CN116476281A - Mould - Google Patents

Abstract

The invention discloses a die, which comprises an upper die main body, an insert assembly and a lower die main body. The insert assembly at least comprises a bending insert, the lower die body is provided with a bottom die and two side blocking parts positioned on two opposite sides of the bottom die, the bending insert is detachably connected to the bottom die and positioned between the two side blocking parts, and the side blocking parts are fixedly connected with the bending insert through fasteners. The die disclosed by the invention is light in weight, small in volume and low in energy consumption; two polygonal box edge sealing piece products with shorter bending intervals can be produced.

Description

Mould

Technical Field

The invention relates to the field of rubber molds, in particular to a mold.

Background

With the continuous development of the power equipment manufacturing industry, the specific requirement of the rubber box edge sealing member structure on the market is caused, and the polygonal special box edge is gradually derived from the initial rectangular box edge. In common production practice, a special die is adopted to integrally mold and form a sealing piece product of the rubber box edge, and the rubber box edge sealing piece product is required to be designed and manufactured according to the size of the product and is installed on large-scale rubber vulcanization equipment for use, so that the rubber box edge sealing piece is large in size, difficult to carry, high in manufacturing cost and high in equipment energy consumption. And due to the limitation of the mould and equipment, the polygonal special-shaped box edge sealing piece product cannot be produced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a die for solving the problem that the prior die cannot produce polygonal special-shaped box edge sealing piece products.

In order to achieve the above purpose, the technical means adopted by the invention are as follows: the utility model provides a mould, includes mould main part, insert subassembly and lower mould main part, and insert subassembly includes at least one and buckle the insert, and the lower mould main part includes die block and is located two side fender portions of the relative both sides of die block, buckles the insert detachably and connects on the die block and be located between two side fender portions, side fender portion and buckle insert fixed connection.

Preferably, an upper limit rib is arranged on the bottom die, two ends of the upper limit rib are respectively connected with two side blocking parts, the upper limit rib and the two side blocking parts form a semi-closed inner cavity on the bottom die, and the bending insert is positioned in the inner cavity.

Preferably, the bending insert comprises a first connecting part and a second connecting part, and one end of the first connecting part is fixedly connected with one end of the second connecting part to form the bending insert with a bending angle.

Preferably, the first connecting part is provided with a first cavity, the second connecting part is provided with a second cavity, and the first cavity and the second cavity are communicated at the bending angle. During production, the sizing material is placed in the die cavity.

Preferably, the bottom die is further provided with a first chute, the first chute is located below the upper limit rib, the first connecting portion is provided with a first through hole, and the first through hole is correspondingly matched with the first chute and then is penetrated by a fastener. The first through hole can be fixedly connected to any position of the first chute, so that the bending insert is detachably connected to the lower die main body.

Preferably, the bottom die is also provided with a second chute, the second chute is positioned below the first chute, the second connecting part is provided with a second through hole, and the second through hole is correspondingly matched with the second chute and then is penetrated by a fastener. The second through hole can be fixedly connected to any position of the second chute, so that the bending insert is detachably connected to the lower die main body.

Preferably, the outside of buckling insert still is equipped with the recess, and the side of side fender portion is equipped with the screw hole, and the recess corresponds the setting with the screw hole. The threaded holes are penetrated with fasteners, and the fasteners can jack the bending inserts.

Preferably, the bottom die is further provided with a lower limiting rib, the lower limiting rib is located below the upper limiting rib, the upper edge of the first connecting portion is abutted against the upper limiting rib, and the lower edge of the first connecting portion is abutted against the lower limiting rib. The bending insert is restricted from moving up and down during processing.

Preferably, the number of the bending inserts is two, one ends of the two bending inserts are connected with each other, and the other ends of the two bending inserts are respectively positioned on the inner sides of the two side blocking parts.

Preferably, the bending angle of the bending insert is greater than 90 ° and less than 180 °.

Preferably, the insert assembly further comprises a plurality of linear inserts, the plurality of linear inserts being located between the two bent inserts. The mould can produce products with different lengths between two bending angles.

