Vacuum feeding machine capable of controlling feeding speed

Abstract

This utility model discloses a vacuum feeder with controllable suction speed, including a feeding cylinder. A controller is provided on the surface of the feeding cylinder, and a suction mechanism is provided on the surface of the feeding cylinder. A filtration and cleaning mechanism is provided inside the feeding cylinder. The filtration and cleaning mechanism includes a cleaning component, comprising a support plate mounted on the top of the inner cavity of the feeding cylinder and a geared motor mounted on the surface of the feeding cylinder. This utility model relates to the field of vacuum feeder technology. This vacuum feeder with controllable suction speed, through the filtration and cleaning mechanism, utilizes a geared motor and a transmission component to drive a striking rod to slide periodically, continuously striking the impact block of the filtration component. Combined with the spring reset action of the reset component, this causes the frame plate to vibrate, efficiently removing residual material from the filter screen, preventing filter clogging. The entire cleaning process requires no machine downtime, reducing manual intervention, ensuring continuous production, and improving equipment operating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of vacuum feeder technology, specifically a vacuum feeder with controllable suction speed. Background Technology

[0002] The reference patent title is: A Vacuum Feeder (Authorization Announcement No.: CN221875754U, Authorization Announcement Date: 2024.10.22), which includes a feeder body and a feeding hose. A handheld tube is fixed to the bottom of the feeding hose, and an adjusting tube is threaded onto the handheld tube. Several support rods are hinged to the bottom of the adjusting tube, and these support rods collectively support an umbrella-shaped support cloth. A movable rod is hinged to the middle of each support rod, and the other end of the movable rod is hinged to a slip ring. The slip ring is movably sleeved on the adjusting tube. A support ring is fixed at the top, and an adjusting screw is fixed at the upper end of the slip ring. The adjusting screw moves through the through hole on the support ring and is threadedly connected to the adjusting sleeve. The bottom end of the adjusting sleeve is rotatably connected to the top wall of the support ring. A rotating sleeve that rotates with the support ring is also movably mounted on the hand-held tube. The rotating sleeve has an internal toothed ring, and the adjusting sleeve has an external toothed ring that meshes with the internal toothed ring. By retracting and extending the flexible support cloth, the contact area between the support cloth and the material is changed, thereby retracting or supporting the hand-held tube of the suction gun. The operation is simple and convenient.

[0003] Based on the aforementioned documents, vacuum feeders, as clean and efficient material conveying equipment, utilize negative pressure generated by a vacuum pump to achieve material intake and conveying, and have been widely used in various industrial fields. However, existing vacuum feeders are prone to clogging of filter components by impurities or fine powders during material conveying, leading to a decrease in vacuum level in the feeding cylinder and unstable suction speed. Traditional equipment requires manual disassembly and cleaning of filter components after shutdown, which not only interrupts the production process but also increases the labor intensity of operators. Furthermore, the suction speed of existing equipment largely depends on manual adjustment of vacuum pump power or pipeline valves, making it difficult to achieve precise control based on material characteristics (such as granular, powdery, or viscous materials) and production needs. For example, for easily breakable granular materials, an excessively fast suction speed can cause material collision and breakage, while for powdery materials with poor flowability, an excessively slow suction speed reduces production efficiency. Therefore, this utility model provides a vacuum feeder with controllable suction speed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a vacuum feeder with controllable suction speed, which solves the problems of difficulty in accurately controlling the suction speed of existing vacuum feeders, easy clogging of filter components, and the need to stop the machine for cleaning, resulting in unstable suction efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vacuum feeder with controllable suction speed, comprising a feed cylinder, a controller on the surface of the feed cylinder, a suction mechanism on the surface of the feed cylinder, and a filtration and cleaning mechanism in the inner cavity of the feed cylinder, the filtration and cleaning mechanism comprising: a cleaning component, including a support plate mounted on the top of the inner cavity of the feed cylinder and a reduction motor mounted on the surface of the feed cylinder, one end of the output shaft of the reduction motor being fixedly connected to a rotating rod via a coupling, the surface of the rotating rod being rotatably connected to the interior of the support plate, one end of the rotating rod being fixedly connected to a rotating disk, the surface of the rotating disk driving a striking rod to slide via a transmission component; and a filtration component, disposed on the inner wall of the feed cylinder, for filtering the material.

[0006] Preferably, the transmission assembly includes a transmission plate installed on the inner wall of the feed cylinder and a transmission rod rotatably installed on the surface of the rotating disk. The interior of the transmission plate is slidably connected to the surface of the striking rod, and one end of the transmission rod is rotatably connected to the top end of the striking rod.

