Pump valve assembly and blending equipment

Abstract

The invention relates to the technical field of feed blending equipment, in particular to a pump valve assembly and blending equipment. According to the pump valve assembly, a first cavity, a second cavity and an adjusting cavity are formed in a shell, the adjusting cavity communicates with the first cavity and the second cavity, and an injection opening is formed in the adjusting cavity; the driving assembly comprises a first sliding part and a second sliding part; the adjusting piece is arranged in the adjusting cavity and is provided with a distribution cavity, and a first discharging part, a second discharging part, a first feeding part and a second feeding part which are communicated with the distribution cavity; the first discharging part and the second discharging part are respectively communicated with the injection opening, and the aperture of the first discharging part is larger than that of the second discharging part; the first feeding part can be communicated with the first cavity, and the second feeding part can be communicated with the second cavity, so that distribution of materials in the first cavity and the second cavity and / or large-flow and small-flow injection of the materials are achieved through cooperation of the adjusting part and the driving assembly, operation is convenient, and the production efficiency of the blending equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of feeding and dispensing equipment, and in particular, to a pump valve assembly and a dispensing equipment. Background Art

[0002] The dispensing of paints, inks, and liquid cosmetics is to mix some liquid matrix materials according to a set ratio to obtain the required color or functional liquid mixture. There are more and more users who customize various paints, inks, and cosmetics individually. For example, different coatings, latex paints, and inks are made into products with different colors and physical properties according to customer needs. In the field of cosmetics, users can formulate cosmetics with different colors or functions according to their skin color or application scenarios. Therefore, dispensing equipment is needed to meet the individual customization needs of users.

[0003] The current dispensing equipment needs to be pulled up to suck materials and then pressed down to discharge materials, which is laborious to operate, affects production efficiency, and is prone to generating bubbles during the suction process. In particular, it is more difficult to handle materials with high hygiene requirements and high viscosity during the suction and discharge processes. In addition, the cosmetics and skincare industry also needs to precisely control the ratio of materials, otherwise it will affect product quality. Summary of the Invention

[0004] In view of this, the purpose of the present application is to provide a pump valve assembly and a dispensing equipment to solve the problem that the material injection method in the existing dispensing equipment is complex, especially for materials with high hygiene requirements and high viscosity, which are more difficult during the suction and discharge processes, thus affecting the production efficiency of the dispensing equipment and unable to achieve precise dispensing.

[0005] The first aspect of the present invention provides a pump valve assembly, wherein the pump valve assembly includes:

[0006] A housing, which internally forms a first cavity, a second cavity, and an adjustment cavity. The first cavity and the second cavity are communicated via the adjustment cavity, and the volume of the first cavity is larger than that of the second cavity. Materials are contained in the first cavity and the second cavity, and a discharge port is provided on the cavity wall of the adjustment cavity;

[0007] A driving assembly, including a first sliding member disposed in the first cavity and a second sliding member disposed in the second cavity;

[0008] The adjusting member is disposed in the adjusting cavity. A distribution cavity is formed inside the adjusting member. The adjusting member is provided with a first discharge portion, a second discharge portion, a first feed portion, and a second feed portion that are respectively communicated with the distribution cavity. The first discharge portion and the second discharge portion can be respectively communicated with the injection outlet, and the aperture of the first discharge portion is larger than that of the second discharge portion. The first feed portion can be communicated with the first cavity, and the second feed portion can be communicated with the second cavity.

[0009] Preferably, the adjusting member is further provided with a first clearance elimination inlet, a first clearance elimination outlet, a second clearance elimination inlet, and a second clearance elimination outlet that are respectively communicated with the distribution cavity. The first clearance elimination inlet and the second clearance elimination outlet can be respectively communicated with the first cavity, and the second clearance elimination inlet and the first clearance elimination outlet can be respectively communicated with the second cavity.

[0010] The first cavity and the second cavity can be sequentially communicated through the first clearance elimination inlet, the distribution cavity, and the first clearance elimination outlet, so that the material in the first cavity enters the second cavity; or the first cavity and the second cavity can be sequentially communicated through the second clearance elimination inlet, the distribution cavity, and the second clearance elimination outlet, so that the material in the second cavity enters the first cavity.

[0011] Preferably, the axis of the first discharge portion is disposed at an angle to the axis of the second discharge portion.

[0012] The first discharge portion, the first clearance elimination inlet, and the first clearance elimination outlet are disposed on the same side of the distribution cavity.

[0013] The second discharge portion, the second clearance elimination inlet, and the second clearance elimination outlet are disposed on the same side of the distribution cavity.

[0014] Preferably, the first clearance elimination inlet and the first feed portion are coaxially disposed, and the second clearance elimination inlet and the second feed portion are coaxially disposed.

[0015] Preferably, a first partition member is disposed between the first cavity and the adjusting cavity. The first partition member is provided with an independently provided first flow channel and a second flow channel.

[0016] A second partition member is disposed between the second cavity and the adjusting cavity. The second partition member is provided with a third flow channel.

[0017] When the first discharge part is in communication with the injection outlet, the first feed part is in communication with the first flow channel; when the second discharge part is in communication with the injection outlet, the second feed part is in communication with the third flow channel; when the first cavity and the second cavity are in communication, one of the first discharge part and the second discharge part is in communication with the second flow channel, the other of the first discharge part and the second discharge part is blocked by the housing, and the second feed part is in communication with the third flow channel.

[0018] Preferably, both the first flow channel and the second flow channel are formed as hole-like structures; the third flow channel is formed as an arc-shaped space arranged around the outer wall of the adjusting member, and the second feed part can swing along the extending track of the arc-shaped space.