Preferably, a fourth through hole is formed in the linear insert, and a fastener is penetrated after the fourth through hole is correspondingly matched with the first sliding groove, so that the linear insert is detachably connected to the lower die main body.

Preferably, the bottom die is further provided with a mounting part, and the upper die main body is connected with the lower die main body through the mounting part.

The beneficial effects of the invention are as follows: the utility model provides a set up mould main part, insert subassembly and lower mould main part, form the mould, buckle insert and sharp insert detachably connect on the die block, can select different bending insert and sharp insert along the sealing member product according to required rubber case. Compared with the traditional mould, on one hand, the mould can produce two polygonal box edge sealing piece products with shorter bending intervals; on the other hand, the die has light weight, small volume and low energy consumption.

Drawings

Fig. 1 is a schematic perspective view of a lower die body 300 according to an embodiment of the present application;

fig. 2 is a schematic perspective view of a lower die body 300 according to an embodiment of the present invention after mounting an insert assembly;

FIG. 3 is a schematic perspective view of a bending insert 210 according to one embodiment of the present application;

fig. 4 is a schematic perspective view of a linear insert 200 according to an embodiment of the present application;

fig. 5 is a schematic structural view of an upper die body 100 according to an embodiment of the present application.

Detailed Description

As required, specific embodiments of the present invention will be disclosed herein. However, it is to be understood that the embodiments disclosed herein are merely exemplary of the invention, which may be embodied in various forms. Therefore, specific details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately manner, including employing the various features disclosed herein in connection with features that may not be explicitly disclosed.

Referring to fig. 1 to 5, the present embodiment provides a mold, which includes an upper mold body 100, an insert assembly and a lower mold body 300, wherein the insert assembly is located on the lower mold body 300, and the upper mold body 100 and the lower mold body 300 are fixed in a mold closing manner and then are used for molding and preparing a rubber sealing member in a heating and pressurizing manner.

The lower die main body 300 comprises a bottom die 310 and two side blocking portions 320, the bottom die 310 is a plate with uniform thickness, the two side blocking portions 320 are located on two opposite sides of the bottom die 310, the insert assembly is located between the two side blocking portions 320, two ends of the insert assembly are fixedly connected with the two side blocking portions 320 respectively, and the insert assembly is prevented from being displaced.

The insert assembly at least comprises a bending insert 210, the bending insert 210 comprises a first connecting portion 211 and a second connecting portion 212 which are connected with each other, the outer side face of the second connecting portion 212 is fixedly connected with a side blocking portion 320, the first connecting portion 211 is far away from the side blocking portion 320, in the direction of fig. 2, the two side blocking portions 320 are located on two sides of the upper end of the bottom die 310, the outer side of the end portion, close to the first connecting portion 211, of the second connecting portion 212 is fixedly connected with the side blocking portion 320, and the end portion, far away from the first connecting portion 211, of the second connecting portion 212 is located at the lower end of the bottom die 310.

Specifically, the first connecting portion 211 and the second connecting portion 212 are both strip-shaped plates, and after one end of the first connecting portion 211 and one end of the second connecting portion 212 are connected with each other, a bending insert 210 with a bending angle is formed, wherein a bad angle between the first connecting portion 211 and the second connecting portion 212 is defined as the bending angle of the bending insert 210, and the angle of the bending angle is greater than 90 ° and less than 180 °, which is the angle of the bending angle of the produced seal product. In the present embodiment, the first connection portion 211 and the second connection portion 212 are integrally formed, and in other embodiments, the first connection portion and the second connection portion may be fixedly connected by welding or the like, which is not limited herein.

The first connecting portion 211 is provided with a first cavity 216 extending along the length direction of the first connecting portion 211, the first cavity 216 penetrates through two ends of the first connecting portion 211 in the length direction, the second connecting portion 212 is provided with a second cavity 217 extending along the length direction of the second connecting portion, the second cavity 217 penetrates through two ends of the second connecting portion 212 in the length direction, the first cavity 216 and the second cavity 217 are communicated at the joint (bent angle of the bending insert 210) of the first connecting portion 211 and the second connecting portion 212 to form a cavity, and the rubber sealing piece is used for integrally forming the rubber sealing piece in the cavity, and a bent angle section is formed at the bent angle of a sealing piece product.

