An automatic filling device capable of preventing dripping and cap skewing

Abstract

An automatic filling device capable of preventing dripping and skewing cover, comprising a conveying device for conveying filling bottles, a filling station and a cover screwing station arranged in sequence along the conveying direction of the conveying device, the filling station comprising a filling device, a dripping prevention device and a limiting device, the dripping prevention device comprising a liquid leakage collection box movable in horizontal direction and located below the filling device, the limiting device being used for preventing the filling bottles on the conveying device from deviating; the cover screwing station comprising a cover screwing device and a skewing cover detection device arranged in sequence along the conveying direction of the conveying device. The setting of the dripping prevention device effectively collects residual liquid, avoids the residual liquid from dropping on the bottle mouth or bottle body of the filling bottle, and affects the packaging and pollutes the filling bottle; the limiting device can be positioned and clamped on the filling bottle during filling, improving the docking accuracy of the filling device and the filling bottle, and being beneficial to improving the automatic filling efficiency; the skewing cover detection device can improve the detection efficiency compared with artificial visual detection.

Description

Technical Field

[0001] This utility model relates to the field of automatic filling equipment technology, and in particular to an automatic filling device that prevents dripping and tilting of the cap. Background Technology

[0002] In modern industrial production, filling equipment is one of the key pieces of equipment widely used in industries such as food, beverage, chemical, and pharmaceutical. Currently, the working process of filling equipment is as follows: When filling a certain liquid, a conveyor belt transports the containers to be filled. When the container is transported to the position corresponding to the filling machine, the conveyor belt stops, and the filling head of the filling machine lowers to facilitate filling. After filling is completed, the conveyor belt continues to transport the container to the capping device for capping.

[0003] However, two problems are likely to occur during the above process: First, when the filling head is lifted up after filling, dripping and liquid residue are likely to occur, and the conveyor belt, bottle and workbench are easily contaminated, which not only affects the filling quality and production environment, but also the filling efficiency; Second, the cap may be twisted crookedly or not tightened properly, and relying solely on workers to check with their naked eyes is inefficient and labor-intensive. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an automatic filling device that prevents dripping and tilting of the cap.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An automatic filling device for preventing dripping and misalignment includes a conveying device for conveying filling bottles. A filling station and a capping station are arranged sequentially along the conveying direction of the conveying device. The filling station includes a filling device, a drip-proof device, and a limiting device. The drip-proof device includes a leakage collection box that can move horizontally and is located below the filling device. The limiting device is used to prevent the filling bottles on the conveying device from shifting. The capping station is provided with a capping device and a misalignment detection device in sequence along the conveying direction of the conveying device.

[0007] Furthermore, the limiting device is a limiting frame located below the filling device. The limiting frame can move in the vertical direction, and the limiting frame is provided with a plurality of limiting ports adapted to the body of each filling bottle.

[0008] Furthermore, it also includes a first mounting frame installed on the outside of the conveying device, wherein the filling device, the limiting device and the anti-drip device are disposed on the first mounting frame.

[0009] Furthermore, the filling device includes a filling box, a flow tube, and a plurality of filling tubes. The two ends of the flow tube are respectively connected to the filling box and the filling tubes. The outlet end of the filling tube faces the conveying device. The device also includes a first driving device for driving the flow tube to move vertically. The flow tube is externally connected to the output end of the first driving device. The flow tube and the filling box are connected by an elastic flexible tube.

[0010] Furthermore, the anti-drip device includes a second driving device and a leakage collection box connected to the output end of the second driving device, the leakage collection box being located below the outflow end of the filling tube.

[0011] Furthermore, it also includes a second mounting bracket installed on the outside of the conveying device, and the capping device is disposed on the second mounting bracket.

[0012] Furthermore, it also includes a third mounting bracket installed at the end of the conveying device, the third mounting bracket being equipped with a height sensor for detecting the height of the filling bottle, the height sensor constituting the crooked cap detection device.

