Double-liquid screw dispensing valve

Abstract

The utility model provides a double-liquid screw dispensing valve, which relates to the technical field of electronic packaging and comprises a dispensing main body, a plurality of screws are fixed at the top of the dispensing main body, screw channels are arranged on the inner walls of the screws, rotating shafts are fixed on the front surfaces of the screws, cover plates are rotatably connected to the surfaces of the rotating shafts, and supporting plates are fixed on the surfaces of the screw channels. The problems that although a double-liquid screw dispensing valve is excellent in mixing and dispensing of two kinds of liquid in an accurate proportion, the design complexity of the double-liquid screw dispensing valve also brings certain maintenance challenges, particularly, when disassembly and maintenance are needed, a user finds that the process is quite difficult, a plurality of rubber rings are arranged in a valve body, and the valve body is difficult to disassemble and maintain are solved by adopting a supporting plate mounting mode. The rubber rings are usually used for guaranteeing sealing performance and preventing cross contamination of materials, but the rubber rings are located in the deep position of the valve body and are not easy to access, replacement work is difficult, a screw and a screw channel occupy a large space, an operable area is very limited when workers conduct maintenance, maintenance difficulty is increased, and maintenance cost is reduced. And the maintenance time is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic packaging, in particular to a double-liquid screw dispensing valve. Background Art

[0002] A dual-liquid screw dispensing valve is a dispensing device specifically designed for precisely controlling and mixing two different liquids. It is widely used in industrial applications requiring precise control of the mixing ratio. Its primary function is to precisely mix and dispense two different liquid materials in a predetermined ratio. This dispensing valve is typically used for materials that begin chemically reacting during mixing, such as epoxy resin and polyurethane. Because these materials rapidly solidify after mixing, the dispensing valve must be able to precisely control the mixing ratio and maintain a uniform mixture during dispensing.

[0003] In the existing technology, although the dual-liquid screw dispensing valve performs well in mixing and dispensing two liquids in precise proportions, its design complexity also brings some maintenance challenges. In particular, when disassembly and maintenance are required, users will find this process quite difficult. The valve body contains multiple rubber rings, which are usually used to ensure sealing and prevent cross-contamination of materials. However, they are located deep in the valve body and are not easy to access, which makes replacement difficult. Since the screw and screw channel take up a lot of space, the area available for staff to operate during maintenance is very limited, which not only increases the difficulty of maintenance, but also prolongs maintenance time. Utility Model Content

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

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a double-liquid screw dispensing valve, comprising a dispensing body, a plurality of screws fixed on the top of the dispensing body, a screw channel provided on the inner wall of the screw, a rotating shaft fixed on the front of the screw, a cover plate rotatably connected to the surface of the rotating shaft, a support plate fixed to the surface of the screw channel, ladder pieces fixed on both sides of the bottom of the support plate, one side of the ladder piece is rotatably connected to a main connecting rod, one end of the main connecting rod is rotatably connected to the inner wall of the screw, one side of the ladder piece is rotatably connected to a secondary screw, one end of the secondary screw is rotatably connected to the inner wall of the screw, a limiting column is fixed on one side of the secondary screw, a rotating shaft is fixed on one side of the ladder piece, a torsion spring is provided on the surface of the rotating shaft, a clamp is rotatably connected to the surface of the rotating shaft, and the inner wall of the clamp is fixed to one end of the torsion spring. In the prior art, although the double-liquid screw dispensing valve performs well in mixing and dispensing two liquids in precise proportions, its design complexity also brings some maintenance challenges, especially when disassembly and maintenance are required, users will find this process quite difficult, and the valve body contains Multiple rubber rings are usually used to ensure sealing and prevent cross-contamination of materials. However, they are located deep in the valve body and are not easy to access, which makes replacement difficult. Since the screw and screw channel occupy a large amount of space, the area available for staff to operate during maintenance is very limited, which not only increases the difficulty of maintenance but also prolongs the maintenance time. To address this problem, the utility model solves it by installing a pallet. When the staff needs to repair and maintain the equipment, they rotate the cover plate with the shaft as the axis to expose the inner wall of the screw, and then push the pallet outward to make the main connecting rod and the auxiliary screw rotate counterclockwise. When the main connecting rod and the auxiliary screw rotate to 90 degrees, the cut angle of one end of the clamping tooth contacts the limiting column of the auxiliary screw, and presses the clamping piece to rotate clockwise at the axis position. The torsion spring accumulates elastic potential energy and quickly releases the elastic potential energy after the limiting column passes, causing the clamping piece to rebound and clamp the limiting column, so that the pallet and the screw channel are fixed after leaving the inner wall of the screw, which is convenient for staff to inspect and maintain the equipment, thereby improving user experience.

