Continuous extrusion die

Abstract

The embodiment of the utility model provides a continuous extrusion die, and relates to the technical field of metal material processing. The continuous extrusion die comprises a flow dividing die frame and a flow dividing material stopping block, a welding cavity is formed in one side of the flow dividing die frame, a feeding channel is formed in the welding cavity, and the feeding channel penetrates through the other side of the flow dividing die frame. The flow dividing material blocking block is arranged on the side, away from the welding-on cavity, of the flow dividing die frame and provided with a first flow dividing bridge, the first flow dividing bridge is arranged in the feeding channel so that the feeding channel can be divided into a first feeding channel and a second feeding channel, and the first feeding channel and the second feeding channel both communicate with the welding-on cavity. According to the continuous extrusion die, the production efficiency can be improved, the cost can be reduced, meanwhile, the difference between a welding area and base metal can be reduced, the welding seam condition is reduced, and the welding quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal material processing technical field, specifically, relate to a continuous extrusion die. BACKGROUND

[0002] In metal material processing, usually uses extrusion die to carry out continuous extrusion to metal billet to form metal plate and other shape structure. For the continuous extrusion production wide metal plate, since its edge portion is difficult to shape, the prior art usually adopts the way of double billet welding, that is, adopts one round two groove extrusion wheel, and simultaneously feeds two billets to carry out wide plate extrusion.

[0003] However, adopting this double billet welding way, there is the problem of low production efficiency and high cost, and the difference between the welding area and the base material is large, and the metal plate will have welds in the generation process, which affects the welding quality. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a continuous extrusion die, which can improve production efficiency and reduce cost, at the same time, can reduce the difference between the welding area and the base material, reduce the occurrence of welds, and improve the welding quality.

[0005] The embodiment of the utility model is realized as follows:

[0006] In a first aspect, the utility model provides a continuous extrusion die, which comprises:

[0007] The shunt die frame is provided with a welding cavity on one side, a feeding channel is formed in the welding cavity, and the feeding channel penetrates the other side of the shunt die frame; and

[0008] The shunt die frame is provided with a welding cavity on one side, a feeding channel is formed in the welding cavity, and the feeding channel penetrates the other side of the shunt die frame; and

[0009] In an optional embodiment, the shunt die frame is further provided with a second shunt bridge, the second shunt bridge is arranged in the feeding channel and located on the side of the first shunt bridge close to the welding cavity; the first shunt bridge and the second shunt bridge abut and are used together to separate the feeding channel into the first feeding channel and the second feeding channel.

[0010] In an optional embodiment, the shunt die frame is further provided with a second shunt bridge, the second shunt bridge is arranged in the feeding channel and located on the side of the first shunt bridge close to the welding cavity; the first shunt bridge and the second shunt bridge abut and are used together to separate the feeding channel into the first feeding channel and the second feeding channel.

[0011] In an optional embodiment, the flow distribution die holder further has a first installation slot, which is located on a side of the flow distribution die holder away from the welding cavity, and which is in communication with the first feeding channel and the second feeding channel; and the flow distribution block is arranged in the first installation slot.

[0012] In an optional embodiment, the continuous extrusion die further has a welding die plate, which is arranged on a side of the flow distribution die holder close to the welding cavity, and which has a welding channel in communication with the welding cavity;

[0013] The welding die plate is provided with a first flow resistance block and a second flow resistance block, which are respectively arranged on two opposite side walls of the welding channel and are arranged in a first direction; the welding channel is provided with a first flow promoting inclined surface and a second flow promoting inclined surface, which are arranged in a second direction and are arranged on a side of the welding channel away from the flow distribution die holder;

[0014] The first direction and the second direction form an angle.

[0015] In an optional embodiment, the continuous extrusion die further has an expansion die plate, which is arranged on a side of the welding die plate away from the flow distribution die holder, and which has an expansion channel in communication with the welding channel;

[0016] The expansion die plate is provided with a third flow resistance block and a fourth flow resistance block, which are respectively arranged on two opposite side walls of the expansion channel and are arranged in the first direction, the third flow resistance block abuts against the first flow resistance block, and the fourth flow resistance block abuts against the second flow resistance block; the expansion channel is provided with a third flow promoting inclined surface and a fourth flow promoting inclined surface, which are arranged in the second direction and are arranged on a side of the expansion channel away from the welding die plate;

[0017] The first flow promoting inclined surface and the second flow promoting inclined surface are located between the third flow promoting inclined surface and the fourth flow promoting inclined surface.

