Feeding machine capable of preventing materials from bridging and automatic metering equipment

Abstract

The utility model discloses a feeding machine capable of preventing materials from bridging and automatic metering equipment, and the feeding machine comprises a material barrel, a feeding hopper, a feeding hopper, a feeding hopper and a feeding hopper, wherein the upper end and the lower end of the feeding hopper are provided with openings; the arch breaking device is arranged in the material barrel and is of a rod-shaped structure, and a plurality of mounting holes are uniformly distributed in the surface of the arch breaking device in the length direction of the arch breaking device; the multiple arch breaking bars are arranged, and the arch breaking bars are arranged in the mounting holes; the scraping rod is of a rod-shaped structure, the scraping rod is installed on the arch breaker through a connecting rod, and the scraping rod is attached to the inner wall of the material barrel; the driving assembly is connected with the arch breaker and used for driving the arch breaker to rotate in a fixed-axis mode. According to the feeding machine capable of preventing the materials from bridging and the automatic metering equipment, through the cooperative action of the scraping rod and the arch breaking rod, stress balance between the materials and the inner wall of the material barrel can be avoided, material stacking is prevented, continuous and stable output of the feeder is ensured, and the production quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of metering equipment technology, and more specifically, to a feeder that prevents material bridging. Furthermore, this utility model also relates to an automatic metering device including the aforementioned feeder that prevents material bridging. Background Technology

[0002] In the process of feeding various materials, the differences in the physical properties of different materials are often a key factor determining the accuracy and stability of the feeding machine. Especially for some powder materials with poor flowability and easy bridging, the material will form a bridge and not fall off during the feeding process. It is necessary to manually break up and shake the material, which will cause the feeding to stop intermittently, which does not meet the conditions for continuous production and ultimately leads to quality problems.

[0003] Anti-bridging devices can be divided into two types according to their arch-breaking methods: vibration-type and agitation-type. The principle of vibration-type arch breaking is to break the force balance formed by the material by vibrating the wall of the material barrel, causing the material to recombine under the action of gravity. It is usually powered by pneumatic or electric motors, and the arch breaking is performed intermittently with a certain force and frequency. The principle of agitation-type arch breaking is to use some rotating devices to stir the material inside, making the material flow and thus preventing the formation of arches.

[0004] In continuous production processes, loss-in-weight feeders are often used for feeding. If an oscillating arch-breaking device is used, the fluctuations generated by the vibration of the material bucket will affect the accuracy of the loss-in-weight scale, resulting in uneven and unstable feeding. Therefore, only a gentler stirring arch-breaking device can be used. The fluctuations in material weight caused by uniform stirring can be ignored, which meets the conditions for continuous production.

[0005] When the hopper of a loss-in-weight feeder is full, the material accumulates inside and is compacted due to gravity. The feeder uses a single or twin screw to force the material out of the hopper. After the material at the bottom is discharged, the compacted material at the top experiences bridging, rat holes, and uneven powder density due to force balance.

[0006] Existing solutions often use a central spindle to drive breakers installed at different heights to disperse materials. However, for some special materials with high viscosity, the breakers that are too thin can break the adhesion between layers temporarily but cannot make them fall off completely. The materials stuck to the barrel wall will still accumulate layer by layer, forming an "inner shell" on the inner wall of the barrel. Over time, the materials may deteriorate and affect production quality.

[0007] In conclusion, ensuring production quality is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0008] In view of this, the purpose of this utility model is to provide a feeder that prevents material bridging. The drive component of the feeder can drive the arch breaker to rotate, and the arch breaker can drive the scraper to scrape the material near the inner wall of the hopper, and break the material by the arch breaker, so as to ensure the continuous and stable output of the feeder and guarantee the production quality.

[0009] Another objective of this invention is to provide an automatic metering device that includes the aforementioned anti-material bridging feeder.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A feeder for preventing material bridging includes:

[0012] The material bucket has openings at both the top and bottom;

[0013] An arch breaker is installed inside the material bucket. The arch breaker is a rod-shaped structure, and multiple mounting holes are evenly distributed on the surface of the arch breaker along its length.

