阅读说明：本技术 一种打捆控制方法、装置及打捆机 (Bundling control method and device and bundling machine ) 是由 朱威冲 孙祥鸣 贺龙钊 刘锦武 冼伟杰 郝婷 张勤 尹旭男 于 2021-08-10 设计创作，主要内容包括：本发明的实施例提供了一种打捆控制方法、装置及打捆机,涉及农业机械技术领域。打捆控制方法包括响应启动指令,控制比例阀的开启；获取活塞机构在压紧物料时的物料压力值；判断物料压力值是否大于或等于第一预设压力值；若物料压力值大于或等于第一预设压力值,则控制比例阀的开度减小。在物料压力值大于或等于第一预设压力值的条件下,说明当前的物料压力值相对较大,则需要控制比例阀的开度变小,从而减少物料压力值。由于采用液压的方式驱动活塞机构,因此存在一定的滞后性,使物料压力值能够平稳减小,使物料的受力更为缓和,基本没有载荷突变的情况,从而提高了物料的压紧效果。(The embodiment of the invention provides a bundling control method and device and a bundling machine, and relates to the technical field of agricultural machinery. The bundling control method comprises the steps of responding to a starting instruction and controlling the opening of a proportional valve; acquiring a material pressure value of the piston mechanism when the piston mechanism compresses the material; judging whether the material pressure value is greater than or equal to a first preset pressure value or not; and if the material pressure value is greater than or equal to the first preset pressure value, controlling the opening of the proportional valve to be reduced. Under the condition that the material pressure value is greater than or equal to the first preset pressure value, the current material pressure value is relatively large, and the opening degree of the proportional valve needs to be controlled to be reduced, so that the material pressure value is reduced. Because the piston mechanism is driven in a hydraulic mode, certain hysteresis exists, the pressure value of the material can be stably reduced, the stress of the material is more relaxed, and the condition of sudden load change is basically avoided, so that the pressing effect of the material is improved.)

1. A bundling control method is applied to a bundling machine (10), and is characterized in that the bundling machine (10) comprises a piston mechanism (11), a driver (12), an oil pump (13), a proportional valve (14) and a driving oil cylinder (15), wherein the driver (12) is connected with the oil pump (13) and used for driving the oil pump (13) to rotate, the oil pump (13) is connected with the driving oil cylinder (15) through the proportional valve (14), the driving oil cylinder (15) is connected with the piston mechanism (11), and the piston mechanism (11) is used for compressing materials; the bundling control method comprises the following steps:

controlling the opening of the proportional valve (14) in response to an activation command;

acquiring a material pressure value of the piston mechanism (11) when the material is compacted;

judging whether the material pressure value is greater than or equal to a first preset pressure value or not;

and if the material pressure value is greater than or equal to the first preset pressure value, controlling the opening degree of the proportional valve (14) to be reduced.

2. The baling control method according to claim 1, wherein after the step of controlling the opening degree of the proportional valve (14) to decrease if the material pressure value is greater than or equal to the first preset pressure value, the baling control method further comprises:

judging whether the material pressure value is smaller than a second preset pressure value or not;

and if the material pressure value is smaller than the second preset pressure value, controlling the opening degree of the proportional valve (14) to increase at a first preset speed, wherein the second preset pressure value is smaller than or equal to the first preset pressure value.

3. The bundling control method according to claim 2, further comprising:

and if the material pressure value is greater than or equal to the second preset pressure value, continuing to execute the step of controlling the opening degree of the proportional valve (14) to be reduced.

4. The bundling control method according to claim 1, further comprising:

and if the material pressure value is smaller than the first preset pressure value, continuing to execute the step of controlling the opening of the proportional valve (14).

5. A baling control method according to claim 1, characterized in that the step of controlling the opening degree of the proportional valve (14) to decrease comprises:

controlling the opening of the proportional valve (14) to decrease at a second preset speed.

6. The bundling control method according to claim 1, further comprising:

judging whether the piston mechanism (11) is in a return working condition or not;

and if the piston mechanism (11) is in a return working condition, controlling a feeding mechanism of the bundling machine (10) to feed materials to the piston mechanism (11).

7. A baling control method according to claim 6, characterized in that said step of determining whether the piston mechanism (11) is in a return condition comprises:

acquiring a first number of times that the piston mechanism (11) moves to a maximum limit position;

-acquiring a second number of movements of the piston means (11) to a minimum limit position;

and judging whether the piston mechanism (11) is in a return working condition or not according to the first times and the second times.

