A grain counter with dust removing function

Abstract

The utility model relates to the technical fields of grain counter, and disclose a grain counter with dust removal function, including grain counter body and install in the conveying equipment of grain counter body front side, the upper portion of grain counter body top near the upper portion of middle part is provided with dust removal head, through the mutual cooperation between these components of sealing plate, handle, filter screen, L shape joint plate, jack, bearing frame, T shape plug rod and return spring, the design forms the effective sealed space through sealing plate and L shape joint plate etc. structure, so that dust containing airflow can be forced through filter screen, this design ensures that dust is intercepted in the dust collection box, then clean air is discharged, completely avoids the secondary contact of clean medicine and dust, and the synergies of T shape plug rod and return spring, the operator does not need tool, only needs simple operation to overcome the force of return spring, releases T shape plug rod from the jack, thereby easily taking out filter screen to clean.

Description

Technical Field

[0001] This utility model relates to the technical field of grain counting machines, specifically a grain counting machine with a dust removal function. Background Technology

[0002] In the packaging of solid particles in the modern pharmaceutical, food, and chemical industries, electronic tablet counters serve as high-precision automated counting and filling equipment. They primarily use photoelectric sensors to detect the pulse signals generated when particles pass through, and utilize programmable logic controllers (PLCs) to achieve accurate counting and dispensing control. This equipment is particularly suitable for the rapid counting and packaging of solid materials such as tablets, capsules, and pills, effectively improving production efficiency and counting accuracy. However, during the operation of the tablet counter, especially when processing uncoated preparations such as uncoated tablets, friction between materials and between materials and the vibrating feeder can easily generate fine dust. Therefore, in the design of modern tablet counters, integrating efficient dust removal functions has become a key aspect of ensuring stable equipment operation and maintaining high counting accuracy.

[0003] In the solid particle filling process of electronic particle counters, effective removal of dust generated in the vibratory feeder area is crucial for ensuring stable equipment operation and product quality. Current technology involves installing a dust collection component above the vibratory feeder to directly absorb dust generated during the vibratory conveying process. This reduces dust interference with the photoelectric counting sensor to some extent. However, this dust collection component lacks efficient and easily maintainable dust filtration and collection devices. If the dust-laden airflow is not effectively filtered or the filter component cannot be easily disassembled and cleaned, fine dust can easily escape with the airflow and fall back down, causing secondary pollution to the material and the vibratory feeder, reducing the dust removal effect. Furthermore, the position of the dust collection head is usually fixed, making it impossible to flexibly adjust its distance from the material surface on the vibratory feeder according to the material thickness or particle size. This makes it impossible to always optimize the working range of the dust collection port; too far a distance weakens suction and results in poor dust removal, while too close a distance may interfere with the normal and orderly conveying of the material.

[0004] Therefore, we propose a grain counting machine with dust removal function to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a grain counting machine with dust removal function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grain counting machine with dust removal function, comprising a grain counting machine body and a conveying device installed on the front side of the grain counting machine body, wherein a dust removal head is provided at the top of the grain counting machine body near the middle, and a dust collection box is provided at the top of the dust removal head, a connecting pipe is fixedly installed through the front side of the dust collection box near the middle, and the end of the connecting pipe away from the dust collection box is fixedly extended through into the inner cavity of the dust removal head, a dust removal pump is provided on the right side of the dust collection box, and a suction pipe is fixedly installed on the rear side of the dust removal pump, and the left end of the suction pipe is fixedly extended through into the inner cavity of the dust collection box, a filter assembly is installed at the top of the dust collection box, and an adjustment assembly is installed at the bottom of the dust removal head;

[0007] The filter assembly includes a sealing plate fitted to the top of the dust collection box and several filter screens fixedly installed at equal intervals at the bottom of the sealing plate. The outer sides of the filter screens are fitted to the inner wall of the dust collection box cavity. L-shaped snap-fit ​​plates are fixedly installed in the middle of the left and right sides of the sealing plate. A support frame is provided on the opposite side of the L-shaped snap-fit ​​plate. The opposite end of the support frame is fixedly installed on the dust collection box. A T-shaped insert rod is movably installed through the middle of the support frame.

