Combined rolling mill guide and guard device

Abstract

The utility model provides a combined rolling mill guiding and guarding device which comprises a feeding guiding assembly and a guiding assembly, the feeding guiding assembly comprises a feeding frame, a feeding channel is arranged in the feeding frame, the upper end face of the feeding channel is obliquely arranged, a guiding plate is arranged on the inner side face of the feeding channel, and the guiding plate is detachably connected with the feeding frame; the discharging guide assembly comprises a discharging frame, the discharging frame comprises an upper guide plate and two side plates, the lower ends of the side plates are connected through a connecting rod, the upper ends of the side plates are connected through a second hinge shaft, and the upper guide plate is hinged to the second hinge shaft. The steel billet feeding device has the advantages that steel billets enter the feeding channel, enter the position between the two rollers, are rolled and then enter the discharging channel, the discharging channel is defined by the upper guide plate, the steel billets are guided, the steel billets are prevented from being wound around the upper rollers, and the steel billets are prevented from being wound around the upper rollers. And the hinged arrangement of the upper guide plate can ensure that one end of the upper guide plate always contacts with the upper roller, so that the application range of the device is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel production equipment, and particularly relates to a combined rolling mill guide device. Background Art

[0002] The hot-rolled strip market, especially the narrow strip market, is extremely hot abroad. The demand for narrow strip steel in some developing countries has also been soaring. During the rolling process of narrow strip steel, a short-stress two-high rolling mill is required. The efficient rolling mill guide is the core process of rolling strip steel. The rolling mill is equipped with a guide device. The following problems exist in the current use of the guide device: First, the replacement of the guide plate is not convenient. The guide plate will be worn after multiple uses, and the production efficiency is affected by the shutdown for replacement; Second, the steel billet is likely to wind around the roll on the discharge side of the roll, making the rolled steel strip unable to enter the discharge guide assembly, and the work efficiency is affected by the shutdown for maintenance. Content of the Utility Model

[0003] In view of this, the utility model aims to provide a combined rolling mill guide device in order to solve at least one of the above partial technical problems.

[0004] To achieve the above object, the technical solution of the utility model is realized as follows:

[0005] A combined rolling mill guide device includes:

[0006] A feed guide assembly, the feed guide assembly includes a feed frame, a feed channel is arranged in the feed frame, the upper end surface of the feed channel is inclined, a guide plate is arranged on the inner side surface of the feed channel, and the guide plate is detachably connected with the feed frame;

[0007] A discharge guide assembly, the discharge guide assembly includes a discharge frame, the discharge frame includes an upper guide plate and two side plates, the lower ends of the side plates are connected by a connecting rod, the upper ends are connected by a second hinge shaft, and the upper guide plate is hinged with the second hinge shaft.

[0008] Furthermore, the feed frame includes a bottom plate, vertical plates, and a top plate. The bottom plate is detachably connected with the rolling mill through a first dovetail tenon. The lower ends of the two vertical plates are fixedly connected with the bottom plate. The two ends of the top plate are respectively fixedly connected with the upper ends of the two vertical plates. The top plate is inclined. One end of the top plate close to the discharge port of the feed channel is lower than one end of the top plate close to the feed port of the feed channel;

[0009] The guide plate includes an upper guide plate, a hanging plate is arranged on the upper guide plate. One end of the hanging plate close to the feed port of the feed channel is bent downward and fixedly connected with the upper guide plate. The distance between the hanging plate and the upper guide is matched with the thickness of the top plate. One end of the hanging plate close to the discharge port of the feed channel is bent downward;

[0010] One end of the top plate near the feed inlet of the feed channel is provided with a positioning groove matching the hanging plate, and the downwardly bent part of the hanging plate is located inside the positioning groove;

[0011] One end of the upper guide plate near the feed inlet of the feed channel is bent upward to form a first guiding part.

[0012] Furthermore, the guide plate includes a lower guide plate. Plug posts are fixedly arranged on the lower end surface of the guide plate, and plug holes matching the plug posts are formed on the bottom plate. The plug posts are installed inside the plug holes.

