CN220760784U - Reinforcement secondary forming structure and stamping die - Google Patents

Abstract

The utility model provides a rib pressing secondary forming structure, a stamping die and a stamping die, wherein the rib pressing secondary forming structure comprises the following components: the upper stripper plate is used for pressing a plate material during die assembly, a groove is formed in the bottom surface of the upper stripper plate, and a plurality of through holes are formed in the groove at intervals along the length direction; the molding block is arranged in the groove; the ejector rod is arranged in the through hole in a penetrating way and is abutted with the forming block, and is used for ejecting the forming block out of the groove when the die is closed so as to form a rib on the plate. The rib pressing secondary molding structure can effectively improve the structural strength of the upper stripper plate, prolong the service life of the die and further reduce the cost of the die.

Description

Reinforcement secondary forming structure and stamping die

Technical Field

The utility model relates to the technical field of sheet metal dies, in particular to a rib pressing secondary forming structure and a stamping die.

Background

At present, as shown in fig. 1 and 2, when the rib 20 in the middle of the product 19 is close to the periphery forming, and the characteristic shape of the rib 20 in the middle of the product 19 is slender, the conventional forming method separates the middle rib forming and the periphery forming of the product into two procedures, so that two pairs of dies are used for respective production, the production efficiency is low, the occupied production field space is more, and the dimensional tolerance of the product is large.

In order to solve the above-mentioned problems, a mold structure is proposed in the prior art, as shown in fig. 3 to 7, a rib pressing block 16 for forming a rib is fixed on an upper clamping plate 3 and is locked by a fixing screw 17, and simultaneously, two through grooves 18 for the rib pressing block 16 to pass through are provided on an upper stripper plate 4, and as the two through grooves 18 are too close to the outer edge of the upper stripper plate 4, the wall thickness of the upper stripper plate 4 is too thin, so that the strength of the upper stripper plate 4 is insufficient, and the service life of the mold is seriously affected.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a rib pressing secondary forming structure and a stamping die, which are used for solving the problem of insufficient upper stripper plate strength of the existing rib pressing integrated forming die structure.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a beading overmoulding structure comprising:

the upper stripper plate is used for pressing a plate material during die assembly, a groove is formed in the bottom surface of the upper stripper plate, and a plurality of through holes are formed in the groove at intervals along the length direction;

the molding block is arranged in the groove;

the ejector rod is arranged in the through hole in a penetrating way and is abutted with the forming block, and is used for ejecting the forming block out of the groove when the die is closed so as to form a rib on the plate.

The utility model provides a press bar secondary shaping structure, the shaping piece activity of shaping press bar sets up in last recess that takes off the board bottom to be connected with the ejector pin in the recess top through-hole, the compound die in-process, the recess of taking off the board on with shaping down the shaping piece through the ejector pin, in order to take off the press bar on the sheet material, owing to changed the hookup location and the ejecting mode of shaping piece, go up to take off the board and need not to set up the logical groove that supplies the shaping piece to pass, only need to take off the blind groove that the board bottom was offered and is supplied shaping piece activity can, thereby effectively improved the structural strength who takes off the board on, prolonged the life of mould, and then reduced the mould cost.

In some embodiments, the device further comprises an upper clamping plate, wherein the upper stripping plate is arranged below the upper clamping plate in a lifting displacement manner;

when the die is assembled, the first end of the ejector rod is abutted with the upper clamping plate, the second end of the ejector rod is abutted with the forming block, so that the forming block is ejected out of the groove, and the first end and the second end are two ends of the ejector rod (5) in the length direction.

