Full-automatic combined metering and weighing device

Abstract

The utility model belongs to the technical field of packaging machines, and particularly relates to a full-automatic combined metering and weighing device which comprises a material lifting mechanism, an electronic combined scale and a bag feeding type packaging mechanism, one end of the material lifting mechanism is connected with the electronic combined scale, and the material lifting mechanism comprises a storage bin, a Z-shaped feeding frame and a belt transmission assembly. The storage bin is fixedly installed at the bottom end of one side of the Z-shaped feeding frame, and a discharging port of the storage bin communicates with the Z-shaped feeding frame. The electronic combination scale comprises a fixed supporting frame, an electronic scale head assembly and a weighing hopper, one end of the fixed supporting frame is fixedly connected with the electronic scale head assembly, the lower portion of the electronic scale head assembly is fixedly connected with the weighing hopper, and the weighing hopper is connected with a control mechanism through an electric wire; according to the full-automatic combined type metering and weighing device, all the devices and mechanisms are used in a matched mode, the filling mode of simultaneous weighing and intelligent combination of multiple material channels can be achieved, the weighing and filling speed is increased, and the packaging efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of packaging machine technology, and specifically relates to a fully automatic combined metering and weighing device. Background Technology

[0002] The automatic weighing and packaging machine is a computer-controlled packaging device that integrates automatic feeding, automatic weighing, automatic filling, and automatic bag dropping. It consists of a feeding device, weighing device, dropping device, automatic sealing device, and control system. This is an automatic weighing vertical packaging machine used for packaging block, granule, flake, bulk, strip, and irregular solid materials. The entire machine is designed to food-grade standards and can be used for packaging materials in the food, pharmaceutical, and tea industries.

[0003] Automatic weighing and packaging machines generally use electronic multi-head scales for weighing. In China, they are also commonly called combination scales or combination packaging scales. The engineering term is "selective combination weighing instrument". It consists of multiple independent weighing units with feeding and discharging structures. The computer uses the principle of permutation and combination to automatically optimize and calculate the load of the weighing units, and obtain the best weight combination that is closest to the target weight value for packaging.

[0004] Traditional packaging operations rely entirely on manual filling. However, manual packaging is not only extremely inefficient, but operators also risk contaminating the materials during the process. Automated packaging machines, on the other hand, generally do not allow for the automatic and rapid lifting and conveying of materials, which significantly affects the material conveying speed during machine operation. Furthermore, the electronic multi-head scales used have low accuracy and are prone to significant deviations after prolonged operation. Utility Model Content

[0005] The purpose of this utility model is to provide a fully automatic combined weighing and metering device to solve one or more technical problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A fully automatic combined weighing and metering device includes a material lifting mechanism, an electronic combined scale, and a bag-feeding packaging mechanism. One end of the material lifting mechanism is connected to the electronic combined scale, and the material lifting mechanism includes a storage bin, a Z-shaped feeding frame, and a belt drive assembly. The storage bin is fixedly installed on the bottom of one side of the Z-shaped feeding frame, and the outlet of the storage bin is connected to the Z-shaped feeding frame. A discharge hopper is provided at the bottom of the Z-shaped feeding frame away from the storage bin, and the discharge hopper is positioned above the inlet of the electronic combined scale. The electronic combined scale includes a fixed support frame, an electronic scale head assembly, and a weighing hopper. One end of the fixed support frame is fixedly connected to the electronic scale head assembly. Multiple electronic scale head assemblies are provided, and the top of each electronic scale head assembly is connected to an upper hopper, which is connected to the lower hopper. The bottom of the electronic scale head assembly is fixedly connected to the weighing hopper, and the weighing hopper is connected to a control mechanism via an electric wire.

[0008] As a further improvement to the above technical solution, the belt drive assembly 13 includes a plurality of drive wheels respectively fixed in the Z-shaped feed frame, a feeding belt covering the drive wheels, and a drive motor for driving the drive wheels to rotate. The drive motor is installed in the Z-shaped feed frame located below the storage bin, wherein the drive wheels located at the connecting corner of the Z-shaped feed frame are arranged in two sets facing each other.

