Electromagnetic needle selector with shockproof structure

Abstract

The utility model discloses an electromagnetic needle selector with a shockproof structure, which relates to the field of electromagnetic needle selectors, and comprises an outer shell, an opening is arranged on the surface of the outer shell, a needle head is arranged in the opening, a fixed shaft is mounted in the outer shell, the needle head is sleeved on the surface of the fixed shaft, a magnetic component is mounted in the outer shell, and the surface of the fixed shaft is sleeved with the magnetic component. A through transverse groove is formed in the surface of the needle head, a groove is formed in the outer shell, a moving block is installed in the groove, and the top of the moving block is arranged to be in an isosceles triangle shape. According to the electromagnetic needle selector with the shockproof structure, the moving block, the needle head and the transverse groove are arranged, in the process that the needle head returns to the center position, the moving block ascends until the moving block is clamped in the transverse groove, and if the transverse groove of the needle head and the moving block are staggered, the transverse groove can be extruded through the bevel edge, so that the needle head returns to the middle position; in the process, the needle head can be prevented from shaking, and the knitting effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of electromagnetic needle selectors, in particular to an electromagnetic needle selector with a shockproof structure. Background Art

[0002] Electromagnetic needle selection is a type of electronic needle selection method for knitting machines. The knitting needle is selected or not selected by controlling whether the electromagnetic device is energized or not. The polarity of the head of the needle selector electromagnet changes accordingly by passing current in different directions through the needle selector electromagnet, or it is used in conjunction with a permanent magnet to achieve the swing of the needle selector head by the attraction and repulsion between the needle selector electromagnet and the permanent magnet. When the needle is not selected, the electromagnetic spiral tube is passed with current in the opposite direction to produce opposite polarity, causing the needle selector head to swing downward and act on the teeth.

[0003] However, since the movement of the needle is controlled by electromagnetics, there is a short period of uncontrollable movement when the positive and negative poles of the current are exchanged, and the current is not completely in an absolutely stable state. The movement of the needle will produce inertia, which may cause the needle to shake. The needle will definitely be in an uncertain middle position, which is prone to knitting errors and needle collisions, affecting the knitting effect. Utility Model Content

[0004] The main purpose of the utility model is to provide an electromagnetic needle selector with a shockproof structure, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an electromagnetic needle selector with a shock-proof structure, comprising an outer shell, an opening is provided on the surface of the outer shell, a needle is provided inside the opening, a fixed axis is installed inside the outer shell, the needle is sleeved on the surface of the fixed axis, a magnetic attraction component is installed inside the outer shell, a transverse groove is provided on the surface of the needle, a groove is provided inside the outer shell, a moving block is installed inside the groove, the top of the moving block is provided in an isosceles triangle shape, and a driving component is installed inside the groove for moving the moving block.

[0006] The driving assembly includes a magnetic plate, which is fixed on the lower surface of the moving block. A first electromagnetic block is fixedly installed inside the groove, and the first electromagnetic block is located directly below the magnetic plate.

[0007] A guide rod is arranged inside the groove, a guide groove is opened on the lower surface of the moving block, and one end of the guide rod abuts against the inside of the guide groove.

[0008] The inner wall of the groove is provided with a limiting groove, and a sliding block is fixedly installed on the side of the moving block, and the sliding block is clamped in the limiting groove.

[0009] The distance from one side of the inner wall of the opening to the nearest side of the needle is the same as the horizontal distance from the top end to the side of the moving block.

[0010] The magnetic attraction assembly includes two second electromagnetic blocks, which are respectively fixed on both sides of the inner wall of the shell body. A magnetic attraction block is fixedly installed on the lower surface of the needle, and the magnetic attraction block is located between the two second electromagnetic blocks.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. In the utility model, by setting a moving block, a needle and a transverse groove, when the needle returns to the center position, the moving block rises until it is stuck in the transverse groove. If the transverse groove of the needle and the position of the moving block are misaligned, the transverse groove can be squeezed by the bevel to make the needle return to the middle position. In this process, the shaking of the needle can be avoided to ensure the knitting effect.