8. A baling control method according to claim 7, wherein said step of determining whether the piston mechanism (11) is in a return condition based on the first and second times comprises:

calculating the difference between the first times and the second times;

and if the difference value is equal to 0, judging that the piston mechanism (11) is in a return working condition.

9. A bundling control device (20) applied to a bundling machine (10), wherein the bundling machine (10) comprises a piston mechanism (11), a driver (12), an oil pump (13) and a proportional valve (14), the driver (12) is connected with the oil pump (13) for driving the oil pump (13) to rotate, the oil pump (13) is connected with the piston mechanism (11) through the proportional valve (14), and the piston mechanism (11) is used for compressing materials; the bundling control device (20) comprises:

a response module (21) for controlling the opening of the proportional valve (14) in response to an activation command;

the acquisition module (22) is used for acquiring a material pressure value of the piston mechanism (11) when the material is compacted;

the judging module (23) is used for judging whether the material pressure value is greater than or equal to a first preset pressure value or not;

and the control module (24) is used for controlling the opening degree of the proportional valve (14) to be reduced if the material pressure value is greater than or equal to the first preset pressure value.

10. A baler (10) characterised by comprising a memory (17) and a processor (18), the memory (17) being for storing computer instructions, the processor (18) being for executing the computer instructions on the memory (17) to implement the baling control method according to any one of claims 1-8.

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a bundling control method and device and a bundling machine.

Background

The bundling machine is mainly used for compacting and bundling the materials scattered on the place, such as hay, and the like into a special-shaped (for example, square or round) straw pile, and the purpose is to facilitate transportation. The piston mechanism is an actuating mechanism of the bundling machine, and the hay is compacted and compacted through continuous reciprocating hammering to form a hay pile. The conventional bundling machine on the market mainly adopts a mechanical transmission mode to drive the piston mechanism to move, and adopts the mechanical transmission mode to drive the piston mechanism to reciprocate, so that the transmission force is relatively large, and in the process of driving the piston mechanism to reciprocate, the piston mechanism is easy to compress hay to generate an abrupt pressing force, so that the pressing force of the whole bundling machine in the process of compressing the hay is unstable, and the effect of compressing materials such as the hay is not good.

Disclosure of Invention

The invention aims to provide a bundling control method, a bundling control device and a bundling machine.

Embodiments of the invention may be implemented as follows:

in a first aspect, an embodiment of the present invention provides a bundling control method, which is applied to a bundling machine, where the bundling machine includes a piston mechanism, a driver, an oil pump, and a proportional valve, where the driver is connected to the oil pump and is used for driving the oil pump to rotate, the oil pump is connected to the piston mechanism through the proportional valve, and the piston mechanism is used for compressing a material; the bundling control method comprises the following steps:

responding to a starting instruction, and controlling the opening of the proportional valve;

acquiring a material pressure value of the piston mechanism when the piston mechanism compresses the material;

judging whether the material pressure value is greater than or equal to a first preset pressure value or not;

and if the material pressure value is greater than or equal to the first preset pressure value, controlling the opening of the proportional valve to be reduced.

In an optional embodiment of the present invention, after the step of controlling the opening degree of the proportional valve to decrease if the material pressure value is greater than or equal to the first preset pressure value, the bundling control method further includes:

and judging whether the material pressure value is smaller than a second preset pressure value, if so, controlling the opening of the proportional valve to increase at a first preset speed, wherein the second preset pressure value is smaller than or equal to the first preset pressure value.

In an optional embodiment of the present invention, the bundling control method further includes:

and if the material pressure value is greater than or equal to the second preset pressure value, continuing to execute the step of controlling the opening degree of the proportional valve to reduce.

In an optional embodiment of the present invention, the bundling control method further includes:

and if the material pressure value is smaller than the first preset pressure value, continuing to execute the step of controlling the opening of the proportional valve.

In an alternative embodiment of the present invention, the step of controlling the opening degree of the proportional valve to decrease includes:

and controlling the opening degree of the proportional valve to be reduced at a second preset speed.

In an optional embodiment of the present invention, the bundling control method further includes:

judging whether the piston mechanism is in a return working condition or not;

and if the piston mechanism is in the return working condition, controlling a feeding mechanism of the bundling machine to feed materials to the piston mechanism.

In an optional embodiment of the present invention, the step of determining whether the piston mechanism is in a return condition includes:

acquiring a first number of times that the piston mechanism moves to a maximum limit position;

acquiring a second number of times that the piston mechanism moves to the minimum limit position;

and judging whether the piston mechanism is in a return working condition or not according to the first times and the second times.

