Sorting and impurity removing device for ramie fibers

Abstract

The utility model discloses a ramie fiber yarn sorting impurity removal device, including branch cylinder, mechanical gripper, negative pressure manipulator and negative pressure pipe, the inside of branch cylinder is provided with first telescopic boom and second telescopic boom, the bottom of second telescopic boom is connected with mechanical gripper, the end portion of mechanical gripper is connected with negative pressure cavity respectively, the negative pressure cavity is connected with the negative pressure manipulator, and the negative pressure manipulator is connected with the negative pressure pipe. And a plurality of negative pressure suction holes are connected to the negative pressure cavity at equal intervals, a connecting frame is connected to the bottom of the supporting cylinder, and a negative pressure manipulator is installed on one side of the top of the connecting frame. Through the arrangement of the negative pressure manipulator, the negative pressure manipulator is in electric control connection with the external control equipment, when the negative pressure manipulator is started, the negative pressure manipulator is matched with the negative pressure pipe to enable the interior of the negative pressure cavity to be changed into a vacuum negative pressure space, and the negative pressure suction holes are used for carrying out an auxiliary adsorption effect on hard strips and doubled filaments grabbed by the mechanical gripper; the grabbing stability of the mechanical gripper on the hard strips and the doubled filaments is improved, the effect of separating the hard strips and the doubled filaments from other ramie fibers is also improved, and the separation effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ramie fiber impurity removal, in particular to a ramie fiber silk sorting and impurity removal device. Background Art

[0002] After degumming and combing, the raw ramie fiber is formed into ramie fiber that can be used for spinning. Ramie spinning is mainly divided into silk spinning and wool spinning. Among them, the silk spinning process involves the process of picking ramie, which refers to the removal of hard strips, twisted strands and other impurities in the combed ramie fiber to improve the quality of the yarn obtained by subsequent spinning. At present, the process of picking ramie is mostly manual selection of hard strips, twisted strands and other impurities in ramie fiber. That is, workers spread about 15 to 20g of ramie fiber, and under the action of light, identify the hard strips, twisted strands and impurities in the ramie fiber with the naked eye, and then use tweezers to pick out the hard strips. However, the workload of manual picking is large, the work efficiency is low, and the labor demand is large, which restricts the development of ramie textile enterprises.

[0003] A picking mechanism for ramie fibers and a sorting and impurity removing device thereof disclosed in the Chinese utility model patent application disclosure CN212800635U are provided with an elastic pressing mechanism, which is connected to the primary telescopic arm of a manipulator. When picking hard strips or parallel wires, the elastic pressing mechanism presses the ramie fibers around the hard strips or parallel wires, and the grabbing claws grab the hard strips or parallel wires and lift them upward. In the process of lifting upwards, the elastic pressing mechanism provides elastic pressure for the ramie fibers, ensuring that the hard strips or parallel wires can be lifted smoothly, while pressing other ramie fibers to prevent other ramie fibers from being carried away, thereby facilitating the separation of the hard strips or parallel wires from other ramie fibers and improving the separation effect. In the present invention, impurities are sorted by a robot to replace manual sorting, thereby improving the sorting speed. However, the traditional grabbing claw has a single structure, and only performs simple grabbing work on hard strips and wires. Poor grabbing force may lead to grabbing failure or material falling off. Later workers are still required to perform separate sorting operations on them, which reduces work efficiency and needs to be developed urgently. Utility Model Content

[0004] The utility model aims to provide a ramie fiber sorting and impurity removal device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ramie fiber sorting and impurity removal device, comprising a support tube, a mechanical gripper, a negative pressure operating machine and a negative pressure tube, wherein a first telescopic arm and a second telescopic arm are arranged inside the support tube, a mechanical gripper is connected to the bottom of the second telescopic arm, negative pressure chambers are respectively connected to the ends of the mechanical gripper, a plurality of negative pressure suction holes are connected at equal intervals on the negative pressure chamber, a connecting frame is connected to the bottom of the support tube, a negative pressure operating machine is installed on one side of the top of the connecting frame, the negative pressure operating machine is connected to the mechanical gripper through a negative pressure tube, and the two ends of the negative pressure tube are respectively connected to the sides of the two negative pressure chambers.

