Shaping die

Abstract

The utility model discloses a shaping die which comprises an upper die and a lower die, and a corner shaping assembly and a straight edge shaping assembly are arranged on a lower clamping plate of the lower die. The corner shaping assembly is arranged corresponding to the corner of the C-shaped bent wrap angle of the product, and the straight edge shaping assembly is arranged corresponding to the straight edge of the C-shaped bent wrap angle of the product. In the mold closing state, the lower stripping plate assembly and the upper stripping plate assembly are matched to position a product, the inward-pushing shaping male mold and the outward-pushing shaping female mold are matched to shape a corner part, and the straight-edge shaping insert blocks shape a straight-edge part. The utility model provides a reshaping die, a lower clamping plate of a lower die is provided with a corner reshaping assembly and a straight edge reshaping assembly, in a die closing state, an upper stripping plate assembly of an upper die and a lower stripping plate assembly of the lower die are matched to position a product, an inward-pushing reshaping male die and an outward-pushing reshaping female die are matched to reshape a corner, and a straight edge reshaping insert reshapes a straight edge part; therefore, the angle forming quality and the straightness of the straight edge part of the C-shaped bending wrap angle of a plate product can be improved.

Description

Technical Field

[0001] The utility model relates to the field of stamping dies, in particular to a shaping die for shaping a C-shaped bending corner of a product. Background Art

[0002] With the popularity of borderless products such as TVs and tablets, the top, left, and right sides of the back panel parts are usually required to have a reverse bend toward the inside of the product, also known as a C-shaped bend corner, such as Figure 1 and Figure 2 The TV back panel 1 shown has C-shaped bent corners 2 on three sides: the day side, the left side, and the right side.

[0003] The forming process of a sheet with a C-shaped bend angle usually includes the following steps in sequence: the first step: stretching, the second step: shaping (i.e. forming pits, raised ribs, etc. on the surface of the sheet), the third step: cutting angles; the fourth step: 90° bending; the fifth step: 45° bending; the sixth step: side pushing. The forming of a C-shaped bend angle mainly involves the steps of cutting angles, 90° bending, 45° bending and side pushing.

[0004] After the three-side side push forming of the sheet with C-shaped bending angle 2, there are usually two adjacent sides (such as Figure 1 The intersection of the C-shaped bent corner 2 on the center side (the left side, the center side (the right side) and the left side (the center side) (referred to as corner 2.1) has a large gap, steps, burrs and other defects, and the straightness of the straight edge 2.2 of the C-shaped bent corner 2 does not meet the standard (the straightness within 300mm is required to be less than 0.25mm).

[0005] In order to solve these two problems, it is urgent to design a shaping die to shape the C-shaped bending corner after side push forming, so as to improve the corner quality and straight edge straightness of the C-shaped bending corner.

[0006] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In view of the problems pointed out in the background technology, the utility model provides a shaping die for shaping the C-shaped bending corner after side push forming, so as to improve the corner quality and straightness of the straight edge of the C-shaped bending corner.

[0008] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0009] In some embodiments of the present application, a shaping mold is provided, comprising:

[0010] An upper mold, which includes an upper stripping assembly;

[0011] The lower die comprises a lower die base, a lower clamping plate floating up and down on the lower die base, a lower stripping assembly, a corner shaping assembly and a straight edge shaping assembly arranged on the lower clamping plate;

[0012] The corner shaping assembly corresponds to the corner setting of the product C-shaped bending angle, including an inner push shaping male mold, an inner push driving component for driving the inner push shaping male mold to move horizontally outward relative to the corner, an outer push shaping female mold and an outer push driving component for driving the outer push shaping female mold to move horizontally inward relative to the corner;

[0013] The straight edge shaping component is arranged corresponding to the straight edge portion of the C-shaped bending corner of the product, and comprises a straight edge shaping entry block, wherein the straight edge shaping entry block has a horizontal shaping top surface arranged corresponding to the straight edge portion;

[0014] In the closed mold state, the lower stripping assembly cooperates with the upper stripping assembly to position the product, the inward push shaping male mold and the outward push shaping female mold cooperate to shape the corner, and the straight edge shaping block shapes the straight edge.

[0015] In some embodiments of the present application, the inner push driving component is an inner inserting knife vertically arranged on the lower die seat, which is arranged on the inner side of the inner push shaping male die, and the top of the outer side surface of the inner inserting knife has a first inclined surface;

[0016] The outward push driving component is an outward inserting knife vertically arranged on the lower die seat, which is arranged on the outside of the outward push shaping female die, and the top of the inner side surface of the outward inserting knife has a second inclined surface, and the second inclined surface and the first inclined surface have opposite inclination directions;

[0017] The corner shaping assembly further comprises an inner push seat, which is slidably arranged on the lower clamping plate and located on the outer side of the inner inserting knife, the inner push seat has a third inclined surface matched with the first inclined surface, and the inner push shaping male mold is arranged on the inner push seat;

[0018] The corner shaping assembly also includes an outward push seat, which is slidably arranged on the lower clamping plate and located on the inner side of the outer inserting knife. The outward push seat has a fourth inclined surface that matches the second inclined surface. The outward push shaping male mold is arranged on the outward push seat.

