CN221189230U

CN221189230U - Quantitative feeding device

Info

Publication number: CN221189230U
Application number: CN202322657545.7U
Authority: CN
Inventors: 谭珍
Original assignee: Foshan Ruiji Machinery Co ltd
Current assignee: Foshan Ruiji Machinery Co ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-06-21
Anticipated expiration: 2033-09-28

Abstract

The utility model belongs to the technical field of filling equipment, and provides a quantitative feeding device which comprises a filling assembly, wherein the filling assembly comprises a filling valve, the filling valve comprises a valve cylinder, a connecting rod and a valve core, wherein the connecting rod and the valve core are arranged in the valve cylinder, a feeding port is arranged on the side surface of the valve cylinder, a discharging port is arranged at one end of the valve cylinder, one end of the connecting rod is connected with the valve core, and the other end of the connecting rod extends out of the valve cylinder in the direction far away from the discharging port; the filling assembly further comprises a gear pump, a feeding motor and an opening and closing motor, wherein the output end of the gear pump is communicated with the feeding port, the feeding motor is in transmission connection with the gear pump and used for driving the gear pump to feed materials into the valve cylinder, and the opening and closing motor is in transmission connection with the valve rod and used for driving the valve core to block or open the discharging port. This ration feeding device, gear pump are as the instrument of the measurement of pay-off, and the required rotation number of turns of gear pump is calculated according to the volumetric capacity of required filling, and when the gear pump rotated to predetermineeing the number of turns, the control of open-shut motor drive case stopped the filling to realize accurate ration feeding, the structure is simpler reliable.

Description

Quantitative feeding device

Technical Field

The utility model relates to the technical field of filling equipment, in particular to a quantitative feeding device.

Background

In the process of sub-packaging materials, filling equipment is usually required to fill the packaging containers, and since the capacities of the packaging containers with the same specification are the same, in order to ensure that the materials filled in each packaging container are consistent within a tolerance range, quantitative filling is required to be performed by adopting the filling equipment.

The quantitative filling equipment on the market at present usually adopts weighing filling and volumetric filling. The weighing and filling is to place the container to be filled on the weighing mechanism, then fill the material into the container, and stop filling the material after the material is filled to the preset weight, but because the material can be impacted by the weighing mechanism in the filling process, the weight can be accurately read only after the material is calm, the waiting time is needed, and the reliability of the weighing mechanism is also required to be high, so the weighing and quantitative filling has the defects of low filling efficiency and high cost. The quantitative filling of the volume needs to fill the material with the preset volume into the measuring cup, then the material in the measuring cup is transferred into the packaging container, and the material is transferred for a plurality of times in the process, so that the complexity of the structure of the device can be increased, and the material loss can be caused in the process of transferring the material into the packaging container by the measuring cup, so that the quantitative filling error is larger.

The technical problems to be solved by the utility model are as follows: how to provide a quantitative feeding device with high filling precision and simple and reliable structure.

Disclosure of utility model

In order to overcome the defects of the prior art, the utility model aims to provide a quantitative feeding device which has the characteristics of simple and reliable structure and high filling precision.

The technical scheme adopted by the utility model is as follows: the quantitative feeding device comprises a filling assembly, wherein the filling assembly comprises a filling valve, the filling valve comprises a valve cylinder, a connecting rod and a valve core, wherein the connecting rod and the valve core are arranged in the valve cylinder;

The filling assembly further comprises a gear pump, a feeding motor and an opening and closing motor, wherein the output end of the gear pump is communicated with the feeding port, the feeding motor is in transmission connection with the gear pump and used for driving the gear pump to feed materials into the valve cylinder, and the opening and closing motor is in transmission connection with the valve rod and used for driving the valve core to block or open the discharging port.

According to the quantitative feeding device, the gear pump is arranged as a metering tool for feeding, and the flow rate conveyed by the gear pump in each rotation is fixed, so that the required rotation number of the gear pump can be calculated according to the required filling volume, when the gear pump rotates to the preset rotation number, the valve core is driven by the opening and closing motor to control the filling stop, and therefore accurate quantitative feeding is achieved.

