Stripper plate with segment difference insert core and mold structure

Abstract

The utility model relates to the technical field of stamping dies, and discloses a stripper plate with a segment difference insert core and a die structure, the stripper plate comprises an upper surface and a lower surface which are arranged back to back, the lower surface is upwards provided with a first mounting groove, the segment difference insert core is embedded in the first mounting groove, and the segment difference insert core is arranged on the upper surface of the stripper plate. The upper surface is downwards provided with a second installation groove used for a punch to penetrate through, the second installation groove is communicated with the first installation groove, the first installation groove and the second installation groove are both quadrilateral installation grooves, the length of the first installation groove is larger than that of the second installation groove, and the length of the first installation groove is larger than that of the second installation groove. The width of the first mounting groove is larger than that of the second mounting groove, and a limiting block used for limiting the moving stroke of the segment difference insert core in the vertical direction is further installed in the stripper plate in an embedded mode. The utility model has the following technical effects: the effect of punching the segment difference according to materials is realized, the product is ensured not to deform, and the template strength and the mold stability are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of stamping dies, and particularly relates to a stripper plate with a stepped insert and a die structure. Background Art

[0002] There are two common stamping methods in the existing stepped operation, namely the non-pressing material stepped method and the pressing material stepped method.

[0003] In the non-pressing material stepped method, the stepped punch is directly locked on the stop plate. When the die is closed, the stepped operation is directly performed on the product without pre-pressing the material. This method is applicable to the stepped requirement within one material thickness; refer to Figure 1 , in the pressing material stepped method, through holes for the up and down movement of the stepped insert are formed on the stripper plate. When the die is closed, the punching force is applied to the stepped insert through the stepped punch to achieve the effect of pressing material and making a step. Although this method can be applicable to the stepped requirement above one material thickness, in the operation of products with stepped operations on three sides, the die structure often breaks and other situations occur due to insufficient strength of the stripper plate, affecting the stability of the die. Summary of the Utility Model

[0004] In order to solve the deficiencies of the above-mentioned existing technology, the utility model provides a stripper plate with a stepped insert and a die structure, achieving the effect of pressing material and making a step, ensuring that the product does not deform, and achieving the purpose of ensuring the strength of the template and the stability of the die.

[0005] The technical purpose to be achieved by the utility model is realized through the following technical solutions:

[0006] The utility model provides a stripper plate with a stepped insert, and the stripper plate includes an upper surface and a lower surface which are arranged back to back;

[0007] A first installation groove is formed upward on the lower surface, a stepped insert is embedded in the first installation groove, a second installation groove for the punch to pass through is formed downward on the upper surface, and the second installation groove communicates with the first installation groove;

[0008] Both the first installation groove and the second installation groove are quadrilateral installation grooves, the length of the first installation groove is greater than the length of the second installation groove, and the width of the first installation groove is greater than the width of the second installation groove;

[0009] A limiting block for restricting the moving stroke of the stepped insert in the vertical direction is also embedded and installed inside the stripper plate.

[0010] In some implementations, each of the first mounting grooves is connected to at least two of the second mounting grooves. This relationship ensures the strength of the stripper plate by virtue of the spacing between two adjacent second mounting grooves on the one hand, and also ensures the stamping force of the punch on the stepped insert on the other hand.

[0011] In some implementations, in the vertical direction, the height of the stripper plate is 20 mm and the height of the first mounting groove is 12 mm, effectively ensuring the strength of the stripper plate.

[0012] In some implementations, a first stepped structure is formed at the upper end of one side surface of the stepped insert, and a first limiting groove is formed at the position on the limiting block that contacts the first stepped structure;

[0013] In the vertical direction, the height of the first stepped structure is less than the height of the first limiting groove, so as to achieve the effect of limiting the up and down movement of the first stepped structure through the first limiting groove.

[0014] In some implementations, each of the stepped inserts corresponds to at least two of the limiting blocks, ensuring a stable limiting effect on the stepped insert.

[0015] In some implementations, a first elongated through hole and a second elongated through hole for forming a stepped difference are further formed on the stripper plate;

[0016] The first elongated through hole and the second elongated through hole are respectively located at both ends in the length direction of the first mounting groove, and are applicable to products with stepped differences on three sides, effectively ensuring the strength of the stripper plate.

[0017] The present application further provides a die structure, including an upper die unit, a lower die unit and a punch. The upper die unit is located above the lower die unit;

[0018] The upper die unit includes an upper die base, an upper backing plate, an upper clamping plate, a stop plate and the stripper plate according to any one of the above, which are connected in sequence from top to bottom. The punch passes through the upper clamping plate and the stop plate, and the lower end of the punch is located in the second mounting groove;

[0019] When the upper die unit and the lower die unit are in a closed state, the lower end of the punch abuts against the stepped insert, achieving the effect of pressing the material to form a stepped difference, effectively ensuring that the product does not deform and the stability of the die.

