Stroke hook of stamping die

Abstract

The utility model relates to a stroke hook of a stamping die, which comprises an upper die, a lower die and a lower die, the stripper plate is arranged above the upper die; the buffer assembly is arranged between the stripper plate and the upper die; the guide assembly is arranged between the stripper plate and the upper die, is used for guiding the lifting stroke of the stripper plate, and is arranged on the stripper plate; the stroke hook assembly comprises a guiding hook and a protruding block, the guiding hook is arranged on the stripper plate, the stripper plate can be well hung on a step on the upper die base through the stripper plate, the buffering assembly, the guiding assembly, the guiding hook and the protruding block, auxiliary supporting can be carried out on the stripper plate in the mode, and the stripper plate is prevented from being damaged. And the tensile force borne by the guide assembly and the buffer assembly is reduced, so that the guide cylinder is prevented from being broken, the guide cylinder is not prone to damage, normal use of the mold is guaranteed, and production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to a stamping mold travel hook. Background Art

[0002] Stamping is a pressure processing method that uses a mold installed on a press to apply pressure to the material at room temperature to cause it to separate or plastically deform, thereby obtaining the desired parts.

[0003] The stamping die is usually divided into two parts: the upper die and the lower die. The upper die generally includes the die handle, guide sleeve, punch, pad, fixing plate, screws, pins, upper die seat (upper support) and stripper plate. The lower die generally includes the lower die seat, guide plate (side guide plate), die, baffle plate, receiving plate, guide column, screws, pins and other parts.

[0004] When the stamping die is in production, as the die is stamped at a high frequency, the nitrogen spring repeatedly expands and contracts violently, and the stripper plate is squeezed together with the nitrogen spring. Since the upper die stripper plate itself has a certain weight, the guide cylinder used for stroke limit is prone to breakage after long-term use, and even the die may explode, resulting in abnormal production and affecting production efficiency.

[0005] In view of the above problems, a stamping die travel hook is now designed. Utility Model Content

[0006] The embodiment of the present application provides a stamping die stroke hook to solve the problem in the related art that, due to the certain weight of the upper die stripping plate itself, the guide cylinder used for stroke limiting is prone to breakage after long-term use, and even the die may explode, resulting in the inability to produce normally and affecting production efficiency.

[0007] In a first aspect, a stamping die stroke hook is provided, comprising:

[0008] An upper die, on which a plurality of punches for impacting parts are arranged;

[0009] a stripper plate, which is arranged above the upper mold;

[0010] A buffer assembly is disposed between the stripper plate and the upper mold;

[0011] The guide assembly is arranged between the stripper plate and the upper mold and is used to guide the stripper plate to rise and fall.

[0012] A travel hook assembly, which is arranged on the stripping plate;

[0013] The travel hook assembly includes a guide hook and a protrusion. The guide hook is arranged on the stripping plate. A guide hole (a) is opened on the upper mold. The protrusion is arranged inside the guide hole (a). The other end of the guide hook extends into the guide hole (a) and is engaged with the protrusion to support the stripping plate.

[0014] In some embodiments, the upper die includes a cover plate and an upper die base that are connected to each other, and a plurality of punches are disposed on the upper die base.

[0015] In some embodiments, the buffer assembly is a plurality of nitrogen springs, and the plurality of nitrogen springs are arranged in a rectangular shape above the upper mold base, and the other end of the nitrogen spring is connected to the stripping plate.

[0016] In some embodiments, the guide assembly includes an inner guide pin and an outer guide sleeve, the inner guide pin is arranged at the bottom of the stripper plate, the outer guide sleeve is embedded in the upper mold base, and the other end of the inner guide pin extends into the outer guide sleeve.

[0017] In some embodiments, both ends of the guide hook are L-shaped, and the guide hook is connected to the stripper plate by bolts.

[0018] In some embodiments, the number of the travel hook assemblies is at least four groups, and the four groups of travel hook assemblies are arranged in a rectangular shape on the stripping plate.

[0019] In some embodiments, the number of the guide holes (a) corresponds to the number of travel hook assemblies, the protrusions are arranged inside the corresponding guide holes (a), and the end of the guide hook away from the stripping plate is snap-fitted with the corresponding protrusion.