[0019] Preferably, the outer wall of the adjusting member is formed as a stepped shaft structure including a first stepped part and a second stepped part, the radial dimension of the first stepped part is larger than the radial dimension of the second stepped part, the first discharge part, the second discharge part and the first feed part are arranged on the first stepped part, and the second feed part is arranged on the second stepped part.

[0020] Preferably, an injection port in communication with the distribution cavity is further provided on the adjusting member, and a filling port in communication with the injection port is provided on the housing;

[0021] The pump valve assembly further includes:

[0022] A seal, plugging the filling port.

[0023] Preferably, the adjusting member is rotatably connected to the housing, and one end of the adjusting member in the axial direction extends out of the housing to form an adjusting part; the first discharge part, the second discharge part, the first feed part and the second feed part all extend along the radial direction of the adjusting member;

[0024] And / or, the first discharge part, the second discharge part, the first feed part and the second feed part are all formed by inwardly recessing the outer wall of the adjusting member.

[0025] The second aspect of the present invention provides a dispensing device, including the pump valve assembly according to any one of the above technical solutions.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] In the pump valve assembly of the present invention, a first cavity, a second cavity, and an adjustment cavity are formed inside the housing. The first cavity and the second cavity are communicated via the adjustment cavity, and the volume of the first cavity is larger than that of the second cavity. Materials are contained in the first cavity and the second cavity, and an injection outlet is provided on the cavity wall of the adjustment cavity; the drive assembly includes a first sliding member disposed in the first cavity and a second sliding member disposed in the second cavity; the adjustment member is disposed in the adjustment cavity, and a distribution cavity is formed inside the adjustment member. The adjustment member is provided with a first discharge portion, a second discharge portion, a first feed portion, and a second feed portion that are respectively communicated with the distribution cavity; the first discharge portion and the second discharge portion can be respectively communicated with the injection outlet, and the aperture of the first discharge portion is larger than that of the second discharge portion; the first feed portion can be communicated with the first cavity, and the second feed portion can be communicated with the second cavity. In this way, through the cooperation of the adjustment member and the drive assembly, the distribution of materials in the first cavity and the second cavity and / or the injection of materials in large and small flows are realized, which saves time and effort, is convenient to operate, has precise control, avoids the generation of bubbles, and improves the production efficiency of the dispensing equipment and the quality of the products produced by the dispensing equipment.

[0028] To make the above objects, features, and advantages of the present application more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, is described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 Schematic structural diagram of the pump valve assembly provided in Embodiment 1 of the present invention;

[0031] Figure 2 Exploded perspective view of the pump valve assembly provided in Embodiment 1 of the present invention;

[0032] Figure 3 Schematic structural diagram of the state of the adjustment member during the clearance elimination process before adjusting the large flow in the communication mode between the first cavity and the second cavity of the pump valve assembly provided in Embodiment 1 of the present invention;

[0033] Figure 4 For Figure 3 Schematic structural diagram from another perspective;

[0034] Figure 5 For the adjustment member in Figure 3 Schematic cross-sectional view of the pump valve assembly in the state;

[0035] Figure 6 Schematic structural diagram of the adjusting member state when the pump valve assembly provided in Embodiment 1 of the present invention adjusts the large flow rate in the large flow rate injection mode;

[0036] Figure 7 For Figure 6 Schematic structural diagram from another perspective;

[0037] Figure 8 For the cross-sectional view of the pump valve assembly with the adjusting member in the Figure 6 state;

[0038] Figure 9 Schematic structural diagram of the adjusting member state when the pump valve assembly provided in Embodiment 1 of the present invention performs clearance elimination treatment before reducing the flow rate in the first cavity and second cavity communication mode;

[0039] Figure 10 For Figure 9 Schematic structural diagram from another perspective;

[0040] Figure 11 For the cross-sectional view of the pump valve assembly with the adjusting member in the Figure 9 state;

[0041] Figure 12 Schematic structural diagram of the adjusting member state when the pump valve assembly provided in Embodiment 1 of the present invention adjusts the large flow rate in the small flow rate injection mode;

[0042] Figure 13 For Figure 12 Schematic structural diagram from another perspective;

[0043] Figure 14 For the cross-sectional view of the pump valve assembly with the adjusting member in the Figure 12 state;

[0044] Figure 15 Schematic structural diagram of the filling port opened on the housing in the pump valve assembly provided in Embodiment 1 of the present invention;

[0045] Figure 16 Schematic structural diagram of the pump valve assembly provided in Embodiment 2 of the present invention in the large flow rate injection mode;

[0046] Figure 17 For Figure 16 Schematic structural diagram from another perspective;

[0047] Figure 18 Schematic structural diagram of the pump valve assembly provided in Embodiment 2 of the present invention in the small flow rate injection mode;

[0048] Figure 19 For Figure 18 Schematic structural diagram from another perspective;

[0049] Figure 20 Schematic diagram of the structure of the first cavity and the second cavity in the pump valve assembly provided in the second embodiment of the present invention in a communicating state;

[0050] Figure 21 For Figure 20 Schematic diagram of the structure from another perspective;

[0051] Figure 22 Schematic diagram of the structure of the housing in the pump valve assembly provided in the second embodiment of the present invention;

[0052] Figure 23 For Figure 22 Schematic diagram of the structure from another perspective;

[0053] Figure 24 Schematic diagram of the structure of the adjusting member in the pump valve assembly provided in the second embodiment of the present invention;

[0054] Figure 25 For Figure 24 Schematic diagram of the structure from another perspective;

[0055] Figure 26 Schematic diagram of the structure of the housing of the pump valve assembly provided in the second embodiment of the present invention with a filling port opened thereon.

