A product dynamic weighing and automatic removing device

Abstract

The utility model relates to the field of weighing and removing, in particular to a product dynamic weighing and automatic removing device, including conveying frame, one side symmetry of conveying frame top is connected with the flow guide plate of sliding, the position of conveying frame top close to flow guide plate is slidably arranged with weighing mechanism, the side wall of conveying frame top is slidably connected with the removing mechanism, one side of conveying frame is fixedly connected with the auxiliary moving mechanism, the auxiliary moving mechanism below is provided with the classification mechanism, and the flow guide plate is slidably arranged on the top of conveying frame, and the distance between two flow guide plates can be flexibly adjusted according to the product appearance size, makes the product along the stable conveyance of cylinder central axis, provides accurate positioning condition for subsequent weighing, removing link, reduces the influence of product deviation on process connection.

Description

Technical Field

[0001] This utility model belongs to the field of weighing rejection, specifically relating to a dynamic weighing and automatic rejection device for products. Background Technology

[0002] In fields such as food processing, pharmaceutical packaging, and industrial parts manufacturing, products typically need to be weighed after production to screen out those that are not up to standard, such as those with missing parts, insufficient materials, or excessive weight. At the same time, subsequent classification is also required based on product specifications, categories, and other information to ensure that products entering the market or the next process meet quality standards and sorting requirements. The efficiency and accuracy of this process directly affect the company's production efficiency and product quality control level.

[0003] However, a single pusher structure can only handle regular products, and it is easy to miss or damage small or irregularly shaped parts. Moreover, it only has the function of rejection, and subsequent sorting requires manual intervention. A few equipment with sorting functions have fixed channels, which cannot be flexibly adjusted and have a narrow range of applications. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing rejection devices in the background art, such as the poor rejection effect of a single push plate structure on small and irregularly shaped products and the easy damage to products, and the limitation of the applicability of the sorting function due to the fixed channel, so as to realize a dynamic product weighing and automatic rejection device.

[0005] To achieve the above-mentioned objectives, the technical solution of this utility model is: a product dynamic weighing and automatic rejection device, including a conveyor frame, a guide plate symmetrically and slidably connected to one side of the top of the conveyor frame, a weighing mechanism slidably arranged on the top of the conveyor frame near the guide plate, a rejection mechanism slidably connected to the top side wall of the conveyor frame, an auxiliary moving mechanism fixedly connected to one side of the conveyor frame, and a sorting mechanism arranged below the auxiliary moving mechanism.

[0006] In the above-mentioned dynamic product weighing and automatic rejection device, several rollers are evenly distributed and rotatably connected to the top of the conveyor frame, and a sprocket is fixedly sleeved at one end of each roller, and the several sprockets are linked by a chain.

[0007] A drive motor is fixed to one side of the conveyor frame. The output shaft of the drive motor and one end of one of the rollers are respectively fitted with pulleys. The two pulleys are connected by a transmission belt.

[0008] In the above-mentioned product dynamic weighing and automatic rejection device, the weighing mechanism includes a first hydraulic cylinder and a weighing module. The first hydraulic cylinder is fixed at the bottom of the conveyor frame, and the output end of the first hydraulic cylinder is connected to the weighing module. At least three ejector plates are fixed on the top of the weighing module. The ejector plates pass through the gap between adjacent rollers and extend to the top of the conveyor frame.

[0009] In the above-mentioned product dynamic weighing and automatic rejection device, the rejection mechanism includes an electric telescopic cylinder and a second hydraulic cylinder. The electric telescopic cylinder is fixed to the bottom of the conveyor frame. The output shaft of the electric telescopic cylinder is connected to a connecting rod. The top of the connecting rod passes through the gap between the rollers and is fixed with a rejection plate.

[0010] In the above-mentioned product dynamic weighing and automatic rejection device, the second hydraulic cylinder is fixed to one side of the rejection plate, and an auxiliary push plate is fixed to the output end of the second hydraulic cylinder. The rejection plate has a through hole for the auxiliary push plate to slide.

[0011] In the above-mentioned product dynamic weighing and automatic rejection device, the auxiliary moving mechanism includes a removal frame, rollers and a scanning mechanism. The removal frame is fixed to one side of the conveyor frame, and several rollers are evenly distributed and rotatably connected to the top of the removal frame. Two scanning mechanisms are symmetrically fixed to both sides of the removal frame, and a baffle is rotatably connected to the side of the removal frame away from the conveyor frame.

