Double-channel blank weighing mechanism

Abstract

This invention relates to a dual-channel feeding and weighing mechanism in the field of food packaging equipment technology. It includes a frame, a hopper, and a weighing sensor. The top of the frame has a first channel and a second channel. Both the first and second channels are equipped with feeding conveyor belts. The second channel also has a detachable limiting block. The hopper has a horizontally extendable connecting plate. The hopper can form an openable and closable conductive structure through the connecting plate. The connecting plate is movably connected to the weighing sensor through a horizontal moving component. A large range of material can be fed into the hopper through the first channel, bringing the packaged weight close to the critical value. Then, continuous single-material transport is carried out through the second channel until the weight enters the tolerance range. This achieves alternating large and small-range feeding effects, resulting in small weight deviation, which is beneficial for precise weight control of blueberries during the weighing and packaging process.

Description

Technical Field

[0001] This invention relates to the field of food packaging equipment technology, specifically a dual-channel material feeding and weighing mechanism. Background Technology

[0002] Blueberries are the fruit of a perennial low shrub belonging to the genus Vaccinium in the family Ericaceae. They are native to North America and East Asia and are distributed in countries and regions such as Korea, Japan, Mongolia, Russia, Europe, North America, and Heilongjiang, Inner Mongolia, and Changbai Mountain in Jilin, China. They grow at altitudes of 900 to 2300 meters. In addition to the usual sugars, acids, and vitamin C, blueberries are rich in vitamin E, vitamin A, vitamin B, superoxide dismutase (SOD), arbutin, protein, anthocyanins, dietary fiber, and minerals such as potassium, iron, zinc, and calcium.

[0003] In the weighing and packaging process of blueberries, mechanized weighing equipment is typically used for weighing and sorting. However, due to the high value of blueberries, the accuracy of weighing equipment is not always precise, resulting in significant weight discrepancies between boxes of blueberries. This affects both the processing and production quality control of the company and the consumer experience. Therefore, there is an urgent need to develop a dual-channel unloading weighing mechanism to meet practical needs. Summary of the Invention

[0004] The purpose of this invention is to provide a dual-channel material feeding and weighing mechanism to solve the above-mentioned defects.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] The dual-channel material feeding and weighing mechanism includes a frame, a hopper, and a weighing sensor. The top of the frame has a first channel and a second channel, which are arranged in parallel. Both the first and second channels are equipped with feeding conveyor belts. The second channel also has a detachable limiting block inside. The hopper is located at one end of the first and second channels. The hopper also has a horizontally retractable plug-in plate inside. The hopper can form an openable and closable conductive structure through the plug-in plate. The weighing sensor is located inside the frame, and the plug-in plate is movably connected to the weighing sensor through a horizontal moving component.

[0007] As a further embodiment of the above description, the horizontal movement component includes a support arm and a drive unit. One end of the support arm is connected to a weighing sensor, and the other end of the support arm is fixedly connected to the hopper. The drive unit is used to control the plug-in plate to move horizontally.

[0008] As a further embodiment of the above description, the top surface of the support arm is provided with a linear slide rail, and the plug-in plate is movably connected to the linear slide rail. The plug-in plate can slide along the axial direction of the support arm via the linear slide rail.

[0009] In the above description, as a further solution, the driving component is composed of a cylinder. One end of the cylinder is a cylinder shaft that can move horizontally. The end of the cylinder shaft is provided with a snap joint. The end of the plug plate near the cylinder shaft is provided with a snap seat. The end of the cylinder shaft is connected to the snap seat through the snap joint.

[0010] As a further embodiment of the above description, a magnetic attraction assembly is provided between the plug plate and the outer wall of the hopper. The middle part of the snap-fit ​​joint is an inwardly recessed snap-fit ​​groove. The thickness of the snap-fit ​​groove is greater than the wall thickness of the snap-fit ​​seat. When the plug plate extends into the hopper through the cylinder shaft, the snap-fit ​​joint and the snap-fit ​​seat are radially separated by the magnetic attraction assembly.

[0011] As a further embodiment of the above description, the magnetic attraction assembly includes a magnetic block and an induction suction plate. The magnetic block is located on the outer wall of the hopper near the buckle seat, and the induction suction plate is located on the end of the buckle seat away from the buckle connector. When the plug plate extends into the hopper through the cylinder shaft, the magnetic block and the induction suction plate are attracted by induction.