[0056] Icon: 10 - housing; 101 - first cavity; 102 - second cavity; 103 - adjusting cavity; 104 - filling port; 111 - injection outlet; 112 - injection inlet; 21 - first partition; 211 - first flow channel; 212 - second flow channel; 22 - second partition; 221 - third flow channel; 31 - first sliding member; 32 - second sliding member; 301 - extrusion end; 302 - rod portion; 303 - driving end; 33 - driving member; 331 - avoiding portion; 40 - adjusting member; 401 - adjusting portion; 402 - distribution cavity; 41 - first discharging portion; 42 - second discharging portion; 43 - first feeding portion; 44 - second feeding portion; 45 - first clearance eliminating inlet; 46 - first clearance eliminating outlet; 47 - second clearance eliminating inlet; 48 - second clearance eliminating outlet; 50 - sealing member. Detailed implementation manners

[0057] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0058] Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention.

[0059] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0060] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0061] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0062] According to a first aspect of the present invention, a pump valve assembly is provided, which includes a housing 10, a driving assembly, and an adjusting member 40.

[0063] Embodiment 1

[0064] In this embodiment, as Figures 1 to 15 shown, a first cavity 101, a second cavity 102, and an adjusting cavity 103 are formed inside the housing 10. The first cavity 101 and the second cavity 102 are spaced apart from each other and communicate with each other through the adjusting cavity 103. The volume of the first cavity 101 is larger than that of the second cavity 102, so that the first cavity 101 is used for feeding in the large-flow injection mode described below, and the second cavity 102 is used for feeding in the small-flow injection mode described below; preferably, the heights of the first cavity 101 and the second cavity 102 are the same, and the radial dimension of the first cavity 101 is larger than that of the second cavity 102.

[0065] Specifically, materials are contained in the first cavity 101 and the second cavity 102. An injection port 111 is formed on the cavity wall of the adjusting cavity 103. The injection port 111 is provided at the bottom of the housing 10, so that when injecting the materials, the materials flow out from the injection port 111 under the action of extrusion force and gravity, improving the accuracy of material receiving and also improving the production environment.

[0066] In this embodiment, the housing 10 is formed into a cylindrical structure, allowing it to be quickly inserted into the mixing workbench for plug-and-play operation. Preferably, the housing 10 is made of medical-grade materials such as PC, PE, PP, or PS, thus meeting the mixing requirements of products such as cosmetics and skincare products. It should be noted that industries such as cosmetics and skincare require precise control of batches of materials leaving the factory, preventing adulteration between registered batches, and requiring single-use, individually packaged packaging. In response to the need for disposable, medical-grade packaging for automated cosmetic mixing, in this embodiment, the first cavity 101, the second cavity 102, and the adjustment cavity 103 are all integrated into the housing 10. By actuating the adjustment member 40 disposed in the adjustment cavity 103, the material tank and metering pump are integrated into a single design. This achieves a simple structure, low mold cost, simple operation, and easy factory packaging for shipment, while meeting functional and precision requirements. Furthermore, the pump and valve assembly undergoes disinfection and cleaning after single use or after factory recycling, and can be reused after meeting treatment standards. Therefore, the internal structure of the pump and valve assembly is preferably simple to design for easy cleaning and disinfection, otherwise specialized cleaning tools would be required, increasing costs.

[0067] Preferably, the first cavity 101 and the second cavity 102 form a tubular structure extending in the vertical direction, and the adjusting cavity 103 is formed as a tubular structure extending in the horizontal direction and is arranged below the first cavity 101 and the second cavity 102, so that it is convenient for the driving component to squeeze the material in the first cavity 101 or the second cavity 102 into the adjusting cavity 103 when sliding downward.

[0068] In this embodiment, if Figures 1 to 15 As shown, the drive assembly includes a first sliding member 31 arranged in the first cavity 101 and a second sliding member 32 arranged in the second cavity 102. Specifically, openings are provided at the tops of the first cavity 101 and the second cavity 102. Part of the first sliding member 31 extends into the first cavity 101 from the top of the shell 10. The first sliding member 31 slides in the first cavity 101 along the vertical direction to squeeze the material in the first cavity 101, so that the material enters the second cavity 102 or flows out from the outlet 111; part of the second sliding member 32 extends into the second cavity 102 from the top of the shell 10. The second sliding member 32 slides in the second cavity 102 along the vertical direction to squeeze the material in the second cavity 102, so that the material enters the first cavity 101 or flows out from the outlet 111.

[0069] More specifically, if Figure 2As shown, the first sliding member 31 and the second sliding member 32 are both formed in a strip structure, and both include a driving end 303, a rod portion 302, and a pressing end 301 that are sequentially connected from top to bottom. The driving end 303 and the pressing end 301 are formed in a plate structure, and the rod portion 302 is formed in a rod structure extending along the sliding direction; the pressing end 301 is embedded in the first cavity 101 or the second cavity 102 and is hermetically connected to the cavity wall of the first cavity 101 or the second cavity 102.

[0070] In this embodiment, as Figure 1 shown, the driving assembly further includes a driving member 33. The driving member 33 is formed in a plate structure. The driving member 33 is disposed above the housing 10 and can slide in the vertical direction and the horizontal direction; during the process of the driving member 33 sliding in the vertical direction, it can abut against the first sliding member 31 or the second sliding member 32 and drive the first sliding member 31 or the second sliding member 32 to slide downward so as to extrude the material in the first cavity 101 or the second cavity 102; during the process of the driving member 33 sliding in the horizontal direction, it can be selected to control the first sliding member 31 or the second sliding member 32, that is, the driving member 33 can be adjusted above the first sliding member 31 or above the second sliding member 32, so that the driving member 33 only controls one of the first sliding member 31 and the second sliding member 32 to slide downward.

[0071] It should be noted that the driving member 33 can be controlled to slide in the horizontal direction and in the vertical direction respectively by two driving devices (such as two motors or two cylinders, etc.).