[0018] In an optional embodiment, the continuous extrusion die further has a pressure boosting die plate, which is arranged on a side of the expansion die plate away from the welding die plate, and which has a first pressure boosting channel and a second pressure boosting channel, the first pressure boosting channel is arranged close to the expansion channel, and the expansion channel, the first pressure boosting channel and the second pressure boosting channel are in sequence in communication.

[0019] The first pressurizing channel has a size greater than that of the second pressurizing channel.

[0020] In an optional embodiment, the continuous extrusion die further comprises a sizing die plate, which is arranged on the side of the pressurizing die plate away from the expansion die plate, and the sizing die plate is provided with a sizing channel and a clearance channel, the sizing channel is arranged close to the second pressurizing channel, and the second pressurizing channel, the sizing channel and the clearance channel are sequentially communicated.

[0021] The size of the clearance channel gradually increases in the direction away from the sizing channel.

[0022] In an optional embodiment, the continuous extrusion die further comprises a die seat, which is arranged on the side of the sizing die plate away from the pressurizing die plate, and the die seat is connected with the flow distribution die frame.

[0023] In an optional embodiment, the flow distribution die frame is further provided with a second mounting groove on the side close to the welding die plate, the bottom wall of the second mounting groove is provided with the welding cavity, and the welding die plate is arranged in the second mounting groove; and / or,

[0024] The die seat is provided with a third mounting groove, and the expansion die plate, the pressurizing die plate and the sizing die plate are arranged in the third mounting groove.

[0025] The beneficial effects of the embodiments of the utility model include:

[0026] The continuous extrusion die comprises a flow distribution die frame and a flow distribution material blocking block, one side of the flow distribution die frame is provided with a welding cavity, the welding cavity is provided with a feeding channel, and the feeding channel penetrates through the other side of the flow distribution die frame; the flow distribution material blocking block is arranged on the side of the flow distribution die frame away from the welding cavity, and the flow distribution material blocking block is provided with a first flow distribution bridge, the first flow distribution bridge is arranged in the feeding channel to separate the feeding channel into a first feeding channel and a second feeding channel, and the first feeding channel and the second feeding channel are communicated with the welding cavity.

[0027] Through the setting of the shunt bridge, the blank can be shunted, and respectively enters the welding cavity from the first feeding channel and the second feeding channel, so that the continuous extrusion production of the metal plate with larger width is met, and the edge part is ensured to be formed. It is easy to understand that the continuous extrusion die adopts a blank shunt welding mode, compared with the double blank welding mode, the universality is good, the extrusion wheel does not need to be replaced, the production efficiency can be improved and the cost can be reduced. Meanwhile, the welding cavity is close to the shunt blocking piece, that is, the shunt and welding positions of the blank are close to the shunt blocking piece, according to the continuous extrusion principle, the shunt blocking piece is the region with the highest deformation temperature in the whole continuous extrusion process, and the shunt welding close to the shunt blocking piece helps to reduce the difference between the welding zone and the base material, thereby reducing the occurrence of the welding seam and improving the welding quality. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0029] Figure 1 The structure schematic diagram of the continuous extrusion die provided by the embodiments of the present application is shown in the figure.

[0030] Figure 2 The exploded view of the continuous extrusion die provided by the embodiments of the present application is shown in the figure.

[0031] Figure 3 The structure schematic diagram of the first perspective view of the shunt die holder provided by the embodiments of the present application is shown in the figure.

[0032] Figure 4 The structure schematic diagram of the second perspective view of the shunt die holder provided by the embodiments of the present application is shown in the figure.

[0033] Figure 5 The structure schematic diagram of the welding die provided by the embodiments of the present application is shown in the figure.

[0034] Figure 6 The structure schematic diagram of the expansion die provided by the embodiments of the present application is shown in the figure.

[0035] Figure 7 The structure schematic diagram of the booster die provided by the embodiments of the present application is shown in the figure.

[0036] Figure 8 The structure schematic diagram of the sizing die provided by the embodiments of the present application is shown in the figure.

