A method of metal packaging, a controller and a metal packaging machine

Abstract

The application provides a metal packing method, a controller and a metal packing machine, and relates to the technical field of waste metal processing. The method comprises the following steps: driving a door cover to close a material box; controlling a first compression oil cylinder to push a first compression head to transversely compress material in the direction of the front wall of the material box; controlling a second compression oil cylinder to push a second compression head to longitudinally compress the material between the first compression head and the front wall of the material box; and during the longitudinal compression, the first compression oil cylinder drives the first compression head to retreat for several times, and the first compression head remains stationary in the remaining time. The application can reduce energy loss caused by friction, improve the compression capacity of the metal packing machine, and compress the material more densely.

Description

Technical Field

[0001] This application relates to the field of waste metal processing technology, and in particular to a metal baling method, controller and metal baling machine. Background Technology

[0002] Metal balers are the main equipment for processing scrap steel. The purpose of a baler is to compress a large pile of messy, loose material into a dense bale to meet the steel mill's requirements for bale size for recycling. The main working principle of a metal baler is to use a hydraulic cylinder to drive a pusher head, which then compresses the material to increase its density.

[0003] During the process of compressing materials with the pusher, the materials will squeeze the inner wall of the compression chamber and form frictional resistance between the materials and the inner wall of the compression chamber, which hinders the compression of the materials, reduces the compression capacity of the metal baler, and causes energy waste. Summary of the Invention

[0004] The technical problem to be solved by this application is to provide a metal packing method, controller and metal packing machine in view of the above-mentioned shortcomings of the prior art.

[0005] A metal baling method is applied to a metal baling machine, the metal baling machine comprising a material bin with a material trough, a cover assembly with a door installed on the material bin, a primary compression assembly consisting of a first compression cylinder and a first compression head, and a final compression assembly consisting of a second compression cylinder and a second compression head; the metal baling method includes:

[0006] The drive door closes the hopper;

[0007] Control the first compression cylinder to push the first compression head to compress the material laterally toward the front wall of the hopper;

[0008] Control the second compression cylinder to push the second compression head to longitudinally compress the material located between the first compression head and the front wall of the hopper;

[0009] During the longitudinal compression process, the first compression cylinder is controlled to drive the first compression head to retract several times, while the first compression head remains locked for the rest of the time.

[0010] In one improved technical solution, during the longitudinal compression process, the first compression head is retracted based on the oil pressure in the hydraulic system.

[0011] In an improved technical solution, during the longitudinal compression process, whenever the oil pressure in the hydraulic system reaches a predetermined node value Pi, the first compression cylinder is controlled to drive the first compression head to retract once; wherein, the number of node values ​​Pi is set to one or more.

[0012] In an improved technical solution, the first compression cylinder pushes the first compression head to compress the material. After the first compression head reaches a predetermined position, the first compression cylinder is controlled to drive the first compression head back a predetermined distance, and then the first compression cylinder is locked to keep the first compression head stationary.

[0013] In one improved technical solution, during the longitudinal compression process, the drive door cover is pushed back in the opening direction several times, while the door cover remains locked and stationary for the rest of the time.

[0014] In one improved technical solution, during the longitudinal compression process, the door cover is retracted based on the oil pressure in the hydraulic system.

[0015] In an improved technical solution, during the longitudinal compression process, whenever the oil pressure in the hydraulic system reaches a predetermined node value Pi, the drive door cover is pushed back once in the opening direction; wherein, the number of node values ​​Pi is set to one or more.

[0016] In one improved technical solution, during the lateral compression process, the drive door cover is pushed back in the opening direction several times, while the door cover remains locked and stationary for the rest of the time.

[0017] On the other hand, this application also provides a controller, including:

[0018] Memory is used to store executable computer programs;

[0019] A processor is configured to execute the program stored in the memory to perform the steps of the metal packing method provided above.

[0020] On the other hand, this application also provides a metal baling machine, characterized in that it includes:

[0021] The controllers provided in the above sections;

[0022] A hopper with a trough;

[0023] A cover assembly with a door installed on a hopper;

[0024] A primary compression assembly consisting of a first compression cylinder and a first compression head;

[0025] The final compression assembly consists of a second compression cylinder and a second compression head.