[0020] In some embodiments, a buffer layer is provided on a side of the protrusion close to the guide hook, and the guide hook abuts against the buffer layer.

[0021] The embodiment of the present application provides a stamping die travel hook, which can hang the stripper plate on the step on the upper die base through the stripper plate, buffer assembly, guide assembly, guide hook and protrusion. This method can provide auxiliary support for the stripper plate, reduce the tension on the guide assembly and the buffer assembly, thereby avoiding the guide cylinder from breaking, making it not easy to be damaged, ensuring the normal use of the mold, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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.

[0023] Figure 1 Schematic diagram of the three-dimensional structure provided in the embodiment of the present application Figure 1 ;

[0024] Figure 2 Schematic diagram of the three-dimensional structure provided in the embodiment of the present application Figure 2 ;

[0025] Figure 3 A three-dimensional schematic diagram of a guide assembly provided in an embodiment of the present application;

[0026] Figure 4 A top view provided for an embodiment of the present application;

[0027] Figure 5 Provided in the embodiments of this application Figure 4 Sectional view at CC in the middle;

[0028] Figure 6 A three-dimensional schematic diagram of the closed state of the upper mold and the lower mold provided in an embodiment of the present application.

[0029] In the figure: 1. upper mold; 1a. guide hole; 11. cover plate; 12. upper mold base; 2. stripper plate; 3. buffer assembly; 4. guide assembly; 41. inner guide post; 42. outer guide sleeve; 5. travel hook assembly; 51. guide hook; 52. bump; 6. buffer layer; 8. lower mold; 81. lower mold base; 82. nitrogen spring 2; 83. guide post; 84. reset block; 85. floating block. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] The embodiment of the present application provides a stamping die stroke hook, which can solve the problem in the related art that since the upper die stripping plate itself has a certain weight, the guide cylinder used for stroke limiting is prone to breakage after long-term use, and even the die may explode, resulting in the inability to produce normally and affecting production efficiency.

[0032] See also Figure 1 - Figure 3A stamping die travel hook includes; an upper die 1, a stripper plate 2, a buffer assembly 3, a guide assembly 4 and a travel hook assembly 5, wherein the upper die 1 is provided with a plurality of punches for impacting parts; the stripper plate 2 is arranged above the upper die 1; the buffer assembly 3 is arranged between the stripper plate 2 and the upper die 1; the guide assembly 4 is arranged between the stripper plate 2 and the upper die 1, and is used to guide the stripper plate 2 to rise and fall, and the travel hook assembly 5 is arranged on the stripper plate 2; the travel hook assembly 5 includes a guide hook 51 and a protrusion 52, the guide hook 51 is arranged on the stripper plate 2, a guide hole 1a is opened on the upper die 1, and the protrusion 52 is arranged inside the guide hole 1a, and the other end of the guide hook 51 extends to the inside of the guide hole 1a, and is engaged with the protrusion 52 to support the stripper plate 2.

[0033] When the mold is stamping, the upper mold 1 moves downward, one end of the guide hook 51 supports the stripping plate 2, and the protrusion 52 limits the guide hook 51, thereby fixing and supporting the stripping plate 2. When the upper mold 1 and the lower mold are closed, under the elastic support of the buffer component 3, the guide hook 51 and the stripping plate 2 are squeezed, the stripping plate 2 and the guide hook 51 move upward, and the material is stamped and formed, and the guide component 4 plays a guiding role. When one stamping is completed, the upper mold 1 moves upward, the buffer component 3 returns to its natural state, and the stripping plate 2 opens a certain stroke under the action of the buffer component 3, and the guide hook 51 returns to its original position. At the same time, the protrusion 52 limits the guide hook 51, which can well hang the stripping plate 2 on the step on the upper mold base 12. This method can provide auxiliary support for the stripping plate 2 and reduce the tension on the guide component 4, thereby avoiding the breakage of the guide cylinder, making it not easy to be damaged, ensuring the normal use of the mold, and improving production efficiency.

[0034] It can be understood that the stripping plate 2 is provided with a through hole adapted to the punch so that the punch can extend outward.

[0035] The steps on the upper die base 12 refer to some uneven steps arranged on the die base of the die in order to realize different functions or adjust different parts of the die. These steps can play the role of positioning, supporting, guiding, etc. to ensure the normal operation of the die.