[0020] In some implementations, a second stepped structure is formed at the upper end of one side surface of the punch, and a second limiting groove matching the second stepped structure is formed in the upper clamping plate. Through the mutual cooperation of the second stepped structure and the second limiting groove, a stable limiting and mounting effect is achieved on the punch.

[0021] In some implementations, a guiding unit for closing guidance is provided between the upper die unit and the lower die unit to ensure the accuracy of the closing alignment between the upper die unit and the lower die unit, thereby ensuring the effect of creating a stepped difference.

[0022] In some implementations, the guiding unit includes a guiding post and a guiding sleeve. The lower end of the guiding post sequentially passes through the upper clamping plate, the stop plate, and the stripper plate and is slidably connected to the guiding sleeve. The guiding sleeve is embedded and installed in the lower die unit to achieve the accuracy of the closing alignment between the upper die unit and the lower die unit.

[0023] In summary, the present utility model has at least the following advantages:

[0024] 1. A stripper plate with a stepped difference insert provided by the present utility model forms a first installation groove for embedding the stepped difference insert upward on the lower surface of the stripper plate, and a second installation groove for the punch to pass through downward on the upper surface of the stripper plate. The second installation groove communicates with the first installation groove, enabling the punch to apply punching pressure on the stepped difference insert, achieving the effect of pressing the material to create a stepped difference, ensuring that the product does not deform. And since the length and width of the first installation groove are both greater than those of the second installation groove, compared with the traditional stripper plate structure with a through hole for embedding the stepped difference insert, it has the advantage of better strength, ensuring the stability of the mold.

[0025] 2. A mold structure provided by the present utility model, after applying the stripper plate with a stepped difference insert, achieves the effect of pressing the material to create a stepped difference, ensures that the product does not deform, and has the advantages of better strength of the stripper plate and ensuring the stability of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the stripper plate in the background art;

[0027] Figure 2 is a top view of the stripper plate of Embodiment 1 of the present utility model;

[0028] Figure 3 is a bottom view of the stripper plate of Embodiment 1 of the present utility model;

[0029] Figure 4 and Figure 5 is an assembly schematic diagram of the stripper plate of Embodiment 1 of the present utility model from different perspectives;

[0030] Figure 6 is a schematic structural diagram of the stepped difference insert of Embodiment 1 of the present utility model;

[0031] Figure 7 is a schematic structural diagram of the limit block of Embodiment 1 of the present utility model;

[0032] Figure 8Schematic diagram of the stripping plate according to Embodiment 2 of the present utility model;

[0033] Figure 9 and Figure 10 Cross-sectional view of the mold structure from different perspectives according to Embodiment 3 of the present utility model;

[0034] Figure 11 Schematic diagram of the punch according to Embodiment 3 of the present utility model;

[0035] 100, stripping plate; 110, upper surface; 120, lower surface; 130, first installation groove; 140, second installation groove; 150, first strip-shaped through hole; 160, second strip-shaped through hole;

[0036] 200, step insert; 210, first step structure;

[0037] 300, limit block; 310, first limit groove;

[0038] 400, upper die unit; 410, upper die base; 420, upper backing plate; 430, upper clamping plate; 440, stop plate;

[0039] 500, lower die unit;

[0040] 600, punch; 610, second step structure;

[0041] 700, guiding unit; 710, guiding column; 720, guide bush. Detailed implementation manners

[0042] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments are some but not all of the embodiments of the present utility model.

[0043] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0044] Embodiment 1:

[0045] Please refer to Figures 2 - 7 , a stripping plate with a step insert. The stripping plate 100 is in a plate-like structure and is applied to the mold structure to play the roles of stripping and pressing the material.

[0046] Refer toFigures 2 - 5 The stripper plate 100 includes an upper surface 110 and a lower surface 120 that face away from each other. A first installation groove 130 for embedding the stepped insert 200 is formed upward on the lower surface 120. It can be understood that the first installation groove 130 does not penetrate the upper surface 110, and the shape of the first installation groove 130 matches the shape of the stepped insert 200, so as to stably embed the stepped insert 200 into the first installation groove 130. A second installation groove 140 for the punch to pass through is formed downward on the upper surface 110. The shape of the second installation groove 140 matches the shape of the punch, so as to enable the punch to pass through the second installation groove 140, play a guiding role for the punch, and enable the punch to move up and down relative to the second installation groove 140. The second installation groove 140 communicates with the first installation groove 130. With this communication relationship, the downward punching force generated by the punch can be transmitted to the stepped insert 200, and the stepped insert 200 acts on the product.

