An automatic detection feeder

Abstract

The utility model relates to an automatic detection feeder belongs to injection moulding technical field. The automatic detection feeder, include: the material bucket, the material bucket top fixed intercommunication has the material inlet, be provided with the filtering mechanism on the material inlet, wherein, the filtering mechanism includes setting in the filter cover of material inlet inside, the filter cover sets up as the hollow structure of upper cylindrical lower conical, the filter cover cylindrical surface evenly has a plurality of filter holes, the filter cover cylindrical surface is perpendicular to the material inlet top, the exhaust pipe is connected with the filter cover top, the above-mentioned automatic detection feeder sets up through the hollow structure of upper cylindrical lower conical of filter cover, and the cylindrical surface evenly sets up a plurality of filter holes, raw materials are inhaled into the material inlet, utilize the guiding effect and cylindrical side filter hole distribution of conical bottom, reduce the adhesion probability of raw materials in the filter cover, realize raw materials and dust efficient separation, avoid that filter hole is adhered and blocked by raw materials.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, and in particular to an automatic detection and feeding machine. Background Technology

[0002] Injection molding machines, also known as high-speed injection molding machines or high-speed injection presses, are the main molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting materials using plastic molds. Injection molding machines often require a feeding device to provide raw materials during operation.

[0003] As shown in the reference case "A material suction device for an injection molding machine" (publication number CN208197403U), the dust adhering to the filter screen is blown towards the suction pipe by the blowing force of the fan, thereby effectively preventing the filter screen from being blocked due to dust accumulation, reducing the number of times the filter screen needs to be cleaned, maintaining unobstructed airflow, and improving work efficiency.

[0004] However, when the above-mentioned suction device is in use, the raw material is sucked into the hopper under negative pressure. When there is a lot of raw material in the hopper, the raw material is close to the filter screen. At this time, the raw material will be adsorbed on the filter screen, affecting the air volume and the feeding. Utility Model Content

[0005] Therefore, it is necessary to provide an automatic detection feeder to address the problem that raw materials are adsorbed on the filter screen, affecting the feeding process.

[0006] An automatic detection and feeding machine includes: a material hopper, the top of which is fixedly connected to a feeding bin, a filtering mechanism being provided on the feeding bin, an air intake pipe and an exhaust pipe being respectively provided on the surface of the feeding bin, the air intake pipe extending into the interior of the feeding bin, and the exhaust pipe being connected to the air inlet of a fan; wherein, the filtering mechanism includes a filter cover disposed inside the feeding bin, the filter cover being a hollow structure with an upper cylindrical shape and a lower conical shape, the cylindrical surface of the filter cover having a plurality of filter holes evenly distributed thereon, the cylindrical surface of the filter cover being perpendicular to the top of the feeding bin, and the exhaust pipe being connected to the top of the filter cover.

[0007] In one embodiment, the filtration mechanism further includes a motor fixedly installed on the top of the feed hopper, the output shaft of the motor being fixedly connected to a rotating shaft extending to the bottom of the filter cover, and a scraper being provided on the surface of the rotating shaft.

[0008] In one embodiment, the scraper is fitted to the cylindrical surface of the filter cover, and the bottom of the filter cover has a limiting hole corresponding to the rotating shaft.

[0009] In one embodiment, a mounting ring is fitted onto the lower part of the rotating shaft surface, and multiple stirring rods are evenly distributed on the surface of the mounting ring.

[0010] In one embodiment, an infrared ranging sensor corresponding to the cylindrical surface of the filter cover is fixedly connected to the top of the feed hopper. Two infrared ranging sensors are provided, and the line connecting the two infrared ranging sensors is perpendicular to the axis of the filter cover.

[0011] In one embodiment, an inclined guide plate is provided at the bottom of the feed hopper, the lowest point of the inclined guide plate is connected to the feed inlet at the top of the hopper, and the surface of the inclined guide plate is provided with a wear-resistant ceramic coating.