[0008] Preferably, each of the L-shaped snap-fit ​​plates has a socket near the center, and the opposite ends of the T-shaped plugs pass through the inner cavities of the adjacent sockets and extend to the outer sides of the adjacent L-shaped snap-fit ​​plates.

[0009] Preferably, a return spring is sleeved on the outer side of each T-shaped insert, and the two ends of the return spring are respectively fixedly installed on the adjacent L-shaped snap plate and the support frame.

[0010] Preferably, a handle is fixedly installed at the center of the top of the sealing plate.

[0011] Preferably, a fixing rod is fixedly installed at the bottom of the dust removal head near both the left and right sides;

[0012] Two L-shaped plates are fixedly installed on both the left and right sides near the bottom of the dust collection box, and the L-shaped plates are arranged front and back, with the bottom of the L-shaped plates fixedly installed on the dust removal head.

[0013] Preferably, an L-shaped support plate is fixedly installed at the middle of the bottom of the dust removal pump, and the left side of the L-shaped support plate is fixedly installed on the dust removal head.

[0014] Preferably, the adjustment assembly includes a threaded plate disposed below the bottom of the dust removal head and a threaded rod movably installed through the middle of the threaded plate. A fixed frame is movably installed at the lower end of the threaded rod, and the upper end of the fixed frame is fixedly installed on the counting machine body. The top of the threaded plate and the lower end of the fixed rod are both fixedly connected. A driven gear is fixedly sleeved on the outer side of the threaded rod near the lower end. A driving gear meshes with the rear side of the driven gear. A servo motor is disposed above the top of the driving gear, and the driving gear is fixedly sleeved on the output shaft of the servo motor.

[0015] Preferably, a mounting base is fixedly installed on the rear side of the servo motor, and the rear side of the mounting base is fixedly installed on the inner wall of the inner side of the mounting frame.

[0016] Preferably, a guide plate is fixedly installed at the middle of the front side of the threaded plate, and a guide rod is slidably installed through the guide plate, with the lower end of the guide rod fixedly installed on the inner bottom wall of the fixed frame.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. Through the cooperation of components such as the sealing plate, handle, filter screen, L-shaped snap-fit ​​plate, insertion hole, support frame, T-shaped plug, and return spring, this design forms an effective sealed space through the sealing plate and L-shaped snap-fit ​​plate, allowing dust-laden airflow to be forced through the filter screen. This design ensures that dust is trapped inside the dust collection box, and then clean air is discharged, completely avoiding secondary contact between clean medicines and dust. This physical structure guarantees the cleanliness of the medicines. The synergistic effect of the T-shaped plug and the return spring is key to the quick installation and removal of the filter screen. Operators do not need tools; they can easily overcome the force of the return spring and release the T-shaped plug from the insertion hole, thus easily removing the filter screen for cleaning. This simplifies daily maintenance procedures, shortens equipment downtime, and ensures that the filter screen is always in a good permeable state, maintaining a stable dust removal rate.

[0019] 2. Through the interplay of components such as the threaded plate, guide plate, guide rod, threaded rod, fixed frame, driven gear, driving gear, servo motor, and fixed base, the servo motor drives the driving gear and driven gear to mesh and transmit power, precisely controlling the rotation angle of the threaded rod. The threaded plate, which engages with the threaded rod, converts rotational motion into linear motion, while the guide rod effectively eliminates rotational degrees of freedom, ensuring that the dust collector head moves smoothly along a predetermined trajectory without wobbling during lifting and lowering. This rigid transmission and guiding structure can precisely adjust and stably maintain the dust suction port at the optimal working distance, fundamentally avoiding distance changes caused by equipment vibration or external interference. Operators can easily and quickly adjust the height of the dust collector head according to changes in material thickness, conveyor speed, or cleaning standards. In addition, the threaded rod and threaded plate have self-locking characteristics, reliably maintaining their current position even in the event of a power outage, without the need for additional braking devices, thus improving system safety. At the same time, the compact and reasonable structural design, with key moving parts such as gears and threaded rods being easy to lubricate and maintain, reduces the failure rate during long-term operation, ensures production continuity, and reduces the workload of daily maintenance. Attached Figure Description

[0020] Figure 1 This is a perspective view of the entire utility model;

[0021] Figure 2 This is a bottom-view perspective view of the present invention;

[0022] Figure 3 This is a partial cross-sectional perspective view of the present invention.