The first connecting portion 211 is provided with a first through hole 213, a penetrating direction of the first through hole 213 is perpendicular to a plate surface of the first connecting portion 211, and the first through hole 213 is arranged avoiding the first cavity 216. The bottom die 310 is provided with a first chute 313, the first chute 313 is positioned between the upper end of the bottom die 310 and the two side baffle parts 320, the first chute 313 is a strip-shaped groove extending from one side baffle part 320 to the other side baffle part 320, the first chute 313 is matched with the first through hole 213, the first through hole 213 and the first chute 313 are sequentially penetrated through by a fastener, the first connecting part 211 of the bending insert 210 is fixedly connected to the bottom die 310, the detachable connection of the bending insert 210 and the lower die main body 300 is realized, the bending insert 210 can be moved and positioned along the length direction of the first chute 313, and the bending insert 210 with multiple bending angles is suitable for multiple bending angles. The first through holes 213 may be provided in one, two or more, and are not limited herein.

The second connecting portion 212 is provided with a second through hole 214, the penetrating direction of the second through hole 214 is perpendicular to the plate surface of the second connecting portion 212, and the second through hole 214 is arranged avoiding the second cavity 217. The bottom die 310 is provided with a second chute 314, the second chute 314 is positioned at the lower end of the bottom die 310, the second chute 314 is a strip-shaped chute, the extending direction of the second chute 314 is parallel to the extending direction of the first chute 313, the second chute 314 is positioned below the first chute 313, the second chute 314 is matched with the second through hole 214, the second through hole 214 and the second chute 314 are sequentially penetrated through by a fastener, the second connecting part 212 of the bending insert 210 is fixedly connected to the bottom die 310, the detachable connection of the bending insert 210 and the lower die main body 300 is realized, the bending insert 210 can be moved and positioned along the length direction of the second chute 314, and the bending insert 210 with multiple bending angles is suitable for being used. Wherein the second through holes 214 may be provided in one, two or more, without limitation.

The second connecting portion 212 is further provided with a groove 215 at the outer side of the bending angle of the bending insert 210, the side blocking portion 320 is provided with a threaded hole 321, the groove 215 is correspondingly arranged with the threaded hole 321, the threaded hole 321 penetrates through the side blocking portion 320 along the direction perpendicular to the outer side face of the side blocking portion 320, the fastener penetrates through the threaded hole 321 and then tightly abuts against the groove 215, the fixed connection between the side blocking portion 320 and the bending insert 210 is achieved, and further sliding of the bending insert 210 during die pressing is avoided. In this embodiment, the fastening member is a bolt, and the bolt passes through the threaded hole 321 and then abuts against the groove 215, so that the bolt can abut against the bending insert 210 along the penetrating direction of the threaded hole 321, and the depth of the bolt abutting against can be determined according to the setting position of the bending insert 210, so that the bending insert 210 cannot move along the length direction of the first chute 313 after being fastened.

In one embodiment, two bending inserts 210 are provided, the outer side surfaces of the second connecting portions 212 of the two bending inserts 210 are fixedly connected with the two side blocking portions 320, the first connecting portions 211 of the two bending inserts 210 are connected with each other, and then a communicating cavity is formed on the combined insert assembly for integrally preparing the rubber sealing member with two bending angles. The two second sliding grooves 314 are arranged at intervals along the length direction thereof and are used for respectively and fixedly connecting the second connecting portions 212 of the two bending inserts 210.

In another embodiment, the insert assembly further includes a linear insert 200, wherein the linear insert 200 is disposed between the first connection portions 211 of the two bending inserts 210, that is, two ends of the linear insert 200 are respectively connected to the two first connection portions 211 for preparing rubber seals of different sizes.