[0013] Furthermore, the height sensor is a photoelectric sensor located directly above the bottle conveying path.

[0014] Furthermore, it also includes a controller and a push rod device. The photoelectric sensor and the push rod device are electrically connected to the controller. The controller drives the push rod device to push the misaligned cap bottle out of the conveying device based on whether the photoelectric sensor detects a misaligned cap, so that the misaligned cap bottle no longer participates in the conveying process.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model proposes an automatic filling device for preventing dripping and misaligned caps. It includes a conveying device for transporting filling bottles, with a filling station and a capping station arranged sequentially along the conveying direction of the conveying device. The filling station includes a filling device, an anti-drip device, and a limiting device. The anti-drip device includes a leakage collection box that can move horizontally and is located below the filling device. The limiting device prevents the filling bottles on the conveying device from shifting. The capping station has a capping device and a misaligned cap detection device arranged sequentially along the conveying direction of the conveying device. The anti-drip device effectively collects residual liquid, preventing it from dripping onto the bottle mouth or body, affecting sealing and contaminating the bottle. The limiting device positions itself on the bottle during filling, improving the alignment accuracy between the filling device and the bottle, thus improving filling quality. The misaligned cap detection device improves detection efficiency compared to manual visual inspection.

[0017] 2. This utility model proposes an automatic filling device that prevents dripping and tilting of the cap. The filling device includes a filling tank, a flow tube, and several filling tubes. Both ends of the flow tube are connected to the filling tank and the filling tubes, respectively. The outflow end of the filling tubes faces the conveying device. It also includes a first driving device for driving the flow tubes to move vertically. The flow tube is externally connected to the output end of the first driving device. The flow tubes are connected to the filling tank via a flexible hose. The filling mechanism is equipped with multiple filling tubes, enabling the filling device to fill multiple bottles simultaneously, thus improving production efficiency and processing capacity. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a filling device for preventing dripping and tilting of the cap according to the present invention;

[0020] Figure 2 This is a schematic diagram of the filling station;

[0021] Figure 3 This is a schematic diagram of the capping station;

[0022] In the diagram, 10 is a conveying device; 20 is a filling device; 201 is a filling box; 202 is a flow pipe; 203 is a filling pipe; 204 is a first driving device; 301 is a second driving device; 302 is a leakage collection box; 40 is a limiting device; 401 is a limiting port; 501 is a first mounting bracket; 502 is a second mounting bracket; 503 is a third mounting bracket; 601 is a capping device; 602 is a bottle cap conveying turntable; 701 is a height sensor; 702 is a push rod device; and 80 is a filling bottle. Detailed Implementation

[0023] The following is combined Figure 1-3 This utility model will be described in detail.

[0024] A drip-proof and cap-proof filling device includes a conveying device 10 for conveying filling bottles 80. A filling station and a capping station are sequentially arranged along the conveying direction of the conveying device 10. The filling station includes a filling device 20, a drip-proof device, and a limiting device 40. The drip-proof device includes a leakage collection box 302 that can move horizontally and is located below the filling device 20. The limiting device 40 is used to prevent the filling bottles 80 on the conveying device 10 from shifting. The capping station includes a capping device 601 and a cap-proof detection device sequentially arranged along the conveying direction of the conveying device 10. The drip-proof device effectively collects residual liquid, preventing it from dripping onto the bottle mouth or body of the filling bottle 80, thus avoiding affecting sealing and contaminating the bottle 80. The limiting device 40 can be positioned and engaged on the filling bottle 80 during filling, improving the alignment accuracy between the filling device 20 and the filling bottle 80, which is beneficial for improving filling quality. The cap-proof detection device improves detection efficiency compared to manual visual inspection.

