate, and a heart-shaped groove arranged on the surface of the sliding block. The outer wall of the outer plate is rotatably connected with a fixed plate; the other end of the fixed plate is fixedly provided with a sliding pin; the sliding pin is in sliding connection with the heart-shaped groove; the front section of the sliding block is fixedly provided with a pushing rod, the pushing rod is in sliding connection with the outer plate, the bottom of the sliding block is in sliding connection with the sliding pin, and the bottom of the outer plate is fixedly provided with a supporting plate; in order to solve the problems, the detachable device convenient and fast to install is adopted, and therefore a user can install the sealing cover fast and conveniently, and maintenance and updating of the user are facilitated.

Description

Technical Field

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

[0002] With the development of the microelectronics industry, the requirements for the processing accuracy of tiny parts are getting higher and higher, which has promoted the development of precision dispensing technology. As a key component to realize this technology, the research and development and application of micro-dispensing valves are closely related to social technological progress. Modern manufacturing, especially in the electronics, automobile, medical equipment and other industries, has extremely high requirements for product quality and precision. Micro-dispensing valves are used in these industries to achieve precise dispensing operations to meet the needs of product assembly and packaging. The society's continuous pursuit of innovation has prompted companies to continuously explore new production technologies and processes. The innovative application of micro-dispensing valves is a reflection of this trend. With the enhancement of environmental awareness, reducing material waste and improving production efficiency have become important considerations for companies. Micro-dispensing valves can accurately control the amount of colloid used, reduce waste, and comply with the concept of green production.

[0003] In the existing technology, the integrated design of the quantitative dispensing valve will bring challenges in cleaning and maintenance after application. The integrated design means that the internal structure of the dispensing valve is relatively complex and difficult to directly access and clean, which leads to glue residue and solidification, affecting the performance and accuracy of the dispensing valve. Due to the difficulty of cleaning and maintenance, the integrated dispensing valve requires professional technicians to perform regular maintenance, which increases maintenance costs and time. When dispensing a variety of different materials, if the cleaning is not thorough, cross-contamination will occur, affecting product quality. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a micro-quantitative dispensing valve.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a micro-quantitative dispensing valve, comprising an outer cylinder, a sealing cover is provided on the upper end surface of the outer cylinder, a limit plate is fixed on the bottom of the outer cylinder, a latch is fixed on the bottom of the limit plate, a fixing device is fixed inside the outer cylinder, and the fixing device comprises an outer plate, a slider is slidably connected to the inside of the outer plate, a heart-shaped groove is provided on the surface of the slider, a connecting spring is fixed inside the outer plate, the connecting spring is fixedly connected to the slider, the outer wall of the outer plate is rotatably connected to the fixing plate, and a sliding pin is fixed to the other end of the fixing plate. The sliding pin is slidably connected to the heart-shaped groove, and a push rod is fixed to the front section of the sliding block, and the push rod is slidably connected to the outer plate. The bottom of the slider is slidably connected to the sliding pin, and a support plate is fixed to the bottom of the outer plate. The inner wall of the support plate is rotatably connected to the moving rod, and the bottom of the moving rod is rotatably connected to the sliding pin. In the prior art, the integrated design of the quantitative dispensing valve will bring challenges in cleaning and maintenance after application. The integrated design means that the internal structure of the dispensing valve is relatively complex and difficult to directly contact and clean, which leads to glue residue and solidification, affecting the performance and accuracy of the dispensing valve. The difficulty in cleaning and maintenance is that the integrated dispensing valve requires regular maintenance by professional technicians, which increases maintenance costs and time. When dispensing a variety of different materials, cross contamination will occur if the cleaning is not thorough, affecting product quality. To address this problem, the utility model adopts a convenient installation and disassembly device, that is, when the user needs to install the sealing cover, the internal push rod is pushed inward by the extrusion force, causing the slider to move backward until the sliding pin slides to the front end of the bottom of the sliding block. Then continue to press to move the sliding pin backward, causing the motion rod connected to the sliding pin to move backward under the force, so that the motion rod rotates and lifts upward along the support plate, causing the latch tooth to exceed the front end of the motion rod. At the same time, the sliding pin slides along the heart-shaped groove until the front end V-shaped position. Then the user retracts his finger, thereby connecting the spring to push the slider forward. The sliding pin fixes the slider with the help of the V-shape, and the front end of the motion rod also fixes the latch tooth, so that the sealing cover is installed. When the user needs to open the sealing cover, press the sealing cover again to make the sliding pin slide along the heart-shaped groove to the bottom. During this process, the motion rod will be lifted along the process, so that the latch tooth will be disengaged, thereby enabling the user to quickly install the sealing cover and facilitate user maintenance and updating.