[0026] In this application, after the door is closed, the first compression cylinder pushes the first compression head to perform a lateral primary compression of the material, followed by the second compression cylinder pushing the second compression head to perform a longitudinal final compression of the material. During the final compression, the material is confined between the first compression head and the front wall of the hopper, and is ultimately compressed into a bale by the second compression head. During the longitudinal final compression process, the first compression cylinder drives the first compression head to retract several times. When the first compression head retracts, a gap appears between the first compression head and the material, thereby reducing the impact of frictional resistance between the first compression head and the material on the material compression, reducing energy loss due to friction, and improving the compression capacity of the metal baler, allowing the material to be compressed more densely. Furthermore, the technical solution of this application has a very small impact on cost. Attached Figure Description

[0027] Figure 1 This is one of the flowcharts of the metal packing method in the embodiments of this application.

[0028] Figure 2 This is the second flowchart of the metal packing method in the embodiments of this application.

[0029] Figure 3 This is the third flowchart of the metal packing method in the embodiments of this application.

[0030] Figure 4 This is one of the structural schematic diagrams of the metal baler in the embodiments of this application.

[0031] Figure 5 This is the second schematic diagram of the metal baler in the embodiments of this application.

[0032] Figure 6 This is a schematic block diagram of the controller in an embodiment of this application. Detailed Implementation

[0033] The following are specific embodiments of this application, described in conjunction with the accompanying drawings, to further illustrate the technical solutions of this application. However, this application is not limited to these embodiments. In the following description, specific details such as particular configurations and components are provided merely to aid in a comprehensive understanding of the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0034] It should be noted that, where there is no conflict, the embodiments and features described in this application can be combined with each other.

[0035] In the embodiments of this application, reference is made to Figure 4 and Figure 5The metal baler includes a hopper 10 with a trough 11, a cover assembly 20 with a cover 21 mounted on the hopper 10, a primary compression assembly 30 consisting of a first compression cylinder 31 and a first compression head 32, and a final compression assembly 40 consisting of a second compression cylinder 41 and a second compression head 42. The general working process of the metal baler is as follows: First, the cover 21 is opened, and the material to be compressed is added to the trough 11. After the material is added, the cover 21 is closed, during which the material is pre-compressed. Next, after the cover 21 is closed, the first compression cylinder 31 pushes the first compression head 32 to perform a lateral primary compression of the material, followed by the second compression cylinder 41 pushing the second compression head 42 to perform a longitudinal final compression of the material. During the final compression, the material is confined between the first compression head and the front wall of the hopper 10, and is ultimately compressed into bales by the second compression head. The first compression head is used to limit material deformation and withstand the extrusion force from the material during the final compression process.

[0036] During the final compression process, the material will squeeze the bottom of the hopper 10, the front wall 12 of the hopper 10, the first compression head 32, and the door cover 21, and generate frictional resistance with these parts.

[0037] refer to Figure 1 , Figure 1 This is a flowchart illustrating a metal packing method provided in an exemplary embodiment of this application. Figure 1 As shown, the method includes steps S101 to S103, wherein step S103 includes steps S103a and S103b.

[0038] Step S101: Drive the door cover 21 to close the material box 10.

[0039] After the material is added to the feed trough 11, the drive door 21 is closed, so that the feed trough 11 is closed to form a compression space for compressing the material.

[0040] Step S102: Control the first compression cylinder 31 to push the first compression head 32 to compress the material laterally toward the front wall 12 of the material box 10.

[0041] Specifically, the first compression cylinder 31 pushes the first compression head 32 to move laterally, performing primary compression on the material in the material trough 11. After the primary compression is completed, the material is compressed and pushed to the position of the front wall 12 of the material box 10.

[0042] Step S103a: Control the second compression cylinder 41 to push the second compression head 42 to longitudinally compress the material located between the first compression head 32 and the front wall 12 of the material box 10.

[0043] In step S103b, during the longitudinal compression process, the first compression cylinder 31 is controlled to drive the first compression head 32 to retract several times, while the first compression head 32 remains locked for the rest of the time.