[0023] Figure 4 This is a partial three-dimensional view of the threaded rod of this utility model;

[0024] Figure 5 This is a partial three-dimensional view of the dust removal head of this utility model;

[0025] Figure 6 This is a partial three-dimensional view of the dust removal pump of this utility model.

[0026] In the diagram: 1. Counting machine body; 2. Conveying equipment; 3. Dust removal head; 31. Fixing rod; 4. Dust collection box; 41. L-shaped plate; 5. Connecting pipe; 6. Dust removal pump; 61. L-shaped support plate; 7. Filter assembly; 71. Sealing plate; 711. Handle; 72. Filter screen; 73. L-shaped snap-fit ​​plate; 731. Insertion hole; 74. Bearing frame; 75. T-shaped insertion rod; 751. Return spring; 8. Adjustment assembly; 81. Threaded plate; 811. Guide plate; 812. Guide rod; 82. Threaded rod; 83. Fixing frame; 84. Driven gear; 85. Driven gear; 86. Servo motor; 861. Fixing base. Detailed Implementation

[0027] 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.

[0028] Example 1

[0029] Please see Figure 1-6 A grain counting machine with dust removal function includes a grain counting machine body 1 and a conveying device 2 installed on the front side of the grain counting machine body 1. A dust removal head 3 is provided at the top of the grain counting machine body 1 near the middle, and a dust collection box 4 is provided at the top of the dust removal head 3. A connecting pipe 5 is fixedly installed through the front side of the dust collection box 4 near the middle. The end of the connecting pipe 5 away from the dust collection box 4 is fixedly extended through into the inner cavity of the dust removal head 3. A dust removal pump 6 is provided on the right side of the dust collection box 4, and a suction pipe is fixedly installed on the rear side of the dust removal pump 6. The left end of the suction pipe is fixedly extended through into the inner cavity of the dust collection box 4. A filter assembly 7 is installed on the top of the dust collection box 4, and an adjustment assembly 8 is installed at the bottom of the dust removal head 3.

[0030] The filter assembly 7 includes a sealing plate 71 fitted to the top of the dust collection box 4 and several filter screens 72 fixedly installed at equal intervals at the bottom of the sealing plate 71. The outer sides of the filter screens 72 are fitted to the inner wall of the dust collection box 4. L-shaped snap-fit ​​plates 73 are fixedly installed at the middle of both sides of the sealing plate 71. A support frame 74 is provided on the opposite side of the L-shaped snap-fit ​​plates 73. The opposite end of the support frame 74 is fixedly installed on the dust collection box 4, and a T-shaped insert rod 75 is movably installed through the middle of the support frame 74. This ensures that dust is trapped inside the dust collection box 4, and then clean air is discharged, completely avoiding secondary contact between clean medicines and dust. The physical structure guarantees the cleanliness of the medicines. The synergistic effect of the T-shaped plug 75 and the return spring 751 is the key to the quick disassembly and assembly of the filter screen 72. Operators do not need tools and can easily overcome the force of the return spring 751 to release the T-shaped plug 75 from the plug hole 731, thereby easily removing the filter screen 72 for cleaning, simplifying the daily maintenance process.

[0031] The L-shaped snap-fit ​​plate 73 has a socket 731 near the middle, and the opposite ends of the T-shaped plug 75 pass through the inner cavity of the adjacent socket 731 and extend to the outer side of the adjacent L-shaped snap-fit ​​plate 73, which facilitates the snap-fit ​​positioning of the L-shaped snap-fit ​​plate 73.

[0032] Each T-shaped insert 75 is fitted with a return spring 751 on its outer side, and the two ends of the return spring 751 are respectively fixedly installed on the adjacent L-shaped snap plate 73 and the support frame 74, which facilitates the movement and restoration of the T-shaped insert 75.

[0033] A handle 711 is fixedly installed at the middle of the top of the sealing plate 71, which allows the operator to hold the handle 711 and move the sealing plate 71 upward, thereby removing the filter screen plate 72.

[0034] The bottom of the dust removal head 3 is fixedly installed with fixing rods 31 near the left and right sides, which facilitates the height adjustment operation.

