Control system for removing wrapping paper

Abstract

The utility model belongs to the technical field of pulp unpacking control in viscose fiber production, and discloses a control system for removing a wrapping paper skin, which is arranged in a wrapping paper skin removing device of a pulp bag and comprises a DCS (Distributed Control System) controller, a swing arm control unit, a lifting arm control unit, a clamping control unit and a conveying control unit, the swing arm control unit is connected with the DCS controller, and the swing arm control unit is also connected with the swing arm mechanism; the lifting arm control unit is connected with the DCS controller, and the lifting arm control unit is also connected with the lifting arm mechanism; the clamping control unit is connected with the DCS controller, and the clamping control unit is further connected with the clamping mechanism; the conveying control unit is connected with the DCS controller and further connected with the conveying belt. Through the arrangement of each control unit (specifically the arrangement of each sensor), the movement of the corresponding actuator is accurately controlled, and finally, the orderly, stable and sustainable proceeding of the packaging paper skin removing process is ensured.

Description

Technical Field

[0001] This utility model relates to a control system for removing packaging paper, and more particularly to a control system suitable for removing packaging paper from pulp bales, belonging to the field of pulp unpacking control technology in viscose fiber production. Background Technology

[0002] Viscose fiber is made from high-molecular materials containing natural cellulose, such as wood pulp and cotton pulp, through chemical and mechanical processing. It has the characteristics of soft hand feel, moisture absorption and breathability, drape and flow, bright coloring, antistatic properties and easy textile processing. It is a regenerated cellulose fiber derived from nature but superior to nature, and is one of the important raw materials for the textile industry.

[0003] The main processes involved in viscose fiber production include: impregnating solid pulp to generate alkali cellulose, which is then processed through pressing, crushing, and aging. The cellulose cellulose ester is then transported to a xanthation machine to react with CS2 to generate cellulose xanthate. The cellulose xanthate is then dissolved in an alkaline solution to obtain liquid viscose. The viscose undergoes filtration and degassing processes to eliminate impurities and air bubbles. Finally, a curing process is used to adjust the viscosity and curing degree of the viscose, ultimately producing a viscose dope that meets the performance requirements of subsequent spinning processes.

[0004] The raw material pulp involved is generally stored and transported in pulp bales. Therefore, before use, it is necessary to remove the wire and packaging paper from the pulp bales before feeding them into the impregnation tank. Thus, removing the wire and packaging paper is a necessary process in viscose liquor production. Existing technology CN219187281U discloses a "wire removal device for pulp bales," which can directly and effectively remove the wire from the outside of the pulp bales, providing a reliable prerequisite for feeding the pulp bales into the impregnation process. Furthermore, existing technology CN219215709U discloses a pretreatment system for pulp bales, which includes a paper suction device and a third support, with a second swing arm mounted on the third support. However, the control of removing the packaging paper is almost nonexistent. Summary of the Invention

[0005] To improve the efficiency and automation of pulp liner removal, a liner removal control system is proposed. This system precisely controls the movement of corresponding actuators by configuring each control unit, ultimately ensuring the orderly, stable, and sustainable operation of the liner removal process.

[0006] To achieve the above technical objectives, the following technical solution is proposed:

[0007] A control system for removing packaging paper is installed in a pulp bale removal device. The pulp bale removal system includes a swing arm mechanism, a lifting arm mechanism, a clamping mechanism, and a conveyor belt for placing and conveying pulp bales. The swing arm mechanism is located above the lifting arm mechanism and is connected to the lifting arm mechanism; the clamping mechanism is located below the lifting arm mechanism and is connected to the lifting arm mechanism; the conveyor belt is located below the clamping mechanism's workstation.

[0008] The control system includes a DCS controller, a swing arm control unit, a lifting arm control unit, a clamp control unit, and a conveying control unit. The swing arm control unit is connected to the DCS controller and is also connected to the swing arm mechanism.

[0009] The lifting arm control unit is connected to the DCS controller, and the lifting arm control unit is also connected to the lifting arm mechanism;

[0010] The clamp control unit is connected to the DCS controller, and the clamp control unit is also connected to the clamp mechanism;

[0011] The conveyor control unit is connected to the DCS controller and is also connected to the conveyor belt.