[0044] During the final longitudinal compression process, the material is ultimately compressed into a blob by the second compression head. During the final compression of the material by the second compression head 42, the first compression cylinder 31 drives the first compression head 32 to retract several times. As the first compression head retracts, a gap appears between the first compression head and the material, thereby reducing the frictional resistance between them, reducing frictional loss, and improving the compression effect.

[0045] In one exemplary embodiment, the first compression cylinder 31 pushes the first compression head 32 to compress the material. After the first compression head 32 reaches a predetermined position, the first compression cylinder 31 is controlled to drive the first compression head 32 back a predetermined distance, and then the first compression cylinder 31 is locked to keep the first compression head 32 stationary. When the first compression head 32 retracts, the material will rebound, and the retraction distance of the first compression head 32 can avoid the rebound distance of the material. At this time, when the second compression cylinder 41 drives the second compression head, the first compression head 32 disengages from the material, and there is no friction.

[0046] In one exemplary embodiment, during longitudinal compression, it is determined whether the first compression head 32 retracts based on the oil pressure in the hydraulic system. Here, the oil pressure in the hydraulic system can be measured by a pressure sensor in the hydraulic system.

[0047] Furthermore, during the longitudinal compression process, whenever the hydraulic pressure in the hydraulic system reaches a predetermined node value Pi, the first compression cylinder 31 is controlled to drive the first compression head 32 to retract once; wherein, the number of node values ​​Pi is set to one or more. Specifically, the node values ​​P1, P2, ..., Pi can be set sequentially from small to large. When the hydraulic pressure in the system is detected to reach node value P1, the first compression cylinder 31 is controlled to drive the first compression head 32 to retract for the first time. As the final compression proceeds, when the hydraulic pressure in the system is detected to reach node value P2, the first compression cylinder 31 is controlled to drive the first compression head 32 to retract for the second time, and so on. When the hydraulic pressure in the system is detected to reach node value Pi, the first compression cylinder 31 is controlled to drive the first compression head 32 to retract for the i-th time.

[0048] refer to Figure 2 , Figure 2 This is a flowchart illustrating a metal packing method provided in an exemplary embodiment of this application. Figure 2As shown, the method includes steps S201 to S203, wherein step S203 includes steps S203a, S203b, and S203c.

[0049] Step S201: Drive the door cover 21 to close the material box 10.

[0050] After the material is added to the feed trough 11, the drive door 21 is closed, so that the feed trough 11 is closed to form a compression space for compressing the material.

[0051] Step S202: Control the first compression cylinder 31 to push the first compression head 32 to compress the material laterally toward the front wall 12 of the material box 10.

[0052] Specifically, the first compression cylinder 31 pushes the first compression head 32 to move laterally, performing primary compression on the material in the material trough 11. After the primary compression is completed, the material is compressed and pushed to the position of the front wall 12 of the material box 10.

[0053] Furthermore, it also includes: during the lateral compression process, the drive cover 21 is retracted in the opening direction several times, and the cover 21 is kept in a locked state for the rest of the time, thereby reducing the frictional resistance between the cover and the material, reducing frictional loss, and improving the compression effect.

[0054] Step S203a: Control the second compression cylinder 41 to push the second compression head 42 to longitudinally compress the material located between the first compression head 32 and the front wall 12 of the material box 10.

[0055] In step S203b, during the longitudinal compression process, the first compression cylinder 31 is controlled to drive the first compression head 32 to retract several times, while the first compression head 32 remains locked for the rest of the time.

[0056] In step S203c, during the longitudinal compression process, the drive door cover 21 is pushed back in the opening direction several times, and the door cover 21 is kept in a locked state for the rest of the time.

[0057] During the final longitudinal compression process, the material is ultimately compressed into a blob by the second compression head. During the final compression of the material by the second compression head 42, the first compression cylinder 31 drives the first compression head 32 to retract several times. As the first compression head retracts, a gap appears between the first compression head and the material, thereby reducing the frictional resistance between them, reducing frictional loss, and improving the compression effect.

[0058] During the longitudinal compression process, the drive cover 21 retracts several times in the opening direction, while remaining locked the rest of the time to keep the cover 21 stationary. When the cover 21 retracts, a gap appears between the cover 21 and the material, thereby reducing the frictional resistance between the cover and the material, reducing frictional loss, and improving the compression effect.