In some embodiments, the filling assembly further comprises a transmission mechanism, the transmission mechanism comprises an eccentric wheel and a swing rod, the eccentric wheel is fixedly connected with an output shaft of the opening and closing motor, one end of the swing rod is rotatably connected with the eccentric wheel, and the other end of the swing rod is pivoted with one end of the valve rod, which is far away from the valve core. Through eccentric wheel and pendulum rod cooperation, can change the required straight line reciprocating motion of case into with the rotary motion of motor that opens and shuts, can realize opening and shutting motor and case rigid connection moreover, ensure the leakproofness of filling valve, avoid behind the shutoff discharge gate of case, the material is leaked from the discharge gate.

In some embodiments, the filling assembly further comprises a proximity switch, the proximity switch is mounted on one side of the swing rod, the detection direction of the proximity switch is perpendicular to a plane formed by the swing track of the swing rod, and the proximity switch is electrically connected with the feeding motor. Can realize opening and shutting motor and feeding motor collaborative work through setting up proximity switch, promptly when case shutoff discharge gate, feeding motor stop work makes the gear pump pause pay-off, and when the discharge gate was opened to the case, feeding motor work made the gear pump last pay-off, can improve the precision of filling like this, also can avoid simultaneously filling valve to close, and when lasting the pay-off leads to valve section of thick bamboo internal pressure too big, and leads to filling valve seepage even damage.

In some embodiments, a feed assembly is also included, the feed assembly including a hopper having a bottom in communication with an input of the gear pump. Through setting up the hopper, ensure can stabilize the pay-off, whether the operator of being convenient for observes and has continuous feeding, avoids the gear pump to appear idling or the condition of pay-off inadequately.

In some embodiments, the feed assembly further comprises a feed pump for feeding material into the hopper.

In some embodiments, the feed assembly further comprises a feed sensor mounted within the hopper, and the feed sensor is electrically connected to the feed pump. The material supplementing sensor is arranged so as to control the material supplementing pump to automatically supplement materials into the hopper.

In some embodiments, the feed motor is drivingly connected to the gear pump via an axle coupling. Through setting up the axle allies oneself with the ware for feeding motor and gear pump transmission efficiency are more high-efficient, and is accurate, so that the gear pump can accurate measurement conveying material.

In some embodiments, the feed motor is a servo motor and the open-close motor is a stepper motor. The gear pump is driven to operate through the servo motor, metering is more accurate, and economical efficiency and accuracy are considered through the opening and closing of the filling valve controlled by the stepping motor.

In some embodiments, one end of the valve cylinder close to the discharge hole is conical, and the valve core is of an inverted circular truncated cone structure matched with the conical shape. Through setting up the conical surface cooperation, can make things convenient for the case to fix a position when cooperating with the discharge gate on the one hand, on the other hand also can increase the area of contact when the shutoff discharge gate of case, ensures the leakproofness.

In some embodiments, the gear pump communicates with the feed inlet of the valve cartridge via a conduit, and the gear pump is quickly detachably connected to the conduit via a quick connector to the clamp. The arrangement can facilitate the quick assembly disassembly of the pipeline.

Drawings

FIG. 1 is a schematic view of a dosing device according to a preferred embodiment of the present utility model;

Fig. 2 is a schematic view of a part of the structure of a filling assembly in the dosing device shown in fig. 1.