[0014] Multiple arch-breaking rods are provided, and the arch-breaking rods are disposed in the mounting holes;

[0015] The scraper is a rod-shaped structure. The scraper is installed on the arch breaker through a connecting rod, and the scraper is fitted to the inner wall of the material bucket.

[0016] A drive component is connected to the arch breaker and is used to drive the arch breaker to rotate on a fixed axis.

[0017] Preferably, the arch-breaking rod is a rod-shaped component, the arch-breaking device is arranged perpendicularly to the arch-breaking rod, and the arch-breaking device is provided with at least two rows of the arch-breaking rod.

[0018] Preferably, each row of the arch-breaking rods is arranged parallel to the length of the arch-breaking device, and multiple rows of the arch-breaking rods are evenly distributed around the circumference of the arch-breaking device. The mounting hole is a gap hole, and the arch-breaking rod can slide along the gap hole and rotate around a fixed axis.

[0019] Preferably, the connecting rod passes through the arch breaker, there are two connecting rods that are parallel to each other, the connecting rod is perpendicular to the arch breaker, and the scraper is a cylindrical structure.

[0020] Preferably, the material bucket has a frustum-shaped structure that is wider at the top and narrower at the bottom, and the two connecting rods have different lengths, with the connecting rod on the upper side being longer than the connecting rod on the lower side.

[0021] Preferably, the top of the material hopper is provided with a fixed cover plate, and a through hole is provided at the center of the fixed cover plate, and the driving component is located at the through hole on the fixed cover plate.

[0022] Preferably, the top of the material bucket is provided with a pin hole, and the fixed cover plate is connected to the material bucket by a pin.

[0023] Preferably, the fixed cover plate includes a fixed plate and a movable plate, the fixed plate is engaged with the material bucket by the pin, and the movable plate is rotatably connected to the fixed plate.

[0024] Preferably, the driving component is a motor, which is detachably connected to the fixed cover plate and the arch breaker.

[0025] An automatic metering device includes a material bridging feeder, wherein the material bridging feeder is any of the above-mentioned material bridging feeders.

[0026] This utility model provides a feeder for preventing material bridging. The feeder's hopper contains an arch breaker with multiple mounting holes for connecting rods or arch-breaking bars. The connecting rods are connected to scraper rods. When the arch breaker is driven to rotate on a fixed axis by a drive assembly, the scraper rods, attached to the inner wall of the hopper, effectively scrape away the material adhering to the inner wall, preventing the material from forming a force balance with the inner wall and avoiding material accumulation. Simultaneously, the scraped material is agitated by the arch-breaking bars, ensuring stable and efficient arch breaking, guaranteeing continuous and stable output from the feeder, and ensuring production quality. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of 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 only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the anti-material bridging feeder provided by this utility model.

[0029] Figure 2 This is a structural schematic diagram of the arch-breaking device, arch-breaking rod, and scraper assembly provided by this utility model.

[0030] Figure 3 This is a schematic diagram of the structure of the fixing cover plate provided by this utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the material bucket provided by this utility model.

[0032] Figure label:

[0033] 1-Material bucket; 2-Arch breaker; 3-Arch breaker rod; 4-Scraper rod; 5-Connecting rod; 6-Fixed cover plate; 7-Pin hole; 8-Pin; 9-Fixed plate; 10-Moving plate; 11-Motor. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] The core of this utility model is to provide a feeder that prevents material bridging. This feeder can scrape the material on the inner wall of the hopper, preventing the material from forming a force balance with the inner wall of the hopper, ensuring continuous and stable output of the feeder, and guaranteeing production quality.

[0036] Another core aspect of this invention is to provide an automatic metering device that includes the aforementioned anti-material bridging feeder.