[0007] Preferably, the filter assembly includes a support plate installed on the inner wall of the feed cylinder, a frame plate slidably connected to the inner surface of the support plate, a filter screen plate installed on the inner wall of the frame plate, a cross plate installed on the top of the frame plate, an impact block installed on the top of the cross plate, the impact block being located below the striking rod, and a reset assembly provided on the surface of the frame plate.

[0008] Preferably, the reset assembly includes a reset rod mounted on the surface of the frame plate and a reset post mounted on the bottom of the support plate. The interior of the reset post is slidably connected to the surface of the reset rod. A reset spring is fixedly connected to one end of the reset rod, and one end of the reset spring is fixedly connected to the bottom of the inner cavity of the reset post.

[0009] Preferably, the suction mechanism includes a suction pipe installed on one side of the feed cylinder and a negative pressure pipe installed on the other side of the feed cylinder. A vacuum pump is installed at one end of the negative pressure pipe, and a vacuum degree regulating device is provided on the negative pressure pipe to regulate the vacuum degree inside the negative pressure pipe. A flow detection device is provided on the suction pipe to detect the material conveying flow rate.

[0010] Preferably, the inner wall of the feeding cylinder is equipped with a vacuum sensor, which is electrically connected to the controller.

[0011] Beneficial effects This invention provides a vacuum feeder with controllable material suction speed. Compared with the prior art, it has the following advantages: 1. This vacuum feeder with controllable suction speed is equipped with a filter cleaning mechanism. The geared motor and transmission components drive the striking rod to slide periodically and continuously strike the impact block of the filter component. Combined with the spring reset action of the reset component, the frame plate vibrates, effectively removing residual material from the filter screen, avoiding filter blockage. The entire cleaning process does not require machine shutdown, reduces manual intervention, ensures continuous production, and improves equipment operating efficiency.

[0012] 2. This vacuum feeder with controllable suction speed monitors the material flow rate in real time through a flow detection device. The controller precisely adjusts the vacuum adjustment device based on the difference between the target suction speed and the actual flow rate to change the vacuum level in the negative pressure pipeline, thereby achieving automated and precise control of the suction speed. At the same time, the vacuum sensor monitors the vacuum level in the feeding cylinder in real time. When the vacuum level drops due to filter blockage, the controller simultaneously starts the cleaning component to clean the filter screen and adjusts the vacuum adjustment device to compensate for vacuum loss. This dual protection ensures stable suction speed and adapts to the conveying needs of materials with different characteristics. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the external structure of this utility model from the front view. Figure 2 This is a cross-sectional view of the internal structure of the feeding cylinder of this utility model; Figure 3 This is a three-dimensional schematic diagram of the external structure of this utility model from the rear view. Figure 4 This is an exploded structural diagram of the filter assembly of this utility model.

[0014] In the diagram: 1-Feeding cylinder, 2-Controller, 3-Suction mechanism, 31-Suction pipe, 32-Negative pressure pipe, 33-Vacuum pump, 34-Vacuum degree regulating device, 35-Flow detection device, 4-Filter cleaning mechanism, 41-Cleaning component, 411-Support plate, 412-Gear motor, 413-Rotating rod, 414-Rotating disc, 415-Impact rod, 42-Filter component, 421-Bearing plate, 422-Frame plate, 423-Filter screen plate, 424-Cross plate, 425-Impact block, 5-Transmission component, 51-Transmission plate, 52-Transmission rod, 6-Reset component, 61-Reset rod, 62-Reset column, 63-Reset spring. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-4 This utility model provides a technical solution: A vacuum feeder with controllable suction speed includes a feeding cylinder 1, a controller 2 on the surface of the feeding cylinder 1, a suction mechanism 3 on the surface of the feeding cylinder 1, and a filtration and cleaning mechanism 4 in the inner cavity of the feeding cylinder 1. The filtration and cleaning mechanism 4 includes: a cleaning component 41, including a support plate 411 mounted on the top of the inner cavity of the feeding cylinder 1 and a reduction motor 412 mounted on the surface of the feeding cylinder 1. One end of the output shaft of the reduction motor 412 is fixedly connected to a rotating rod 413 via a coupling. The surface of the rotating rod 413 is rotatably connected to the interior of the support plate 411. One end of the rotating rod 413 is fixedly connected to a rotating disk 414. The surface of the rotating disk 414 drives a striking rod 415 to slide via a transmission component 5; and a filtration component 42, disposed on the inner wall of the feeding cylinder 1, for filtering materials.

