CN219727040U - Forming die - Google Patents

Abstract

Forming die, forming die includes upper die and lower mould that open the fit, and the lower mould includes: the lower die assembly is arranged opposite to the upper die and is provided with an inclined guide hole and a clamping piece; the fixed plate is arranged on one side of the lower die assembly; and forming the assembly. The molding assembly includes: the limiting piece is arranged on the fixed plate and is provided with a first chute and a second chute along the edge; the first forming piece movably penetrates through the inclined guide hole and the limiting piece and is provided with a limiting groove and a supporting part, the limiting groove is arranged on the outer periphery side of the first forming piece and is in contact with the clamping piece, and the supporting part is arranged in the first chute in a sliding manner; and the second forming part movably penetrates through the first forming part and the limiting part and is provided with a protruding part matched with the second chute, and the protruding part is arranged in the second chute in a sliding way. The forming die can avoid interference between the forming assembly and the oblique convex column of the workpiece during die opening, so that the forming die can stably finish demoulding the workpiece with the oblique convex column, and the forming stability is improved.

Description

Forming die

Technical Field

The utility model relates to a product injection molding device, in particular to a molding die.

Background

At present, the application range of the forming mold is wider and wider, the forming mold can form different types of products, such as a horn shell, and a BOSS column, namely a BOSS column, is arranged on the inner side wall of the horn shell, and the BOSS column is generally used for accommodating a screw or supporting another part of a finished product of the product. However, when the forming die is opened, the forming slider interferes with the BOSS column during the process of withdrawing the formed BOSS column, thereby reducing the forming stability.

Disclosure of Invention

In view of the above, it is necessary to provide a molding die to improve molding stability.

The embodiment of the utility model provides a forming die which comprises an upper die and a lower die which are matched appropriately, wherein the upper die and the lower die are used for forming a forming cavity of an injection molding workpiece, the workpiece is provided with a slanting convex column, and the slanting convex column is provided with a slanting mounting groove. The lower die includes: the lower die assembly is arranged opposite to the upper die and is provided with an inclined guide hole and a clamping piece, the inclined guide hole penetrates through the lower die assembly, and the clamping piece protrudes into the inclined guide hole along the direction perpendicular to the extending direction of the inclined guide hole; the fixed plate is arranged on one side of the lower die assembly, which is away from the upper die; and forming the assembly. The molding assembly includes: the limiting piece is arranged on the fixed plate and is provided with a first chute and a second chute at intervals along the direction of the upper die pointing to the lower die; the first forming part movably penetrates through the inclined guide hole and the limiting part and is provided with a limiting groove and a supporting part, the limiting groove is formed in the outer peripheral side of the first forming part and is in contact with the clamping part, the supporting part is formed in one end, adjacent to the limiting part, of the first forming part and is arranged in the first chute in a sliding manner, and the width of the supporting part is smaller than the interval between two opposite chute walls of the first chute; and the second forming part is movably arranged on the first forming part in a penetrating manner, the limiting part is provided with a protruding part matched with the second chute, the protruding part is arranged in the second chute in a sliding manner, and the second forming part is matched with the first forming part to form the oblique protruding column.

When the forming die is closed, the first forming piece and the second forming piece cooperate with the upper die and the lower die to form a forming cavity, an oblique convex column with an oblique mounting groove is formed in an injection molding mode, meanwhile, the clamping piece is abutted in the limiting groove to limit the first forming piece, and the abutting part is abutted to the groove wall of the first chute far away from the upper die; when the forming die is opened, the limiting piece moves away from the upper die relative to the lower die assembly, the abutting part abuts against the groove wall of the first chute adjacent to the upper die, meanwhile, the protruding part slides in the second chute under the drive of the limiting piece, so that the second forming piece is separated from the inclined mounting groove by a preset distance, adhesion between the inclined convex column and the first forming piece and between the inclined convex column and the second forming piece is prevented, meanwhile, the clamping piece continuously abuts against the limiting groove when the second forming piece is separated from the inclined mounting groove by the preset distance, and further synchronous movement of the first forming piece and the second forming piece under the drive of the limiting piece is prevented; when the forming die continues to open, the limiting part drives the abutting part and the protruding part to slide in the first chute and the second chute respectively, and meanwhile, the first forming part extrudes the clamping part through the wall of the limiting groove, so that the clamping part moves out of the limiting groove and loosens the first forming part, the first forming part and the second forming part move away from the upper die simultaneously under the driving of the limiting part, and the inclined guide hole guides the first forming part moving away from the upper die, so that the first forming part and the second forming part completely retract from the inclined convex column arranged obliquely, interference between the forming assembly and the inclined convex column of the workpiece during die opening is avoided, the demolding difficulty of the forming die is reduced, the forming die is enabled to stably finish demolding of the workpiece with the inclined convex column, and the forming stability is improved.

