A filling valve structure

Abstract

The present invention relates to the technical field of material filling, and discloses a filling valve structure, including a valve sleeve, a valve core body arranged in the valve sleeve, the valve core body is rotatably connected with the valve sleeve, the upper end of the valve core body is provided with a valve stem extending out of the valve sleeve, the upper end side of the valve core body is provided with a first feed port, the lower end surface of the valve core body is provided with an eccentrically distributed first discharge port, a first feed channel connecting the first feed port and the first discharge port is provided in the valve core body, a first feed pipe connected with the first feed port is provided on the side of the valve sleeve, a first discharge through hole is provided at the lower end of the valve sleeve and the corresponding position of the first discharge port, and a rotary drive mechanism for driving the valve core body to rotate is provided on the valve stem; when working, the lower end of the valve core body abuts against the lower end of the valve sleeve. The present invention has the beneficial effects of compact and stable structure, not easy to be blocked, and smoother discharge.

Description

Technical Field

[0001] The invention relates to the technical field of material filling, and in particular to a filling valve structure. Background Art

[0002] The filling valve is a commonly used valve component in the field of liquid packaging equipment. The filling valve can achieve quantitative filling of liquids. The filling valves currently used in filling machines usually control the on-off of liquid materials by the axial movement of the valve core rod in the valve sleeve, thereby achieving quantitative filling. However, for viscous materials or liquid materials containing solid particles (for example: dairy products containing fruit particles), when the valve core rod in the filling valve moves axially, the viscous materials or solid particles are easily stuck at the outlet, thereby affecting the discharge or causing inaccurate quantitative filling. Summary of the invention

[0003] In order to solve the above problems existing in the filling valve in the prior art, the present invention provides a filling valve structure which has a compact and stable structure, is not easy to be blocked, and has more stable and smooth material discharge.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] A filling valve structure comprises a valve sleeve and a valve core body arranged in the valve sleeve, the valve core body is rotatably connected to the valve sleeve, the upper end of the valve core body is provided with a valve stem extending out of the valve sleeve, the upper end side of the valve core body is provided with a first feed port, the lower end surface of the valve core body is provided with an eccentrically distributed first discharge port, a first feed channel connecting the first feed port and the first discharge port is provided in the valve core body, a first feed pipe connected to the first feed port is provided on the side of the valve sleeve, a first discharge through hole is provided at the lower end of the valve sleeve and corresponding to the first discharge port, and a rotating drive mechanism for driving the valve core body to rotate is provided on the valve stem; when working, the lower end of the valve core body abuts against the lower end of the valve sleeve. When the first discharge port is connected to the first discharge through hole, the filling valve is in an open state, and the liquid material flows out from the first feed pipe through the first feed port, the first feed channel, the first discharge port, and the first discharge through hole in sequence; the valve core body is driven by the rotary drive mechanism to rotate an angle so that the first discharge port and the first discharge through hole are completely misaligned, and the first discharge port is closed, the filling valve is in a closed state, and the liquid material cannot flow out; the filling valve is opened and closed in this way, and the first discharge port and the first discharge through hole are not easily blocked, even if the liquid material contains solid particles (such as pulp), the solid particles can be cut off when the valve core body rotates, thereby keeping the discharge stable and smooth.

[0006] Preferably, an annular groove is provided at a position corresponding to the first feed pipe on the side of the valve core body, and the first feed port is connected to the annular groove. The first feed pipe is connected to the annular groove, and the annular groove is connected to the first feed port, so as to ensure that the liquid material in the first feed pipe can stably enter the first feed port.

[0007] Preferably, sealing elements are provided on both sides of the annular groove on the side surface of the valve core body, and the sealing elements play a sealing role to prevent leakage of liquid materials.

[0008] Preferably, the side of the valve core body is further provided with a second feed port, the lower end of the valve core body is provided with an eccentrically distributed second discharge port, the valve core body is provided with a second feed channel connecting the second feed port and the second discharge port, the lower end of the valve sleeve is provided with a second discharge through hole at a position corresponding to the second discharge port; the side of the valve sleeve is provided with a second feed pipe connected with the second feed port. The second feed port is connected to the second feed pipe, so as to realize the simultaneous feeding of two different liquid materials.

