CN215882786U - Forming die and punching machine - Google Patents

Abstract

The application of the utility model provides a forming die and a punching machine, wherein the forming die comprises: the male die is provided with a first buckling surface, a hollow groove is formed in the first buckling surface, a convex hitting structure is arranged in the hollow groove, and the top end of the convex hitting structure is higher than the first buckling surface; the female die is provided with a second buckling surface, and a groove structure matched with the shape of the convex striking structure is arranged on the second buckling surface; the buffer glue layer is arranged in the hollow groove, is arranged around the convex hitting structure and protrudes out of the first buckling surface. The punch comprises the forming die. The application provides a forming die and punching machine can realize treating the higher protruding height of hitting of the protruding thing, has avoided treating the protruding thing of hitting to crumple and the production of the phenomenon of breaking, hits protruding quality better.

Description

Forming die and punching machine

Technical Field

The application relates to the technical field of dies, in particular to a forming die and a punching machine.

Background

The forming die is used for carrying out convex striking operation on the sheet-shaped object so as to process a specific convex striking shape on the object to be convex struck, and the production and application requirements of the object to be convex struck are met. The forming die is mainly used for carrying out convex processing on hard paper, and can also be applied to convex processing of materials such as plastic sheets, cloth and the like.

The forming die in the prior art has the following defects when the paper is subjected to convex striking treatment: first, the maximum height at which the impact can be performed is limited under the condition that the sheet thickness is specified and the impact shape is specified, and for example, the maximum height at which the impact can be performed can be only 0.5mm in the case of a sheet having a thickness of 0.45mm in the specified impact shape. Secondly, in the embossing process, for the paper with smaller thickness, the paper is easy to wrinkle. Third, the paper portions at the rounded corners at both ends of the striking structure are easily broken.

SUMMERY OF THE UTILITY MODEL

In view of the above technical problems, an object of the present application is to provide a forming mold to solve the technical problems existing in the forming mold in the prior art that the embossing height is limited, the paper is easily wrinkled, and the paper part at the round corner of the embossing structure is easily broken.

Another object of the application provides a punching machine, and it adopts above-mentioned forming die, can realize treating higher protruding height of beating the convex object and better beating protruding quality.

In order to solve the above technical problem, the present application provides a forming die, which includes:

the male die is provided with a first buckling surface, a hollow groove is formed in the first buckling surface, a convex hitting structure is arranged in the hollow groove, and the top end of the convex hitting structure is higher than the first buckling surface;

the female die is provided with a second buckling surface, and a groove structure matched with the shape of the convex striking structure is arranged on the second buckling surface;

the buffer glue layer is arranged in the hollow groove, the buffer glue layer is arranged around the protruding structure in a surrounding mode, and the buffer glue layer protrudes out of the first buckling surface.

Optionally, the striking structure includes a striking convex strip group disposed at a bottom of the hollow groove, the groove structure includes a striking convex groove group disposed on the second fastening surface, the striking convex groove group and the striking convex strip group are disposed in a one-to-one correspondence, and a notch size of the striking convex groove group is larger than an outer ring size of the striking convex strip group.

Optionally, the width of the striking groove group is 0.4mm greater than the width of the striking strip group, and the length of the striking groove group is 0.2mm greater than the length of the striking strip group.

Optionally, forming die can be used for hitting protruding paper the tank bottom in fretwork groove with paper texture extending direction is vertically hit the both ends of protruding strip group and be provided with tensile boss, the height that stretches the boss is less than the degree of depth in fretwork groove, the buffer glue layer cover in on the tensile boss.

Optionally, the striking convex group includes a lower supporting portion and an upper striking convex portion, the cross section of the striking convex portion is arc-shaped, two ends of the striking convex portion are arc surfaces, the cross section of the striking convex groove group is arc-shaped, two ends of the striking convex groove group are arc surfaces, the cross section radius of the striking convex groove group is greater than the cross section radius of the striking convex portion, and the radius of the arc surfaces at two ends of the striking convex groove group is greater than the radius of the arc surfaces at two ends of the striking convex portion.

Optionally, the notch edge of the striking groove group is provided with a chamfer.