[0019] In some embodiments of the present application, the lower edge of the third inclined surface and the lower edge of the fourth inclined surface are located at the same height level;

[0020] The height position of the upper edge of the first inclined surface is higher than the height position of the upper edge of the second inclined surface.

[0021] In some embodiments of the present application, in the mold closing state, the inner insert knife and the inner push seat are in contact and abutment with each other in a vertical plane, and the outer insert knife and the outer push seat are in contact and abutment with each other in a vertical plane.

[0022] In some embodiments of the present application, the corner shaping assembly further includes an inner reset component, which is connected to the inner push seat and is used to drive the inner push seat to reset during the mold opening process;

[0023] The corner shaping assembly also includes an external reset component, which is connected to the external push-out seat and is used to drive the external push-out seat to reset during the mold opening process.

[0024] In some embodiments of the present application, the inner reset component and the outer reset component are both spring screws, and the lower clamp is correspondingly fixed with an inner stop block and an outer stop block, and the spring screws are telescopically installed on the inner stop block and the outer stop block, respectively, and the threaded ends thereof are respectively connected to the inner push seat and the outer push seat.

[0025] In some embodiments of the present application, the straight edge shaping block is a segmented structure, including a plurality of straight edge shaping sub-blocks arranged in sequence along the extension direction of the straight edge portion, and the straight edge shaping sub-blocks are detachably mounted on the lower clamping plate.

[0026] In some embodiments of the present application, a block mounting plate is detachably mounted on the lower clamping plate, and the straight edge shaping sub-block is detachably mounted on the block mounting plate.

[0027] In some embodiments of the present application, the straight edge shaping sub-block includes a straight edge shaping portion and a positioning connection portion located outside the straight edge shaping portion, the horizontal shaping top surface is the top surface of the straight edge shaping portion, and the positioning connection portion is detachably connected to the block mounting plate.

[0028] In some embodiments of the present application, a block entry positioning plate is provided on the lower clamping plate, and the block entry positioning plate is located on the outside of the straight edge shaping portion, and is provided with a positioning groove adapted to the positioning connection portion, and the positioning connection portion is positioned in the positioning groove.

[0029] Compared with the prior art, the advantages and positive effects of the utility model are:

[0030] The utility model provides a shaping mold, on which a lower clamping plate of a lower mold is provided with a corner shaping component and a straight edge shaping component, the corner shaping component comprises an inward-pushing shaping male mold, an inward-pushing driving component, an outward-pushing shaping female mold and an outward-pushing driving component, and the straight edge shaping component comprises a straight edge shaping entry block, and the straight edge shaping entry block has a horizontal shaping top surface arranged corresponding to the straight edge portion; in a closed mold state, an upper stripping assembly of an upper mold cooperates with a lower stripping assembly of a lower mold to position a product, the inward-pushing shaping male mold and the outward-pushing shaping female mold cooperate to shape the corner, and the straight edge shaping entry block shapes the straight edge portion, thereby improving the corner forming quality and the straightness of the straight edge portion of a C-shaped bending angle of a plate product.

[0031] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0033] Figure 1 is a schematic diagram of the structure of a television back panel with a C-shaped bent corner according to an embodiment;

[0034] Figure 2 for Figure 1 A magnified view of part A;

[0035] Figure 3 is a schematic diagram of a cross-sectional structure of a television back panel with a C-shaped bent corner according to an embodiment;

[0036] Figure 4 for Figure 3 A magnified view of part B;

[0037] Figure 5 A top view of a lower mold part of a shaping mold according to an embodiment after being rotated 90 degrees to the left horizontally;

[0038] Figure 6 It is a schematic structural diagram of a shaping mold and one of the corners of the C-shaped bending angle of the back panel of a television set in a mold opening state according to an embodiment;

[0039] Figure 7 for Figure 6 Enlarged view of part C;

[0040] Figure 8It is a schematic structural diagram of a shaping mold and one of the corners of the C-shaped bending corner of the back panel of a television set corresponding to each other during the mold closing process according to an embodiment;

[0041] Fig. 9 for Figure 8 A magnified view of the D portion;

[0042] Fig.10 It is a schematic structural diagram of a shaping mold and one of the corners of the C-shaped bending corner of the back panel of a television set in a closed mold state according to an embodiment;

[0043] Fig.11 for Fig.10 A magnified view of part E;

[0044] Fig.12 It is a schematic structural diagram of a shaping mold and a straight edge portion of a C-shaped bent corner of a TV back panel corresponding to each other in a mold opening state according to an embodiment;

[0045] Fig.13 for Fig.12 Magnified view of part F;

[0046] Fig.14 It is a schematic structural diagram of a shaping mold and a straight edge portion of a C-shaped bent corner of a TV back panel corresponding to each other in a mold-closed state according to an embodiment;

[0047] Fig.15 for Fig.14 Enlarged view of the G section.