[0017] The controller 2 is electrically connected to the geared motor 412, the vacuum pump 33, the vacuum degree regulating device 34, and the flow detection device 35, respectively. A rubber striking head is installed at the bottom of the striking rod 415; The bottom of the feeding cylinder 1 is equipped with a discharge pipe, which is fitted with a discharge valve. The bottom of the discharge pipe is also fitted with a connecting flange for connecting to external mixing equipment, conveying equipment, or storage equipment.

[0018] Preferably, the transmission assembly 5 includes a transmission plate 51 installed on the inner wall of the feeding cylinder 1 and a transmission rod 52 rotatably installed on the surface of the rotating disk 414. The interior of the transmission plate 51 is slidably connected to the surface of the striking rod 415, and one end of the transmission rod 52 is rotatably connected to the top end of the striking rod 415.

[0019] The transmission plate 51 is used to limit the up and down sliding of the striking rod 415; By incorporating a filter cleaning mechanism 4, a reduction motor 412, in conjunction with a transmission assembly 5, drives a striking rod 415 to slide periodically, continuously striking the impact block 425 of the filter assembly 42. Combined with the spring reset action of the reset assembly 6, this causes the frame plate 422 to vibrate, effectively removing residual materials from the filter screen 423, preventing filter blockage. The entire cleaning process requires no machine downtime, reducing manual intervention, ensuring continuous production, and improving equipment operating efficiency.

[0020] Preferably, the filter assembly 42 includes a support plate 421 installed on the inner wall of the feed cylinder 1, a frame plate 422 slidably connected to the inner surface of the support plate 421, a filter screen plate 423 installed on the inner wall of the frame plate 422, a cross plate 424 installed on the top of the frame plate 422, an impact block 425 installed on the top of the cross plate 424, the impact block 425 is located below the striking rod 415, and a reset assembly 6 is provided on the surface of the frame plate 422.

[0021] An annular sealing gasket is provided at the sliding connection between the inner surface of the bearing plate 421 and the surface of the frame plate 422; The filter screen 423 has two sets, both made of stainless steel; Preferably, the reset assembly 6 includes a reset rod 61 mounted on the surface of the frame plate 422 and a reset post 62 mounted on the bottom of the support plate 421. The interior of the reset post 62 is slidably connected to the surface of the reset rod 61. A reset spring 63 is fixedly connected to one end of the reset rod 61, and one end of the reset spring 63 is fixedly connected to the bottom of the inner cavity of the reset post 62.

[0022] Preferably, the suction mechanism 3 includes a suction pipe 31 installed on one side of the feeding cylinder 1 and a negative pressure pipe 32 installed on the other side of the feeding cylinder 1. A vacuum pump 33 is installed at one end of the negative pressure pipe 32, and a vacuum degree adjustment device 34 is provided on the negative pressure pipe 32 to adjust the vacuum degree in the negative pressure pipe 32. A flow detection device 35 is provided on the suction pipe 31 to detect the material conveying flow rate.

[0023] Vacuum regulating device 34 adopts an electric butterfly valve; The flow monitoring device 35 uses a microwave flow sensor; Preferably, the inner wall of the feeding cylinder 1 is equipped with a vacuum sensor, which is electrically connected to the controller 2.

[0024] The flow rate is monitored in real time by the flow detection device 35. The controller 2 adjusts the vacuum adjustment device 34 precisely according to the difference between the target suction speed and the actual flow rate to change the vacuum in the negative pressure pipeline 32, so as to realize the automatic and precise control of the suction speed. At the same time, the vacuum sensor monitors the vacuum in the feeding cylinder 1 in real time. When the vacuum drops due to filter blockage, the controller 2 simultaneously starts the cleaning component 41 to clean the filter screen 423 and adjusts the vacuum adjustment device 34 to compensate for the vacuum loss. This dual protection ensures the stability of the suction speed and adapts to the conveying needs of materials with different characteristics.

[0025] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0026] The work process is as follows: S1. Parameter preset: The operator inputs the target suction speed through the touch screen of the controller 2, and the controller 2 converts the target speed into the corresponding flow threshold and stores it; S2. Start suction: Start vacuum pump 33, negative pressure pipe 32 to form negative pressure in feed cylinder 1, material is sucked into feed cylinder 1 through suction pipe 31, after being filtered by filter screen plate 423, impurities are trapped above filter screen plate 423, and clean material falls into the bottom of feed cylinder 1. S3. Suction Speed ​​Control: The flow detection device 35 detects the material flow rate in the suction pipe 31 in real time and transmits the signal to the controller 2. The controller 2 converts the actual flow rate into the actual suction speed and compares it with the target speed. If the actual speed is greater than the target speed, the controller 2 controls the vacuum adjustment device 34 to reduce the valve opening, thereby reducing the vacuum in the negative pressure pipeline 32 and thus reducing the material suction speed. If the actual speed is less than the target speed, the controller 2 controls the vacuum adjustment device 34 to increase the valve opening, improve the vacuum, and increase the material suction speed.