[0006] Preferably, the bottom of the first telescopic arm is connected to the second telescopic arm, and the first telescopic arm and the second telescopic arm cooperate to use a telescopic drive operation to operate the mechanical gripper to grasp.

[0007] Preferably, a connecting seat plate is connected to the bottom of the connecting frame, and the connecting seat plate plays a limiting role in the movement of the lubrication rod and the elastic limiting clamping plate.

[0008] Preferably, lubrication rods are arranged at equal intervals around the connecting seat plate, and the lubrication rods are used to adapt to the movement of the elastic limiting clamping plate.

[0009] Preferably, a plurality of limiting separation pressure lines are irregularly distributed inside the connecting seat plate, and the plurality of limiting separation pressure lines are staggered. The limiting separation pressure lines play an auxiliary role in separating the hard strips or parallel wires and ramie fibers, making it easier for the mechanical gripper to better contact the hard strips or parallel wires.

[0010] Preferably, the top of the lubricating rod is connected to a limiting block, and the limiting block serves to limit the movement of the lubricating rod.

[0011] Preferably, an elastic limiting pressing plate is connected to the bottom of the lubricating rod, and the elastic limiting pressing plate presses and limits the ramie fibers to prevent the ramie fibers from being carried away together with the hard strips or the parallel yarns.

[0012] Preferably, the outer sleeve of the lubrication rod is provided with a support spring, and the support spring is located between the connecting seat plate and the elastic limiting pressing plate. The elasticity and restorability of the support spring assist the elastic limiting pressing plate to always press the ramie fiber.

[0013] Preferably, the limit block is located on the surface of the top of the connecting seat plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The ramie fiber sorting and impurity removal device is provided with a negative pressure operating machine, the negative pressure operating machine is electrically connected to an external control device, and when the negative pressure operating machine is started, the negative pressure chamber is transformed into a vacuum negative pressure space by cooperating with a negative pressure tube, and the hard strips and parallel wires grasped by a mechanical gripper are assisted in adsorbing by the negative pressure suction hole, thereby improving the grasping stability of the hard strips and parallel wires by the mechanical gripper, and also improving the effect of separating the hard strips and parallel wires from other ramie fiber strands, thereby further improving the separation effect;

[0016] (2) The ramie fiber sorting and impurity removal device has the following steps: when picking hard strips or parallel wires, the elastic limit pressing plate first contacts the hard strips or parallel wires and presses the ramie fiber strands around the hard strips or parallel wires, and the mechanical gripper grabs the hard strips or parallel wires and lifts them upward. During the lifting process, the elastic limit pressing plate cooperates with the supporting spring and the lubricating rod to provide elastic pressure for the ramie fibers, ensuring that the hard strips or parallel wires can be lifted smoothly while pressing other ramie fiber strands to prevent other ramie fiber strands from being carried away, thereby facilitating the separation of the hard strips or parallel wires from other ramie fibers and improving the separation effect;

[0017] (3) The ramie fiber sorting and impurity removal device increases the range of limiting and pressing the ramie fiber by evenly distributing the elastic limiting pressing plates around the bottom of the connecting seat plate. The setting of the limiting separation pressure line can effectively limit the middle part of the hard strips and the parallel wires, making it convenient to separate the hard strips and the parallel wires from the hard strips and the parallel wires, presenting a warped state, which is more convenient for the mechanical gripper to grasp. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 For this utility model Figure 1 The enlarged structural diagram at B in the middle;

[0021] Figure 4 This is a schematic diagram of the structure of the mechanical gripper of the utility model from a top view;

[0022] Figure 5 The utility model is a top view structural schematic diagram of the connection seat plate and ramie fiber yarn in working state.