[0037] This application provides a material bridging feeder, comprising: a material hopper 1, an arch breaker 2, an arch breaker rod 3, a scraper 4, and a drive assembly;

[0038] The material bucket 1 has openings at both the top and bottom;

[0039] The arch breaker 2 is installed inside the material bucket 1. The arch breaker 2 is a rod-shaped structure, and multiple mounting holes are evenly distributed on the surface of the arch breaker 2 along its length.

[0040] Multiple arch-breaking rods 3 are provided, and the arch-breaking rods 3 are located in the mounting holes;

[0041] The scraper 4 is a rod-shaped structure. The scraper 4 is installed on the arch breaker 2 through the connecting rod 5. The scraper 4 is fitted to the inner wall of the material bucket 1.

[0042] The drive assembly is connected to the arch breaker 2 and is used to drive the arch breaker 2 to rotate on a fixed axis.

[0043] Specifically, the material bucket 1 has openings at both the top and bottom. The upper opening is used to add material into the material bucket 1, and the lower opening is used to discharge material. An arch breaker 2 is installed inside the material bucket 1. The arch breaker 2 has multiple mounting holes evenly arranged along its length. An arch breaker rod 3 or a connecting rod is installed in the mounting holes. The connecting rod is connected to the scraper rod 4. The inner wall of the material bucket 1 is in contact with the scraper rod 4. When the drive component drives the arch breaker 2 to rotate on a fixed axis, the scraper rod 4 can slide along the inner wall of the material bucket 1 and scrape the material close to the material bucket 1 to prevent the material from stacking up and forming an "inner shell". The scraped material can be agitated by the arch breaker rod 3 to prevent material bridging. The setting of the scraper rod 4 can better facilitate the agitation of the arch breaker rod 3, ensuring stable and efficient arch breaking of the material and ensuring the continuous and stable output of the feeder.

[0044] Optionally, a controllable sealing plate can be installed at the bottom of the material hopper 1. The sealing plate is closed when adding material to the material hopper 1, and opened when material needs to be supplied from below the material hopper 1.

[0045] Optionally, the scraper 4 and the material bucket 1 may not be fitted together; a certain gap may be maintained between them to avoid direct friction between the scraper 4 and the material bucket 1, thereby improving the service life of the equipment.

[0046] Based on the above embodiments, the arch-breaking rod 3 is a rod-shaped component, the arch-breaking device 2 is arranged perpendicularly to the arch-breaking rod 3, and at least two rows of arch-breaking rods 3 are provided on the arch-breaking device 2.

[0047] Specifically, the arch-breaking rod 3 is a cylindrical metal rod to ensure that the arch-breaking rod 3 has sufficient structural strength and ensures the mixing ability of the material during the rotation of the arch-breaking device 2. Since the material in the material bucket 1 moves downward under the action of gravity, at least two rows of arch-breaking rods 3 need to be set on the arch-breaking device 2 to ensure mixing efficiency.

[0048] Based on the above embodiment, each row of arch-breaking rods 3 is arranged parallel to the length direction of the arch-breaking device 2, and multiple rows of arch-breaking rods 3 are evenly distributed along the circumference of the arch-breaking device 2. The mounting holes are gap holes, and the arch-breaking rods 3 can slide along the gap holes and rotate on a fixed axis.

[0049] Specifically, each row of arch-breaking rods 3 is evenly arranged downwards along the arch-breaking device 2, that is, the center points of each row of mounting holes can be connected in a straight line. Each mounting hole connected to the arch-breaking rod 3 is preferably a gap hole. The arch-breaking rod 3 is set in the gap hole and can slide along the gap hole, and can also rotate on a fixed axis. In this way, the arch-breaking ability can be improved and the situation of powder jamming and powder retention can be reduced.