[0037] Figure 9The utility model provides a structure schematic view of die holder.

[0038] Icon: 100 - continuous extrusion die; 10 - split die holder; 11 - welding cavity; 12 - feed channel; 121 - first feed channel; 122 - second feed channel; 13 - second split bridge; 14 - first mounting slot; 15 - second mounting slot; 20 - split blocking block; 21 - first split bridge; 22 - blocking plug; 30 - welding template; 31 - welding channel; 32 - first resistance block; 33 - second resistance block; 34 - first flow promoting inclined surface; 35 - second flow promoting inclined surface; 40 - expansion template; 41 - expansion channel; 42 - third resistance block; 43 - fourth resistance block; 44 - third flow promoting inclined surface; 45 - fourth flow promoting inclined surface; 50 - booster template; 51 - first booster channel; 52 - second booster channel; 60 - sizing template; 61 - sizing channel; 62 - avoidance channel; 63 - avoidance inclined surface; 70 - die holder; 71 - third mounting slot. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0041] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0042] In the description of the utility model, it needs to be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0043] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0044] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0045] As described in the background, for continuous extrusion of a metal plate with a large width, since the edge part is difficult to shape, the prior art usually adopts a double-billet welding method, that is, a two-slot extrusion wheel is adopted, and two billets are simultaneously fed for wide plate extrusion.

[0046] However, the inventors have found that, according to the deformation characteristics of the continuous extrusion principle, the highest temperature of the billet occurs at the blocking block at the first feeding position, and the temperature decreases after passing through the blocking block. The metal plate will have a weld seam during the forming process, and the mechanical properties of the weld seam will be poorer than those of the base material, resulting in a large difference between the welding area and the base material, affecting the welding quality. Moreover, the same extruder needs to be replaced with an extrusion wheel, that is, a single-slot extrusion wheel needs to be replaced with a double-slot extrusion wheel, resulting in low production efficiency and high cost.

[0047] Based on this, please refer to Figures 1-9The embodiment of the utility model provides a kind of continuous extrusion die 100, can effectively improve the technical problem mentioned above, that is, it can improve production efficiency and reduce cost, simultaneously, can reduce the difference of welding area and base material, reduce the occurrence of weld condition, improve the welding quality.

[0048] It should be noted that the first direction mentioned in the following content is the X direction shown in Figures 1-9 The second direction is the Y direction shown in Figures 1-9 The third direction is the Z direction shown in Figures 1-9 The continuous extrusion die 100 will be described in detail below.

[0049] Please refer to Figure 1 And Figure 2 , Figure 1 The structure diagram of the continuous extrusion die 100 provided by the embodiment, Figure 2 The explosion view of the continuous extrusion die 100 provided by the embodiment, in combination with Figure 1 And Figure 2 , the continuous extrusion die 100 includes a flow distribution die holder 10 and a flow distribution material blocking block 20, the flow distribution material blocking block 20 is arranged on one side of the flow distribution die holder 10, which can distribute the blank, and then flow into the welding area of the flow distribution die holder 10.

[0050] Specifically, please refer to Figure 3 And Figure 4 , Figure 3 The first view structure diagram of the flow distribution die holder 10 provided by the embodiment, Figure 4 The second view structure diagram of the flow distribution die holder 10 provided by the embodiment, in combination with Figures 1-4 One side of the flow distribution die holder 10 is provided with a welding cavity 11, the welding cavity 11 is provided with a feeding channel 12, and the feeding channel 12 penetrates the other side of the flow distribution die holder 10; the flow distribution material blocking block 20 is arranged on the side of the flow distribution die holder 10 away from the welding cavity 11, and the flow distribution material blocking block 20 is provided with a first flow distribution bridge 21, the first flow distribution bridge 21 is arranged in the feeding channel 12, to separate the feeding channel 12 into a first feeding channel 121 and a second feeding channel 122, and the first feeding channel 121 and the second feeding channel 122 are communicated with the welding cavity 11.