[0013] 2. In the utility model, by setting the first electromagnetic block and the magnetic plate, the movable plate moves up and down through the adsorption and repulsion of the first electromagnetic block and the magnetic plate. Since the top of the movable block is triangular, there is always a moving distance with the inner wall of the horizontal groove during the movement, ensuring that the movement of the needle is not affected, the response speed is fast, and the impact on weaving is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the electromagnetic needle selector with a shockproof structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the fixed axis position structure of the electromagnetic needle selector with a shockproof structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the moving block position of the electromagnetic needle selector with a shockproof structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the magnetic suction block position of the electromagnetic needle selector with a shockproof structure of the utility model;

[0018] Figure 5 The utility model is a schematic diagram of the structure of the slider position of the electromagnetic needle selector with a shockproof structure.

[0019] In the figure: 1. outer shell; 2. opening; 3. needle; 4. fixed axis; 5. transverse groove; 6. groove; 7. moving block; 8. magnetic plate; 9. first electromagnetic block; 10. guide rod; 11. guide groove; 12. limit groove; 13. slider; 14. second electromagnetic block; 15. magnetic suction block. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1-5 As shown, an electromagnetic needle selector with a shockproof structure includes an outer shell 1, an opening 2 is provided on the surface of the outer shell 1, a needle 3 is provided inside the opening 2, the width of the opening 2 is greater than the width of the needle 3, to ensure that the needle 3 has enough space to move, a fixed axis 4 is installed inside the outer shell 1, the needle 3 is sleeved on the surface of the fixed axis 4, the needle 3 rotates around the fixed axis 4, a magnetic attraction component is installed inside the outer shell 1, in order to ensure that the needle 3 can rotate, a transverse groove 5 is provided on the surface of the needle 3, a groove 6 is provided inside the outer shell 1, the width of the groove 6 is the same as the length of the transverse groove 5, a moving block 7 is installed inside the groove 6, the top of the moving block 7 is set to be an isosceles triangle, the top of the moving block 7 is located inside the groove 6, and a driving component is installed inside the groove 6 for moving the moving block 7.

[0022] Start the magnetic suction component to move the needle 3. During the displacement of the needle 3, the top of the moving block 7 is always located inside the transverse groove 5. When the needle 3 is about to stop, immediately move the driving component to move the moving block 7 upward. During the return of the needle 3 to the center position, the moving block 7 rises until the moving block 7 is stuck in the transverse groove 5. If the transverse groove 5 of the needle 3 and the position of the moving block 7 are misaligned, the transverse groove 5 can also be squeezed by the bevel to make the needle 3 return to the middle position. In this process, the shaking of the needle 3 can be avoided to ensure the weaving effect.

[0023] The driving assembly includes two magnetic plates 8, and the number of magnetic plates 8 is symmetrically arranged. The magnetic plates 8 are fixed to the lower surface of the moving block 7. The first electromagnetic blocks 9 are fixedly installed inside the groove 6. The number of the first electromagnetic blocks 9 is the same as the number of the magnetic plates 8. The first electromagnetic blocks 9 are located directly below the magnetic plates 8.

[0024] The first electromagnetic block 9 is energized so that the magnetism directly above it is the same as the magnetism directly below the magnetic plate 8. Through the principle of repulsion between the same and the same, the movable block 7 can be moved upward. If the needle 3 needs to be moved, the direction of the current is changed so that the magnetism directly above the first electromagnetic block 9 is opposite to the magnetism directly below the magnetic plate 8, and the movable block 7 is attracted to the lower position. Since the top of the movable block 7 is triangular, there is always a moving distance between it and the inner wall of the horizontal groove 5 during the movement process, ensuring that it will not affect the movement of the needle 3, and the response speed is fast, reducing the impact on weaving.

[0025] A guide rod 10 is arranged inside the groove 6, and a guide groove 11 is opened on the lower surface of the moving block 7. One end of the guide rod 10 abuts against the inside of the guide groove 11, and the guide rod 10 moves relatively inside the guide groove 11 to prevent the movement of the moving block 7 from being offset.

[0026] The inner wall of the groove 6 is provided with a limiting groove 12, and there are two limiting grooves 12, which are symmetrically arranged on both sides of the groove 6. A slider 13 is fixedly installed on the side of the moving block 7, and the slider 13 is stuck in the limiting groove 12 to prevent the moving block 7 from falling off.

