Stamping strip support mechanism

Abstract

This application relates to a strip support mechanism for stamping. The mechanism includes a lower die base; the lower die base includes a die cavity, a supporting surface, and at least two strip support blocks; the die cavity is disposed between the two supporting surfaces, or the die cavity is surrounded by the supporting surfaces; the at least two strip support blocks are movably disposed on the supporting surfaces and distributed on both sides of the strip transport direction; the strip support blocks can move on the supporting plane formed by the supporting surfaces to above the die cavity or to above the die cavity. The solution provided by this application can provide support for the strip during transport, maintaining its balanced and stable operation. When stamping is required, the support for the strip is removed to avoid affecting the stamping and blanking process, facilitating high-speed continuous production of the die and reducing product scrap rate and die damage rate.

Description

Technical Field

[0001] The present application relates to the field of stamping technology, and in particular to a material strip supporting mechanism for stamping. Background Art

[0002] Stamping is a production technology that uses a mold installed on a press (commonly known as a punch press) to apply pressure to the sheet material, causing the sheet material to deform or separate in the mold, thereby obtaining product parts with a certain shape, size and performance.

[0003] High-speed stamping dies have high punching speeds and high requirements for continuous and smooth feeding of the material strip. In the prior art, in order to improve material utilization, the overlap value of the high-speed stamping continuous die material strip is very small, and the material strength at the overlap position is poor. In addition, the mold position space is limited and it is impossible to arrange traditional lifting blocks (such as the stator and rotor blanking places because the blanking cavity must ensure integrity and cannot be set up with lifting blocks). When the material strip reaches the blanking step, it often sinks (due to the effect of gravity or the curvature of the blank coil itself) and cannot run smoothly to the predetermined position, causing misfeeding and increasing the scrap rate. Even if traditional lifting blocks are arranged, when blanking and stamping are required, the blanking punch often collides with the lifting blocks, causing damage to the mold, resulting in the inability of the mold to produce continuously. Summary of the invention

[0004] In order to overcome the problems existing in the related art, the present application provides a stamping material strip support mechanism, which helps the continuous production of molds and reduces the product scrap rate and mold damage rate.

[0005] The present application provides a stamping material strip support mechanism, comprising: a lower die base 1;

[0006] The lower mold base 1 comprises: a concave mold cavity 11, a supporting surface 12 and at least two strip support blocks 13;

[0007] The concave model cavity 11 is disposed between the two supporting surfaces 12, or the concave model cavity 11 is surrounded by the supporting surfaces 12;

[0008] The at least two material strip support blocks 13 are movably disposed on the supporting surface 12 and are distributed on both sides of the material strip transmission direction;

[0009] The material strip support block 13 can be moved on the supporting plane formed by the supporting surface 12 to the top of the concave mold cavity 11 or moved to be away from the top of the concave mold cavity 11 .

[0010] In one embodiment, the strip support block 13 is an L-shaped structure;

[0011] The strip support block 13 includes a support end 131 and an upper mold abutting end 132 .

[0012] In one embodiment, the support end 131 is a protruding portion of the L-shaped structure of the strip support block 13 in the horizontal direction;

[0013] The supporting end 131 is provided with an inclined surface.

[0014] In one embodiment, the upper mold abutment end 132 is a protruding portion of the L-shaped structure of the strip support block 13 in the vertical direction;

[0015] The upper mold abutting end 132 is provided with an inclined surface.

[0016] In one embodiment, the lower mold base 1 further includes: a strip guide block 14;

[0017] The strip guide block 14 is fixed on the supporting surface 12;

[0018] The material strip guide block 14 is a cavity structure; the cavity structure includes: a first opening 141 and a second opening 142; the first opening 141 is arranged on the upper surface of the material strip guide block 14; the second opening 142 is arranged on the lower surface of the material strip guide block 14 and on a side of the material strip guide block 14 facing the concave mold cavity 11;

[0019] The upper mold abutting end 132 passes through the first opening 141 , and the supporting end 131 passes through the second opening 142 facing the side of the female mold cavity 11 .