Optionally, the hitting convex strip group comprises two longitudinal convex strips longitudinally arranged in parallel at intervals at the bottom of the hollow groove and two transverse convex strips transversely arranged in parallel at intervals;

the convex striking groove group comprises two convex striking longitudinal grooves and two convex striking transverse grooves which are respectively matched with the longitudinal convex strips and the transverse convex strips;

the radius of the arc surface at the two ends of the transverse convex strip is larger than that of the arc surface at the two ends of the longitudinal convex strip.

Optionally, a plurality of first positioning holes are formed in the male die, a plurality of second positioning holes are formed in the female die, the plurality of first positioning holes and the plurality of second positioning holes are aligned one by one, and the male die and the female die are positioned by bolts inserted into the first positioning holes and the second positioning holes.

Optionally, the forming die further comprises a heating device, the heating device is connected with the male die and the female die, and the heating device is used for heating the male die and the female die in the convex striking process.

A stamping press comprising a forming die according to any preceding claim.

The utility model has the beneficial effects that:

the utility model provides a forming die, which is characterized in that a hollow groove is formed in a male die, a projection hitting structure and a buffer glue layer are arranged in the hollow groove, a paper sheet is clamped between the buffer glue layer and a female die to be projected in the projection hitting process, the edge of the paper sheet is compressed by the buffer glue layer, and the edge of the paper sheet can be effectively prevented from being wrinkled; the buffering glue film has elasticity, has certain cushioning effect to the deformation of paper, can avoid the paper to break to because the buffering effect of buffering glue film, can set the height that hits protruding structure higher, increased the paper and can hit protruding maximum height.

The punching machine provided by the utility model adopts the punching die, can realize higher projection height and better projection quality of the object to be projected, and meets the punching requirement.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a forming die provided in a first embodiment of the present application;

fig. 2 is a schematic view of a disassembled structure of a forming die provided in a first embodiment of the present application;

fig. 3 is a schematic structural view of a male die of a forming die according to a first embodiment of the present application;

FIG. 4 is an enlarged view at A in FIG. 3;

fig. 5 is a schematic structural view of a female mold of a forming mold according to a first embodiment of the present application;

fig. 6 is a schematic structural view of a male die of a forming die provided in a second embodiment of the present application;

fig. 7 is a schematic structural diagram of a concave die of a forming die according to a second embodiment of the present application.

The figures are labeled as follows:

100. a male die; 101. a first fastening surface; 102. hollowing out the grooves; 103. striking the convex strip group; 1031. longitudinal convex strips; 10311. a longitudinal convex strip supporting part; 10312. a longitudinal convex strip striking part; 1032. transverse convex strips; 10321. a transverse convex strip supporting part; 10322. striking convex part with transverse convex strip; 104. stretching the boss; 105. a first positioning hole; 106. a first fastening hole; 107. a limiting table; 108. calibrating the hole;

200. a female die; 201. a second fastening surface; 202. hitting the convex groove group; 2021. convex longitudinal grooves are punched; 2022. striking the convex transverse groove; 203. a second positioning hole; 204. a second fastening hole; 205. calibrating the boss;

300. a buffer glue layer; 301. perforating the longitudinal convex strips; 302. the transverse convex strips are perforated.

The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings. With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the recitation of an element by the phrase "comprising an … …" does not exclude the presence of additional like elements in the process, method, article, or apparatus that comprises the element, and further, where similarly-named elements, features, or elements in different embodiments of the disclosure may have the same meaning, or may have different meanings, that particular meaning should be determined by their interpretation in the embodiment or further by context with the embodiment.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context. Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, species, and/or groups thereof. The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.

It should be understood that, although the steps in the flowcharts in the embodiments of the present application are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, in different orders, and may be performed alternately or at least partially with respect to other steps or sub-steps of other steps.

It should be noted that, in this document, step numbers such as XX, etc. are used for the purpose of more clearly and briefly describing the corresponding contents, and do not constitute a substantial limitation on the sequence, and those skilled in the art may perform XX first and then XX in specific implementations, but these should be within the scope of the present application.

It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for the convenience of description of the present application, and have no specific meaning in themselves. Thus, "module", "component" or "unit" may be used mixedly.

