Leveling stamping die

Abstract

The utility model relates to a leveling stamping die which comprises a lower die assembly, an upper die assembly, an upper die insert core and a lower die insert core, the lower die assembly and the upper die assembly are oppositely arranged, and a material belt channel for a to-be-machined material to pass through is formed between the upper die assembly and the lower die assembly. The upper die insert is arranged on the upper die assembly, the lower die insert is arranged on the lower die assembly, the upper die insert and the lower die insert are oppositely arranged on the two sides of the material belt channel, and the upper die assembly can be driven by external force to drive the upper die insert to be close to or away from the lower die insert so as to press or loosen materials to be machined. The side, facing the material belt channel, of the lower die insert core or the side, facing the material belt channel, of the upper die insert core is provided with a protruding strip. According to the leveling stamping die, when the upper die insert core and the lower die insert core are pressed, grains on the surface of a to-be-machined material can be rearranged through the protruding strips, and therefore the effect of eliminating bending deformation stress of the to-be-machined material in the stamping process is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of stamping dies, and in particular to a flattening stamping die. Background Art

[0002] Generally, when the materials to be processed for stamping production are packaged and transported in the form of coils, a leveling machine is needed to level the materials before stamping to avoid product distortion or damage to the stamping die due to the bending deformation stress of the materials to be processed during stamping production, thereby ensuring the product yield and production efficiency. Usually, the leveling machine is set in the front area of ​​the stamping machine to cooperate with the stamping machine for stamping production.

[0003] However, the leveling machine has the problem of occupying the production space. Therefore, under the condition that the production space is effective, how to eliminate the bending deformation stress of the material to be processed during the stamping process becomes a key issue in stamping production. Summary of the invention

[0004] Based on this, it is necessary to provide a flattening stamping die that can eliminate the bending deformation stress of the material to be processed during the stamping process to address the above-mentioned problems.

[0005] The technical solution is as follows:

[0006] In one aspect, a flattening stamping die is provided, comprising:

[0007] Lower mold assembly;

[0008] An upper mold assembly, wherein the lower mold assembly is arranged opposite to the upper mold assembly, and a material belt channel for passing the material to be processed is formed between the upper mold assembly and the lower mold assembly;

[0009] An upper die insert and a lower die insert, wherein the upper die insert is arranged on the upper die assembly, and the lower die insert is arranged on the lower die assembly, and the upper die insert and the lower die insert are arranged on both sides of the material strip channel opposite to each other, and the upper die assembly can drive the upper die insert to approach or move away from the lower die insert under the driving of an external force, so as to press or release the material to be processed;

[0010] Wherein, a convex strip is provided on a side of the lower mold insert facing the material strip channel or a side of the upper mold insert facing the material strip channel.

[0011] The technical solution is further described below:

[0012] In the above-mentioned leveling stamping die, the upper die insert and the lower die insert are relatively arranged on the opposite sides of the material strip channel, so that when the material to be processed is installed in the material strip channel, the upper die insert and the lower die insert can be located on the opposite sides of the material to be processed, and then the upper die assembly drives the upper die insert to move to the side close to the lower die insert, so that when the leveling stamping die is switched to the closed die state, the upper die insert and the lower die insert can press the material to be processed between the two. Since the convex strip is convexly arranged on the side of the upper die insert facing the material strip channel or the side of the lower die insert facing the material strip channel, during the process of pressing the upper die insert and the lower die insert, the convex strip can gradually press into the surface of the material to be processed and form a groove on the surface of the material to be processed. Therefore, when the convex strip is on the side of the material to be processed that is bent and arched, when the convex strip is pressed into the surface of the material to be processed, the convex strip can rearrange the grains on the surface of the material to be processed, thereby eliminating the bending deformation stress inside the material to be processed, and thus can achieve the effect of leveling the material to be processed. Among them, since the upper die insert is arranged in the upper die assembly and the lower die insert is arranged in the lower die assembly, the upper die insert and the lower die insert can level the material to be processed during the stamping production process, which not only solves the problem of the leveling machine occupying the production land, but also avoids various defects on the material surface caused by the leveling machine. In addition, it can also avoid the problems of low stamping production yield and damage to the stamping die caused by the internal stress of the material to be processed, thereby effectively ensuring product quality, protecting the stamping die and improving production efficiency.