[0006] Preferably, the ladder member is provided with an inclined slide groove on the surface, and a track member is fixed on the other side of the ladder member, and an extension plate is fixed on one side of the clamping member, and the surface of the extension plate is slidably connected to the inner wall of the inclined slide groove, and a pull wire is fixed on one side of the extension plate, and the surface of the pull wire is slidably connected to the inner wall of the track member, and a handle is fixed on one end of the pull wire. In the prior art, when the support plate and the screw channel need to be reset, the staff can reset it by rotating the clamping member clockwise to disengage the clamping member from the limiting column. After the clamping member is disengaged from the limiting column, the support plate and the screw channel reset faster. Once the staff moves slowly, it is easy to cause hand injuries, which reduces production safety. To solve this problem, the utility model adopts the method of installing a handle to achieve that when the staff needs to reset, they can pull the handle, so that the pull wire pulls the extension plate to drive the clamping member to rotate and disengage from the limiting column, and then the torsion spring releases the elastic potential energy to reset the component, which is convenient for the staff to operate and achieves the effect of improving user experience.

[0007] Preferably, holding grooves are provided on both sides of the dispensing body. By providing the holding grooves, the device is given an ergonomic design, which fits the palm of the staff more closely, is easy to hold, and is not easy to fall off, thereby improving the user experience.

[0008] Preferably, the bottom of the support plate is coated with a rubber layer to increase friction when the staff moves the support plate, facilitate the staff's operation, and improve the user experience.

[0009] Preferably, one end of the biting teeth of the clamp is set to be arc-shaped to reduce damage to the component caused by the large collision force between the clamp and the limiting column. The arc shape increases the contact area between the two, reduces pressure, and increases the service life of the equipment.

[0010] Preferably, the surface of the rubber layer is provided with anti-slip grooves to facilitate workers to leverage and improve work efficiency.

[0011] Preferably, the thickness of the main connecting rod and the thickness of the auxiliary screw are smaller than the distance between the screw and the support plate, so as to prevent friction between the components and improve the service life of the equipment.

[0012] Beneficial effects

[0013] 1. In the existing technology, although the dual-liquid screw dispensing valve performs well in mixing and dispensing two liquids in a precise ratio, its design complexity also brings some maintenance challenges. In particular, when disassembly and maintenance are required, users will find this process quite difficult. The valve body contains multiple rubber rings, which are usually used to ensure sealing and prevent cross-contamination of materials. However, they are located deep in the valve body and are not easy to access, which makes replacement difficult. Since the screw and the screw channel take up a lot of space, the area available for maintenance by the staff is very limited, which not only increases the difficulty of maintenance, but also prolongs the maintenance time. To address such problems, this utility model has been proposed. The new solution is to install a pallet. When the staff needs to repair and maintain the equipment, they can rotate the cover open with the shaft as the axis to expose the inner wall of the screw, and then push the pallet outward to make the main connecting rod and the auxiliary screw rotate counterclockwise. When the main connecting rod and the auxiliary screw rotate to 90 degrees, the cut angle of one end of the clamping tooth contacts the limiting column of the auxiliary screw, and press the clamp to make it rotate clockwise at the axis position. The torsion spring accumulates elastic potential energy and quickly releases the elastic potential energy after the limiting column passes, so that the clamp rebounds and clamps the limiting column, so that the pallet and the screw are fixed after leaving the inner wall of the screw, which is convenient for the staff to inspect and maintain the equipment, thereby improving the user experience.

[0014] 2. In the prior art, when the support plate and the screw channel need to be reset, the staff can reset them by rotating the clamp clockwise to disengage the clamp from the limiting column. After the clamp is disengaged from the limiting column, the support plate and the screw channel reset quickly. Once the staff moves slowly, it is easy to cause hand injuries, which reduces production safety. To solve this problem, the utility model solves it by installing a handle. When the staff needs to reset, they can pull the handle, so that the pull wire pulls the extension plate to drive the clamp to rotate and disengage from the limiting column, and then the torsion spring releases the elastic potential energy to reset the component, which is convenient for the staff to operate and achieves the effect of 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 three-dimensional structure of the cover plate of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the support plate of the utility model;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the ladder member of the present utility model;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the extension plate of the utility model;

[0020] Figure 6 This is a schematic diagram of the three-dimensional structure of the track member of the utility model;

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of the clamp of the utility model.