[0012] In the above-mentioned product dynamic weighing and automatic rejection device, the sorting mechanism includes a base, a rotating shaft and a rotating plate. The base is fixed to one side of the removal frame, the rotating shaft is rotatably connected to the top of the base, and the rotating plate is fixed to the top of the rotating shaft. The rotating plate is rectangular and has an open structure on one side.

[0013] A third hydraulic cylinder is fixed to each of the two adjacent sides of the top of the base. The output end of the third hydraulic cylinder is connected to a push plate. Sliding plates are fixed to the other two sides of the top of the base.

[0014] In the above-mentioned product dynamic weighing and automatic rejection device, the sorting mechanism further includes a fourth hydraulic cylinder and a linkage shaft. The fourth hydraulic cylinder is rotatably connected to the top of the base, and the output end of the fourth hydraulic cylinder is fixed to the bottom of the rotating shaft through the linkage shaft.

[0015] In the above-mentioned dynamic product weighing and automatic rejection device, the lifting height of the ejector plate is greater than the top surface of the roller.

[0016] In the above-mentioned product dynamic weighing and automatic rejection device, the lateral movement trajectory of the auxiliary push plate is parallel to the movement direction of the rejection plate.

[0017] Compared with the prior art, the product dynamic weighing and automatic rejection device of this utility model has at least the following beneficial effects:

[0018] 1. The product dynamic weighing and automatic rejection device of this utility model has guide plates symmetrically slidably installed on the top of the conveyor frame. The distance between the two guide plates can be flexibly adjusted according to the product's external dimensions, so that the product can be stably conveyed along the central axis of the roller, providing accurate positioning conditions for subsequent weighing and rejection processes, and reducing the impact of product deviation on process connection.

[0019] 2. The weighing mechanism adopts a lifting design with a first hydraulic cylinder and an ejector plate. During weighing, the ejector plate can pass through the gap between the rollers to completely lift the product off the conveying surface, reducing the interference of vibration and friction generated by the rotation of the rollers on the weighing module. At the same time, the even arrangement of no less than three ejector plates can provide stable support for the product and improve the placement stability of the product during the weighing process.

[0020] 3. The rejection mechanism integrates a rejection plate driven by an electric telescopic cylinder and an auxiliary push plate controlled by a second hydraulic cylinder. Conventional non-conforming products can be pushed out laterally through the rejection plate, while small and irregularly shaped parts can be accurately pushed with the help of the auxiliary push plate. It adapts to the rejection needs of products of different specifications and shapes, and improves the adaptability of rejection operations.

[0021] 4. The scanning mechanism of the auxiliary moving mechanism can automatically collect product category information. The sorting mechanism drives the rotating plate to adjust the direction through the fourth hydraulic cylinder and pushes the product out through the third hydraulic cylinder, which can automatically sort the products based on the scanning information. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a front view schematic diagram of the classification mechanism of this utility model;

[0024] Figure 3 This is a side view of the entire utility model;

[0025] Figure 4 This is a front view schematic diagram of the weighing mechanism of this utility model;

[0026] Figure 5 This is a front view schematic diagram of the rejection mechanism of this utility model.

[0027] In the diagram: 1. Conveyor frame; 2. Guide plate; 3. Roller;

[0028] 4. Weighing mechanism; 401. Ejector plate; 402. First hydraulic cylinder; 403. Weighing module;

[0029] 5. Rejection mechanism; 501. Electric telescopic cylinder; 502. Rejection plate; 503. Second hydraulic cylinder; 504. Connecting rod; 505. Auxiliary push plate;

[0030] 6. Auxiliary moving mechanism; 601. Removal frame; 602. Roller; 603. Scanning mechanism; 604. Baffle;

[0031] 7. Sorting mechanism; 701. Rotating plate; 702. Third hydraulic cylinder; 703. Sliding plate; 704. Fourth hydraulic cylinder; 705. Linkage shaft; 706. Push-out plate; 707. Rotating shaft; 708. Base;

[0032] 8. Drive motor; 9. Transmission belt; 10. Sprocket. Detailed Implementation

[0033] The product dynamic weighing and automatic rejection device of this utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments.