[0012] In one embodiment, an inspection cover is hinged to the surface of the feed hopper, the surface of the inspection cover is provided with a transparent observation window, the surface of the inspection cover is provided with a sealing gasket, and a magnetic strip is provided at the contact position between the inspection cover and the feed hopper.

[0013] In one embodiment, a flow control valve is provided between the feed hopper and the feed barrel. The flow control valve is a solenoid valve and is electrically connected to an infrared ranging sensor.

[0014] Beneficial effects

[0015] 1. The above-mentioned automatic detection feeder is designed with a hollow structure of upper cylindrical and lower conical shape for the filter cover, and multiple filter holes are evenly opened on the cylindrical surface. After the raw material is sucked into the feed hopper, the guide effect of the conical bottom and the distribution of filter holes on the cylindrical side reduce the probability of the raw material adhering to the filter cover, realize the efficient separation of raw material and dust, and avoid the filter holes being blocked by raw material.

[0016] 2. By incorporating a motor, rotating shaft, and scraper into the filtration mechanism, the adsorbed raw materials on the surface of the filter cover are automatically cleaned without manual intervention, reducing maintenance costs. At the same time, the stirring rod prevents the raw materials from clumping and clogging, improving the smoothness of raw material transportation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the feeding hopper of this utility model;

[0020] Figure 3 This is a schematic diagram of the filtration mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the scraper and stirring rod of this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the feed hopper of this utility model.

[0023] Figure label:

[0024] 100. Material bucket; 200. Feed hopper; 210. Inspection cover; 300. Storage hopper; 400. Fan; 500. Filter mechanism; 510. Filter cover; 520. Filter hole; 530. Infrared ranging sensor; 540. Motor; 550. Rotating shaft; 560. Scraper; 570. Mounting ring; 580. Agitator rod; 590. Limiting ring. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The following is combined with Figure 1 - Figure 5 This invention describes an automatic detection and feeding machine.

[0027] In one embodiment, an automatic detection feeder includes: a material hopper 100, with a feed bin 200 fixedly connected to the top of the material hopper 100, a filter mechanism 500 provided on the feed bin 200, an air intake pipe and an exhaust pipe respectively provided on the surface of the feed bin 200, the air intake pipe extending into the interior of the storage bin 300, and the exhaust pipe connected to the air inlet of a fan 400; wherein, the filter mechanism 500 includes a filter cover 510 disposed inside the feed bin 200, the filter cover 510 is configured as a hollow structure with an upper cylindrical shape and a lower conical shape, a plurality of filter holes 520 are evenly opened on the cylindrical surface of the filter cover 510, the cylindrical surface of the filter cover 510 is perpendicular to the top of the feed bin 200, and the exhaust pipe is connected to the top of the filter cover 510.

[0028] like Figure 1 , Figure 3 and Figure 4As shown, the filtration mechanism 500 also includes a motor 540 fixedly installed on the top of the feed hopper 200. A rotating shaft 550 extending to the bottom of the filter cover 510 is fixedly connected to the output shaft end of the motor 540. A scraper 560 is provided on the surface of the rotating shaft 550. The scraper 560 is fitted against the cylindrical surface of the filter cover 510, and a limiting hole corresponding to the rotating shaft 550 is opened at the bottom of the filter cover 510. An infrared ranging sensor 530 corresponding to the cylindrical surface of the filter cover 510 is fixedly connected to the top of the feed hopper 200. Two infrared ranging sensors 530 are provided, and the line connecting the two infrared ranging sensors 530 is perpendicular to the axis of the filter cover 510.