[0051] That is, by the setting of the shunt bridge, the blank can be shunted, respectively from the first feeding channel 121 and the second feeding channel 122 into the welding cavity 11, so as to meet the continuous extrusion production of the metal plate with large width, and ensure the edge part forming. It is easy to understand that the continuous extrusion die 100 adopts a shunt welding mode of one blank, which has good versatility compared with the double-blank welding mode, does not need to replace the extrusion wheel, can improve the production efficiency and reduce the cost. At the same time, the welding cavity 11 is close to the shunt blocking piece 20, that is, the shunt and welding positions of the blank are close to the shunt blocking piece 20. According to the continuous extrusion principle, the shunt blocking piece 20 is the region with the highest deformation temperature in the whole continuous extrusion process. The shunt welding close to the shunt blocking piece 20 helps to reduce the difference between the welding zone and the base material, thereby reducing the occurrence of the weld condition and improving the welding quality.

[0052] Further, the shunt die holder 10 is also provided with a second shunt bridge 13, which is arranged in the feeding channel 12 and located on the side of the first shunt bridge 21 close to the welding cavity 11. The first shunt bridge 21 and the second shunt bridge 13 abut and are used together to separate the feeding channel 12 into the first feeding channel 121 and the second feeding channel 122. By arranging the second shunt bridge 13, the first shunt bridge 21 can abut to prevent the first shunt bridge 21 from breaking during the impact of the blank, thereby improving the die strength and ensuring the stability during the continuous extrusion and shunt process.

[0053] Please continue to combine Figure 1 and Figure 2 The shunt blocking piece 20 is also provided with a blocking plug 22 located on the side of the blocking piece away from the shunt die holder 10. During the continuous extrusion of the blank by the extruder, the rod-shaped blank will first hit the blocking plug 22 and undergo severe plastic deformation there, and then change the movement direction. Then the blank moves to the first shunt bridge 21, where the movement of the blank is again blocked, forcing it to shunt, thereby again undergoing severe plastic deformation, further improving the internal organization of the metal, and to some extent, improving the air bubble problem caused by the air brought in by the extruded coil, thereby further improving the subsequent welding quality.

[0054] Please combine Figure 2 and Figure 3 In order to facilitate the installation of the shunt blocking piece 20, in the embodiment, the shunt die holder 10 is also provided with a first installation slot 14 located on the side of the shunt die holder 10 away from the welding cavity 11. The first installation slot 14 is in communication with the first feeding channel 121 and the second feeding channel 122, and the shunt blocking piece 20 is arranged in the first installation slot 14.

[0055] Combine Figure 2In order to further weld, in the embodiment, the continuous extrusion die 100 further comprises a welding template 30, which is arranged on the side of the flow distribution die frame 10 close to the welding cavity 11, and the welding template 30 is provided with a welding channel 31, which is communicated with the welding cavity 11.

[0056] Specifically, please refer to Figure 5 , Figure 5 The structure diagram of the welding template 30 provided in the embodiment is shown in FIG. 4, which is combined with Figure 2 and Figure 5 The welding template 30 is provided with a first flow resistance block 32 and a second flow resistance block 33, which are respectively arranged on the two side walls of the welding channel 31 and are arranged in a first direction; the welding channel 31 is provided with a first flow promoting inclined surface 34 and a second flow promoting inclined surface 35, which are arranged in a second direction and are arranged on the side of the welding channel 31 away from the flow distribution die frame 10; wherein the first direction and the second direction form an angle.

[0057] It can be understood that by arranging the first flow resistance block 32 and the second flow resistance block 33 in the welding channel 31, the metal at the middle position of the channel can be further hindered to move to both sides, and then cooperate with the first flow promoting inclined surface 34 and the second flow promoting inclined surface 35, so as to realize the expansion deformation of the metal, thereby meeting the center deformation amount and edge forming of the metal plate.

[0058] Please continue to combine Figure 2 In order to continue the cavity shape of the welding template 30, the continuous extrusion die 100 further comprises an expansion template 40, which is arranged on the side of the welding template 30 away from the flow distribution die frame 10, and the expansion template 40 is provided with an expansion channel 41, which is communicated with the welding channel 31.