[0048] Reference numerals:

[0049] 1. TV back panel; 2. C-shaped bend corner; 2.1. Corner; 2.2. Straight edge;

[0050] 100, upper die; 110, upper support plate; 120, upper pad; 130, upper die seat; 140, upper pad; 150, upper stripping plate assembly; 151, main body upper stripping plate; 152, edge upper stripping plate;

[0051] 200, lower die; 210, lower support plate; 220, lower pad; 230, lower die seat; 240, lower pad; 250, lower clamping plate; 260, lower template; 270, lower stripping plate assembly; 271, main body lower stripping plate; 272, side lower stripping plate; 280, equal height sleeve;

[0052] 300, corner shaping assembly; 310, inner push shaping male mold; 311, rectangular convex shaping part; 320, inner insert knife; 321, first inclined plane; 330, outer push shaping female mold; 331, L-shaped notch shaping part; 340, outer insert knife; 341, second inclined plane; 350, inner push seat; 351, third inclined plane; 360, outer push seat; 361, fourth inclined plane; 370, inner spring screw; 380, outer spring screw; 390, inner stopper; 3100, outer stopper;

[0053] 400, straight edge shaping assembly; 410, straight edge shaping sub-block; 411, horizontal shaping top surface; 412, straight edge shaping part; 413, positioning connection part; 420, block installation plate; 430, block positioning plate. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only 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 creative work are within the scope of protection of this application.

[0055] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are 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, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0056] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0057] In the description of this application, it should be noted that, 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 indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0058] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0059] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0060] For a sheet with a C-shaped bend, the forming process usually includes the following steps: the first step, stretching; the second step, shaping (i.e. forming pits, protrusions, etc. on the surface of the sheet); the third step, cutting; the fourth step: 90° bending; the fifth step: 45° bending; the sixth step: side pushing. The forming of the C-shaped bend on the sheet mainly involves the steps of cutting, 90° bending, 45° bending and side pushing.

[0061] by Figure 1 Taking the TV back panel 1 shown as an example, which is roughly rectangular, C-shaped bent corners 2 are formed on the three sides of the TV back panel 1, namely, the top side, the left side and the right side.

[0062] After the C-shaped bend corner 2 is formed by side push, there are usually defects such as too large joint gap, steps, burrs, etc. at the intersection of the two adjacent sides of the C-shaped bend corner 2 (hereinafter referred to as the corner 2.1), and the straightness of the straight edge 2.2 of the C-shaped bend corner 2 does not meet the standard.

[0063] In order to solve the above problems, the present application proposes a shaping die to shape the C-shaped bent corner 2 after side push forming.

[0064] Reference Figures 5 to 15 In some embodiments of the present application, a shaping mold includes an upper mold 100 and a lower mold 200 .

[0065] The upper die 100 at least includes an upper supporting plate 110, an upper pad 120, an upper die base 130, an upper pad 140 and an upper stripping assembly 150 which are arranged in sequence from top to bottom. The upper supporting plate 110 is used to connect the entire upper die 100 to the punch slide, the upper die base 130 is connected to the upper supporting plate 110 as a whole through a plurality of upper pads 120, the upper pad 140 is connected to the bottom surface of the upper die base 130, and the upper stripping assembly 150 is connected to the bottom surface of the upper pad 140.

[0066] For ease of processing, the upper stripping plate assembly 150 is a split structure, including a main body upper stripping plate 151 corresponding to the middle main body of the TV back plate 1 and a plurality of side upper stripping plates 152 corresponding to the sides of the TV back plate 1. The inner contour shape of the upper stripping plate assembly 150 is adapted to the outer surface of the TV back plate 1.

[0067] The lower mold 200 includes at least a lower support plate 210, a lower foot 220, a lower mold base 230, a lower pad 240, a lower clamping plate 250, and a lower mold plate 260, which are arranged in sequence from bottom to top. The lower clamping plate 250 is provided with a lower stripping assembly 270, a corner shaping assembly 300 and a straight edge shaping assembly 400.

[0068] The lower support plate 210 is fixedly arranged, and the lower mold base 230 is connected to the lower support plate 210 as a whole through multiple lower pads 220. The lower clamping plate 250 is arranged on the lower mold base 230, and it can float up and down relative to the lower mold base 230. The lower pad 240 is arranged on the upper surface of the lower clamping plate 250, and the lower mold plate 260, the lower stripping assembly 270, the corner shaping assembly 300 and the straight edge shaping assembly 400 are arranged on the lower clamping plate 250.

