Fixed feeding box structure capable of adapting to angle change of electromagnetic screen

Abstract

The utility model relates to the technical field of electromagnetic screens, and provides a fixed feeding box structure capable of adapting to the angle change of an electromagnetic screen, which comprises a sliding seat, a transverse supporting seat and a longitudinal supporting seat, the sliding seat is positioned between a feeding box and a screen box, and the sliding seat is provided with a transverse sliding chute and a longitudinal sliding chute; the upper end of the transverse supporting seat is used for being arranged on the feeding box, and the lower end of the transverse supporting seat is arranged in the transverse sliding groove in a sliding mode so that the sliding seat can move in the transverse direction when the inclination angle of the screen box changes. One end of the longitudinal supporting base is used for being arranged on the screen box, and the other end of the longitudinal supporting base is arranged in the longitudinal sliding groove in a sliding mode so that the sliding base can move in the longitudinal direction when the inclination angle of the screen box changes. According to the technical scheme, the problems that a structure is urgently needed in the prior art, the angle of the screen box can be adjusted without being affected, the structure is simple, too much space is not occupied, and machining, manufacturing and on-site adjustment are facilitated are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic screens, and in particular to a fixed feed box structure capable of adapting to angle changes of electromagnetic screens. Background Art

[0002] In the coal preparation industry, the three-body intelligent high-frequency dehydration and desliming fine screen (hereinafter referred to as electromagnetic screen) uses the electromagnetic vibrator as the excitation source to make the screen produce high-frequency vibration, destroy the surface tension of the liquid, and allow the medium and fine particles below the aperture to pass through the screen surface to achieve the effect of dehydration and classification. The electromagnetic screen has a high aperture rate, significantly improved dehydration efficiency, and a simple structure. The main parts have a long life and do not require maintenance or replacement except for wearing parts. It has gradually become the preferred equipment for the dehydration and desliming process of coarse coal slime.

[0003] The electromagnetic screen mainly consists of three parts: the feed box, the screen box, and the box support. The feed box is the part that connects the on-site incoming material pipeline and the screen box. There are generally two ways of feeding: upper feeding and front feeding. The material enters the box from the feed pipe, and is blocked by the internal partition, slowing down the material speed. The feed box plays a role in slowing down the impact of the incoming material and evenly distributing the material. At present, there are two ways to fix the electromagnetic screen feed box: the first is that the feed box is connected to the side plate of the screen box by bolts. This connection method has a simple structure and saves materials, but it cannot be adjusted when the screen box angle changes. It can only be fine-tuned within a very small range during the first installation. In actual use, it is found that the operating space is small, the bolts are difficult to tighten, and there are problems such as deformation of the connecting plate; the second is to weld the support on the side of the feed box, the support is connected to the feed box leg, and the leg is fixed on the ground foundation or the bottom frame of the screen machine. This connection method is also relatively simple, but the required external frame is wide, occupies a large space, and the leg requires more steel materials, and the manufacturing cost is high.

[0004] During the use of electromagnetic screens, changes in coal quality may cause some changes in actual production conditions, such as the increase or decrease in the amount of coal slurry water, changes in the fluidity of the material on the screen, changes in the size of the screen holes, etc. When these changes affect normal production, it is often necessary to change the angle of the electromagnetic screen to correct them. When adjusting the angle of the electromagnetic screen, the feed box of the first fixed method will change with the adjustment of the screen box, but because the feed pipe and the feed box on site are usually welded and hard-connected, the feed box and the feed pipe need to be separated and re-welded together after they are in place, which is a lot of work; the feed box of the second fixed method has been fixed. Although the feed box is not affected when the screen box adjusts its angle, it has the disadvantages of occupying a large space, consuming a lot of materials, and high cost.

[0005] Therefore, there is an urgent need for a structure that can be unaffected when the screen box is adjusted in angle, has a simple structure, does not take up too much space, and is easy to manufacture and adjust on site. Utility Model Content

[0006] The utility model proposes a fixed feed box structure that can adapt to changes in the angle of the electromagnetic screen, solving the problem that a structure is urgently needed in the related technology, which can remain unaffected when the screen box adjusts its angle, has a simple structure, does not occupy too much space, and is easy to process, manufacture and adjust on site.