[0059] Specifically, please refer to Figure 6 , Figure 6 The structure diagram of the expansion template 40 provided in the embodiment is shown in FIG. 5, which is combined with Figure 2 , Figure 5 and Figure 6The extension template 40 is provided with a third flow blocking block 42 and a fourth flow blocking block 43, the third flow blocking block 42 and the fourth flow blocking block 43 are respectively arranged on the opposite two side walls of the extension channel 41 and are arranged in the first direction, the third flow blocking block 42 abuts against the first flow blocking block 32, and the fourth flow blocking block 43 abuts against the second flow blocking block 33; the extension channel 41 is provided with a third flow promoting inclined surface 44 and a fourth flow promoting inclined surface 45, the third flow promoting inclined surface 44 and the fourth flow promoting inclined surface 45 are arranged in the second direction and are spaced apart, and the third flow promoting inclined surface 44 and the fourth flow promoting inclined surface 45 are both arranged on the side of the extension channel 41 away from the welding template 30; wherein the first flow promoting inclined surface 34 and the second flow promoting inclined surface 35 are both located between the third flow promoting inclined surface 44 and the fourth flow promoting inclined surface 45.

[0060] It should be noted that when the mold is placed normally, the third flow blocking block 42 and the fourth flow blocking block 43 can be arranged to shrink the blank in the width direction, and by arranging the first flow promoting inclined surface 34 and the second flow promoting inclined surface 35 between the third flow promoting inclined surface 44 and the fourth flow promoting inclined surface 45, the blank can be expanded in the length direction, thereby extending the cavity shape of the welding template 30 and meeting the center deformation and edge forming of the metal plate.

[0061] In combination with Figure 1 and Figure 2 It should be noted that the blank is continuously extruded in the third direction through the welding cavity 11, the welding channel 31 and the extension channel 41, that is, the flow blocking block 20, the flow dividing die holder 10, the welding template 30 and the extension template 40 are arranged in the third direction; wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0062] In combination with Figure 2 In order to reduce the internal layering phenomenon of the final formed product, in the embodiment, the continuous extrusion die 100 further comprises a pressurizing template 50, the pressurizing template 50 is arranged on the side of the extension template 40 away from the welding template 30.

[0063] Specifically, referring to Figure 7 , Figure 7 The structure diagram of the pressurizing template 50 provided in the embodiment, in combination with Figure 2 and Figure 7 The pressurizing template 50 is provided with a first pressurizing channel 51 and a second pressurizing channel 52, the first pressurizing channel 51 is arranged close to the extension channel 41, and the extension channel 41, the first pressurizing channel 51 and the second pressurizing channel 52 are sequentially communicated; wherein the size of the first pressurizing channel 51 is greater than the size of the second pressurizing channel 52.

[0064] In combination with Figure 6 and Figure 7It should be noted that the overall shape of the first pressurizing channel 51 is basically consistent with the overall shape of the channel on the side of the pressurizing die plate 50, which can ensure the stability during extrusion; at the same time, the overall shape of the second pressurizing channel 52 is close to the shape of the product, and by setting the size of the first pressurizing channel 51 to be larger than the size of the second pressurizing channel 52, the metal blank can be further compressed, thereby reducing the internal layering phenomenon of the final shaped product and improving the product quality.

[0065] Please continue to combine Figure 2 In the embodiment, the continuous extrusion die 100 further comprises a sizing die plate 60, which is arranged on the side of the pressurizing die plate 50 away from the expansion die plate 40; by arranging the sizing die plate 60, the final product can be extruded.

[0066] Specifically, please refer to Figure 8 , Figure 8 The structure diagram of the sizing die plate 60 provided in the embodiment is shown in combination with Figure 2 and Figure 8 The sizing die plate 60 is provided with a sizing channel 61 and a clearance channel 62, the sizing channel 61 is arranged close to the second pressurizing channel 52, and the second pressurizing channel 52, the sizing channel 61 and the clearance channel 62 are sequentially communicated; wherein the size of the clearance channel 62 gradually increases away from the sizing channel 61.

[0067] As shown in Figure 8 , specifically, the side of the sizing die plate 60 away from the pressurizing die plate 50 is provided with a clearance inclined surface 63, which forms a clearance channel 62 around. By setting the size of the clearance channel 62 to gradually increase away from the sizing channel 61, that is, the sizing die plate 60 is provided with a clearance inclined surface 63, so that the product is not easy to contact with other structures of the sizing die plate 60 after extending from the sizing channel 61, thereby reducing the surface scratching of the product and further improving the product quality.