[0069] Similarly, for ease of processing, the lower release plate assembly 270 is a split structure, including a main body lower release plate 271 corresponding to the middle main body of the TV back plate 1 and a plurality of side lower release plates 272 corresponding to the sides of the TV back plate 1. The inner contour shape of the lower release plate assembly 270 is adapted to the inner surface of the TV back plate 1.

[0070] In some embodiments of the present application, the lower clamping plate 250 is connected to the lower die base 230 via a contour sleeve 280 , which enables it to float up and down relative to the lower die base 230 .

[0071] The corner shaping component 300 is arranged corresponding to the corner 2.1 of the C-shaped bending corner 2 of the product. Figure 1Taking the rectangular TV back panel 1 with C-shaped bent corners 2 on three sides as an example, the corresponding outer contour of the shaping mold in some embodiments of the present application is a rectangle, and the outer contour of the molding area corresponding to the TV back panel 1 is a rectangle. During shaping, the TV back panel 1 is inverted and set on the lower stripping component 270 of the lower mold 200, and the corner shaping components 300 are set at two locations, specifically at the positions corresponding to the two corners 2.1 of the C-shaped bent corners 2 of the TV back panel 1, as shown in FIG. Figure 5 shown.

[0072] The two corner shaping components 300 have the same structure and are symmetrically arranged. Specifically, taking one of the corner shaping components 300 as an example, Figures 6 to 11 As shown, it includes an inner push shaping male mold 310, an inner push driving component, an outer push shaping female mold 330 and an outer push driving component. The inner push shaping male mold 310, the inner push driving component, the outer push shaping female mold 330 and the outer push driving component are arranged at the corner 2.1 of the C-shaped bending corner 2 along the diagonal line of the rectangular mold.

[0073] The inward push shaping male mold 310 and the inward push driving component are located on the inner side of the corner 2.1 of the C-shaped bending angle 2. The inward push shaping male mold 310 has a rectangular raised shaping portion 311 adapted to the inner space of the corner 2.1 of the C-shaped bending angle 2. The outward push shaping female mold 330 and the outward push driving component are located on the outer side of the corner 2.1 of the C-shaped bending angle 2. The outward push shaping male mold has an L-shaped notch shaping portion 331 adapted to the outer contour of the corner 2.1 of the C-shaped bending angle 2.

[0074] The inner push driving component is used to drive the inner push shaping male mold 310 to move horizontally outward relative to the corner 2.1 of the C-shaped bending corner 2, and the outer push driving component is used to drive the outer push shaping female mold 330 to move horizontally inward relative to the corner 2.1 of the C-shaped bending corner 2. The movement directions of the inner push shaping male mold 310 and the outer push shaping female mold 330 are opposite and relative, both along the angle bisector direction of the corner 2.1.

[0075] The straight edge shaping component 400 is arranged corresponding to the straight edge portion 2.2 of the C-shaped bending corner 2 of the product. Figure 1 Taking the rectangular TV back panel 1 with three C-shaped bent corners 2 as an example, the straight edge shaping components 400 are arranged at three locations, specifically at the positions corresponding to the three straight edge portions 2.2 of the C-shaped bent corners 2 of the TV back panel 1, as shown in FIG. Figure 5 shown.

[0076] The structures of the three straight edge shaping components 400 are the same. Specifically, taking one of the straight edge shaping components 400 as an example, Figure 5 , Figures 12 to 15As shown, the straight edge shaping component 400 includes a straight edge shaping block, which has a horizontal shaping top surface 411 arranged corresponding to the straight edge portion 2.2 of the C-shaped bending angle 2. During shaping, the horizontal shaping top surface 411 of the straight edge shaping block contacts the straight edge portion 2.2 of the C-shaped bending angle 2. If there is a straightness protrusion on the straight edge portion 2.2 of the C-shaped bending angle 2, it can be squeezed upward and flattened under the action of this contact force.

[0077] In the mold opening state, the TV back panel 1 is first placed on the lower stripping assembly 270 of the lower mold 200 in a horizontal inverted posture (ie, the C-shaped bent corner 2 faces downward), and the lower clamping plate 250 is in an upward floating state.

[0078] When the mold is closed, the punch press drives the upper mold 100 downward, the upper stripping assembly 150 first contacts the TV back panel 1, the lower stripping assembly 270 cooperates with the upper stripping assembly 150 to position the TV back panel 1, the upper mold 100 continues to move downward, the upper mold 100 presses the TV back panel 1, the lower clamping plate 250 and the components on the lower clamping plate 250 downward, the inward push driving component drives the inward push shaping male mold 310 to move outward, and the outward push driving component drives the outward push shaping female mold 330 to move inward.

