Automatic reflux circulator for uncombined products

Abstract

The utility model relates to the technical field of machinery, and discloses an uncombined product automatic backflow circulator which comprises a discharging box, a multi-head scale is arranged above the discharging box, storage hoppers arranged at equal intervals are arranged on the periphery of the multi-head scale, and weighing hoppers arranged at equal intervals are arranged on the periphery of the multi-head scale. According to the automatic backflow circulator for the uncombined products, the track capturing sensor is arranged at the bottom of the weighing hopper, so that the action of a discharging switch of the weighing hopper can be captured, and then the weighing hopper which is subjected to repeated uncombined discharging is monitored and processed; and the flow guide channel connected to the stock bin is arranged at the bottom of the uncombined rejecting feed opening, so that uncombined materials can automatically flow back to the elevator to be combined and weighed again, the accuracy and the working efficiency of the feeding operation of the multi-head scale are improved, and the working efficiency is improved. The multi-head scale solves the problem that the accuracy, stability and operation efficiency of blanking of the multi-head scale are affected by materials retained in the weighing hopper.

Description

Technical Field

[0001] This application relates to the field of mechanical technology, specifically to an automatic return circulation device for unassembled products. Background Technology

[0002] A multi-head scale, also known as a computer combination scale, combination scale, or multi-head electronic scale, is a device that uses the principle of combined weighing to weigh materials. It consists of multiple independent weighing units with feeding and discharging structures. Each unit is responsible for distributing the material to various vibrating discs, and through the principle of combined weighing, it obtains the optimal weight combination that is close to the target weight value for packaging.

[0003] During the material unloading and packaging process of a multi-head scale, materials that meet the weight requirements will be unloaded and packaged, while materials that cannot be combined multiple times will remain in the weighing hopper. The retained materials may be counted repeatedly or ignored in subsequent weighing processes, thus affecting the overall weighing accuracy. At the same time, the retained materials also require more time to replenish new materials to reach the target weight, reducing work efficiency. The retained materials may also accumulate, causing blockage of the unloading port and affecting the normal operation of the multi-head scale. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides an automatic return and circulation device for uncombined products. This device can return uncombined materials from multiple weighing operations to the multi-head scale, allowing them to be re-conveyed by the elevator back to the scale for a new round of combined weighing. This improves the accuracy and efficiency of the multi-head scale's material feeding operation. It also solves the problems of materials that cannot be combined multiple times remaining in the weighing hopper. This retained material may be repeatedly counted or ignored in subsequent weighing processes, affecting the overall weighing accuracy. Furthermore, material retention requires more time to replenish the material to reach the target weight, reducing operational efficiency. The retained material may also accumulate, causing blockages at the discharge port and affecting the normal operation of the multi-head scale.

[0005] To achieve the above objectives, this application provides the following technical solution: an automatic return and circulation device for unassembled products, including a feeding box, a multi-head scale above the feeding box, storage hoppers arranged at equal intervals around the outer periphery of the multi-head scale, weighing hoppers arranged at equal intervals around the outer periphery of the multi-head scale, a trajectory capture sensor at the bottom of each weighing hopper, a rotating shaft rotatably connected inside the feeding box, and a material distribution plate fixedly connected to the outer circumferential surface of the rotating shaft.

[0006] The front of the feeding box is fixedly connected to an outer shell, and a lead screw is rotatably connected inside the outer shell. A threaded tube is threadedly connected to the outer circumference of the lead screw, and a rack is fixedly connected to the outer circumference of the threaded tube. A gear is fixedly sleeved on the outer circumference of the rotating shaft, and the gear meshes with the rack. One end of the bottom of the feeding box is provided with a combined feeding port, and the other end of the bottom of the feeding box is provided with an uncombined rejection feeding port. A bag-feeding packaging machine is provided below the combined feeding port. A return channel is fixedly connected to the bottom of the uncombined rejection feeding port. A hoist is provided on the back of the feeding box, and a hopper is provided at the bottom of the hoist. The discharge end of the return channel is connected to the top of the hopper.