[0023] In the figure: 1. support tube; 2. first telescopic arm; 3. second telescopic arm; 4. mechanical gripper; 401. negative pressure chamber; 5. connecting frame; 6. negative pressure operating machine; 7. connecting seat plate; 8. lubrication rod; 9. limit block; 10. elastic limit clamping plate; 11. support spring; 12. negative pressure tube; 13. negative pressure suction hole; 14. limit separation pressure line. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides an embodiment: a ramie fiber sorting and impurity removal device, comprising a support tube 1, a mechanical gripper 4, a negative pressure operating machine 6 and a negative pressure tube 12, wherein a first telescopic arm 2 and a second telescopic arm 3 are arranged inside the support tube 1, and a mechanical gripper 4 is connected to the bottom of the second telescopic arm 3. When picking hard strips and parallel wires, the elastic limiting pressing plate 10 first contacts the hard strips or parallel wires and presses the ramie fiber strands around the hard strips or parallel wires, and the mechanical gripper 4 grabs the hard strips or parallel wires and lifts them upwards;

[0026] The ends of the mechanical gripper 4 are respectively connected to negative pressure chambers 401, and multiple negative pressure suction holes 13 are evenly spaced on the negative pressure chambers 401. The bottom of the support tube 1 is connected to a connecting frame 5, and a negative pressure operating machine 6 is installed on one side of the top of the connecting frame 5. The negative pressure operating machine 6 is connected to the mechanical gripper 4 through a negative pressure tube 12, and the two ends of the negative pressure tube 12 are respectively connected to the sides of the two negative pressure chambers 401. The negative pressure operating machine 6 is electrically connected to an external control device. When the negative pressure operating machine 6 is started, it cooperates with the negative pressure tube 12 to turn the negative pressure chamber 401 into a vacuum negative pressure space, and the negative pressure suction holes 13 are used to assist in the adsorption of the hard strips and wires grasped by the mechanical gripper 4, thereby improving the grasping stability of the mechanical gripper 4 on the hard strips and wires.

[0027] The bottom of the first telescopic arm 2 is connected to the second telescopic arm 3 , and the first telescopic arm 2 and the second telescopic arm 3 cooperate to use a telescopic drive operation to operate the mechanical gripper 4 to carry out the grasping work.

[0028] The bottom of the connecting frame 5 is connected with a connecting seat plate 7 , which serves to limit the movement of the lubricating rod 8 and the elastic limiting pressing plate 10 .

[0029] Lubricating rods 8 are arranged at equal intervals around the connecting seat plate 7 , and the lubricating rods 8 are used to adapt to the movement of the elastic limiting pressing plate 10 .

[0030] There are multiple limiting separation pressure lines 14 irregularly distributed inside the connecting seat plate 7, and the multiple limiting separation pressure lines 14 are staggered. The limiting separation pressure lines 14 play an auxiliary separation role for the hard strips or parallel wires and ramie fibers, which is convenient for the mechanical gripper 4 to better contact with the hard strips or parallel wires. The setting of the limiting separation pressure lines 14 can play a good limiting role in the middle part of the hard strips and parallel wires, which is convenient for the hard strips and parallel wires to be separated from the hard strips and parallel wires individually, presenting a warped state, which is more convenient for the gripping work of the mechanical gripper 4.

[0031] The top of the lubricating rod 8 is connected to a limiting block 9 , which limits the movement of the lubricating rod 8 .

[0032] The bottom of the lubricating rod 8 is connected with an elastic limiting pressing plate 10, which presses and limits the ramie fibers to prevent the ramie fibers from being carried away together with the hard strips or the parallel yarns.