[0007] The technical solution of the utility model is as follows: a fixed feed box structure capable of adapting to the angle change of the electromagnetic screen, which is used to be arranged between the feed box and the screen box, the screen box is arranged obliquely, and the feed box is located at the upper end of the screen box. The key lies in: comprising:

[0008] A slide seat, the slide seat is located between the feed box and the screen box, and the slide seat has a transverse slide groove and a longitudinal slide groove;

[0009] A transverse support seat, the upper end of which is used to be arranged on the feed box, and the lower end of which is slidably arranged in the transverse slide groove, so as to enable the slide seat to move transversely when the inclination angle of the screen box changes;

[0010] A longitudinal support seat, one end of which is used to be arranged on the screen box, and the other end of which is slidably arranged in the longitudinal slide groove, so as to enable the slide seat to move longitudinally when the inclination angle of the screen box changes.

[0011] The slide seat comprises:

[0012] A transverse plate, wherein the transverse slide groove is arranged on the transverse plate;

[0013] A longitudinal plate, the longitudinal slide groove is arranged on the longitudinal plate, and the longitudinal plate is arranged perpendicular to the transverse plate.

[0014] It also includes a supporting rib plate, which is arranged between the transverse plate and the longitudinal plate.

[0015] The supporting rib plate, the transverse plate and the longitudinal plate are integrally formed.

[0016] Also includes,

[0017] A transverse locking bolt, wherein the transverse locking bolt is inserted in the transverse sliding groove;

[0018] A transverse locking nut, the transverse locking nut is threadedly connected to the transverse locking bolt, the bottom of the transverse support seat is provided with a transverse positioning plate, the transverse locking bolt is plugged into the transverse positioning plate, the transverse positioning plate and the transverse plate are clamped between the nut of the transverse locking bolt and the transverse locking nut.

[0019] The number of the transverse locking bolts is at least two, all of the transverse locking bolts are arranged along the length direction of the transverse sliding groove, and each of the transverse locking bolts is provided with the transverse locking nut.

[0020] The lateral support seat also includes:

[0021] A transverse support plate, the transverse support plate is arranged on the transverse positioning plate;

[0022] A transverse positioning sleeve is arranged on the transverse supporting plate, and the transverse positioning sleeve is used to be arranged on the feed box.

[0023] Also includes,

[0024] A longitudinal locking bolt, wherein the longitudinal locking bolt is inserted in the longitudinal sliding groove;

[0025] A longitudinal locking nut, the longitudinal locking nut is threadedly connected to the longitudinal locking bolt, the bottom of the longitudinal support seat is provided with a longitudinal positioning plate, the longitudinal locking bolt is plugged into the longitudinal positioning plate, the longitudinal positioning plate and the longitudinal plate are clamped between the nut of the longitudinal locking bolt and the longitudinal locking nut.

[0026] The number of the longitudinal locking bolts is at least two, all of the longitudinal locking bolts are arranged along the length direction of the longitudinal slide groove, and each of the longitudinal locking bolts is provided with the longitudinal locking nut.

[0027] The longitudinal support seat also includes:

[0028] A longitudinal support plate, wherein the longitudinal support plate is arranged on the longitudinal positioning plate;

[0029] A longitudinal positioning sleeve is arranged on the longitudinal support plate, and the longitudinal positioning sleeve is used to be arranged on the screen box.

[0030] The working principle and beneficial effects of the utility model are as follows: the slide is located between the feed box and the screen box, and the slide has a transverse slide groove and a longitudinal slide groove; the upper end of the transverse support seat is used to be set on the feed box, and the lower end of the transverse support seat is slidably set in the transverse slide groove, so that the slide moves transversely when the inclination angle of the screen box changes; one end of the longitudinal support seat is used to be set on the screen box, and the other end of the longitudinal support seat is slidably set in the longitudinal slide groove, so that the slide moves longitudinally when the inclination angle of the screen box changes. The screen box is tilted and arranged on the bracket. The lower end of the screen box is hinged to the bracket through a hinge shaft. When the upper end of the screen box rotates downward with the hinge shaft at the lower end as the center, the longitudinal support seat on the screen box will also rotate downward with the hinge shaft as the center. By using the displacement compensation principle, the arc displacement during the rotation of the longitudinal support seat can be decomposed into lateral displacement and longitudinal displacement. Since the feed box is fixed to the feed pipe, the sliding cooperation between the slide seat and the lateral support seat and the sliding cooperation between the slide seat and the longitudinal support seat can compensate for the displacement in these two directions, thereby adjusting the position of the feed box relative to the screen box to adapt to the relative state of the feed box and the screen box after the inclination angle of the screen box changes. The structure is simple, does not take up too much space, and is easy to process and manufacture and adjust on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0032] Figure 1 It is a schematic diagram of the structure of the utility model when it is used specifically.