The linear insert 200 is a rectangular plate, the direction formed by connecting two ends of the two first connecting parts 211 on the linear insert 200 is defined as the length direction of the linear insert 200, the linear insert 200 is provided with a third cavity 201 extending along the length direction, the third cavity 201 penetrates through two ends of the linear insert 200 in the length direction, and the third cavity 201 is communicated with the first cavities 216 on the two first connecting parts 211 and is used for integrally forming the rubber sealing element. The linear insert 200 is further provided with a fourth through hole 221, the penetrating direction of the fourth through hole 221 is perpendicular to the plate surface of the linear insert 200, and the fourth through hole 221 is arranged avoiding the third cavity 201. The fourth through hole 221 is matched with the first chute 313, and the fourth through hole 221 and the first chute 313 are sequentially penetrated through by a fastener, so that the linear insert 200 is fixedly connected to the bottom die 310, and the linear insert 200 and the lower die main body 300 are detachably connected. The fourth through holes 221 may be provided in one, two or more, and are not limited herein.

Meanwhile, the number of the linear inserts 200 may be one, two or more, the size of the linear inserts 200 along the length direction thereof is defined as the length of the linear inserts 200, the plurality of linear inserts 200 are sequentially arranged, the lengths of the plurality of linear inserts 200 may be the same, and the total length of the insert assembly is adjusted by sequentially combining the different numbers of linear inserts 200. In other embodiments, the lengths of the plurality of linear inserts 200 may be different, and the overall length of the insert assembly may be adjusted by sequentially combining or replacing the linear inserts 200 with different lengths, so as to obtain an insert assembly with any length, which is then suitable for preparing rubber seals with various sizes, and increases the versatility of the mold.

And, the height of the linear insert 200 is equal to the height of the first connecting portion 211, where the dimension of the linear insert 200 perpendicular to the longitudinal direction thereof and parallel to the plate surface direction of the linear insert 200 is defined as the height of the linear insert 200, and the dimension of the first connecting portion 211 perpendicular to the longitudinal direction of the first cavity 216 and parallel to the plate surface direction thereof is defined as the height of the first connecting portion 211. That is, the upper end surface of the linear insert 200 is flush with the upper end surface of the first connecting portion 211, and the lower end surface of the linear insert 200 is flush with the lower end surface of the first connecting portion 211.

With continued reference to fig. 1-2, the bottom die 310 is provided with an upper stop rib 311 for limiting upward sliding movement of the bent insert 210 and the linear insert 200 during molding. The upper edge of the upper limit rib 311 coincides with the upper edge of the bottom die 310, two ends of the upper limit rib 311 are respectively connected with two side blocking parts 320, the upper limit rib 311 and the two side blocking parts 320 form a semi-closed inner cavity on the bottom die 310, and the insert assembly is positioned in the inner cavity. Meanwhile, the first chute 313 is located below the upper limit rib 311, so that the bending insert 210 and the linear insert 200 are installed in the inner cavity through the first chute 313, and the upper end surfaces of the bending insert 210 and the linear insert 200 are abutted against the upper limit rib 311.

In this embodiment, an included angle of 135 ° is formed between the inner edge of the side blocking portion 320 and the lower end surface of the upper limiting rib 311, which can be applied to the bending insert 210 with a bending angle of 90 ° to 180 ° (without 90 ° and 180 °), and then a sealing member product with an angle of 90 ° to 180 ° can be produced. Specifically, the bending insert 210 with a proper bending angle is selected according to the angle of the seal product to be processed, and is placed into the lower die main body 300, the upper edge of the first connecting portion 211 of the bending insert 210 is tightly attached to the upper limit rib 311, and the fastener is inserted into the threaded hole 321 to tightly press the groove 215 of the second connecting portion 212, so that the seal product is produced.