[0013] In one of the embodiments, the extending direction of the convex strip is consistent with the extending direction of the material strip channel.

[0014] In one embodiment, the number of the convex strips is two, and the two convex strips are spaced apart along a first direction, the first direction is perpendicular to the extension direction of the material strip channel, and the first direction is perpendicular to the relative direction between the upper mold inserter and the lower mold inserter.

[0015] In one embodiment, the lower mold assembly includes a lower mold plate, a lower pad and a female mold plate stacked in sequence, the female mold plate is provided with a lower mold groove, and the lower mold insert is installed in the lower mold groove; the upper mold assembly includes an upper mold plate, an upper pad, a male mold plate, a stripper plate pad and a stripper plate, the stripper plate is arranged opposite to the female mold plate, the material belt channel is formed between the stripper plate and the female mold plate, an upper mold groove is provided on the stripper plate, the upper mold insert is installed in the upper mold groove, and the upper mold plate can drive the upper mold insert to approach or move away from the lower mold insert under the action of external force.

[0016] In one embodiment, the end surface of the upper mold insert close to the lower mold insert is flush with the notch of the upper mold groove;

[0017] And / or, the end surface of the lower mold insert close to the upper mold insert is flush with the notch of the lower mold groove.

[0018] In one of the embodiments, the male template is connected to the unloading plate through an elastic member, the lower mold assembly includes a punch, one end of the punch is connected to the male template, the upper mold insert is provided with a punch hole matching the punch, the end of the punch away from the male template can be slidably inserted in the punch hole, the lower mold insert is provided with a blanking hole matching the punch, the lower mold assembly is provided with a waste hole, the waste hole passes through the lower mold, the lower pad and is connected to the blanking hole, and the upper mold can drive the punch to pass through the punch hole and into the blanking hole under the action of external force.

[0019] In one embodiment, the leveling stamping die includes two rows of floating pins arranged in parallel on opposite sides of the material strip channel, each of the floating pins includes a fixed part, an elastic part and a floating part, the elastic part is connected between the fixed part and the floating part, each of the fixed parts is connected to the lower mold plate, and one end of each floating part away from the fixed part protrudes from the surface of the lower mold insert close to the upper mold insert, and each is provided with a limiting groove, each of the limiting grooves is located in the same horizontal plane, and each of the limiting grooves is used to slide and engage with the edge of the material to be processed.

[0020] In one embodiment, the upper mold insert is connected to the stripper plate by screws; and / or the lower mold insert is connected to the female mold plate by screws.

[0021] In one embodiment, the leveling stamping die includes a first limiting column and a second limiting column, the first limiting column and the second limiting column are arranged opposite to each other, the first limiting column is connected to the upper mold assembly, and one end of the second limiting column is connected to the lower mold assembly.

[0022] In one of the embodiments, the flattening stamping die further includes a guide sleeve and a guide column, the guide sleeve is connected to the upper die assembly, the guide column is connected to the lower die assembly, and the guide sleeve is slidably connected to the guide column. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements are drawn only as examples in the drawings and are not necessarily drawn according to the true scale.

[0026] FIG. 1 is a schematic diagram of the three-dimensional structure of a flattening stamping die in a closed state in one embodiment.

[0027] FIG. 2 is a schematic cross-sectional view of the flattening stamping die in an embodiment of the application in a closed state.

[0028] FIG. 3 is a schematic diagram of a partial cross-sectional structure of an upper mold insert and a lower mold insert in a mold closing state in one embodiment.

[0029] FIG. 4 is a schematic structural diagram of an upper mold insert in one embodiment.

[0030] FIG. 5 is a schematic diagram of a partial cross-sectional structure of a flattening stamping die in one embodiment.

[0031] FIG. 6 is a schematic structural diagram of the connection between the lower mold assembly and the floating pin in one embodiment.

[0032] FIG. 7 is a schematic diagram of a partial cross-sectional structure of a floating material pin in one embodiment.