In the figure: 100. a quantitative feeding device; 10. a filling assembly; 11. a filling valve; 111. a valve cylinder; 112. a connecting rod; 113. a valve core; 12. an opening and closing motor; 13. a transmission mechanism; 131. an eccentric wheel; 132. swing rod; 14. a gear pump; 15. a feeding motor; 16. a proximity switch; 20. a feed supplement assembly; 21. a hopper; 22. a feed pump; 23. and a feed supplement sensor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When the number of one element is referred to as being "plural," it may be any number of two or more. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-2, a dosing device 100 according to a preferred embodiment of the present utility model includes a filling assembly 10, wherein the filling assembly 10 includes a filling valve 11, a gear pump 14 in communication with an input end of the filling valve 11, and a gear pump 14 for driving the gear pump 14. According to the quantitative feeding device 100, the gear pump 14 is used as a metering tool for feeding, the required rotation number of the gear pump 14 is calculated according to the required filling volume, and when the gear pump 14 rotates to the preset number of times, the filling valve 11 is driven to close to stop filling, so that accurate quantitative feeding is realized, and the quantitative feeding device is simple and reliable in structure.

As shown in fig. 2, the filling valve 11 comprises a valve cylinder 111, a connecting rod 112 and a valve core 113, wherein the connecting rod 112 and the valve core 113 are arranged in the valve cylinder 111, a feed port (not shown) is arranged on the side surface of the valve cylinder 111, a discharge port (not shown) is arranged at one end of the valve cylinder 111, one end of the connecting rod 112 is connected with the valve core 113, and the other end extends out of the valve cylinder 111 in the direction away from the discharge port; further, one end of the valve cylinder 111 near the discharge port is conical, and the valve core 113 is of an inverted truncated cone structure matched with the conical shape. Through setting up the conical surface cooperation, can make things convenient for the case 113 to fix a position when cooperating with the discharge gate on the one hand, on the other hand also can increase the area of contact when the shutoff of case 113 discharge gate, ensures the leakproofness.

Referring to fig. 2 again, in order to automatically control the opening and closing of the filling valve 11, the filling assembly 10 further includes an opening and closing motor 12 for controlling the opening and closing of the filling valve 11, where the opening and closing motor 12 is in transmission connection with the valve rod and is used for driving the valve core 113 to block or open the discharge hole. Further, the filling assembly 10 further comprises a transmission mechanism 13, the transmission mechanism 13 comprises an eccentric wheel 131 and a swing rod 132, the eccentric wheel 131 is fixedly connected with an output shaft of the opening and closing motor 12, one end of the swing rod 132 is rotatably connected with the eccentric wheel 131, and the other end of the swing rod 132 is pivoted with one end of the valve rod far away from the valve core 113. Through the cooperation of the eccentric wheel 131 and the swing rod 132, the rotary motion of the opening and closing motor 12 can be converted into the linear reciprocating motion required by the valve core 113, and the rigid connection between the opening and closing motor 12 and the valve core 113 can be realized, so that the tightness of the filling valve 11 is ensured, and the leakage of materials from a discharge hole after the valve core 113 seals the discharge hole is avoided.

As shown in fig. 1, the output end of the gear pump 14 is communicated with the feed port, and the feeding motor 15 is in transmission connection with the gear pump 14 and is used for driving the gear pump 14 to feed into the valve cylinder 111. The amount of fluid delivered per rotation of the gear pump 14 is fixed, so that the number of rotations of the gear pump 14 can be determined according to the flow rate of the filling material required, and the volume of the filling material can be accurately controlled by controlling the number of rotations of the gear pump 14. Preferably, the feeding motor 15 is a servo motor, and the opening and closing motor 12 is a stepping motor. The gear pump 14 is driven to operate through the servo motor, metering is more accurate, and economical efficiency and accuracy are considered in controlling the opening and closing of the filling valve 11 through the stepping motor.

Preferably, the feed motor 15 is in driving connection with the gear pump 14 via an axle coupling (not shown). Through setting up the axle coupler for feeding motor 15 and gear pump 14 transmission efficiency is more high-efficient, accurate, so that gear pump 14 can accurate measurement conveying material.