[0006] Preferably, a regulating valve is fixed inside the outer cylinder, and the regulating valve includes an regulating outer ring, a moving ring is rotatably connected inside the regulating outer ring, a knob is fixed on the peripheral wall of the moving ring, a rotary tooth is rotatably connected inside the regulating outer ring, a slot is provided on the inner wall of the regulating outer ring, the rotary tooth is meshed and linked with the regulating outer ring through the slot, a limit pin is fixed on the upper end face of the rotary tooth, a slide groove is provided on the surface of the moving ring, and the slide groove is slidably connected to the limit pin. In the prior art, users cannot adjust the flow rate according to the required amount of glue, which may bring a series of problems and challenges. If the flow rate is fixed, users may use more glue than actually needed, resulting in material waste and increased costs. During the production process, different products may require different amounts of glue. The unadjustable flow rate may lead to poor consistency between products and affect product quality. Since the amount of glue used cannot be accurately controlled, additional steps may be required to adjust and optimize the production process, which will reduce production efficiency. To address such problems, the utility model adopts a method of installing a regulating valve. The user rotates the motion circle with the help of a knob according to the required flow rate, so that the rotating gear moves with the help of a limit pin and a slide groove to expand or shrink the internal hole, thereby realizing rapid adjustment of the dispensing valve flow rate and improving user experience.

[0007] Preferably, a buffer rubber head is fixed to the front end surface of the push rod, so as to avoid damage to the stuck teeth caused by rigid contact of the push rod.

[0008] Preferably, the connecting spring adopts a double-strand spring. The design of the double-strand spring makes it more stable than a single-strand spring when bearing load, because the two spiral coils can support each other, reducing twisting and deflection, thereby increasing the stability of the spring mechanism and improving the service life of the device.

[0009] Preferably, the cross section of the latch teeth is an arc-shaped surface, thereby further reducing the sense of obstruction caused by the latch teeth squeezing the sports rod, and making the sports rod unfold more smoothly along the latch teeth.

[0010] Preferably, a buffer ring is provided on the circumference of the outer cylinder, thereby further improving the impact resistance of the outer cylinder of the dispensing valve.

[0011] Preferably, a rubber ring is provided on the surface of the knob, thereby improving the user's feel when turning the knob and avoiding slipping due to wet hands.

[0012] Beneficial effects

[0013] 1. In the prior art, the one-piece design of the quantitative dispensing valve will bring challenges in cleaning and maintenance after application. The one-piece design means that the internal structure of the dispensing valve is relatively complex and difficult to directly contact and clean, which leads to glue residue and solidification, affecting the performance and precision of the dispensing valve. Due to the difficulty in cleaning and maintenance, the one-piece dispensing valve requires professional technicians to perform regular maintenance, which increases maintenance costs and time. When dispensing a variety of different materials, cross contamination will occur if the cleaning is not thorough, affecting product quality. To address such problems, the utility model adopts a convenient installation and disassembly device, that is, when the user needs to install the sealing cover, the internal push rod is pushed inward by the extrusion force, causing the slider to move backward until the sliding pin slides out. The lock pin is then pressed against the front end of the sliding block to move it backwards, and the moving rod connected to the sliding pin is forced to move backwards, so that the moving rod is rotated and lifted up along the support plate, so that the latch tooth exceeds the front end of the moving rod. At the same time, the sliding pin slides along the heart-shaped groove until it reaches the V-shaped position at the front end. The user then retracts his finger, thereby connecting the spring to push the slider forward. The sliding pin fixes the slider with the help of the V-shape, and the front end of the moving rod is also fixed with the latch tooth, so that the sealing cover is installed. When the user needs to open the sealing cover, he presses the sealing cover again to make the sliding pin slide to the bottom along the heart-shaped groove. During this process, the moving rod will be lifted along the process to disengage the latch tooth, thereby enabling the user to quickly install the sealing cover and facilitate user maintenance and updates.