[0050] Optionally, the mounting hole can be a threaded hole, and the end of the arch-breaking rod 3 is provided with an external thread, so that the arch-breaking rod 3 and the arch-breaking device 2 are threadedly connected, that is, the arch-breaking rod 3 and the arch-breaking device 2 are detachably connected. The appropriate arch-breaking rod 3 can be replaced according to the size of the material bucket 1 to improve the adaptability of the equipment.

[0051] Based on the above embodiment, the connecting rod 5 passes through the arch breaker 2, there are two connecting rods 5 that are parallel to each other, the connecting rod 5 is perpendicular to the arch breaker 2, and the scraper 4 is a cylindrical structure.

[0052] Specifically, the mounting hole on the arch breaker 2 for installing the connecting rod 5 is a through hole that penetrates the arch breaker 2. That is, when the connecting rod 5 is set in the through hole, its two ends can be close to the inner wall of the material bucket 1. The connecting rod 5 is connected to the scraper 4. The scraper 4 is preferably a cylindrical rod. Since the scraper 4 abuts against the inner wall of the material bucket 1, the contact area between the scraper 4 and the inner wall of the material bucket 1 can be minimized, thereby reducing the friction between the scraper 4 and the inner wall of the material bucket 1 and improving the service life of the equipment.

[0053] Optionally, the connecting rod 5, the arch breaker 2, and the scraper 4 are integrated into one component to ensure structural reliability when the scraper 4 scrapes the material.

[0054] Based on the above embodiment, the material barrel 1 has a frustum-shaped structure that is wider at the top and narrower at the bottom, and the two connecting rods 5 have different lengths, with the connecting rod 5 on the upper side having a longer length than the connecting rod 5 on the lower side.

[0055] Specifically, the material hopper 1 has a common inverted frustum-shaped structure. Correspondingly, the two connecting rods 5 on the arch breaker 2 have different lengths. The connecting rod 5 located on the upper side, closer to the drive component, has a longer length than the connecting rod 5 further away from the drive component. A visible window is provided on the side wall of the material hopper 1, through which the operator can directly observe the material status inside the material hopper 1.

[0056] In some embodiments, a fixed cover plate 6 is provided on the top of the material barrel 1, and a through hole is provided at the center of the fixed cover plate 6. The driving component is located at the through hole on the fixed cover plate 6.

[0057] Specifically, a fixed cover plate 6 is set on the top of the material bucket 1. The through hole at the center of the fixed cover plate 6 should correspond to the central axis of the material bucket 1. The drive component is set at the through hole. The output end of the drive component can pass through the fixed cover plate 6 and connect with the arch breaker 2. At this time, the central axis of the arch breaker 2 overlaps with the central axis of the material bucket 1. The drive component drives the arch breaker 2 to rotate on a fixed axis. In this way, the scraper 4 can also stick to the inner wall of the material bucket 1 and slide along the inner wall of the material bucket 1, so as to scrape the material.

[0058] Based on the above embodiment, a pin hole 7 is provided at the top of the material barrel 1, and the fixed cover plate 6 is connected to the material barrel 1 by a pin 8.

[0059] Specifically, the top of the material barrel 1 is provided with an extension that extends outward in the circumferential direction. At least two evenly distributed pin holes 7 are provided on the extension. Corresponding pin holes 7 are provided on the fixed cover plate 6. The fixed cover plate 6 and the material barrel 1 are connected by pins 8 to prevent the two from rotating relative to each other.

[0060] Based on the above embodiments, the fixed cover plate 6 includes a fixed plate 9 and a movable plate 10. The fixed plate 9 is snapped into the material bucket 1 by a pin 8, and the movable plate 10 is rotatably connected to the fixed plate 9.

[0061] Specifically, the fixed cover plate 6 consists of two parts. The pin holes 7 are evenly distributed on the edge of the fixed plate 9. The drive component is also set on the fixed plate 9. The movable plate 10 is rotatably connected to the fixed plate 9. When the movable plate 10 is fastened on the material bucket 1, it can prevent the powdery material from flying during the stirring process of the arch-breaking rod 3, thus avoiding waste and pollution of the production environment. After the movable plate 10 is rotated, a loading channel can be left to facilitate the addition of materials into the material bucket 1.