[0027] The distance from one side of the inner wall of the opening 2 to the nearest side of the needle 3 is the same as the horizontal distance from the top of the moving block 7 to the side, ensuring that when the top of the anti-movement block 7 is located inside the transverse groove 5, it will not affect the movement of the needle 3.

[0028] The magnetic attraction component includes two second electromagnetic blocks 14, which are respectively fixed on both sides of the inner wall of the outer shell 1. A magnetic attraction block 15 is fixedly installed on the lower surface of the needle 3. The magnetic attraction block 15 is located between the two second electromagnetic blocks 14. By changing the current of the second electromagnetic block 14, the magnetism of the end is changed, so that the needle 3 swings.

[0029] It should be noted that the utility model is an electromagnetic needle selector with a shockproof structure. When in use, the current of the second electromagnetic block 14 is changed, the magnetism of the end is changed, and the needle 3 swings. During the displacement of the needle 3, the top of the moving block 7 is always located inside the transverse groove 5. When the needle 3 is about to stop, the first electromagnetic block 9 is energized so that the magnetism directly above it is the same as the magnetism directly below the magnetic plate 8. Through the principle of repulsion of the same level, the moving block 7 can be moved upward. The first electromagnetic block 9 is energized so that the magnetism directly above it is the same as the magnetism directly below the magnetic plate 8. Through the principle of repulsion of the same level, the moving block 7 can be moved upward, which can avoid the shaking of the needle 3 and ensure the weaving effect. If the needle 3 needs to be moved, the direction of the current is changed so that the magnetism directly above the first electromagnetic block 9 is opposite to the magnetism directly below the magnetic plate 8, and the moving block 7 is attracted to the lower position. Since the top of the moving block 7 is triangular, there is always a moving distance from the inner wall of the transverse groove 5 during the movement, ensuring that the movement of the needle 3 will not be affected, and the response speed is fast.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An electromagnetic needle selector with a shockproof structure, comprising an outer shell (1), a surface of the outer shell (1) being provided with an opening (2), and a needle (3) being provided inside the opening (2), characterized in that: A fixed shaft (4) is installed inside the outer shell (1), the needle head (3) is sleeved on the surface of the fixed shaft (4), a magnetic attraction component is installed inside the outer shell (1), a through transverse groove (5) is provided on the surface of the needle head (3), a groove (6) is provided inside the outer shell (1), a moving block (7) is installed inside the groove (6), the top of the moving block (7) is arranged in the shape of an isosceles triangle, and a driving component is installed inside the groove (6) for moving the moving block (7).

2. The electromagnetic needle selector with a shockproof structure according to claim 1, characterized in that: The driving assembly comprises a magnetic plate (8), wherein the magnetic plate (8) is fixed to the lower surface of the moving block (7), and a first electromagnetic block (9) is fixedly installed inside the groove (6), wherein the first electromagnetic block (9) is located directly below the magnetic plate (8).

3. The electromagnetic needle selector with a shockproof structure according to claim 2, characterized in that: A guide rod (10) is arranged inside the groove (6), a guide groove (11) is provided on the lower surface of the moving block (7), and one end of the guide rod (10) abuts against the inside of the guide groove (11).

4. The electromagnetic needle selector with a shockproof structure according to claim 3, characterized in that: The inner wall of the groove (6) is provided with a limiting groove (12), and a sliding block (13) is fixedly mounted on the side of the moving block (7), and the sliding block (13) is clamped inside the limiting groove (12).

5. The electromagnetic needle selector with a shockproof structure according to claim 1, characterized in that: The distance from one side of the inner wall of the opening (2) to the nearest side of the needle (3) is the same as the horizontal distance from the top end to the side of the moving block (7).

6. The electromagnetic needle selector with a shockproof structure according to claim 1, characterized in that: The magnetic attraction component comprises two second electromagnetic blocks (14), the two second electromagnetic blocks (14) being fixed to two sides of the inner wall of the outer shell (1), respectively; a magnetic attraction block (15) is fixedly mounted on the lower surface of the needle head (3), and the magnetic attraction block (15) is located between the two second electromagnetic blocks (14).

Images