Electromagnet core for flat knitting machine

Abstract

The utility model discloses an electromagnet core of a flat knitting machine, which comprises a driving part and a driving head, and is characterized in that the driving part is a cylinder, a first boss is arranged at the top of the driving part, a second boss is arranged at the upper part of the first boss, and a cavity penetrating through the first boss and the second boss is formed in the driving part; a plurality of exhaust holes are formed in the inner wall of the cavity of the driving part, one end of the driving head is a working end, the other end of the driving head is a mounting end, the diameter of the mounting end is slightly smaller than that of the working end, a groove is formed between the working end and the mounting end, and the groove is matched with the second boss. The positioning part is used for positioning the driving head in the driving part; the problem that a driving head of an electromagnet iron core of an existing flat knitting machine is disengaged can be effectively solved.

Description

Technical fields:

[0001] This utility model relates to an electromagnet core for a flat knitting machine, and relates to the field of flat knitting machine control technology. Background technology:

[0002] Existing flat knitting machines require electromagnets to switch between different states, such as changing yarn or thread. The electromagnet of a flat knitting machine mainly consists of an iron core, an electromagnetic coil surrounding the iron core, and circuit control components. By energizing the electromagnetic coil, a magnetic field is generated, thereby controlling the movement of the iron core and enabling the switching of certain functions or states of the flat knitting machine.

[0003] The core of the existing flat knitting machine electromagnet has the following structure: Figure 1 As shown, it mainly consists of a drive unit 1' and a drive head 2'. The drive unit 1' is installed inside an electromagnetic coil to achieve reciprocating motion under the drive of the electromagnetic coil. The drive head 2' is installed on the drive unit 1' and acts on the yarn changing component. The installation method is as follows: a cavity is opened in the drive unit 1'. One end of the drive head 2' is the working end, and the other end is the mounting end. The diameter of the mounting end is slightly smaller than the diameter of the working end. During assembly, the mounting end of the drive head 2' needs to be fitted into the cavity of the drive unit 1' and kept tightly fitted.

[0004] However, when the electromagnet is working, the drive head 2' is in a high-speed working state, and the working end of the drive head 2' may be hit or impacted, causing the tight fit between the drive head 2' and the drive part 1' to loosen. In severe cases, the drive head 2' may be dislodged from the cavity of the drive part 1', thus affecting the normal operation of the horizontal knitting machine. Utility Model Content:

[0005] To address the aforementioned problems, the purpose of this utility model is to provide a flat knitting machine solenoid valve core that is easy to install, structurally stable, and not easily detached.

[0006] The technical solution adopted by this utility model is as follows:

[0007] A flat knitting machine electromagnet core includes a drive unit and a drive head. The drive unit is cylindrical, with a first boss at its top and a second boss above the first boss. A cavity penetrating the first and second bosses is formed within the drive unit, with an opening at the second boss. Several vent holes are formed on the inner wall of the cavity. One end of the drive head is a working end, and the other end is a mounting end, with the diameter of the mounting end slightly smaller than the diameter of the working end. A groove is provided between the working end and the mounting end, adapting to the second boss for positioning the drive head within the drive unit.

[0008] Further settings include:

[0009] The first boss is a conical boss, and the second boss can be cylindrical or conical.

[0010] The groove is provided at the connection between the working end and the mounting end.

[0011] The groove is an annular groove.

[0012] The inner diameter of the cavity is slightly larger than the outer diameter of the mounting end of the drive head, so that the mounting end of the drive head can be inserted into the cavity and remain tightly fitted. Preferably, when the drive head is inserted into the cavity of the drive unit, the second boss is exactly located in the groove.

[0013] The second boss has a wedge-shaped structure that cooperates with the groove to achieve the positioning of the drive head in the drive unit.

[0014] The wedge-shaped structure is formed within the groove by externally pressing the second boss in. Preferably, the second boss has a larger diameter than the working end of the drive head. When the drive head is inserted into the drive unit, the outer extension of the second boss protrudes beyond the working end of the drive head. A press is used to press the protruding outer extension of the second boss into the groove, thereby forming a wedge-shaped structure within the groove.

[0015] The exhaust ports are configured as four channels and are evenly distributed along the circumference of the inner wall of the cavity.

[0016] The beneficial effects of this utility model are as follows:

[0017] (1) The valve stem is positioned in the valve body by the cooperation of the second protrusion and the groove, preventing the valve stem from coming out during operation.

[0018] (2) Through the design of the exhaust groove, there will be no excess gas in the valve body during assembly and operation, thus ensuring a tight fit between the valve body and the valve stem.

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached image description:

[0020] Figure 1 This is a schematic diagram of the structure of the solenoid valve core of an existing flat knitting machine.

[0021] Figure 2 This is a schematic diagram of the structure of one embodiment of the present invention.

[0022] Figure 3 This is a cross-sectional view of the valve body described in this utility model.

[0023] Figure 4 This is a top view of the valve body described in this utility model.

[0024] Figure 5This is a diagram showing the fit between the valve stem and valve body of this utility model (before pressing in).

[0025] Figure 6 for Figure 5 Cross-sectional structural diagram.

[0026] Figure 7 This is a diagram showing the fit between the valve stem and valve body of this utility model (after pressing).