[0020] In one embodiment, the lower die base 1 further includes: a return spring 15 and a stop screw 16;

[0021] A first spring mounting hole 1321 is provided on the outer side of the upper die abutting end 132;

[0022] The cavity structure of the strip guide block 14 is provided with a second spring mounting hole 143 and a set screw mounting hole 144;

[0023] One end of the return spring 15 is installed in the first spring installation hole 1321, and the other end is installed in the second spring installation hole 143;

[0024] The set screw 16 is installed in the set screw installation hole 144 .

[0025] In one implementation, the set screw mounting hole 144 and the second spring mounting hole 143 are concentric holes, and the diameter of the set screw mounting hole 144 is smaller than or equal to the diameter of the second spring mounting hole 143 .

[0026] In one embodiment, it further comprises: an upper die punch seat 2;

[0027] The upper die punch seat includes: an insert block 21, a fixing plate 22 and an upper pad 23;

[0028] One end of the insert block 21 passes through the insert block positioning through hole 221 on the fixing plate 22 and is fixed on the upper pad 23, and the other end is a lower mold abutment end 211 provided with an inclined surface;

[0029] The fixing plate 22 is fixed on the upper pad 23;

[0030] The inclined surface of the lower mold abutting end 211 matches the inclined surface of the upper mold abutting end 132 , so that the inclined surface of the lower mold abutting end 211 can abut against the corresponding inclined surface of the upper mold abutting end 132 when the mold is closed, thereby applying a horizontal force to the strip support block 13 .

[0031] In one embodiment, the upper die punch seat further includes: a blanking punch 24;

[0032] The blanking punch 24 is fixed on the fixed plate 22;

[0033] The blanking punch 24 matches the concave mold cavity 11 .

[0034] In one embodiment, the material strip support block 13 limits the movement trajectory through the first opening 141 and the second opening 142 .

[0035] The technical solution provided by this application may have the following beneficial effects:

[0036] The lower mold base of the present application includes: a concave model cavity, a supporting surface and at least two material strip support blocks; the concave model cavity is arranged between the two supporting surfaces, or surrounded by the supporting surfaces; at least two material strip support blocks are movably arranged on the supporting surface, and are distributed on both sides of the material strip transmission direction; the material strip support block can move to the top of the concave model cavity or move to the top of the concave model cavity on the supporting plane formed by the supporting surface. In the scheme of the present application, when the material strip is transmitted, the material strip support block moves to the top of the concave model cavity to provide support for the material strip, maintain the balanced and stable operation of the material strip, prevent the material strip from sinking and causing misfeeding, and affect product molding. When the material strip needs to be stamped, the material strip support block moves to the top of the concave model cavity to remove the support for the material strip, avoid the collision between the blanking punch and the material strip support block, and affect the stamping and blanking, which is conducive to high-speed continuous production of the mold and reduces the product scrap rate and mold damage rate.

[0037] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0039] Figure 1 It is a schematic diagram of the structure of the lower die base of the stamping material strip support mechanism in the embodiment of the present application;

[0040] Figure 2 It is a projection diagram of the concave mold cavity of the lower mold base of the stamping material strip support mechanism in the embodiment of the present application;

[0041] Figure 3 Schematic diagram of the structure of the material strip guide block of the lower die base of the material strip support mechanism for stamping in the embodiment of the present application;

[0042] Figure 4 It is a schematic diagram of the upper die punch seat structure of the stamping material strip support mechanism in the embodiment of the present application;

[0043] Figure 5 It is a schematic diagram of the structure of the stamping material strip support mechanism in the embodiment of the present application. DETAILED DESCRIPTION

[0044] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0045] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0046] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0047] High-speed stamping dies have high punching speeds and high requirements for continuous and smooth feeding of the material strip. In the prior art, in order to improve material utilization, the overlap value of the high-speed stamping continuous die material strip is very small, and the material strength at the overlap position is poor. In addition, the mold position space is limited and it is impossible to arrange traditional lifting blocks (such as the stator and rotor blanking places because the blanking cavity must ensure integrity and cannot be set up with lifting blocks). When the material strip reaches the blanking step, it often sinks (due to the effect of gravity or the curvature of the blank coil itself) and cannot run smoothly to the predetermined position, causing misfeeding and increasing the scrap rate. Even if traditional lifting blocks are arranged, when blanking and stamping are required, the blanking punch often collides with the lifting blocks, causing damage to the mold, resulting in the inability of the mold to produce continuously.