[0068] Please continue to combine Figure 2 The continuous extrusion die 100 further comprises a die holder 70, which is arranged on the side of the sizing die plate 60 away from the pressurizing die plate 50, and the die holder 70 is connected with the flow distribution die holder 10. By connecting the die holder 70 with the flow distribution die holder 10, the welding die plate 30, the expansion die plate 40, the pressurizing die plate 50 and the sizing die plate 60 are fixed as a whole.

[0069] Specifically, please refer to Figure 9 , Figure 9 The structure diagram of the die holder 70 provided in the embodiment is shown in combination with Figure 2 and Figure 9The third installation groove 71 is arranged on the die seat 70, and the expansion die plate 40, the press-in die plate 50 and the sizing die plate 60 are arranged in the third installation groove 71, so that the expansion die plate 40, the press-in die plate 50 and the sizing die plate 60 are conveniently installed and fixed, the overall volume of the continuous extrusion die 100 is reduced, and space is saved.

[0070] Further, please combine Figure 2 and Figure 4 In order to conveniently install the welding die plate 30, the second installation groove 15 is further arranged on the side, close to the welding die plate 30, of the shunt die frame 10, the bottom wall of the second installation groove 15 is provided with the welding cavity 11, and the welding die plate 30 is arranged in the second installation groove 15. It can be easily understood that, by arranging the welding die plate 30 in the second installation groove 15, the overall volume of the continuous extrusion die 100 can also be reduced, and space is further saved.

[0071] In summary, the embodiment of the utility model provides a kind of continuous extrusion die 100, and the continuous extrusion die 100 includes shunt die frame 10 and shunt material block 20, and the welding cavity 11 is arranged on the side of shunt die frame 10, and the welding cavity 11 is provided with feed passage 12, and feed passage 12 penetrates the other side of shunt die frame 10;Shunt material block 20 is arranged on the side of shunt die frame 10 away from welding cavity 11, and shunt material block 20 is provided with first shunt bridge 21, and first shunt bridge 21 is arranged in feed passage 12, to separate feed passage 12 into first feed passage 121 and second feed passage 122, and first feed passage 121 and second feed passage 122 are communicated with welding cavity 11.

[0072] By the arrangement of shunt bridge, blank can be shunted, respectively from first feed passage 121 and second feed passage 122 into welding cavity 11, to meet the continuous extrusion production of larger width metal plate, guarantee its edge portion forming.It can be easily understood that, the continuous extrusion die 100 adopts the mode of shunting welding of one blank, and compared with the mode of welding of double blanks, it is good in versatility, need not to replace extrusion wheel, can improve production efficiency and reduce cost.Meanwhile, welding cavity 11 is close to shunt material block 20, that is, the shunting and welding positions of blank are close to shunt material block 20, according to continuous extrusion principle, shunt material block 20 is the region with the highest deformation temperature in the whole continuous extrusion process, and shunting and welding close to shunt material block 20 help to reduce the difference between welding zone and base material, to reduce the occurrence of weld, and improve welding quality.

[0073] The above merely describes specific embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A continuous extrusion die characterized by, The continuous extrusion die (100) comprises a split die frame (10), a split blocking block (20), a welding die plate (30), and a welding cavity (11). The split die frame (10) is provided with a welding cavity (11) on one side, and a feeding channel (12) is formed in the welding cavity (11) and penetrates through the other side of the split die frame (10). The split blocking block (20) is arranged on the side of the split die frame (10) away from the welding cavity (11), and is provided with a first split bridge (21) arranged in the feeding channel (12) to divide the feeding channel (12) into a first feeding channel (121) and a second feeding channel (122), and the first feeding channel (121) and the second feeding channel (122) are in communication with the welding cavity (11). The split die frame (10) is further provided with a second split bridge (13) arranged in the feeding channel (12) and located on the side of the first split bridge (21) close to the welding cavity (11); the first split bridge (21) and the second split bridge (13) abut and are used together to divide the feeding channel (12) into the first feeding channel (121) and the second feeding channel (122).

2. The continuous extrusion die of claim 1, wherein The split blocking block (20) is further provided with a blocking plug (22) located on the side of the blocking block away from the split die frame (10).