[0072] More specifically, in this embodiment, as Figure 1 shown, the horizontal sliding direction of the driving member 33 is the same as the arrangement direction of the first cavity 101 and the second cavity 102. An avoidance portion 331 is formed on the driving member 33. The avoidance portion 331 is formed as a through hole penetrating the driving member 33. The avoidance portion 331 includes a sliding member avoidance hole and a notch extending from the hole wall of the sliding member avoidance hole to the side wall of the driving member 33. The hole size of the sliding member avoidance hole is not less than the radial size of the driving end 303 and the rod portion 302 on the first sliding member 31 (or the second sliding member 32) to ensure that when the driving member 33 drives the second sliding member 32 (or the first sliding member 31), the first sliding member 31 (or the second sliding member 32) can extend out of the sliding member avoidance hole to avoid interference; the width size of the notch is not less than the radial size of the rod portion 302, so that the driving member 33 can retract in the horizontal direction after completing the downward pressing displacement.

[0073] In this embodiment, as Figures 2 to 15As shown, the adjusting member 40 is disposed in the adjusting cavity 103. The adjusting member 40 is formed into a columnar structure and can rotate in the adjusting cavity 103. The rotation axis of the adjusting member 40 is arranged at an angle with the sliding directions of the first sliding member 31 and the second sliding member 32, preferably perpendicular.

[0074] Specifically, a distribution cavity 402 is formed inside the adjusting member 40. The adjusting member 40 is provided with a first discharge portion 41, a second discharge portion 42, a first feed portion 43, and a second feed portion 44 that are respectively communicated with the distribution cavity 402. The first discharge portion 41 and the second discharge portion 42 can be respectively communicated with the injection outlet 111, and the aperture of the first discharge portion 41 is larger than that of the second discharge portion 42. The first feed portion 43 can be communicated with the first cavity 101, and the second feed portion 44 can be communicated with the second cavity 102.

[0075] Preferably, in this embodiment, as Figures 2 to 15 shown, the first discharge portion 41, the second discharge portion 42, the first feed portion 43, and the second feed portion 44 are all formed by inward depressions on the outer wall of the adjusting member 40, so that there are no protruding structures on the outer wall of the part of the adjusting member 40 disposed in the adjusting cavity 103, thereby enabling the outer wall of the adjusting member 40 to fit with the cavity wall of the adjusting cavity 103, avoiding material overflow, contamination, and waste, and also ensuring precise control when the material is injected.

[0076] In this embodiment, as Figure 1 、 Figures 3 to 15 shown, the adjusting member 40 is rotatably connected to the housing 10. One end of the adjusting member 40 in the axial direction extends outside the housing 10 to form an adjusting portion 401, so as to facilitate the operator to manually turn or the driving device to push the adjusting portion 401 to trigger the rotation of the adjusting member 40 relative to the housing 10.

[0077] In this embodiment, as Figures 1 to 15 shown, the first discharge portion 41, the second discharge portion 42, the first feed portion 43, and the second feed portion 44 all extend along the radial direction of the adjusting member 40 and are formed into tubular structures, so that the first discharge portion 41, the second discharge portion 42, the first feed portion 43, and the second feed portion 44 are respectively arranged at an angle with the distribution cavity 402.

[0078] In this embodiment, the pump valve assembly includes a large-flow injection mode and a small-flow injection mode. When the adjusting member 40 is rotated to open the large-flow injection mode, referring to Figures 6 to 8 shown, the first cavity 101, the first feed portion 43, the distribution cavity 402, the first discharge portion 41, and the injection outlet 111 are communicated to achieve large-flow injection; when the adjusting member 40 is rotated to open the small-flow injection mode, referring to Figures 12 to 14As shown, the second cavity 102, the second feeding part 44, the distribution cavity 402, the second discharging part 42, and the injection outlet 111 are communicated to achieve small-flow injection, so as to meet the requirements of large-flow and small-flow material injection and improve the accuracy of product preparation.

[0079] Furthermore, in this embodiment, as Figures 3 to 14 shown, the adjusting member 40 is further provided with a first clearance elimination inlet 45, a first clearance elimination outlet 46, a second clearance elimination inlet 47, and a second clearance elimination outlet 48 that are respectively communicated with the distribution cavity 402; the first clearance elimination inlet 45 and the second clearance elimination outlet 48 can be respectively communicated with the first cavity 101, and the second clearance elimination inlet 47 and the first clearance elimination outlet 46 can be respectively communicated with the second cavity 102, so as to achieve clearance elimination before the pump valve assembly is adjusted to the large-flow mode or the small-flow mode, avoid air bubbles in the material flowing out from the injection outlet 111, thereby ensuring that the downward sliding distance of the driving assembly is adapted to the mass or volume of the material to be extruded, ensuring the control accuracy of the pump valve assembly, and improving the product quality.

[0080] The pump valve assembly further includes a communication mode between the first cavity 101 and the second cavity 102 for clearance elimination, that is, in this embodiment, clearance elimination can be achieved when the first cavity 101 and the second cavity 102 are communicated. Specifically, when small-flow injection of the material is required, before adjusting to the small-flow injection mode, the treatment of clearance elimination is referred to Figures 9 to 11 shown, the driving member 33 pushes the second sliding member 32 to move downward, and the first cavity 101 and the second cavity 102 can be sequentially communicated via the second clearance elimination inlet 47, the distribution cavity 402, and the second clearance elimination outlet 48, and can also be sequentially communicated via the second clearance elimination inlet 47, the distribution cavity 402, and the second discharging part 42, so that the material in the second cavity 102 enters the first cavity 101. At this time, the first sliding member 31 has a tendency to move upward under the action of the material push. In this way, during the process of the material in the second cavity 102 entering the first cavity 101, the inside of the adjusting member 40 can be filled with the material. At this time, the adjusting member 40 is rotated to the small-flow injection mode, and as long as the second sliding member 32 moves downward, the bubble-free material inside will be extruded from the injection outlet 111 in a small flow.