In other embodiments, the angle between the inner edge of the side blocking portion 320 and the lower end surface of the upper limit rib 311 may be 90 ° -150 ° (excluding 90 °, including 150 °), and since the angle of the bending insert 210 is greater than 90 °, the angle between the inner edge of the side blocking portion 320 and the lower end surface of the upper limit rib 311 may be greater than 90 °; in order to reduce the area of the lower die body 300 and save the material of the die, the angle between the inner edge of the side blocking part 320 and the lower end surface of the upper limit rib 311 is set to be less than or equal to 150 degrees, in this range, the die can be used for producing sealing element products with an angle of 90-180 degrees, and the effect that the fastener passes through the threaded hole to tightly prop up the bending insert 210 is also better. For example, when the required polygonal box edge sealing element product is a regular hexagon, the bending angle of the sealing element product is 120 degrees, so that an included angle of 120 degrees is formed between the inner edge of the side blocking part 320 and the lower end surface of the upper limiting rib 311, and the bending insert 210 with the bending angle of 120 degrees is directly placed in the lower die main body 300, so that the sealing element product can be directly matched and fixed, and is convenient to produce; when the required polygonal box edge sealing element product is a regular pentagon, the bending angle of the sealing element product is 108 degrees, so that a 108-degree included angle is formed between the inner edge of the side blocking part 320 and the lower end surface of the upper limiting rib 311, and the bending insert 210 with the bending angle of 108 degrees is directly placed in the lower die main body 300, so that the sealing element product can be directly matched and fixed, and the production is convenient. The angle between the inner edge of the side blocking portion 320 and the lower end surface of the upper limit rib 311 is equal to the angle of the bending angle of the sealing member product, so that the bending insert 210 with the same angle can be conveniently fixed, and of course, bending inserts with other angles can be placed, so that sealing member products with other angles can be produced.

The bottom die 310 is provided with a lower limit rib 312 for limiting the downward sliding of the bending insert 210 and the linear insert 200 during the molding. The lower limit rib 312 is located below the upper limit rib 311 and is parallel to the upper limit rib 311, and the distance between the lower limit rib 312 and the upper limit rib 311 is equal to the height of the first connecting portion 211, that is, when the bending insert 210 and the linear insert 200 are installed in the inner cavity, the lower edges of the first connecting portion 211 of the bending insert 210 and the linear insert 200 are abutted to the lower limit rib 312, so that the bending insert 210 and the linear insert 200 cannot move up and down in the inner cavity under the limitation of the upper limit rib 311 and the lower limit rib 312.

In this embodiment, the lower stop rib 312 is centrally disposed on the bottom die 310 and has a length that is one-half the length of the upper stop rib 311, such that the lower stop rib 312 does not impede the installation of the bending insert 210 in the cavity. In other embodiments, the lower limiting rib may be provided in other lengths and other positions, so long as the limiting effect on the bending insert and the linear insert is achieved and the installation of the bending insert is not hindered, and the limiting is not limited herein.

Further, the bottom die 310 is provided with a first lightening hole 315, and the first lightening hole 315 can lighten the weight of the bottom die 310, save materials and reduce cost. In this embodiment, the first lightening hole 315 is provided as one, and the first lightening hole 315 is provided as a rounded rectangle, and is located between the lower limit rib 312 and the second chute 314. In other embodiments, the number of the first lightening holes may be several, and is not limited herein according to actual use.

Referring to fig. 1 and 5, the lower die body 300 is further provided with a mounting portion 330, and the mounting portion 330 includes a positioning pin 331 and a safety portion 332. The safety portion 332 is a columnar body, after the insert assembly is installed in the semi-closed inner cavity on the bottom die 310, the upper die cover plate 110 is covered during die assembly, and at this time, the safety portion 332 props against the upper die cover plate 110, so that a gap exists between the upper die cover plate 110 and the insert assembly, and the insert assembly and the lower die main body 300 are prevented from being crushed by the upper die main body 100 when the pressure is abnormal. The bottom die 310 is vertically provided with a locating pin 331 on the surface, and the locating pin 331 penetrates through the safety part 332. In other embodiments, the positioning pin may be directly disposed on the surface of the safety portion, or disposed on a portion of the bottom mold that is not in contact with the safety portion, so long as the positioning function is achieved, and the positioning pin is not limited herein. In the present embodiment, the number of the mounting portions 330 is 3, wherein two of the mounting portions 330 are located on the side stopper portions 320 and exhibit an irregular profile; the other mounting portion 330 is located at the lower end of the bottom die 310 and presents a circular profile. In other embodiments, the mounting portion may be at least one, and the mounting portion may be any shape, and may be distributed at any position on the bottom die, so long as normal use of the die is not affected, and the mounting portion is not limited herein.