In an optional embodiment of the present invention, the step of determining whether the piston mechanism is in the return condition according to the first number of times and the second number of times includes:

calculating the difference between the first times and the second times;

and if the difference value is equal to 0, judging that the piston mechanism is in a return working condition.

In a second aspect, an embodiment of the present invention provides a bundling control device, which is applied to a bundling machine, where the bundling machine includes a piston mechanism, a driver, an oil pump, and a proportional valve, where the driver is connected to the oil pump and is used for driving the oil pump to rotate, the oil pump is connected to the piston mechanism through the proportional valve, and the piston mechanism is used for compressing a material; the bundling control device comprises:

the response module is used for responding to a starting instruction and controlling the opening of the proportional valve;

the acquisition module is used for acquiring a material pressure value of the piston mechanism when the piston mechanism compresses the material;

the judging module is used for judging whether the material pressure value is greater than or equal to a first preset pressure value or not;

and the control module is used for controlling the opening degree of the proportional valve to be reduced if the material pressure value is greater than or equal to the first preset pressure value.

In a third aspect, embodiments of the present invention provide a baler comprising a memory for storing computer instructions and a processor for executing the computer instructions on the memory to implement the baling control method provided in the first aspect.

The embodiment of the invention has the following beneficial effects: the bundling control method comprises the steps of responding to a starting instruction and controlling the opening of a proportional valve; acquiring a material pressure value of the piston mechanism when the piston mechanism compresses the material; judging whether the material pressure value is greater than or equal to a first preset pressure value or not; and if the material pressure value is greater than or equal to the first preset pressure value, controlling the opening of the proportional valve to be reduced.

Under the condition that the material pressure value is greater than or equal to the first preset pressure value, the current material pressure value is relatively large, and the opening degree of the proportional valve needs to be controlled to be reduced, so that the material pressure value is reduced. Because the piston mechanism is driven in a hydraulic mode, certain hysteresis exists, the pressure value of the material can be stably reduced, the stress of the material is more relaxed, and the condition of sudden load change is basically avoided, so that the pressing effect of the material is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a baler provided by an embodiment of the invention.

Fig. 2 is a flowchart of steps S100 to S600 of a bundling control method according to an embodiment of the present invention.

Fig. 3 is a flowchart of steps S700-S800 of a bundling control method according to an embodiment of the present invention.

Fig. 4 is a flowchart of the substeps of step S700 of the bundling control method according to the embodiment of the present invention.

Fig. 5 is a flowchart of the substeps of step S730 of the bundling control method according to the embodiment of the present invention.

Fig. 6 is a block diagram of a bundling control device according to an embodiment of the present invention.

Fig. 7 is a block diagram of a part of the bundling machine according to the embodiment of the present invention.

Icon: 10-a bundler; 11-a piston mechanism; 12-a driver; 13-an oil pump; 14-a proportional valve; 15-driving the oil cylinder; 17-a memory; 18-a processor; 20-a baling control device; 21-a response module; 22-an acquisition module; 23-a judgment module; 24-control module.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

Examples

Referring to fig. 1, the embodiment of the present invention provides a baling control method and apparatus for a baling machine 10, wherein the baling control method and apparatus provided in this embodiment employs a hydraulic manner to control a piston mechanism 11, so as to stably control a pressing force of the piston mechanism 11 on materials such as hay, thereby improving a pressing effect of the baling machine 10 on the materials such as hay.

The baler 10 is mainly used for compacting and baling the scattered hay into a pile of a specific shape (e.g., square or round) for easy transportation. The piston mechanism 11 is an actuating mechanism of the baler 10, and the hay is compacted and compacted by continuous reciprocating hammering to form a hay pile. The conventional bundling machine 10 on the market mainly adopts a mechanical transmission mode to drive the piston mechanism 11 to move, and adopts a mechanical transmission mode to drive the piston mechanism 11 to reciprocate, so that the transmission force is relatively large, and in the process of driving the piston mechanism 11 to reciprocate, the piston mechanism 11 is easy to compress hay to generate an abrupt pressing force, so that the pressing force of the whole bundling machine 10 in the process of compressing hay is unstable, and the effect of compressing materials such as hay is not good. The bundling control method and the bundling control device provided by the embodiment of the invention can improve the problems, the bundling machine 10 adopts a hydraulic mode to control the piston mechanism 11, and the pressing force of the piston mechanism 11 on the materials such as hay and the like can be stably controlled, so that the pressing effect of the bundling machine 10 on the materials such as hay and the like is improved.