In some embodiments, the second molding comprises: the movable part is movably arranged on the first forming part and the limiting part in a penetrating way and is connected with the protruding part; and the forming part is arranged at one end of the movable part, which is far away from the protruding part, and is used for forming the inner groove wall of the inclined mounting groove.

In some embodiments, the axes of the first and second molded parts are on the same central axis as the axes of the oblique guide holes.

In some embodiments, the limiting member is further provided with a position-avoiding groove and a communicating groove, the position-avoiding groove is formed in one side, facing the upper die, of the limiting member and is communicated with the first chute, the position-avoiding groove is used for accommodating and avoiding part of the first forming member, the communicating groove is respectively communicated with the first chute and the second chute, and the communicating groove is used for accommodating and avoiding part of the second forming member.

In some embodiments, the lower die assembly further comprises: the lower die plate is arranged opposite to the upper die; the lower die core is arranged on one side, facing the upper die, of the lower die plate and is used for forming the forming cavity by cooperating with the forming assembly and the upper die in a surrounding manner; the guide piece is arranged on one side, away from the upper die, of the lower die plate and is detachably connected with the lower die plate, the guide piece is provided with an inclined guide hole and a containing groove, and the containing groove is arranged along the direction perpendicular to the extending direction of the inclined guide hole and contains part of the clamping piece.

In some embodiments, the lower die further comprises: the elastic piece is arranged between the lower die plate and the fixed plate and is used for driving the lower die plate to deviate from the fixed plate.

In some embodiments, the lower die plate is further provided with a receiving groove, and the receiving groove receives the elastic piece and is used for limiting the elastic piece.

In some embodiments, an end of the retaining member facing the limiting groove is spherical.

In some embodiments, the lower die further comprises a spike assembly comprising: the ejector plate is arranged on one side of the fixed plate, which is away from the lower die assembly; the ejector pin is arranged on one side, facing the upper die, of the ejector pin plate and penetrates into the upper die assembly, and the ejector pin is used for propping against the workpiece to be separated from the forming cavity under the driving of the ejector pin plate.

In some embodiments, the number of the ejector pins is multiple, multiple groups of ejector pins are arranged on the ejector pin plate at intervals, and multiple groups of ejector pins are used for simultaneously pushing the workpiece to separate from the forming cavity.

Drawings

Fig. 1 is a schematic perspective view of a forming mold according to an embodiment of the present utility model.

FIG. 2 is a schematic cross-sectional view of the molding die shown in FIG. 1 along the direction II-II.

Fig. 3 is an enlarged schematic view of a position iii in the molding die shown in fig. 2.

Fig. 4 is a schematic perspective view of a part of the lower die assembly and the molding assembly of the molding die shown in fig. 1 and a product suitable for the molding die.

Fig. 5 is a schematic view showing a part of the lower die assembly and the molding assembly of the molding die shown in fig. 4 and an exploded structure of a product suitable for the molding die.

Fig. 6 is a schematic view showing a structure in which a part of the lower die assembly and the molding assembly of the molding die shown in fig. 4 are in a clamped state.

Fig. 7 is a schematic view of a portion of the lower die assembly and the molding assembly of the molding die shown in fig. 4 in a first open state.

Fig. 8 is a schematic view of a portion of the lower die assembly and the molding assembly of the molding die of fig. 4 in a second open state.