[0048] In response to the above problems, the present application provides a stamping material strip support mechanism, which can provide support for the material strip when transmitting the material strip to maintain the balanced and stable operation of the material strip. When the material strip needs to be stamped, the support for the material strip is removed to avoid affecting the stamping blanking, which facilitates high-speed continuous production of the mold and reduces the product scrap rate and mold damage rate.

[0049] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0050] Embodiment 1

[0051] Figure 1 It is a schematic diagram of the lower die base structure of the stamping material strip support mechanism in the embodiment of the present application.

[0052] See also Figure 1 In the embodiment of the present application, the lower die base 1 of the stamping material strip support mechanism includes:

[0053] Concave mold cavity 11, supporting surface 12 and material strip supporting block 13.

[0054] The material belt support block 13 is movably arranged on the supporting surface 12 and distributed on both sides of the material belt transmission direction. The material belt support blocks 13 can be symmetrically distributed or staggered. The number of material belt support blocks 13 on both sides can be consistent or inconsistent, as long as the two sides of the material belt can be lifted to the same height at the same time and run smoothly during operation.

[0055] Exemplarily, there are two material strip support blocks 13 , which are symmetrically distributed on both sides of the material strip transmission direction.

[0056] The material strip support block 13 can move to the top of the concave mold cavity 11 or move away from the top of the concave mold cavity 11 on the supporting plane formed by the supporting surface 12 .

[0057] Exemplarily, there are multiple ways of movably connecting the material strip support block 13. A dovetail groove slide rail can be set on the lower mold base 1 so that the material strip support block 13 can slide along the dovetail groove slide rail, or a spring device can be set to push the material strip support block 13 to move.

[0058] Figure 2 It is a projection diagram of the concave mold cavity of the lower mold base of the stamping material strip support mechanism in the embodiment of the present application.

[0059] See also Figure 2 In this embodiment, the lower mold base 1 includes a concave model cavity 11 and a supporting surface 12, and the supporting surface 12 is arranged on both sides or around the concave model cavity 11; the supporting surface 12 forms a supporting plane in the horizontal direction, and the concave model cavity 11 will form a mold cavity projection on the supporting plane in the vertical direction, and the material strip support block 13 can partially extend to the mold cavity projection.

[0060] Exemplarily, the supporting surface 12 may include a first supporting surface and a second supporting surface, which are respectively located on both sides of the material belt transmission direction.

[0061] The following beneficial effects can be obtained from the above embodiment 1:

[0062] The lower mold base of this embodiment includes: a concave model cavity, a supporting surface and at least two material strip support blocks; the concave model cavity is arranged between the two supporting surfaces, or surrounded by the supporting surfaces; at least two material strip support blocks are movably arranged on the supporting surface, and are distributed on both sides of the material strip transmission direction; the material strip support block can move to the top of the concave model cavity or move to the top of the concave model cavity on the supporting plane formed by the supporting surface. In this embodiment, when the material strip is transmitted, the material strip support block moves to the top of the concave model cavity to provide support for the material strip, maintain the balanced and stable operation of the material strip, prevent the material strip from sinking and causing misfeeding, and affect product molding. When the material strip needs to be stamped, the material strip support block moves to the top of the concave model cavity to remove the support for the material strip, avoid the collision between the blanking punch and the material strip support block, and affect the stamping and blanking, which is conducive to high-speed continuous production of the mold and reduces the product scrap rate and mold damage rate.

[0063] Embodiment 2

[0064] In actual applications, based on Example 1, the material belt support block not only has the function of lifting the material belt, but also has a guiding function, which can guide the material belt to move forward to prevent the material belt from shifting to both sides. At the same time, the material belt guide block also has a guiding function, and can achieve a better guiding effect when combined with the material belt support block.