[0029] In this embodiment, the motor 540 drives the rotating shaft 550 to rotate, which in turn drives the scraper 560 to rotate synchronously. Since the scraper 560 is in contact with the cylindrical surface of the filter cover 510, it can scrape off the raw material adsorbed on the surface of the filter cover 510, preventing the filter holes 520 from being blocked. The limiting hole at the bottom of the filter cover 510 limits the rotation of the rotating shaft 550, ensuring the stability of the rotation of the rotating shaft 550. Two infrared ranging sensors 530 are symmetrically distributed on both sides of the filter cover 510, which can accurately detect the adhesion of raw materials on the surface of the filter cover 510. When the detected distance decreases, the motor 540 can be triggered in time to achieve automatic cleaning.

[0030] It should be noted that the infrared ranging sensor 530 continuously emits infrared signals towards the cylindrical surface of the filter cover 510. When there is no material or only a small amount of material adhering to the surface of the filter cover 510, the infrared signal is reflected back by the surface of the filter cover 510. After receiving the reflected signal, the sensor calculates the initial distance between the sensor and the surface of the filter cover 510 based on the time difference between signal emission and reception, combined with the propagation speed of infrared light. When material adheres to the surface of the filter cover 510, the material will block part of the infrared signal, and the intensity and propagation path of the reflected signal will change, causing the time for the sensor to receive the reflected signal to change, and the calculated distance will be less than the initial distance. In this way, the infrared ranging sensor 530 can accurately detect the adhesion of material on the surface of the filter cover 510. When a decrease in distance is detected, the motor 540 can be triggered in time to achieve automatic cleaning.

[0031] When the infrared ranging sensor 530 detects a small distance and a large amount of raw material adhering to the surface of the filter cover 510, it indicates that the raw material accumulation rate in the feed hopper 200 is relatively fast. The controller sends a command to the flow control valve to increase its opening and accelerate the conveying speed of raw material to the feed hopper 100, thus preventing excessive accumulation of raw material in the feed hopper 200. When the infrared ranging sensor 530 detects a large distance and a small amount of raw material adhering to the surface of the filter cover 510, it indicates that the amount of raw material in the feed hopper 200 is relatively small. The flow control valve then reduces its opening to decrease the feeding speed and prevent excessive overflow of raw material from the feed hopper 100. When the distance is within the normal range, the flow control valve maintains a stable opening to ensure uniform feeding.

[0032] like Figure 2 , Figure 3 and Figure 4 As shown, a mounting ring 570 is fitted onto the lower part of the surface of the rotating shaft 550, and multiple stirring rods 580 are evenly distributed on the surface of the mounting ring 570. An inclined guide plate is provided at the bottom of the feed hopper 200, and the lowest point of the inclined guide plate is connected to the top feed inlet of the material tank 100. The surface of the inclined guide plate is coated with a wear-resistant ceramic coating. A maintenance cover 210 is hinged to the surface of the feed hopper 200. The maintenance cover 210 has a transparent observation window and a sealing gasket. A magnetic strip is provided at the contact point between the maintenance cover 210 and the feed hopper 200. A flow control valve, which is a solenoid valve, is installed between the feed hopper 200 and the material tank 100 and is electrically connected to an infrared ranging sensor 530.

[0033] In this embodiment, when the rotating shaft 550 rotates, it drives the mounting ring 570 and the stirring rod 580 to rotate, stirring the raw materials at the bottom of the feed hopper 200 to prevent clumping and ensure smooth flow. The inclined guide plate accelerates the conveying of raw materials to the feed tank 100 by means of its inclined angle, reducing raw material residue, while the wear-resistant ceramic coating extends the service life of the guide plate. The transparent observation window on the inspection cover 210 allows operators to observe the internal condition of the feed hopper 200. The sealing gasket and magnetic strip ensure the airtightness of the feed hopper 200, preventing negative pressure leakage and facilitating equipment maintenance. The flow control valve is linked with the infrared ranging sensor 530, which can automatically adjust the feeding flow rate according to the amount of raw materials, improving feeding accuracy. A limit ring 590 is fixedly connected at the center of the top of the feed hopper 200, and the filter cover 510 is snapped into the limit ring 590, facilitating the installation and removal of the filter cover 510. When the filter cover 510 needs cleaning or replacement, the operator can easily remove it from the limit ring 590, improving the convenience of equipment maintenance.