According to the rib pressing secondary forming structure, the upper clamping plate applies force to the ejector rod to eject the forming block, and in particular, the forming block is hung in a groove of the upper stripper plate in a mold opening state and is used for forming the bottom of the rib pressing extending out of the groove; in the descending process of the die, the forming block firstly contacts with the plate material on the lower die plate, the forming block is retracted into the groove under the blocking of the plate material, the upper end of the ejector rod extends out of the through hole, the die stroke continues to descend until the bottom surface of the upper stripper plate presses the plate material, and the stamping forming is started; the mould stroke continues to descend, the upper template and the lower template at the periphery of the upper stripper plate are matched with each other to form the periphery of the product first until the ejector rod contacts with the bottom surface of the upper clamping plate, the bottom surface of the upper clamping plate pushes the ejector rod to transmit force to a forming block in a groove of the upper stripper plate to move downwards, at the moment, the forming block starts to press the rib in the middle of the product (called as the secondary forming in the stripper plate starts), the mould stroke continues to descend, the upper template, the forming block and the lower template synchronously form the rib in the middle of the product and the periphery until the upper stripper plate is attached to the upper clamping plate, and the product forming is completed; with the operation of the machine, the upper die and the lower die start to separate, the product is separated from the upper die plate and the upper stripper plate, and the product is left on the lower die plate, so that the whole product forming process is completed.

In some embodiments, the die further comprises an upper die holder, wherein the upper clamping plate is arranged on the bottom surface of the upper die holder, and a plurality of through holes are formed in the upper clamping plate at intervals;

the first end of the ejector rod is positioned in the through hole;

when the die is assembled, the first end of the ejector rod is abutted with the upper die holder so as to eject the forming block out of the groove.

According to the rib pressing secondary forming structure, the upper die base applies force to the ejector rod to realize ejection of the forming block, so that the ejector rod can conduct double guide through the upper clamping plate and the upper stripping plate, ejection stability of the forming block is improved, and in the die opening state, the forming block is hung in a groove of the upper stripping plate and is used for forming the bottom of the rib pressing extending out of the groove; in the descending process of the die, the forming block firstly contacts with the plate material on the lower die plate, and is retracted into the groove under the blocking of the plate material, the die stroke continues to descend until the bottom surface of the upper stripper plate presses the plate material, and the stamping forming is started; the mould stroke continues to descend, the upper template and the lower template at the periphery of the upper stripper plate are matched with each other to form the periphery of the product first until the ejector rod contacts with the bottom surface of the upper die holder, the bottom surface of the upper die holder pushes the ejector rod to transmit force to the forming block in the upper stripper plate groove to move downwards, at the moment, the forming block starts to press the rib in the middle of the product (called as the secondary forming in the stripper plate starts), the mould stroke continues to descend, the upper template, the forming block and the lower template synchronously form the rib in the middle of the product and the periphery until the upper stripper plate is attached to the upper clamping plate, and the product forming is completed; with the operation of the machine, the upper die and the lower die start to separate, the product is separated from the upper die plate and the upper stripper plate, and the product is left on the lower die plate, so that the whole product forming process is completed.

In some embodiments, the molding block is connected in the groove in a lifting displacement manner through a set of equal heights.

The rib pressing secondary forming structure of the embodiment realizes lifting displacement of the forming block through the equal-height sleeve, has a simple structure and is limited and reliable, and meanwhile, the number of the equal-height sleeves can be flexibly designed according to the length of the forming block.

In some embodiments, the upper stripper plate is connected below the upper clamping plate in a lifting displacement manner through a second equal-height sleeve.

The rib pressing secondary forming structure of the embodiment realizes lifting displacement of the upper stripper plate through the equal-height sleeves, is simple in structure and reliable in limiting, and meanwhile, the number of the equal-height sleeves can be flexibly designed according to the size of the upper stripper plate.

In some embodiments, an elastic member is disposed between the upper stripper plate and the upper die holder.

The rib pressing secondary forming structure of this implementation, go up to take off the board and pass through the below of elastic component elastic connection punch holder, through the pre-compaction of elastic component, guarantee the motion stationarity of whole mould stroke in-process, simultaneously, the upper that the elasticity set up takes off the board and both can cushion the rigidity contact of stamping process, improves the shaping effect, also is favorable to taking off the material of product and cope match-plate pattern.