[0062] Based on the above embodiments, the driving component is a motor 11, which is detachably connected to the fixed cover plate 6 and the arch breaker 2.

[0063] Specifically, multiple mounting holes are provided on the fixing plate 9, and the motor 11 can be detachably connected to the fixing plate 9. The motor 11 is also detachably connected to the arch breaker 2, and motors 11 with different power can be replaced according to different types and quantities of materials.

[0064] Optionally, the motor 11 can be paired with a reducer for easy torque adjustment.

[0065] In addition to the aforementioned anti-material bridging feeder, this utility model also provides an automatic metering device that includes the anti-material bridging feeder disclosed in the above embodiments. For the structure of other parts of the automatic metering device, please refer to the prior art, which will not be repeated here.

[0066] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0067] The above provides a detailed description of the feeder and automatic metering device for preventing material bridging provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A feeder for preventing material bridging, characterized in that, include: The material bucket (1) has openings at both the top and bottom ends; An arch breaker (2) is installed inside the material bucket (1). The arch breaker (2) is a rod-shaped structure, and multiple mounting holes are evenly distributed on the surface of the arch breaker (2) along its length. Multiple arch-breaking rods (3) are provided, and the arch-breaking rods (3) are provided in the mounting holes; The scraper (4) is a rod-shaped structure. The scraper (4) is installed on the arch breaker (2) through the connecting rod (5). The scraper (4) is fitted to the inner wall of the material bucket (1). A drive assembly is connected to the arch breaker (2) and is used to drive the arch breaker (2) to rotate on a fixed axis; The arch-breaking rod (3) is a rod-shaped component, and the arch-breaking device (2) is arranged perpendicularly to the arch-breaking rod (3). At least two rows of the arch-breaking rod (3) are arranged on the arch-breaking device (2). Each row of the arch-breaking rods (3) is arranged parallel to the length direction of the arch-breaking device (2), and multiple rows of the arch-breaking rods (3) are evenly distributed along the circumference of the arch-breaking device (2). The mounting hole is a gap hole, and the arch-breaking rods (3) can slide along the gap hole and rotate on a fixed axis.

2. The feeder for preventing material bridging according to claim 1, characterized in that, The connecting rod (5) passes through the arch breaker (2). There are two connecting rods (5) that are parallel to each other. The connecting rod (5) is perpendicular to the arch breaker (2). The scraper (4) is a cylindrical structure.

3. The feeder for preventing material bridging according to claim 2, characterized in that, The material bucket (1) has a frustum-shaped structure that is wider at the top and narrower at the bottom. The two connecting rods (5) have different lengths, with the connecting rod (5) on the upper side having a longer length than the connecting rod (5) on the lower side.

4. The feeder for preventing material bridging according to claim 1, characterized in that, The top of the material hopper (1) is provided with a fixed cover plate (6), and a through hole is provided at the center of the fixed cover plate (6). The driving component is located at the through hole on the fixed cover plate (6).

5. The feeder for preventing material bridging according to claim 4, characterized in that, The top of the material bucket (1) is provided with a pin hole (7), and the fixed cover plate (6) is connected to the material bucket (1) by a pin (8).

6. The feeder for preventing material bridging according to claim 5, characterized in that, The fixed cover plate (6) includes a fixed plate (9) and a movable plate (10). The fixed plate (9) is engaged with the material bucket (1) by the pin (8), and the movable plate (10) is rotatably connected to the fixed plate (9).

7. The feeder for preventing material bridging according to any one of claims 4 to 6, characterized in that, The driving component is a motor (11), which is detachably connected to the fixed cover plate (6) and the arch breaker (2).

8. An automatic metering device, comprising a feeder to prevent material bridging, characterized in that, The material bridging feeder is the material bridging feeder as described in any one of claims 1 to 7.

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