[0033] Figure 2 It is a structural schematic diagram of one direction of the utility model.

[0034] Figure 3 It is a structural schematic diagram of another direction of the utility model.

[0035] Figure 4 It is the front view of the utility model.

[0036] In the figure: 1, feed box, 2, screen box, 3, slide seat, 3-1, transverse plate, 3-2, longitudinal plate, 4, transverse support seat, 4-1, transverse positioning plate, 4-2, transverse support plate, 4-3, transverse positioning sleeve, 5, longitudinal support seat, 5-1, longitudinal positioning plate, 5-2, longitudinal support plate, 5-3, longitudinal positioning sleeve, 6, transverse slide, 7, longitudinal slide, 8, support rib plate, 9, transverse locking bolt, 10, transverse locking nut, 11, longitudinal locking bolt, 12, longitudinal locking nut, 13, bracket, 14, hinge shaft, 15, first support shaft, 16, second support shaft. DETAILED DESCRIPTION

[0037] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0038] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0039] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0040] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0041] Example, see Figure 1 , Figure 2 , Figure 3 and Figure 4 , is an embodiment of the utility model, which proposes a fixed feed box structure that can adapt to the change of the angle of the electromagnetic screen, which is used to be arranged between the feed box 1 and the screen box 2, and the screen box 2 is arranged tilted. The feed box 1 is located at the upper end of the screen box 2, and includes a slide 3, a transverse support seat 4, and a longitudinal support seat 5. The slide 3 is located between the feed box 1 and the screen box 2, and the slide 3 has a transverse slide groove 6 and a longitudinal slide groove 7; the upper end of the transverse support seat 4 is used to be arranged on the feed box 1, and the lower end of the transverse support seat 4 is slidably arranged in the transverse slide groove 6, which is used to make the slide 3 move laterally when the inclination angle of the screen box 2 changes; one end of the longitudinal support seat 5 is used to be arranged on the screen box 2, and the other end of the longitudinal support seat 5 is slidably arranged in the longitudinal slide groove 7, which is used to make the slide 3 move longitudinally when the inclination angle of the screen box 2 changes.

[0042] Furthermore, if Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the slide seat 3 includes a transverse plate 3-1, a longitudinal plate 3-2, a transverse chute 6 is arranged on the transverse plate 3-1; a longitudinal chute 7 is arranged on the longitudinal plate 3-2, and the longitudinal plate 3-2 is arranged perpendicularly to the transverse plate 3-1. The right end of the screen box 2 is tilted upward, the transverse plate 3-1 and the longitudinal plate 3-2 are arranged perpendicularly to form a right-angle structure, the transverse chute 6 is arranged on the transverse plate 3-1 along the left-right direction, the longitudinal chute 7 is arranged on the longitudinal plate 3-2 along the up-down direction, the longitudinal plate 3-2 is located below the right end of the transverse plate 3-1, the transverse support seat 4 is located above the transverse plate 3-1 and forms a sliding fit with the transverse plate 3-1, and the longitudinal support seat 5 is located on the right side of the longitudinal plate 3-2 and forms a sliding fit with the longitudinal plate 3-2. The structure is simple and easy to use.

[0043] Furthermore, if Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it also includes a supporting rib plate 8, which is arranged between the transverse plate 3-1 and the longitudinal plate 3-2. The supporting rib plate 8 is used to connect the transverse plate 3-1 and the longitudinal plate 3-2 of the slide 3, so that the connection between the transverse plate 3-1 and the longitudinal plate 3-2 is more firm and reliable, and the overall strength is higher.

[0044] Furthermore, if Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the support rib plate 8 and the transverse plate 3-1 and the longitudinal plate 3-2 are integrally formed structures, so that the connection between the support rib plate 8 and the transverse plate 3-1, and between the support rib plate 8 and the longitudinal plate 3-2 is more firm and reliable, and the overall strength is higher and the bearing capacity is stronger.