In some embodiments, the device further comprises a lower template, wherein the lower template is positioned below the upper stripper plate, and a forming groove matched with the forming block is formed in the top surface of the lower template.

In some embodiments, the upper plate is arranged on the bottom surface of the upper clamping plate and positioned on the periphery of the upper stripping plate;

and when the die is assembled, the upper die plate and the lower die plate are combined together to jointly press and bend the plate into a product.

In some embodiments, the die further comprises a lower bolster and a lower die holder, the lower bolster being mounted on the lower die holder by the lower bolster.

According to another aspect of the present utility model, there is provided a stamping die including the beading secondary molding structure described above.

The stamping die has the effect that the stamping die has or uses the rib pressing secondary molding structure of the first aspect, namely, the structural strength of the upper stripper plate is improved, the service life of the die is prolonged, and the die cost is further reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a front view of a product produced by a stamping die;

FIG. 2 is a bottom view of a product produced by the stamping die;

fig. 3 is a schematic structural diagram of a stamping die in the prior art, wherein the die is in an open state;

fig. 4 is a schematic structural diagram of a stamping die in the prior art, in which the upper die is in a state of just contacting a plate material;

fig. 5 is a schematic structural diagram of a stamping die of the prior art, in which the die is in a die-open state;

FIG. 6 is a schematic view of a prior art upper stripper plate;

FIG. 7 is a cross-sectional view A-A of FIG. 6;

fig. 8 is a schematic structural diagram of a stamping die according to the first embodiment of the present application, where the die is in an open state;

fig. 9 is a schematic structural diagram of a stamping die according to the first embodiment of the present application, in which the upper die is in a state of just contacting a plate material;

fig. 10 is a schematic structural diagram III of a stamping die according to the first embodiment of the present application, where the die is in a die-open state;

FIG. 11 is a schematic structural view of an upper stripper plate according to a first embodiment of the present disclosure;

FIG. 12 is a cross-sectional view B-B of FIG. 11;

fig. 13 is a schematic structural diagram of a stamping die according to a second embodiment of the present application, in which the die is in an open state;

fig. 14 is a schematic structural diagram of a stamping die according to a second embodiment of the present application, in which the upper die is in a state of just contacting a plate material;

fig. 15 is a schematic structural diagram III of a stamping die according to a second embodiment of the present application, in which the die is in a die-open state;

wherein:

1-an upper die holder; 2-an upper template I; 3-upper clamping plate; 4-upper stripper plate; 5-ejector rods; 6-forming blocks; 7-sleeving the first part at the same height; 8-a second equal-height sleeve; 9-an elastic member; 10-an upper template II; 11-plate material; 12-lower template I; 13-a lower backing plate; 14-a lower die holder; 15-a second lower template; 16-a rib pressing block; 17-fixing screws; 18-through grooves; 19-product; 20-pressing the ribs; 21-grooves; 22 through holes.

Detailed Description

Preferred embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited by 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 of the utility model. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In addition, in the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 and 2, there is shown an elongated sheet-like product 19 with ribs 20 in the middle of the product 19 and the periphery being formed closely together, and the ribs 20 being elongate in character.

For such products, the conventional molding method separates the middle rib pressing part and the peripheral molding part, so that the two molds are used for production respectively, the production efficiency is low, the dimensional tolerance of the product is large, the space of the production site is occupied more, and the dimensional tolerance of the product is improved for improving the production efficiency

