Sorting mechanism for high-precision powdery material weighing and packaging machine

Abstract

The utility model relates to the related technical field of sorting mechanisms for powdery material weighing and packaging machines, one embodiment of the utility model provides a high-precision sorting mechanism for a powdery material weighing and packaging machine, the high-precision sorting mechanism comprises a mounting seat and a control motor, the control motor is arranged at the bottom of the mounting seat, and an air extrusion assembly is arranged on the mounting seat. The electronic scale is arranged on the surface of the mounting base, the grabbing assembly is arranged at the output end of the control motor and comprises a rotating base, the rotating base is rotationally connected into the surface of the mounting base and connected with the output end of the control motor, a supporting frame is arranged on the rotating base, a pair of fixing rods is mounted on the sliding frame, and a fixing clamping plate is arranged at one end of each fixing rod. Clamping cylinders are arranged on the surfaces of the sliding frames, movable clamping plates are arranged at the output ends of the clamping cylinders, and a plurality of through openings are formed in the periphery of the outer surface of the supporting frame. By means of the technical scheme, the technical problem that in the prior art, materials are generally scattered in the weighing process after powder is subpackaged through a traditional sorting mechanism is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of sorting mechanisms for powder material weighing and packaging machines, specifically, to a high-precision sorting mechanism for powder material weighing and packaging machines. Background Technology

[0002] In the field of high-precision powder material weighing and packaging, the sorting mechanism is a key link in ensuring packaging accuracy. Its ability to retain material during the weighing process after dispensing directly affects packaging quality and production efficiency. However, traditional sorting mechanisms generally suffer from material spillage during the weighing process after powder dispensing, leading to a series of technical challenges such as decreased weighing accuracy, material waste, and dust pollution in the production environment.

[0003] Existing sorting mechanisms mostly employ open or simple baffle structures. When the packaged powder enters the weighing stage, factors such as conveyor vibration, mechanism movement, or airflow disturbance can easily cause the powder to spill out from the container edges. For example, when packaging lightweight powders such as flour and milk powder, even slight vibrations of the weighing platform can cause powder to overflow from the packaging container, resulting in a significant deviation between the actual weighing value and the set value, making it difficult to guarantee packaging accuracy. Furthermore, the spilled powder not only wastes material but also accumulates inside the equipment, increasing cleaning and maintenance costs and potentially causing equipment malfunctions.

[0004] Furthermore, traditional sorting mechanisms lack effective anti-scattering designs and cannot adapt to the weighing requirements of powders with varying flowability. For powders with good flowability, the scattering phenomenon is more severe, requiring operators to frequently clean and adjust, increasing labor intensity and affecting production continuity. In high-speed packaging production lines, scattering issues can cause frequent interruptions in the weighing process, severely hindering the improvement of production efficiency.

[0005] With the increasing demands for precision packaging of powdered materials in industries such as food and chemicals, traditional sorting mechanisms, due to problems such as "easy material dispersal, low precision, and difficult maintenance," can no longer meet the needs of high-precision weighing and packaging. Utility Model Content

[0006] To overcome the above-mentioned defects, the embodiments of this disclosure provide a sorting mechanism for a high-precision powder material weighing and packaging machine, which solves the technical problem of material spillage that is common in traditional sorting mechanisms after powder packaging during the weighing process.

[0007] According to one aspect, at least one embodiment of this disclosure provides a sorting mechanism for a high-precision powder material weighing and packaging machine, comprising:

[0008] A mounting base and a control motor, wherein the control motor is located at the bottom of the mounting base;

[0009] An air extrusion assembly, the air extrusion assembly being disposed on the mounting base;

[0010] An electronic scale and a gripping assembly, wherein the electronic scale is disposed on the surface of the mounting base and the gripping assembly is disposed at the output end of the control motor;

[0011] The gripping component includes a rotating base, which is rotatably connected to the surface of the mounting base. The rotating base is connected to the output end of the control motor. A support frame is provided on the rotating base, and several sliding frames are provided on the support frame. A pair of fixed rods are installed on the sliding frames, and a fixed clamp is provided at one end of each fixed rod.

[0012] As a further technical solution, the sliding frame surface is provided with a clamping cylinder, the output end of the clamping cylinder is provided with a movable clamping plate, and the outer surface of the support frame is provided with several openings around the perimeter.

[0013] As a further technical solution, the top of the support frame is provided with several control cylinders, one end of the inner side of the sliding frame passes through the opening and is connected to the output end of the control cylinder, and a set of slide rails is provided around the side surface of the support frame.