[0007] The above solution addresses the issue that materials that cannot be combined multiple times will remain in the weighing hopper. This retained material may be repeatedly counted or ignored during subsequent weighing processes, affecting the overall weighing accuracy. Furthermore, material retention requires more time to replenish the material and reach the target weight, reducing operational efficiency. Retained material may also accumulate, causing blockages at the discharge port and affecting the normal operation of the multi-head scale. By installing a trajectory capture sensor at the bottom of the weighing hopper, the discharge switch action can be captured, allowing for monitoring and processing of multiple uncombined discharges. By setting up a rotatable material distribution plate and a guide channel connecting to the hopper at the bottom of the uncombined rejection discharge port, uncombined material can automatically flow back to the elevator for recombining and weighing, improving the accuracy and efficiency of the multi-head scale's material feeding operation.

[0008] Furthermore, the material distribution plate is inclined, and its two ends are respectively connected to the combined feeding port and the uncombined rejection feeding port.

[0009] The above scheme enables the material distribution plate to distribute the falling materials, guide the assembled materials to the assembly discharge port for packaging, and guide the unassembled materials to the unassembled rejection discharge port for return.

[0010] Furthermore, a feeding hopper is fixedly connected to the bottom of the combined feeding port.

[0011] The above solution gathers the assembled materials through the hopper, facilitating subsequent packaging operations for the bag packaging machine.

[0012] Furthermore, the reflux channel is inclined, and there is a height difference between the inlet and outlet ends of the reflux channel.

[0013] The above scheme enables uncombined materials to flow back to the silo under gravity, and then be lifted again by the elevator for a new round of weighing.

[0014] Furthermore, a motor is provided at one end of the lead screw, and the motor is electrically connected to the trajectory capture sensor.

[0015] The above scheme uses a motor to power the lead screw, causing it to rotate. This rotation, in turn, drives the material distribution plate to rotate and distribute materials under the action of the rack and pinion. The motor, which is electrically connected to the trajectory capture sensor, can receive the feedback signal from the trajectory capture sensor and automatically start to drive the material distribution plate to rotate and distribute materials.

[0016] Furthermore, the upper surface of the material distribution plate is provided with a buffer layer, which is made of a soft material.

[0017] The above method buffers the falling material and prevents it from being damaged during the fall.

[0018] Furthermore, the hopper is equipped with a guide slope inside, and the guide slope is inclined.

[0019] The above scheme enables the material that flows back into the silo to be guided to the elevator by the guide slope for a new round of lifting and combined weighing.

[0020] Furthermore, a limiting rod is fixedly connected inside the outer casing, and the inside of the rack is slidably connected to the outer circumferential surface of the limiting rod.

[0021] The above scheme restricts the threaded tube, preventing it from rotating with the lead screw and ensuring that the rack always moves laterally, thus improving the stability of the rack's movement.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This automatic return and circulation device for uncombined products uses a trajectory capture sensor at the bottom of the weighing hopper to capture the feeding switch action of the hopper. This allows for monitoring and processing of multiple uncombined feedings from the weighing hopper. By incorporating a rotatable material distribution plate and a guide channel connected to the hopper at the bottom of the uncombined rejection port, the uncombined material is automatically returned to the elevator for recombining and weighing. This improves the accuracy and efficiency of multi-head scale feeding operations and solves the problem that material stagnating in the weighing hopper affects the accuracy, stability, and efficiency of multi-head scale feeding. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0025] Figure 2 This is a diagram of the outer shell structure of this application;

[0026] Figure 3 This is a structural diagram of the material feeding box for this application;

[0027] Figure 4 This is a structural diagram of the multi-head scale of this application;

[0028] Figure 5 This is a structural diagram of the silo for this application.

[0029] In the picture:

[0030] 1. Feeding box; 2. Multi-head scale; 3. Storage hopper; 4. Weighing hopper; 5. Track capture sensor; 6. Rotating shaft; 7. Distributor plate; 8. Housing; 9. Lead screw; 10. Threaded pipe; 11. Rack; 12. Gear; 13. Motor; 14. Combined feeding port; 15. Uncombined rejection feeding port; 16. Feeding hopper; 17. Bag packaging machine; 18. Return channel; 19. Elevator; 20. Storage bin; 21. Guide slope; 22. Limiting rod; 23. Buffer layer. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 , Figure 3 and Figure 4 An automatic return circulation device for unassembled products in this embodiment includes a feeding box 1, a multi-head scale 2 above the feeding box 1, storage hoppers 3 arranged at equal intervals around the multi-head scale 2, weighing hoppers 4 arranged at equal intervals around the multi-head scale 2, a trajectory capture sensor 5 at the bottom of each weighing hopper 4, a rotating shaft 6 rotatably connected inside the feeding box 1, and a material distribution plate 7 fixedly connected to the outer circumference of the rotating shaft 6.