In this embodiment, the bundling machine 10 includes a piston mechanism 11, a driver 12, an oil pump 13, a proportional valve 14, and a driving cylinder 15, where the driver 12 is connected to the oil pump 13 for driving the oil pump 13 to rotate, the oil pump 13 is connected to the driving cylinder 15 through the proportional valve 14, the driving cylinder 15 is connected to the piston mechanism 11, and the piston mechanism 11 is used for compressing the material.

The driver 12 is a driving motor, the driver 12 is used for driving the oil pump 13 to start, so that the driving oil cylinder 15 is controlled to rotate, the rotating driving oil cylinder 15 drives the piston mechanism 11 to reciprocate, and the compaction of materials such as hay is realized.

The process of the movement of the piston mechanism 11 is roughly divided into two processes, one is a return working condition, and the other is a compression working condition. The compression condition refers to a process in which the piston mechanism 11 moves from the minimum limit position to the maximum limit position. The return condition refers to a process of the piston mechanism 11 moving from the maximum limit position to the minimum limit position. The piston means 11 is reciprocated between a minimum limit position and a maximum limit position. Under the condition that the baler 10 responds to the start command, the piston mechanism 11 gradually moves from the lowest limit position to the highest limit position. When the piston mechanism 11 moves to the maximum limit position, the piston mechanism moves in the reverse direction, and when the piston mechanism moves to the minimum limit position, the piston mechanism moves in the reverse direction again, and the movement is repeated. In other words, the compression condition is a process of continuously compressing the material, and the return condition is a process of gradually separating from the material.

Referring to fig. 2, the bundling control method includes the following steps:

and step S100, responding to the starting instruction, and controlling the proportional valve 14 to be opened.

In the embodiment, the proportional valve 14 is arranged between the oil pump 13 and the driving oil cylinder 15, and the opening degree of the proportional valve 14 can be adjusted to adjust the oil inlet speed of the driving oil cylinder 15, and further adjust the pressing force of the piston mechanism 11 on the material.

The start command may be triggered by a user or automatically by the baler 10.

After the baler 10 is started, the proportional valve 14 is controlled to open at a first preset speed. The proportional valve 14 is uniformly increased in the opening process, so that the material pressure value can be increased at a constant speed as far as possible, the sudden change of the material pressure value is reduced, and the stability of the material pressure value is improved.

Step S200, a material pressure value of the piston mechanism 11 when the material is compressed is obtained.

In this embodiment, the material pressure value refers to a pressure value applied to the material by the piston mechanism 11 in the process of pressing the material.

It is easy to understand that, in the process of applying pressure to the material by the piston mechanism 11, the material will apply the same reaction force to the piston mechanism 11, and the pressure value of the material can be detected by detecting the force applied to the piston mechanism 11.

Generally, an elastic part is arranged on one side of the piston mechanism 11 for pressing the material, and the reaction force of the material on the piston mechanism 11 can be calculated by detecting the deformation quantity of the elastic part, so that the pressure value of the material applied to the material by the piston mechanism 11 can be calculated.

Step S300, judging whether the material pressure value is greater than or equal to a first preset pressure value.

The first preset pressure value may be preset by a user, or may be preset after the bundling machine 10 leaves a factory. When the material pressure value is greater than the first preset pressure value, it indicates that the current material pressure value is relatively large, and if the material pressure value is continuously increased, material loss may be caused, or the piston mechanism 11 may be damaged.

In the present embodiment, the first predetermined pressure value is approximately 185 Kn.

And S400, if the material pressure value is greater than or equal to a first preset pressure value, controlling the opening of the proportional valve 14 to be reduced.

Under the condition that the material pressure value is greater than or equal to the first preset pressure value, the opening degree of the proportional valve 14 needs to be controlled to be reduced if the current material pressure value is relatively large, so that the material pressure value is reduced. Because the piston mechanism 11 is driven in a hydraulic mode, certain hysteresis exists, the pressure value of the material can be stably reduced, the stress of the material is more moderate, and the condition of sudden load change is basically avoided, so that the material compressing effect is improved.

In the present embodiment, in order to improve the smooth transition of the material pressure value, the opening degree of the proportional valve 14 is controlled to be reduced at the second preset speed.

Also, the second preset speed is preset.

And if the material pressure value is smaller than the first preset pressure value, continuing to execute the step of controlling the opening of the proportional valve 14.