[0033] Description of reference numerals:

[0034] 100. Leveling stamping die; 1. Upper die assembly; 11. Upper die plate; 12. Upper pad; 13. Male die plate; 14. Unloading plate pad; 15. Unloading plate; 16. Punch; 2. Material to be processed; 3. Lower die assembly; 3a. Waste port; 31. Female die plate; 32. Lower pad; 33. Lower die plate; 4. Second limiting column; 5. Lower die insert; 51. Blanking hole; 6. Upper die insert; 61. Raised strip; 62. Punch hole; 7. First limiting column; 81. Guide sleeve; 82. Guide column; 9. Floating pin; 9a. Limiting groove; 91. Floating part; 92. Elastic part; 93. Fixed part. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0036] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0037] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0039] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0041] Referring to Fig. 1, Fig. 2, Fig. 2 and Fig. 4, a flattening stamping die 100 provided in one embodiment of the present application comprises a lower die assembly 3, an upper die assembly 1, a lower die insert 5 and an upper die insert 6. The lower die assembly 3 is arranged opposite to the upper die assembly 1, and a material strip channel for the material 2 to be processed is formed between the upper die assembly 1 and the lower die assembly 3. The upper die insert 6 is arranged on the upper die assembly 1, and the lower die insert 5 is arranged on the lower die assembly 3. The upper die insert 6 and the lower die insert 5 are arranged opposite to each other on both sides of the material strip channel. The upper die assembly 1 can drive the upper die insert 6 to approach or move away from the lower die insert 5 under the driving of an external force, so as to press or release the material 2 to be processed. Among them, a convex strip 61 is provided on the side of the lower die insert 5 facing the material strip channel or the side of the upper die insert 6 facing the material strip channel.

[0042] In the above-mentioned flattening stamping die 100, the upper die insert 6 and the lower die insert 5 are arranged on opposite sides of the material strip channel, so that when the material 2 to be processed is installed in the material strip channel, the upper die insert 6 and the lower die insert 5 can be located on opposite sides of the material 2 to be processed, and then the upper die assembly 1 drives the upper die insert 6 to move toward the side close to the lower die insert 5, so that when the flattening stamping die 100 is switched to the closed die state, the upper die insert 6 and the lower die insert 5 can press the material 2 to be processed between them. Since the convex strip 61 is convexly arranged on the side of the upper die insert 6 facing the material strip channel or the side of the lower die insert 5 facing the material strip channel, during the pressing process of the upper die insert 6 and the lower die insert 5, the convex strip 61 can gradually press into the surface of the material 2 to be processed and form a groove on the surface of the material 2 to be processed. Therefore, when the convex strip 61 is on the side of the material 2 to be processed that is bent and arched, when the convex strip 61 is pressed into the surface of the material 2 to be processed, the convex strip 61 can rearrange the grains on the surface of the material 2 to be processed, thereby eliminating the bending deformation stress inside the material 2 to be processed, and thus can achieve the effect of leveling the material 2 to be processed. Among them, since the upper die insert 6 is arranged on the upper die assembly 1 and the lower die insert 5 is arranged on the lower die assembly 3, the upper die insert 6 and the lower die insert 5 can level the material 2 to be processed during the stamping production process, thereby not only solving the problem of the leveling machine occupying the production land, but also avoiding various defects on the material surface caused by the use of the leveling machine for leveling. In addition, it can also avoid the problems of low stamping production yield and damage to the stamping die caused by the internal stress of the material 2 to be processed, thereby effectively ensuring product quality, protecting the stamping die and improving production efficiency.

[0043] In the actual equipment, whether the convex strip 61 is arranged on the upper die insert 6 or the lower die insert 5 can be selected according to the bending deformation direction of the material 2 to be processed. Since the bending deformation direction of the same material 2 to be processed is the same, it is only necessary to adjust the position of the convex strip 61 according to the bending deformation of the material 2 to be processed before stamping production, and the material 2 to be processed can be continuously stamped.