First embodiment

As shown in fig. 1 to 5, the present embodiment provides a forming die for embossing a thin plate-shaped object having a certain toughness. Fig. 1 shows a schematic structural view of a forming die provided in the present embodiment;

fig. 2 is a schematic view showing a disassembled structure of the forming die provided in the present embodiment; fig. 3 is a schematic structural view showing a male die of the forming die provided in the present embodiment; FIG. 4 shows an enlarged view at A in FIG. 3; fig. 5 shows a schematic structural diagram of the concave die of the forming die provided in the present embodiment. The forming die can be used for embossing objects including but not limited to hard paperboards, plastic sheets, resin boards or cloth, and the like, so that the objects to be embossed meet the use or subsequent processing requirements.

Referring to fig. 1 and 2, the forming mold provided in this embodiment includes a male mold 100 and a female mold 200 that are fastened to each other, the male mold 100 has a first fastening surface 101, the female mold 200 has a second fastening surface 201, and the object to be embossed is sandwiched between the first fastening surface 101 and the second fastening surface 201 to be embossed. The first buckling surface 101 is provided with a hollow groove 102, the bottom of the hollow groove 102 is provided with a convex striking structure, the top end of the convex striking structure is higher than the first buckling surface 101, the second buckling surface 201 is provided with a groove structure matched with the convex striking structure in shape, and when the male die 100 and the female die 200 are buckled with each other, the convex striking part of the object to be struck is pressed into the groove structure by the convex striking structure, so that convex striking operation is completed.

The forming mold further comprises a buffer adhesive layer 300, the buffer adhesive layer 300 is arranged in the hollow groove 102, the buffer adhesive layer 300 is arranged around the protruding structure, and the top end of the buffer adhesive layer 300 protrudes out of the first buckling surface 101. The buffering glue layer 300 has certain elasticity, and in the process of striking, the buffering glue layer 300 compresses the periphery of the part to be struck of the object to be struck and provides elastic buffering, so that the phenomena of cracking and crumpling caused by the deformation of the object to be struck are effectively avoided.

In the embodiment, the hollow groove 102 is formed in the male die 100, and the projection hitting structure with the height higher than that of the first fastening surface 101 is arranged in the hollow groove 102, so that the traditional scheme that the projection hitting structure is directly arranged on the first fastening surface 101 is optimized, the projection hitting pressure of a to-be-hit projection object in the projection hitting process is reduced, and the projection hitting effect is improved; meanwhile, the arrangement of the hollow-out grooves 102 provides a space for increasing the buffer glue layer 300 or other buffer structures, so that the convex hitting process can be flexibly and smoothly carried out, the damage to the objects to be hit is further reduced, and the convex hitting quality is improved.

In an alternative embodiment, the material of the buffer adhesive layer 300 may be a microporous sealant (e.g., gold glue).

In this embodiment, the bump structure includes bump groups 103 disposed at the bottom of the hollow groove 102, and the bump groups 103 are symmetrically arranged in the hollow groove 102. Correspondingly, the groove structure comprises a convex striking groove group 202 arranged on the second buckling surface 201 of the female die 200, and the convex striking groove group 202 is matched with the convex striking strip group 103 one by one. In order to leave a striking space and prevent the object to be struck from being broken, the size of the notch of the striking groove group 202 is larger than the peripheral size of the striking strip group 103, that is, the size of the notch of the striking groove group 202 is larger than the maximum size of the horizontal section of the striking strip group 103.

In an alternative embodiment, as shown in fig. 3, the striking convex strip group 103 includes two longitudinal convex strips 1031 spaced in parallel at the bottom of the hollow groove 102 and two lateral convex strips 1032 spaced in parallel, and the extending directions of the longitudinal convex strips 1031 and the lateral convex strips 1032 are perpendicular. In this embodiment, the length of the longitudinal protruding strips 1031 is set to 50-200 mm, the length of the transverse protruding strips 1032 is set to 10-50 mm, and the widths of the longitudinal protruding strips 1031 and the transverse protruding strips 1032 are set to 3-8 mm. In other alternative embodiments, the sizes of the longitudinal ribs 1031 and the transverse ribs 1032 can also be specifically set according to the bumping process requirements, and the utility model is not limited herein.