[0079] When the mold is in the closed position, the inner push shaping male mold 310 and the outer push shaping female mold 330 cooperate to act on the corner 2.1 of the C-shaped bent corner 2 to shape the corner 2.1. At the same time, the horizontal shaping top surface 411 of the straight edge shaping block contacts the straight edge 2.2 of the C-shaped bent corner 2 to shape the straightness raised part on the straight edge 2.2.

[0080] A shaping mold in an embodiment of the present application can shape the corner 2.1 and the flat portion of the C-shaped bent corner 2 of a metal sheet product such as a TV back panel 1, thereby improving the bending quality of the product corner 2.1 and the straightness of the straight edge 2.2.

[0081] In some embodiments of the present application, Figures 6 to 11 As shown, the inner push driving component is an inner inserting knife 320 vertically arranged on the lower mold base 230 , the inner inserting knife 320 is arranged on the inner side of the inner push shaping male mold 310 , and the top of the outer side surface of the inner inserting knife 320 has a first inclined surface 321 .

[0082] The external push driving component is an external inserting knife 340 vertically arranged on the lower mold base 230. The external inserting knife 340 is arranged on the outside of the external push shaping female mold 330. The top of the inner side surface of the external inserting knife 340 has a second inclined surface 341. The second inclined surface 341 and the first inclined surface 321 have opposite inclination directions. Figure 6 Taking the perspective shown as an example, the second inclined surface 341 is inclined downward, and the first inclined surface 321 is inclined upward. The second inclined surface 341 and the first inclined surface 321 are correspondingly located on opposite sides of the outer inserting blade 340 and the inner inserting blade 320 .

[0083] Correspondingly, the corner shaping assembly 300 further includes an inner push seat 350 which is slidably disposed on the lower clamping plate 250 and is located outside the inner insert knife 320 . The inner push seat 350 has a third inclined surface 351 which cooperates with the first inclined surface 321 . The inner push shaping male mold 310 is disposed on the inner push seat 350 .

[0084] The lower edge stripping plate 272 is also arranged on the inner push seat 350, specifically located above the inner push shaping male mold 310, so as to fit with the inner wall of the four sides of the upwardly protruding TV back panel 1.

[0085] The corner shaping assembly 300 further includes an outward push seat 360 which is slidably disposed on the lower clamping plate 250 and located inside the outer inserting knife 340 . The outward push seat 360 has a fourth inclined surface 361 which cooperates with the second inclined surface 341 . The outward push shaping male mold is disposed on the outward push seat 360 .

[0086] The bottom end of the inner insert knife 320 is fixed on the lower mold base 230, and the bottom end of the outer insert knife 340 is fixed on the lower mold base 230. The lower clamping plate 250 is provided with through holes to avoid the inner insert knife 320 and the outer insert knife 340 from vertically extending upward. In the mold opening state, since the lower clamping plate 250 is in a floating state, the inner insert knife 320 and the outer insert knife 340 are smaller in size than the lower clamping plate 250, or do not extend upward, the first inclined surface 321 of the inner insert knife 320 does not contact or only contacts with a small area of ​​the third inclined surface 351 of the inner push seat 350, and the second inclined surface 341 of the outer insert knife 340 does not contact or only contacts with a small area of ​​the fourth inclined surface 361 of the outer push seat 360, such as Figure 7 shown.

[0087] When the mold is closed, the punch press drives the upper mold 100 downward until the upper mold 100 presses the TV back panel 1. When the lower clamping plate 250 and the components on the lower clamping plate 250 move downward, the lower clamping plate 250 moves downward relative to the inner insert knife 320 and the outer insert knife 340, and the inner insert knife 320 and the outer insert knife 340 gradually extend upward relative to the lower clamping plate 250, so that the first inclined surface 321 of the inner insert knife 320 contacts and cooperates with the third inclined surface 351 of the inner push seat 350, and the second inclined surface 341 of the outer insert knife 340 contacts and cooperates with the fourth inclined surface 361 of the outer push seat 360. As the lower clamping plate 250 continues to descend, the first inclined surface 321 and the third inclined surface 351 slide relative to each other, and the second inclined surface 341 and the fourth inclined surface 361 slide relative to each other, so that the inner insert knife 320 drives the inner push seat 350 to drive the inner push shaping male mold 310 to move outward, and the outer insert knife 340 drives the outer push seat 360 to drive the outer push shaping female mold 330 to move inward, until the mold is closed in place, the inner push shaping male mold 310 and the outer push shaping female mold 330 cooperate to act on the corner 2.1 of the C-shaped bending angle 2.