Optionally, the filling assembly 10 further includes a proximity switch 16, a base (not shown) is mounted at an end of the valve barrel 111 away from the discharge port, the opening and closing motor 12 and the proximity switch 16 are both mounted on the base, the proximity switch 16 is mounted on one side of the swing rod 132, the detection direction of the proximity switch 16 is perpendicular to a plane formed by the swing track of the swing rod 132, and the proximity switch 16 is electrically connected with the feeding motor 15. The closing motor 12 and the feeding motor 15 can work cooperatively through the proximity switch 16, namely when the valve core 113 is used for blocking a discharge hole, the feeding motor 15 stops working to enable the gear pump 14 to stop feeding, when the valve core 113 is used for opening the discharge hole, the feeding motor 15 works to enable the gear pump 14 to continuously feed, so that the filling precision can be improved, and meanwhile, the phenomenon that the pressure in the valve cylinder 111 is too large due to continuous feeding when the filling valve 11 is closed, and the filling valve 11 is leaked or even damaged can be avoided.

The principle that the proximity switch 16 controls the opening and closing motor 12 to work cooperatively with the feeding motor 15 is as follows:

The number of turns of the gear pump 14 corresponding to the volume of the filling material required by each packaging container is calculated, so that the number of turns required by the feeding motor 15 is determined, the time required for filling a single container is determined according to the number of turns required by the feeding motor 15, and then the time required for driving the swing rod 132 to swing for one period by the opening and closing motor 12 is obtained according to the time required for filling the single container plus the time required for sealing the single container, so that the feeding motor 15 and the opening and closing motor 12 can work cooperatively, and the number of turns of the feeding motor 15 and the time required for rotating the opening and closing motor 12 for one period are controlled by a controller (not shown). When the proximity switch 16 cannot detect the shielding of the swing rod 132, namely, the filling valve 11 is in a closed state at the moment, the proximity switch 16 sends a corresponding signal to the controller, the controller controls the feeding motor 15 to stop working, and the gear pump 14 does not feed into the valve cylinder 111 any more at the moment, so that leakage caused by excessive pressure in the valve cylinder 111 is prevented, and the valve cylinder 111 is prevented from being broken if serious; when the proximity switch 16 detects that the swing rod 132 is blocked, namely, the filling valve 11 is in an open state at the moment, the proximity switch 16 sends a corresponding signal to the controller, the controller controls the feeding motor 15 to work, and the gear pump 14 is driven to continuously feed into the valve cylinder 111, so that continuous and accurate feeding is ensured.

As shown in fig. 1, to enable continuous feeding, the present dosing device 100 further comprises a feeding assembly 20, the feeding assembly 20 comprising a hopper 21, the bottom of the hopper 21 being in communication with the input of the gear pump 14. By providing the hopper 21, stable feeding is ensured, and an operator can conveniently observe whether continuous feeding exists, so that the condition that the gear pump 14 idles or is in short feeding is avoided. Further, the feeding assembly 20 further comprises a feeding pump 22, wherein the feeding pump 22 is used for feeding the material into the hopper 21. In order to facilitate the control of the feed pump 22 to automatically feed material into the hopper 21, the feed assembly 20 further includes a feed sensor 23, the feed sensor 23 is mounted in the hopper 21, and the feed sensor 23 is electrically connected to the feed pump 22. In the embodiment, the material supplementing sensor 23 is a liquid level device, and when the volume of the material in the hopper 21 is lower than the lower limit of the liquid level device, the material supplementing pump 22 is electrified to start supplementing the material into the hopper 21, so that the problem that the filling accuracy is affected by insufficient material in the hopper 21 is avoided; when the volume of the material in the hopper 21 is equal to the upper limit of the liquid level device, the material supplementing pump 22 is powered off to stop supplementing the material into the hopper 21, so that the material is prevented from overflowing the hopper 21. Optionally, the feed pump 22 is a self-priming stainless steel centrifugal pump.