To solve the above-mentioned problems, the prior art proposes a mold structure including an upper mold and a lower mold, see fig. 3 to 7. The upper die comprises an upper die holder 1, an upper clamping plate 3 is arranged on the bottom surface of the upper die holder 1, an upper stripping plate 4 is arranged below the upper clamping plate 3, an upper die plate I2 and an upper die plate II 10 which are used for forming the periphery of a product 19 are fixed on the upper clamping plate 3 and positioned at the periphery of the upper stripping plate 4, a rib pressing block 16 for pressing a rib 20 in the middle of the product 19 is also fixed on the upper clamping plate 3 and is locked by a fixing screw 17, and two through grooves 18 for the rib pressing block 16 to pass through are formed in the upper stripping plate 4. The lower die comprises a lower die holder 14, a lower base plate 13 is arranged on the lower die holder 14, a first lower die plate 12 and a second lower die plate 15 are arranged on the lower base plate 13, the first lower die plate 12 is positioned right below the upper stripper plate 4 and used for supporting a plate 11, the first lower die plate 12 and a rib pressing block 16 are matched to form a rib 20, and the first upper die plate 2, the second upper die plate 10, the first lower die plate 12, the first upper die plate 2 and the second lower die plate 15 are matched to form the periphery of a product 19.

When the upper die is specifically used, the upper stripper plate 4 firstly contacts with the plate 11 on the lower die plate 12, presses the plate 11, and starts to be punched and formed, as shown in fig. 4, the upper die plate 2 and the upper die plate 10 continue to move downwards, the periphery of the product 19 is firstly formed until the rib pressing block 16 extends out of the bottom surface of the upper stripper plate 4, the upper die plate 16, the rib pressing block 16, the upper die plate 10, the lower die plate 12 and the lower die plate 15 continue to move downwards, and the rib pressing and peripheral forming in the middle of the product 19 are synchronously formed until the upper stripper plate 4 is attached to the upper clamping plate 3, as shown in fig. 5, and the product forming is completed.

Although the above-described integral molding die structure realizes the integral molding of the rib and the periphery in the middle of the product 19, as shown in fig. 6 and 7, since the two through grooves 18 of the upper stripper plate 4 are too close to the outer edge of the upper stripper plate 4, the wall thickness of the upper stripper plate 4 is too thin, so that the strength of the upper stripper plate 4 is insufficient, and the die life is seriously affected.

Therefore, the application provides a rib pressing secondary forming structure and a stamping die, so that the problem that the strength of an upper stripper plate is insufficient in the die structure is solved. The rib-pressing secondary molding structure and the pressing die provided in the present application are exemplarily described below with reference to fig. 8 to 15.

Example 1

As shown in fig. 8 to 12, a rib pressing secondary forming structure is applied to a stamping die with an upper die and a lower die, and the rib pressing secondary forming structure is positioned in the upper die and specifically comprises an upper stripper plate 4, an ejector rod 5 and a forming block 6.

The upper stripper plate 4 is connected below the upper clamping plate 3 in a lifting and displacement manner through a second equal-height sleeve 8 and is used for pressing the plate 11 downwards during die assembly, a groove 21 is formed in the bottom surface of the upper stripper plate 4, and through holes 22 are formed in the top of the groove 21 at intervals along the length direction of the groove 21.

More specifically, the groove 21 is a blind groove provided at the lower portion of the upper stripper plate 4, and the through hole 22 is provided at the upper portion of the upper stripper plate 4 for communicating the groove 21 with the top surface of the upper stripper plate 4. Wherein, the number of grooves 21 is consistent with the number of ribs 20 in the middle of the product 19, the number of through holes 22 can be designed independently according to the length of the grooves 21, and optionally, the number of through holes 22 is not less than 2.

The molding block 6 for molding the rib 20 in the middle of the product 19 is connected in the groove 21 of the upper stripper plate 4 in a lifting displacement manner through the equal-height sleeve 7, and in the mold opening state, the bottom of the molding block 6 extends out of the upper stripper plate 4.

The ejector rod 5 is vertically arranged in the through hole 22, the lower end of the ejector rod 5 is connected with the forming block 6, and when the die is closed, the upper end of the ejector rod 5 is abutted with the bottom surface of the upper clamping plate 3 so as to downwards eject the forming block 6 out of the groove 21, thereby forming the rib 20 on the plate 11.

