Staggered linear multi-arm motor

Abstract

The application discloses a linear multi-arm motor with staggered arrangement, which comprises a bottom plate, a cover plate, a guide rail mounting plate, linear guides, a magnet mounting plate, a moving body assembly, an outer positioning plate and an outer side plate; the guide rail mounting plate is arranged at the middle position of the bottom plate; the guide rail mounting plate comprises opposite front and back mounting surfaces, and a plurality of linear guides are arranged on the front and back mounting surfaces respectively; the center distance between adjacent linear guides on the same mounting surface is 24 mm; the number of the moving body assembly is matched with the number of the linear guides; the center distance between horizontal connecting sections of moving body bodies of adjacent moving body assemblies is 12 mm; the magnet mounting plate is provided in two groups and arranged on the two sides of the guide rail mounting plate; and the magnet mounting plate and the moving body assembly are arranged alternately. Thus, the linear multi-arm motor with staggered arrangement integrates original multiple independent linear motors to obtain an integrated linear motor.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of linear motor design, in particular to a linear multi-arm motor with staggered arrangement. BACKGROUND

[0002] A textile machine is composed of five kinds of motion mechanisms, i.e. warp opening, weft feeding, beating-up, warp feeding and winding. The energy consumed by the opening mechanism accounts for 30-40% of the total energy consumed by the textile machine, which is mainly consumed in the process of up-and-down reciprocating movement of the heald frame.

[0003] The warp opening equipment of a modern textile machine has two types, i.e. mechanical opening machine and electronic opening machine. The cam opening machine is mainly used in the mechanical opening machine. Although the performance of the cam opening machine is not as good as that of the electronic opening machine, the cost performance of the cam opening machine is higher, so the cam opening machine is most widely used in actual production. However, the textile machine using the cam opening machine must replace the cam to change the fabric pattern, so it is difficult to change the pattern in the production process. The electronic opening machine can input the pattern into the computer, so it is convenient and fast to change the textile fabric variety.

[0004] The mainstream electronic multi-arm machine has a complex structure. The electromagnetic clutch for selecting the pattern has a complex mechanism. Due to the fact that the heald frame of the textile machine has many pieces and the distance between their center lines has been standardized to 12 mm, the size of the parts of the existing electronic multi-arm machine is very weak. In the high-speed running state, the impact force borne by the parts is extremely large, so the service life of the clutch parts is limited.

[0005] With the trend of mechanical and electronic integration, the patent technology of the electronic opening mechanism of the directly driven heald frame has appeared. The technical basis is the heald frame static force and inertial force balance technology.

[0006] In 2017, we applied for a patent with the application number 2017102222908 and the name of "Opening machine balancing heald frame static force and inertial force", which is based on the design principle of "symmetry and anti-symmetry principle and mechanism inertial force balance" as the theoretical basis, solves the inertial resistance problem of the linear motor itself, and makes it possible for the linear motor to directly drive the heald frame of the textile machine. However, a new difficulty is encountered in the implementation process: the heald frame of the textile machine has many pieces, and the distance between their center lines has been standardized to 12 mm, which is too small. It is very difficult to design the structure of the linear motor.

[0007] Therefore, the present application provides a new design: integrated linear motor to solve this key technical problem. SUMMARY

[0008] The technical problem solved by the present application is to provide a linear multi-arm motor with staggered arrangement, which integrates multiple independent linear motors together and is an integrated linear motor.

[0009] To solve the above technical problems, the technical scheme adopted by the present application is:

[0010] A linear multi-arm motor with staggered arrangement comprises a magnet mounting plate, a moving body assembly, a bottom plate, a cover plate, a guide rail mounting plate, linear guides, an outer positioning plate and an outer side plate.

[0011] The guide rail mounting plate is arranged at the middle position of the bottom plate, and the top of the guide rail mounting plate is arranged at the middle position of the cover plate.

[0012] The guide rail mounting plate comprises a front mounting surface and a back mounting surface arranged opposite to each other.

[0013] A plurality of linear guides are arranged on the front mounting surface and the back mounting surface, and the linear guides on the front mounting surface and the back mounting surface are staggered, with a staggered distance of 12 mm.