Fig. 9 is an exploded view of the molding die of fig. 1.

Fig. 10 is a schematic perspective view of a lower plate of the molding die shown in fig. 9.

Description of the main reference signs

Forming die 100

Upper die 101

Lower die 102

Forming cavity 103

Lower die assembly 10

Oblique guide hole 11

Clamping piece 12

Lower die plate 13

Storage groove 131

Lower die core 14

Guide 15

Accommodation groove 151

Fixing plate 20

Forming assembly 30

Limiting member 31

First chute 311

Second chute 312

Avoidance slot 313

Communication groove 314

First molded part 32

Limiting groove 321

Holding portion 322

Second molding member 33

Boss 331

Movable portion 332

Forming part 333

Elastic member 40

Thimble assembly 50

Ejector plate 51

Thimble 52

Connecting plate 60

Storage space 61

Support plate 70

Workpiece 200

Oblique stud 201

Oblique mounting groove 2011

Central axis O

Parallel axis L

Included angle theta

Detailed Description

The utility model will be described in detail below with reference to the drawings and the specific embodiments thereof in order to more clearly understand the objects, features and advantages of the utility model. It should be noted that, without conflict, embodiments of the present utility model and features in the embodiments may be combined with each other. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, the described embodiments are merely some, rather than all, embodiments of the present utility model. Embodiments of the present utility model will be further described below with reference to the accompanying drawings.

Referring to fig. 1, an embodiment of the present utility model provides a forming mold 100, where the forming mold 100 includes an upper mold 101 and a lower mold 102 that are appropriately matched, the forming mold 100 is used for forming a forming cavity 103 as shown in fig. 2, the forming cavity 103 is used for injection molding a workpiece 200 as shown in fig. 4, the workpiece 200 is provided with a slant protrusion 201 as shown in fig. 5, and the slant protrusion 201 is provided with a slant mounting groove 2011.

Referring to fig. 2 and 3, the lower die 102 includes a lower die assembly 10, a fixing plate 20 and a molding assembly 30. The lower die assembly 10 is disposed opposite to the upper die 101 and is provided with an inclined guide hole 11 and a clamping member 12, the inclined guide hole 11 penetrates the lower die assembly 10, and the clamping member 12 protrudes into the inclined guide hole 11 along a direction perpendicular to an extending direction of the inclined guide hole 11. The fixing plate 20 is provided at a side of the lower die assembly 10 facing away from the upper die 101. The molding assembly 30 includes a stopper 31, a first molding member 32, and a second molding member 33. The limiting members 31 are disposed on the fixed plate 20 and are provided with a first chute 311 and a second chute 312 at intervals along the direction of the upper die 101 pointing to the lower die 102. The first forming piece 32 movably penetrates through the inclined guide hole 11 and the limiting piece 31 and is provided with a limiting groove 321 and a supporting part 322, the limiting groove 321 is arranged on the outer circumferential side of the first forming piece 32 and is abutted to the clamping piece 12, the supporting part 322 is arranged at one end, adjacent to the limiting piece 31, of the first forming piece 32 and is slidably arranged in the first chute 311, and the width of the supporting part 322 is smaller than the interval between two opposite chute walls of the first chute 311. The second forming part 33 movably penetrates through the first forming part 32 and the limiting part 31 and is provided with a protruding portion 331 matched with the second chute 312, and the protruding portion 331 is slidably arranged in the second chute 312.