More specifically, the number of the ejector pins 5 may be at least 2, and the lower ends of the ejector pins 5 may be fixedly connected to the molding blocks 6, or may not be fixed, that is, the ejector pins 5 are directly placed in the through holes 22, and the lengths of the ejector pins 5 need to be set so that, when the bottom surfaces of the molding blocks 6 are flush with the bottom surfaces of the upper stripper plates 4, the lengths of the upper ends of the ejector pins 5 extending out of the through holes 22 are approximately equal to the molding depth of the press bars 20.

Referring to fig. 8, the upper die of the stamping die further includes an upper die holder 1, an upper clamping plate 3 is disposed on the bottom surface of the upper die holder 1, an upper first die plate 2 and an upper second die plate 10 are disposed on the bottom surface of the upper clamping plate 3, and are both used for forming the periphery of a product 19, and specifically, the upper first die plate 2 and the upper second die plate 10 are respectively disposed on the periphery of the upper stripper plate 4, so that the upper stripper plate 4 moves in a space enclosed by the upper first die plate 2, the upper clamping plate 3 and the upper die plate 10, and the motion stability of the stripper block 12 can be ensured.

Meanwhile, an elastic piece 9 is arranged between the upper stripper plate 4 and the upper die holder 1, that is, the upper stripper plate 4 is elastically connected below the upper clamping plate 3 through the elastic piece 9, so that the motion stability of the upper stripper plate 4 in the whole die stroke process is ensured through the pre-pressing of the elastic piece 9, and meanwhile, the elastically arranged upper stripper plate 4 can buffer the rigid contact in the stamping process, so that the forming effect is improved, and the stripping of the product 19 and the upper die plates 2 and 10 is facilitated.

The lower die of the stamping die comprises a lower die holder 14, a lower base plate 13 is arranged on the lower die holder 14, a first lower die plate 12 and a second lower die plate 15 are arranged on the lower base plate 13, wherein the first lower die plate 12 is positioned under the upper stripper plate 4 and is used for supporting the plate 11, a forming groove matched with the forming block 6 is formed in the top surface of the first lower die plate 12, so that a rib 20 of a product 19 can be formed by matching with the rib block 16, and the periphery of the product 19 is formed by matching the first upper die plate 2 and the second upper die plate 10 with the first lower die plate 12 and the first upper die plate 2 and the second lower die plate 15.

By applying the technical scheme of the embodiment, the ejector rod 5 is forced by the upper clamping plate 3 to eject the forming block 6, specifically, in the mold opening state shown in fig. 8, the forming block 6 is hung in the groove 21 of the upper stripper plate 4 and is used for forming the bottom of the rib 20 to extend out of the groove 21; the die gradually descends through the stamping stroke, the forming block 6 is firstly contacted with the plate 11 on the first lower die plate 12, the forming block is retracted into the groove 21 under the blocking of the plate 11, the upper end of the ejector rod 5 extends out of the through hole 22, the stamping stroke continues to descend until the bottom surface of the upper stripper plate 4 presses the plate 11, and the forming by stamping is started, as shown in fig. 9; the stamping stroke continues to descend, the first upper template 2, the second upper template 10, the first lower template 12 and the second lower template 15 on the periphery of the upper stripper plate 4 are matched with each other to form the periphery of the product first until the ejector rod 5 contacts with the bottom surface of the upper clamp plate 3, the bottom surface of the upper clamp plate 3 pushes the ejector rod 5 to transmit force to the forming block 6 in the groove 21 of the upper stripper plate 4 to move downwards, at the moment, the forming block 6 starts to press the rib in the middle of the product (called as the secondary forming in the stripper plate starts), the stamping stroke continues to descend, the first upper template 2, the forming block 6, the second upper template 10, the first lower template 12 and the second lower template 15 synchronously form the rib 20 in the middle of the product 19 until the upper stripper plate 4 is completely attached to the upper clamp plate 3, and the product forming is completed, as shown in fig. 10; with the machine running, the upper and lower dies start to separate, the product 19 is separated from the first upper die plate 2, the upper stripper plate 4 and the second upper die plate 10 and left on the first lower die plate 12 and the second lower die plate 15, the whole product forming process is completed, and the product returns to the die opening state shown in fig. 8 after blanking and feeding.