[0009] Preferably, the second discharge port is symmetrically distributed with respect to the center of the first discharge port. When the first discharge port is connected with the first discharge through hole, the second discharge port is also connected with the second discharge through hole; when the valve core body rotates 90 degrees, the first discharge port is completely misaligned with the first discharge through hole, and the second discharge port is completely misaligned with the second discharge through hole, so that the two liquid materials in the filling valve are closed at the same time.

[0010] Preferably, a connecting plate is provided at the upper end of the valve stem, the valve stem passes through the connecting plate to form a sliding connection, a stopper is provided at the upper end of the valve stem, a limit retaining ring is provided on the valve stem at the lower side of the connecting plate, and an elastic element is provided on the valve stem between the limit retaining ring and the connecting plate. The pressure of the elastic element keeps the lower end of the valve core body and the lower end of the valve sleeve in elastic contact at all times, so that leakage is not likely to occur when the filling valve is closed.

[0011] Preferably, the rotary drive mechanism comprises a driven gear and a rack, the driven gear and the valve stem are circumferentially limited and axially slidably connected, a sleeve is provided at both ends of the driven gear on the valve stem, the upper end of the compression spring abuts against the sleeve, and the lower end of the compression spring abuts against the limit retaining ring; the rack meshes with the driven gear, and a driving component for driving the displacement of the rack is provided on the connecting plate. The driven gear is rotated by the driving component to drive the movement of the rack, and then the valve core body is driven to rotate, so as to realize the opening and closing of the filling valve, and the structure is simple and the stability is good.

[0012] Preferably, the driving assembly comprises a driving motor fixed on the connecting plate, and the shaft end of the driving motor is provided with a driving gear meshing with the rack. The driving motor realizes the reciprocating movement of the rack through the reciprocating rotation of the driving gear, thereby controlling the rotation of the valve core body.

[0013] Preferably, an annular cavity is provided between the inner side of the upper end of the valve sleeve and the valve stem, a flushing pipe communicating with the annular cavity is provided on the outer side of the valve sleeve, and a lifting mechanism is connected to the connecting plate. When the filling valve is used, the connecting plate is driven to rise by the lifting mechanism, and the connecting plate pulls the valve stem and the valve core body to rise, so that the first feed port and the second feed port both enter the annular cavity, and the water in the flushing pipe enters the annular cavity and is discharged through the first feed channel and the second feed channel to achieve cleaning.

[0014] Therefore, the present invention has the beneficial effects of compact and stable structure, not easy to be blocked, and smoother material discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 for Figure 1 Schematic diagram of a local explosion.

[0017] Figure 3 This is a cross-sectional view of the filling valve in the open state.

[0018] Figure 4 This is a cross-sectional view of the filling valve in the cleaning state.

[0019] Figure 5 This is a schematic diagram of the positions of the first discharge port and the second discharge port when the filling valve is opened.

[0020] Figure 6 This is a schematic diagram of the positions of the first discharge port and the second discharge port when the filling valve is closed.

[0021] Figure 7 for Figure 3 A partial enlarged schematic diagram in the middle.

[0022] Figure 8 for Figure 4 A partial enlarged schematic diagram of point B in the middle.

[0023] Fig. 9 This is a schematic diagram of the installation and use status of the present invention.

[0024] In the figure: valve sleeve 1, first discharge hole 100, second discharge hole 101, annular cavity 102, valve core body 2, first feed port 20, first discharge port 21, first feed channel 22, second feed port 23, second discharge port 24, second feed channel 25, annular groove 200, sealing element 201, valve stem 3, limit member 30, first feed pipe 4, rotary drive mechanism 5, driven gear 50, rack 51, sleeve 52, second feed pipe 6, connecting plate 7, drive assembly 70, drive motor 700, driving gear 701, limit retaining ring 8, compression spring 9, flushing pipe 10, lifting mechanism 11, motor 110, drive arm 111, connecting arm 112, slide rod 113, connecting seat 114, frame 12. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0026] like Figure 1-Figure 9 A filling valve structure is shown, comprising a valve sleeve 1, a valve core body 2 arranged in the valve sleeve, the valve core body is rotatably connected to the valve sleeve, the upper end of the valve core body 2 is provided with a valve stem 3 extending out of the valve sleeve, the valve core body 2 and the valve stem 3 in this embodiment are an integrated structure, the upper end side of the valve core body 2 is provided with a first feed port 20, the lower end surface of the valve core body is provided with an eccentrically distributed first discharge port 21, a first feed channel 22 connecting the first feed port and the first discharge port is provided in the valve core body, a first feed pipe 4 connected to the first feed port is provided on the side of the valve sleeve 1, a first discharge through hole 100 is provided at the lower end of the valve sleeve 1 corresponding to the first discharge port, and a rotating drive mechanism 5 for driving the valve core body to rotate is provided on the valve stem; when working, the lower end of the valve core body 2 abuts against the lower end of the valve sleeve.