The female die 200 is provided with two striking longitudinal grooves 2021 and two striking transverse grooves 2022 corresponding to the striking ridge group 103. In order to secure the bumping space, the length of the bumping longitudinal groove 2021 and the bumping lateral groove 2022 is 0.2mm larger than the length of the longitudinal protrusion 1031 and the lateral protrusion 1032, respectively, and the width of the bumping longitudinal groove 2021 and the bumping lateral groove 2022 is 0.4mm larger than the width of the longitudinal protrusion 1031 and the lateral protrusion 1032, respectively. Above-mentioned setting can guarantee terrace die 100 and die 200 looks lock back, and the width direction both ends of vertical sand grip 1031 and horizontal sand grip 1032 respectively have 0.2mm hit protruding clearance, and the length direction both ends of vertical sand grip 1031 and horizontal sand grip 1032 respectively have 0.1mm hit protruding clearance, have prevented to wait to hit the protruding thing and have been hit brokenly. Of course, the above-mentioned striking gap setting is for the sizes of the longitudinal ridges 1031 and the lateral ridges 1032 in the present embodiment, and the striking gap may be set to other reasonable sizes for the longitudinal ridges 1031 and the lateral ridges 1032 having other sizes.

As shown in fig. 4, the striking strip group 103 includes a support portion with a cubic lower portion and a striking protrusion with a circular arc-shaped cross section at an upper portion, and both ends of the striking protrusion are in a circular arc surface structure. In this embodiment, the height of the supporting portion is set to 1.32mm, the height of the striking portion is set to 1.48mm, the total height of the striking strip group 103 is 2.8mm, the height of the hollow groove 102 is set to 1.5mm, and the striking strip group 103 is 1.3mm higher than the first fastening surface 101. Of course, in other embodiments, the specific size of the striking strip group 103 may be specifically defined according to the striking process.

Specifically, the longitudinal protrusion 1031 includes a lower longitudinal protrusion support portion 10311 and an upper longitudinal protrusion hitting portion 10312, and both ends of the longitudinal protrusion hitting portion 10312 have an arc surface structure. The lateral protrusion 1032 includes a lower lateral protrusion support 10321 and an upper lateral protrusion hitting portion 10322, and both ends of the lateral protrusion hitting portion 10322 have an arc surface structure.

As shown in fig. 5, the cross-sectional shape of the striking groove group 202 is circular arc, that is, the striking groove group 202 is an extended circular arc groove, the depth of the striking groove group 202 is set to be 1.12mm, and both ends of the striking groove group 202 are circular arc surfaces to be adapted to the shape of the striking strip group 103. Specifically, the cross-sectional arc radii of the hitting convex longitudinal groove 2021 and the hitting convex transverse groove 2022 are respectively larger than the cross-sectional arc radii of the vertical convex hitting portion 10312 and the horizontal convex hitting portion 10322, and the radii of the arc surfaces at both ends of the hitting convex longitudinal groove 2021 and the hitting convex transverse groove 2022 are respectively larger than the radii of the arc surfaces at both ends of the vertical convex hitting portion 10312 and the horizontal convex hitting portion 10322.

The shape structure design of the striking strip group 103 and the striking groove group 202 can reserve the thickness allowance of the object to be struck, reduce the striking vertical pressure of the object to be struck, reduce the stress deformation of the object to be struck, prevent the object to be struck from being broken, and have better aesthetic property. Further, since the length of the lateral protrusion 1032 is shorter, and the vertical pressure to the object to be struck is larger during striking, the radius of the arc surface at both ends of the lateral protrusion striking portion 10322 is larger than the radius of the arc surface at both ends of the longitudinal protrusion striking portion 10312.

In this embodiment, regarding the existing sizes of the striking convex strip group 103 and the striking convex groove group 202, the radii of the arc surfaces at the two ends of the longitudinal convex strip 1031 are set to 1.85mm, the radii of the arc surfaces at the two ends of the transverse convex strip 1032 are set to 1.97mm, the radii of the arc surfaces at the two ends of the striking convex longitudinal groove 2021 are set to 2.25mm, and the radii of the arc surfaces at the two ends of the striking convex transverse groove 2022 are set to 2.29 mm. Of course, in other embodiments, the radian of each rounded corner can be adjusted adaptively for different sizes of the striking strip group 103 and the striking strip group 202, which is not limited in the present invention.