Therefore, in the rib pressing secondary molding structure of this embodiment, the molding block 6 for molding the rib pressing is movably disposed in the groove 21 at the bottom of the upper stripper plate 4 and is connected with the ejector rod 5 in the through hole 22 at the top of the groove 21, in the mold closing process, the ejector rod 5 pushes the molding block 6 downward out of the groove 21 of the upper stripper plate 4 under the pressing force of the upper clamping plate 3, so as to mold the rib pressing 20 on the plate 11, and the upper stripper plate 4 does not need to be provided with a through groove structure for the molding block 6 to pass through due to the change of the connection position and the ejection mode of the molding block 6, and only needs to be provided with a blind groove for the molding block 6 to move on the bottom surface of the upper stripper plate 4, thereby effectively improving the structural strength of the upper stripper plate 4, prolonging the service life of the mold and further reducing the cost of the mold.

Example two

As shown in fig. 11 to 15, the present embodiment provides another beading secondary molding structure provided in an upper die of a stamping die, specifically including an upper clamping plate 3, an upper stripper plate 4, a push rod 5 and a molding block 6.

The upper clamping plate 3 is arranged on the bottom surface of the upper die holder 1 of the stamping die, the upper stripper plate 4 is connected below the upper clamping plate 3 in a lifting displacement manner through a second equal-height sleeve 8 and used for pressing the plate 11 downwards during die assembly, the bottom surface of the upper stripper plate 4 is provided with grooves 21, and through holes 22 are formed in the tops of the grooves 21 at intervals along the length direction of the grooves 21.

More specifically, the groove 21 is a blind groove provided at the lower portion of the upper stripper plate 4, and the through hole 22 is provided at the upper portion of the upper stripper plate 4 for communicating the groove 21 with the top surface of the upper stripper plate 4. Wherein, the number of grooves 21 is consistent with the number of ribs 20 in the middle of the product 19, the number of through holes 22 can be designed independently according to the length of the grooves 21, and optionally, the number of through holes 22 is not less than 2.

Meanwhile, through holes are arranged on the upper clamping plate 3 at intervals, specifically, the positions of the through holes are in one-to-one correspondence with the through holes 22 on the upper stripping plate 4, and optionally, the diameters of the through holes are consistent with the through holes 22.

The molding block 6 for molding the rib 20 in the middle of the product 19 is connected in the groove 21 of the upper stripper plate 4 in a lifting displacement manner through the equal-height sleeve 7, and in the mold opening state, the bottom of the molding block 6 extends out of the upper stripper plate 4.

The ejector rod 5 is vertically arranged in the through hole 22, the lower end of the ejector rod is connected with the forming block 6, the upper end of the ejector rod extends out of the through hole 22 of the upper stripper plate 4 and extends into the through hole of the upper clamping plate 3, and when the die is closed, the upper end of the ejector rod 5 is abutted with the bottom surface of the upper die holder 1 so as to downwards eject the forming block 6 out of the groove 21, and therefore the pressing rib 20 is formed on the plate 11.

More specifically, the number of the ejector pins 5 may be at least 2, and the lower ends of the ejector pins 5 may be fixedly connected to the molding blocks 6, or may not be fixed, that is, the ejector pins 5 are directly placed in the through holes 22, and the length of the ejector pins 5 needs to be set so that, when the upper stripper plate 4 is attached to the upper clamping plate 3, the length of the lower ends of the ejector pins 5 extending out of the through holes 22 is approximately equal to the molding depth of the ribs 20.