[0025] Specifically, the conveying device 10 is a conveyor belt, and the filling bottle 80 is a container bottle that will be used to fill liquid. After placing several filling bottles 80 on the conveyor belt, a screw-type bottle separator can be used to separate the adjacent filling bottles 80 one by one and arrange them at equal intervals to ensure that each filling bottle 80 can be accurately stopped under the filling head. Alternatively, multiple positioning circles can be drawn on the surface of the conveyor belt and the filling bottle 80 can be manually placed in the position of the positioning circle. The diameter of the positioning circle is equal to the bottom diameter of the filling bottle 80. Alternatively, other technical means in this field can be referred to. This embodiment does not innovate in this part.

[0026] In this embodiment, the limiting device 40 is a limiting frame located below the filling device 20. The limiting frame can move vertically and has several limiting openings 401 adapted to the body of each filling bottle 80. Specifically, the vertical direction refers to the height direction of the filling device 20. Alternatively, the limiting device 40 can be configured as two limiting plates, located on both sides of the conveyor belt along its width, clamping the sides of the filling bottle 80. This effectively blocks and limits the filling bottle 80, reducing the possibility of the filling bottle 80 shifting during the filling process. Furthermore, the position of the limiting plates can be changed by setting a threaded transmission structure or a motor to accommodate filling bottles 80 of different diameters.

[0027] In this embodiment, a first mounting frame 501 is also installed on the outside of the conveying device 10, and the filling device 20, the limiting device 40 and the anti-drip device are disposed on the first mounting frame 501.

[0028] In this embodiment, the filling device 20 includes a filling tank 201, a flow tube 202, and several filling tubes 203. The two ends of the flow tube 202 are connected to the filling tank 201 and the filling tubes 203, respectively. The outflow end of the filling tube 203 faces the conveying device 10. It also includes a first driving device 204 for driving the flow tube 202 to move vertically. The flow tube 202 is externally connected to the output end of the first driving device 204. The flow tube 202 and the filling tank 201 are connected via a flexible hose. Specifically, the filling tank 201 contains the liquid product to be filled into the filling bottle 80; the filling volume of each filling tube 203 is controlled by a solenoid valve. There are two filling triggering mechanisms: one is sensor detection, where a photoelectric sensor detects the presence of a bottle when the filling bottle 80 arrives at the filling station, triggering a filling signal to the control device; the other is intermittent conveying, calculating the filling interval every few seconds. The filling triggering mechanism is a conventional technique in the art and will not be elaborated here.

[0029] The aforementioned limiting frame is either located on the first mounting frame 501 and moved vertically via a separate driving device, or it is fixed to the outer wall of the flow pipe 202 and rises or falls along with the flow pipe 202 when it rises or falls vertically.

[0030] In this embodiment, the anti-drip device includes a second drive device 301 and a leakage collection box 302 connected to the output end of the second drive device 301. The leakage collection box 302 is located below the outlet end of the filling tube 203. Specifically, the second drive device 301 is a cylinder or a linear motor. Both the first drive device 204 and the second drive device 301 are electrically connected to the control device. Initially, the leakage collection box 302 is located between the first mounting bracket 501 and the filling tube 203, not directly below the outlet end of the filling tube 203. After filling is completed, the first drive device 204 is set to rise and reset for a few seconds, after which the second drive device 301, i.e., the cylinder, starts to start, driving the leakage collection box 302 to move horizontally in a linear motion to the filling tube 203. Directly below the outlet end, the liquid remaining at the outlet end of the filling tube 203 falls under the action of gravity and is effectively collected in the leakage collection box 302. A drain hole is opened at the bottom of the leakage collection box 302, and the liquid is discharged through the drain pipe. To facilitate drainage, the bottom surface of the leakage collection box 302 can be set as a slope. Alternatively, the output end of the second drive device 301 is connected to a connecting block, and the leakage collection box 302 can be detachably connected to the connecting block. In this way, when the leakage accumulates to a certain amount, the leakage collection box 302 can be removed for leakage treatment.