[0014] The magnet mounting plate is provided in two groups and arranged on both sides of the guide rail mounting plate.

[0015] The center distance between adjacent magnet mounting plates on the same side of the guide rail mounting plate is 24 mm, and the center distance between the adjacent magnet mounting plates and the linear guides is 12 mm.

[0016] The number of the moving body assembly is adapted to the number of the linear guides, and the moving body assembly comprises a moving body, a guide rail slide, a slide connecting leg and a coil.

[0017] The moving body is in L shape and comprises a horizontal connecting segment and a vertical driving segment.

[0018] The guide rail slide is adapted to the linear guide.

[0019] The guide rail slide is fixedly arranged on the slide connecting leg, and the slide connecting leg is fixedly arranged on the vertical driving segment of the moving body.

[0020] The outer positioning plate is two, symmetrically arranged on both sides of the guide rail mounting plate; and the magnet mounting plate is fixedly arranged on the outer positioning plate.

[0021] Compared with the prior art, the application has the following technical effects:

[0022] The structure of the present application is compact. In the case where the distance between the heald frames of the textile machine has been fixed at 12 mm, the distance between the adjacent linear guides located on the same side of the guide rail mounting plate is expanded to 24 mm by staggering the linear guides on the front and back mounting surfaces of the guide rail mounting plate, thereby solving the manufacturing difficulty involved in the linear motor, i.e., avoiding the difficulty of realizing the structure of the linear motor within a size range of 12 mm, and relaxing the requirement for the size of the linear motor to 24 mm. The moving body body is arranged in an L shape, and the horizontal connecting segments of all the moving body bodies are arranged in a row with a center distance of 12 mm between the horizontal connecting segments of adjacent two moving body bodies. Through the above arrangement, the horizontal connecting segments of all the moving body bodies are in the standard position for external connection, which is adapted to the standard distance of 12 mm between the heald frames of the current textile machine, and perfect combination with the standard structure of the existing textile machine is realized.

[0023] On the basis of the above technical solution, the application can also be improved as follows.

[0024] Preferably, two connecting holes are arranged on the horizontal connecting segment of the moving body body for connecting the external heald frame, and the center of the connecting line of the centers of the two connecting holes is located on the center surface of the guide rail mounting plate. That is, the moving body assemblies mounted by the guide rails on the front and back surfaces of the guide rail mounting plate are anti-symmetrical and staggered by 12 mm, and the horizontal connecting segments of the moving body bodies are reversely extended, and each moving body body connecting segment is processed with two connecting holes for external mounting, and the center of the connecting line of the two connecting holes coincides with the center surface of the guide rail mounting plate. This is the need for the entire staggered linear multi-arm motor to realize its mechanical balance and external symmetrical connection to drive the heald frames of the textile machine.

[0025] Preferably, the number of coils is an integer multiple of 3. When the number of coils is an integer multiple of 3, the coils can be connected to three-phase alternating current to realize a complete alternating magnetic field, and the superimposed strength of the magnetic field is large, and the output power of the motor is strong.

[0026] Preferably, a plurality of magnets are symmetrically arranged on the front and back surfaces of the magnet mounting plate.

[0027] The polarities of the adjacent magnets located on the same surface of the magnet mounting plate are opposite.

[0028] The polarities of the opposite ends of the corresponding magnets located on the front and back surfaces of the magnet mounting plate are opposite.

[0029] The polarities of the magnets at corresponding positions on adjacent magnet mounting plates are opposite. This arrangement not only facilitates the installation of the magnets, but also ensures the stability of the magnetic field in which the moving body assembly is located.

[0030] Preferably, ventilation windows are provided on the surface of the outer plate to facilitate heat dissipation during operation of the linear motor.

[0031] Preferably, the outer positioning plate and the guide rail mounting plate are provided with magnet plate slots, and the magnet mounting plate is snapped into the magnet plate slots, and fixation is achieved by snapping, which is convenient for assembly.