[0045] Furthermore, if Figure 2 , Figure 3 and Figure 4 As shown, it also includes a transverse locking bolt 9 and a transverse locking nut 10. The transverse locking bolt 9 is inserted in the transverse slide 6. The transverse locking nut 10 is threadedly connected with the transverse locking bolt 9. The bottom of the transverse support seat 4 has a transverse positioning plate 4-1. The transverse locking bolt 9 is inserted into the transverse positioning plate 4-1. The transverse positioning plate 4-1 and the transverse plate 3-1 are clamped between the nut of the transverse locking bolt 9 and the transverse locking nut 10. The transverse positioning plate 4-1 contacts the upper end surface of the transverse plate 3-1. When the angle of the screen box 2 is adjusted, the transverse locking nut 10 is threadedly connected with the transverse locking bolt 9, and the transverse positioning plate 4-1 and the transverse plate 3-1 are clamped between the nut of the transverse locking bolt 9 and the transverse locking nut 10, so that the position between the feed box 1 and the slide seat 3 is fixed, and the stability is better.

[0046] Furthermore, if Figure 2 , Figure 3 and Figure 4 As shown, there are at least two transverse locking bolts 9, all of which are arranged along the length direction of the transverse chute 6, and each transverse locking bolt 9 is provided with a transverse locking nut 10. Multiple transverse locking bolts 9 and multiple transverse locking nuts 10 work together to clamp the transverse positioning plate 4-1 and the transverse plate 3-1 together, making the connection more firm and reliable.

[0047] Furthermore, if Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the transverse support seat 4 also includes a transverse support plate 4-2 and a transverse positioning sleeve 4-3. The transverse support plate 4-2 is arranged on the transverse positioning plate 4-1; the transverse positioning sleeve 4-3 is arranged on the transverse support plate 4-2, and the transverse positioning sleeve 4-3 is used to be arranged on the feed box 1. The transverse support plate 4-2 and the transverse positioning plate 4-1 form an L-shaped structure, a first support shaft 15 is arranged on the feed box 1, the transverse positioning sleeve 4-3 is hinged to the first support shaft 15, and the transverse positioning plate 4-1 contacts the upper end surface of the slide seat 3, so that the transverse support seat 4 and the slide seat 3 have a sufficiently large contact area, and the stability during the movement is better.

[0048] Furthermore, if Figure 2 , Figure 3 and Figure 4 As shown, it also includes a longitudinal locking bolt 11 and a longitudinal locking nut 12. The longitudinal locking bolt 11 is inserted in the longitudinal slide groove 7; the longitudinal locking nut 12 is threadedly connected with the longitudinal locking bolt 11, and the bottom of the longitudinal support seat 5 has a longitudinal positioning plate 5-1, the longitudinal locking bolt 11 is inserted into the longitudinal positioning plate 5-1, and the longitudinal positioning plate 5-1 and the longitudinal plate 3-2 are clamped between the nut of the longitudinal locking bolt 11 and the longitudinal locking nut 12. The longitudinal positioning plate 5-1 contacts the right side of the longitudinal plate 3-2. When the angle of the screen box 2 is adjusted, the longitudinal locking nut 12 is threadedly connected with the longitudinal locking bolt 11, and the longitudinal positioning plate 5-1 and the longitudinal plate 3-2 are clamped between the nut of the longitudinal locking bolt 11 and the longitudinal locking nut 12, so that the position between the screen box 2 and the slide seat 3 is fixed, and the stability is better.

[0049] Furthermore, if Figure 2 , Figure 3 and Figure 4 As shown, there are at least two longitudinal locking bolts 11, all of which are arranged along the length direction of the longitudinal slide groove 7, and each longitudinal locking bolt 11 is provided with a longitudinal locking nut 12. Multiple longitudinal locking bolts 11 and multiple longitudinal locking nuts 12 work together to clamp the longitudinal positioning plate 5-1 and the longitudinal plate 3-2 together, making the connection more firm and reliable.

[0050] Furthermore, if Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the longitudinal support seat 5 also includes a longitudinal support plate 5-2 and a longitudinal positioning sleeve 5-3. The longitudinal support plate 5-2 is arranged on the longitudinal positioning plate 5-1; the longitudinal positioning sleeve 5-3 is arranged on the longitudinal support plate 5-2, and the longitudinal positioning sleeve 5-3 is used to be arranged on the screen box 2. The longitudinal support plate 5-2 and the longitudinal positioning plate 5-1 form an L-shaped structure, a second support shaft 16 is arranged on the screen box 2, the longitudinal positioning sleeve 5-3 is hinged to the second support shaft 16, and the longitudinal positioning plate 5-1 contacts the right side surface of the slide seat 3, so that the longitudinal support seat 5 and the slide seat 3 have a sufficiently large contact area, and the stability during the movement is better.