The lower mold body 300 is further provided with two first handles 340 respectively located at the outer side surfaces of the bottom mold 310 for opening or closing the upper mold body 100 and the lower mold body 300, thereby facilitating manual operation.

With continued reference to fig. 5, the upper die body 100 includes an upper die cover plate 110, a second relief hole 120, a locating hole 130, and two second handles 140.

The upper die cover plate 110 is the same size and shape as the lower die 310 for covering the lower die body 300 and transferring heat and pressure to the mounted insert assembly and lower die body 300.

The second lightening holes 120 are used for lightening the weight of the upper mold cover plate 110, saving materials and reducing cost. In the present embodiment, the second lightening holes 120 are provided in two, and the second lightening holes 120 are provided in a rounded rectangle. When the upper die cover plate 110 covers the lower die body 300, the second relief holes 120 must not be provided above the linear insert 200 and the bent insert 210 to prevent the glue from overflowing or the insert assembly from moving during processing. In other embodiments, the number of the second lightening holes may be several, and is not limited herein according to actual use.

The positioning holes 130 are arranged at the same positions and the same number as the mounting parts 330, the positioning holes 130 are matched with the positioning pins 331 on the mounting parts 330, the positioning pins 331 penetrate through the positioning holes 130 to be used for positioning the upper die main body 100, so that the disassembly and assembly operations are convenient, and the mounting precision of the upper die main body 100 and the lower die main body 300 can be ensured.

The two second handles 140 are respectively located at the outer sides of the upper mold body 100 for opening or closing the upper mold body 100 and the lower mold body 300, thereby facilitating manual operation. Meanwhile, when the upper mold cover 110 covers the lower mold body 300, the second handle 140 is far away from the first handle 340, and the second handle 140 is not in contact with the first handle 340, so that the upper mold cover 110 is prevented from being easily separated from the lower mold body 300.

The working principle of the invention is as follows: in use, the second handle 140 is first held to open the upper mold body 100. Selecting two bending inserts 210 with proper bending angles according to the size requirement of a required product, and butting and placing first connecting parts 211 of the two bending inserts 210 into an inner cavity; alternatively, a suitable size and number of linear inserts 200 are simultaneously selected to be disposed between the first connecting portions 211 of the two bent inserts 210 to accommodate the size of the manufactured product; alternatively, only one bending insert 210 is selected for placement in the cavity and crimped with other lengths of product after processing is completed to obtain a product having a length greater than the mold. Next, the upper edge of the first connection portion 211 is abutted against the upper limit rib 311, and the lower edge is abutted against the lower limit rib 312. Next, the bolt inserted through the two screw holes 321 is tightened, and the bending insert 210 is pressed against the bolt in the left-right direction, thereby restricting the left-right movement of the bending insert 210. Again, the bending insert 210 is fixedly connected to the bottom die 310 by fasteners passing through the first through hole 213 and the first runner 313, and through the second through hole 214 and the second runner 314, respectively. Thereafter, a solid gum material is placed in the cavity. Then, the upper die body 100 is covered on the lower die body 300 by the positioning pin 331, and the positioning pin 331 is penetrated with the positioning hole 130. Finally, the mold is placed in the curing apparatus for heating by holding the first handle 340. After the mold is heated to a predetermined temperature, the mold is cleaned and heated again to the production temperature. After the processing is completed, the second handle 140 is held, the mold is opened, and the processed product is taken out.

When the required product can be formed at one time by using the die, a proper insert assembly is selected according to the length of the product and the angle of the bending angle, the proper insert assembly is placed into the inner cavity, the upper edge of the first connecting portion 211 of the bending insert 210 is abutted against the upper limit rib 311, the lower edge is abutted against the lower limit rib 312, the second connecting portion 212 of the bending insert 210 can be abutted against the side blocking portion 320 or not contacted with the side blocking portion 320, and the bolt passes through the threaded hole 321 to tightly push the bending insert 210.