[0059] In one exemplary embodiment, the first compression cylinder 31 pushes the first compression head 32 to compress the material. After the first compression head 32 reaches a predetermined position, it drives the door cover 21 to retract a predetermined angle in the opening direction and then locks it. When the door cover 21 retracts, the material will rebound, and the retraction distance of the door cover 21 can avoid the rebound distance of the material. At this time, when the second compression cylinder 41 drives the second compression head to move, the door cover and the material are no longer in contact, and there is no friction.

[0060] In one exemplary embodiment, during longitudinal compression, it is determined whether the cover 21 retracts based on the oil pressure in the hydraulic system. Here, the oil pressure in the hydraulic system can be measured by a pressure sensor in the hydraulic system.

[0061] Furthermore, during the longitudinal compression process, whenever the hydraulic pressure in the hydraulic system reaches a predetermined node value Pi, the drive door 21 retracts once in the opening direction; the number of node values ​​Pi can be set to one or more. Specifically, node values ​​P1, P2, ..., Pi can be set sequentially from smallest to largest. When the hydraulic pressure in the system is detected to reach node value P1, the drive door 21 retracts for the first time. As the final compression proceeds, when the hydraulic pressure in the system is detected to reach node value P2, the drive door 21 retracts for the second time, and so on, until the hydraulic pressure in the system is detected to reach node value Pi, at which point the drive door 21 retracts for the i-th time.

[0062] Furthermore, the cover 21 is rotatably mounted on the hopper 10, and the cover 21 can be retracted by rotating it at an angle in the opening direction.

[0063] refer to Figure 3 , Figure 3 This is a flowchart of a metal packing method provided in an exemplary embodiment of this application. The method consists of several steps, which are described in detail below.

[0064] Step S301: Drive the door cover 21 to close the material box 10.

[0065] Step S302: Control the first compression cylinder 31 to push the first compression head 32 to compress the material laterally toward the front wall 12 of the material box 10.

[0066] In step S303, the first compression cylinder 31 pushes the first compression head 32 to compress the material. After the first compression head 32 reaches the predetermined position, the first compression cylinder 31 is controlled to drive the first compression head 32 back a predetermined distance. Then, the first compression cylinder 31 is locked to keep the first compression head 32 stationary. At the same time, the door cover 21 is driven to retract a predetermined angle in the opening direction and then locked.

[0067] Step S304: Control the second compression cylinder 41 to push the second compression head 42 to start longitudinally compressing the material located between the first compression head 32 and the front wall 12 of the material box 10.

[0068] In step S305, when the oil pressure in the hydraulic system reaches the predetermined node value P1, the first compression cylinder 31 is controlled to drive the first compression head 32 to retract for the first time, and the door cover 21 is driven to retract in the opening direction for the first time.

[0069] Step S306: Control the second compression cylinder 41 to push the second compression head 42 to continue longitudinally compressing the material located between the first compression head 32 and the front wall 12 of the material box 10.

[0070] When the oil pressure in the system reaches node value P1, the first compression head 32 and the door cover 21 simultaneously retract for the first time. After the first retraction, the second compression head 42 continues the final compression process.

[0071] Thus, whenever the hydraulic pressure in the hydraulic system reaches a certain threshold, the first compression head 32 and the door cover 21 simultaneously retract once, until the hydraulic pressure in the hydraulic system reaches the predetermined threshold Pi, at which point the final retraction action is performed.

[0072] In step S307, when the oil pressure in the hydraulic system reaches the predetermined node value Pi, the first compression cylinder 31 is controlled to drive the first compression head 32 to retract for the i-th time, and the door cover 21 is driven to retract for the i-th time in the opening direction.

[0073] In step S308, the second compression cylinder 41 is controlled to push the second compression head 42 to continue longitudinally compressing the material located between the first compression head 32 and the front wall 12 of the material box 10.

[0074] For explanations of steps S301 to S308, please refer to [link / reference]. Figure 1 and Figure 2 The corresponding implementation methods will not be described in detail here.

[0075] See Figure 6 , Figure 6This is a schematic block diagram of a controller provided in an exemplary embodiment of this application. The controller 60 includes a memory 62 and a processor 61. The memory 62 stores an executable computer program. The processor 61 executes the program stored in the memory to perform the steps of the metal packing method provided above.