[0013] Furthermore, the guide plate includes two vertical guide plates. The vertical guide plates are installed inside the feed channel, and the positions of the vertical guide plates correspond to those of the vertical plates. Threaded holes are formed on the vertical guide plates, and through holes I corresponding to the threaded holes are formed on the vertical plates. Connecting bolts are arranged inside the through holes I, and the connecting bolts penetrate through the through holes I and are threadedly connected with the vertical guide plates;

[0014] One end of the vertical guide plate near the discharge outlet of the feed channel is bent away from the feed channel to form a second guiding part.

[0015] Furthermore, a cushion plate is arranged between the vertical guide plate and the side plate. Through holes II corresponding to the threaded holes are formed on the cushion plate, and the connecting bolts are located inside the through holes II;

[0016] There are various types of cushion plates, and the thicknesses of different types of cushion plates are different, which are suitable for steel billets of different widths.

[0017] Furthermore, a scraper is arranged on the top plate. A wear-resistant plate is fixedly arranged at one end of the scraper near the discharge outlet of the feed channel. The wear-resistant plate is detachably connected with the scraper. The wear-resistant plate contacts the upper roll. A first counterweight block is arranged at the other end of the scraper. The first hinge shaft at the middle end of the scraper is hinged with the hinge plate on the top plate.

[0018] Furthermore, one end of the upper guide plate near the feed guiding assembly contacts the upper roll, and a second counterweight block is fixedly arranged at the end of the upper guide plate far from the feed guiding assembly.

[0019] The upper edges and lower edges at one end of the upper guide plate near the feed guiding assembly adopt a chamfer structure.

[0020] Furthermore, a second dovetail tenon is fixedly arranged at the lower end of the side plate. The discharge guiding assembly is detachably connected with the rolling mill through the second dovetail tenon.

[0021] Further, a discharge tongue plate is provided on the connecting rod. The number of the connecting rods is multiple, and the connecting rods are round rods. The discharge tongue plate includes a first discharge tongue plate and a second discharge tongue plate. A mounting groove matching the connecting rod is formed at the lower end of the first discharge tongue plate. The connecting rod closest to the feed guiding assembly is located inside the mounting groove of the first discharge tongue plate. One end of the first discharge tongue plate close to the feed guiding assembly contacts the lower roller, and the other end of the first discharge tongue plate contacts the second discharge tongue plate. A plurality of mounting grooves are provided at the lower end of the second discharge tongue plate.

[0022] Further, both the guiding plate and the upper guiding plate are structural members made of wear-resistant steel.

[0023] Compared with the prior art, the combined rolling mill guide device of the present invention has the following beneficial effects:

[0024] In the combined rolling mill guide device of the present invention, the billet enters the feed channel. The discharge end of the feed channel corresponds to the gap position between the two rollers. After the billet enters between the two rollers and is rolled, it enters the discharge channel. The upper guiding plate not only encloses to form the discharge channel to guide the billet, but also plays a role in preventing the billet from winding around the upper roller. Moreover, the hinged setting of the upper guiding plate can ensure that one end of the upper guiding plate always contacts the upper roller, expanding the application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0026] Figure 1 is a schematic three-dimensional structure diagram of the device according to the embodiment of the present invention;

[0027] Figure 2 is a schematic three-dimensional structure diagram of the feed guiding assembly according to the embodiment of the present invention;

[0028] Figure 3 is a schematic three-dimensional structure diagram of the feed frame according to the embodiment of the present invention;

[0029] Figure 4 is a schematic three-dimensional structure diagram of the upper guiding plate according to the embodiment of the present invention;

[0030] Figure 5 is a schematic three-dimensional structure diagram of the lower guiding plate according to the embodiment of the present invention;

[0031] Figure 6 is a schematic three-dimensional structure diagram of the vertical guiding plate according to the embodiment of the present invention;

[0032] Figure 7 Schematic three-dimensional structure diagram of the discharge guiding assembly according to an embodiment of the present invention;

[0033] Figure 8 Schematic three-dimensional structure diagram of the discharge frame according to an embodiment of the present invention;

[0034] Figure 9 Schematic three-dimensional structure diagram of the first discharge tongue plate according to an embodiment of the present invention;

[0035] Figure 10 Schematic three-dimensional structure diagram of the second discharge tongue plate according to an embodiment of the present invention;

[0036] Figure 11 Schematic sectional structure diagram of the device according to an embodiment of the present invention;

[0037] Figure 12 For the embodiment of the present invention Figure 11 Three-dimensional schematic diagram at position A.