[0044] In one embodiment, as shown in FIG3 , the extension direction of the convex strip 61 is consistent with the extension direction of the material strip channel. Thus, when the material 2 to be processed is installed in the material strip channel, the extension direction of the convex strip 61 can be consistent with the extension direction of the material 2 to be processed, so that when the convex strip 61 is on the side where the material 2 to be processed is bent and arched, the effective length of the convex strip 61 in the extension direction of the material 2 to be processed is larger, so that when the convex strip 61 is pressed into the material 2 to be processed, the bending deformation stress of the material 2 to be processed can be better eliminated, so as to better modify the distortion deformation of the material 2 to be processed.

[0045] In one embodiment, as shown in FIG. 4 , the number of the convex strips 61 is two, and the two convex strips 61 are arranged at intervals along a first direction, and the first direction is perpendicular to the extension direction of the material strip channel and perpendicular to the relative direction of the upper mold insert 6 and the lower mold insert 5. In this way, when the material 2 to be processed is installed in the material strip channel and the upper mold insert 6 and the lower mold insert 5 press the material 2 to be processed, the two convex strips 61 correspond to the two side edges of the material 2 to be processed respectively, so that the two convex strips 61 can press grooves on the opposite sides of the material 2 to be processed, so as to better achieve the leveling effect.

[0046] Optionally, the two convex strips 61 are arranged parallel and spaced apart in the first direction.

[0047] Schematically, as shown in FIG. 3 and FIG. 4 , when the convex strip 61 is provided on the upper die insert 6, the end surface of the convex strip 61 facing the lower die insert 5 is a plane. When the convex strip 61 is provided on the lower die insert 5, the end surface of the convex strip 61 facing the upper die insert 6 is a plane. In this way, when the convex strip 61 is pressed into the material to be processed 2, the grains of the material to be processed 2 can be better driven to rearrange, avoiding the problem of stress concentration on the surface of the material to be processed 2 due to the sudden change of the structure of the convex strip 61.

[0048] Optionally, the convex strip 61 has a plane, two straight surfaces and two arcuate convex surfaces, the plane is perpendicular to the relative direction of the upper mold insert 6 and the lower mold insert 5, the two straight surfaces are arranged in parallel, the plane is connected to the two straight surfaces and is arranged parallel to the extension direction of the material strip channel, the two arcuate convex surfaces are respectively arranged at both ends of the straight surfaces, and are connected to the two straight surfaces and the plane, and the two straight surfaces and the two arcuate convex surfaces are connected to the inserts corresponding to the convex strip 61. In this way, the convex strip 61 can be better pressed into the surface of the material 2 to be processed, so as to better eliminate the internal stress of the material 2 to be processed. Among them, the insert is an upper mold insert or a lower mold insert.

[0049] Optionally, the spacing of each movement of the material to be processed 2 relative to the flattening stamping die 100 is a predetermined spacing, and the length of the ridge 61 can be between 0.5 times and 0.8 times the predetermined spacing. The thickness of the material to be processed 2 is a first dimension, and the width of the ridge 61 can be greater than the first dimension. The surface of the ridge 61 facing the material strip channel to the surface of the end face of the insert where it is provided is between 0.025 times and 0.25 times of the first dimension, that is, the height of the ridge 61 is between 0.025 times and 0.25 times of the first dimension. Among them, the insert is an upper die insert 6 or a lower die insert 5.

[0050] In one embodiment, as shown in FIG. 1 and FIG. 2 , the lower mold assembly 3 includes a lower mold plate 33, a lower pad 32, and a female mold plate 31 stacked in sequence, the female mold plate 31 is provided with a lower mold groove, and the lower mold insert 5 is installed in the lower mold groove. The upper mold assembly 1 includes an upper mold plate 11, an upper pad 12, a male mold plate 13, a stripper plate pad 14, and a stripper plate 15, the stripper plate 15 is arranged opposite to the female mold plate 31, the material belt channel is formed between the stripper plate 15 and the female mold plate 31, the stripper plate 15 is provided with an upper mold groove, the upper mold insert 6 is installed in the upper mold groove, and the upper mold plate 11 can drive the upper mold insert 6 to approach or move away from the lower mold insert 5 under the action of external force. In this way, when the external force drives the upper template 11 to move toward the side close to the lower mold assembly 3, the upper template 11 can drive the upper mold insert 6 to move toward the side close to the lower mold insert 5, so that the upper mold insert 6 and the lower mold insert 5 can press the material 2 to be processed together, and then the convex strip 61 can perform a leveling operation on the material 2 to be processed in the material belt channel, thereby ensuring the reliability of the leveling stamping mechanism.