[0012] Furthermore, the swing arm mechanism includes a swing arm and a swing arm cylinder. The swing arm is connected to the lateral swing cylinder, which is connected to the DCS controller. The swing arm control unit includes a swing arm open-end sensor and a swing arm close-end sensor, both located on one side of the swing arm. Both the swing arm open-end sensor and the swing arm close-end sensor are connected to the DCS controller. The movement of the swing arm is monitored by the swing arm open-end sensor and the corresponding information is fed back to the DCS controller. The DCS controller then controls the retraction or extension of the lateral swing cylinder.

[0013] Furthermore, the lifting arm mechanism includes a lifting arm and a lifting cylinder, which are connected. The lifting cylinder is connected to a DCS controller. The lifting arm control unit includes a lifting arm raised to position sensor and a lifting arm lowered to position sensor, both located on one side of the lifting arm. Both sensors are connected to the DCS controller. The lifting arm raised to position sensor and the lifting arm lowered to position sensor monitor the movement of the lifting arm and feed the corresponding information back to the DCS controller. The DCS controller then controls the retraction or extension of the lifting cylinder.

[0014] Furthermore, the clamping mechanism includes a mounting plate, a claw assembly for clamping and packaging cardboard, and a clamping cylinder. The claw assembly is mounted on the mounting plate, and one end of the clamping cylinder is connected to the mounting plate, while the other end is connected to the claw assembly. The clamping cylinder is also connected to a DCS controller. The clamping control unit includes a clamp opening position sensor and a clamp closing position sensor, both located on one side of the claw assembly. Both sensors are connected to the DCS controller. The clamp opening and closing position sensors monitor the movement of the claw assembly and feed the corresponding information back to the DCS controller. The DCS controller then controls the retraction or extension of the clamping cylinder.

[0015] The device comprises at least two claw assemblies, evenly distributed on the mounting plate; in a pair of claw assemblies, the claw assemblies are respectively distributed on opposite sides of the mounting plate; the lower ends of the claw assemblies extend toward the pulp bale, and the claws of the oppositely distributed claw assemblies form a gripper for clamping the packaging paper, and the lower ends of the oppositely distributed claw assemblies form a space for accommodating the packaging paper; the claws of the oppositely distributed claw assemblies are opposite to each other.

[0016] Furthermore, the conveyor belt is connected to a conveyor motor, which is connected to a DCS controller. The conveying control unit includes conveying position sensors, which are distributed on one side of the conveyor belt and connected to the DCS controller. The conveying position sensors monitor the conveying of the conveyor belt and feed the corresponding information back to the DCS controller, which then controls the start or stop of the conveyor motor.

[0017] The positional relationships involved in this technical solution, such as "middle," "above," "below," "one side," "one end," "the other end," "uniformly distributed," and "between," are defined based on the actual usage conditions and are conventional terms in this technical field, as well as conventional terms used by those skilled in the art in actual use.

[0018] In the description of this technical solution, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "equipped with," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technical solution based on the specific circumstances.

[0019] The beneficial technical effects of adopting this technical solution are as follows:

[0020] This invention precisely controls the movement of the corresponding actuators by setting up each control unit (specifically, the arrangement of each sensor), ultimately ensuring the orderly, stable, and sustainable operation of the packaging paperboard process, and providing an effective prerequisite for feeding pulp into the impregnation process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram illustrating the working principle of this utility model;

[0023] Figure 3 This is a schematic diagram of the device for removing packaging cardboard from pulp bales according to this utility model.