If the die can not produce the required product at one time, the die can be disassembled for production, and only one bending angle section can be produced at one time. The selected bending insert 210 is placed into the inner cavity, the upper edge of the first connecting part 211 of the bending insert 210 is abutted against the upper limit rib 311, the lower edge is abutted against the lower limit rib 312, and the bolt passes through the threaded hole 321 to tightly prop against the bending insert 210. The gum material is placed into the cavity of one of the bending inserts 210 for production. After the two bending angle sections are respectively produced, the two bending angle sections are crimped according to the required length, or a straight line section with proper length is added between the two bending angle sections and crimped, so that the required product is obtained.

The die can be used for producing a sealing element product with adjustable length and bending angle, and has the advantages of small size, low manufacturing cost, energy conservation and convenient use.

While the present disclosure and features have been described above with respect to specific embodiments, it will be appreciated that those skilled in the art, upon attaining the teachings of the present disclosure, may readily devise numerous variations and modifications of the above-described structures and materials, including combinations of features that are individually disclosed or claimed herein, and obviously other combinations of such features. Such variations and/or combinations fall within the technical field to which the invention relates and fall within the scope of the claims of the invention.

Claims (13)

1. The die is characterized by comprising an upper die main body, an insert assembly and a lower die main body, wherein the insert assembly at least comprises a bending insert, the lower die main body comprises a bottom die and two side blocking parts positioned on two opposite sides of the bottom die, the bending insert is detachably connected to the bottom die and positioned between the two side blocking parts, and the side blocking parts are fixedly connected with the bending insert.

2. The die of claim 1, wherein the bottom die is provided with an upper limit rib, two ends of the upper limit rib are respectively connected with two side blocking parts, the upper limit rib and the two side blocking parts form a semi-closed inner cavity on the bottom die, and the bending insert is positioned in the inner cavity.

3. The die of claim 2, wherein the bending insert comprises a first connecting portion and a second connecting portion, wherein one end of the first connecting portion is fixedly connected to one end of the second connecting portion to form the bending insert with a bending angle.

4. A mould according to claim 3, wherein the first connecting portion is provided with a first cavity and the second connecting portion is provided with a second cavity, the first cavity and the second cavity being in communication at the bending angle.

5. The mold of claim 4, wherein the bottom mold is further provided with a first chute, the first chute is located below the upper limit rib, the first connecting portion is provided with a first through hole, and the first through hole is correspondingly matched with the first chute and then is penetrated by a fastener.

6. The mold according to claim 5, wherein the bottom mold is further provided with a second chute, the second chute is located below the first chute, the second connecting portion is provided with a second through hole, and the second through hole is correspondingly matched with the second chute and then is penetrated by a fastener.

7. The die of claim 1, wherein the outer side of the bending insert is further provided with a groove, the side of the side stop is provided with a threaded hole, and the groove is disposed corresponding to the threaded hole.

8. The die of claim 3, wherein the bottom die is further provided with a lower limit rib, the lower limit rib is located below the upper limit rib, the upper edge of the first connecting portion abuts against the upper limit rib, and the lower edge of the first connecting portion abuts against the lower limit rib.

9. The die of claim 5, wherein the number of the bending inserts is two, one ends of the two bending inserts are connected to each other, and the other ends of the two bending inserts are respectively located inside the two side blocking portions.

10. The die of claim 1, wherein the bend angle of the bending insert is greater than 90 ° and less than 180 °.

11. The die of claim 9, wherein the insert assembly further comprises a plurality of linear inserts, the plurality of linear inserts being located between two of the bent inserts.

12. The die of claim 11, wherein the linear insert is provided with a fourth through hole, and a fastener is inserted through the fourth through hole after the fourth through hole is correspondingly matched with the first chute, so that the linear insert is detachably connected to the lower die main body.

13. The mold according to claim 1, wherein the bottom die is further provided with a mounting portion, and the upper die body and the lower die body are connected by the mounting portion.