[0033] Please see Figure 1 , Figure 2 and Figure 5The front of the feeding box 1 is fixedly connected to the outer shell 8. The inside of the outer shell 8 is rotatably connected to the lead screw 9. The outer circumference of the lead screw 9 is threadedly connected to the threaded tube 10. The outer circumference of the threaded tube 10 is fixedly connected to the rack 11. The outer circumference of the rotating shaft 6 is fixedly sleeved with the gear 12. The gear 12 meshes with the rack 11. One end of the bottom of the feeding box 1 is provided with a combined feeding port 14. The other end of the bottom of the feeding box 1 is provided with an uncombined rejection feeding port 15. Below the combined feeding port 14 is a bag-feeding packaging machine 17. The bottom of the uncombined rejection feeding port 15 is fixedly connected to the return channel 18. The back of the feeding box 1 is provided with a hoist 19. The bottom of the hoist 19 is provided with a hopper 20. The discharge end of the return channel 18 is connected to the top of the hopper 20.

[0034] Please see Figure 3 The material distribution plate 7 is inclined and its two ends are connected to the combined feeding port 14 and the uncombined rejection feeding port 15, respectively, so that the material distribution plate 7 can divide the falling material, guide the combined material to the combined feeding port 14 for packaging, and guide the uncombined material to the uncombined rejection feeding port 15 for return.

[0035] Please see Figure 1 and Figure 2 The bottom of the combined feeding port 14 is fixedly connected to the feeding hopper 16, which gathers the assembled materials to facilitate the subsequent packaging operation of the bag packaging machine 17.

[0036] Please see Figure 1 and Figure 5 The return channel 18 is inclined, and there is a height difference between the inlet and outlet ends of the return channel 18, which enables the uncombined material to flow back to the hopper 20 under the action of gravity, and then be lifted again by the elevator 19 for a new round of weighing.

[0037] Please see Figure 1 and Figure 4 One end of the lead screw 9 is equipped with a motor 13, which is electrically connected to the trajectory capture sensor 5. The motor 13 provides power to the lead screw 9, causing the lead screw 9 to rotate. In turn, under the action of the rack 11 and the gear 12, the material distribution plate 7 is driven to rotate and distribute materials. The motor 13, which is electrically connected to the trajectory capture sensor 5, can receive the signal fed back by the trajectory capture sensor 5 and then automatically turn on to drive the material distribution plate 7 to rotate and distribute materials.

[0038] Please see Figure 2 and Figure 3 The upper surface of the material distribution plate 7 is provided with a buffer layer 23, which is made of soft material to buffer the falling material and prevent the material from being damaged during the falling process.

[0039] Please see Figure 5The hopper 20 is equipped with a guide slope 21. The guide slope 21 is inclined so that the material flowing back into the hopper 20 can be guided to the elevator 19 under the action of the guide slope 21 for a new round of lifting and combined weighing.

[0040] Please see Figure 2 The inner part of the outer casing 8 is fixedly connected to a limiting rod 22. The inner part of the rack 11 is slidably connected to the outer circumferential surface of the limiting rod 22 to restrict the threaded tube 10, prevent the threaded tube 10 from rotating with the lead screw 9, and cause the rack 11 to always move laterally, thereby improving the stability of the rack 11's movement.

[0041] This embodiment of an automatic return circulation device for uncombined products uses a trajectory capture sensor 5 installed at the bottom of the weighing hopper 4 to capture the feeding switch action of the weighing hopper 4, thereby monitoring and processing the weighing hopper 4 that has repeatedly fed uncombined materials. By setting a rotatable material distribution plate 7 and a guide channel connected to the hopper 20 at the bottom of the uncombined rejection discharge port 15, the uncombined material can be automatically returned to the elevator 19 for recombining and weighing, improving the accuracy and efficiency of the multi-head scale 2's feeding operation. This solves the problem that the material retained in the weighing hopper 4 affects the accuracy, stability, and efficiency of the multi-head scale 2's feeding operation.

[0042] It should be noted that the front of the outer casing 8 is hinged with a door, and the inside of the door has an observation window.