[0035] Two L-shaped plates 41 are fixedly installed on the left and right sides near the bottom of the dust collection box 4. The L-shaped plates 41 are arranged front and back. The bottom of the L-shaped plates 41 are fixedly installed on the dust removal head 3, which serves to support and fix the dust collection box 4.

[0036] An L-shaped support plate 61 is fixedly installed at the middle of the bottom of the dust pump 6, and the left side of the L-shaped support plate 61 is fixedly installed on the dust removal head 3, which serves to support and fix the dust pump 6.

[0037] In this embodiment: During use, the counting machine body 1 loads a fixed amount of material particles into the material bottle conveyed by the conveying device 2, thus achieving the counting operation. During operation, the counting machine body 1 generates dust due to the vibration of the material. Additionally, the dust pump 6 is activated, which causes the dust collection head 3 to generate suction, thereby drawing the dust into the dust collection box 4. The filter screen 72 filters and isolates the dust particles in the dust collection box 4, while clean air is discharged. Furthermore, the filter can be periodically cleaned. To disassemble and clean the filter screen 72, pull the T-shaped inserts 75 on both sides to move them away from the dust collection box 4. The extension of the adjacent reset spring 751 will cause the T-shaped inserts 75 on both sides to move in the opposite direction, thus slowly moving away from the inner cavity of the adjacent insertion hole 731. At this time, the L-shaped snap-fit ​​plate 73 can be released. Then, hold the handle 711 to move the sealing plate 71 upward, which will move the filter screen 72 upward and remove it, making it easier for the staff to clean. After cleaning, reverse the operation to re-snap and fix the filter screen 72.

[0038] Example 2

[0039] This embodiment is an improvement upon embodiment 1. For details, please refer to [link / reference]. Figure 1-4The adjusting assembly 8 includes a threaded plate 81 located below the bottom of the dust collector head 3 and a threaded rod 82 movably mounted through the middle of the threaded plate 81. A fixing bracket 83 is movably mounted on the lower end of the threaded rod 82, and the upper end of the fixing bracket 83 is fixedly mounted on the counting machine body 1. The top of the threaded plate 81 and the lower end of the fixing rod 31 are both fixedly connected. A driven gear 84 is fixedly sleeved on the outer side of the threaded rod 82 near the lower end. A driving gear 85 meshes with the rear side of the driven gear 84. A servo motor 86 is located above the top of the driving gear 85, and the driving gear 85 is fixedly sleeved on the servo motor. On the output shaft of machine 86, the operator can easily and quickly adjust the height of the dust removal head 3 according to the thickness of different materials, the speed of the conveyor line, or changes in cleaning standards. In addition, the threaded rod 82 and the threaded plate 81 have self-locking characteristics, which can reliably maintain the current position even in the event of a power failure without the need for an additional braking device, thus improving the safety of the system. At the same time, the structure is compact and reasonable, and the main moving parts such as the driven gear 84, the driving gear 85, and the threaded rod 82 are easy to lubricate and maintain, reducing the failure rate during long-term operation, ensuring the continuity of production, and reducing the workload of daily maintenance.

[0040] A mounting base 861 is fixedly installed on the rear side of the servo motor 86, and the rear side of the mounting base 861 is fixedly installed on the inner wall of the mounting bracket 83, which serves to support and fix the servo motor 86.

[0041] A guide plate 811 is fixedly installed at the middle of the front side of the threaded plate 81, and a guide rod 812 is slidably installed through the guide plate 811. The lower end of the guide rod 812 is fixedly installed on the inner bottom wall of the fixed frame 83, which plays a role in guiding and limiting the movement of the threaded plate 81, so as to make it move up and down stably.

[0042] In this embodiment: Before the dust removal head 3 sucks up the dust, the distance between it and the material can be adjusted. The operation of the servo motor 86 will drive the drive gear 85 to rotate. When the drive gear 85 rotates, it will drive the threaded rod 82 to rotate through the driven gear 84. When the threaded rod 82 rotates, it will drive the threaded plate 81 to move up and down. When the threaded plate 81 moves up and down, it will drive the dust removal head 3 to move up and down through the fixed rod 31, thereby adjusting its height. After adjusting to a suitable distance, the servo motor 86 can be stopped, resulting in a better dust removal effect.