When the molding die 100 is clamped, that is, when the molding die 100 is in a clamped state, the first molding member 32 and the second molding member 33 cooperate with the upper die 101 and the lower die 10 to form the molding cavity 103, and the oblique convex column 201 with the oblique mounting groove 2011 is injection molded, meanwhile, as shown in fig. 6, the clamping member 12 abuts against the limiting groove 321 to limit the first molding member 32, and the abutting portion 322 abuts against the groove wall of the first chute 311 away from the upper die 101;

when the forming mold 100 is opened, that is, the forming mold 100 is in a first mold opening state, as shown in fig. 7, the limiting piece 31 moves away from the upper mold 101 relative to the lower mold assembly 10, so that the abutting part 322 abuts against the groove wall of the first chute 311 adjacent to the upper mold 101, meanwhile, the protruding part 331 slides in the second chute 312 under the driving of the limiting piece 31, so that the second forming piece 33 is separated from the oblique mounting groove 2011 by a preset distance, and adhesion between the oblique convex column 201 and the first forming piece 32 and the second forming piece 33 is prevented, and meanwhile, the clamping piece 12 continuously abuts against the limiting groove 321 when the second forming piece 33 is separated from the oblique mounting groove 2011 by a preset distance, so that the first forming piece 32 and the second forming piece are prevented from synchronously moving under the driving of the limiting piece 31;

when the forming die 100 continues to open, that is, the forming die 100 is in a second open state, as shown in fig. 8, the abutting portion 322 and the protruding portion 331 are driven by the limiting piece 31 to slide in the first chute 311 and the second chute 312 respectively, meanwhile, the first forming piece 32 presses the clamping piece 12 through the groove wall of the limiting groove 321, so that the clamping piece 12 moves out of the limiting groove 321 and releases the first forming piece 32, the first forming piece 32 and the second forming piece 33 are driven by the limiting piece 31 to move away from the upper die 101 at the same time, the first forming piece 32 moving away from the upper die 101 is guided by the inclined guide hole 11, so that the first forming piece 32 and the second forming piece 33 completely withdraw from the inclined convex column 201 which is arranged in an inclined manner, as shown in fig. 8, interference between the forming assembly 30 and the inclined convex column 201 of the workpiece 200 is avoided, the demolding difficulty of the forming die 100 is reduced, the workpiece 200 with the inclined convex column 201 is stably demolded, and the forming stability is improved.

It can be understood that the above-mentioned predetermined distance is a distance between the upper surface of the abutting portion 322 adjacent to the upper die 101 and the groove wall of the first chute 311 adjacent to the upper die 101 when the forming die 100 is in the closed state.

Referring to fig. 3 and 5, in some embodiments, the second molding member 33 includes a movable portion 332 and a molding portion 333. The movable portion 332 movably penetrates through the first molding member 32 and the limiting member 31 and is connected with the protruding portion 331. The forming portion 333 is disposed at an end of the movable portion 332 away from the protruding portion 331, and the forming portion 333 is used for forming an inner groove wall of the inclined mounting groove 2011.

By providing the movable portion 332 and the molding portion 333 to be engaged with each other in this manner, the molding portion 333 can be surrounded by the movable portion 332 to form the molding cavity 103, and the molding portion can be stably engaged with the inner wall of the inclined mounting groove 2011, thereby improving the molding stability.

Referring to fig. 6, in some embodiments, the axes of the first molding member 32 and the second molding member 33 and the axes of the inclined guiding holes 11 are located on the same central axis O, so that the first molding member 32 and the second molding member 33 always move along the extending direction of the groove wall of the inclined mounting groove 2011 under the guiding of the inclined guiding holes 11, and the first molding member 32 and the second molding member 33 are prevented from colliding with the inclined protruding column 201 during the process of retreating from the inclined protruding column 201, so as to improve the demolding stability of the molding mold 100.

It will be appreciated that the central axis O shown in fig. 6 is the central axis of the first molding member 32 and the second molding member 33, the parallel axis L shown in fig. 6 is an axis parallel to the central axis of the workpiece 200, and the angle θ formed by the parallel axis L and the central axis O is the inclination angle of the oblique boss 201 with respect to the central axis of the workpiece 200.

Referring to fig. 5 and 6, in some embodiments, the limiting member 31 is further provided with a clearance groove 313 and a communication groove 314, the clearance groove 313 is formed on one side of the limiting member 31 facing the upper die 101 and is communicated with the first chute 311, the clearance groove 313 is used for accommodating and avoiding part of the first molding member 32, the communication groove 314 is respectively communicated with the first chute 311 and the second chute 312, and the communication groove 314 is used for accommodating and avoiding part of the second molding member 33.