[0076] Furthermore, this application embodiment also provides a metal baling machine, including: the controller, material bin 10, door cover assembly 20, primary compression assembly 30, and final compression assembly 40 provided above. The material bin 10 is provided with a material trough 11. The door cover assembly 20 is mounted on the material bin 10 and has a door cover 21. The primary compression assembly 30 consists of a first compression cylinder 31 and a first compression head 32. The final compression assembly 40 consists of a second compression cylinder 41 and a second compression head 42.

[0077] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0078] It should be noted that the steps of the corresponding methods are not necessarily performed in the order shown and described in this specification in other embodiments. In some other embodiments, the methods may include more or fewer steps than described in this specification. Furthermore, a single step described in this specification may be broken down into multiple steps in other embodiments; and multiple steps described in this specification may be combined into a single step in other embodiments.

[0079] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0080] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0081] The specific embodiments described herein are merely illustrative examples of the spirit of this application. Those skilled in the art to which this application pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this application or exceeding the scope defined by the appended claims.

Claims

1. A method of metal packaging, characterized by, The application is applied to a metal packing machine, which comprises a material box (10) with a material tank (11), a door cover assembly (20) with a door cover (21) installed on the material box (10), a primary compression assembly (30) composed of a first compression oil cylinder (31) and a first compression head (32), and a final compression assembly (40) composed of a second compression oil cylinder (41) and a second compression head (42); the metal packing method comprises: driving the door cover (21) to close the material box (10); controlling the first compression oil cylinder (31) to push the first compression head (32) to transversely compress the material towards the front wall (12) of the material box (10); after the first compression head (32) reaches a predetermined position, controlling the first compression oil cylinder (31) to drive the first compression head (32) to retreat, and the distance of the retreat of the first compression head (32) avoids the rebound distance of the material; controlling the second compression oil cylinder (41) to push the second compression head (42) to longitudinally compress the material between the first compression head (32) and the front wall (12) of the material box (10); during the longitudinal compression, controlling the first compression oil cylinder (31) to drive the first compression head (32) to retreat for several times, and keeping the first compression head (32) still during the rest time; during the longitudinal compression, determining whether the first compression head (32) retreats according to the oil pressure in the hydraulic system; during the longitudinal compression, controlling the first compression oil cylinder (31) to drive the first compression head (32) to retreat once every time when the oil pressure in the hydraulic system reaches a predetermined node value Pi; wherein the number of the node values Pi is set to be one or more.

2. The metal packing method according to claim 1, characterized by, after the first compression oil cylinder (31) pushes the first compression head (32) to compress the material, and the first compression head (32) reaches a predetermined position, controlling the first compression oil cylinder (31) to drive the first compression head (32) to retreat by a predetermined distance, and then locking the first compression oil cylinder (31) to keep the first compression head (32) still.

3. The metal packing method according to any one of claims 1-2, characterized in that, during the longitudinal compression, driving the door cover (21) to retreat towards the opening direction for several times, and keeping the door cover (21) still during the rest time.

4. The metal packing method according to claim 3, characterized by, during the longitudinal compression, determining whether the door cover (21) retreats according to the oil pressure in the hydraulic system.

5. The metal packing method according to claim 4, characterized by, during the longitudinal compression, driving the door cover (21) to retreat towards the opening direction once every time when the oil pressure in the hydraulic system reaches a predetermined node value Pi; wherein the number of the node values Pi is set to be one or more.

6. The metal packing method according to claim 3, characterized by, during the transverse compression, driving the door cover (21) to retreat towards the opening direction for several times, and keeping the door cover (21) still during the rest time.

7. A controller characterized by comprising: comprise: a memory for storing an executable computer program; a processor for executing the program stored in the memory to execute the steps of the metal packing method according to any one of claims 1-6.

8. A metal packer characterized by, comprise: the controller according to claim 7; a material box (10) with a material tank (11); a door cover assembly (20) with a door cover (21) installed on the material box (10); a primary compression assembly (30) composed of a first compression oil cylinder (31) and a first compression head (32); The ultimate compression assembly (40) is composed of a second compression oil cylinder (41) and a second compression head (42).

Images