[0088] By adopting the above structure, the closing action of the mold itself can realize the movement of the inner push shaping male mold 310 and the outer push shaping female mold 330, and it is driven by a mechanical structure, has a simple structure, and is easy to maintain.

[0089] In some embodiments of the present application, the lower edge of the third inclined surface 351 of the inner push seat 350 and the lower edge of the fourth inclined surface 361 of the outer push seat 360 are located on the same height plane; the height position of the upper edge of the first inclined surface 321 is higher than the height position of the upper edge of the second inclined surface 341.

[0090] Specifically, Figure 6 and Figure 7 As shown, the top surface of the lower clamping plate 250 is a horizontal surface, the bottom surfaces of the inner pushing seat 350 and the outer pushing seat 360 are horizontal surfaces, the third inclined surface 351 is formed below a vertical side surface of the inner pushing seat 350, and the third inclined surface 351 is connected with the horizontal bottom surface of the inner pushing seat 350; the fourth inclined surface 361 of the outer pushing seat 360 is formed below a vertical side surface of the outer pushing seat 360, and is connected with the horizontal bottom surface of the outer pushing seat 360, then the lower edge of the third inclined surface 351 of the inner pushing seat 350 and the lower edge of the outer pushing seat 360 are located on the same height horizontal plane, that is, on the top surface of the lower clamping plate 250.

[0091] The bottom ends of the inner insert knife 320 and the outer insert knife 340 are fixed on the top surface of the lower mold base 230. The top surface of the lower mold base 230 is a horizontal plane. The height of the inner insert knife 320 is greater than that of the outer insert knife 340. The first inclined surface 321 of the inner insert knife 320 is formed on the top of a vertical side surface thereof, and the second inclined surface 341 of the outer insert knife 340 is formed on the top of a vertical side surface thereof. Since the height of the inner insert knife 320 is greater than that of the outer insert knife 340, the height position of the upper edge of the first inclined surface 321 (i.e., the height position of the horizontal top surface of the inner insert knife 320) is higher than the height position of the upper edge of the second inclined surface 341 (i.e., the height position of the horizontal top surface of the outer insert knife 340), that is, there is a height difference between the upper edge of the first inclined surface 321 and the upper edge of the second inclined surface 341.

[0092] In the mold closing process, when the upper mold 100 presses the TV back plate 1, the lower clamping plate 250, and the inner push seat 350 and the outer push seat 360 on the lower clamping plate 250 move downward, the first inclined surface 321 of the inner inserting knife 320 will first contact and cooperate with the third inclined surface 351 of the inner push seat 350, and the inner inserting knife 320 will first push the inner push seat 350 to drive the inner push shaping male mold 310 and the edge lower stripping plate 272 to move outward, so that the lower stripping plate assembly 270 cooperates with the upper stripping plate assembly 150 to first position the product, such as Fig. 9As shown, the positioning reliability of the product is ensured, which is beneficial to improving the product shaping quality; then as the upper mold 100 continues to descend, the second inclined surface 341 of the external insert knife 340 contacts and cooperates with the fourth inclined surface 361 of the external push seat 360, so that the external push shaping female mold 330 moves inward, and cooperates with the internal push shaping male mold 310 to shape the corner part 2.1.

[0093] In some embodiments of the present application, in the mold closing state, the inner insert knife 320 and the inner push seat 350 are in contact with each other in a vertical plane, and the outer insert knife 340 and the outer push seat 360 are in contact with each other in a vertical plane. Fig.11 That is, when the mold is completely closed and the corner 2.1 is being shaped, the inner insert knife 320 can effectively prevent the inner push seat 350 from retreating, and the outer insert knife 340 can effectively prevent the outer push seat 360 from retreating, thereby effectively preventing the inner push shaping male mold 310 and the outer push shaping female mold 330 from retreating, thereby ensuring the shaping quality of the corner 2.1.

[0094] In some embodiments of the present application, the corner shaping assembly 300 also includes an internal reset component, which is connected to the inner push seat 350 and is used to drive the inner push seat 350 to reset during the mold opening process, thereby driving the inner push shaping male mold 310 and the edge lower release plate 272 on the inner push seat 350 to reset.

[0095] In some embodiments of the present application, the corner shaping assembly 300 further includes an external reset component, which is connected to the external push-out seat 360 and is used to drive the external push-out seat 360 to reset during the mold opening process, thereby driving the external push-out shaping mother mold 330 to reset.

[0096] By providing the internal reset component and the external reset component, the internal push seat 350 and the external push seat 360 can be automatically reset when the mold is opened after shaping, thereby realizing the automatic reset of the internal push shaping male mold 310 and the external push shaping female mold 330, thereby improving the shaping efficiency.

[0097] In some embodiments of the present application, the internal reset component is an internal spring screw 370, and an internal stop block 390 is correspondingly fixed on the lower clamping plate 250. The internal spring screw 370 is telescopically mounted on the internal stop block 390, and its threaded end is connected to the inner push seat 350.