In this way, by providing the clearance groove 313 to receive a part of the first molding material 32 and providing the communication groove 314 to receive a part of the second molding material 33, the clearance groove 313 and the communication groove 314 can be made to respectively avoid the first molding material 32 and the second molding material 33 when the molding die 100 is opened, and interference between the first molding material 32 and the second molding material 33 and the stopper 31 when the molding die is opened can be prevented, thereby improving the demolding stability of the molding die 100.

Referring to fig. 2, 3 and 9, in some embodiments, the lower die assembly 10 further includes a lower die plate 13, a lower die core 14 and a guide 15. The lower die plate 13 is opposite to the upper die 101, the lower die core 14 is arranged on one side of the lower die plate 13 facing the upper die 101, and the lower die core 14 is used for forming a forming cavity 103 by combining the forming assembly 30 and the upper die 101. The guide member 15 is disposed on a side of the lower die plate 13 away from the upper die 101 and detachably connected to the lower die plate 13, the guide member 15 is provided with an inclined guide hole 11 and a receiving groove 151, and the receiving groove 151 is disposed in a direction perpendicular to an extending direction of the inclined guide hole 11 and receives a part of the clamping member 12.

In this way, the guide member 15 is detachably connected to the lower die plate 13, so that the guide member 15 and the forming assembly 30 can be conveniently assembled, the structure of the lower die assembly 10 is simplified, and the production cost and the maintenance cost of the forming die 100 are reduced. In addition, by providing the accommodating groove 151, the holding member 12 accommodated in the accommodating groove 151 can maintain a predetermined orientation, so that the holding member 12 stably abuts against the limiting groove 321 along a direction perpendicular to the extending direction of the inclined guiding hole 11, thereby improving the limiting stability of the holding member 12 and further improving the demolding stability of the molding die 100.

Referring to fig. 9, in some embodiments, the lower die 102 further includes an elastic member 40, the elastic member 40 is disposed between the lower die plate 13 and the fixed plate 20, and the elastic member 40 is used to drive the lower die plate 13 to move away from the fixed plate 20. In this embodiment, the elastic member 40 may be a spring.

When the upper and lower molds 101 and 102 are clamped, the elastic member 40 is compressed to the fixed plate 20 by the lower mold plate 13, and when the upper and lower molds 101 and 102 are opened, the compressed elastic member 40 is restored to an original length and provides an elastic force to drive the lower mold plate 13 to move away from the fixed plate 20. In this way, by providing the elastic member 40, the elastic member 40 can provide elastic force to drive the lower die plate 13 to move away from the fixed plate 20 during die opening, so that the first molding member 32 and the second molding member 33 move away from the upper die 101 relative to the lower die assembly 10, and the first molding member 32 and the second molding member 33 are rapidly retracted from the molded workpiece 200, thereby improving the demolding efficiency of the workpiece 200 and further improving the molding efficiency of the molding die 100.

It can be appreciated that the number of the elastic members 40 may be multiple, two or more, and the driving force of the lower mold plate 13 moving away from the fixed plate 20 can be increased by providing multiple groups of elastic members 40, so as to improve the demolding efficiency of the forming mold 100 and further improve the forming efficiency.

Referring to fig. 10, in some embodiments, the lower die plate 13 is further provided with a receiving groove 131, and the receiving groove 131 receives the elastic member 40 for limiting the elastic member 40.

In this way, the elastic member 40 is accommodated in the accommodating groove 131, so that the elastic member 40 can be always compressed or restored to the original length along the extending direction of the accommodating groove 131, even if the elastic member 40 always provides the elastic force along the mold opening direction, the stability of the elastic force provided by the elastic member 40 is improved, and the molding stability of the molding mold 100 is further improved.

It should be understood that the installation position of the receiving groove 131 is not fixed, and the receiving groove 131 may be disposed on the fixing plate 20, so that the receiving groove 131 disposed on the fixing plate 20 limits the elastic member 40.