[0038] Explanation of reference numerals:

[0039] 1. Roller; 2. Feed guiding assembly; 3. Discharge guiding assembly; 201. Feed frame; 202. Upper guiding plate; 203. Lower guiding plate; 204. Vertical guiding plate; 205. Scraper; 206. Pad; 207. Connecting bolt; 20101. First dovetail tenon; 20102. Top plate; 20103. Vertical plate; 20104. Bottom plate; 20105. Hinge plate; 20106. Jack; 20107. Positioning groove; 20108. First through hole; 20201. Hanging plate; 20202. First guiding portion; 20301. Insertion post; 20401. Second through hole; 20402. Second guiding portion; 20501. Wear-resistant plate; 20502. First counterweight; 301. Discharge frame; 302. Upper guide plate; 303. First discharge tongue plate; 304. Second discharge tongue plate; 305. Second counterweight; 306. Second hinge shaft; 30101. Side plate; 30102. Connecting rod; 30103. Second dovetail tenon. Detailed implementation manners

[0040] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0041] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0042] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0043] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0044] As Figures 1 to 12 shown, a combined rolling mill guide device includes:

[0045] A feed guiding assembly 2, which includes a feed frame 201. A feed channel is provided inside the feed frame 201. The upper end face of the feed channel is inclined. A guide plate is provided on the inner side surface of the feed channel, and the guide plate is detachably connected to the feed frame 201; A discharge guiding assembly 3, which includes a discharge frame 301. The discharge frame 301 includes an upper guide plate 302 and two side plates 30101. The lower ends of the side plates 30101 are connected by a connecting rod 30102, and the upper ends are connected by a second hinge shaft 306. The upper guide plate 302 is hinged to the second hinge shaft 306.

[0046] The feeding frame 201 includes a bottom plate 20104, vertical plates 20103, and a top plate 20102. The bottom plate 20104 is detachably connected to the rolling mill through a first dovetail tenon 20101. The lower ends of the two vertical plates 20103 are fixedly connected to the bottom plate 20104. The two ends of the top plate 20102 are respectively fixedly connected to the upper ends of the two vertical plates 20103. The top plate 20102 is inclined, and the end of the top plate 20102 close to the discharge port of the feeding channel is lower than the end of the top plate 20102 close to the feeding port of the feeding channel; the feeding port of the feeding channel corresponds to the position of the gap between the two rolling rolls 1.

[0047] The guiding plate includes an upper guiding plate 202. A hanging plate 20201 is provided on the upper guiding plate 202. The end of the hanging plate 20201 close to the feeding port of the feeding channel is bent downward and fixedly connected to the upper guiding plate 202. The distance between the hanging plate 20201 and the upper guiding plate is matched with the thickness of the top plate 20102. The end of the hanging plate 20201 close to the discharge port of the feeding channel is bent downward. The arrangement of the hanging plate 20201 facilitates the installation of the upper guiding plate 202.

[0048] A positioning groove 20107 matching the hanging plate 20201 is formed at the end of the top plate 20102 close to the feeding port of the feeding channel. The downwardly bent part of the hanging plate 20201 is located inside the positioning groove 20107. The positioning groove 20107 positions the hanging plate 20201 and improves the installation efficiency;

[0049] The end of the upper guiding plate 202 close to the feeding port of the feeding channel is bent upward to form a first guiding portion 20202, and the first guiding portion 20202 plays a guiding role.