Meanwhile, the bottom surface of the upper clamping plate 3 is also provided with an upper template I2 and an upper template II 10, which are both used for forming the periphery of the product 19, specifically, the upper template I2 and the upper template II 10 are respectively arranged on the periphery of the upper stripping plate 4, so that the upper stripping plate 4 moves in a space surrounded by the upper template I2, the upper clamping plate 3 and the upper template II 10, and the motion stability of the stripping block 12 can be ensured.

In addition, an elastic piece 9 is further arranged between the upper stripper plate 4 and the upper die holder 1, that is, the upper stripper plate 4 is elastically connected below the upper clamping plate 3 through the elastic piece 9, so that the motion stability of the upper stripper plate 4 in the whole die stroke process is ensured through the pre-pressing of the elastic piece 9, meanwhile, the elastically arranged upper stripper plate 4 can buffer the rigid contact in the stamping process, the forming effect is improved, and the stripping of the product 19 and the upper die plates 2 and 10 is facilitated.

Referring to fig. 13, the lower die of the stamping die comprises a lower die holder 14, a lower base plate 13 is arranged on the lower die holder 14, a first lower die plate 12 and a second lower die plate 15 are arranged on the lower base plate 13, wherein the first lower die plate 12 is positioned right below the upper stripper plate 4 and is used for supporting a plate 11, a forming groove matched with a forming block 6 is formed in the top surface of the first lower die plate 12, so that a pressing rib 20 of a product 19 can be formed by matching with the pressing rib block 16, and the first upper die plate 2 and the second upper die plate 10 are matched with the first lower die plate 12, the first upper die plate 2 and the second lower die plate 15 to form the periphery of the product 19.

In the rib pressing secondary molding structure, the upper die holder 1 applies force to the ejector rod 5 to realize ejection of the molding block 6, and compared with the first embodiment, the upper end of the ejector rod 5 is positioned in the through hole of the upper clamping plate 3, and the lower end of the ejector rod 5 is positioned in the through hole 22 of the upper stripping plate 4, so that the ejection stability of the ejector rod 5 can be improved through double guiding of the upper clamping plate 3 and the upper stripping plate 4.

In specific use, in the open mold state shown in fig. 13, the molding block 6 is hung in the groove 21 of the upper stripper plate 4, the bottom of the molding rib 20 extends out of the groove 21, the mold is gradually lowered through the stamping stroke, the molding block 6 is firstly contacted with the plate material on the first lower die plate 12 and is retracted into the groove 21 under the blocking of the plate material 11, the stamping stroke continues to be lowered until the bottom surface of the upper stripper plate 4 presses the plate material 11, and the stamping molding is started, as shown in fig. 14; the stamping stroke continues to descend, the first upper template 2, the second upper template 10, the first lower template 12 and the second lower template 15 on the periphery of the upper stripper plate 4 are matched with each other to form the periphery of the product first until the ejector rod 5 contacts with the bottom surface of the upper die holder 1, the bottom surface of the upper die holder 1 pushes the ejector rod 5 to transmit force to the forming block 6 in the groove 21 of the upper stripper plate 4 to move downwards, at the moment, the forming block 6 starts to press the rib in the middle of the product (called as the secondary forming in the stripper plate starts), the stamping stroke continues to descend, the first upper template 2, the forming block 6, the second upper template 10, the first lower template 12 and the second lower template 15 synchronously form the rib 20 in the middle of the product 19 and the periphery until the upper stripper plate 4 is completely attached to the upper clamp plate 3, and the product forming is completed, as shown in fig. 15; with the machine running, the upper and lower dies start to separate, the product 19 is separated from the first upper die plate 2, the upper stripper plate 4 and the second upper die plate 10 and left on the first lower die plate 12 and the second lower die plate 15, the whole product forming process is completed, and the product returns to the die opening state shown in fig. 13 after blanking and feeding.