[0065] See also Figure 1In this embodiment, the strip support block 13 is an L-shaped structure, wherein the protruding portion in the horizontal direction is a support end 131, and the protruding portion in the vertical direction is an upper mold abutting end 132, wherein the support end 131 is provided with an inclined surface.

[0066] The entirety of the material strip guiding block 14 is disposed on the supporting surface 12 , that is, the material strip guiding block 14 does not extend above the concave mold cavity 11 .

[0067] In this embodiment, the height H of the strip guiding block 14 in the vertical direction is greater than the thickness h of the supporting end 131 in the vertical direction.

[0068] The following beneficial effects can be obtained from the above-mentioned embodiment 2:

[0069] An inclined surface is set at the support end of the material strip support block. When the material strip moves, the support end moves to the top of the concave mold cavity. When one side of the material strip is placed on the inclined surface of the support end, it will slide down the inclined surface due to uneven force. However, when the other side is also placed on the inclined surface of the corresponding support end, the forces on both sides are balanced, and the material strip can be placed stably on the inclined surfaces of the support ends on both sides. At the same time, due to the setting of the inclined surface, when the material strip passes, it will be stuck between the inclined contact points of the support ends on both sides, thereby being restricted to move forward between the inclined contact points of the support ends on both sides, thereby avoiding lateral deviation. In addition, when the high-speed movement of the material strip destroys the force balance of the inclined surface of the support end and causes the material strip to move up along the inclined surface, since the height of the material strip guide block in the vertical direction is greater than the thickness of the support end in the vertical direction, it can still guide the material strip when the material strip moves up and exceeds the thickness of the support end in the vertical direction, thereby avoiding lateral deviation of the material strip.

[0070] Embodiment 3

[0071] In practical applications, based on Example 1 and Example 2, the material strip support block needs to move freely horizontally within the open space on the upper surface of the material strip guide block, so that the supporting end of the material strip support block can move freely to the top of the concave model cavity or move to the top away from the concave model cavity.

[0072] Figure 3 It is a schematic diagram of the structure of the material strip guide block of the lower die base of the material strip support mechanism for stamping in the embodiment of the present application.

[0073] See also Figure 3 The material strip guide block 14 is a cavity structure, which includes a first opening 141 and a second opening 142. The first opening 141 is arranged on the upper surface of the material strip guide block 14, and the second opening 142 is also arranged on the lower surface of the material strip guide block 14 and on a side of the material strip guide block 14 facing the concave model cavity 11.

[0074] See also Figure 1The upper mold abutment end 132 passes through the first opening 141 , and the support end 131 passes through the second opening 142 facing the side of the concave mold cavity 11 , so that the strip support block 13 is fixed between the strip guide block 14 and the supporting surface 12 .

[0075] The material strip guide block 14 and the supporting surface 12 may be fixed together by screws, pins, or a combination of the two. Any method that can fix the two together is also acceptable, and is not limited here.

[0076] See also Figure 1 In the embodiment of the present application, a return spring 15 and a stop screw 16 are also provided.

[0077] A first spring mounting hole 1321 is provided on the outer side of the upper mold abutting end 132, and a second spring mounting hole 143 and a stop screw mounting hole 144 are provided in the cavity structure of the material strip guide block 14; one end of the return spring 15 is installed in the first spring mounting hole 1321, and the other end is installed in the second spring mounting hole 143.

[0078] Illustratively, the first spring mounting hole 1321 and the second spring mounting hole 143 are arranged opposite to each other.

[0079] The stop screw 16 is installed in the stop screw mounting hole 144; the stop screw mounting hole 144 and the second spring mounting hole 143 are concentric holes, and the hole diameter of the stop screw mounting hole 144 is less than or equal to the hole diameter of the second spring mounting hole 143. During installation, the stop screw 16 can use its own protruding thread to clamp the spring installed at the end of the second spring mounting hole 143, thereby limiting the spring at the end of the second spring mounting hole 143 within the second spring mounting hole 143.