[0014] As a further technical solution, the sliding frame is slidably connected to the slide rail, the surface of the mounting base is provided with a receiving cover, the bottom of the mounting base is provided with a sliding bucket, and the sliding bucket is connected to the inside of the receiving cover.

[0015] As a further technical solution, the air extrusion assembly includes a pair of upright plates, which are fixed at both ends of the mounting base surface. A pair of telescopic cylinders are provided on the side surface of the upright plates, and each telescopic cylinder has a pressure block at its output end.

[0016] As a further technical solution, both the fixed clamp and the movable clamp are provided with anti-slip raised layers on their opposing surfaces.

[0017] As a further technical solution, the outer surface of the fixing plate is located at the center of the pair of upright plates.

[0018] As a further technical solution, the bottom surface of the sliding bucket is an inclined structural surface.

[0019] The beneficial effects of the embodiments disclosed herein are as follows:

[0020] 1. In this disclosure, the gripping component achieves workstation switching by controlling the motor to drive the rotating seat. The sliding frame moves radially on the slide rail and adjusts its height in conjunction with the control cylinder. The clamping cylinder drives the movable clamping plate and the fixed clamping plate to clamp the packaging bag. The anti-slip convex layer prevents slippage. It can accurately grip the packaging bag and move it to the electronic scale for weighing. After completion, it rotates to the corresponding workstation. Unqualified products are recycled through the receiving cover and the sliding bucket. It realizes the automated gripping, weighing and sorting of packaging bags, solves the problem of powder scattering caused by vibration and other factors in traditional mechanisms, ensures weighing accuracy and improves production efficiency.

[0021] 2. In this disclosure, the air extrusion assembly uses a vertical plate to fix a telescopic cylinder. The telescopic cylinder pushes the pressure block to slowly squeeze the packaging bag. The silicone pressure block increases the pressure gradually with an appropriate force gradient to avoid excessive instantaneous pressure causing powder to overflow. The pressure blocks on both sides move synchronously towards the center to expel the air inside the packaging bag. The stroke is precisely controlled by a solenoid valve to adapt to different specifications of packaging bags, ensuring that there is no air inside the packaging bag during weighing. This solves the problem of weighing deviation caused by the presence of air, improves weighing accuracy, ensures packaging precision, and reduces material waste and equipment contamination. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0023] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0024] Figure 2 This is an isometric drawing of the present disclosure;

[0025] Figure 3 This is an isometric sectional view of the present disclosure;

[0026] Figure 4 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle;

[0027] In the diagram: 1. Mounting base; 2. Control motor; 3. Electronic scale; 4. Gripping assembly; 4-1. Rotating seat; 4-2. Support frame; 4-3. Sliding frame; 4-4. Fixing rod; 4-5. Fixing clamp; 4-6. Clamping cylinder; 4-7. Movable clamp; 4-8. Through port; 4-9. Control cylinder; 4-10. Slide rail; 4-11. Receiving cover; 4-12. Sliding bucket; 5. Air extrusion assembly; 5-1. Vertical plate; 5-2. Telescopic cylinder; 5-3. Pressure block; 6. Anti-slip raised layer. Detailed Implementation

[0028] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0029] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0030] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0031] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0033] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] like Figures 1-4 As shown, a sorting mechanism for a high-precision powder material weighing and packaging machine according to an embodiment of this disclosure is provided, comprising:

[0035] Mounting base 1 and control motor 2, wherein the control motor 2 is disposed at the bottom of the mounting base 1;

[0036] Air extrusion assembly 5, which is disposed on the mounting base 1;

[0037] An electronic scale 3 and a gripping assembly 4 are provided. The electronic scale 3 is disposed on the surface of the mounting base 1, and the gripping assembly 4 is disposed at the output end of the control motor.

[0038] The gripping component 4 includes a rotating base 4-1, which is rotatably connected to the surface of the mounting base 1. The rotating base 4-1 is connected to the output end of the control motor 2. A support frame 4-2 is provided on the rotating base 4-1. Several sliding frames 4-3 are provided on the support frame 4-2. A pair of fixed rods 4-4 are installed on each sliding frame 4-3. A fixed clamping plate 4-5 is provided at one end of each fixed rod 4-4. A clamping cylinder 4-6 is provided on the surface of the sliding frame 4-3. A movable clamping plate 4-7 is provided at the output end of the clamping cylinder 4-6. The outer surface of the frame 4-2 has several openings 4-8 around its perimeter. The top of the support frame 4-2 is equipped with several control cylinders 4-9. One end of the sliding frame 4-3 passes through the openings 4-8 and connects to the output end of the control cylinders 4-9. A set of slide rails 4-10 is provided around the side surface of the support frame 4-2. The sliding frame 4-3 is slidably connected to the slide rails 4-10. The surface of the mounting base 1 is equipped with a receiving cover 4-11. The bottom of the mounting base 1 is equipped with a sliding bucket 4-12, which is connected to the inside of the receiving cover 4-11.