[0051] In one embodiment, as shown in FIG. 2 , FIG. 3 and FIG. 5 , the end surface of the upper die insert 6 close to the lower die insert 5 is flush with the notch of the upper die groove. In this way, when the upper die assembly 1 is driven by external force to move toward the side close to the lower die assembly 3 , the lower die insert 5 can better press the material 2 to be processed with the upper die insert 6 , so that the convex strip 61 can effectively eliminate the bending stress of the material 2 to ensure the leveling effect.

[0052] In one embodiment, as shown in FIG2, FIG3 and FIG5, the end surface of the lower die insert 5 close to the upper die insert 6 is flush with the notch of the lower die groove. In this way, when the upper die assembly 1 is driven by external force to move toward the side close to the lower die assembly 3, the lower die insert 5 can better press the material 2 to be processed with the upper die insert 6, so that the convex strip 61 can effectively eliminate the bending stress of the material 2 to ensure the leveling effect.

[0053] In one embodiment, the upper die insert 6 is connected to the stripper plate 15 by screws. In this way, it can be ensured that the upper die insert 6 can be easily installed and removed from the stripper plate 15, so that the upper die insert 6 can be easily replaced as needed, so that the upper die insert 6 can cooperate with the lower die insert 5 to complete the leveling of the material 2 to be processed.

[0054] Furthermore, in one embodiment, the lower die insert 5 is connected to the female die plate 31 by screws. In this way, it can be ensured that the lower die insert 5 can be conveniently installed and removed from the female die plate 31, so that the lower die insert 5 can be conveniently replaced as needed, so that the upper die insert 6 can cooperate with the lower die insert 5 to complete the leveling of the material 2 to be processed.

[0055] Among them, since the convex strip 61 is arranged on the upper die insert 6 or the lower die insert 5, and the upper die insert 6 or the lower die insert 5 has the characteristic of convenient installation, the position of the convex strip 61 and the damaged insert with the convex strip 61 can be conveniently replaced as needed, thereby ensuring that the flattening stamping die 100 can produce products that meet the corresponding flatness requirements and can effectively reduce the maintenance time of the die.

[0056] In one embodiment, as shown in FIG. 5 , the male mold plate 13 is connected to the stripper plate 14 through an elastic member, the lower mold assembly 3 includes a punch 16, one end of the punch 16 is connected to the male mold plate 13, the upper mold insert 6 is provided with a punch hole 62 matched with the punch 16, the end of the punch 16 away from the male mold plate 13 can be slidably inserted in the punch hole 62, the lower mold insert 5 is provided with a blanking hole 51 matched with the punch 16, the lower mold assembly 3 is provided with a waste hole, the waste hole passes through the lower mold plate 33, the lower pad 32 and is connected to the blanking hole 51, and the upper mold plate 11 can drive the punch 16 to pass through the punch hole 62 and pass through the blanking hole 51 under the action of external force. In this way, in the process of external force driving the upper mold assembly 1 to move toward one side of the lower mold assembly 3, when the elastic member is not squeezed, the punch 16 and the upper mold insert 6 can move synchronously, so that the upper mold insert 6 and the lower mold insert 5 can first press the material 2 to be processed to achieve the leveling operation. When the upper die insert 6 is pressed against the lower die insert 5, and the external force drives the upper die plate to continue to move toward the side close to the lower die assembly 3, due to the compression of the elastic member, the male die plate 13 can drive the punch 16 to continue to move toward the side close to the lower die assembly 3, so that the end of the punch 16 that is away from the male die plate 13 can pass through the punch hole 62, and after passing through the material to be processed 2, it reaches the blanking hole 51, so that the punch 16 can perform the punching operation on the material to be processed 2. This can not only save production time and ensure production efficiency, but also ensure that the punching operation is performed on the basis of eliminating the internal stress of the material to be processed 2, thereby avoiding the distortion and deformation of the product during stamping production and ensuring the yield of the product. The setting of the blanking hole 51 and the waste hole 3a can ensure that the material punched out by the punch 16 can be discharged from the flattening stamping die 100, which is conducive to ensuring the reliability of the flattening stamping die 100.