[0047] As Figure 3 shown, Y is the length direction, X is the width direction. Both the first installation groove 130 and the second installation groove 140 are quadrilateral installation grooves. The length of the first installation groove 130 is greater than the length of the second installation groove 140, and the width of the first installation groove 130 is greater than the width of the second installation groove 140.

[0048] As introduced in the background technology, in the existing die structure for punching stepped differences, through holes for the up and down movement of the stepped insert are directly opened on the stripper plate. In the operation of products with stepped differences on three sides, a plurality of through holes need to be opened on the stripper plate accordingly, which weakens the strength of the stripper plate. When the ends between the through holes are relatively close, the strength at the adjacent part is the weakest, and it is easy for the stripper plate to break, affecting the stability of the die. Based on this, in this embodiment, the method of connecting the first installation groove 130 and the second installation groove 140 is adopted to replace the through hole method, which not only ensures the punching force of the punch on the stepped insert 200, but also can, by virtue of the size limitation that the length of the first installation groove 130 is greater than the length of the second installation groove 140 and the width of the first installation groove 130 is greater than the width of the second installation groove 140, enable the stripper plate in this embodiment to retain more of its own material, and has the advantage of better structural strength compared with the traditional stripper plate.

[0049] A limit block 300 for restricting the vertical movement stroke of the stepped insert 200 is also embedded and installed inside the stripper plate.

[0050] After the stepped insert 200 is subjected to the downward punching force of the punch, it can produce a downward movement effect relative to the first installation groove 130. To prevent the material thickness of the stepped difference punched by the stepped insert 200 under the action of the punch from exceeding the set value, a limit block 300 is embedded and installed in the stripper plate to restrict the vertical movement stroke of the stepped insert 200.

[0051] In some embodiments, each first installation groove 130 is connected to at least two second installation grooves 140. This relationship can, on the one hand, ensure the strength of the stripper plate by means of the spacing between two adjacent second installation grooves 140, and on the other hand, also ensure the stamping force of the punch on the stepped insert 200.

[0052] For example, two second installation grooves 140 are connected to the upper end of each first installation groove 130. The two second installation grooves 140 are arranged at intervals. One stepped insert 200 is embedded and installed in each first installation groove 130, and punches are inserted through both second installation grooves 140. That is, each stepped insert 200 receives the stamping force from two punches.

[0053] To ensure the force balance of the stepped insert 200, the two second installation grooves 140 can be respectively located at both ends of the length direction of the first installation groove 130, so that the two ends of the stepped insert 200 receive the same force. In addition, the spacing between the two first installation grooves 130 can be made relatively large to further ensure the strength of the stripper plate.

[0054] In some embodiments, in the vertical direction, the height of the stripper plate is 20 mm, and the height of the first installation groove 130 is 12 mm, effectively ensuring the strength of the stripper plate.

[0055] It should be noted that in this embodiment, the height of the stripper plate is not limited to 20 mm, nor is the height of the first installation groove 130 limited to 12 mm. The height of the stripper plate and the height of the first installation groove 130 can be adjusted according to actual needs. The height values listed here are only for illustration. The stripper plate in this embodiment is different from the traditional stripper plate structure with through holes. Specifically, the first installation groove 130 and the second installation groove 140 are both formed on the stripper plate. Given that the height of the stripper plate is 20 mm and the height of the first installation groove 130 is 12 mm, it can be known that the height of the second installation groove 140 is 8 mm. Since the length of the first installation groove 130 is greater than the length of the second installation groove 140, and the width of the first installation groove 130 is greater than the width of the second installation groove 140, it can be seen that within the 8 mm distance downward from the upper surface 110 of the stripper plate, compared with the traditional stripper plate structure with through holes, more of the stripper plate's own material is retained, thus ensuring the strength of the stripper plate.

[0056] For the forming method of the first installation groove 130 and the second installation groove 140, wire cutting can be used to ensure the accuracy of embedding the stepped insert 200 and inserting the punch.

[0057] Reference Figure 6 and Figure 7, in some embodiments, a first step structure 210 is formed at the upper end of one side surface of the step insert 200, and a first limit groove 310 is formed at the position on the limit block 300 that contacts the first step structure 210; in the vertical direction, the height of the first step structure 210 is less than the height of the first limit groove 310, so as to achieve the effect of limiting the up-and-down movement of the first step structure 210 through the first limit groove 310.