And S500, judging whether the material pressure value is smaller than a second preset pressure value. And the second preset pressure value is less than or equal to the first preset pressure value.

In the present embodiment, step S500 is performed after step S300, that is, after the material pressure value has reached the first preset pressure value, and during the gradual reduction process, it is determined whether the material pressure value is smaller than the second preset pressure value.

Similarly, if the material pressure value is too small, it indicates that the pressing force on the material is too small, and the material may not be pressed due to the too small material pressure value, so as to reduce the working effect of the bundling machine 10, and therefore, in the process of gradually reducing the opening degree of the proportional valve 14, it is necessary to further determine whether the material pressure value is smaller than a second preset pressure value, so as to avoid the material pressure value being too small.

Since there is some hysteresis in using the hydraulic system to control the movement of the piston means 11, in this embodiment the second predetermined pressure value is equal to the first predetermined pressure value, which is approximately 185 Kn.

Step S600, if the material pressure value is smaller than the second preset pressure value, the opening degree of the proportional valve 14 is controlled to increase at the first preset speed.

Similarly, in the process that the opening degree of the proportional valve 14 is decreased at the second preset speed, if the material pressure value is smaller than the second preset pressure value, which indicates that the current material pressure value is too small, and the material pressure value needs to be correspondingly increased, the opening degree of the proportional valve 14 is controlled to be increased at the first preset speed.

And if the material pressure value is greater than or equal to the second preset pressure value, continuing to execute the step of controlling the opening of the proportional valve 14 to reduce.

It is easily understood that, in the present embodiment, the first preset pressure value is used as the critical value for judgment in the process that the opening degree of the proportional valve 14 is increased at the first preset speed. When the opening degree of the proportional valve 14 is reduced at the second preset speed, the second preset pressure value is used as the critical value for judgment. In other words, in the process of gradually increasing the opening degree of the proportional valve 14 at the first preset speed, if the material pressure value is greater than or equal to the first preset pressure value, the opening degree of the proportional valve 14 is controlled to gradually decrease at the second preset speed, and in the process of decreasing, if the material pressure value is less than the second preset pressure value, the opening degree of the proportional valve 14 is controlled to gradually increase at the first preset speed, and the control is performed in a reciprocating manner.

Referring to fig. 3, in step S700, it is determined whether the piston mechanism 11 is in the return condition.

In the present embodiment, the return condition refers to a process in which the piston mechanism 11 moves from the maximum limit position to the minimum limit position, that is, a process in which the piston mechanism is released from the compaction of the material.

Referring to fig. 4, step S700 may include step S710, step S720 and step S730.

In step S710, a first number of times the piston mechanism 11 moves to the maximum limit position is acquired.

In this embodiment, a counter may be provided at the maximum limit position, counting when the piston mechanism 11 moves to the maximum limit position, and incrementing the first count by 1 once at the maximum limit position.

In step S720, the second number of times the piston mechanism 11 moves to the minimum limit position is acquired.

Likewise, a counter may be provided at the minimum limit position, counting when the piston means 11 moves to the minimum limit position, and incrementing the first number by 1 once at the minimum limit position.

Step S730, determine whether the piston mechanism 11 is in the return condition according to the first number and the second number.

In general, in the initial state, the piston mechanism 11 is at the minimum limit position, that is, in the initial state, the first number is 0 and the second number is 1. The process of the movement of the piston means 11 from the minimum limit position to the minimum limit position is a compression regime. The first number is 1 after the piston mechanism 11 has moved to the maximum limit position. The piston means 11 then moves from the maximum limit position to the minimum limit position, i.e. the return operating condition. Therefore, whether the piston mechanism 11 is in the return working condition can be judged through the first times and the second times.

Referring to fig. 5, step S730 may include step S732 and step S734.

In step S732, a difference between the first frequency and the second frequency is calculated.

In the present embodiment, the second order is 1 in the initial condition. Under the compression working condition, the second number of times is always greater than the first number of times by 1, under the return working condition, the second number of times is equal to the first number of times, and then the current piston mechanism 11 can be judged to be in the return working condition or the compression working condition through the difference between the first number of times and the second number of times.

In step S734, if the difference is equal to 0, it is determined that the piston mechanism 11 is in the return condition.

If the difference is equal to 0, it indicates that the piston mechanism 11 is in the process of moving from the maximum limit position to the minimum limit position at this time, and indicates that the piston mechanism 11 is in the return working condition. If the difference is equal to 1, it indicates that the piston mechanism 11 is in the process of moving from the minimum limit position to the maximum limit position at this time, and indicates that the piston mechanism 11 is in the compression condition.