[0009] As a further improvement to the above technical solution, a support platform is provided below the electronic combination scale, a protective railing is welded to the top of the support platform, a connecting hole is opened on the support platform, one end of the weighing hopper passes through the connecting hole and extends to the inlet of the bag-type packaging mechanism, and a stair frame is fixedly connected to one side of the support platform.

[0010] As a further improvement to the above technical solution, the bag-type packaging mechanism includes a chassis, a packing mechanism, and an electrical control box. The chassis is installed below the weighing hopper, the packing mechanism is located inside the chassis, and the electrical control box is located on one side of the packing mechanism. The electrical control box is signal-connected to the control mechanism to control and drive the packing mechanism to seal and pack the materials.

[0011] As a further improvement to the above technical solution, the packaging mechanism includes a circular workstation turntable and a bag-picking assembly. The circular workstation turntable is rotatably connected to the machine housing and is located at the center of the machine housing. Multiple bag-picking assemblies are provided, and the multiple bag-picking assemblies are arranged around the edge of the circular workstation turntable.

[0012] As a further improvement to the above technical solution, the outer circumference of the circular workstation turntable is provided with a bag feeding component, a coding component, a shaping component and a sealing component. The bag feeding component is arranged perpendicular to the circular workstation turntable, and one end of the bag feeding component is connected to the bag picking component. The shaping component is arranged directly above the bag picking component. A discharge conveyor belt is arranged below the sealing component.

[0013] In summary, the beneficial effects of this utility model are as follows:

[0014] 1. The fully automatic combined weighing and metering device of this utility model, by combining various devices and mechanisms, can realize simultaneous weighing of multiple material channels and intelligent combination filling method, which speeds up the weighing and filling speed and improves packaging efficiency; by using the lifting mechanism for automatic feeding and automatic filling, the equipment can change the pollution that may be caused by the traditional manual filling packaging method.

[0015] 2. The electronic combination scale in this utility model adopts electronic intelligent weighing and digital measurement, which facilitates accurate calculation and optimization of multi-channel material combination; and the device has a high degree of integration, with the control mechanism controlled by a single-chip microcomputer and PLC, realizing the integration of processes such as feeding, weighing, filling, coding, bagging, and sealing, thereby improving the automation and reliability of packaging.

[0016] 3. This utility model features a support platform, a staircase, and a guardrail at the bottom of the electronic combination scale. The staircase facilitates climbing operations, and the guardrail is welded to the support platform, enabling convenient climbing operations for the bag packaging mechanism and improving safety when climbing. Simultaneously, the bag packaging mechanism is located at the bottom of the support platform, facilitating the falling of weighed materials into the bag packaging mechanism for filling and packaging, ensuring the entire production process is fully automated without manual intervention and improving work efficiency. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic diagram of the structure of the fully automatic combined weighing and metering device of this utility model;

[0019] Figure 2 This is a top view of the fully automatic combined weighing and metering device of this utility model;

[0020] Figure 3 This is a schematic diagram of the electronic combination scale installed on the support platform in this utility model.

[0021] Explanation of the reference numerals in the figure:

[0022] 1. Material lifting mechanism; 11. Storage silo; 12. Z-shaped feeding rack; 13. Belt drive assembly; 131. Drive wheel; 132. Feeding belt; 133. Drive motor; 14. Discharge hopper; 2. Electronic combination scale; 21. Fixed support frame; 22. Electronic scale head assembly; 23. Weighing hopper; 24. Feeding hopper; 25. Control mechanism; 3. Bag-feeding packaging mechanism; 31. Chassis; 32. Packaging mechanism; 321. Circular station turntable; 322. Bag picking assembly; 323. Bag feeding assembly; 324. Coding assembly; 325. Shaping assembly; 326. Bag sealing assembly; 327. Discharge conveyor belt; 33. Electrical control box; 4. Support platform; 41. Connecting hole; 5. Guardrail; 6. Staircase frame. Detailed Implementation

[0023] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0024] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "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, the above terms should not be construed as limitations on this utility model.