[0032] Preferably, the bottom plate and the cover plate are both provided with positioning grooves, and the outer positioning plate and the guide rail mounting plate are arranged in the corresponding positioning grooves on the bottom plate and the cover plate, thereby achieving high-precision positioning of the guide rail mounting plate and the outer positioning plate.

[0033] Preferably, the top of the outer plate is connected to the cover plate, and the bottom of the outer plate is connected to the bottom plate, which provides a stronger connection and fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the appearance structure of the staggered linear multi-arm motor of the invention;

[0035] Figure 2 For Figure 1 Schematic diagram of the internal structure after some components are hidden;

[0036] Figure 3 For Figure 2 The schematic diagram of the structure behind the outermost magnet mounting plate on the right side is further hidden;

[0037] Figure 4 For Figure 3 The schematic diagram of the structure after the multiple magnet mounting plates and moving body components on the left side are hidden;

[0038] Figure 5 A schematic diagram of the structure of the moving body assembly of the staggered linear multi-arm motor of the invention;

[0039] Figure 6 A schematic diagram of the structure of the guide rail mounting plates in the staggered linear dobby motor of the invention;

[0040] Figure 7 A schematic diagram of the structure of the staggered inner and outer positioning plates of the linear dobby motor of the invention;

[0041] Figure 8 A schematic diagram of the positions of the guide rail mounting plate, magnet mounting plate and moving body assembly in the staggered linear multi-arm motor of the invention;

[0042] Figure 9 As Figure 2 Enlarged view at A;

[0043] Figure 10 As the magnet mounting plate structure schematic diagram;

[0044] Figure 11 As Figure 10 The cross-sectional structure schematic diagram along A-A direction.

[0045] In the drawings, the component names represented by each reference numeral are listed as follows:

[0046] 1, the bottom plate; 2, the guide rail mounting plate; 2.1, the positive mounting surface; 2.2, the back mounting surface; 3, the linear guide rail; 4, the magnet mounting plate; 6, the moving body assembly; 6.1, the moving body body; 6.1.1, the horizontal connecting section; 6.1.2, the vertical drive section; 6.2, the guide rail slide; 6.3, the slide connecting foot; 6.4, the coil; 6.5, the connecting hole; 7, the outer positioning plate; 8, the cover plate; 9, the outer side plate; 10, the magnet plate clamping groove. DETAILED DESCRIPTION

[0047] The principles and features of the application are described below in conjunction with the drawings, and the examples are only used to explain the application and not to limit the scope of the application.

[0048] As Figures 1-4 shown, a linear multi-arm motor arranged staggeredly, comprising a bottom plate 1, a guide rail mounting plate 2, a linear guide rail 3, a magnet mounting plate 4, a moving body assembly 6, an outer positioning plate 7 and a cover plate 8, an outer side plate 9;

[0049] The bottom plate 1 is provided with a guide rail mounting plate positioning groove, the bottom of the guide rail mounting plate 2 is arranged in the corresponding positioning groove of the bottom plate 1, and the top of the guide rail mounting plate 2 is arranged in the positioning groove on the cover plate 8.

[0050] The outer positioning plate 7 is two pieces, parallel to the guide rail mounting plate 2, arranged on both sides of the guide rail mounting plate 2 respectively, the bottom of which is arranged in the corresponding positioning groove on the bottom plate 1, and the top of which is arranged in the corresponding positioning groove on the cover plate 8.

[0051] As Figure 5 shown, the moving body assembly 6 includes a moving body body 6.1, a guide rail slide 6.2, a slide connecting foot 6.3 and a coil 6.4;