[0081] Similarly, when large-flow injection of the material is required, before adjusting to the large-flow injection mode, the treatment of clearance elimination is referred to Figures 3 to 5As shown, the driving member 33 pushes the first sliding member 31 to move downward, and the second cavity 102 and the first cavity 101 can be sequentially communicated via the first clearance elimination inlet 45, the distribution cavity 402, and the first clearance elimination outlet 46, or can be sequentially communicated via the first clearance elimination inlet 45, the distribution cavity 402, and the first discharging portion 41, so that the material in the first cavity 101 enters the second cavity 102. At this time, the second sliding member 32 has a tendency to move upward under the pushing of the material. In this way, during the process of the material in the first cavity 101 entering the second cavity 102, the inside of the adjusting member 40 can be filled with the material. At this time, the adjusting member 40 is rotated to the large flow rate injection mode, and as long as the first sliding member 31 moves downward, the bubble-free material inside will be extruded from the injection outlet 111 at a large flow rate.

[0082] Further, in this embodiment, as Figure 5 , Figure 7 and Figure 9 shown, the axis of the first discharging portion 41 and the axis of the second discharging portion 42 are arranged at an angle, for example, arranged at 90 degrees; as Figures 3 to 5 shown, the first discharging portion 41, the first clearance elimination inlet 45, and the first clearance elimination outlet 46 are arranged on the same side of the distribution cavity 402; as Figures 9 to 11 shown, the second discharging portion 42, the second clearance elimination inlet 47, and the second clearance elimination outlet 48 are arranged on the same side of the distribution cavity 402, so as to ensure that the clearances before adjusting to the large flow rate mode and the clearances before adjusting to the small flow rate mode have accurate hole openings corresponding to each other, ensure effective clearance elimination, and improve the reliability of accurately injecting the material.

[0083] Furthermore, in this embodiment, as Figure 5 and Figure 11 shown, the first clearance elimination inlet 45 and the first feeding portion 43 are coaxially arranged, that is, the first clearance elimination inlet 45 and the first feeding portion 43 are arranged opposite to each other in the radial direction of the adjusting member 40, and the second clearance elimination inlet 47 and the second feeding portion 44 are coaxially arranged, that is, the second clearance elimination inlet 47 and the second feeding portion 44 are arranged opposite to each other in the radial direction of the adjusting member 40, so that by rotating the adjusting member 40 by ninety degrees, the switching of four modes (large flow rate, small flow rate, clearance elimination before large flow rate, and clearance elimination before small flow rate) can be realized, ensuring accurate control and convenient operation.

[0084] In addition, in this embodiment, as Figure 11 and Figure 15As shown, the adjusting member 40 is further provided with an injection port 112 communicating with the distribution chamber 402. The injection port 112 can be opened at one end of the adjusting member 40 away from the adjusting portion 401. A filling port 104 communicating with the injection port 112 is opened on the housing 10. The filling port 104 can be a through-hole structure penetrating the wall of the housing 10 or a tubular structure protruding from the outer wall of the housing 10. In this way, the distribution chamber 402 is sequentially communicated with the outside of the housing 10 via the injection port 112 and the filling port 104, so that materials can be replenished into the first chamber 101 and / or the second chamber 102 to meet the requirements of dispensing. Further, the pump valve assembly further includes a seal 50 for blocking the filling port 104. The seal 50 can be a sealing plug or a sealing cover, as long as it can block the filling port 104 tightly to avoid internal material contamination when materials do not need to be replenished.

[0085] It should be noted that, in this embodiment, Figure 5 , Figure 8 , Figure 11 and Figure 14 the arrows in indicate the flow direction of the materials. It should be further noted that when performing clearance elimination treatment, only part of the materials in the first chamber 101 or the second chamber 102 need to be extruded out of the first chamber 101 or the second chamber 102.

[0086] Embodiment 2

[0087] In this embodiment, as Figures 16 to 23 shown, a first chamber 101, a second chamber 102 and an adjusting chamber 103 are formed inside the housing 10. The first chamber 101 and the second chamber 102 are arranged at intervals and communicated via the adjusting chamber 103. The volume of the first chamber 101 is larger than that of the second chamber 102, so that the first chamber 101 is used for feeding in the large-flow injection mode described below, and the second chamber 102 is used for feeding in the small-flow injection mode described below. Preferably, the first chamber 101 and the second chamber 102 have the same height, and the radial dimension of the first chamber 101 is larger than that of the second chamber 102.

[0088] Specifically, materials are contained in the first chamber 101 and the second chamber 102. An injection outlet 111 is opened on the wall of the adjusting chamber 103. The injection outlet 111 is preferably arranged at the bottom of the housing 10, so that when injecting materials, the materials flow out from the injection outlet 111 under the action of extrusion force and gravity, improving the accuracy of material receiving and also improving the production environment.

[0089] In this embodiment, the housing 10 is formed into a cylindrical structure, enabling it to be quickly inserted onto the dispensing workbench to achieve plug-and-play. Preferably, the housing 10 is made of materials such as medical-grade PC, PE, PP, or PS, thus meeting the dispensing requirements of products such as cosmetics or skin care products. It should be noted that industries such as cosmetics and skin care need to precisely control the batches of ex-factory materials, and there should be no mixing between the recorded batches, and they need to be independently packaged once. Combining the requirements of disposable medical-grade packaging for automated cosmetics dispensing, in this embodiment, the first cavity 101, the second cavity 102, and the adjustment cavity 103 are all integrated on the housing 10. By driving the adjusting member 40 disposed in the adjustment cavity 103, an integrated design of the material tank and the metering pump is achieved. In this way, while meeting the functions and accuracy, the structure is simple, the cost after mold opening is low, the operation of the whole machine is simple, and it is easy to ship after being encapsulated in the factory. In addition, the pump valve assembly is disinfected and cleaned after being used once or recycled by the manufacturer. After passing the treatment standard, it can be reused. Therefore, the internal structure of the pump valve assembly is preferably designed simply to facilitate cleaning and disinfection, otherwise special cleaning tools need to be designed, increasing the cost.