[0027] A second feed port 23 is also provided on the side of the valve core body 2, an eccentrically distributed second discharge port 24 is provided at the lower end of the valve core body, the second discharge port is symmetrically distributed with the center of the first discharge port, a second feed channel 25 connecting the second feed port and the second discharge port is provided in the valve core body, a second discharge through hole 101 is provided at the lower end of the valve sleeve 1 corresponding to the second discharge port, and a second feed pipe 6 connected to the second feed port is provided on the side of the valve sleeve 1; Figure 7 As shown, an annular groove 200 is provided on the side of the valve core body 2 corresponding to the first feed pipe, the first feed port 20 is connected to the annular groove, and sealing elements 201 are provided on both sides of the annular groove on the side of the valve core body 2, and the sealing elements are sealing rings; similarly, an annular groove is also provided on the side of the valve core body corresponding to the second feed pipe, and the second feed port is connected to the corresponding annular groove.

[0028] A connecting plate 7 is provided at the upper end of the valve stem 3, and the valve stem passes through the connecting plate to form a sliding connection. A stopper 30 is provided at the upper end of the valve stem 3, and a limit retaining ring 8 is provided on the valve stem 3 at the lower side of the connecting plate 7. An elastic element 9 is provided on the valve stem between the limit retaining ring and the connecting plate. The elastic element in this embodiment is a compression spring; Figure 3 and Fig. 9 As shown, the rotary drive mechanism 5 includes a driven gear 50 and a rack 51. The driven gear and the valve stem are circumferentially limited and axially slidably connected. Sleeves 52 are provided at both ends of the driven gear on the valve stem 3. The upper end of the compression spring abuts against the sliding sleeve, and the lower end of the compression spring abuts against the limit retaining ring; the rack 51 is meshed with the driven gear 50, and a driving assembly 70 for driving the rack displacement is provided on the connecting plate 7. The driving assembly 70 includes a driving motor 700 fixed on the connecting plate, and a driving gear 701 meshed with the rack is provided at the shaft end of the driving motor.

[0029] like Figure 3 and Figure 4 As shown, an annular cavity 102 is provided between the inner side of the upper end of the valve sleeve 1 and the valve stem, a flushing pipe 10 communicating with the annular cavity 102 is provided on the outer side of the valve sleeve 1, and a lifting mechanism 11 is connected to the connecting plate 7. Fig. 9 As shown, the lifting mechanism 11 includes a motor 110, a driving arm 111, and a connecting arm 112. The connecting plate 7 is connected to the frame 12 through a sliding rod 113. A connecting seat 114 is provided on the connecting plate. The lower end of the connecting arm is rotatably connected to the connecting seat. The upper end of the connecting arm is connected to the motor through the driving arm. The motor rotates through the driving arm and the connecting arm to drive the connecting plate to rise and fall. When the connecting rod rises, the connecting plate pulls the valve stem and the valve core body to rise, so that the first feed port and the second feed port both enter the annular cavity. After the water flow in the flushing pipe enters the annular cavity, it is discharged through the first feed channel and the second feed channel to achieve cleaning. In order to increase the stability of the rotation and axial displacement of the valve stem, bearings are provided between the valve stem and the shaft sleeve, and between the valve stem and the connecting plate.