[0080] When the material strip support block 13 is subjected to a horizontal thrust, it will move horizontally outward, squeezing the reset spring 15 outward. The stop screw 16 has a limiting effect on the reset spring 15, and can limit the reset spring 15 in the second spring mounting hole 143, thereby preventing the reset spring 15 from being separated from the second spring mounting hole 143 due to the increase in the squeezing force. At the same time, since the material strip support block 13 moves horizontally outward, its support end 131 also moves horizontally outward, and can completely separate from the top of the concave model cavity 11.

[0081] When the horizontal thrust on the strip support block 13 gradually weakens, the force on the return spring 15 decreases synchronously and slowly recovers and stretches, pushing the strip support block 13 inward in the horizontal direction, and finally the support end 131 of the strip support block 13 moves back to the top of the concave model cavity 11.

[0082] In this embodiment, the range of the strip support block 13 moving in the first opening 141 along the horizontal direction is at least the length of the first opening 141 of the strip support block 13 in the horizontal direction.

[0083] The following beneficial effects can be obtained from the above-mentioned embodiment 3:

[0084] The first opening and the second opening of the material strip guide block are used to fix the material strip support block between the material strip guide block and the supporting surface, and the set screw is installed in the set screw installation hole of the material strip guide block. One end of the return spring is installed in the spring installation hole outside the abutment end of the upper mold of the material strip support block, and the other end is sleeved on the set screw and installed in the spring installation hole on the inner side of the material strip guide block. This embodiment enables the material strip support block to move in the horizontal space defined by the first opening on the upper surface of the material strip guide block. When the material strip support block is subjected to horizontal When there is thrust in the direction of the material, the spring is compressed and the supporting end of the material strip support block is retracted to make it separate from the top of the concave model cavity. When the outward thrust weakens, the spring returns to drive the material strip support block to move inward, so that the supporting end of the material strip support block moves to the top of the concave model cavity. This arrangement can lift and guide the material strip when it is necessary, and facilitates the smooth and unobstructed falling of the blanking punch when stamping is required, while meeting the needs of stamping and lifting and guiding materials, and avoiding damage to the mold caused by the collision of the blanking punch with the material strip support block when it falls.

[0085] Embodiment 4

[0086] In practical applications, the stamping material strip support mechanism includes not only the above-mentioned lower die base but also an upper die punch seat.

[0087] Figure 4 It is a schematic diagram of the upper die punch seat structure of the stamping material strip support mechanism in the embodiment of the present application.

[0088] See also Figure 4 In the embodiment of the present application, the upper die punch seat 2 of the stamping material strip support mechanism includes:

[0089] Insert block 21 , fixing plate 22 , upper pad 23 and blanking punch 24 .

[0090] One end of the insert block 21 passes through the insert block positioning through hole 221 on the fixing plate 22 and is fixed on the upper pad 23, and the fixing method can be screw fixing, and the other end is a lower mold abutment end 211 provided with an inclined surface.

[0091] See also Figure 1 In the second embodiment, the strip support block 13 is provided with a sloped surface at the support end 131 and a sloped surface at the upper mold abutting end 132 thereof.

[0092] In this embodiment, the inclined surface of the lower mold abutting end 211 matches the inclined surface of the upper mold abutting end 132, so that the inclined surface of the lower mold abutting end 211 can abut against the corresponding inclined surface of the upper mold abutting end 132 when the mold is closed, thereby applying a horizontal force to the material strip support block 13.

[0093] The blanking punch 24 is fixed on the fixed plate 22, and the fixed plate 22 is fixed on the upper pad 23. The fixing method can use screws, pins or a combination of the two. Any method that can fix the blanking punch 24 and the fixed plate 22, the fixed plate 22 and the upper pad 23 can also be used, which is not limited here.

[0094] The blanking punch 24 matches the concave model cavity 11 so that the blanking punch 24 can enter the concave model cavity 11 when moving downward. The part of the blanking punch 24 that enters the concave model cavity 11 can be completely tangent to the concave model cavity 11 or leave a certain gap.