[0034] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0035] This embodiment discloses a dynamic product weighing and automatic rejection device. Existing rejection devices with a single pusher structure have poor rejection efficiency for small and irregularly shaped products and are prone to damage. Those with classification functions have limited applicability due to fixed channels. Referring to… Figures 1-5 It mainly includes a conveyor frame 1, a guide plate 2 symmetrically and slidably connected to one side of the top of the conveyor frame 1, a weighing mechanism 4 slidably arranged at the top of the conveyor frame 1 near the guide plate 2, a rejection mechanism 5 slidably connected to the top side wall of the conveyor frame 1, an auxiliary moving mechanism 6 fixedly connected to one side of the conveyor frame 1, and a sorting mechanism 7 arranged below the auxiliary moving mechanism 6.

[0036] A guide plate 2 is symmetrically slidably connected to one side of the top of the conveyor frame 1. Its position can be adjusted according to the actual conveying needs of the products to be processed, ensuring that the products maintain a regular direction during conveying. A weighing mechanism 4 is slidably installed on the top of the conveyor frame 1 near the guide plate 2, used to detect the weight of the products during conveying. Its sliding design can adapt to the weighing requirements under different conveying rhythms. A rejection mechanism 5 is slidably connected to the top side wall of the conveyor frame 1, capable of rejecting products that do not meet the standards after weighing. Its sliding characteristics allow for flexible adjustment of the rejection position to match the product conveying path. An auxiliary moving mechanism 6 is fixedly connected to one side of the conveyor frame 1, receiving products from the conveyor frame 1 and achieving transitional transfer. A sorting mechanism 7 is located below the auxiliary moving mechanism 6, used for further sorting the products transferred by the auxiliary moving mechanism 6.

[0037] Reference Figure 1 Several rollers 3 are evenly distributed and rotatably connected to the top of the conveyor frame 1. A sprocket 10 is fixedly sleeved at one end of each roller 3, and the several sprockets 10 are linked by a chain. A drive motor 8 is fixed on one side of the conveyor frame 1. A pulley is fixedly sleeved at one end of one of the rollers 3 and the two pulleys are connected by a transmission belt 9.

[0038] The top of the conveyor frame 1 is evenly connected to several rollers 3 via array-type bearing seats. One end of each roller 3 is fixedly fitted with a sprocket 10 via a flat key. Adjacent sprockets 10 form a closed transmission loop through a standard sleeve roller chain. A drive motor 8 is fixed to one side of the conveyor frame 1 by bolts. The output shaft of the drive motor 8 is fixedly fitted with a drive pulley via a shrink sleeve. The end of the roller 3 adjacent to the output shaft is fixedly fitted with a driven pulley in the same manner. The two pulleys are connected by a V-shaped transmission belt 9 through friction transmission. When the drive motor 8 starts, its output torque is transmitted to the corresponding roller 3 through the transmission belt 9. The rotational motion of the roller 3 is synchronously diffused to all rollers 3 through the meshing transmission of the sprocket 10 and the chain, forming a continuous and stable conveying power source.

[0039] Reference Figure 1 , Figure 3 and Figure 4 The weighing mechanism 4 includes a first hydraulic cylinder 402 and a weighing module 403. The first hydraulic cylinder 402 is fixed to the bottom of the conveyor frame 1, and the output end of the first hydraulic cylinder 402 is connected to the weighing module 403. At least three ejector plates 401 are fixed to the top of the weighing module 403. The ejector plates 401 penetrate the gap between adjacent rollers 3 and extend to the top of the conveyor frame 1. The lifting height of the ejector plates 401 is greater than the top surface of the rollers 3.