3. The continuous extrusion die of claim 1, wherein The split die frame (10) is further provided with a first mounting groove (14) located on the side of the split die frame (10) away from the welding cavity (11), and the first mounting groove (14) is in communication with the first feeding channel (121) and the second feeding channel (122), and the split blocking block (20) is arranged in the first mounting groove (14).

4. The continuous extrusion die of claim 1, wherein, The continuous extrusion die (100) further comprises a welding die plate (30) arranged on the side of the split die frame (10) close to the welding cavity (11), and the welding die plate (30) is provided with a welding channel (31) in communication with the welding cavity (11).

5. The continuous extrusion die of claim 1, wherein, The welding die plate (30) is provided with a first flow blocking block (32) and a second flow blocking block (33) arranged on the opposite two side walls of the welding channel (31) and spaced apart in a first direction; the welding channel (31) is provided with a first flow promoting inclined surface (34) and a second flow promoting inclined surface (35) spaced apart in a second direction, and the first flow promoting inclined surface (34) and the second flow promoting inclined surface (35) are arranged on the side of the welding channel (31) away from the split die frame (10). The first direction and the second direction form an angle. ​ 6. The continuous extrusion die of claim 5, wherein, The continuous extrusion die (100) further comprises an expansion die plate (40) arranged on the side of the welding die plate (30) away from the flow distribution die frame (10), and the expansion die plate (40) is provided with an expansion channel (41) in communication with the welding channel (31); The expansion die plate (40) is provided with a third flow resistance block (42) and a fourth flow resistance block (43), and the third flow resistance block (42) and the fourth flow resistance block (43) are arranged on the opposite two side walls of the expansion channel (41) and are arranged in the first direction, the third flow resistance block (42) is in abutment with the first flow resistance block (32), and the fourth flow resistance block (43) is in abutment with the second flow resistance block (33); the expansion channel (41) is provided with a third flow promoting inclined surface (44) and a fourth flow promoting inclined surface (45), and the third flow promoting inclined surface (44) and the fourth flow promoting inclined surface (45) are arranged in the second direction, and the third flow promoting inclined surface (44) and the fourth flow promoting inclined surface (45) are arranged on the side of the expansion channel (41) away from the welding die plate (30); The first flow promoting inclined surface (34) and the second flow promoting inclined surface (35) are located between the third flow promoting inclined surface (44) and the fourth flow promoting inclined surface (45).

7. The continuous extrusion die of claim 6, wherein, The continuous extrusion die (100) further comprises a pressure boosting die plate (50) arranged on the side of the expansion die plate (40) away from the welding die plate (30), and the pressure boosting die plate (50) is provided with a first pressure boosting channel (51) and a second pressure boosting channel (52), and the first pressure boosting channel (51) is arranged close to the expansion channel (41), and the expansion channel (41), the first pressure boosting channel (51) and the second pressure boosting channel (52) are in communication in sequence; The size of the first pressure boosting channel (51) is larger than the size of the second pressure boosting channel (52).

8. The continuous extrusion die of claim 7, wherein, The continuous extrusion die (100) further comprises a sizing die plate (60) arranged on the side of the pressure boosting die plate (50) away from the expansion die plate (40), and the sizing die plate (60) is provided with a sizing channel (61) and a clearance channel (62), and the sizing channel (61) is arranged close to the second pressure boosting channel (52), and the second pressure boosting channel (52), the sizing channel (61) and the clearance channel (62) are in communication in sequence; The size of the clearance channel (62) gradually increases away from the sizing channel (61).

9. The continuous extrusion die of claim 8, wherein, The continuous extrusion die (100) further comprises a die seat (70) arranged on the side of the sizing die plate (60) away from the pressure boosting die plate (50), and the die seat (70) is connected with the flow distribution die frame (10).

10. The continuous extrusion die of claim 9, wherein, The shunt die frame (10) is also provided with a second mounting groove (15) near one side of the welding die plate (30), the bottom wall of the second mounting groove (15) is provided with the welding cavity (11), and the welding die plate (30) is arranged in the second mounting groove (15); and / or, The die seat (70) is provided with a third mounting groove (71), and the expansion die plate (40), the supercharging die plate (50) and the sizing die plate (60) are arranged in the third mounting groove (71).

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