In order to prevent the edge of the striking groove group 202 from being too sharp to cut the object to be struck and prevent the object to be struck from being struck through, a round chamfer is arranged at the edge of the notch of the striking groove group 202. Preferably, the radius of the rounded chamfer is set to 0.25 mm. In other embodiments, the shape and size of the chamfer may be otherwise defined. The edge of the convex striking groove group 202 is provided with the round chamfer, so that the round chamfer can be formed at the edge of the convex striking part of the object to be struck, the shearing stress on the object to be struck is reduced, and the attractiveness after convex striking is improved.

The buffer glue layer 300 is sandwiched between the male die 100 and the female die 200 and is used for providing buffer for the object to be embossed in the embossing process. The buffer layer 300 is disposed in the hollow-out groove 102 of the convex mold 100, and the thickness of the buffer layer 300 is greater than the depth of the hollow-out groove 102. In this embodiment, the depth of the hollow-out groove 102 is 1.5mm, the thickness of the buffer adhesive layer 300 is set to be 2mm, and the height of the buffer adhesive layer 300 higher than the first fastening surface 101 is 0.5 mm. Two longitudinal convex strip through holes 301 and two transverse convex strip through holes 302 are respectively formed in the positions, corresponding to the longitudinal convex strips 1031 and the transverse convex strips 1032, of the cushion gum layer 300, and the longitudinal convex strips 1031 and the transverse convex strips 1032 are respectively embedded in the longitudinal convex strip through holes 301 and the transverse convex strip through holes 302. In the convex striking process, the buffer glue layer 300 is in contact with the object to be struck and is elastically compressed, and the buffer glue layer 300 presses the object to be struck on the female die 200.

The buffer glue layer 300 is arranged, so that a buffer is formed on one surface of the object to be embossed, the two side surfaces of the object to be embossed are prevented from being in hard contact with the male die 100 and the female die 200, a deformation space is provided for deformation generated at the edge of the embossing area of the object to be embossed, and the object to be embossed is prevented from being wrinkled and broken. Optionally, the cushion rubber layer 300 is made of elastic gel made of macromolecular material such as rubber or resin. Preferably, the buffer adhesive layer 300 is a microporous sealant (e.g., gold glue) formed by compounding rubber and other macromolecular substances.

The forming die provided by the embodiment is mainly designed for embossing hard paper. Since the paper is more likely to break in a direction extending perpendicular to its paper grain. In order to further ensure the convex striking effect and prevent the paper from being wrinkled and broken, the groove bottom of the hollow groove 102 is provided with stretching bosses 104 at two ends of the convex striking strip group 103 which is vertical to the extending direction of the texture of the paper, and the height of the stretching bosses 104 is smaller than the depth of the hollow groove 102. In the present embodiment, the extending direction of the longitudinal ridges 1031 is perpendicular to the grain direction of the paper, so that the stretching bosses 104 are provided at both ends of the longitudinal ridges 1031, and the height of the stretching bosses 104 is set to 0.8 mm. Of course, in other embodiments, if the embossing process is set such that the direction of the transverse ribs 1032 is perpendicular to the grain direction of the paper, the stretching bosses 104 may be disposed at both ends of the transverse ribs 1032, and both cases fall within the scope of the present invention.

The buffer glue layer 300 covers the stretching boss 104, and the surface area of the buffer glue layer 300 facing the stretching boss 104 is 0.8mm higher than other surface areas of the buffer glue layer 300. When the convex is hit, the stretching boss 104 can ensure the compression of the edge of the convex hitting area of the object to be hit, and ensure the convex hitting forming effect.

The punch 100 and the die 200 are positioned by positioning pins (not shown) before striking. Specifically, a plurality of first positioning holes 105 are symmetrically formed in the male die 100, a plurality of second positioning holes 203 are symmetrically formed in the female die 200, and the plurality of first positioning holes 105 correspond to the plurality of second positioning holes 203 in a one-to-one position. And positioning pins are inserted into the aligned first positioning holes 105 and the second positioning holes 203 to realize positioning alignment of the first positioning holes and the second positioning holes.