[0025] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.

[0026] Reference Figures 1 to 3 The following are several embodiments of a fully automatic combined weighing and metering device of this utility model.

[0027] A fully automatic combined weighing and metering device includes a material lifting mechanism 1, an electronic combined scale 2, and a bag-feeding packaging mechanism 3. One end of the material lifting mechanism 1 is connected to the electronic combined scale 2, and the material lifting mechanism 1 includes a storage bin 11, a Z-shaped feeding frame 12, and a belt drive assembly 13. The storage bin 11 is fixedly installed on the bottom end of one side of the Z-shaped feeding frame 12, and the discharge port of the storage bin 11 is connected to the Z-shaped feeding frame 12. A feeding hopper is provided at the bottom of the end of the Z-shaped feeding frame 12 away from the storage bin 11. 14. The feeding hopper 14 is positioned directly above the feed inlet of the electronic combination scale 2. The electronic combination scale 2 includes a fixed support frame 21, an electronic scale head assembly 22, and a weighing hopper 23. One end of the fixed support frame 21 is fixedly connected to the electronic scale head assembly 22. Multiple electronic scale head assemblies 22 are provided. The top of the multiple electronic scale head assemblies 22 is connected to an upper hopper 24, which is connected to the feeding hopper 14. The lower part of the electronic scale head assembly 22 is fixedly connected to the weighing hopper 23. The weighing hopper 23 is connected to a control mechanism 25 via a wire.

[0028] Specifically, materials are manually poured into the storage bin 11 of the material lifting mechanism 1. Under the action of gravity, the materials in the storage bin 11 fall onto the belt drive assembly 13 in the Z-shaped feeding frame 12. The drive motor 133 drives the belt drive assembly 13 to move, thereby transporting the materials from the bottom to the top. The materials are discharged from the discharge hopper 14 into the electronic combination scale 2. The electronic combination scale 2 vibrates evenly in all directions to feed multiple electronic weighing head assemblies 22. There are 14 electronic weighing head assemblies 22. The electronic weighing head assemblies 22 then discharge the materials into the weighing hopper 23. The electronic weighing head assemblies 22 automatically pick up 3 or 4 weighing heads at random. The weight of the hoppers is used to combine materials. Three or four hoppers that meet the set tolerance range will automatically open and release the material. The weighing hopper 23 is equipped with a weighing sensor. When a certain amount of material is stored in the electronic weighing head assembly 22, a portion of the material is first released into the weighing hopper 23. Then, through the measurement of the weighing sensor in the weighing hopper and the calculation of the control mechanism 25, it is calculated that the total weight of the material in the weighing hopper 23 is exactly the weight of the material to be packaged. Then, the weighing hopper 23 that meets the requirements is opened, allowing the material to be gathered together and finally falling into the bag packaging mechanism 3 below for packaging.

[0029] like Figure 2 As shown, the belt drive assembly 13 includes multiple drive wheels 131 respectively fixed in the Z-shaped feed rack 12, a feed belt 132 covering the drive wheels 131, and a drive motor 133 that drives the drive wheels 131 to rotate. The drive motor 133 is installed in the Z-shaped feed rack 12 located below the storage bin 11. The drive wheels 131 located at the corner of the Z-shaped feed rack 12 are arranged in two sets facing each other.