[0052] The motor body 6.1 comprises a horizontal connecting section 6.1.1 arranged horizontally and a vertical drive section 6.1.2 arranged vertically. Two connecting holes 6.5 are provided in the horizontal connecting section 6.1.1 of the motor body. The vertical drive section of the motor body is 6mm thick due to space limitations. The horizontal connecting section of the motor body is 8mm thick to accommodate textile heald frame standards. Because the motor body 6.1 is L-shaped and positioned on either side of the guide rail mounting plate 2, all of the horizontal connecting sections 6.1.1 of the motor body are arranged in a row in the middle of the entire motor. The horizontal connecting section 6.1.1 of the motor body 6.1 is provided with two connecting holes for connecting to an external heald frame. The center of the line connecting the centers of the two connecting holes is located on the center plane of the guide rail mounting plate 2. That is, on the front and back sides of the guide rail mounting plate 2, the moving body components mounted via the guide rails are anti-symmetrical and staggered by 12mm. The horizontal connecting sections 6.1.1 of the moving body 6.1 extend in opposite directions. Each horizontal connecting section 6.1.1 of the moving body 6.1 is machined with two connecting holes 6.5 for external mounting. The center of the line connecting the two connecting holes 6.5 coincides with the center plane of the guide rail mounting plate 2. Figure 9 As shown, the center distance between the horizontal connecting sections of two adjacent moving bodies is 12 mm.

[0053] The guide rail slide 6.2 is arranged on the vertical driving section 6.1.2 of the moving body through the slide connecting foot 6.3;

[0054] The guide rail slide 6.2 is provided on the linear guide rail 3. Generally speaking, the linear guide rail 3 and the guide rail slide 6.2 are produced and sold in sets. In order to fix the vertical driving section of the moving body 6.1 on the guide rail slide 6.2, an adapted slide connecting foot 6.3 must be provided.

[0055] Multiple coils 6.4 are sequentially arranged on the vertical drive segments 6.1.2 of the motor body. These coils are coreless. This type of linear motor offers the advantages of zero magnetic flux leakage and no interference between adjacent motors. The number of coils 6.4 is an integer multiple of three to facilitate connection to a three-phase AC power source.

[0056] The top of the outer plate 9 is connected to the cover plate 8 , and the bottom of the outer plate 9 is connected to the bottom plate 1 , thereby protecting the internal components of the motor.

[0057] like Figure 6 and Figure 7 As shown, the outer positioning plate 7 and the guide rail mounting plate 2 are provided with a magnet plate slot 10, and the magnet mounting plate 4 is clamped in the magnet plate slot 10;

[0058] like Figure 8As shown, it is a schematic diagram of an upward perspective when only the guide rail mounting plate, magnet mounting plate, linear guide rail and moving body assembly are retained. The guide rail mounting plate 2 includes a front mounting surface 2.1 and a back mounting surface 2.2 facing each other, and a number of linear guide rails 3 are respectively arranged on the front mounting surface 2.1 and the back mounting surface 2.2; the linear guide rails 3 on the front mounting surface 2.1 and the back mounting surface 2.2 are staggered, with a staggered distance of 12mm; the center distance between the center lines of adjacent linear guide rails 3 located on the front mounting surface 2.1 is 24mm, and similarly, the center distance between the center lines of adjacent linear guide rails 3 located on the back mounting surface 2.1 is 24mm. Therefore, the thickness of each linear motor itself can reach a maximum of 24mm, avoiding the difficulty of setting the motor within the standard gap of 12mm between textile heald frames.

[0059] This solution is provided with two groups of magnet mounting plates, each group having 9 magnet mounting plates 4, one group is arranged on the left side of the guide rail mounting plate 2, and the other group is arranged on the right side of the guide rail mounting plate 2;

[0060] The magnet mounting plate 4 and the adjacent moving body assembly 6 are arranged closely together, and the direct distance between the adjacent magnet mounting plates 4 and the moving body assembly 6 is 1 mm, that is, a gap of 1 mm is retained between the adjacent magnet mounting plates 4 and the moving body assembly 6; the distance between the center lines of the adjacent magnet mounting plates 4 located on the same mounting surface of the guide rail mounting plate 2 is 24 mm;

[0061] A plurality of magnets are symmetrically provided on both sides of the magnet mounting plate 4;

[0062] like Figure 10 As shown, the magnet mounting plate 4 is symmetrically provided with a plurality of magnet mounting positions on both sides, and magnets are provided in the magnet mounting positions ( Figure 10 (not shown in the figure), the polarities of adjacent magnets on the same side of the magnet mounting plate 4 are opposite; the polarities of the corresponding magnets on both sides of the magnet mounting plate 4 are opposite. Figure 10 There is no magnet in the picture, so Figure 11 The N and S pole markings are the pole layouts of the magnets after they are installed.