[0095] The following beneficial effects can be obtained from the above fourth embodiment:

[0096] The lower die abutment end of the upper die punch seat insert block matches the upper die abutment end of the lower die base material strip support block, so that when the insert block moves downward, the inclined surface of its lower die abutment end can abut against the corresponding inclined surface of the upper die abutment end, and the insert block can slide smoothly downward along the material strip support block, pushing the material strip support block horizontally outward; when the insert block moves upward and gradually separates from the material strip support block, the material strip support block will move inward again under the restoring action of the reset spring and return to its original position. Since the blanking punch is fixed on the fixed plate, and the fixed plate is fixed on the upper pad, when the insert block moves downward, the blanking punch moves downward synchronously, and when the insert block pushes the material strip support block outward until the material strip support block moves to the top of the concave model cavity and avoids the blanking punch, the blanking punch can fall normally and press the material strip into the concave model cavity to complete the stamping; when the insert block moves upward, the blanking punch moves upward synchronously, and when the insert block gradually separates from the material strip support block, the material strip support block will move inward again under the restoring action of the reset spring, and move again to the top of the concave model cavity, and continue to lift and guide the material strip. The upper die punch seat of this embodiment can cooperate with the lower die base to complete the rapid switching of stamping, lifting and guiding, ensure the continuity of high-speed stamping die production, and extend the service life of the die.

[0097] Embodiment 5

[0098] In practical applications, the operation of the stamping material strip support mechanism requires the cooperation of the upper die punch seat and the lower die base.

[0099] Figure 5 It is a schematic diagram of the structure of the stamping material strip support mechanism in the embodiment of the present application.

[0100] See also Figure 5 In the embodiment of the present application, the stamping material strip support mechanism includes: an upper die punch seat and a lower die base.

[0101] The mold closing process is as follows: when the punching work stroke of the punch press begins, the mold gradually changes from the open mold state to the closed mold state. Driven by the punch press, the insert block 21 of the upper die punch seat 2 gradually approaches the upper die abutment end 132 of the material strip of the lower die base 1. At this time, the support end 131 of the material strip support block 13 is still in the state of lifting the punching material strip. The insert block 21 continues to run, and the lower die abutment end 211 of the insert block 21 begins to contact the upper die abutment end 132 of the material strip support block 13. The material strip support block 13 moves horizontally outward under the dual action of the lower die abutment end 211 of the insert block 21 and the upper die abutment end 132 of the material strip support block 13, and compresses the reset spring 15. Finally, the support end 131 of the material strip support block 13 avoids the blanking punch 24 that falls synchronously with the upper die punch seat, and the support end 131 of the material strip support block 13 is separated from the top of the concave mold cavity 11 to avoid collision with the blanking punch 24 when punching the material. At this time, the material strip has been driven by the feeder to the predetermined position, the blanking step can carry out the punching work normally, and finally the mold reaches the mold closing state.

[0102] The mold opening process is as follows: when the punch press returns to the working stroke, the mold gradually changes from the mold closing state to the mold opening state. During this process, the insert block 21 is gradually separated from the material strip support block 13 under the drive of the punch press. When the lower mold abutment end 211 of the insert block 21 and the upper mold abutment end 132 of the material strip support block 13 are gradually separated, the blanking punch 24 also moves upward synchronously to separate from the concave model cavity 11. The material strip support block 13 moves horizontally inward under the drive of the elastic force of the reset spring 15. Finally, the support end 131 of the material strip support block 13 moves to the top of the concave model cavity 11. The reset spring on the outside of the material strip support block 13 gradually changes from the compressed state to the pre-pressed state, and the mold reaches the mold opening state. At this time, the feeder receives the feeding signal and starts feeding. The support end 131 of the material strip support block 13 lifts the material strip in the feeding state to prevent the material from sinking and causing misfeeding. At the same time, the support end 131 of the material strip support block 13 can also prevent the material already in the concave model cavity 11 from jumping up.