[0090] Furthermore, in a preferred embodiment, the first cavity 101 and the second cavity 102 form a tubular structure extending in the vertical direction, and the adjustment cavity 103 is formed into a tubular structure extending in the horizontal direction and is disposed below the first cavity 101 and the second cavity 102, so as to facilitate the driving assembly to squeeze the material in the first cavity 101 or the second cavity 102 into the adjustment cavity 103 when sliding downward.

[0091] In this embodiment, as Figures 16 to 21 shown, the driving assembly includes a first sliding member 31 disposed in the first cavity 101 and a second sliding member 32 disposed in the second cavity 102. The first sliding member 31 is sealingly connected to the first cavity 101, and the second sliding member 32 is sealingly connected to the second cavity 102. The first sliding member 31 is used to squeeze the material in the first cavity 101, and the second sliding member 32 is used to squeeze the material in the second cavity 102. The structure of the driving assembly in this embodiment can be the same as that of the driving assembly in Embodiment 1 described above, and will not be repeated here.

[0092] In this embodiment, as Figures 16 to 26 shown, the adjusting member 40 is disposed in the adjustment cavity 103. The adjusting member 40 is formed into a columnar structure and can rotate in the adjustment cavity 103, that is, the adjusting member 40 is rotatably connected to the housing 10. The rotation axis of the adjusting member 40 is disposed at an angle to the sliding direction of the first sliding member 31 and the second sliding member 32, preferably perpendicular.

[0093] Specifically, as Figures 16 to 21 、 Figure 24 and Figure 25As shown, a distribution cavity 402 is formed inside the adjusting member 40. The adjusting member 40 is provided with a first discharge portion 41, a second discharge portion 42, a first feed portion 43, and a second feed portion 44 that are respectively communicated with the distribution cavity 402. The first discharge portion 41 and the second discharge portion 42 can be respectively communicated with the injection outlet 111, and the aperture of the first discharge portion 41 is larger than that of the second discharge portion 42. The first feed portion 43 can be communicated with the first cavity 101, and the second feed portion 44 can be communicated with the second cavity 102.

[0094] Preferably, in this embodiment, as Figure 24 and Figure 25 shown, the first discharge portion 41, the second discharge portion 42, the first feed portion 43, and the second feed portion 44 are all formed by inward depressions on the outer wall of the adjusting member 40, so that there are no protruding structures on the outer wall of the part of the adjusting member 40 disposed in the adjusting cavity 103, thereby enabling the outer wall of the adjusting member 40 to fit against the cavity wall of the adjusting cavity 103, avoiding material overflow, contamination, and waste, and also ensuring precise control during material injection.

[0095] In this embodiment, as Figures 16 to 21 shown, the adjusting member 40 is rotatably connected to the housing 10. One end of the adjusting member 40 in the axial direction extends outside the housing 10 to form an adjusting portion 401, so as to facilitate manual screwing by an operator or driving a driving device (such as a push rod, etc.) to push the adjusting portion 401 to trigger the rotation of the adjusting member 40 relative to the housing 10.

[0096] In a preferred embodiment, as Figures 16 to 26 shown, the first discharge portion 41, the second discharge portion 42, the first feed portion 43, and the second feed portion 44 all extend along the radial direction of the adjusting member 40 and are formed into a tubular structure, such that the first discharge portion 41, the second discharge portion 42, the first feed portion 43, and the second feed portion 44 are respectively arranged at an angle to the distribution cavity 402.

[0097] In this embodiment, the pump valve assembly includes a large-flow injection mode, a small-flow injection mode, and a communication mode between the first cavity 101 and the second cavity 102. The communication mode between the first cavity 101 and the second cavity 102 is used for clearance elimination before adjusting to the large-flow injection mode or the small-flow injection mode.

[0098] Specifically, when rotating the adjusting member 40 to turn on the large-flow injection mode, referring to Figure 16 and Figure 17 shown, the first cavity 101, the first feed portion 43, the distribution cavity 402, the first discharge portion 41, and the injection outlet 111 are communicated to achieve large-flow injection; when rotating the adjusting member 40 to turn on the small-flow injection mode, referring to Figure 18 and Figure 19As shown, the second cavity 102, the second feeding part 44, the distribution cavity 402, the second discharging part 42 and the injection outlet 111 are communicated to achieve small-flow injection, so as to meet the requirements of large-flow and small-flow material injection and improve the accuracy of product dispensing.

[0099] In addition, in this embodiment, when the mode of communicating the first cavity 101 and the second cavity 102 is opened in this way, refer to Figure 20 and Figure 21 As shown, the first cavity 101, the first feeding part 43, the distribution cavity 402, the second feeding part 44 and the second cavity 102 are communicated, and the first discharging part 41 and the second discharging part 42 are blocked by the housing 10. At this time, when the small-flow injection mode needs to be opened subsequently, the second sliding part 32 can be driven to move downward to extrude part of the material in the second cavity 102 to achieve clearance elimination before the small-flow injection mode is opened; when the large-flow injection mode needs to be opened subsequently, the first sliding part 31 can be driven to move downward to extrude part of the material in the first cavity 101 to achieve clearance elimination before the large-flow injection mode is opened, thereby improving the accuracy of product dispensing.