[0036] Specifically, the upper die 1 in this embodiment includes a cover plate 11 and an upper die base 12 that are connected to each other, and a plurality of punches are arranged on the upper die base 12 .

[0037] The cover plate 11 supports the upper die base 12, and a plurality of punches punch and form the material.

[0038] Among them, the number of upper mold bases 12 can be set as needed, and the number of stripping plates 2, buffer components 3 and guide components 4 is set correspondingly.

[0039] Preferably, the buffer assembly 3 in this embodiment is a plurality of nitrogen springs, and the plurality of nitrogen springs are arranged in a rectangular shape above the upper mold base 12 , and the other end of the nitrogen spring is connected to the stripping plate 2 .

[0040] When the upper mold 1 moves downward and the upper mold 1 and the lower mold are closed, the guide hook 51 and the stripper plate 2 are squeezed, and the nitrogen spring is compressed.

[0041] Specifically, since the nitrogen spring needs to withstand greater pressure and impact during the stamping process, if its stroke is too short or too long, it may cause the nitrogen spring to compress or stretch prematurely, affecting its normal function and thus affecting the stamping quality and accuracy; therefore, when the nitrogen spring is compressed, since the nitrogen spring cannot have pre-compression, the stroke of the guide hook 51 must be at least 1.0 mm greater than the stroke of the nitrogen spring.

[0042] When the nitrogen spring is compressed, the guide hook 51 can move up and down first, so as to prevent the nitrogen spring from being subjected to excessive impact and pressure. At the same time, the extra 1.0 mm stroke can also provide a certain buffer space for the nitrogen spring, ensuring that the nitrogen spring can maintain stable and reliable performance throughout the entire working process to achieve a stable stamping effect.

[0043] Specifically, the guide assembly 4 in this embodiment includes an inner guide column 41 and an outer guide sleeve 42, the inner guide column 41 is arranged at the bottom of the stripping plate 2, the outer guide sleeve 42 is embedded in the upper mold base 12, and the other end of the inner guide column 41 extends to the inside of the outer guide sleeve 42.

[0044] It can be understood that a group of slide grooves are relatively arranged inside the outer guide sleeve 42, and a group of sliders are relatively arranged outside the inner guide column 41. One end of the slider extends to the inside of the corresponding slide groove. Through the mutual sliding cooperation of the slider and the slide groove, the lifting and lowering trajectory of the inner guide column 41 can be limited, and the stripping plate 2 can be auxiliary supported at the same time.

[0045] In addition, a second through hole that is interconnected is provided between the cover plate 11 and the upper die base 12 , and the outer guide sleeve 42 is disposed inside the second through hole, so that one end of the inner guide column 41 has sufficient space to extend.

[0046] During the movement of the stripping plate 2 , the inner guide pillar 41 is driven to slide inside the outer guide sleeve 42 .

[0047] Preferably, Figure 2 and Figure 5 As shown, in this embodiment, both ends of the guide hook 51 are L-shaped, and the guide hook 51 is connected to the stripping plate 2 by bolts.

[0048] Since both ends of the guide hook 51 are L-shaped, the top end of the guide hook 51 can be hooked with the stripper plate 2 and then fixed by bolts. When the nitrogen spring returns to its natural state, the bottom end of the guide hook 51 can be engaged with the protrusion 52, thereby supporting the stripper plate 2, reducing the tension received by the buffer assembly 3, and limiting and fixing the stripper plate 2.

[0049] The guide hole 1 a is formed between the cover plate 11 and the upper die base 12 , so that one end of the guide hook 51 has sufficient space to extend.

[0050] Specifically, if Figure 1 and Figure 3 As shown, in this embodiment, the number of the travel hook components 5 is at least four groups, and the four groups of travel hook components 5 are arranged on the stripping plate 2 in a rectangular shape.

[0051] Since the stripper plate 2 and the travel hook assembly 5 have a certain weight, at least four groups of travel hook assemblies 5 are provided to keep the stripper plate 2 balanced by the travel hook assembly 5.

[0052] It can be understood that the number of the guide holes 1a corresponds to the number of the travel hook assemblies 5, the protrusions 52 are arranged inside the corresponding guide holes 1a, and the end of the guide hook 51 away from the stripping plate 2 is snap-fitted with the corresponding protrusion 52.