In an alternative embodiment, the forming mold provided by the embodiment of the present invention further includes a heating device, and the heating device includes two heating sub-portions separately disposed, and the two heating sub-portions are respectively connected to the male mold 100 and the female mold 200. The heating device is used for heating the male die 100 and the female die 200 in the convex hitting process, and the tiny fracture positions of the paper are closed by utilizing the heat of the male die 100 and the heat of the female die 200. Preferably, the heating temperature of the male die 100 and the female die 200 is controlled between 50 ℃ and 60 ℃ during the embossing process. In an alternative embodiment, the embossing speed of the male die 100 and the female die 200 during embossing is controlled between 1mm/s and 2 mm/s.

In an optional implementation manner, the protrusion to be hit can be paper, and the humidity of the paper is increased to more than 6%, so that the paper forming effect of the forming die of the embodiment can be improved.

The embodiment also provides a punching machine, which comprises the forming die described in any scheme. The positioned forming die is fixed on a punching machine for punching, the male die 100 is fixed on a fixed seat of the punching machine, and the female die 200 is arranged on a punching arm of the punching machine and can move up and down relative to the male die 100. At least one first fastening hole 106 is formed in the middle of the male die 100, and the male die 100 is fixed to a fixing seat of the press machine by a first connecting member installed in the first fastening hole 106. At least one second fastening hole 204 is opened in the middle of the female die 200, and the female die 200 is fixed to the punching arm by a second connector installed in the second fastening hole 204. Preferably, the first connecting piece and the second connecting piece are both threaded connecting pieces.

The edge of the male die 100 is provided with a limiting table 107, and the limiting table 107 is used for positioning the object to be punched. The limiting table 107 is a strip-shaped structure protruding out of one side edge of the first fastening surface 101, the limiting table 107 at least completely covers one side edge of the first fastening surface 101, and two sides of the limiting table 107 are bent along two other adjacent side edges of the first fastening surface 101 respectively, so that two right-angle inner angles are formed to position a protrusion to be struck.

The positioning accuracy of the button is determined by the calibration structures provided on the punch 100 and the die 200. The alignment structure includes a plurality of alignment bosses 205 provided on the female die 200 and a plurality of alignment holes 108 provided on the male die 100, the plurality of alignment holes 108 being aligned one-to-one with the plurality of alignment bosses 205. The calibration boss 205 protrudes from the second fastening surface 201, and the height of the calibration boss 205 is set between 0.2mm and 0.4 mm. A plurality of calibration circles are drawn on the corresponding positions of the to-be-punched projection, which are aligned with the calibration structure, the projection of the to-be-punched projection is formed into a plurality of calibration circular grooves during projection punching, if the positions of the calibration circular grooves coincide with the positions of the calibration circles, the positioning accuracy of the to-be-punched projection is good, and if the positions of the calibration circular grooves and the calibration circles deviate, the shape or the position of the limiting table 107 needs to be adjusted to ensure the positioning accuracy.

According to the forming die provided by the embodiment of the utility model, the striking convex strip group 103 and the striking convex groove group 202 are specially designed, and the structures such as the stretching lug boss 104 and the buffer glue layer 300 are arranged, so that the striking convex height of a to-be-struck convex object such as hard paper is obviously improved, and the hard paper with the thickness of 0.45mm can be struck and projected to the striking convex height of 0.7mm or more. The forming die avoids the occurrence of the phenomena of paper breakage and crumpling in the process of convex striking, and improves the appearance attractiveness of the object to be struck.

Second embodiment

As shown in fig. 6 and 7, the present embodiment provides a forming die and a punch for embossing a thin plate-like object. Fig. 6 shows a structural view of a male mold of the molding die provided in the present embodiment, and fig. 7 shows a structural view of a female mold of the molding die provided in the present embodiment. The forming mold provided in this embodiment has substantially the same structure as the forming mold provided in the first embodiment, except that the shapes of the projection structure and the groove structure in this embodiment are different from those in the first embodiment, and the description of the same parts of the forming mold and the first embodiment will not be repeated in this embodiment.

Referring to fig. 6, the striking structure in this embodiment is a striking bar group 103 connected end to end, the planar shape of the striking bar group 103 is substantially rectangular, and four corners of the striking bar group 103 are arranged in a rounded structure. Referring to fig. 7, the striking surface groove group 202 is a rectangular circular arc groove matching the shape of the striking surface bar group 103. The four corners of the striking convex groove group 202 are arranged into a round angle structure, and the size of the groove opening of the striking convex groove group 202 is larger than the maximum peripheral size of the striking convex strip group 103.