[0027] S4. Filtration Cleaning and Vacuum Compensation: The vacuum sensor detects the vacuum level inside the feeding cylinder 1 in real time. When the vacuum level is lower than the set threshold, the controller 2 determines that the filter screen plate 423 is blocked and immediately starts the reduction motor 412. The reduction motor 412 drives the rotating rod 413 and the rotating disk 414 to rotate. As the rotating disk 414 rotates, one end of the transmission rod 52 rotates on the surface of the rotating disk 414, causing the other end of the transmission rod 52 to rotate at the top of the striking rod 415. This causes the striking rod 415 to move up and down along the sliding hole of the transmission plate 51, continuously striking the impact block 425. After being impacted, the frame plate 422 vibrates along the sliding groove of the bearing plate 421. The return spring 63 is compressed and then rebounds, increasing the vibration amplitude of the frame plate 422 and efficiently removing residual materials on the filter screen plate 423. During the cleaning process, if the vacuum level is not restored in time, the controller 2 synchronously increases the opening of the vacuum level adjustment device valve to compensate for vacuum loss and maintain a stable suction speed. S5. Shutdown and unloading: When the material reaches the set material level at the bottom of the feeding cylinder 1, the controller 2 shuts off the vacuum pump 33 and opens the unloading valve at the bottom of the feeding cylinder 1 to complete the unloading, and then enters the next cycle.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum feeding machine capable of controlling the feeding speed, comprising a feeding cylinder (1), characterized in that: The surface of the feeding cylinder (1) is provided with a controller (2), the surface of the feeding cylinder (1) is provided with a suction mechanism (3), and the inner cavity of the feeding cylinder (1) is provided with a filtration and cleaning mechanism (4). The filtration and cleaning mechanism (4) includes: a cleaning component (41), including a support plate (411) installed on the top of the inner cavity of the feeding cylinder (1) and a reduction motor (412) installed on the surface of the feeding cylinder (1). One end of the output shaft of the reduction motor (412) is fixedly connected to a rotating rod (413) through a coupling. The surface of the rotating rod (413) is rotatably connected to the inside of the support plate (411). One end of the rotating rod (413) is fixedly connected to a rotating disk (414). The surface of the rotating disk (414) drives the striking rod (415) to slide through the transmission component (5); and a filtration component (42), which is set on the inner wall of the feeding cylinder (1) for filtering materials.

2. The vacuum feeding machine capable of controlling the feeding speed according to claim 1, characterized in that: The transmission assembly (5) includes a transmission plate (51) installed on the inner wall of the feed cylinder (1) and a transmission rod (52) rotatably installed on the surface of the rotating disk (414). The interior of the transmission plate (51) is slidably connected to the surface of the striking rod (415), and one end of the transmission rod (52) is rotatably connected to the top end of the striking rod (415).

3. The vacuum feeder with controllable suction speed according to claim 1, characterized in that: The filter assembly (42) includes a support plate (421) installed on the inner wall of the feed cylinder (1). A frame plate (422) is slidably connected to the inner surface of the support plate (421). A filter screen plate (423) is installed on the inner wall of the frame plate (422). A cross plate (424) is installed on the top of the frame plate (422). An impact block (425) is installed on the top of the cross plate (424). The impact block (425) is located below the striking rod (415). A reset assembly (6) is provided on the surface of the frame plate (422).

4. A vacuum feeder with controllable material suction speed according to claim 3, characterized in that: The reset assembly (6) includes a reset rod (61) installed on the surface of the frame plate (422) and a reset post (62) installed at the bottom of the support plate (421). The interior of the reset post (62) is slidably connected to the surface of the reset rod (61). A reset spring (63) is fixedly connected to one end of the reset rod (61), and one end of the reset spring (63) is fixedly connected to the bottom of the inner cavity of the reset post (62).

5. A vacuum feeder with controllable suction speed according to claim 1, characterized in that: The suction mechanism (3) includes a suction pipe (31) installed on one side of the feed cylinder (1) and a negative pressure pipe (32) installed on the other side of the feed cylinder (1). A vacuum pump (33) is installed at one end of the negative pressure pipe (32). A vacuum degree adjustment device (34) is provided on the negative pressure pipe (32) to adjust the vacuum degree in the negative pressure pipe (32). A flow detection device (35) is provided on the suction pipe (31) to detect the material conveying flow rate.

6. A vacuum feeder with controllable material suction speed according to claim 1, characterized in that: The inner wall of the feeding cylinder (1) is equipped with a vacuum sensor, which is electrically connected to the controller (2).

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