[0039] In some examples, a gripping component 4 is designed to achieve precise gripping of packaging bags, workstation switching, and recycling of defective products. This component centers on a rotating seat 4-1 on the surface of the mounting base 1. A control motor 2 drives the rotating seat 4-1 to rotate the support frame 4-2 360°. The circumferentially distributed sliding frames 4-3 on the frame move radially via slide rails 4-10. Each sliding frame 4-3 is equipped with a fixed clamping plate 4-5 and a movable clamping plate 4-7. A clamping cylinder 4-6 pushes the movable clamping plate 4-7 to engage with the fixed clamping plate 4-5, gripping two opposite corners of the packaging bag. A control cylinder 4-9 at the top of the support frame 4-2 drives the sliding frame 4-3 to extend and retract along the opening 4-8, achieving height adjustment of the gripping position. After the packaging bag is grasped, the rotary seat 4-1 rotates above the electronic scale 3 for weighing. If the weight meets the standard, it continues to rotate to the packaging station; if the weight does not meet the standard, the sliding frame 4-3 moves the packaging bag above the receiving cover 4-11, and the clamping plate is released, allowing the packaging bag to fall into the sliding hopper 4-12 for recycling. Through the station switching of the rotary seat 4-1, the radial movement of the sliding frame 4-3, the pneumatic clamping of the clamping plate, and the height adjustment of the control cylinder 4-9, the grasping component 4 realizes the fully automated operation of the packaging bag.

[0040] like Figures 1-4 As shown in the figure, the air extrusion assembly 5 in this embodiment includes a pair of upright plates 5-1. The upright plates 5-1 are fixed at both ends of the surface of the mounting base 1. A pair of telescopic cylinders 5-2 are provided on the side surface of the upright plates 5-1. Each of the telescopic cylinders 5-2 is provided with a pressure block 5-3 at its output end.

[0041] In some examples, an air extrusion assembly 5 is designed to remove air from the packaging bag to ensure weighing accuracy. This assembly is supported by upright plates 5-1 at both ends of the mounting base 1. Symmetrically arranged telescopic cylinders 5-2 drive the pressure block 5-3 to move slowly in the horizontal direction. The surface of the pressure block 5-3 is made of silicone material. When it comes into contact with the packaging bag, it squeezes with a force gradient of 0.5 N / s to avoid excessive instantaneous pressure that could cause powder to overflow. The two pressure blocks 5-3 move synchronously towards the center, squeezing the sides of the packaging bag and allowing the internal air to be discharged through the bag opening. The stroke of the pressure block 5-3 can be precisely controlled by the solenoid valve of the cylinder to adapt to different sizes of packaging bags. After squeezing, the pressure block 5-3 automatically resets without affecting the subsequent weighing process. After the air is squeezed out, the top opening of the packaging bag will not be opened due to the bottom of the packaging bag being propped up when it is placed on the electronic scale 3, effectively preventing the powder from being squeezed and dispersed to the outside.

[0042] This progressive extrusion design ensures effective air removal while avoiding powder loss, meeting the requirements of high-precision packaging.

[0043] For example, such as Figure 4 As shown, both the fixed clamping plate 4-5 and the movable clamping plate 4-7 have anti-slip raised layers 6 on their opposing surfaces.

[0044] In some examples, the anti-slip raised layer 6 enables the packaging bag to maintain a tight seal after clamping, preventing slippage.

[0045] For example, such as Figure 2 As shown, the outer surface of the fixing plate 4-5 is located at the center of the pair of upright plates 5-1.

[0046] In some examples, by centering the pressure blocks 5-3 on both sides of the packaging bag, it is ensured that they can simultaneously contact the packaging bag and compress the air.

[0047] For example, such as Figure 2 As shown, the bottom surface of the sliding bucket 4-12 is an inclined structural surface.

[0048] In some examples, by tilting the structural surface, the falling packaging bag can slide out quickly, allowing a receiving container to be placed on the outside for direct recycling.