Referring to fig. 3, in some embodiments, an end of the retaining member 12 facing the limiting groove 321 is spherical. Thus, when the limiting member 31 drives the first forming member 32 and the second forming member 33 to completely retract from the oblique convex column 201, the end of the clamping member 12 facing the limiting groove 321 is spherical, so that the friction force between the clamping member 12 and the groove wall of the limiting groove 321 can be reduced, the clamping member 12 can rapidly and stably slide out of the limiting groove 321, and the demolding stability of the forming mold 100 is improved.

Referring to fig. 9, in some embodiments, lower mold 102 further includes a pin assembly 50, pin assembly 50 including a pin plate 51 and a pin 52. The ejector plate 51 is provided on a side of the fixing plate 20 facing away from the lower die assembly 10. The ejector pin 52 is disposed on a side of the ejector plate 51 facing the upper die 101 and penetrates into the lower die assembly 10, and the ejector pin 52 is used for abutting the workpiece 200 to be separated from the forming cavity 103 under the driving of the ejector plate 51.

In this way, by providing the ejector pin plate 51 and the ejector pin 52, after the first molding member 32 and the second molding member 33 are retracted from the molded oblique boss 201, the ejector pin 52 can be pushed against the workpiece 200 by the ejector pin plate 51 to be quickly separated from the molding cavity 103, so that the demolding efficiency of the molding die 100 is improved, and the molding stability of the molding die 100 is further improved.

In some embodiments, the number of the ejector pins 52 is multiple, the multiple ejector pins 52 are spaced apart on the ejector plate 51, and the multiple ejector pins 52 are used to simultaneously push the workpiece 200 out of the forming cavity 103. It is understood that the multiple groups are two or more groups.

In this embodiment, the size structure of the workpiece 200 is larger, so, by setting multiple groups of ejector pins 52, the contact area between the ejector pin assembly 50 and the workpiece 200 can be increased, so that the multiple groups of ejector pins 52 push the workpiece 200 to separate from the forming cavity 103 at the same time, and the workpiece 200 is prevented from shaking or deflecting in the process of separating from the forming cavity 103, thereby improving the demolding stability of the forming mold 100 and further improving the forming stability of the forming mold 100.

Referring to fig. 9, the lower die 102 further includes two connection plates 60 and a support plate 70. The two connection plates 60 are arranged at intervals along a direction perpendicular to the die opening direction of the forming die 100 and are connected with one side of the fixing plate 20, which is away from the upper die 101, and the support plates 70 are respectively connected with one ends of the two connection plates 60, which are away from the fixing plate 20, and form a storage space 61 between the two connection plates 60.

In this way, by providing two connection plates 60 and the support plate 70 to cooperate, the fixing plate 20 can be fixed and supported, so that the forming die 100 stably forms the work 200, thereby improving the forming stability. In addition, by providing the storage space 61, the ejector plate 51 can be stored in the storage space 61, so that the ejector plate 51 stably drives the ejector pins 52 to eject the workpiece 200 in the storage space 61, interference between the ejector plate 51 and other components is avoided, and molding stability of the molding die 100 is further improved.

The working process of the forming mold 100 is as follows:

firstly, the upper die 101 and the lower die 102 are clamped to form a molding cavity 103 of the injection molding workpiece 200, the first molding piece 32 and the second molding piece 33 extend into the molding cavity 103 and participate in the oblique convex column 201 of the injection molding workpiece 200, meanwhile, the clamping piece 12 is abutted in the limiting groove 321 to limit the first molding piece 32, and the abutting part 322 is abutted in the groove wall of the first chute 311 away from the upper die 101;

then, after the injection molding of the workpiece 200, the upper die 101 and the lower die 102 are opened, the compressed elastic piece 40 drives the lower die plate 13 to move away from the fixed plate 20, the limiting piece 31 moves away from the upper die 101 relative to the lower die assembly 10, so that the protruding part 331 slides in the second chute 312 and drives the second molding piece 33 to be separated from the inclined mounting groove 2011 by a preset distance under the driving of the limiting piece 31, adhesion between the inclined protruding column 201 and the first molding piece 32 and the second molding piece 33 is prevented, meanwhile, the abutting part 322 abuts against the groove wall of the first chute 311 adjacent to the upper die 101, the clamping piece 12 is continuously abutted in the limiting groove 321 when the second molding piece 33 is separated from the inclined mounting groove 2011 by a preset distance, and further the first molding piece 32 is prevented from synchronously moving with the second molding piece 33 in the process of separating from the inclined mounting groove 2011 by the preset distance;