[0050] The guiding plate includes a lower guiding plate 203. Plug posts 20301 are fixedly provided on the lower end surface of the guiding plate. Plug holes 20106 matching the plug posts 20301 are formed on the bottom plate 20104. The plug posts 20301 are installed inside the plug holes 20106. The plug holes 20106 position the lower guiding plate 203 and facilitate the replacement and positioning of the lower guiding plate 203.

[0051] The guiding plate includes two vertical guiding plates 204. The vertical guiding plates 204 are installed on the inner side of the feeding channel. The positions of the vertical guiding plates 204 correspond to those of the vertical plates 20103. Threaded holes are formed on the vertical guiding plates 204, and through holes 20108 corresponding to the threaded holes are formed on the vertical plates 20103. Connecting bolts 207 are arranged in the through holes 20108, and the connecting bolts 207 penetrate through the through holes 20108 and are threadedly connected with the vertical guiding plates 204. One end of the vertical guiding plate 204 near the discharge port of the feeding channel is bent away from the feeding channel to form a second guiding portion 20402, and the second guiding portion 20402 plays a guiding role. A backing plate 206 is arranged between the vertical guiding plate 204 and the side plate 30101. Through holes 20401 corresponding to the threaded holes are formed on the backing plate 206, and the connecting bolts 207 are located inside the through holes 20401. There are various models of the backing plate 206, and different models of the backing plate 206 have different thicknesses, which are suitable for billets of different widths. The backing plate 206 with different thicknesses is installed according to the width of the billet, broadening the applicable range of the device. The vertical guiding plate 204 is detachably connected to the feeding frame 201 through the connecting bolts 207.

[0052] A scraper 205 is arranged on the top plate 20102. A wear-resistant plate 20501 is fixedly arranged at one end of the scraper 205 near the discharge port of the feeding channel. The wear-resistant plate 20501 is detachably connected to the scraper 205. The wear-resistant plate 20501 contacts the upper roll 1. A first counterweight 20502 is arranged at the other end of the scraper 205. The first hinge shaft in the middle of the scraper 205 is hinged to the hinge plate 20105 on the top plate 20102. The wear-resistant plate 20501 plays a role in scraping the upper roll 1 clean. In some embodiments, taking the first hinge shaft as a line, the weight of the end of the scraper 205 with the first counterweight 20502 is lower than that of the other end, so that one end of the upper guiding plate 302 near the feeding guiding assembly 2 always contacts the upper roll 1. In some other embodiments, the end of the scraper 205 away from the upper roll 1 is connected to the discharge frame 301 through a tension spring.

[0053] One end of the upper guiding plate 302 near the feeding guiding assembly 2 contacts the upper roll 1. In some embodiments, a second counterweight 305 is fixedly arranged at the end of the upper guiding plate 302 away from the feeding guiding assembly 2. Taking the second hinge shaft 306 as a line, the weight of the end of the upper guiding plate 302 near the feeding guiding assembly 2 is lower than that of the other end, so that one end of the upper guiding plate 302 near the feeding guiding assembly 2 always contacts the upper roll 1, which not only plays a role in guiding the discharge of the billet, but also can scrape the upper roll 1 clean, press closely against the roll 1, and prevent the steel from winding around the upper roll 1. The hinged setting of the upper guiding plate 302 enables it to still contact the upper roll 1 when the distance between the upper roll 1 and the lower roll 1 changes, broadening the applicable range of the device.

[0054] In some other embodiments, one end of the upper guide plate 302 away from the feeding guide assembly 2 is connected to the discharge frame 301 through a tension spring. The upper and lower edges of the end of the upper guide plate 302 close to the feeding guide assembly 2 adopt a chamfer structure, and the chamfer structure can fit the upper roller 1.

[0055] The upper guide plate 302, the side plate 30101, and the discharge tongue plate enclose to form a discharge channel.

[0056] A second dovetail tenon 30103 is fixedly provided at the lower end of the side plate 30101, and the discharge guide assembly 3 is detachably connected to the rolling mill through the second dovetail tenon 30103, which improves the replacement efficiency.