[0057] Optionally, the elastic member may be a spring.

[0058] In one embodiment, as shown in FIG. 6 and FIG. 7, the flattening stamping die 100 includes two rows of floating pins 9 arranged in parallel on opposite sides of the material belt channel, each floating pin 9 includes a fixed portion 93, an elastic portion 92 and a floating portion 91, the elastic portion 92 is connected between the fixed portion 91 and the floating portion 93, each fixed portion 93 is connected to the lower template 33, and each floating portion 91 is protruded from the surface of the lower die insert 5 close to the upper die insert 6 at one end away from the fixed portion 93, and is provided with a limiting groove 9a, each limiting groove 9a is located in the same horizontal plane, and each limiting groove 9a is used to slide and engage with the edge of the material 2 to be processed. In this way, the two rows of floating pins 9 can play the role of guiding the material 2 to be processed, thereby avoiding the deviation caused by the relative movement of the material 2 to be processed to the flattening stamping die 100, ensuring that the upper die insert 6 and the lower die insert 5 can effectively press the material 2 to be processed, and then ensuring that the flattening stamping die 100 can play a flattening role. Among them, since the edge of the material to be processed 2 is set in the limiting groove 9a in the floating part 91, and the elastic member 92 is connected between the floating part 91 and the fixed part 93, the upper mold assembly 1 moves toward the side close to the lower mold assembly 3, and the floating part 91 can drive the material to be processed 2 to move toward the side of the lower mold assembly 3 under the abutment of the upper assembly, thereby ensuring that the upper mold insert 6 and the lower mold insert 5 can press the material to be processed 2. When the upper mold assembly 1 is separated from the lower mold assembly 3, the elastic member 92 allows the floating part 91 to reset to maintain the material to be processed 2 in a suspended state, so that when the material to be processed 2 moves relative to the flattening stamping die 100, the limiting groove 9a can play the role of guiding the material 2 to be processed.

[0059] Optionally, the elastic member may be a spring.

[0060] In one embodiment, as shown in combination with FIG. 1 and FIG. 2 , the flattening punching die 100 includes a first limiting column 7 and a second limiting column 4, the first limiting column 7 and the second limiting column 4 are arranged opposite to each other, the first limiting column 7 is connected to the upper die assembly 1, and the second limiting column 4 is connected to the lower die assembly 3. In this way, when the upper die assembly 1 drives the upper die insert 6 to approach the lower die insert 5, the first limiting column 7 can also approach the second limiting column 4, and when the upper die insert 6 and the lower die insert 5 are pressed together with the material 2 to be processed, the first limiting column 7 can effectively limit the movement of the upper die assembly 1 by abutting against the second limiting column 4, thereby avoiding damage to the lower die insert 5 or the material 2 to be processed due to the over-travel movement of the upper die insert 6, which is conducive to ensuring the reliability of the flattening punching die.

[0061] Optionally, the first limiting column 7 is connected to the upper template 11 , and the second limiting column 4 is connected to the lower template 33 .

[0062] In one embodiment, as shown in FIG. 1 , the flattening stamping die 100 further includes a guide sleeve 81 and a guide post 82, wherein the guide sleeve 81 is connected to the upper die assembly 1, and the guide post 82 is connected to the lower die assembly 3, and the guide sleeve 81 is slidably connected to the guide post 82. Thus, when the upper die assembly 1 drives the upper die insert 6 to approach the lower die insert 5, the guide sleeve 81 can limit the moving direction of the upper die assembly 1 by sliding relative to the guide post 82, thereby ensuring that the upper die insert 6 and the lower die insert 5 can reliably press the material 2 to be processed, and further ensuring that when the upper die insert 6 and the lower die insert 5 are pressed, the convex strip 61 can effectively eliminate the bending deformation in the material 2 to be processed.