[0024] In the diagram, 1. Swing arm mechanism, 11. Swing arm, 12. Swing arm cylinder, 2. Lifting arm mechanism, 21. Lifting arm, 22. Lifting cylinder, 3. Clamping mechanism, 31. Mounting plate, 32. Claw assembly, 33. Clamping cylinder, 4. Conveyor belt, 5. DCS controller, 6. Swing arm control unit, 61. Swing arm open position sensor, 62. Swing arm closed position sensor, 7. Lifting arm control unit, 71. Lifting arm raised position sensor, 72. Lifting arm lowered position sensor, 8. Clamping control unit, 81. Clamping open position sensor, 82. Clamping closed position sensor, 9. Conveying control unit, 91. Conveying position sensor, 10. Conveying motor. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0026] Example 1

[0027] This embodiment provides: a control system for removing packaging paper, such as... Figure 1 , Figure 3 As shown, the pulp bale depackaging device includes a swing arm mechanism 1, a lifting arm mechanism 2, a clamping mechanism 3, and a conveyor belt 4 for placing and conveying pulp bales. The swing arm mechanism 1 is located above the lifting arm mechanism 2, and the lifting arm mechanism 2 is connected to the swing arm mechanism 1. The clamping mechanism 3 is located below the lifting arm mechanism 2, and the lifting arm mechanism 2 is connected to the clamping mechanism 3. The conveyor belt 4 is located below the clamping mechanism 3.

[0028] like Figure 2As shown, the control system includes a DCS controller 5, a swing arm control unit 6, a lifting arm control unit 7, a clamp control unit 8, and a conveying control unit 9. The swing arm control unit 6 is connected to the DCS controller 5 and is also connected to the swing arm mechanism 1.

[0029] The lifting arm control unit 7 is connected to the DCS controller 5, and the lifting arm control unit 7 is also connected to the lifting arm mechanism 2;

[0030] The clamp control unit 8 is connected to the DCS controller 5, and the clamp control unit 8 is also connected to the clamp mechanism 3;

[0031] The conveyor control unit 9 is connected to the DCS controller 5, and the conveyor control unit 9 is also connected to the conveyor belt 4.

[0032] In this process, by setting up each control unit, the monitored information is fed back to the DCS controller 5. Then, the DCS controller 5 controls the movement of the corresponding actuators, ultimately ensuring the orderliness, stability and sustainability of the packaging paperboard process.

[0033] Example 2

[0034] Based on Embodiment 1, this embodiment further defines the swing arm mechanism 1 and the swing arm control unit 6 to further illustrate the technical solution.

[0035] Swing arm mechanism 1: includes a swing arm 11 and a swing arm cylinder 12. The swing arm 11 is connected to the lateral swing cylinder, and the lateral swing cylinder is connected to the DCS controller 5.

[0036] The swing arm control unit 6 includes a swing arm open position sensor 61 and a swing arm close position sensor 62, both of which are located on one side of the swing arm 11; both the swing arm open position sensor 61 and the swing arm close position sensor 62 are connected to the DCS controller 5.

[0037] The movement of the swing arm 11 is monitored by the swing arm open position sensor 61 and the swing arm closed position sensor 62, and the corresponding information is fed back to the DCS controller 5. Then, the DCS controller 5 controls the retraction or extension of the swing cylinder.

[0038] Example 3

[0039] Based on embodiments 1-2, this embodiment further defines the lifting arm mechanism 2 and the lifting arm control unit 7 to further illustrate the technical solution.

[0040] Lifting arm mechanism 2: includes lifting arm 21 and lifting cylinder 22, the lifting arm 21 and lifting cylinder 22 are connected, and the lifting cylinder 22 is connected to DCS controller 5;

[0041] The lifting arm control unit 7 includes a lifting arm raised to position sensor 71 and a lifting arm lowered to position sensor 21, both of which are located on one side of the lifting arm 21; both the lifting arm raised to position sensor 71 and the lifting arm lowered to position sensor 21 are connected to the DCS controller 5.

[0042] The movement of the lifting arm 21 is monitored by the lifting arm raising position sensor 71 and the lifting arm 21 lowering position sensor, and the corresponding information is fed back to the DCS controller 5. Then, the DCS controller 5 controls the retraction or extension of the lifting cylinder 22.

[0043] Example 4

[0044] Based on embodiments 1-3, this embodiment further defines the clamping mechanism 3 and the clamping control unit 8 to further illustrate the technical solution.

[0045] Clamping mechanism 3: includes mounting plate 31, claw assembly 32 for clamping and packaging cardboard, and clamping cylinder 33. The claw assembly 32 is mounted on the mounting plate 31. One end of the clamping cylinder 33 is connected to the mounting plate 31, and the other end is connected to the claw assembly 32. The clamping cylinder 33 is also connected to the DCS controller 5.