[0057] A discharge tongue plate is provided on the connecting rod 30102. The number of the connecting rods 30102 is multiple. The connecting rods 30102 are round rods. The discharge tongue plate includes a first discharge tongue plate 303 and a second discharge tongue plate 304. An installation groove matching with the connecting rod 30102 is opened at the lower end of the first discharge tongue plate 303. The connecting rod 30102 closest to the feeding guide assembly 2 is located inside the installation groove of the first discharge tongue plate 303. One end of the first discharge tongue plate 303 close to the feeding guide assembly 2 contacts the lower roller 1. The other end of the first discharge tongue plate 303 contacts the second discharge tongue plate 304. A plurality of installation grooves are provided at the lower end of the second discharge tongue plate 304. The first discharge tongue plate 303 can rotate along the connecting rod 30102 and contacts the lower roller 1, which plays a role in scraping the lower roller 1 clean. The first discharge tongue plate 303 and the second discharge tongue plate 304 are detachably connected to the discharge frame 301, which is convenient for replacement and maintenance.

[0058] The upper guide plate 202, the lower guide plate 203, the vertical guide plate 204, the upper guide plate 302, the first discharge tongue plate 303, and the second discharge tongue plate 304 are all structural parts made of wear-resistant steel, which improves the service life of the device. Moreover, the upper guide plate 202, the lower guide plate 203, and the vertical guide plate 204 are detachably connected to the feeding frame 201, and the wear-resistant plate 20501 is detachably connected to the hanging plate 20201, which is convenient for replacement and improves the working efficiency. The wear-resistant plate 20501 is a structural part made of nylon material. During work, the first counterweight 20502 at the tail presses the wear-resistant plate 20501 against the roller 1, which plays a role in sealing water and prevents cooling water from dropping onto the hot steel.

[0059] Working process:

[0060] During the implementation of this solution, the second guiding part 20402 guides the side surface of the billet, and the first guiding part 20202 guides the upper end surface of the billet, enabling the billet to smoothly enter the feeding channel. The discharging end of the feeding channel corresponds to the gap position between the two rolling rolls 1. After passing through rolling between the two rolling rolls 1, the billet enters the discharging channel. The upper guide plate 302 not only encloses to form the discharging channel, but also plays a role in preventing the billet from winding around the rolling roll 1. Moreover, the hinged setting of the upper guide plate 302 can ensure that one end of the upper guide plate 302 is always in contact with the upper rolling roll 1, broadening the application range of the device.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

[0062] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A combined rolling mill guide device, characterized in that: include: A feed guide assembly (2), the feed guide assembly (2) comprising a feed frame (201), a feed channel being arranged in the feed frame (201), the upper end surface of the feed channel being arranged at an angle, a guide plate being arranged on the inner side surface of the feed channel, and the guide plate being detachably connected to the feed frame (201); A discharge guide assembly (3), wherein the discharge guide assembly (3) comprises a discharge frame (301), wherein the discharge frame (301) comprises an upper guide plate (302) and two side plates (30101), wherein the lower ends of the side plates (30101) are connected via a connecting rod (30102), and the upper ends are connected via a second hinge shaft (306), wherein the upper guide plate (302) is hinged to the second hinge shaft (306), and one end of the upper guide plate (302) is in contact with an upper roller.

2. A combined rolling mill guide device according to claim 1, characterized in that: The feed frame (201) comprises a bottom plate (20104), a vertical plate (20103), and a top plate (20102); the bottom plate (20104) is detachably connected to the rolling mill via a first dovetail joint (20101); the lower ends of the two vertical plates (20103) are fixedly connected to the bottom plate (20104); the two ends of the top plate (20102) are respectively fixedly connected to the upper ends of the two vertical plates (20103); the top plate (20102) is tilted, and one end of the top plate (20102) adjacent to the discharge port of the feed channel is lower than one end of the top plate (20102) adjacent to the feed port of the feed channel; The guide plate comprises an upper guide plate (202), a hanging plate (20201) is provided on the upper guide plate (202), one end of the hanging plate (20201) adjacent to the feed port of the feed channel is bent downward and fixedly connected to the upper guide plate (202), the distance between the hanging plate (20201) and the upper guide matches the thickness of the top plate (20102), and one end of the hanging plate (20201) adjacent to the feed port of the feed channel is bent downward; A positioning groove (20107) matching the hanging plate (20201) is formed at one end of the top plate (20102) adjacent to the feeding port of the feeding channel, and a downwardly bent portion of the hanging plate (20201) is located inside the positioning groove (20107); One end of the upper guide plate (202) adjacent to the feed port of the feed channel is bent upward to form a first guide portion (20202).