[0031] In this embodiment, a second mounting bracket 502 is also installed on the outside of the conveying device 10, and the capping device 601 is disposed on the second mounting bracket 502. Specifically, the capping device 601 is a conventional technical means in the art, and its working process is roughly as follows: the cap to be capped is supplied by the cap dispensing device, and after the relevant structure detects that the filling bottle 80 is in place, the cap conveying turntable 602 orderly conveys the caps from the cap dispensing device to below the capping clamping head. The capping motor of the capping device 601 drives the capping clamping head to rotate, and the rotating locking part clamps the cap with the outer wall of the cap to tightly screw the cap onto the filling bottle 80. After the capping is completed, the conveyor belt continues to convey the filling bottle 80 to the subsequent station. The specific structure of the capping device 601 can refer to the prior art, and this embodiment does not innovate the capping device 601.

[0032] In this embodiment, a third mounting bracket 503 is also installed at the end of the conveying device 10. The third mounting bracket 503 is provided with a height sensor 701 for detecting the height of the filling bottle 80. The height sensor 701 constitutes a cap tilt detection device. Furthermore, the height sensor 701 is a photoelectric sensor located directly above the conveying path of the filling bottle 80.

[0033] Specifically, when the bottle cap is crooked or not tightened, the overall height of the filling bottle 80 along with the cap will be higher than the overall height when the cap is properly tightened. In this case, a height sensor 701 that can detect the height of the filling bottle 80 can determine whether the bottle is crooked. The photoelectric sensor is an existing technology that uses the physical quantities of "speed of light × time" or "speed of light × angle" to measure the height of the object directly below it. For example, a narrow laser beam is emitted directly below the sensor → it hits the surface of the object and is reflected → the avalanche photodiode (APD) in the sensor receives the echo, and the time difference Δt between "emission → reception" is measured. The height h = ½ × c × Δt (c is the speed of light). Since the speed of light is a constant, as long as the time is measured accurately enough, the straight-line distance from the sensor to the top surface of the object can be directly calculated, thus obtaining the "height".

[0034] In this embodiment, a controller and a pusher device 702 are also included. The photoelectric sensor and the pusher device 702 are electrically connected to the controller. The controller drives the pusher device 702 to push the misaligned cap bottle 80 out of the conveyor device 10 based on whether the photoelectric sensor detects a misaligned cap, so that it no longer participates in the conveying process. Specifically, the pusher device 702 includes a power source and a pusher body connected to the output end of the power source. The power source is a cylinder or a motor. After the sensor 703 detects the misaligned cap, it transmits a signal to the controller. The controller transmits a signal to the power source of the pusher device 702. The power source drives the pusher body to push the bottle 80 out of the conveyor belt and onto a fixed platform connected to the conveyor belt, so that it no longer participates in the current conveying. Alternatively, instead of a pusher device 702, a buzzer can be installed. The controller transmits a signal to the buzzer, and the buzzer sounds an alarm to remind workers to handle the bottle 80.

[0035] In addition to the configuration described above, sensor 703 can also be configured with photoelectric transmitters and receivers on both sides of the conveyor belt. The photoelectric receivers receive the detection light emitted by the photoelectric transmitter. When a properly capped bottle 80 is conveyed between the photoelectric transmitter and receiver, the detection light emitted by the transmitter can be projected onto the opposite photoelectric receiver while closely adhering to the top surface of the cap. When the cap is not properly capped, the overall height of the bottle 80 increases, blocking the detection light emitted by the transmitter. When the receiver cannot receive the light, it sends a signal to the controller. The controller then sends a signal to the power source of the push rod device 702. The power source drives the push rod to push the bottle 80 off the conveyor belt and onto a fixed platform connected to the conveyor belt, thus preventing it from participating in the current conveying process. In short, the transmitter continuously emits an infrared beam, which the receiver receives. If the receiver cannot receive the beam, it indicates that a product with a faulty cap has passed by.