In this embodiment, since the striking bar groups 103 are connected end to end, the striking bar groups 103 do not have a start end and an end, so that the concentration of striking pressure generated by the two ends of the striking bar groups 103 on the object to be struck is avoided, and the possibility of creasing and cracking of the object to be struck is reduced. The set of forming dies is relatively simple in construction without the tension boss 104 of the illustrated embodiment.

Of course, the forming mold provided by the present invention is not limited to the structures shown in the two embodiments, and other shapes of the convex striking structure and the concave groove structure can be adopted according to the convex striking process and the shape requirement.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present invention and directly or indirectly applied to other related technical fields are also included in the scope of the present invention.

Claims (10)

1. A molding die, comprising:

the male die (100) is provided with a first fastening surface (101), a hollow groove (102) is formed in the first fastening surface (101), a convex striking structure is arranged in the hollow groove (102), and the top end of the convex striking structure is higher than the first fastening surface (101);

the female die (200) is provided with a second buckling surface (201), and a groove structure matched with the protruding structure in shape is arranged on the second buckling surface (201);

the buffer glue layer (300) is arranged in the hollow groove (102), the buffer glue layer (300) is arranged around the protruding structure in a surrounding mode, and the buffer glue layer (300) protrudes out of the first buckling surface (101).

2. The forming die according to claim 1, characterized in that the striking structure comprises a striking bar group (103) provided at a groove bottom of the hollowed-out groove (102);

the groove structure comprises a convex striking groove group (202) arranged on the second buckling surface (201);

the striking groove groups (202) and the striking strip groups (103) are arranged in a one-to-one correspondence mode, and the groove opening size of the striking groove groups (202) is larger than the peripheral size of the striking strip groups (103).

3. The molding die according to claim 2, wherein the width of the striking groove group (202) is 0.4mm greater than the width of the striking bar group (103), and the length of the striking groove group (202) is 0.2mm greater than the length of the striking bar group (103).

4. The forming die according to claim 2, characterized in that the bottom of the hollowed-out groove (102) is provided with stretching bosses (104) at two ends of the hitting convex strip group (103) perpendicular to the extending direction of the paper texture, the height of the stretching bosses (104) is smaller than the depth of the hollowed-out groove (102), and the buffer glue layer (300) covers the stretching bosses (104).

5. The forming die as claimed in claim 2, wherein the striking convex strip group (103) comprises a lower supporting portion and an upper striking convex portion, the striking convex portion has a circular arc-shaped cross section, the two ends of the striking convex portion are circular arc-shaped surfaces, the cross section of the striking groove group (202) is circular arc-shaped, the two ends of the striking groove group (202) are circular arc-shaped surfaces, the radius of the cross section of the striking groove group (202) is greater than that of the striking convex portion, and the radius of the circular arc-shaped surfaces of the striking groove group (202) is greater than that of the circular arc-shaped surfaces of the striking convex portion.

6. The forming die according to claim 2, characterized in that the notch edges of the striking groove group (202) are provided with a chamfer.

7. The forming die according to claim 5, characterized in that the striking bar group (103) comprises two longitudinal bars (1031) longitudinally spaced in parallel and two transverse bars (1032) laterally spaced in parallel at the bottom of the hollow groove (102);

the convex striking groove group (202) comprises two convex striking longitudinal grooves (2021) and two convex striking transverse grooves (2022) which are respectively matched with the longitudinal convex strips (1031) and the transverse convex strips (1032);

the radius of the arc surfaces at the two ends of the transverse convex strip (1032) is larger than that of the arc surfaces at the two ends of the longitudinal convex strip (1031).

8. The forming die of any one of claims 1 to 7, wherein a plurality of first positioning holes (105) are formed in the male die (100), a plurality of second positioning holes (203) are formed in the female die (200), the plurality of first positioning holes (105) and the plurality of second positioning holes (203) are aligned one by one, and the male die (100) and the female die (200) are positioned by bolts inserted into the first positioning holes (105) and the second positioning holes (203).

9. The forming die of claim 8, further comprising a heating device, wherein the heating device is connected with the male die (100) and the female die (200), and the heating device is used for heating the male die (100) and the female die (200) in the process of convex striking.

10. A stamping press comprising a forming die according to any of claims 1 to 9.

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