[0051] In this embodiment, the left end of the screen box 2 is hinged to the bracket 13 through the hinge shaft 14, the right end of the screen box 2 is tilted upward, the feed box 1 is located above the right end of the screen box 2, the front and rear slide seats 3 are located between the feed box 1 and the screen box 2, the longitudinal plate 3-2 of the slide seat 3 is located below the right end of the transverse plate 3-1, the transverse plate 3-1 is provided with a transverse chute 6, and the longitudinal plate 3-2 is provided with a longitudinal chute 7. A first support shaft 15 is provided on the feed box 1, and a second support shaft 16 is provided on the screen box 2. The axes of the first support shaft 15 and the second support shaft 16 are both arranged along the front-back direction. The transverse positioning sleeve 4-3 of the transverse support seat 4 is hinged to the first support shaft 15, the lower end surface of the transverse positioning plate 4-1 of the transverse support seat 4 contacts the upper end surface of the transverse plate 3-1, the transverse locking bolt 9 is inserted in the transverse chute 6, and the transverse locking nut 10 is threadedly connected with the transverse locking bolt 9, thereby connecting the transverse positioning plate 4-1 with the transverse plate 3-1. The longitudinal positioning sleeve 5-3 of the longitudinal support seat 5 is hinged to the second support shaft 16, the left side of the longitudinal positioning plate 5-1 of the longitudinal support seat 5 contacts the right side of the longitudinal plate 3-2, the longitudinal locking bolt 11 is inserted in the longitudinal slide groove 7, and the longitudinal locking nut 12 is threadedly connected to the longitudinal locking bolt 11, thereby connecting the longitudinal positioning plate 5-1 and the longitudinal plate 3-2 together.

[0052] During normal use, the transverse positioning plate 4-1 and the transverse plate 3-1 are clamped between the nut of the transverse locking bolt 9 and the transverse locking nut 10, and the longitudinal positioning plate 5-1 and the longitudinal plate 3-2 are clamped between the nut of the longitudinal locking bolt 11 and the longitudinal locking nut 12, so that the slide 3 remains in the current position. When the inclination angle of the screen box 2 needs to be adjusted, the transverse locking nut 10 and the longitudinal locking nut 12 are loosened to allow the transverse positioning plate 4-1 and the transverse plate 3-1, and the longitudinal positioning plate 5-1 and the longitudinal plate 3-2 to slide relative to each other. When the upper end of the screen box 2 rotates downward with the hinge shaft 14 at the lower end as the center, the longitudinal support seat 5 on the screen box 2 will also rotate downward with the hinge shaft 14 as the center. By using the displacement compensation principle, the arc displacement of the longitudinal support seat 5 during the rotation process can be decomposed into lateral (i.e. horizontal) displacement and longitudinal (i.e. vertical) displacement. Since the feed box 1 is fixed to the feed pipe, the displacements in these two directions can be compensated by the sliding fit between the lateral positioning plate 4-1 and the lateral plate 3-1, and between the longitudinal positioning plate 5-1 and the longitudinal plate 3-2. Thus, the position of the feed box 1 relative to the screen box 2 is adjusted by changing the position of the slide seat 3 to adapt to the relative state of the feed box 1 and the screen box 2 after the inclination angle of the screen box 2 changes. After reaching the expected angle, tighten the lateral locking nut 10 and the longitudinal locking nut 12. The structure is simple, does not take up too much space, and is easy to process and manufacture and on-site adjustment.

[0053] For the replacement of new electromagnetic screens in renovation projects, this structure can adapt to the incoming material structure on site to the maximum extent, make full use of the existing structure, and reduce the workload and materials of dismantling and modification. For changes in on-site working conditions, it can be adjusted in time by changing the angle of the screen box, reducing the workload of dismantling and modifying the feed box, shortening the construction period, and having stronger adaptability to on-site working conditions. Compared with the feed box supported by the bracket, this structure saves more space, can reduce the amount of steel structure, save manufacturing costs, and has a simpler and more beautiful appearance.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A fixed feed box structure capable of adapting to the angle change of an electromagnetic screen, used to be arranged between a feed box (1) and a screen box (2), the screen box (2) being arranged at an angle, the feed box (1) being located at the upper end of the screen box (2), characterized in that: include, A slide seat (3), the slide seat (3) being located between the feed box (1) and the screen box (2), the slide seat (3) having a transverse slide groove (6) and a longitudinal slide groove (7); A transverse support seat (4), the upper end of the transverse support seat (4) being used to be arranged on the feed box (1), and the lower end of the transverse support seat (4) being slidably arranged in the transverse slide groove (6) so as to enable the slide seat (3) to move transversely when the inclination angle of the screen box (2) changes; A longitudinal support seat (5), one end of which is used to be arranged on the screen box (2), and the other end of which is slidably arranged in the longitudinal slide groove (7) to enable the slide seat (3) to move longitudinally when the inclination angle of the screen box (2) changes.