In this embodiment, the gear pump 14 is connected to the feed port of the hopper 21 and the valve cylinder 111 through a pipe (not shown), and the gear pump 14 is connected to the pipe through a quick connector (not shown) and a clip (not shown) in a quick and detachable manner. The arrangement can facilitate the quick assembly disassembly of the pipeline. Similarly, the hopper 21 and the pipeline are quickly and detachably connected through the quick connector and the clamp

According to the quantitative feeding device 100, the gear pump 14 is arranged as a metering tool for feeding, and the flow rate conveyed by each rotation of the gear pump 14 is fixed, so that the required rotation number of the gear pump 14 can be calculated according to the required filling volume, when the gear pump 14 rotates to the preset rotation number, the opening and closing motor 12 drives the connecting rod 112, the valve core 113 is driven by the connecting rod 112 to block the discharge hole, and the filling valve 11 is controlled to stop filling, so that accurate quantitative feeding is realized, and compared with the traditional weighing quantitative filling and quantitative volume quantitative filling, the structure is simpler and more reliable.

Finally, it should be noted that the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited to the foregoing embodiments, but may be modified or substituted for some of the features described in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a ration feeding device (100), includes filling subassembly (10), filling subassembly (10) include filling valve (11), filling valve (11) include valve section of thick bamboo (111), built-in connecting rod (112) and case (113) of valve section of thick bamboo (111), the side of valve section of thick bamboo (111) is equipped with the feed inlet, the one end of valve section of thick bamboo (111) is equipped with the discharge gate, the one end and the case (113) of connecting rod (112) are connected, and the other end is outwards to keeping away from the discharge gate direction and stretches out valve section of thick bamboo (111), its characterized in that:

The filling assembly (10) further comprises a gear pump (14), a feeding motor (15) and an opening and closing motor (12), wherein the output end of the gear pump (14) is communicated with the feeding port, the feeding motor (15) is in transmission connection with the gear pump (14) and is used for driving the gear pump (14) to feed materials into the valve cylinder (111), and the opening and closing motor (12) is in transmission connection with the valve rod and is used for driving the valve core (113) to block or opening the discharging port.

2. The quantitative feeding device (100) according to claim 1, wherein the filling assembly (10) further comprises a transmission mechanism (13), the transmission mechanism (13) comprises an eccentric wheel (131) and a swinging rod (132), the eccentric wheel (131) is fixedly connected with an output shaft of the opening and closing motor (12), one end of the swinging rod (132) is rotatably connected with the eccentric wheel (131), and the other end of the swinging rod is pivoted with one end of the valve rod far away from the valve core (113).

3. The dosing device (100) according to claim 2, wherein the filling assembly (10) further comprises a proximity switch (16), the proximity switch (16) is mounted on one side of the swing rod (132), the detection direction of the proximity switch (16) is perpendicular to the plane formed by the swing track of the swing rod (132), and the proximity switch (16) is electrically connected with the feeding motor (15).

4. The dosing device (100) according to claim 1, further comprising a feeding assembly (20), the feeding assembly (20) comprising a hopper (21), a bottom of the hopper (21) being in communication with an input of the gear pump (14).

5. The dosing device (100) according to claim 4, wherein the feeding assembly (20) further comprises a feeding pump (22), the feeding pump (22) being adapted to feed material into the hopper (21).

6. The dosing device (100) according to claim 5, wherein the feeding assembly (20) further comprises a feeding sensor (23), wherein the feeding sensor (23) is mounted in the hopper (21), and wherein the feeding sensor (23) is electrically connected to a feeding pump (22).

7. Dosing device (100) according to claim 1, characterized in that the feed motor (15) is in driving connection with the gear pump (14) via an axle coupling.

8. The dosing device (100) according to claim 1, wherein the feeding motor (15) is a servo motor and the opening and closing motor (12) is a stepper motor.

9. The quantitative charging device (100) according to claim 1, wherein one end of the valve cylinder (111) close to the discharging hole is conical, and the valve core (113) is of an inverted truncated cone structure matched with the conical shape.

10. The dosing device (100) according to claim 4, wherein the gear pump (14) is in communication with the feed inlet of the valve cylinder (111) via a pipe, and wherein the gear pump (14) is in quick detachable connection with the pipe via a quick coupling with a clamp.