[0014] 2. In the existing technology, users are unable to adjust the flow rate according to the required amount of glue, which may bring a series of problems and challenges. If the flow rate is fixed, users may use more glue than actually needed, resulting in material waste and increased costs. During the production process, different products may require different amounts of glue. The unadjustable flow rate may lead to poor consistency between products, affecting product quality. Since the amount of glue cannot be accurately controlled, additional steps may be required to adjust and optimize the production process, which will reduce production efficiency. To address such problems, the utility model adopts the installation of a regulating valve. The user rotates the motion ring with the help of a knob according to the required flow rate, so that the rotating gear uses the limit pin and the slide groove to move, so that the internal hole is expanded or reduced, thereby realizing rapid adjustment of the dispensing valve flow rate and improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the mechanical buckle structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the regulating valve port of the utility model.

[0019] Legend:

[0020] 1. Outer cylinder; 2. Sealing cover; 201. Limit plate; 202. Gear; 3. Fixing device; 301. Outer plate; 302. Slider; 303. Heart-shaped groove; 304. Connecting spring; 305. Fixing plate; 306. Push rod; 307. Support plate; 308. Moving rod; 4. Regulating valve; 401. Adjusting outer ring; 402. Moving ring; 403. Knob; 404. Rotary gear; 405. Limit pin; 406. Slide groove. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments and drawings. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0022] The specific embodiments of the present utility model are described below with reference to the accompanying drawings. Specific embodiment:

[0024] Reference Figure 1-4, a micro-quantitative dispensing valve comprises an outer cylinder 1, a sealing cover 2 is provided on the upper end surface of the outer cylinder 1, a limit plate 201 is fixed at the bottom of the outer cylinder 1, a latch tooth 202 is fixed at the bottom of the limit plate 201, a fixing device 3 is fixed inside the outer cylinder 1, the fixing device 3 comprises an outer plate 301, a slider 302 is slidably connected inside the outer plate 301, a heart-shaped groove 303 is provided on the surface of the slider 302, a connecting spring 304 is fixed inside the outer plate 301, the connecting spring 304 is fixedly connected to the slider 302, the outer wall of the outer plate 301 is rotatably connected to a fixing plate 305, a sliding pin is fixed at the other end of the fixing plate 305, the sliding pin is slidably connected to the heart-shaped groove, a pushing rod 306 is fixed to the front section of the sliding block 302, the pushing rod 306 is slidably connected to the outer plate 301, the bottom of the slider 303 is slidably connected to a sliding pin, and a support plate 307 is fixed to the bottom of the outer plate 301, a support plate The inner wall of the plate 307 is rotatably connected to the moving rod 308, and the bottom of the moving rod 308 is rotatably connected to the sliding pin. A regulating valve 4 is fixed inside the outer cylinder 1. The regulating valve 4 includes an adjusting outer ring 401, and the inner surface of the adjusting outer ring 401 is rotatably connected to the moving ring 402. A knob 403 is fixed on the peripheral wall of the moving ring 402. The inner surface of the adjusting outer ring 401 is rotatably connected to the rotating gear 404. A groove is provided on the inner wall of the adjusting outer ring 401. The rotating gear 404 is engaged with the adjusting outer ring 401 through the groove. A limit pin 405 is fixed on the upper end surface of the rotating gear 404. A sliding groove 406 is provided on the surface of the moving ring 402. The sliding groove 406 is slidably connected to the limit pin 405. A buffer rubber head is fixed on the front end surface of the pushing rod 306. The connecting spring 304 adopts a double-strand spring. The cross-section of the tooth 202 is an arc-shaped surface. A buffer ring is covered on the peripheral surface of the outer cylinder 1, and a rubber ring is covered on the surface of the knob 403.

[0025] In the prior art, the one-piece design of the quantitative dispensing valve brings challenges in cleaning and maintenance after application. The one-piece design means that the internal structure of the dispensing valve is relatively complex and difficult to directly contact and clean, which leads to glue residue and solidification, affecting the performance and accuracy of the dispensing valve. Due to the difficulty in cleaning and maintenance, the one-piece dispensing valve requires professional technicians to perform regular maintenance, which increases maintenance costs and time. When dispensing a variety of different materials, cross-contamination will occur if the cleaning is not thorough, affecting product quality. To address such problems, the present invention adopts an easy-to-install and disassembly device, that is, when the user needs to install the sealing cover 2, the internal push rod 306 is pushed inward by the extrusion force, causing the slider 302 to move backward until the sliding pin slides to the front end of the bottom of the sliding block, and then continues to press. , causing the sliding pin to move backward, causing the motion rod connected to the sliding pin to move backward under the force, thereby causing the motion rod 308 to rotate and lift upward along the support plate 307, causing the latch tooth 202 to exceed the front end of the motion rod. At the same time, the sliding pin slides along the heart-shaped groove 303 until the front end V-shaped position. After that, the user retracts his finger, thereby connecting the spring 304 to push the slider 302 forward. The sliding pin fixes the slider 302 with the help of the V-shape, and at the same time, the front end of the motion rod 308 also fixes the latch tooth 202, so that the sealing cover 2 is installed. When the user needs to open the sealing cover 2, he presses the sealing cover 2 again to make the sliding pin slide to the bottom along the heart-shaped groove 303. During this process, the motion rod will be lifted along the process, thereby disengaging the latch tooth 202, thereby enabling the user to quickly install the sealing cover 2 and facilitate user maintenance and updates.