[0043] The working principle of the above embodiments is as follows:

[0044] During packaging, materials are poured into the hopper 20 and lifted to the top of the multi-head scale 2 by the elevator 19 for loading. The multi-head scale 2 discharges materials through combined weighing. Normally combined materials fall into the distribution plate 7 below, which guides the combined materials to the combined discharge port 14. Then, the materials fall through the discharge hopper 16 below the combined discharge port 14 and then pass through the bag packaging machine 17 to complete the subsequent packaging operation. The trajectory capture sensor 5 can sense the change in the magnetic field of the object when the bottom of the weighing hopper 4 moves and opens, and convert it into an electrical signal and transmit it to the control system and motor 13 of the multi-head scale 2. When the trajectory capture sensor 5 detects that its corresponding weighing hopper 4 has not been opened for a long time, it proves that there is material stuck inside the weighing hopper 4. The weighing scale 2 will temporarily stop normal weighing and unloading operations and open the weighing hopper 4 where materials are retained, allowing the retained materials to fall. Before the materials fall, the motor 13 will start and drive the lead screw 9 to rotate. The lead screw 9 drives the rack 11 to move through the threaded tube 10. The rack 11 drives the rotating shaft 6 and the distribution plate 7 to rotate through the gear 12, causing the bottom of the distribution plate 7 to connect with the uncombined rejection discharge port 15, guiding the fallen retained materials into the uncombined rejection discharge port 15, and then falling back to the hopper 20 through the return channel 18. It will then be lifted and weighed again by the elevator 19. After the retained materials are processed, the motor 13 will drive the lead screw 9 to rotate, causing the distribution plate 7 to rotate. After that, the multi-head scale 2 will start normal weighing and unloading operations.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic return circulation device for unassembled products, comprising a feeding bin (1), characterized in that: A multi-head scale (2) is provided above the feeding box (1). The multi-head scale (2) has storage hoppers (3) arranged at equal intervals on its outer periphery. The multi-head scale (2) has weighing hoppers (4) arranged at equal intervals on its outer periphery. Each weighing hopper (4) has a trajectory capture sensor (5) at its bottom. The feeding box (1) is rotatably connected to a rotating shaft (6). A material distribution plate (7) is fixedly connected to the outer circumference of the rotating shaft (6). The front of the feeding box (1) is fixedly connected to a shell (8), and a lead screw (9) is rotatably connected inside the shell (8). A threaded tube (10) is threadedly connected to the outer circumference of the lead screw (9), and a rack (11) is fixedly connected to the outer circumference of the threaded tube (10). A gear (12) is fixedly sleeved on the outer circumference of the rotating shaft (6), and the gear (12) meshes with the rack (11). A combined feeding port (1) is provided at one end of the bottom of the feeding box (1). 4) The other end of the bottom of the feeding box (1) is provided with an unassembled rejection feeding port (15). Below the assembled feeding port (14) is a bag-feeding packaging machine (17). The bottom of the unassembled rejection feeding port (15) is fixedly connected with a return channel (18). The back of the feeding box (1) is provided with a hoist (19). The bottom of the hoist (19) is provided with a hopper (20). The discharge end of the return channel (18) is connected to the top of the hopper (20).

2. The automatic return circulation device for unassembled products according to claim 1, characterized in that: The material distribution plate (7) is inclined, and its two ends are connected to the combined feeding port (14) and the uncombined rejection feeding port (15), respectively.

3. The automatic return circulation device for unassembled products according to claim 1, characterized in that: The bottom of the combined discharge port (14) is fixedly connected to a discharge hopper (16).

4. The automatic return circulation device for unassembled products according to claim 1, characterized in that: The return channel (18) is inclined, and there is a height difference between the inlet end and the outlet end of the return channel (18).

5. The automatic return circulation device for unassembled products according to claim 1, characterized in that: One end of the lead screw (9) is equipped with a motor (13), which is electrically connected to the trajectory capture sensor (5).

6. The automatic return circulation device for unassembled products according to claim 1, characterized in that: The upper surface of the material distribution plate (7) is provided with a buffer layer (23), which is made of soft material.

7. The automatic return circulation device for unassembled products according to claim 1, characterized in that: The hopper (20) is provided with a guide slope (21) inside, and the guide slope (21) is inclined.

8. The automatic return circulation device for unassembled products according to claim 1, characterized in that: The inner part of the outer shell (8) is fixedly connected to a limiting rod (22), and the inner part of the rack (11) is slidably connected to the outer circumferential surface of the limiting rod (22).

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