Referring to fig. 3, in step S800, if the piston mechanism 11 is in the return condition, the feeding mechanism of the baler 10 is controlled to feed the material to the piston mechanism 11.

In this embodiment, if the piston mechanism 11 is in the return operating condition, it indicates that the piston mechanism 11 is gradually separating from the material, and at this time, the feeding mechanism may be controlled to feed the material to the piston mechanism 11, so that the piston mechanism 11 may compress the material under the compression operating condition.

The working principle of the bundling control method provided by the embodiment is as follows: in this embodiment, after responding to the start instruction, the opening degree of the proportional valve 14 is controlled to be opened at a first preset speed, the material pressure value is obtained, the opening degree of the proportional valve 14 is controlled to be decreased at a second preset speed under the condition that the material pressure value is greater than or equal to the first preset pressure value, and in the decreasing process, if the material pressure value is less than the second preset pressure value, the opening degree of the proportional valve 14 is controlled to continue to be increased at the first preset speed.

In summary, the baling control method provided in this embodiment employs a hydraulic manner to control the piston mechanism 11, so as to stably control the pressing force of the piston mechanism 11 on the materials such as hay, thereby improving the effect of the baler 10 on pressing the materials such as hay. Because the piston mechanism 11 is driven in a hydraulic mode, certain hysteresis exists, the pressure value of the material can be stably reduced, the stress of the material is more moderate, and the condition of sudden load change is basically avoided, so that the material compressing effect is improved.

Referring to fig. 6, an embodiment of the present invention further provides a bundling control device 20, where the bundling control device 20 includes:

and the response module 21 is used for responding to the starting instruction and controlling the opening of the proportional valve 14.

Step S100 of the bundling control method provided by the embodiment of the present invention may be executed by the response module 21.

And the obtaining module 22 is used for obtaining the material pressure value of the piston mechanism 11 when the material is compressed.

Step S200 of the bundling control method provided by the embodiment of the present invention may be executed by the obtaining module 22.

And the judging module 23 is configured to judge whether the material pressure value is greater than or equal to a first preset pressure value.

Step S300 of the bundling control method provided by the embodiment of the present invention may be executed by the determining module 23.

And the control module 24 is used for controlling the opening degree of the proportional valve 14 to be reduced if the material pressure value is greater than or equal to a first preset pressure value.

Steps S400-S800 of the bundling control method provided by the embodiment of the invention may be executed by the control module 24.

Referring to fig. 7, in the embodiment of the present invention, the baler 10 further includes a body, a processor 18, a memory 17, an external interface, and a baling control device 20, wherein the memory 17 and the processor 18 are mounted on the body.

The elements of the memory 17 and the processor 18 are electrically connected to each other, directly or indirectly, to enable the transfer or interaction of data. For example, the components may be electrically connected to each other via one or more communication buses or signal lines. The bundling control means 20 comprises at least one software function module which may be stored in the memory 17 in the form of software or firmware (firmware) or be fixed in the Operating System (OS) of the server. The processor 18 is used for executing executable modules stored in the memory 17, such as software functional modules and computer programs included in the bundling control device 20.

The Memory 17 may be, but is not limited to, a Random Access Memory 17 (RAM), a Read Only Memory 17 (ROM), a Programmable Read Only Memory 17 (PROM), an Erasable Read Only Memory 17 (EPROM), an electrically Erasable Read Only Memory 17 (EEPROM), and the like. The memory 17 is used for storing a program and voice data, and the processor 18 executes the program after receiving an execution instruction.

The processor 18 may be an integrated circuit chip having signal processing capabilities. The Processor 18 may be a general-purpose Processor 18, and includes a Central Processing Unit 18 (CPU), a Network Processor 18 (NP), and the like; but may also be a digital signal processor 18(DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. The general purpose processor 18 may be a microprocessor 18 or the processor 18 may be any conventional processor 18 or the like.

The processor 18 couples various input/output devices to the processor 18 as well as to the memory 17. In some embodiments, processor 18 and memory 17 may be implemented in a single chip. In other examples, they may be implemented separately from the individual chips.

The peripheral interface couples various input/output devices to the processor 18 as well as to the memory 17. In some embodiments, the peripheral interface, processor 18 and memory 17 may be implemented in a single chip. In other examples, they may be implemented separately from the individual chips.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.