[0012] The beneficial effects of this invention are as follows:

[0013] The dual-channel feeding and weighing mechanism of this application has a first channel and a second channel at the top of the frame, adopting a dual-channel feeding structure. At the same time, a limiting block is set in the second channel to restrict the movement of only a single material. The material can be fed into the hopper over a large area in the first channel, bringing the gram weight of the packaged material close to the critical value. Then, the material is continuously transported in single pieces through the second channel until the gram weight is within the tolerance range. This can achieve the effect of alternating large-area and small-area feeding, and has the characteristic of small gram weight deviation. This is beneficial for the accurate control of the gram weight of blueberries in the weighing and packaging process. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the dual-channel material feeding and weighing mechanism described in Embodiment 1;

[0015] Figure 2 This is a schematic diagram of the internal structure of the dual-channel material feeding and weighing mechanism described in Embodiment 1 from a first angle.

[0016] Figure 3 This is a schematic diagram of the internal structure of the dual-channel material feeding and weighing mechanism described in Embodiment 1 from a second angle.

[0017] Figure 4 for Figure 2 A magnified schematic diagram of the structure of part A in the diagram;

[0018] Figure 5 for Figure 3 A magnified schematic diagram of the partial structure of B in the diagram;

[0019] Figure 6 This is a cross-sectional view of the dual-channel material feeding and weighing mechanism described in Embodiment 1.

[0020] Figure 7 This is a schematic diagram of the internal structure of the dual-channel material feeding and weighing mechanism described in Embodiment 2;

[0021] Figure 8 This is a cross-sectional view of the dual-channel material feeding and weighing mechanism described in Embodiment 2;

[0022] In the diagram: 1-Frame, 11-First channel, 12-Second channel, 121-Limit stop, 13-Feeding conveyor belt, 2-Hopper, 21-Plug-in plate, 22-Snap fastener, 3-Weight sensor, 4-Cylinder, 41-Cylinder shaft, 42-Snap fastener, 421-Snap fastener groove, 5-Support arm, 51-Linear slide rail, 6-Magnetic attraction assembly, 61-Magnetic block, 62-Induction suction plate. Detailed Implementation

[0023] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0024] Example 1:

[0025] Please see Figure 1-6 The dual-channel material feeding and weighing mechanism specifically implemented includes a frame 1, a hopper 2, and a weighing sensor 3. The top of the frame 1 is provided with a first channel 11 and a second channel 12, which are arranged in a parallel structure. Both the first channel 11 and the second channel 12 are provided with a feeding mesh belt 13. The second channel 12 is also provided with a detachable limiting block 121. The hopper 2 is located at one end of the first channel 11 and the second channel 12. The hopper 2 is also provided with a horizontally retractable plug-in plate 21. The hopper 2 can form an openable and closable conductive structure through the plug-in plate 21. The weighing sensor is located inside the frame 1, and the plug-in plate 21 is movably connected to the weighing sensor 3 through a horizontal moving component.

[0026] The system employs a dual-channel feeding structure, with a limiting block 121 in the second channel 12 restricting the movement of only a single material. This allows for large-scale feeding from the first channel 11 into the hopper 2, bringing the packaged weight close to the critical value. Then, the second channel 12 continuously transports individual materials until the weight falls within the tolerance range. This alternating feeding effect of large-scale and small-scale material drop results in minimal weight deviation, which is beneficial for precise weight control of blueberries during the weighing and packaging process.

[0027] Specifically, such as Figure 2-3 As shown, the horizontal moving assembly includes a support arm 5 and a drive unit. One end of the support arm 5 is connected to the weighing sensor 3, and the other end of the support arm 5 is fixedly connected to the hopper 2. The hopper 2 is suspended below the ends of the first channel 11 and the second channel 12 via the support arm 5. The drive unit is used to control the horizontal movement of the plug-in plate 21. The top surface of the support arm 5 is provided with a linear slide rail 51. The plug-in plate 21 is movably connected to the linear slide rail 51. The plug-in plate 21 can slide along the axial direction of the support arm 5 via the linear slide rail 51.

[0028] Preferably, the driving component can be composed of a cylinder 4, one end of which is a horizontally movable cylinder shaft 41. The end of the cylinder shaft 41 is provided with a fastener 42, and the end of the plug plate 21 near the cylinder shaft 41 is provided with a fastener 22. The end of the cylinder shaft 41 is connected to the fastener 22 through the fastener 42.

[0029] In a further embodiment, a magnetic attraction assembly 6 is provided between the plug-in plate 21 and the outer wall of the hopper 2. The magnetic attraction assembly 6 includes a magnetic block 61 and an induction suction plate 62. The magnetic block 61 is located on the outer wall of the hopper 2 near the buckle seat 22, and the induction suction plate 62 is located at the end of the buckle seat 22 away from the buckle connector 42. When the plug-in plate 21 extends into the hopper 2 through the cylinder shaft 41, the magnetic block 61 and the induction suction plate 62 are attracted by induction. The middle part of the buckle connector 42 is an inwardly recessed buckle groove 421. The thickness of the buckle groove 421 is greater than the wall thickness of the buckle seat 22. When the plug-in plate 21 extends into the hopper 2 through the cylinder shaft 41, the magnetic attraction assembly 6 causes the buckle connector 42 and the buckle seat 22 to be radially separated.