[0030] Specifically, the belt drive assembly 13 of the material lifting mechanism 1 is located inside the enclosed Z-shaped feed rack 12. The advantage of being fully enclosed and leak-free is its good sealing performance, which is suitable for lifting and conveying granular bulk materials. During material transportation, the material is placed inside the Z-shaped feed rack 12 and conveyed by the feeding belt 132. Under the conveying of the feeding belt 132, the material is transported from the hopper 14 to the inside of the electronic weighing unit, thereby realizing automatic and rapid lifting and conveying of materials and speeding up the movement of materials. At the same time, the structural design of the belt drive assembly 13 is the same as that of the Z-shaped feed rack 12, both being Z-shaped structures. Therefore, when conveying materials, they can be transferred from a low position to a high position, meeting the structural design requirements of the general packaging machine with the feed inlet at the top.

[0031] In this embodiment, a support platform 4 is provided below the electronic combination scale 2, and a protective railing 5 is welded to the top of the support platform 4. A connecting hole 41 is provided on the support platform 4, and one end of the weighing hopper 23 passes through the connecting hole 41 and extends to the top of the inlet of the bag packaging mechanism. A stair frame 6 is also fixedly connected to one side of the support platform 4.

[0032] Specifically, the staircase 6 facilitates climbing operations, and the guardrail 5 is welded to the support platform 4, enabling convenient climbing operations for the bag packaging mechanism 3 and improving safety when climbing. At the same time, the bag packaging mechanism 3 is located at the bottom of the support platform 4, which facilitates the falling of weighed materials into the bag packaging mechanism 3 for filling and packaging, ensuring that the entire production process is fully automated without manual intervention and improving work efficiency.

[0033] In this embodiment, the bag packaging mechanism 3 includes a housing 31, a packing mechanism 32, and an electrical control box 33. The housing 31 is installed below the weighing hopper 23, the packing mechanism 32 is disposed inside the housing 31, and the electrical control box 33 is located on one side of the packing mechanism 32. The electrical control box 33 is connected to the control mechanism 25 by signal to control and drive the packing mechanism 32 to seal and pack the material.

[0034] Specifically, the entire production process of material packaging consists of steps such as material screening, material lifting, multi-head combined weighing, automatic detection and rejection of out-of-tolerance products, bag opening, automatic coding, material filling, shaping and sealing, and packaging completion and output. The electrical control box 33 controls the automatic operation of the entire process and has a counting function.

[0035] In this embodiment, the packaging mechanism 32 includes a circular workstation turntable 321 and a bag-taking assembly 322. The circular workstation turntable 321 is rotatably connected to the machine housing 31 and is located at the center of the machine housing 31. Multiple bag-taking assemblies 322 are provided and are arranged around the edge of the circular workstation turntable 321.

[0036] In this embodiment, a bag feeding component 323, a coding component 324, a shaping component 325, and a sealing component 326 are arranged circumferentially on the outer periphery of the circular workstation turntable 321. The bag feeding component 323 is arranged perpendicular to the circular workstation turntable 321, and one end of the bag feeding component 323 is connected to the bag taking component 322. The shaping component 325 is arranged directly above the bag taking component 322. A discharge conveyor belt 327 is arranged below the sealing component 326.

[0037] Specifically, after the packaging bags are neatly arranged, they are placed on the bag infeed assembly 323. When they reach the bag picking position under the rotation of the circular station turntable 321, the PLC system of the electrical control box 33 controls the action of the bag picking assembly 322 to pick up and hold the individual packaging bags. At the same time, in order to ensure reliable bag clamping, the bag picking assembly 322 uses a vacuum suction cup to quickly clamp the packaging bag and open it to both sides to complete the bag opening action. Then, the circular station turntable 321 rotates to move the coded packaging bag to the filling port. At that time, the weighing hopper 23 discharges the weighed material into the packaging bag. After the material in the packaging bag is filled, it is sorted by the shaping assembly 325 and then sealed to complete the packaging. The bag is then transported to the material box by the discharge conveyor belt 327.