[0100] It should be noted that the principle of clearance elimination in this embodiment is the same as that in Embodiment 1. However, compared with Embodiment 1, the structure of the adjusting part 40 is optimized in this embodiment, and the number of openings on the adjusting part 40 is reduced. Compared with Embodiment 1, it has the advantages of convenient adjustment, material saving, and reduction of the mass or volume of the material that cannot be extruded in the pump valve assembly.

[0101] Furthermore, in this embodiment, as Figures 16 to 23 shown, a first partition 21 is provided between the first cavity 101 and the adjusting cavity 103. The first partition 21 is provided with an independently arranged first flow channel 211 and a second flow channel 212, that is, the first flow channel 211 and the second flow channel 212 are not communicated; a second partition 22 is provided between the second cavity 102 and the adjusting cavity 103. The second partition 22 is provided with a third flow channel 221; wherein, the first partition 21 and the second partition 22 can be integrally formed with the housing 10 or can form a split structure and be assembled by means of clamping or the like.

[0102] Specifically, in the large-flow injection mode, the first discharge part 41 needs to be communicated with the injection outlet 111, and at this time, the first feed part 43 is communicated with the first flow channel 211; in the small-flow injection mode, the second discharge part 42 needs to be communicated with the injection outlet 111, and at this time, the second feed part 44 is communicated with the third flow channel 221; when clearance elimination treatment is required, the first cavity 101 and the second cavity 102 need to be communicated, and at this time, one of the first discharge part 41 and the second discharge part 42 is communicated with the second flow channel 212, and the other of the first discharge part 41 and the second discharge part 42 is blocked by the housing 10, and the second feed part 44 is communicated with the third flow channel 221. It should be noted that Figure 20 and Figure 21 The structure shown is that the first discharge part 41 is communicated with the second flow channel 212 and the second discharge part 42 is blocked by the housing 10, but the pump valve assembly structure in which the second discharge part 42 is communicated with the second flow channel 212 and the first discharge part 41 is blocked by the housing 10 can also achieve the communication between the first cavity 101 and the second cavity 102.

[0103] It should be noted that, compared with the first embodiment, the structure of the housing 10 in this embodiment is relatively more complex, but the clearance elimination treatment is more convenient. Specifically, in the first embodiment, the adjusting member 40 needs to be adjusted to four states, and in the second embodiment, only the adjusting member 40 needs to be adjusted to three states. That is, in the second embodiment, for the clearance elimination treatment before large-flow and small-flow injection, the position of the adjusting member 40 relative to the housing 10 is the same.

[0104] Furthermore, in this embodiment, as Figures 16 to 23 shown, both the first flow channel 211 and the second flow channel 212 are formed as hole-like structures; the third flow channel 221 is formed as an arc-shaped space arranged around the outer wall of the adjusting member 40, and the second feed part 44 can swing along the extension track of the arc-shaped space, so as to ensure that in the small-flow injection mode and when clearance elimination treatment is required, the second feed part 44 can be in a communicating state with the second cavity 102. Specifically, the third flow channel 221 and the injection outlet 111 are communicated through the second feed part 44, the distribution cavity 402 and the first discharge part 41 (or the second discharge part 42) to meet the clearance elimination treatment, and the third flow channel 221 and the injection outlet 111 are communicated through the second feed part 44, the distribution cavity 402 and the second discharge part 42 to meet the function of small-flow injection, which is beneficial to reducing the passages on the adjusting member 40.

[0105] Even further, in this embodiment, as Figures 16 to 23As shown, the outer wall of the adjusting member 40 is formed into a stepped shaft structure including a first stepped portion and a second stepped portion. The radial dimension of the first stepped portion is greater than that of the second stepped portion. The first discharge portion 41, the second discharge portion 42, and the first feed portion 43 are disposed on the first stepped portion, and the second feed portion 44 is disposed on the second stepped portion. The shape of the adjusting cavity 103 is adapted to the shape of the outer wall of the adjusting member 40, so that the arrangements of the first flow channel 211, the second flow channel 212, and the third flow channel 221 can meet the requirements of the material distribution in the first cavity 101 and the second cavity 102 and the injection of the material in large and small flow rates in this embodiment.

[0106] In addition, in this embodiment, as Figures 24 to 26 shown, the adjusting member 40 is further provided with an injection port 112 communicating with the distribution cavity 402. The injection port 112 can be opened at one end of the adjusting member 40 away from the adjusting portion 401. A filling port 104 communicating with the injection port 112 is opened on the housing 10. The filling port 104 can be a through-hole structure penetrating the wall of the housing 10 or a tubular structure protruding from the outer wall of the housing 10. In this way, the distribution cavity 402 is sequentially communicated with the outside of the housing 10 via the injection port 112 and the filling port 104, so that the material can be replenished into the first cavity 101 and / or the second cavity 102 to meet the requirements of dispensing. Further, the pump valve assembly further includes a sealing member 50 for plugging the filling port 104. The sealing member 50 can be a sealing plug or a sealing cover, as long as it can tightly plug the filling port 104 to prevent internal material contamination when the material does not need to be replenished.