[0022] Legend:

[0023] 1. Glue dispensing body; 101. Screw; 102. Holding groove; 103. Screw channel; 2. Rotating shaft; 201. Cover plate; 202. Support plate; 203. Ladder piece; 204. Main connecting rod; 205. Secondary screw; 206. Clamp; 207. Rotary shaft; 208. Torsion spring; 3. Inclined slide; 301. Extension plate; 302. Pull wire; 303. Track piece; 304. Handle. DETAILED DESCRIPTION

[0024] 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.

[0025] The specific embodiments of the present utility model are described below with reference to the accompanying drawings. Specific embodiment:

[0027] Reference Figure 1-7, a double-liquid screw dispensing valve includes a dispensing body 1, a plurality of screws 101 are fixed on the top of the dispensing body 1, a screw channel 103 is provided on the inner wall of the screw 101, a rotating shaft 2 is fixed on the front of the screw 101, a cover plate 201 is rotatably connected to the surface of the rotating shaft 2, a support plate 202 is fixed on the surface of the screw channel 103, ladder pieces 203 are fixed on both sides of the bottom of the support plate 202, one side of the ladder piece 203 is rotatably connected to a main connecting rod 204, one end of the main connecting rod 204 is rotatably connected to the inner wall of the screw 101, one side of the ladder piece 203 is rotatably connected to a secondary screw 205, one end of the secondary screw 205 is rotatably connected to the screw 1 01 inner wall rotation connection, one side of the auxiliary screw 205 is fixed with a limiting column, one side of the ladder 203 is fixed with a rotary shaft 207, the surface of the rotary shaft 207 is provided with a torsion spring 208, the surface of the rotary shaft 207 is rotatably connected with a clamp 206, the inner wall of the clamp 206 is fixed to one end of the torsion spring 208, although the dual-liquid screw dispensing valve performs well in mixing and dispensing two liquids in precise proportions, its design complexity also brings some maintenance challenges, especially when it needs to be disassembled and repaired, users will find this process quite difficult, the valve body contains multiple rubber rings, these rubber rings are very difficult to disassemble and repair, and the valve body contains multiple rubber rings. Rubber rings are usually used to ensure sealing and prevent cross contamination of materials. However, they are located deep in the valve body and are not easy to access, which makes replacement difficult. Since the screw and the screw channel take up a lot of space, the area available for maintenance by the staff is very limited, which not only increases the difficulty of maintenance but also prolongs the maintenance time. The solution is to install a support plate 202. When the staff needs to repair and maintain the equipment, they can rotate the cover plate 201 with the shaft 2 as the axis to expose the inner wall of the screw 101, and then push the support plate 202 outward to make the main connecting rod 20 4 and the secondary screw 205 rotate counterclockwise. When the main connecting rod 204 and the secondary screw 205 rotate to 90 degrees, the angled end of the teeth of the clamp 206 contacts the limiting post of the secondary screw 205, pressing the clamp 206 to rotate clockwise at the position of the rotation axis 207. The torsion spring 208 accumulates elastic potential energy and quickly releases the elastic potential energy after the limiting post passes, causing the clamp 206 to rebound and clamp the limiting post. After the support plate 202 and the screw channel 103 are separated from the inner wall of the screw 101, they are fixed. This facilitates the inspection and maintenance of the equipment by the staff and achieves the effect of improving the user experience. The bottom of the support plate 202 is coated with a rubber layer to increase friction when the staff moves the support plate 202, facilitating staff operation and improving the user experience. The teeth of the clamp 206 are designed to be arc-shaped at one end to reduce the damage to the components caused by the large collision force between the clamp 206 and the limiting post. The arc shape increases the contact area between the two, reduces pressure, and increases the service life of the equipment. The rubber layer surface is provided with anti-skid grooves, which are convenient for workers to use and improve work efficiency. The thickness of the main connecting rod 204 and the thickness of the auxiliary screw 205 are less than the distance between the screw 101 and the supporting plate 202, which prevents friction between the components and improves the service life of the equipment.