[0027] Figure 8 for Figure 7 Cross-sectional structural diagram. Detailed implementation method:

[0028] like Figures 2-4 As shown, the present invention provides an electromagnet core for a flat knitting machine, comprising a drive unit 1 and a drive head 2.

[0029] The driving part 1 is preferably a cylinder, and a first boss 11 is provided on the top of the driving part 1. The first boss 11 is preferably a conical boss. A second boss 12 is provided on the upper part of the first boss 11. The second boss 12 can be cylindrical or conical.

[0030] One end of the drive head 2 is a working end 21, and the other end is a mounting end 22. The diameter of the mounting end 22 is slightly smaller than the diameter of the working end 21. A groove 23 is provided between the working end 21 and the mounting end 22. The groove 23 is preferably located at the connection between the working end 21 and the mounting end 22. The groove 23 is preferably an annular groove.

[0031] A cavity 13 is provided in the drive unit 1, which passes through the first boss 11 and the second boss 12. The cavity 13 has an opening at the second boss 12.

[0032] The inner diameter of the cavity 13 is slightly larger than the outer diameter of the mounting end 22 of the drive head 2, so that the mounting end 22 of the drive head 2 can be inserted into the cavity 13 and remain tightly fitted.

[0033] The groove 23 is adapted to the second protrusion 12. Specifically, when the drive head 2 is inserted into the cavity 13 of the drive part 1, the second protrusion 12 is located at the position of the groove 23. The second protrusion 12 has a wedge-shaped structure that cooperates with the groove 23 to realize the positioning of the drive head 2 in the drive part 1, so as to prevent the drive head 2 from coming out of the drive part 1 during operation.

[0034] For ease of production, such as Figures 5-8 As shown, the second boss 12 is a wedge-shaped structure formed within the groove 23 by external pressing. Specifically, as... Figures 5-6As shown, the second boss 12 has a larger diameter than the working end 21 of the drive head 2. When the drive head 2 is inserted into the drive section 1, the extension of the second boss 12 protrudes beyond the working end 21 of the drive head 2, as shown. Figures 7-8 As shown, the protruding extension of the second boss 12 is pressed into the groove 23 by a press to form a wedge-shaped structure, while the outer periphery of the second boss 12 and the drive head 2 form a smooth and flat surface, thereby maintaining a good appearance shape while preventing the drive head 2 from coming out of the drive part 1.

[0035] In a preferred embodiment, a plurality of exhaust holes 14 are provided on the inner wall of the cavity 13 of the drive unit 1. Preferably, the exhaust holes 14 are four in number and are evenly distributed along the circumference of the inner wall of the cavity.

[0036] The electromagnet core for a flat knitting machine of this utility model has the following advantages: 1. The valve stem is positioned in the valve body by the cooperation of the second protrusion and the groove, preventing the drive head 2 from coming out during operation; 2. Through the design of the exhaust groove, there will be no excess gas in the drive part 1 during assembly and operation, thereby ensuring a tight fit between the drive part 1 and the drive head 2.

Claims

1. A cross-machine electromagnet core comprising a driving part, a driving head, characterized in that: The driving part is a cylinder, a first boss is arranged on the top of the driving part, a second boss is arranged on the upper part of the first boss, a cavity is arranged in the driving part and penetrates the first boss and the second boss, the cavity is provided with an opening at the second boss, a plurality of exhaust holes are arranged on the cavity inner wall of the cavity of the driving part, one end of the driving head is a working end, the other end is a mounting end, the diameter of the mounting end is slightly smaller than the diameter of the working end, a groove is arranged between the working end and the mounting end, the groove is matched with the second boss and is used for positioning the driving head in the driving part.

2. A cross machine electromagnet core as claimed in claim 1, characterized in that: The first boss is a conical boss, and the second boss can be a cylindrical boss or a conical boss.

3. A cross machine electromagnet core as claimed in claim 1, characterized in that: The groove is arranged at the connection between the working end and the mounting end.

4. A cross machine electromagnet core as claimed in claim 1, characterized in that: The groove is an annular groove.

5. A cross machine electromagnet core as claimed in claim 1, characterized in that: The inner diameter of the cavity is slightly larger than the outer diameter of the mounting end of the driving head, so that the mounting end of the driving head can be inserted into the cavity and tightly fitted.

6. A cross machine electromagnet core as claimed in claim 1, characterized in that: When the driving head is inserted into the cavity of the driving part, the second boss is just located at the position of the groove.

7. A cross machine electromagnet core as claimed in claim 1, characterized in that: The second boss has a wedge structure matched with the groove, so as to realize the positioning of the driving head in the driving part.

8. A cross machine electromagnet core according to claim 7, characterized in that: The wedge structure is formed in the groove by externally pressing the second boss.

9. A cross machine electromagnet core according to claim 8, characterized in that: The second boss is provided with a larger diameter than the working end of the driving head, the outer extension of the second boss protrudes from the working end of the driving head when the driving head is inserted into the driving part, the outer extension of the second boss protruding from the working end is pressed into the groove by a pressing machine, so as to form a wedge structure in the groove.

10. A cross machine electromagnet core as claimed in claim 8, characterized in that: The exhaust holes are arranged as four rows and are uniformly arranged along the circumferential direction of the cavity inner wall.

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