[0049] In actual use: Mounting base 1 is fixed to the designated workstation inside the packaging machine. Control motor 2 is bolted to the center of the bottom of mounting base 1. Electronic scale 3 is calibrated and embedded in the surface of mounting base 1. The rotating seat 4-1 of gripping component 4 is rotatably connected to the surface of mounting base 1 via bearings and keyed to the output shaft of control motor 2. Support frame 4-2 is welded and fixed to rotating seat 4-1. Sliding frame 4-3 is slidably connected to slide rail 4-10 via slider. Fixed rod 4-4 and fixed clamping plate 4-5 are bolted to the front end of sliding frame 4-3. Clamping cylinder 4-6 and movable clamping plate 4-7 are installed on the surface of sliding frame 4-3. Control cylinder 4-9 is installed on the top of support frame 4-2 and its piston rod is hinged to the inside of sliding frame 4-3. Vertical plate 5-1 of air extrusion component 5 is vertically... The receiving cover 4-11 is fixed at both ends of the mounting base 1. The telescopic cylinder 5-2 and the pressure block 5-3 are connected by flanges. The receiving cover 4-11 is fixed to the surface of the mounting base 1 with bolts. The bottom is welded with an inclined sliding bucket 4-12. During operation, the control motor 2 drives the rotating seat 4-1 to rotate. The sliding frame 4-3 moves radially through the control cylinder 4-9 and the slide rail 4-10. The clamping cylinder 4-6 drives the movable clamping plate 4-7 to clamp the packaging bag with the fixed clamping plate 4-5. The bag is rotated to the electronic scale 3 for weighing. At the same time, the next packaging bag is transported between the two sets of telescopic cylinders 5-2. The telescopic cylinder 5-2 of the air extrusion assembly 5 pushes the pressure block 5-3 to squeeze the packaging bag at a uniform speed to expel air. After the defective product is released from the clamping plate, it falls into the receiving cover 4-11 and is collected by the sliding bucket 4-12. The collection position can be pre-placed with a container for receiving.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A sorting mechanism for a high-precision powder material weighing and packaging machine, characterized in that, include: The mounting base (1) and the control motor (2) are provided at the bottom of the mounting base (1); An air extrusion assembly (5) is disposed on the mounting base (1); An electronic scale (3) and a gripping assembly (4) are provided, wherein the electronic scale (3) is disposed on the surface of the mounting base (1) and the gripping assembly (4) is disposed at the output end of the control motor (2); The gripping component (4) includes a rotating seat (4-1), which is rotatably connected to the surface of the mounting base (1). The rotating seat (4-1) is connected to the output end of the control motor (2). A support frame (4-2) is provided on the rotating seat (4-1). Several sliding frames (4-3) are provided on the support frame (4-2). A pair of fixed rods (4-4) are installed on the sliding frames (4-3). A fixed clamp (4-5) is provided at one end of the fixed rods (4-4).

2. The sorting mechanism for a high-precision powder material weighing and packaging machine according to claim 1, characterized in that, The sliding frame (4-3) is provided with a clamping cylinder (4-6) on its surface, and a movable clamping plate (4-7) is provided at the output end of the clamping cylinder (4-6). The outer surface of the support frame (4-2) is provided with several openings (4-8).

3. The sorting mechanism for a high-precision powder material weighing and packaging machine according to claim 2, characterized in that, The top of the support frame (4-2) is provided with several control cylinders (4-9). One end of the inner side of the sliding frame (4-3) passes through the port (4-8) and is connected to the output end of the control cylinder (4-9). A set of slide rails (4-10) is provided around the side surface of the support frame (4-2).

4. The sorting mechanism for a high-precision powder material weighing and packaging machine according to claim 3, characterized in that, The sliding frame (4-3) is slidably connected to the slide rail (4-10). The surface of the mounting base (1) is provided with a receiving cover (4-11). The bottom of the mounting base (1) is provided with a sliding bucket (4-12). The sliding bucket (4-12) is connected to the inside of the receiving cover (4-11).

5. The sorting mechanism for a high-precision powder material weighing and packaging machine according to claim 1, characterized in that, The air extrusion assembly (5) includes a pair of upright plates (5-1), which are fixed at both ends of the surface of the mounting base (1). A pair of telescopic cylinders (5-2) are provided on the side surface of the upright plates (5-1), and each telescopic cylinder (5-2) is provided with a pressure block (5-3) at its output end.

6. The sorting mechanism for a high-precision powder material weighing and packaging machine according to claim 2, characterized in that, The fixed clamping plate (4-5) and the movable clamping plate (4-7) are provided with anti-slip raised layers (6) on their opposite surfaces.

7. The sorting mechanism for a high-precision powder material weighing and packaging machine according to claim 5, characterized in that, The outer surface of the fixing clamp (4-5) is located at the center of the pair of upright plates (5-1).

8. The sorting mechanism for a high-precision powder material weighing and packaging machine according to claim 4, characterized in that, The bottom surface of the sliding bucket (4-12) is an inclined structural surface.

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