[0026] When the user needs to install the sealing cover 2, the internal pushing rod 306 is pushed inward by the extrusion force, causing the slider 302 to move backward until the sliding pin slides to the front end of the bottom of the sliding block. Then, continue to press to cause the sliding pin to move backward, so that the motion rod connected to the sliding pin is forced to move backward, thereby causing the motion rod 308 to rotate and lift upward along the support plate 307, so that the locking tooth 202 exceeds the front end of the motion rod. At the same time, the sliding pin slides along the heart-shaped groove 303 until the front end V-shaped position. Then, the user retracts his finger, thereby connecting the spring 304 to push the slider 302 forward. The sliding pin fixes the slider 302 with the help of the V-shape, and the front end of the motion rod 308 also fixes the locking tooth 202. The sealing cover 2 is installed. When the user needs to open the sealing cover 2, press the sealing cover 2 again to cause the sliding pin to slide to the bottom along the heart-shaped groove 303. During this process, the motion rod will be lifted along the process, thereby disengaging the locking tooth 202.

[0027] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0028] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A micro-quantitative dispensing valve, comprising an outer cylinder (1), wherein the upper end surface of the outer cylinder (1) is provided with a sealing cover (2), characterized in that: A limiting plate (201) is fixed at the bottom of the outer cylinder (1), and a latching tooth (202) is fixed at the bottom of the limiting plate (201). A fixing device (3) is fixed inside the outer cylinder (1), and the fixing device (3) comprises an outer plate (301), a slider (302) is slidably connected inside the outer plate (301), and a heart-shaped groove (303) is provided on the surface of the slider (302). A connecting spring (304) is fixed inside the outer plate (301), and the connecting spring (304) is fixedly connected to the slider (302). The wall is rotatably connected to a fixed plate (305), the other end of the fixed plate (305) is fixed with a sliding pin, the sliding pin is slidably connected to the heart-shaped groove (303), the front section of the slider (302) is fixed with a push rod (306), the push rod (306) is slidably connected to the outer plate (301), the bottom of the slider (302) is slidably connected to the sliding pin, the bottom of the outer plate (301) is fixed with a support plate (307), the inner wall of the support plate (307) is rotatably connected to a moving rod (308), and the bottom of the moving rod (308) is rotatably connected to the sliding pin.

2. The micro-quantity dispensing valve according to claim 1, characterized in that: A regulating valve (4) is fixed inside the outer cylinder (1), and the regulating valve (4) includes an regulating outer ring (401), a moving ring (402) is rotatably connected inside the regulating outer ring (401), a rotating knob (403) is fixed on the peripheral wall of the moving ring (402), a rotating tooth (404) is rotatably connected inside the regulating outer ring (401), a slot is provided on the inner wall of the regulating outer ring (401), the rotating tooth (404) is meshed and linked with the regulating outer ring (401) through the slot, a limiting pin (405) is fixed on the upper end surface of the rotating tooth (404), a sliding groove (406) is provided on the surface of the moving ring (402), and the sliding groove (406) is slidably connected to the limiting pin (405).

3. The micro-quantity dispensing valve according to claim 1, characterized in that: A buffer rubber head is fixed to the front end surface of the push rod (306).

4. The micro-quantitative dispensing valve according to claim 1, characterized in that: The connecting spring (304) is a double-strand spring.

5. The micro-quantitative dispensing valve according to claim 1, characterized in that: The cross section of the latching teeth (202) is an arc-shaped surface.

6. The micro-quantitative dispensing valve according to claim 1, characterized in that: The outer cylinder (1) is sheathed with a buffer ring on its circumference.

7. The micro-quantitative dispensing valve according to claim 2, characterized in that: The surface of the rotating knob (403) is covered with a rubber ring.

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