[0030] When the plug plate 21 extends into the hopper 2 through the cylinder shaft 41, the plug plate 21 will continue to move towards the side of the hopper 2 due to the magnetic attraction of the magnetic block 61 and the induction suction plate 62. At the same time, the thickness of the fastening groove 421 is greater than the wall thickness of the fastening seat 22, and the fastening seats 22 can be radially separated, so that the cylinder shaft 41 and the hopper 2 are in a state of non-contact. At this time, the weight of the hopper 2, the plug plate 21 and the internal material can be fully applied to the support arm 5, which can reduce the influence of the cylinder shaft 41 on the support force of the plug plate 21, and make the weight measured by the weighing sensor 3 more accurate.

[0031] Example 2:

[0032] Please see Figure 7-8 The specific implementation of the dual-channel material feeding and weighing mechanism has the same structure and will not be described again. The hopper 2 and the frame 1 are connected by a weighing sensor 3. One end of the weighing sensor 3 is fixedly connected to the outer wall of the hopper 2 and the other end is fixedly connected to the inside of the frame 1. The support arm is set at the bottom of the hopper 2, and the plug plate 21 can slide along the axial direction of the support arm 5 via the linear slide rail 51. The cylinder is set inside the frame 1, and the end of the cylinder shaft 41 is connected to the buckle seat 22 via the buckle connector 42. The magnetic attraction assembly 6 includes a magnetic block 61 and an induction suction plate 62. The magnetic block 61 is set on the outer wall of the hopper 2 near the buckle seat 22, and the induction suction plate 62 is set on the end of the buckle seat 22 away from the buckle connector 42. When the plug plate 21 extends into the hopper 2 through the cylinder shaft 41, the magnetic block 61 and the induction suction plate 62 are attracted by induction.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present invention without departing from the scope of the present invention are within the scope of the present invention.

Claims

1. A dual-channel material feeding and weighing mechanism, characterized in that, include: The frame has a first channel and a second channel on its top. The first channel and the second channel are arranged in a parallel structure. Both the first channel and the second channel are equipped with a feeding mesh belt. The second channel is also equipped with a detachable limiting block that restricts the movement of a single material. The hopper is located at one end of the first channel and the second channel. The hopper is also equipped with a horizontally retractable plug-in plate inside. The hopper can form an openable and closable conductive structure through the plug-in plate. A weighing sensor is installed inside the frame, and the plug-in plate is movably connected to the weighing sensor through a horizontal moving component; The top of the frame is equipped with a first channel and a second channel, adopting a dual-channel feeding structure. The first channel feeds a large area of ​​material into the hopper, bringing the weight of the packaged product close to the critical value. Then, the second channel continuously transports individual materials until the weight enters the tolerance range, achieving alternating large-area and small-area material feeding. The horizontal movement component includes a support arm and a drive unit. One end of the support arm is connected to a weighing sensor, and the other end of the support arm is fixedly connected to the hopper. The drive unit is used to control the plug-in plate to move horizontally. The top surface of the support arm is provided with a linear slide rail, and the plug-in plate is movably connected to the linear slide rail. The plug-in plate can slide along the axial direction of the support arm through the linear slide rail. The driving component is composed of a cylinder. One end of the cylinder is a horizontally movable cylinder shaft. The end of the cylinder shaft is provided with a fastener. The end of the plug plate near the cylinder shaft is provided with a fastener seat. The end of the cylinder shaft is connected to the fastener seat through the fastener. A magnetic attraction assembly is provided between the plug plate and the outer wall of the hopper. The middle part of the snap-fit ​​joint is an inwardly recessed snap-fit ​​groove. The thickness of the snap-fit ​​groove is greater than the wall thickness of the snap-fit ​​seat. When the plug plate extends into the hopper through the cylinder shaft, the snap-fit ​​joint and the snap-fit ​​seat are radially separated by the magnetic attraction assembly. The magnetic attraction assembly includes a magnetic block and a sensing plate. The magnetic block is located on the outer wall of the hopper near the buckle seat, and the sensing plate is located on the end of the buckle seat away from the buckle connector. When the plug plate extends into the hopper through the cylinder shaft, the magnetic block and the sensing plate are attracted to each other.

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