[0046] The clamp control unit 8 includes a clamp opening position sensor 81 and a clamp closing position sensor 82, both of which are located on one side of the claw assembly 32; both the clamp opening position sensor 81 and the clamp closing position sensor 82 are connected to the DCS controller 5.

[0047] The movement of the gripper assembly 32 is monitored by the gripper opening position sensor 81 and the gripper closing position sensor 82, and the corresponding information is fed back to the DCS controller 5. Then, the DCS controller 5 controls the retraction or extension of the gripper cylinder 33.

[0048] In addition, there are at least two claw assemblies 32, which are evenly distributed on the mounting plate 31; in the pair of claw assemblies 32, the claw assemblies 32 are respectively distributed on opposite sides of the mounting plate 31; the lower ends of the claw assemblies 32 extend toward the pulp bale, and the claws of the oppositely distributed claw assemblies 32 form a gripper for clamping the packaging paper, and the lower ends of the oppositely distributed claw assemblies 32 form a space for accommodating the packaging paper; the claws of the oppositely distributed claw assemblies 32 are opposite to each other.

[0049] Alternatively, the claw assembly 32 can also adopt other structures, such as a cardboard suction device. As long as it can achieve the gripping / adsorption of packaging cardboard and ensure the smooth movement of packaging cardboard, it is acceptable.

[0050] Example 5

[0051] Based on embodiments 1-4, this embodiment further defines the conveyor belt 4 and the transmission control unit 9 to further illustrate the technical solution.

[0052] A conveyor belt 4 is connected to a conveyor motor 10, which is connected to a DCS controller 5. The conveying control unit 9 includes a conveying position sensor 91, which is located on one side of the conveyor belt 4 and connected to the DCS controller 5. The conveying position sensor 91 monitors the conveying of the conveyor belt 4 and feeds back the corresponding information to the DCS controller 5. The DCS controller 5 then controls the start or stop of the conveyor motor 10.

[0053] The specific installation positions and quantities of the swing arm opening position sensor 61, swing arm closing position sensor 62, lifting arm lifting position sensor 71, lifting arm 21 lowering position sensor, clamp opening position sensor 81, clamp closing position sensor 82, and conveying position sensor 91 can be set or adjusted based on the installation environment, pulp bale size, and clamp packaging cardboard material.

[0054] The work process involved is as follows:

[0055] S1: When in the waiting state, the swing arm cylinder 12, the lifting cylinder 22 and the clamping cylinder 33 retract;

[0056] S2: The conveyor belt 4 transports the pulp bag to the position of the conveying position sensor 91, the conveyor motor 10 stops, and the conveyor belt 4 pauses;

[0057] S3: The lifting cylinder 22 extends, causing the lifting arm 21 to descend to the position of the lifting arm 21 lowering position sensor, which in turn drives the claw assembly 32 to descend.

[0058] S4: The clamping cylinder 33 extends, causing the gripper assembly 32 to clamp and close until the clamp is closed to the position of the sensor 82. The gripper assembly 32 then grabs the packaging paper. At this time, the conveyor motor 10 starts and drives the conveyor belt 4 to run, which will convey the pulp after the packaging paper has been removed.

[0059] S5: The lifting cylinder 22 retracts, the lifting arm 21 rises to the position of the lifting arm lifting position sensor 71, which drives the claw assembly 32 to rise, lifts the clamping mechanism 3, and lifts the packaging paper.

[0060] S6: The swing arm cylinder 12 extends, causing the swing arm 11 to open and reach the position of the swing arm opening position sensor 61, which will transfer the packaging paper to the packaging paper accumulation area.

[0061] S7: The clamping cylinder 33 retracts, causing the claw assembly 32 to open and reach the position of the clamp opening position sensor 81, and then the packaging paper is put down.

[0062] S8: The swing arm cylinder 12 retracts, causing the swing arm 11 to retract and reach the position of the swing arm closed position sensor 62, at which point the swing arm 11 returns to its original position.