[0033] The outer sleeve of the lubricating rod 8 is provided with a supporting spring 11, and the supporting spring 11 is located between the connecting seat plate 7 and the elastic limiting pressing plate 10. The elasticity and recovery of the supporting spring 11 assist the elastic limiting pressing plate 10 to always press the ramie fibers. The elastic limiting pressing plate 10 cooperates with the supporting spring 11 and the lubricating rod 8 to provide elastic pressure for the ramie fibers, ensuring that the hard strips or parallel wires can be lifted smoothly while pressing other ramie fibers to prevent other ramie fibers from being carried away.

[0034] The limiting block 9 is located on the surface of the top of the connecting seat plate 7 .

[0035] When the embodiment of the present application is in use: when picking hard strips and parallel wires, the elastic limiting pressing plate 10 first contacts the hard strips or parallel wires and presses the ramie fiber strands around the hard strips or parallel wires, and the mechanical gripper 4 grabs the hard strips or parallel wires and lifts them upward. In the process of lifting upwards, the elastic limiting pressing plate 10 cooperates with the supporting spring 11 and the lubricating rod 8 to provide elastic pressure for the ramie fiber, ensuring that the hard strips or parallel wires can be lifted smoothly while pressing other ramie fiber strands to prevent other ramie fiber strands from being carried away. The negative pressure operation machine 6 is electrically connected to the external control device. When the negative pressure operation machine 6 is started, it cooperates with the negative pressure tube 12 to turn the negative pressure chamber 401 into a vacuum negative pressure space, and uses the negative pressure suction hole 13 to assist in the adsorption of the hard strips and parallel wires grabbed by the mechanical gripper 4, thereby improving the grabbing stability of the hard strips and parallel wires by the mechanical gripper 4, and also improving the effect of separating the hard strips and parallel wires from other ramie fiber strands.

Claims

1. A ramie fiber sorting and impurity removal device, characterized in that: The invention comprises a support tube (1), a mechanical gripper (4), a negative pressure operating machine (6) and a negative pressure tube (12); a first telescopic arm (2) and a second telescopic arm (3) are arranged inside the support tube (1); the bottom of the second telescopic arm (3) is connected to the mechanical gripper (4); the ends of the mechanical gripper (4) are respectively connected to negative pressure chambers (401); a plurality of negative pressure suction holes (13) are connected to the negative pressure chambers (401) at equal intervals; the bottom of the support tube (1) is connected to a connecting frame (5); a negative pressure operating machine (6) is installed on one side of the top of the connecting frame (5); the negative pressure operating machine (6) is connected to the mechanical gripper (4) via a negative pressure tube (12); and the two ends of the negative pressure tube (12) are respectively connected to the sides of the two negative pressure chambers (401).

2. The ramie fiber sorting and impurity removal device according to claim 1, characterized in that: The bottom of the first telescopic arm (2) is connected to the second telescopic arm (3).

3. The ramie fiber sorting and impurity removal device according to claim 1, characterized in that: The bottom of the connecting frame (5) is connected to a connecting seat plate (7).

4. The ramie fiber sorting and impurity removal device according to claim 3 is characterized in that: Lubricating rods (8) are arranged at equal intervals around the connecting seat plate (7).

5. The ramie fiber sorting and impurity removal device according to claim 4, characterized in that: A plurality of position-limiting separation pressure lines (14) are irregularly distributed inside the connection seat plate (7), and the plurality of position-limiting separation pressure lines (14) are arranged in a staggered manner.

6. The ramie fiber sorting and impurity removal device according to claim 4, characterized in that: The top of the lubricating rod (8) is connected to a limiting block (9).

7. The ramie fiber sorting and impurity removal device according to claim 6, characterized in that: The bottom of the lubricating rod (8) is connected to an elastic limiting pressing plate (10).

8. The ramie fiber sorting and impurity removal device according to claim 7, characterized in that: The outer sleeve of the lubricating rod (8) is provided with a support spring (11), and the support spring (11) is located between the connecting seat plate (7) and the elastic limiting pressing plate (10).

9. The ramie fiber sorting and impurity removal device according to claim 6, characterized in that: The limit block (9) is located on the surface of the top of the connecting seat plate (7).

Images