[0043] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A grain counting machine with dust removal function, comprising a grain counting machine body (1) and a conveying device (2) installed on the front side of the grain counting machine body (1), characterized in that: The main body (1) of the counting machine is provided with a dust removal head (3) at the top near the middle, and a dust collection box (4) is provided at the top of the dust removal head (3). A connecting pipe (5) is fixedly installed through the front side of the dust collection box (4) near the middle. The end of the connecting pipe (5) away from the dust collection box (4) is fixedly extended through into the inner cavity of the dust removal head (3). A dust removal pump (6) is provided on the right side of the dust collection box (4), and a suction pipe is fixedly installed on the rear side of the dust removal pump (6). The left end of the suction pipe is fixedly extended through into the inner cavity of the dust collection box (4). A filter assembly (7) is installed at the top of the dust collection box (4), and an adjustment assembly (8) is installed at the bottom of the dust removal head (3). The filter assembly (7) includes a sealing plate (71) fitted to the top of the dust collection box (4) and several filter screens (72) fixedly installed at equal intervals at the bottom of the sealing plate (71). The outer sides of the filter screens (72) are fitted to the inner wall of the dust collection box (4). L-shaped snap-fit ​​plates (73) are fixedly installed at the middle of the left and right sides of the sealing plate (71). A support frame (74) is provided on the opposite side of the L-shaped snap-fit ​​plate (73). The opposite end of the support frame (74) is fixedly installed on the dust collection box (4). A T-shaped insert rod (75) is movably installed through the middle of the support frame (74).

2. A grain counting machine with dust removal function according to claim 1, characterized in that: Each of the L-shaped snap-fit ​​plates (73) has a socket (731) near the center, and one end of each of the T-shaped plugs (75) passes through the inner cavity of the adjacent socket (731) and extends to the outer side of the adjacent L-shaped snap-fit ​​plates (73).

3. A grain counting machine with dust removal function according to claim 1, characterized in that: Each of the T-shaped inserts (75) is fitted with a return spring (751), and the two ends of the return spring (751) are fixedly installed on the adjacent L-shaped snap plate (73) and the support frame (74).

4. A grain counting machine with dust removal function according to claim 1, characterized in that: A handle (711) is fixedly installed at the middle of the top of the sealing plate (71).

5. A grain counting machine with dust removal function according to claim 1, characterized in that: The bottom of the dust removal head (3) is fixedly installed with a fixing rod (31) near the left and right sides. Two L-shaped plates (41) are fixedly installed on the left and right sides near the bottom of the dust collection box (4), and the L-shaped plates (41) are arranged in front and back. The bottom of the L-shaped plates (41) is fixedly installed on the dust removal head (3).

6. A grain counting machine with dust removal function according to claim 1, characterized in that: An L-shaped support plate (61) is fixedly installed at the middle of the bottom of the dust pump (6), and the left side of the L-shaped support plate (61) is fixedly installed on the dust removal head (3).

7. A grain counting machine with dust removal function according to claim 1, characterized in that: The adjustment assembly (8) includes a threaded plate (81) located below the bottom of the dust removal head (3) and a threaded rod (82) movably installed through the middle of the threaded plate (81). A fixed frame (83) is movably installed at the lower end of the threaded rod (82), and the upper end of the fixed frame (83) is fixedly installed on the counting machine body (1). The top of the threaded plate (81) and the lower end of the fixed rod (31) are both fixedly connected. A driven gear (84) is fixedly sleeved on the outer side of the threaded rod (82) near the lower end. A driving gear (85) meshes with the rear side of the driven gear (84). A servo motor (86) is located above the top of the driving gear (85), and the driving gear (85) is fixedly sleeved on the output shaft of the servo motor (86).

8. A grain counting machine with dust removal function according to claim 7, characterized in that: The servo motor (86) is fixedly mounted on the rear side of a mounting base (861), and the rear side of the mounting base (861) is fixedly mounted on the inner wall of the inner side of the mounting bracket (83).

9. A grain counting machine with dust removal function according to claim 7, characterized in that: A guide plate (811) is fixedly installed at the middle of the front side of the threaded plate (81), and a guide rod (812) is slidably installed through the guide plate (811). The lower end of the guide rod (812) is fixedly installed on the inner bottom wall of the fixed frame (83).

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