[0030] In conjunction with the accompanying drawings, the principles of the present invention are as follows: Figure 3 , Figure 5 and Fig. 9 As shown, the first discharge port is connected to the first discharge through hole, and the second discharge port is connected to the second discharge through hole. At this time, the filling valve is in an open state. The first liquid material flows out from the first feed pipe through the first feed port, the first feed channel, the first discharge port, and the first discharge through hole in sequence. The second liquid material flows out from the second feed pipe through the second feed port, the second feed channel, the second discharge port, and the second discharge through hole in sequence. The first liquid material and the second liquid material can be the same material or different materials. After quantitative filling, the valve core body is driven to rotate 90 degrees by the rotary drive mechanism so that the first discharge port is completely misaligned with the first discharge through hole, and the second discharge port is completely misaligned with the second discharge through hole. At this time, the first discharge port is closed, and the filling valve is in Figure 6 In the closed state shown, liquid materials cannot flow out. During the use of the filling valve, the lower end of the valve core body always maintains contact and sealing with the valve sleeve under the action of the compression spring. When the filling valve needs to be cleaned after use, the lifting mechanism 11 lifts the valve core body by a certain displacement through the connecting plate, such as Figure 4 As shown, at this time, the first feed inlet and the second feed inlet both enter the annular cavity, and the water flow in the flushing pipe enters the annular cavity and is discharged through the first feed channel and the second feed channel to achieve cleaning.

[0031] like Fig. 9 As shown, in actual use, multiple filling valves can be installed on the rack as needed, and the rotation of the valve core body in each filling valve can be synchronously controlled by a rack to synchronously realize the opening and closing of the filling valve; the valve stem on each filling valve is connected to the same connecting plate, and the lifting and lowering of the valve core body of each filling valve is synchronously controlled by a lifting mechanism to synchronously realize cleaning.

[0032] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by up, down, left, right, inside, outside, one end, the other end, etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of more clearly describing the technical solution of the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific orientation, and cannot be understood as a limitation of the present invention.

[0033] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A filling valve structure, comprising a valve sleeve and a valve core body arranged in the valve sleeve, characterized in that: The valve core body is rotatably connected with the valve sleeve, the upper end of the valve core body is provided with a valve stem extending out of the valve sleeve, the upper end side of the valve core body is provided with a first feed port, the lower end surface of the valve core body is provided with an eccentrically distributed first discharge port, a first feed channel connecting the first feed port and the first discharge port is provided in the valve core body, a first feed pipe connected with the first feed port is provided on the side of the valve sleeve, a first discharge through hole is provided at the lower end of the valve sleeve corresponding to the first discharge port, and a rotation driving mechanism for driving the valve core body to rotate is provided on the valve stem; when working, the lower end of the valve core body abuts against the lower end of the valve sleeve; A second feed port is also provided on the side of the valve core body, an eccentrically distributed second discharge port is provided at the lower end of the valve core body, a second feed channel connecting the second feed port and the second discharge port is provided in the valve core body, a second discharge through hole is provided at the lower end of the valve sleeve corresponding to the second discharge port; a second feed pipe connected to the second feed port is provided on the side of the valve sleeve; the second discharge port is symmetrically distributed with respect to the center of the first discharge port; The upper end of the valve stem is provided with a connecting plate, the valve stem passes through the connecting plate to form a sliding connection, the upper end of the valve stem is provided with a limit piece, the valve stem is provided with a limit retaining ring on the lower side of the connecting plate, and the valve stem is provided with an elastic element between the limit retaining ring and the connecting plate; An annular cavity is provided between the inner side of the upper end of the valve sleeve and the valve stem, a flushing pipe connected to the annular cavity is provided on the outer side of the valve sleeve, and a lifting mechanism is connected to the connecting plate; when the filling valve is used, the connecting plate is driven to rise by the lifting mechanism, and the connecting plate pulls the valve stem and the valve core body to rise, so that the first feed port and the second feed port both enter the annular cavity, and the water flow in the flushing pipe enters the annular cavity and is discharged through the first feed channel and the second feed channel to achieve cleaning.

2. A filling valve structure according to claim 1, characterized in that: An annular groove is provided at a position corresponding to the first feed pipe and on the side surface of the valve core body, and the first feed port is communicated with the annular groove.

3. A filling valve structure according to claim 2, characterized in that: The side surfaces of the valve core body are provided with sealing elements on both sides of the annular groove.

4. A filling valve structure according to claim 1, characterized in that: The rotary drive mechanism includes a driven gear and a rack. The driven gear and the valve stem are connected by circumferential limiting and axial sliding. Sleeves are provided at both ends of the driven gear on the valve stem. The upper end of the elastic element abuts against the sleeve, and the lower end of the elastic element abuts against the limit ring; the rack is meshed with the driven gear, and a driving component for driving the rack to move is provided on the connecting plate.

5. A filling valve structure according to claim 4, characterized in that: The driving assembly comprises a driving motor fixed on the connecting plate, and a driving gear meshing with a rack is arranged at the shaft end of the driving motor.

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