[0053] Preferably, Figure 5 As shown, in this embodiment, a buffer layer 6 is provided on one side of the protrusion 52 close to the guide hook 51 , and the guide hook 51 abuts against the buffer layer 6 .

[0054] It should be noted that the buffer layer 6 is a buffering rubber, which can reduce the friction between the guide hook 51 and the protrusion 52, thereby reducing the wear between the two and reducing noise.

[0055] It should be noted that, in the present embodiment, a lower mold 8 is also included, which includes a lower mold base 81, a plurality of nitrogen springs 82, a plurality of guide columns 83, a reset block 84 and a plurality of floating blocks 85. The plurality of floating blocks 85 are arranged on the lower mold 8, and the floating blocks 85 are provided with through holes adapted to the lower mold 8. The plurality of nitrogen springs 82 are arranged between the corresponding dry floating blocks 85 and the lower mold 8, the plurality of guide columns 83 are arranged between the corresponding dry floating blocks 85 and the lower mold 8, and the bottom ends of the guide columns 83 and the nitrogen springs 82 extend to the interior of the lower mold 8, and the reset block 84 is arranged on the floating block 85.

[0056] As the upper mold 1 is pressed down, the reset block 84 drives the floating block 85 to be pressed down through the guidance of the guide column 83, and the nitrogen spring 82 is compressed at the same time. As the press completes a stroke, the upper mold 1 moves upward, and the floating block 85 floats under the action of the nitrogen spring 82. The molded material is lifted by the floating block 85 and slides out of the mold tilted under the action of its own gravity; this cycle is repeated to achieve linked production.

[0057] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0058] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0059] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A stamping die travel hook, characterized in that: include: An upper die (1) is provided with a plurality of punches for impacting parts; A stripper plate (2) arranged above the upper mold (1); A buffer assembly (3) disposed between the stripper plate (2) and the upper mold (1); A guide assembly (4) is arranged between the stripper plate (2) and the upper mold (1) and is used to guide the stripper plate (2) to rise and fall. A travel hook assembly (5), which is arranged on the stripping plate (2); The travel hook assembly (5) comprises a guide hook (51) and a protrusion (52); the guide hook (51) is arranged on the stripping plate (2); a guide hole (1a) is provided on the upper mold (1); the protrusion (52) is arranged inside the guide hole (1a); the other end of the guide hook (51) extends into the guide hole (1a) and is engaged with the protrusion (52) to support the stripping plate (2).

2. A stamping die travel hook according to claim 1, characterized in that: The upper die (1) comprises a cover plate (11) and an upper die base (12) which are connected to each other, and a plurality of punches are arranged on the upper die base (12).

3. A stamping die travel hook as claimed in claim 2, characterized in that: The buffer assembly (3) is a plurality of nitrogen springs, which are arranged in a rectangular shape above the upper die seat (12), and the other end of the nitrogen spring is connected to the stripping plate (2).

4. A stamping die travel hook according to claim 1, characterized in that: The guide assembly (4) comprises an inner guide column (41) and an outer guide sleeve (42), wherein the inner guide column (41) is arranged at the bottom of the stripping plate (2), and the outer guide sleeve (42) is embedded in the upper die base (12), and the other end of the inner guide column (41) extends into the outer guide sleeve (42).

5. A stamping die travel hook as claimed in claim 2, characterized in that: Both ends of the guide hook (51) are L-shaped, and the guide hook (51) is connected to the stripping plate (2) via bolts.

6. A stamping die travel hook according to claim 1, characterized in that: The number of the travel hook components (5) is at least four groups, and the four groups of the travel hook components (5) are arranged on the stripping plate (2) in a rectangular shape.

7. A stamping die travel hook according to claim 1, characterized in that: The number of the guide holes (1a) corresponds to the number of the travel hook assemblies (5), the protrusions (52) are arranged inside the corresponding guide holes (1a), and the end of the guide hook (51) away from the stripping plate (2) is snap-fitted with the corresponding protrusion (52).

8. A stamping die travel hook as claimed in claim 1, characterized in that: A buffer layer (6) is provided on one side of the protrusion (52) close to the guide hook (51), and the guide hook (51) abuts against the buffer layer (6).

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