[0058] Specifically, the opening of the first limit groove 310 faces the first step structure 210, so that the first step structure 210 is embedded in the first limit groove 310. In the vertical direction, the first limit groove 310 includes an upper wall surface and a lower wall surface arranged oppositely, and the first step structure 210 includes an upper end surface and a lower end surface arranged oppositely. The first step structure 210 can move between the upper wall surface and the lower wall surface of the first limit groove 310 under the influence of an external force. When the upper end surface of the first step structure 210 contacts the upper wall surface of the first limit groove 310, it indicates that the step insert 200 has moved to the highest position. When the lower end surface of the first step structure 210 contacts the lower wall surface of the first limit groove 310, it indicates that the step insert 200 has moved to the lowest position. Thus, the function of restricting the moving stroke of the step insert 200 in the vertical direction is realized.

[0059] Furthermore, each step insert 200 corresponds to at least two limit blocks 300 to ensure a stable limiting effect on the step insert 200.

[0060] For example, each step insert 200 corresponds to two limit blocks 300, and the two limit blocks 300 are respectively located at both ends of the length direction of the step insert 200, so that the step insert 200 is subjected to a balanced limiting force.

[0061] A stripping plate with a step insert provided by the present utility model forms a first installation groove 130 for embedding the step insert 200 upward on the lower surface 120 of the stripping plate, and forms a second installation groove 140 for the punch to pass through downward on the upper surface 110 of the stripping plate, and the second installation groove 140 communicates with the first installation groove 130, so that the punch acts on the step insert 200 with punching force, realizing the effect of punching a step by pressing the material, ensuring that the product does not deform, and because the length and width of the first installation groove 130 are both larger than the length and width of the second installation groove 140, compared with the traditional stripping plate structure with a through hole for embedding the step insert 200, it has the advantage of better strength, ensuring the stability of the mold.

[0062] Embodiment 2:

[0063] The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the stripping plate of the present utility model. Please refer to Figure 8 .

[0064] In this embodiment, a first strip-shaped through hole 150 and a second strip-shaped through hole 160 for forming a step are further formed on the stripper plate 100; the first strip-shaped through hole 150 and the second strip-shaped through hole 160 are respectively located at both ends of the length direction of the first installation groove 130. This stripper plate structure is applicable to products with steps formed on three sides, effectively ensuring the strength of the stripper plate.

[0065] Traditionally, for the stripper plate applied to products with steps formed on three sides, three strip-shaped through holes are usually formed corresponding to the step-forming positions of the product. Considering the structure of conventional products with steps formed on three sides, the three strip-shaped through holes are distributed in an enclosed manner, resulting in insufficient strength of the stripper plate and prone to fracture problems. In this embodiment, for the step-forming position corresponding to one side, the first installation groove 130 is connected to the second installation groove 140. Compared with the traditional stripper plate structure, more material of the stripper plate itself is retained, thus ensuring the strength of the stripper plate.

[0066] Embodiment 3:

[0067] Based on Embodiment 1 or 2, this embodiment provides a mold structure. Please refer to Figures 9 - 11 .

[0068] A mold structure includes an upper mold unit 400, a lower mold unit 500, and a punch 600. The upper mold unit 400 is located above the lower mold unit 500. The lower mold unit 500 is used to support and position the product. The upper mold unit 400 is used to connect with an external driving force. Under the action of the external driving force, the upper mold unit 400 moves downward to be in a closed state with the lower mold unit 500, or the upper mold unit 400 moves upward to be in an open state with the lower mold unit 500.

[0069] The upper mold unit 400 includes an upper mold base 410, an upper backing plate 420, an upper clamping plate 430, a stop plate 440, and the stripper plate in Embodiment 1 or 2, which are connected in sequence from top to bottom. The upper mold base 410 is used for clamping and bearing force. The upper backing plate 420 is used to pad the punch to prevent the upper end of the punch from damaging the upper mold base 410. The upper clamping plate 430 is used for clamping the punch. The stop plate 440 is used to pad the stripper plate. The stripper plate is used to guide the punch and has the functions of stripping and pressing the material.

[0070] The punch 600 passes through the upper clamping plate 430 and the stop plate 440, and the lower end of the punch 600 is located in the second installation groove 140. When the upper mold unit 400 and the lower mold unit 500 are in the closed state, the stripper plate 100 first holds the product, and the lower end of the punch 600 abuts against the step insert 200, driving the step insert 200 to move downward to form a step on the product, achieving the effect of forming a step while pressing the material, effectively ensuring that the product does not deform and the stability of the mold.