[0040] The first hydraulic cylinder 402 of the weighing mechanism 4 is fixed to the mounting base at the bottom of the conveyor frame 1 by bolts, and its output end is rigidly connected to the base of the weighing module 403 through a flange. At least three ejector plates 401 are fixed to the top of the weighing module 403 by welding or threaded connection. These ejector plates 401 are arranged at equal intervals in the gap between adjacent rollers 3, and their top edges are chamfered to avoid scratching the product surface. When the first hydraulic cylinder 402 is started, the output end pushes the weighing module 403 to rise vertically, and the ejector plates 401 are simultaneously ejected from the gap between the rollers 3 at a uniform speed. The final lifting position is precisely controlled by the displacement sensor built into the hydraulic cylinder to ensure that the upper surface of the ejector plate 401 is at least 5mm higher than the top plane of the roller 3, thereby completely lifting the product and separating it from the conveyor contact. The weighing module 403 integrates a dynamic weighing sensor, which can collect weight data in real time at the moment the product is lifted, and transmit the data to the external control system through a wireless or wired communication module.

[0041] Reference Figure 1 and Figure 5 The rejection mechanism 5 includes an electric telescopic cylinder 501 and a second hydraulic cylinder 503. The electric telescopic cylinder 501 is fixed to the bottom of the conveyor frame 1. The output shaft of the electric telescopic cylinder 501 is connected to a connecting rod 504. The top of the connecting rod 504 passes through the gap between the rollers 3 and is fixed to a rejection plate 502. The second hydraulic cylinder 503 is fixed to one side of the rejection plate 502. An auxiliary push plate 505 is fixed to the output end of the second hydraulic cylinder 503. The rejection plate 502 has a through hole for the auxiliary push plate 505 to slide. The lateral movement trajectory of the auxiliary push plate 505 is parallel to the movement direction of the rejection plate 502.

[0042] The electric telescopic cylinder 501 of the rejection mechanism 5 is fixed to the bracket at the bottom of the conveyor frame 1 by bolts. Its output shaft is connected to the connecting rod 504 by a threaded connection to form a detachable linkage. The top of the connecting rod 504 passes through the gap of the roller 3 through a guide sleeve, and the end is fixed to the rejection plate 502 by welding or a snap-fit ​​structure. The second hydraulic cylinder 503 is fixed to the side of the rejection plate 502 by a flange, and its output end is hinged to the auxiliary push plate 505 by a pin. The bottom of the auxiliary push plate 505 is provided with a guide groove, which forms a sliding fit with the slide rail preset inside the rejection plate 502 to ensure that its lateral movement trajectory is parallel to the pushing direction of the rejection plate 502. When the electric telescopic cylinder 501 is started, the output shaft pushes the connecting rod 504 to drive the rejection plate 502 to extend horizontally from the gap of the roller 3 to initially reject unqualified products. If small or irregularly shaped products are encountered, the second hydraulic cylinder 503 is started simultaneously, and the output end pushes the auxiliary push plate 505 to extend out of the through hole of the rejection plate 502 for a second time, so as to ensure complete rejection by extending the effective contact area.

[0043] Reference Figure 1The auxiliary moving mechanism 6 includes a removal frame 601, rollers 602 and scanning mechanism 603. The removal frame 601 is fixed on one side of the conveyor frame 1. Several rollers 602 are evenly distributed and rotatably connected to the top of the removal frame 601. Two scanning mechanisms 603 are symmetrically fixed on both sides of the removal frame 601. A baffle 604 is rotatably connected to the side of the removal frame 601 away from the conveyor frame 1.

[0044] The removal frame 601 of the auxiliary moving mechanism 6 is fixed to the side wall of the conveyor frame 1 by a rigid connector. Several rollers 602 are evenly rotatably connected to its top by an array of bearing seats. Two scanning mechanisms 603 are symmetrically fixed to both sides of the removal frame 601 by adjustable brackets. Their scanning windows face the surface of the rollers 602 and can collect product identification information in real time. A baffle 604 is rotatably connected to the side of the removal frame 601 away from the conveyor frame 1 by a hinge or rotating shaft. In the initial state, the baffle 604 forms a limiting boundary with the end of the rollers 602. When it is necessary to transfer products, it can be rotated to an inclined angle by manual or electric means to serve as a transition guide surface for the products to slide from the rollers 602 to the sorting mechanism 7.

[0045] The scanning mechanism 603 uses a linear CCD sensor and a high-brightness LED linear light source to achieve high-speed dynamic scanning through strobe control technology. After the scanning data is acquired by a 12-bit ADC converter, it is transmitted to an external controller in real time through the GigE interface, with a transmission rate of 1Gbps. The internal FPGA chip is used for preprocessing, which can recognize one-dimensional barcodes, two-dimensional codes and OCR character information in real time, with a recognition response time of less than 50ms.