[0098] In some embodiments of the present application, the external reset component is also an external spring screw 380, and an external stop block 3100 is correspondingly fixed on the lower clamping plate 250. The external spring screw 380 is telescopically mounted on the external stop block 3100, and its threaded end is connected to the external push seat 360.

[0099] In some embodiments of the present application, the inner spring screw 370 is located on the inner side of the inner stopper 390, the inner stopper 390 is located on the inner side of the inner insert knife 320, the inner insert knife 320 is located on the inner side of the inner push seat 350, and the inner push seat 350 is located on the inner side of the inner push plastic mold 310; the outer spring screw 380 is located on the outer side of the outer stopper 3100, the outer stopper 3100 is located on the outer side of the outer insert knife 340, the outer insert knife 340 is located on the outer side of the outer push seat 360, and the outer push seat 360 is located on the inner side of the inner push plastic mold 310. The seat 360 is located on the outside of the outward-pushing shaping female mold 330; the components of the corner shaping assembly 300 are arranged along the diagonal of the rectangular mold at the corner 2.1 of the C-shaped bent corner 2, and the inner spring screw 370 and the outer spring screw 380 respectively pull the inner push seat 350 and the outward push seat 360 sideways, which is conducive to the miniaturized design of the inner push shaping male mold 310 and the outward push shaping female mold 330, so that the extrusion deformation area is small, the required spring screw side pulling force is small, and it is easy to shape.

[0100] When the mold is closed, the lower clamping plate 250 moves downward, the inner insert knife 320 drives the inner push seat 350 to move outward, and the outer insert knife 340 drives the outer push seat 360 to move inward, driving the inner spring screw 370 and the outer spring screw 380 to deform. When the mold is closed, the deformation is maximum; when the mold is opened, the lower clamping plate 250 moves upward to reset, driving the corner shaping component 300 upward, the fourth inclined surface 361 of the outer push seat 360 and the second inclined surface 341 of the outer push shaping female mold 330 gradually separate, and the deformation recovery force of the outer spring screw 380 drives the outer push seat 360 to reset gradually; the third inclined surface 351 of the inner push seat 350 and the first inclined surface 321 of the inner push shaping male mold 310 gradually separate, and the deformation recovery force of the inner spring screw 370 drives the inner push seat 350 to reset gradually.

[0101] In some embodiments of the present application, Figure 5 As shown, the straight edge shaping block is a segmented structure, including a plurality of straight edge shaping sub-blocks 410 arranged in sequence along the extension direction of the straight edge portion 2.2. The straight edge shaping sub-blocks 410 are detachably installed on the lower clamping plate 250. When the corresponding part of the block is damaged, the corresponding straight edge shaping sub-block 410 can be replaced by disassembling it without disassembling the entire straight edge shaping block, thereby simplifying the maintenance operation and reducing the mold cost.

[0102] In some embodiments of the present application, the straight edge shaping sub-block 410 is mounted on the lower clamping plate 250 by screws a.

[0103] Since the horizontal shaping top surface 411 of the straight edge shaping block needs to be in contact with the straight edge 2.2 when shaping the straight edge 2.2, the horizontal shaping top surface 411 of the straight edge shaping block needs to be relatively high in levelness, and thus the machining accuracy of the straight edge shaping block installation location needs to be relatively high. In order to facilitate the control of the machining accuracy of the straight edge shaping block installation location, in some embodiments of the present application, such as Fig.13 and Fig.15 As shown, a block mounting plate 420 is detachably mounted on the lower clamping plate 250 , and a straight edge shaping sub-block 410 is detachably mounted on the top surface of the block mounting plate 420 .

[0104] The block installation plate 420 is only corresponding to the straight edge shaping block setting, and its size is relatively much smaller than the entire lower clamping plate 250. Therefore, the processing accuracy of the top surface is easy to control during processing, and the processing cost is relatively low.

[0105] The block mounting plate 420 can also be mounted on the lower clamping plate 250 by screws.

[0106] In some embodiments of the present application, the straight edge shaping sub-block 410 includes a straight edge shaping portion 412 and a positioning connection portion 413 located outside the straight edge shaping portion 412, the horizontal shaping top surface 411 is the top surface of the straight edge shaping portion 412, and the positioning connection portion 413 is detachably connected to the block mounting plate 420 so that the positioning connection portion does not affect the shaping of the straight edge portion 2.2 by the straight edge shaping portion.

[0107] In some embodiments of the present application, Fig.13 and Fig.15 As shown, a block insertion positioning plate 430 is provided on the lower clamping plate 250, and the block insertion positioning plate 430 is located on the outer side of the straight edge shaping portion, and is provided with a positioning groove adapted to the positioning connection portion, and the positioning connection portion is positioned in the positioning groove.