[0028] The ladder member 203 is provided with an inclined groove 3 on its surface, a track member 303 is fixed on the other side of the ladder member 203, an extension plate 301 is fixed on one side of the clamping member 206, the surface of the extension plate 301 is slidably connected to the inner wall of the inclined groove 3, a pull wire 302 is fixed on one side of the extension plate 301, the surface of the pull wire 302 is slidably connected to the inner wall of the track member 303, and a handle 304 is fixed on one end of the pull wire 302. When the support plate 202 and the screw channel 103 need to be reset, the staff can rotate the clamping member 206 clockwise to disengage the clamping member 206 from the limiting column. The clamp 206 is reset, and after the clamp 206 is separated from the limiting column, the support plate 202 and the screw channel 103 reset quickly. Once the staff moves slowly, it is easy to cause hand injuries, reducing production safety. The problem is solved by installing a handle 304. When the staff needs to reset, they can pull the handle 304, so that the pull wire 302 pulls the extension plate 301 to drive the clamp 206 to rotate and separate from the limiting column, and then the torsion spring 208 releases the elastic potential energy to reset the component, which is convenient for the staff to operate and improves the user experience. Holding grooves 102 are provided on both sides of the dispensing body 1. By providing the holding grooves 102, the equipment is given an ergonomic design, which fits the palm of the staff more closely, is easy to hold, and is not easy to fall off, thereby improving the user experience.

[0029] The working principle of the utility model is as follows: when the staff needs to repair and maintain the equipment, they rotate the cover plate 201 with the rotating shaft 2 as the axis to expose the inner wall of the screw 101, and then push the supporting plate 202 outward to make the main connecting rod 204 and the auxiliary screw 205 rotate counterclockwise. When the main connecting rod 204 and the auxiliary screw 205 rotate to 90 degrees, the cutting angle of one end of the clamping member 206 bites into contact with the limiting column of the auxiliary screw 205, and presses the clamping member 206 to rotate clockwise at the position of the rotating shaft 207, and the torsion spring 208 accumulates elastic potential energy and quickly releases it after the limiting column passes, causing the clamp 206 to rebound and clamp the limiting column, so that the support plate 202 and the screw channel 103 leave the inner wall of the screw 101 and complete the fixation, which is convenient for the staff to inspect and maintain the equipment. When the staff needs to reset, they can pull the handle 304 to make the pull wire 302 pull the extension plate 301 to drive the clamp 206 to rotate and disengage from the limiting column, and then the torsion spring 208 releases the elastic potential energy to reset the component, which is convenient for the staff to operate.

[0030] 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.

[0031] 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 double-liquid screw dispensing valve, comprising a dispensing body (1), wherein a plurality of screws (101) are fixed on the top of the dispensing body (1), and a screw channel (103) is provided on the inner wall of the screw (101), characterized in that: A rotating shaft (2) is fixed on the front of the screw (101), a cover plate (201) is rotatably connected to the surface of the rotating shaft (2), a supporting plate (202) is fixed to the surface of the screw channel (103), ladder members (203) are fixed on both sides of the bottom of the supporting plate (202), one side of the ladder member (203) is rotatably connected to a main connecting rod (204), one end of the main connecting rod (204) is rotatably connected to the inner wall of the screw (101), and one side of the ladder member (203) is rotatably connected to the inner wall of the screw (101). A secondary screw rod (205) is rotatably connected, one end of the secondary screw rod (205) is rotatably connected to the inner wall of the screw member (101), a limiting column is fixed to one side of the secondary screw rod (205), a rotating shaft (207) is fixed to one side of the ladder member (203), a torsion spring (208) is provided on the surface of the rotating shaft (207), a clamping member (206) is rotatably connected to the surface of the rotating shaft (207), and the inner wall of the clamping member (206) is fixed to one end of the torsion spring (208).

2. The dual-liquid screw dispensing valve according to claim 1, characterized in that: An inclined slide groove (3) is provided on the surface of the ladder member (203), a track member (303) is fixed on the other side of the ladder member (203), an extension plate (301) is fixed on one side of the clamping member (206), the surface of the extension plate (301) is slidably connected to the inner wall of the inclined slide groove (3), a pull wire (302) is fixed on one side of the extension plate (301), the surface of the pull wire (302) is slidably connected to the inner wall of the track member (303), and a handle (304) is fixed on one end of the pull wire (302).

3. The dual-liquid screw dispensing valve according to claim 1, characterized in that: Holding grooves (102) are provided on both sides of the dispensing body (1).

4. The dual-liquid screw dispensing valve according to claim 1, characterized in that: The bottom of the support plate (202) is covered with a rubber layer.

5. The dual-liquid screw dispensing valve according to claim 1, characterized in that: One end of the biting teeth of the clamping member (206) is configured in an arc shape.

6. The dual-liquid screw dispensing valve according to claim 4, characterized in that: The surface of the rubber layer is provided with anti-skid grooves.

7. The dual-liquid screw dispensing valve according to claim 1, characterized in that: The thickness of the main connecting rod (204) and the thickness of the auxiliary screw rod (205) are smaller than the distance between the screw member (101) and the supporting plate (202).

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