[0036] The working process of the anti-drip and anti-cropped filling equipment proposed in this utility model is as follows:

[0037] (1) Several bottles 80 are conveyed to the filling station via a conveyor belt, aligned with the outlet of their respective filling tubes 203, and the conveying is paused; (2) The cylinder drives the flow tube 202 to descend, which in turn drives several filling tubes 203 and the limiting frame to descend. The limiting port 401 of the limiting frame contacts the outer body of the bottle 80 and positions and locks it in place, while the outlet of the filling tube 203 is inserted into the corresponding bottle 80, and the filling operation begins; (3) After filling is completed, the flow tube 202 drives several filling tubes 203 and the limiting frame to rise and reset. During the reset process, the leakage collection box 302 extends out. (4) After collecting the leaked liquid, the leak collection box 302 is reset and the conveyor belt continues to convey the liquid. (5) Several bottles 80 arrive at the capping station. After the capping device 601 completes the capping, the bottles continue to be conveyed to the area where the crooked cap detection device is installed. If the crooked cap or the cap is not tightened, the crooked cap detection device will send a signal to the controller. The controller will send a signal to the power source of the push rod device 702. The power source will drive the push rod body to push the bottle 80 out of the conveyor belt and to the fixed platform connected to the conveyor belt, so that it will no longer participate in the current conveying.

[0038] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An automatic filling device that prevents dripping and tilting of the cap, characterized in that, The device includes a conveying device for transporting filled bottles. A filling station and a capping station are arranged sequentially along the conveying direction of the conveying device. The filling station includes a filling device, an anti-drip device, and a limiting device. The anti-drip device includes a leakage collection box that can move horizontally and is located below the filling device. The limiting device is used to prevent the filled bottles on the conveying device from shifting. The capping station is provided with a capping device and a misaligned cap detection device in sequence along the conveying direction of the conveying device.

2. The automatic filling equipment for preventing dripping and tilting caps as described in claim 1, characterized in that, The limiting device is a limiting frame located below the filling device. The limiting frame can move in the vertical direction and has several limiting ports adapted to the body of each filling bottle.

3. The automatic filling equipment for preventing dripping and tilting of the cap as described in claim 1, characterized in that, It also includes a first mounting frame installed on the outside of the conveying device, wherein the filling device, the limiting device and the anti-drip device are disposed on the first mounting frame.

4. The automatic filling equipment for preventing dripping and tilting caps as described in claim 3, characterized in that, The filling device includes a filling tank, a flow tube, and several filling tubes. The two ends of the flow tube are connected to the filling tank and the filling tubes, respectively. The outlet end of the filling tube faces the conveying device. The device also includes a first driving device for driving the flow tube to move vertically. The flow tube is externally connected to the output end of the first driving device. The flow tube and the filling tank are connected by an elastic flexible tube.

5. The automatic filling equipment for preventing dripping and tilting of the cap as described in claim 4, characterized in that, The anti-drip device includes a second driving device and a leakage collection box connected to the output end of the second driving device, the leakage collection box being located below the outflow end of the filling tube.

6. The automatic filling equipment for preventing dripping and tilting of the cap as described in claim 1, characterized in that, It also includes a second mounting bracket installed on the outside of the conveying device, and the capping device is located on the second mounting bracket.

7. An automatic filling device for preventing dripping and tilting of the cap as described in any one of claims 1-6, characterized in that, It also includes a third mounting bracket installed at the end of the conveying device, the third mounting bracket being equipped with a height sensor for detecting the height of the filling bottle, the height sensor constituting the cap tilt detection device.

8. The automatic filling equipment for preventing dripping and tilting of the cap as described in claim 7, characterized in that, The height sensor is a photoelectric sensor located directly above the bottle conveying path.

9. The automatic filling equipment for preventing dripping and tilting of the cap as described in claim 8, characterized in that, It also includes a controller and a push rod device. The photoelectric sensor and the push rod device are electrically connected to the controller. The controller drives the push rod device to push the misaligned cap bottle out of the conveying device based on whether the photoelectric sensor detects a misaligned cap, so that the misaligned cap bottle no longer participates in the conveying process.

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