[0107] According to the pump valve assembly of the present invention, a first cavity, a second cavity, and an adjusting cavity are formed inside the housing. The first cavity and the second cavity are communicated via the adjusting cavity, and the volume of the first cavity is greater than that of the second cavity. Materials are contained in the first cavity and the second cavity, and an injection outlet is opened on the cavity wall of the adjusting cavity; the driving assembly includes a first sliding member disposed in the first cavity and a second sliding member disposed in the second cavity; the adjusting member is disposed in the adjusting cavity, and a distribution cavity is formed inside the adjusting member. The adjusting member is provided with a first discharge portion, a second discharge portion, a first feed portion, and a second feed portion that are respectively communicated with the distribution cavity; the first discharge portion and the second discharge portion can be respectively communicated with the injection outlet, and the aperture of the first discharge portion is greater than that of the second discharge portion; the first feed portion can be communicated with the first cavity, and the second feed portion can be communicated with the second cavity. In this way, the distribution of the material in the first cavity and the second cavity and / or the injection of the material in large and small flow rates are realized through the cooperation of the adjusting member and the driving assembly, which is time-saving, labor-saving, easy to operate, and precisely controlled, and avoids generating bubbles.

[0108] The second aspect of the present invention provides a dispensing device, including the pump valve assembly as described above. The pump valve assembly has the advantages of saving time and effort, being easy to operate, having precise control, and avoiding the generation of bubbles, thereby improving the production efficiency of the dispensing device and the quality of the products produced by the dispensing device.

[0109] Finally, it should be noted that the above-described embodiments are only specific embodiments of the present application, used to illustrate the technical solutions of the present application, rather than limiting it. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the art within the technical scope disclosed by the present application can still modify the technical solutions recorded in the foregoing embodiments or easily conceive of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims

1. A pump valve assembly, characterized in that, The pump valve assembly includes: A housing, inside which a first cavity, a second cavity and an adjustment cavity are formed. The first cavity and the second cavity communicate with each other via the adjustment cavity, and the volume of the first cavity is larger than that of the second cavity. Materials are contained in the first cavity and the second cavity, and an injection outlet is formed on the cavity wall of the adjustment cavity; A driving assembly, including a first sliding member disposed in the first cavity and a second sliding member disposed in the second cavity; An adjustment member, disposed in the adjustment cavity. A distribution cavity is formed inside the adjustment member, and a first discharge portion, a second discharge portion, a first feed portion and a second feed portion that communicate with the distribution cavity are provided on the adjustment member. The first discharge portion and the second discharge portion can respectively communicate with the injection outlet, and the aperture of the first discharge portion is larger than that of the second discharge portion. The first feed portion can communicate with the first cavity, and the second feed portion can communicate with the second cavity.

2. The pump valve assembly according to claim 1, characterized in that, The adjustment member is further provided with a first clearance elimination inlet, a first clearance elimination outlet, a second clearance elimination inlet and a second clearance elimination outlet that respectively communicate with the distribution cavity; The first clearance elimination inlet and the second clearance elimination outlet can respectively communicate with the first cavity, and the second clearance elimination inlet and the first clearance elimination outlet can respectively communicate with the second cavity; The first cavity and the second cavity can communicate with each other in sequence via the first clearance elimination inlet, the distribution cavity and the first clearance elimination outlet, so that the material in the first cavity enters the second cavity; or the first cavity and the second cavity can communicate with each other in sequence via the second clearance elimination inlet, the distribution cavity and the second clearance elimination outlet, so that the material in the second cavity enters the first cavity.

3. The pump valve assembly according to claim 2, wherein, The axis of the first discharge portion is arranged at an angle with the axis of the second discharge portion; The first discharge portion, the first clearance elimination inlet and the first clearance elimination outlet are arranged on the same side of the distribution cavity; The second discharge portion, the second clearance elimination inlet and the second clearance elimination outlet are arranged on the same side of the distribution cavity.

4. The pump valve assembly according to claim 2, wherein, The first clearance elimination inlet and the first feed portion are coaxially arranged, and the second clearance elimination inlet and the second feed portion are coaxially arranged.

5. The pump valve assembly according to claim 1, wherein A first partition member is arranged between the first cavity and the adjustment cavity, and an independent first flow channel and a second flow channel are formed on the first partition member; A second partition member is arranged between the second cavity and the adjustment cavity, and a third flow channel is formed on the second partition member; When the first discharge portion communicates with the injection outlet, the first feed portion communicates with the first flow channel; when the second discharge portion communicates with the injection outlet, the second feed portion communicates with the third flow channel; when the first cavity and the second cavity communicate with each other, one of the first discharge portion and the second discharge portion communicates with the second flow channel, the other of the first discharge portion and the second discharge portion is blocked by the housing, and the second feed portion communicates with the third flow channel.

6. The pump valve assembly according to claim 5, wherein, The first flow channel and the second flow channel are both formed as hole-like structures; the third flow channel is formed as an arc-shaped space arranged around the outer wall of the adjusting member, and the second feeding portion can swing along the extension trajectory of the arc-shaped space.

7. The pump valve assembly according to claim 5, characterized in that, The outer wall of the adjusting member is formed as a stepped shaft structure including a first stepped portion and a second stepped portion. The radial dimension of the first stepped portion is greater than that of the second stepped portion. The first discharging portion, the second discharging portion, and the first feeding portion are arranged on the first stepped portion, and the second feeding portion is arranged on the second stepped portion.

8. The pump valve assembly according to any one of claims 1 to 7, characterized in that, The adjusting member is further provided with an injection port communicated with the distribution cavity, and the housing is provided with a filling port communicated with the injection port; The pump valve assembly further includes: A seal member for plugging the filling port.

9. The pump valve assembly according to any one of claims 1 to 7, characterized in that, The adjusting member is rotatably connected to the housing, and one end of the adjusting member in the axial direction extends out of the housing to form an adjusting portion; the first discharging portion, the second discharging portion, the first feeding portion, and the second feeding portion all extend along the radial direction of the adjusting member; And / or, the first discharging portion, the second discharging portion, the first feeding portion, and the second feeding portion are all formed by inward depression from the outer wall of the adjusting member.

10. A dispensing device, characterized in that, Including the pump valve assembly according to any one of claims 1 to 9.

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