3. A combined rolling mill guide device according to claim 2, characterized in that: The guide plate comprises a lower guide plate (203), a plug post (20301) is fixedly provided on the lower end surface of the guide plate, a socket (20106) matching the plug post (20301) is opened on the bottom plate (20104), and the plug post (20301) is installed on the inner side of the socket (20106).

4. A combined rolling mill guide device according to claim 2, characterized in that: The guide plate comprises two vertical guide plates (204), the vertical guide plates (204) are installed on the inner side of the feed channel, the vertical guide plates (204) correspond to the positions of the vertical plates (20103), the vertical guide plates (204) are provided with threaded holes, the vertical plates (20103) are provided with through holes (20108) corresponding to the threaded holes, the through holes (20108) are provided with connecting bolts (207), and the connecting bolts (207) pass through the through holes (20108) and are threadedly connected to the vertical guide plates (204); One end of the vertical guide plate (204) adjacent to the discharge port of the feed channel is bent away from the feed channel to form a second guide portion (20402).

5. A combined rolling mill guide device according to claim 4, characterized in that: A backing plate (206) is provided between the vertical guide plate (204) and the side plate (30101), and a second through hole (20401) corresponding to the threaded hole is opened on the backing plate (206), and the connecting bolt (207) is located on the inner side of the second through hole (20401); There are multiple models of the backing plate (206), and the backing plates (206) of different models have different thicknesses and are suitable for steel billets of different widths.

6. A combined rolling mill guide device according to claim 2, characterized in that: A scraper (205) is provided on the top plate (20102), and a wear-resistant plate (20501) is fixedly provided at one end of the scraper (205) adjacent to the discharge port of the feed channel, and the wear-resistant plate (20501) is detachably connected to the scraper (205), and the wear-resistant plate (20501) is in contact with the upper roller (1). A first counterweight (20502) is provided at the other end of the scraper (205), and a first hinge shaft at the middle end of the scraper (205) is hinged to the hinge plate (20105) on the top plate (20102).

7. The combined rolling mill guide device according to claim 1, characterized in that: One end of the upper guide plate (302) adjacent to the feed guide assembly (2) contacts the upper roller (1), and one end of the upper guide plate (302) away from the feed guide assembly (2) is fixedly provided with a second counterweight (305); The upper edge and the lower edge of the upper guide plate (302) adjacent to one end of the feed guide assembly (2) adopt a chamfered structure.

8. The combined rolling mill guide device according to claim 1, characterized in that: A second dovetail tenon (30103) is fixedly provided at the lower end of the side plate (30101), and the discharge guide assembly (3) is detachably connected to the rolling mill via the second dovetail tenon (30103).

9. The combined rolling mill guide device according to claim 1, characterized in that: The connecting rod (30102) is provided with a discharge tongue plate, the number of the connecting rods (30102) is multiple, the connecting rods (30102) are round rods, the discharge tongue plates include a first discharge tongue plate (303) and a second discharge tongue plate (304), the lower end of the first discharge tongue plate (303) is provided with a mounting groove matching the connecting rod (30102), the connecting rod (30102) closest to the feed guide assembly (2) is located on the inner side of the mounting groove of the first discharge tongue plate (303), one end of the first discharge tongue plate (303) adjacent to the feed guide assembly (2) contacts the lower roller (1), the other end of the first discharge tongue plate (303) contacts the second discharge tongue plate (304), and the lower end of the second discharge tongue plate (304) is provided with multiple mounting grooves.

10. The combined rolling mill guide device according to claim 1, characterized in that: The guide plate and the upper guide plate (302) are both structural parts made of wear-resistant steel.

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