[0063] The polarities of the magnets at corresponding positions on adjacent magnet mounting plates 4 are opposite.

[0064] The number of the moving body components 6 matches the number of the linear guide rails 3 ; the moving body components 6 are respectively arranged on the corresponding linear guide rails 3 .

[0065] In this embodiment, with the help of the huge magnetic field formed by the permanent magnet, only a few milliamperes of current can be converted into 55 kilograms of force on each single linear motor, which can be directly used to drive the heald frame.

[0066] The above merely provides the preferred embodiment of the application, and is not intended to limit the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A staggered linear multi-arm motor, comprising a magnet mounting plate and a moving body assembly, characterized in that: It also includes a base plate, a cover plate, a guide rail mounting plate, a linear guide rail, an external positioning plate, and an outer side plate; The guide rail mounting plate is arranged at the middle position of the bottom plate; the top of the guide rail mounting plate is arranged at the middle position of the cover plate; The guide rail mounting plate includes a front mounting surface and a back mounting surface that are arranged opposite to each other; A plurality of linear guide rails are arranged on the front mounting surface and the back mounting surface, and the linear guide rails on the front mounting surface and the back mounting surface are staggered with a staggered distance of 12 mm; The center distance between adjacent linear guides on the same mounting surface is 24mm; There are two sets of magnet mounting plates, one on each side of the guide rail mounting plate; the other on each side of the linear guide rail adapted thereto; the center distance between adjacent magnet mounting plates on the same mounting surface of the guide rail mounting plate is 24 mm; the center distance between adjacent magnet mounting plates and the linear guide rail is 12 mm; The number of the moving body components is adapted to the number of the linear guide rails, and the moving body components include a moving body, a guide rail slide, a slide connecting foot and a coil; The moving body is L-shaped, including a horizontal connecting section of the moving body and a vertical driving section of the moving body; the horizontal connecting sections of all the moving bodies are arranged in a row, and the center distance between the horizontal connecting sections of two adjacent moving bodies is 12 mm; The guide rail slide is adapted to the linear guide rail; The guide rail slide is fixedly arranged on the vertical driving section of the moving body through the slide connecting foot; There are a plurality of coils, which are sequentially arranged on the vertical driving section of the moving body, and there is no iron core in the coils; There are two outer positioning plates, which are symmetrically arranged on both sides of the guide rail mounting plate; the magnet mounting plate is fixedly arranged on the outer positioning plate; The number of the coils is an integer multiple of 3; The bottom plate and the cover plate are both provided with positioning grooves, and the outer positioning plate and the guide rail mounting plate are arranged in the corresponding positioning grooves on the bottom plate and the cover plate.

2. The staggered linear multi-arm motor according to claim 1, characterized in that: Two connecting holes are provided on the horizontal connecting section of the moving body, and the center of the line connecting the centers of the two connecting holes is located on the central surface of the guide rail mounting plate.

3. The staggered linear multi-arm motor according to claim 1 or 2, characterized in that: A plurality of magnets are symmetrically arranged on the front and back sides of the magnet mounting plate; Adjacent magnets located on the same surface of the magnet mounting plate have opposite polarities; The polarities of the opposite ends of the corresponding magnets located on the front and back sides of the magnet mounting plate are opposite; The polarities of the magnets at corresponding positions on adjacent magnet mounting plates are opposite.

4. The staggered linear multi-arm motor according to claim 3, characterized in that: The surface of the outer side plate is provided with ventilation windows.

5. The staggered linear multi-arm motor according to claim 2, characterized in that: The outer positioning plate and the guide rail mounting plate are provided with magnet plate clamping grooves, and the magnet mounting plate is clamped in the magnet plate clamping grooves.

6. The staggered linear multi-arm motor according to claim 5, characterized in that: The top of the outer plate is connected to the cover plate, and the bottom of the outer plate is connected to the bottom plate.

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