Therefore, in the rib pressing secondary molding structure of this embodiment, the molding block 6 for molding the rib pressing is movably disposed in the groove 21 at the bottom of the upper stripper plate 4 and is connected with the ejector rod 5 in the through hole 22 at the top of the groove 21, in the mold closing process, the ejector rod 5 pushes the molding block 6 downward out of the groove 21 of the upper stripper plate 4 under the pressing force of the upper mold base 1, so as to mold the rib pressing 20 on the plate 11, and the upper stripper plate 4 does not need to be provided with a through groove structure for the molding block 6 to pass through due to the change of the connection position and the ejection mode of the molding block 6, and only needs to be provided with a blind groove for the molding block 6 to move on the bottom surface of the upper stripper plate 4, thereby effectively improving the structural strength of the upper stripper plate 4, prolonging the service life of the mold and further reducing the mold cost.

Example III

The embodiment also provides a stamping die for bending the plate material, which has the effect of improving the structural strength of the upper stripper plate 4, prolonging the service life of the die and further reducing the die cost due to the fact that the rib pressing secondary forming structure is provided or used.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures. In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application. The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a press muscle overmoulding structure which characterized in that includes:

the upper stripper plate (4) is used for pressing a plate material (11) during die assembly, a groove (21) is formed in the bottom surface of the upper stripper plate (4), and a plurality of through holes (22) are formed in the groove (21) at intervals along the length direction;

a molding block (6) arranged in the groove (21);

the ejector rod (5) is arranged in the through hole (22) in a penetrating mode and is abutted to the forming block (6) in a penetrating mode, and is used for ejecting the forming block (6) out of the groove (21) when the die is closed, so that a rib (20) is formed on the plate material (11).

2. The beading post-forming structure according to claim 1, wherein: the upper clamping plate (3) is arranged below the upper clamping plate (3) in a lifting displacement manner;

when the die is assembled, the first end of the ejector rod (5) is abutted with the upper clamping plate (3), the second end of the ejector rod (5) is abutted with the forming block (6) so as to eject the forming block (6) out of the groove (21), and the first end and the second end are two ends of the ejector rod (5) in the length direction.

3. The beading overmoulding structure according to claim 2, characterized in that: the die further comprises an upper die holder (1), wherein the upper clamping plate (3) is arranged on the bottom surface of the upper die holder (1), and a plurality of through holes are formed in the upper clamping plate (3) at intervals;

the first end of the ejector rod (5) is positioned in the through hole;

when the die is assembled, the first end of the ejector rod (5) is abutted with the upper die holder (1) so as to eject the forming block (6) out of the groove (21).

4. The beading post-forming structure according to claim 1, wherein: the forming block (6) is connected in the groove (21) in a lifting and displacement manner through a first equal-height sleeve (7).

5. The beading overmoulding structure according to claim 2, characterized in that: the upper stripper plate (4) is connected below the upper clamping plate (3) in a lifting displacement manner through a second equal-height sleeve (8).

6. A beaded overmoulding structure according to claim 3, characterized in that: an elastic piece (9) is arranged between the upper stripper plate (4) and the upper die holder (1).

7. The beading overmoulding structure according to claim 2, characterized in that: the device also comprises a lower template, wherein the lower template is positioned below the upper stripping plate (4), and the top surface of the lower template is provided with a forming groove matched with the forming block (6).

8. The beading overmoulding structure according to claim 7, characterized in that: the upper template is arranged on the bottom surface of the upper clamping plate (3) and is positioned on the periphery of the upper stripping plate (4);

when the die is assembled, the upper die plate and the lower die plate are combined with each other, and the plate material (11) is bent into a product (19) together.

9. The beading overmoulding structure according to claim 7, characterized in that: the die further comprises a lower base plate (13) and a lower die holder (14), and the lower die plate is arranged on the lower die holder (14) through the lower base plate (13).

10. A stamping die, characterized in that: a beaded overmoulded structure comprising a beading according to any one of the claims 1-9.