[0034] Working principle: After the blower 400 starts, it draws air in through the exhaust pipe, creating a negative pressure inside the feed hopper 200. At this time, the suction pipe draws the raw material from the storage hopper 300 into the feed hopper 200. After the raw material enters the feed hopper 200, under the action of the filter cover 510, dust enters the filter cover 510 through the filter holes 520 and is discharged through the exhaust pipe, while the raw material falls under the action of gravity. When the infrared ranging sensor 530 detects that the distance has decreased due to the adsorption of raw material on the surface of the filter cover 510, the motor 540 starts, driving the scraper 560 to scrape off the raw material, while the stirring rod 580 stirs the raw material at the bottom. The raw material finally enters the feed hopper 100 along the inclined guide plate.

[0035] It should be noted that the fan 400, controller, motor 540 and other components mentioned above are all devices with relatively mature existing technologies. The specific models can be selected according to actual needs. At the same time, the fan 400, motor 540 and controller can be powered by AC mains power. The specific power supply method can be selected according to the situation, which will not be elaborated here.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic detection and feeding machine, characterized in that, include: A material hopper (100) is fixedly connected to a feeding hopper (200) at the top. A filter mechanism (500) is provided on the feeding hopper (200). An air intake pipe and an exhaust pipe are respectively provided on the surface of the feeding hopper (200). The air intake pipe extends into the storage hopper (300). The exhaust pipe is connected to the air inlet of the fan (400). The filtering mechanism (500) includes a filter cover (510) disposed inside the feed hopper (200). The filter cover (510) is configured as a hollow structure with an upper cylindrical shape and a lower conical shape. The cylindrical surface of the filter cover (510) is evenly provided with a plurality of filter holes (520). The cylindrical surface of the filter cover (510) is perpendicular to the top of the feed hopper (200). The exhaust pipe is connected to the top of the filter cover (510).

2. The automatic detection feeder according to claim 1, characterized in that, The filtration mechanism (500) also includes a motor (540) fixedly installed on the top of the feed hopper (200). The output shaft of the motor (540) is fixedly connected to a rotating shaft (550) extending to the bottom of the filter cover (510). A scraper (560) is provided on the surface of the rotating shaft (550).

3. The automatic detection feeder according to claim 2, characterized in that, The scraper (560) is fitted to the cylindrical surface of the filter cover (510), and the bottom of the filter cover (510) is provided with a limiting hole corresponding to the rotating shaft (550).

4. The automatic detection feeder according to claim 2, characterized in that, A mounting ring (570) is fitted onto the lower part of the surface of the rotating shaft (550), and multiple stirring rods (580) are evenly distributed on the surface of the mounting ring (570).

5. The automatic detection feeder according to claim 1, characterized in that, An infrared ranging sensor (530) corresponding to the cylindrical surface of the filter cover (510) is fixedly connected to the top of the feed hopper (200). There are two infrared ranging sensors (530), and the line connecting the two infrared ranging sensors (530) is perpendicular to the axis of the filter cover (510).

6. The automatic detection feeder according to claim 1, characterized in that, The bottom of the feed hopper (200) is provided with an inclined guide plate, the lowest point of which is connected to the top feed inlet of the feed hopper (100), and the surface of the inclined guide plate is provided with a wear-resistant ceramic coating.

7. The automatic detection feeder according to claim 1, characterized in that, The feed hopper (200) is hinged to a maintenance cover (210), the maintenance cover (210) is provided with a transparent observation window, the maintenance cover (210) is provided with a sealing gasket, and a magnetic strip is provided at the contact position between the maintenance cover (210) and the feed hopper (200).

8. The automatic detection feeder according to claim 1, characterized in that, A flow control valve is provided between the feed hopper (200) and the material barrel (100). The flow control valve is a solenoid valve and is electrically connected to the infrared ranging sensor (530).

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