[0103] The following beneficial effects can be obtained from the above fifth embodiment:

[0104] The stamping material strip support mechanism in this embodiment includes the stamping material strip support mechanism described in any one of embodiments one to four. On the basis of the beneficial effects of the above embodiments, this embodiment, through the coordinated operation of the upper die punch seat and the lower die base of the lifting mechanism, retracts the supporting end of the material strip support block of the lower die base when the mold is closed, so that the blanking punch of the upper die punch seat can fall smoothly to complete the stamping, and moves the supporting end of the material strip support block of the lower die base to the top of the concave mold cavity when the mold is opened, so that the material strip can continue to be lifted smoothly and move in a specific direction, avoiding damage caused by the collision between the blanking punch and the supporting end of the material strip support block, and avoiding misdelivery caused by the sinking and deviation of the material strip, thereby extending the service life of the mold and ensuring continuous high-speed operation of the stamping process.

[0105] 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.

[0106] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A stamping strip support mechanism, characterized in that: include: Lower mold base (1); The lower mold base (1) comprises: a concave mold cavity (11), a supporting surface (12) and at least two material strip support blocks (13); The concave model cavity (11) is arranged between the two supporting surfaces (12), or the concave model cavity (11) is surrounded by the supporting surfaces (12); The at least two material strip support blocks (13) are movably arranged on the supporting surface (12) and are distributed on both sides of the material strip transmission direction; The material strip support block (13) can move on the supporting plane formed by the supporting surface (12) to the top of the concave mold cavity (11) or move to the top away from the concave mold cavity (11); The material strip support block (13) is an L-shaped structure; The material strip support block (13) comprises: a support end (131) and an upper mold abutment end (132); The support end (131) is a protruding portion of the L-shaped structure of the material strip support block (13) in the horizontal direction; The support end (131) is provided with an inclined surface; The upper mold abutment end (132) is a protruding portion of the L-shaped structure of the strip support block (13) in the vertical direction; The upper mold abutting end (132) is provided with an inclined surface; It also includes: an upper die punch seat (2); The upper die punch seat comprises: an insert block (21), a fixing plate (22) and an upper pad (23); One end of the insert block (21) passes through an insert block positioning through hole (221) on the fixing plate (22) and is fixed on the upper pad (23), and the other end is a lower mold abutment end (211) provided with an inclined surface; The fixing plate (22) is fixed on the upper pad (23); The inclined surface of the lower mold abutting end (211) matches the inclined surface of the upper mold abutting end (132), so that the inclined surface of the lower mold abutting end (211) can abut against the corresponding inclined surface of the upper mold abutting end (132) when the molds are closed, thereby applying a horizontal force to the material strip support block (13).

2. The stamping material strip support mechanism according to claim 1, characterized in that: The lower die base (1) further comprises: a material strip guide block (14); The material strip guide block (14) is fixed on the supporting surface (12); The material strip guide block (14) is a cavity structure; the cavity structure comprises: a first opening (141) and a second opening (142); the first opening (141) is arranged on the upper surface of the material strip guide block (14); the second opening (142) is arranged on the lower surface of the material strip guide block (14) and on a side surface of the material strip guide block (14) facing the concave mold cavity (11); The upper mold abutting end (132) passes through the first opening (141), and the supporting end (131) passes through the second opening (142) on the side facing the concave mold cavity (11).

3. The stamping strip support mechanism according to claim 2, characterized in that: The lower die base (1) further comprises: a return spring (15) and a stop screw (16); A first spring mounting hole (1321) is provided on the outer side of the upper die abutting end (132); A second spring mounting hole (143) and a stop screw mounting hole (144) are provided in the cavity structure of the material strip guide block (14); One end of the return spring (15) is installed in the first spring installation hole (1321), and the other end is installed in the second spring installation hole (143); The set screw (16) is installed in the set screw installation hole (144).

4. The stamping strip support mechanism according to claim 3, characterized in that: The stop screw mounting hole (144) and the second spring mounting hole (143) are concentric holes, and the hole diameter of the stop screw mounting hole (144) is smaller than or equal to the hole diameter of the second spring mounting hole (143).

5. The stamping material strip support mechanism according to claim 1, characterized in that: The upper die punch seat further comprises: a blanking punch (24); The blanking punch (24) is fixed on the fixing plate (22); The blanking punch (24) matches the concave mold cavity (11).

6. The stamping strip support mechanism according to claim 2, characterized in that: The material strip support block (13) limits the movement trajectory through the first opening (141) and the second opening (142).

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