[0046] Reference Figures 1-3 The sorting mechanism 7 includes a base 708, a rotating shaft 707, and a rotating plate 701. The base 708 is fixed to one side of the removal frame 601. The rotating shaft 707 is rotatably connected to the top of the base 708. The rotating plate 701 is fixed to the top of the rotating shaft 707. The rotating plate 701 is rectangular and has an open structure on one side. A third hydraulic cylinder 702 is fixed to each of the adjacent sides of the top of the base 708. The output end of the third hydraulic cylinder 702 is connected to a push-out plate 706. Sliding plates 703 are fixed to the other two sides of the top of the base 708. The sorting mechanism 7 also includes a fourth hydraulic cylinder 704 and a linkage shaft 705. The fourth hydraulic cylinder 704 is rotatably connected to the top of the base 708. The output end of the fourth hydraulic cylinder 704 is fixed to the bottom of the rotating shaft 707 via the linkage shaft 705.

[0047] The base 708 of the sorting mechanism 7 is fixed to the side wall of the removal frame 601 by a rigid connector. A rotating shaft 707 is rotatably connected to its top via a bearing seat, ensuring smooth rotation of the rotating shaft 707. A rotating plate 701 is fixed to the top of the rotating shaft 707 via welding or a flange connection. A third hydraulic cylinder 702 is bolted to adjacent sides of the top of the base 708. Its output end is threadedly connected to an ejector plate 706, forming a detachable linkage. The bottom of the ejector plate 706 has a guide groove that slides against a pre-set slide rail on the base 708, ensuring its pushing direction is aligned with the central axis of the rotating plate 701. Sliding plates are fixed to the other two sides of the top of the base 708. 703. The fourth hydraulic cylinder 704 is fixed to the top of the base 708 via a rotating support. Its output end is rigidly connected to the bottom of the rotating shaft 707 via a linkage shaft 705. When the fourth hydraulic cylinder 704 is started, the output end pushes the linkage shaft 705 to drive the rotating shaft 707 to rotate, thereby adjusting the opening direction of the rotating plate 701. The rotation angle of the rotating plate 701 is fed back to the control system in real time through the displacement sensor built into the hydraulic cylinder to ensure that the opening end is accurately aligned with the target slide plate 703. Driven by the third hydraulic cylinder 702, the push plate 706 can smoothly push the product in the rotating plate 701 along the opening end to the surface of the slide plate 703 to complete the sorting action.

[0048] The controller adopts a layered modular design, with the bottom layer being a microprocessor motherboard.

[0049] Dynamic weighing control: The sensor data is smoothed by the built-in FIR filtering algorithm, and the weight value is calculated in real time by combining the product conveying speed, with an error correction accuracy of ±0.5%.

[0050] Elimination logic judgment: Automatically identify unqualified products based on preset thresholds, trigger the second hydraulic cylinder to perform a lateral push-out action, and simultaneously record abnormal data to the local database;

[0051] Classification path planning: The Dijkstra algorithm is used to generate the shortest classification path, which drives the rotary axis motor to adjust the angle of the classification plate, supporting dynamic switching of up to 8 classification channels;

[0052] Human-machine interface: Real-time operating status is displayed through a 7-inch touch screen, which supports parameter configuration and fault code query. Data can be exported via USB interface.

[0053] The working principle of the product dynamic weighing and automatic rejection device of this utility model is as follows: According to the external dimensions of the product to be processed, the guide plates 2 symmetrically arranged on the top of the conveyor frame 1 are slidably adjusted so that the distance between the two guide plates matches the width of the product, ensuring that the product always moves along the central axis of the roller 3 during the subsequent conveying process.

[0054] Start the drive motor 8 fixed on one side of the conveyor frame 1. The output shaft of the drive motor 8 drives the single roller 3 connected to it to rotate through the pulley fixed on its outer periphery and the transmission belt 9. The sprocket 10 at one end of the roller 3 drives the other rollers 3 to rotate synchronously through the chain.