Claims

1. A control system for removing packaging cardboard, characterized in that: The pulp bale depackaging paper removal device includes a swing arm mechanism (1), a lifting arm mechanism (2), a clamping mechanism (3), and a conveyor belt (4) for placing and conveying pulp bales. The swing arm mechanism (1) is located above the lifting arm mechanism (2), and the lifting arm mechanism (2) is connected to the swing arm mechanism (1). The clamping mechanism (3) is located below the lifting arm mechanism (2), and the lifting arm mechanism (2) is connected to the clamping mechanism (3). The conveyor belt (4) is located below the clamping mechanism (3). The control system includes a DCS controller (5), a swing arm control unit (6), a lifting arm control unit (7), a clamp control unit (8), and a transmission control unit (9). The swing arm control unit (6) is connected to the DCS controller (5) and is also connected to the swing arm mechanism (1). The lifting arm control unit (7) is connected to the DCS controller (5), and the lifting arm control unit (7) is also connected to the lifting arm mechanism (2); The clamp control unit (8) is connected to the DCS controller (5), and the clamp control unit (8) is also connected to the clamp mechanism (3); The conveyor control unit (9) is connected to the DCS controller (5) and is also connected to the conveyor belt (4).

2. The control system for removing packaging cardboard according to claim 1, characterized in that: The swing arm mechanism (1) includes a swing arm (11) and a swing arm cylinder (12). The swing arm (11) is connected to the swing cylinder, and the swing cylinder is connected to the DCS controller (5). The swing arm control unit (6) includes a swing arm opening position sensor (61) and a swing arm closing position sensor (62). The swing arm opening position sensor (61) and the swing arm closing position sensor (62) are both distributed on one side of the swing arm (11). The swing arm opening position sensor (61) and the swing arm closing position sensor (62) are both connected to the DCS controller (5).

3. The control system for removing packaging cardboard according to claim 1 or 2, characterized in that: The lifting arm mechanism (2) includes a lifting arm (21) and a lifting cylinder (22), which are connected. The lifting cylinder (22) is connected to the DCS controller (5). The lifting arm control unit (7) includes a lifting arm raised to position sensor (71) and a lifting arm lowered to position sensor. The lifting arm raised to position sensor (71) and the lifting arm lowered to position sensor (21) are both located on one side of the lifting arm (21). The lifting arm raised to position sensor (71) and the lifting arm lowered to position sensor (21) are both connected to the DCS controller (5).

4. The control system for removing packaging cardboard according to claim 3, characterized in that: The clamping mechanism (3) includes a mounting plate (31), a claw assembly (32) for clamping and packaging cardboard, and a clamping cylinder (33). The claw assembly (32) is mounted on the mounting plate (31). One end of the clamping cylinder (33) is connected to the mounting plate (31), and the other end is connected to the claw assembly (32). The clamping cylinder (33) is also connected to the DCS controller (5). The clamping control unit (8) includes a clamping open position sensor (81) and a clamping close position sensor (82). Both the clamping open position sensor (81) and the clamping close position sensor (82) are located on one side of the claw assembly (32). Both the clamping open position sensor (81) and the clamping close position sensor (82) are connected to the DCS controller (5).

5. The control system for removing packaging cardboard according to claim 4, characterized in that: The claw assembly (32) consists of at least two claws, which are evenly distributed on the mounting plate (31). In the pair of claw assemblies (32), the claw assemblies (32) are respectively distributed on opposite sides of the mounting plate (31). The lower ends of the claw assemblies (32) extend toward the pulp bale. The claws (32) distributed opposite to each other form a gripper for clamping the packaging paper. The lower ends of the claw assemblies (32) distributed opposite to each other form a space for accommodating the packaging paper. The claws of the claw assemblies (32) distributed opposite to each other.

6. The control system for removing packaging cardboard according to claim 1, characterized in that: The conveyor belt (4) is connected to a conveyor motor (10), and the conveyor motor (10) is connected to a DCS controller (5); the conveying control unit (9) includes a conveying position sensor (91), which is distributed on one side of the conveyor belt (4); the conveying position sensor (91) is connected to the DCS controller (5).

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