[0071] Further, a second step structure 610 is formed at the upper end of one side surface of the punch 600, and a second limiting groove (not shown in the figure) matching the second step structure 610 is formed in the upper clamping plate 430. The second step structure 610 is embedded in the second limiting groove. Through the mutual cooperation of the second step structure 610 and the second limiting groove, a stable limiting and installation effect is achieved on the punch.

[0072] In some embodiments, a guiding unit 700 for closing and guiding is provided between the upper die unit 400 and the lower die unit 500. The guiding unit 700 can ensure the accuracy of the closing and alignment of the upper die unit 400 and the lower die unit 500, and further ensure the effect of forming a step difference.

[0073] Further, the guiding unit 700 includes a guiding column 710 and a guiding sleeve 720. The lower end of the guiding column 710 sequentially passes through the upper clamping plate 430, the stop plate 440 and the stripper plate and is slidably connected to the guiding sleeve 720. The guiding sleeve 720 is embedded and installed in the lower die unit 500. Through the cooperation relationship between the guiding column 710 and the guiding sleeve 720, the accuracy of the closing and alignment of the upper die unit 400 and the lower die unit 500 is achieved.

[0074] A mold structure provided by the present utility model, after applying a stripper plate with a stepped insert, realizes the effect of forming a step difference by pressing the material, ensures that the product does not deform, and has the advantages of better stripper plate strength and ensuring the stability of the mold.

[0075] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0076] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

[0077] Furthermore, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

Claims

1. A stripper plate with a stepped insert, characterized in that, The stripper plate (100) includes an upper surface (110) and a lower surface (120) arranged opposite to each other; A first installation groove (130) is formed upward on the lower surface (120), a step insert (200) is embedded in the first installation groove (130), a second installation groove (140) for the punch to pass through is formed downward on the upper surface (110), and the second installation groove (140) communicates with the first installation groove (130); Both the first installation groove (130) and the second installation groove (140) are quadrilateral installation grooves. The length of the first installation groove (130) is greater than the length of the second installation groove (140), and the width of the first installation groove (130) is greater than the width of the second installation groove (140); A limit block (300) for restricting the vertical movement stroke of the step insert (200) is also embedded and installed inside the stripper plate (100).

2. The stripper plate with a stepped insert according to claim 1, wherein Each of the first installation grooves (130) is communicated with at least two of the second installation grooves (140).

3. The stripping plate with a stepped insert according to claim 1, characterized in that, In the vertical direction, the height of the stripper plate is 20 mm, and the height of the first installation groove (130) is 12 mm.

4. The stripper plate with a stepped insert according to claim 1, characterized in that, A first step structure (210) is formed at the upper end of one side surface of the step insert (200), and a first limit groove (310) is formed at the position on the limit block (300) that contacts the first step structure (210); In the vertical direction, the height of the first step structure (210) is less than the height of the first limit groove (310).

5. The stripper plate with a stepped insert according to claim 4, characterized in that, Each of the step inserts (200) corresponds to at least two of the limit blocks (300).

6. The stripper plate with a stepped insert according to any one of claims 1-5, characterized in that The stripper plate (100) is also provided with a first strip-shaped through hole (150) and a second strip-shaped through hole (160) for forming a step difference; The first strip-shaped through hole (150) and the second strip-shaped through hole (160) are respectively located at both ends in the length direction of the first installation groove (130).

7. A mold structure, characterized in that, It includes an upper die unit (400), a lower die unit (500) and a punch (600), and the upper die unit (400) is located above the lower die unit (500); The upper die unit (400) includes an upper die base (410), an upper backing plate (420), an upper clamping plate (430), a stop plate (440) and the stripper plate (100) according to any one of claims 1-6, which are connected in sequence from top to bottom. The punch (600) passes through the upper clamping plate (430) and the stop plate (440), and the lower end of the punch (600) is located in the second installation groove (140); When the upper die unit (400) and the lower die unit (500) are in the closed state, the lower end of the punch (600) abuts against the step insert (200).

8. The mold structure according to claim 7, characterized in that, A second step structure (610) is formed at the upper end of one side surface of the punch (600), and a second limit groove matching the second step structure (610) is formed inside the upper clamping plate (430).

9. The mold structure according to claim 7, wherein A guiding unit (700) for closing and guiding is provided between the upper die unit (400) and the lower die unit (500).

10. The mold structure according to claim 9, characterized in that, The guiding unit (700) includes a guiding column (710) and a guiding sleeve (720). The lower end of the guiding column (710) sequentially passes through the upper clamping plate (430), the stop plate (440) and the stripping plate (100), and then is slidably connected with the guiding sleeve (720). The guiding sleeve (720) is embedded and installed in the lower die unit (500).

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