[0055] When the product is guided into the middle of the conveyor frame 1 along the guide plate 2, it moves to the top of the weighing mechanism 4 under the drive of the roller 3. At this time, the control module triggers the first hydraulic cylinder 402 to start, and the output axis of the first hydraulic cylinder 402 extends upward, driving the weighing module 403 connected to its top and at least three ejector plates 401 fixed to the top of the weighing module 403 to rise synchronously; the ejector plates 401 pass through the gap between adjacent rollers 3, lifting the product off the surface of the roller 3 and separating it from the conveying contact.

[0056] After the product is fully supported by the top plate 401, the weighing module 403 collects the product weight data in real time and transmits the data to the external control module instantly. The control module quickly analyzes the data to determine whether the product weight meets the preset standard, and generates subsequent rejection or release control instructions.

[0057] After weighing is completed, the output shaft of the first hydraulic cylinder 402 retracts downward, driving the weighing module 403 and the ejector plate 401 to descend synchronously until the ejector plate 401 falls completely below the roller 3; the product falls back onto the surface of the running roller 3 and continues to move along the conveying direction to enter the next processing stage.

[0058] If the product weight does not meet the standard, the control module triggers the second hydraulic cylinder 503 to start. The output shaft of the second hydraulic cylinder 503 drives the connecting rod 504 connected to it to move laterally. The top of the connecting rod 504 passes through the gap of the roller 3, driving the rejection plate 502 fixed on its top to move synchronously, pushing the unqualified products on the roller 3 laterally out of the conveyor frame 1, completing the routine rejection.

[0059] If the product to be rejected is a small or irregularly shaped part that is difficult for the rejection plate 502 to effectively contact, the control module simultaneously starts the electric telescopic cylinder 501; the output shaft of the electric telescopic cylinder 501 passes through the through hole on the rejection plate 502 and pushes the auxiliary push plate 505 to extend, so that the auxiliary push plate 505 can accurately contact the small or irregularly shaped unqualified product and push it to the surface of the roller 602 of the auxiliary moving mechanism 6.

[0060] Products pushed onto roller 602, including qualified products requiring classification or special unqualified products, roll naturally along the surface of roller 602. During the process, they pass through scanning mechanisms 603 symmetrically fixed on both sides of removal frame 601. The scanning mechanism 603 automatically identifies the barcode or QR code on the product surface, collects information such as product category and specifications, and transmits the information to the control module.

[0061] The baffle 604 rotates: on the one hand, it releases the baffle 604 from the restriction of the product rolling off the roller 602, and on the other hand, it makes the baffle 604 form an inclined guide surface, which serves as a transition bridge for the product to slide from the roller 602 to the rotating plate 701 of the sorting mechanism 7, ensuring that the product falls smoothly into the rotating plate 701.

[0062] The control module activates the fourth hydraulic cylinder 704. The output shaft of the fourth hydraulic cylinder 704 drives the linkage shaft 705 to extend and retract. The linkage shaft 705 drives the rotating shaft 707 fixed to it to rotate on the top of the base 708. The rotating plate 701 at the top of the rotating shaft 707 rotates synchronously with the rotating shaft 707 until the rectangular opening end of the rotating plate 701 is aligned with the classification channel determined by the target slide plate 703 according to the scanning information.

[0063] After the rotating plate 701 is oriented, the control module activates the third hydraulic cylinder 702 on the side opposite to the target slide plate 703; the output shaft of the third hydraulic cylinder 702 pushes the ejector plate 706 to move into the rotating plate 701, pushing the product in the rotating plate 701 along the open end to the aligned surface of the slide plate 703, and the product finally slides out along the slide plate 703, completing the orientation and classification.

[0064] It should be noted that, in actual implementation, the structure depicted in the accompanying drawings is not a fixed or unchanging embodiment. The components of the embodiments of this invention described and shown in these drawings can typically be arranged and designed in various different configurations. Furthermore, the accompanying drawings and abstract drawings are merely illustrative and do not represent the specific structure or actual quantity in a concrete implementation.

[0065] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The use of terms such as "a" or "an" in this specification and claims does not necessarily indicate a limitation on quantity. Terms such as "comprising" or "including" mean that the element or component preceding the word encompasses the element or component listed following the word and its equivalents, without excluding other elements or components. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0066] The exemplary embodiments of the present invention have been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of the present invention, and various combinations can be made to the various technical features and structures proposed by the present invention without exceeding the protection scope of the present invention.