[0063] Optionally, the guide sleeve 81 is connected to the upper template 11 , and the guide column 82 is connected to the lower template 33 .

[0064] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A flattening stamping die, characterized in that: include: Lower mold assembly; An upper mold assembly, wherein the lower mold assembly is arranged opposite to the upper mold assembly, and a material belt channel for passing the material to be processed is formed between the upper mold assembly and the lower mold assembly; An upper die insert and a lower die insert, wherein the upper die insert is arranged on the upper die assembly, and the lower die insert is arranged on the lower die assembly, and the upper die insert and the lower die insert are arranged on both sides of the material strip channel opposite to each other, and the upper die assembly can drive the upper die insert to approach or move away from the lower die insert under the driving of an external force, so as to press or release the material to be processed; Wherein, a convex strip is provided on a side of the lower mold insert facing the material strip channel or a side of the upper mold insert facing the material strip channel.

2. The flattening stamping die according to claim 1, characterized in that: The extending direction of the convex strip is consistent with the extending direction of the material strip channel.

3. The flattening stamping die according to claim 1, characterized in that: The number of the convex strips is two, and the two convex strips are arranged at intervals along a first direction, the first direction is perpendicular to the extension direction of the material strip channel, and the first direction is perpendicular to the relative direction between the upper mold inserter and the lower mold inserter.

4. The flattening stamping die according to claim 1, characterized in that: The lower mold assembly includes a lower mold plate, a lower pad and a female mold plate stacked in sequence, the female mold plate is provided with a lower mold groove, and the lower mold insert is installed in the lower mold groove; the upper mold assembly includes an upper mold plate, an upper pad, a male mold plate, a stripper plate pad and a stripper plate, the stripper plate is arranged opposite to the female mold plate, the material belt channel is formed between the stripper plate and the female mold plate, an upper mold groove is provided on the stripper plate, the upper mold insert is installed in the upper mold groove, and the upper mold plate can drive the upper mold insert to approach or move away from the lower mold insert under the action of external force.

5. The flattening stamping die according to claim 4, characterized in that: The end surface of the upper die insert close to the lower die insert is flush with the notch of the upper die groove; And / or, the end surface of the lower mold insert close to the upper mold insert is flush with the notch of the lower mold groove.

6. The flattening stamping die according to claim 4, characterized in that: The male template is connected to the unloading plate through an elastic member, the lower mold assembly includes a punch, one end of the punch is connected to the male template, the upper mold insert is provided with a punch hole matching the punch, the end of the punch away from the male template can be slidably inserted in the punch hole, the lower mold insert is provided with a blanking hole matching the punch, the lower mold assembly is provided with a waste hole, the waste hole passes through the lower template, the lower pad and is connected to the blanking hole, and the upper mold can drive the punch to pass through the punch hole and into the blanking hole under the action of external force.

7. The flattening stamping die according to claim 4, characterized in that: The leveling stamping die includes two rows of floating pins arranged in parallel on opposite sides of the material strip channel, each of the floating pins includes a fixed part, an elastic part and a floating part, the elastic part is connected between the fixed part and the floating part, each of the fixed parts is connected to the lower mold plate, and one end of each floating part away from the fixed part protrudes from the surface of the lower mold insert close to the upper mold insert, and each is provided with a limiting groove, each of the limiting grooves is located in the same horizontal plane, and each of the limiting grooves is used to slide and engage with the edge of the material to be processed.

8. The flattening stamping die according to claim 4, characterized in that: The upper mold insert is connected to the stripper plate via screws; and / or the lower mold insert is connected to the female mold plate via screws.

9. The flattening stamping die according to claim 1, characterized in that: The leveling stamping die includes a first limiting column and a second limiting column, the first limiting column and the second limiting column are arranged opposite to each other, the first limiting column is connected to the upper die assembly, and one end of the second limiting column is connected to the lower die assembly.

10. The flattening stamping die according to claim 1, characterized in that: The flattening stamping die also includes a guide sleeve and a guide column, the guide sleeve is connected to the upper die assembly, the guide column is connected to the lower die assembly, and the guide sleeve is slidably connected to the guide column.

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