[0038] The working principle of this utility model:

[0039] The overall operation process is as follows: materials are conveyed to the electronic combination scale by the material elevator; the electronic combination scale 2 weighs the materials according to the preset weight; the rejection mechanism removes and collects materials that do not meet the weight requirements; qualified materials are fed into packaging bags; the bag-type packaging mechanism 3 picks up the packaging bags and marks them with codes; after filling, the bags are shaped and sealed to complete the discharge. This fully automatic combined weighing and metering device utilizes various devices and mechanisms to achieve simultaneous weighing of multiple material channels and intelligent combination filling methods, which speeds up the weighing and filling speed and improves packaging efficiency. The automatic feeding and filling of the equipment by the lifting mechanism changes the pollution that may be caused by the traditional manual filling packaging method. At the same time, the electronic combination scale 2 adopts electronic intelligent weighing and digital metering, which facilitates accurate calculation and optimization of multi-channel material combination. Moreover, this device has a high degree of integration. The control mechanism 25 is controlled by a single-chip microcomputer and PLC to realize the integration of processes such as feeding, weighing, filling, marking, bagging, and sealing, thereby improving the automation and reliability of packaging.

[0040] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fully automatic combined weighing and metering device, comprising a material lifting mechanism, an electronic combined scale, and a bag-feeding packaging mechanism, characterized in that, One end of the material lifting mechanism is connected to the electronic combined scale, and the material lifting mechanism includes a storage bin, a Z-shaped feeding frame, and a belt drive assembly. The storage bin is fixedly installed on the bottom of one side of the Z-shaped feeding frame, and the outlet of the storage bin is connected to the Z-shaped feeding frame. A discharge hopper is provided at the bottom of the Z-shaped feeding frame away from the storage bin, and the discharge hopper is positioned above the inlet of the electronic combined scale. The electronic combined scale includes a fixed support frame, an electronic scale head assembly, and a weighing hopper. One end of the fixed support frame is fixedly connected to the electronic scale head assembly. Multiple electronic scale head assemblies are provided, and the top of each electronic scale head assembly is connected to an upper hopper, which is connected to the lower hopper. The bottom of the electronic scale head assembly is fixedly connected to the weighing hopper, and the weighing hopper is connected to a control mechanism via an electric wire.

2. The fully automatic combined weighing and metering device according to claim 1, characterized in that, The belt drive assembly includes multiple drive wheels respectively fixed inside the Z-shaped feed rack, a feeding belt covering the drive wheels, and a drive motor for driving the drive wheels to rotate. The drive motor is installed inside the Z-shaped feed rack located below the storage bin, wherein the drive wheels located at the connecting corner of the Z-shaped feed rack are arranged in two sets facing each other.

3. The fully automatic combined weighing and metering device according to claim 2, characterized in that, A support platform is provided below the electronic combination scale, and a protective railing is welded to the top of the support platform. A connecting hole is opened on the support platform, and one end of the weighing hopper passes through the connecting hole and extends to the inlet of the bag-type packaging mechanism. A stair frame is also fixedly connected to one side of the support platform.

4. The fully automatic combined weighing and metering device according to claim 3, characterized in that, The bag-packing mechanism includes a chassis, a packing mechanism, and an electrical control box. The chassis is installed below the weighing hopper, the packing mechanism is located inside the chassis, and the electrical control box is located on one side of the packing mechanism. The electrical control box is signal-connected to the control mechanism to control and drive the packing mechanism to seal and pack the materials.

5. The fully automatic combined weighing and metering device according to claim 4, characterized in that, The packaging mechanism includes a circular workstation turntable and a bag-picking assembly. The circular workstation turntable is rotatably connected to the machine housing and is located at the center of the machine housing. Multiple bag-picking assemblies are provided and are arranged around the edge of the circular workstation turntable.

6. The fully automatic combined weighing and metering device according to claim 5, characterized in that, The outer circumference of the circular workstation turntable is provided with a bag feeding component, a coding component, a shaping component, and a bag sealing component. The bag feeding component is arranged perpendicular to the circular workstation turntable, and one end of the bag feeding component is connected to the bag picking component. The shaping component is located directly above the bag picking component. A discharge conveyor belt is arranged below the bag sealing component.

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