[0108] The block positioning plate 430 plays a positioning role in the installation of each straight edge shaping sub-block 410, which can further facilitate the disassembly and replacement of the straight edge shaping sub-block 410.

[0109] In some embodiments of the present application, in addition to the TV back panel 1, the plate with the C-shaped bent corner 2 can also be a tablet computer back panel, etc., and no specific limitation is made here.

[0110] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0111] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A shaping mold, characterized in that: include: An upper mold, which includes an upper stripping assembly; The lower die comprises a lower die base, a lower clamping plate floating up and down on the lower die base, a lower stripping assembly, a corner shaping assembly and a straight edge shaping assembly arranged on the lower clamping plate; The corner shaping assembly corresponds to the corner setting of the product C-shaped bending angle, including an inner push shaping male mold, an inner push driving component for driving the inner push shaping male mold to move horizontally outward relative to the corner, an outer push shaping female mold and an outer push driving component for driving the outer push shaping female mold to move horizontally inward relative to the corner; The straight edge shaping component is arranged corresponding to the straight edge portion of the C-shaped bending corner of the product, and comprises a straight edge shaping entry block, wherein the straight edge shaping entry block has a horizontal shaping top surface arranged corresponding to the straight edge portion; In the closed mold state, the lower stripping assembly cooperates with the upper stripping assembly to position the product, the inward push shaping male mold and the outward push shaping female mold cooperate to shape the corner, and the straight edge shaping block shapes the straight edge.

2. The shaping mold according to claim 1, characterized in that: The inner push driving component is an inner inserting knife vertically arranged on the lower die seat, which is arranged on the inner side of the inner push shaping male die, and the top of the outer side surface of the inner inserting knife has a first inclined surface; The outward push driving component is an outward inserting knife vertically arranged on the lower die seat, which is arranged on the outside of the outward push shaping female die, and the top of the inner side surface of the outward inserting knife has a second inclined surface, and the second inclined surface and the first inclined surface have opposite inclination directions; The corner shaping assembly further comprises an inner push seat, which is slidably arranged on the lower clamping plate and located on the outer side of the inner inserting knife, the inner push seat has a third inclined surface matched with the first inclined surface, and the inner push shaping male mold is arranged on the inner push seat; The corner shaping assembly also includes an outward push seat, which is slidably arranged on the lower clamping plate and located on the inner side of the outer inserting knife. The outward push seat has a fourth inclined surface that matches the second inclined surface. The outward push shaping male mold is arranged on the outward push seat.

3. The shaping mold according to claim 2, characterized in that: The lower edge of the third inclined surface and the lower edge of the fourth inclined surface are located on the same height level; The height position of the upper edge of the first inclined surface is higher than the height position of the upper edge of the second inclined surface.

4. The shaping mold according to claim 2, characterized in that: In the mold closing state, the inner insert knife and the inner push seat are in contact and abutment with each other in a vertical plane, and the outer insert knife and the outer push seat are in contact and abutment with each other in a vertical plane.

5. The shaping mold according to claim 2, characterized in that: The corner shaping assembly also includes an inner reset component, which is connected to the inner push seat and is used to drive the inner push seat to reset during the mold opening process; The corner shaping assembly also includes an external reset component, which is connected to the external push-out seat and is used to drive the external push-out seat to reset during the mold opening process.

6. The shaping mold according to claim 5, characterized in that: The inner reset component and the outer reset component are both spring screws, and the lower clamping plate is correspondingly fixed with an inner stop block and an outer stop block. The spring screws are respectively telescopically installed on the inner stop block and the outer stop block, and their threaded ends are respectively connected to the inner push seat and the outer push seat.

7. The shaping mold according to claim 1, characterized in that: The straight edge shaping entry block is a segmented structure, comprising a plurality of straight edge shaping sub-entry blocks arranged in sequence along the extension direction of the straight edge portion, and the straight edge shaping sub-entry blocks are detachably mounted on the lower clamping plate.

8. The shaping mold according to claim 7, characterized in that: The lower clamping plate is detachably mounted with a block mounting plate, and the straight edge shaping sub-block is detachably mounted on the block mounting plate.

9. The shaping mold according to claim 8, characterized in that: The straight edge shaping sub-block includes a straight edge shaping portion and a positioning connection portion located outside the straight edge shaping portion, the horizontal shaping top surface is the top surface of the straight edge shaping portion, and the positioning connection portion is detachably connected to the block mounting plate.

10. The shaping mold according to claim 9, characterized in that: The lower clamping plate is provided with a block insertion positioning plate, the block insertion positioning plate is located at the outer side of the straight edge shaping portion, and is provided with a positioning groove adapted to the positioning connection portion, and the positioning connection portion is positioned in the positioning groove.

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