Claims

1. A product dynamic weighing and automatic rejection device, comprising a conveyor frame (1), characterized in that: A guide plate (2) is symmetrically slidably connected to one side of the top of the conveyor frame (1). A weighing mechanism (4) is slidably arranged at the top of the conveyor frame (1) near the guide plate (2). A rejection mechanism (5) is slidably connected to the top side wall of the conveyor frame (1). An auxiliary moving mechanism (6) is fixedly connected to one side of the conveyor frame (1). A sorting mechanism (7) is arranged below the auxiliary moving mechanism (6).

2. The product dynamic weighing and automatic rejection device according to claim 1, characterized in that: The top of the conveyor frame (1) is evenly connected to several rollers (3), and each roller (3) is fixedly fitted with a sprocket (10) at one end. The several sprockets (10) are linked by a chain. A drive motor (8) is fixed on one side of the conveyor frame (1). The output shaft of the drive motor (8) and one end of one of the rollers (3) are respectively fitted with pulleys. The two pulleys are connected by a transmission belt (9).

3. The product dynamic weighing and automatic rejection device according to claim 1, characterized in that: The weighing mechanism (4) includes a first hydraulic cylinder (402) and a weighing module (403). The first hydraulic cylinder (402) is fixed at the bottom of the conveyor frame (1). The output end of the first hydraulic cylinder (402) is connected to the weighing module (403). At least three ejector plates (401) are fixed on the top of the weighing module (403). The ejector plates (401) pass through the gap between adjacent rollers (3) and extend to the top of the conveyor frame (1).

4. The product dynamic weighing and automatic rejection device according to claim 2, characterized in that: The rejection mechanism (5) includes an electric telescopic cylinder (501) and a second hydraulic cylinder (503). The electric telescopic cylinder (501) is fixed at the bottom of the conveyor frame (1). The output shaft of the electric telescopic cylinder (501) is connected to a connecting rod (504). The top of the connecting rod (504) passes through the gap of the roller (3) and is fixed with a rejection plate (502).

5. The product dynamic weighing and automatic rejection device according to claim 4, characterized in that: The second hydraulic cylinder (503) is fixed on one side of the rejection plate (502), and an auxiliary push plate (505) is fixed at the output end of the second hydraulic cylinder (503). The rejection plate (502) has a through hole for the auxiliary push plate (505) to slide.

6. The product dynamic weighing and automatic rejection device according to claim 1, characterized in that: The auxiliary moving mechanism (6) includes a removal frame (601), rollers (602) and a scanning mechanism (603). The removal frame (601) is fixed to one side of the conveyor frame (1). Several rollers (602) are evenly distributed and rotatably connected to the top of the removal frame (601). Two scanning mechanisms (603) are symmetrically fixed to both sides of the removal frame (601). A baffle (604) is rotatably connected to the side of the removal frame (601) away from the conveyor frame (1).

7. The product dynamic weighing and automatic rejection device according to claim 6, characterized in that: The sorting mechanism (7) includes a base (708), a rotating shaft (707), and a rotating plate (701). The base (708) is fixed to one side of the removal rack (601). The rotating shaft (707) is rotatably connected to the top of the base (708). The rotating plate (701) is fixed to the top of the rotating shaft (707). The rotating plate (701) is rectangular and has an open structure on one side. The base (708) has a third hydraulic cylinder (702) fixed on each of the adjacent sides of the top. The output end of the third hydraulic cylinder (702) is connected to a push plate (706). The other two sides of the top of the base (708) have sliding plates (703) fixed.

8. The product dynamic weighing and automatic rejection device according to claim 7, characterized in that: The sorting mechanism (7) further includes a fourth hydraulic cylinder (704) and a linkage shaft (705). The fourth hydraulic cylinder (704) is rotatably connected to the top of the base (708), and the output end of the fourth hydraulic cylinder (704) is fixed to the bottom of the rotating shaft (707) through the linkage shaft (705).

9. The product dynamic weighing and automatic rejection device according to claim 3, characterized in that: The lifting height of the ejector plate (401) is greater than the top plane of the roller (3).

10. The product dynamic weighing and automatic rejection device according to claim 5, characterized in that: The lateral movement trajectory of the auxiliary push plate (505) is parallel to the movement direction of the rejection plate (502).

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