2. A fixed feed box structure capable of adapting to the angle change of the electromagnetic screen according to claim 1, characterized in that: The slide seat (3) comprises: A transverse plate (3-1), the transverse slide groove (6) being arranged on the transverse plate (3-1); A longitudinal plate (3-2), the longitudinal slide groove (7) being arranged on the longitudinal plate (3-2), and the longitudinal plate (3-2) being arranged perpendicularly to the transverse plate (3-1).

3. A fixed feed box structure capable of adapting to the angle change of the electromagnetic screen according to claim 2, characterized in that: It also comprises a supporting rib plate (8), wherein the supporting rib plate (8) is arranged between the transverse plate (3-1) and the longitudinal plate (3-2).

4. A fixed feed box structure capable of adapting to the angle change of the electromagnetic screen according to claim 3, characterized in that: The supporting rib plate (8), the transverse plate (3-1) and the longitudinal plate (3-2) are an integrally formed structure.

5. A fixed feed box structure capable of adapting to the angle change of the electromagnetic screen according to claim 2, characterized in that: Also includes, A transverse locking bolt (9), wherein the transverse locking bolt (9) is inserted into the transverse sliding groove (6); A transverse locking nut (10), the transverse locking nut (10) being threadedly connected to the transverse locking bolt (9), the bottom of the transverse support seat (4) being provided with a transverse positioning plate (4-1), the transverse locking bolt (9) being plugged into the transverse positioning plate (4-1), the transverse positioning plate (4-1) and the transverse plate (3-1) being clamped between the nut of the transverse locking bolt (9) and the transverse locking nut (10).

6. A fixed feed box structure capable of adapting to the angle change of the electromagnetic screen according to claim 5, characterized in that: The number of the transverse locking bolts (9) is at least two, all of the transverse locking bolts (9) are arranged along the length direction of the transverse sliding groove (6), and each of the transverse locking bolts (9) is provided with a transverse locking nut (10).

7. A fixed feed box structure capable of adapting to the angle change of the electromagnetic screen according to claim 5, characterized in that: The lateral support seat (4) further comprises: A transverse support plate (4-2), wherein the transverse support plate (4-2) is arranged on the transverse positioning plate (4-1); A transverse positioning sleeve (4-3), wherein the transverse positioning sleeve (4-3) is arranged on the transverse supporting plate (4-2), and the transverse positioning sleeve (4-3) is used to be arranged on the feed box (1).

8. The fixed feed box structure capable of adapting to the angle change of the electromagnetic screen according to claim 2, characterized in that: Also includes, A longitudinal locking bolt (11), wherein the longitudinal locking bolt (11) is inserted into the longitudinal sliding groove (7); A longitudinal locking nut (12), the longitudinal locking nut (12) being threadedly connected to the longitudinal locking bolt (11), the bottom of the longitudinal support seat (5) being provided with a longitudinal positioning plate (5-1), the longitudinal locking bolt (11) being plugged into the longitudinal positioning plate (5-1), the longitudinal positioning plate (5-1) and the longitudinal plate (3-2) being clamped between the nut of the longitudinal locking bolt (11) and the longitudinal locking nut (12).

9. A fixed feed box structure capable of adapting to the angle change of the electromagnetic screen according to claim 8, characterized in that: The number of the longitudinal locking bolts (11) is at least two, all of the longitudinal locking bolts (11) are arranged along the length direction of the longitudinal slide groove (7), and each of the longitudinal locking bolts (11) is provided with a longitudinal locking nut (12).

10. A fixed feed box structure capable of adapting to the angle change of the electromagnetic screen according to claim 8, characterized in that: The longitudinal support seat (5) further comprises: A longitudinal support plate (5-2), wherein the longitudinal support plate (5-2) is arranged on the longitudinal positioning plate (5-1); A longitudinal positioning sleeve (5-3), wherein the longitudinal positioning sleeve (5-3) is arranged on the longitudinal support plate (5-2), and the longitudinal positioning sleeve (5-3) is used to be arranged on the screen box (2).

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