finally, the forming die 100 continues to open the die, the supporting part 322 and the protruding part 331 are driven by the limiting piece 31 to slide in the first chute 311 and the second chute 312 respectively, meanwhile, the first forming piece 32 extrudes the clamping piece 12 through the chute wall of the limiting groove 321, so that the clamping piece 12 moves out of the limiting groove 321 and releases the first forming piece 32, the first forming piece 32 and the second forming piece 33 simultaneously move away from the upper die 101 under the driving of the limiting piece 31, the first forming piece 32 moving away from the upper die 101 is guided by the inclined guide hole 11, and the first forming piece 32 and the second forming piece 33 completely withdraw from the inclined convex column 201 which is obliquely arranged, so that the forming assembly 30 is prevented from interfering with the inclined convex column 201 of the workpiece 200 during die opening, the die stripping difficulty of the forming die 100 is reduced, the forming die 100 is enabled to stably finish the die stripping 200 of the workpiece 200 with the inclined convex column 201, and the forming stability is improved.

Finally, it should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims (10)

1. The utility model provides a forming die, is including opening the last mould and the lower mould of suitable joining in marriage for form the shaping chamber of injection moulding work piece, the work piece is provided with oblique projection, just oblique mounting groove has been seted up to oblique projection, its characterized in that, the lower mould includes:

the lower die assembly is arranged opposite to the upper die and is provided with an inclined guide hole and a clamping piece, the inclined guide hole penetrates through the lower die assembly, and the clamping piece protrudes into the inclined guide hole along the direction perpendicular to the extending direction of the inclined guide hole;

the fixed plate is arranged on one side of the lower die assembly, which is away from the upper die;

a molding assembly, comprising:

the limiting piece is arranged on the fixed plate and is provided with a first chute and a second chute at intervals along the direction of the upper die pointing to the lower die;

the first forming part movably penetrates through the inclined guide hole and the limiting part and is provided with a limiting groove and a supporting part, the limiting groove is formed in the outer peripheral side of the first forming part and is in contact with the clamping part, the supporting part is formed in one end, adjacent to the limiting part, of the first forming part and is arranged in the first chute in a sliding manner, and the width of the supporting part is smaller than the interval between two opposite chute walls of the first chute; a kind of electronic device with high-pressure air-conditioning system

The second forming piece is movably arranged on the first forming piece in a penetrating mode, the limiting piece is provided with a protruding portion matched with the second chute, the protruding portion is arranged in the second chute in a sliding mode, and the second forming piece is matched with the first forming piece to form the oblique protruding column.

2. The molding die of claim 1, wherein the second molding member comprises:

the movable part is movably arranged on the first forming part and the limiting part in a penetrating way and is connected with the protruding part;

and the forming part is arranged at one end of the movable part, which is far away from the protruding part, and is used for forming the inner groove wall of the inclined mounting groove.

3. The molding die of claim 1, wherein,

the axis of the first molding piece and the axis of the second molding piece are positioned on the same central axis with the axis of the inclined guide hole.

4. The molding die of claim 1, wherein,

the limiting piece is further provided with a position avoiding groove and a communicating groove, the position avoiding groove is formed in one side, facing the upper die, of the limiting piece and is communicated with the first chute, the position avoiding groove is used for containing and avoiding part of the first forming piece, the communicating groove is respectively communicated with the first chute and the second chute, and the communicating groove is used for containing and avoiding part of the second forming piece.

5. The molding die of claim 1, wherein the lower die assembly further comprises:

the lower die plate is arranged opposite to the upper die;

the lower die core is arranged on one side, facing the upper die, of the lower die plate and is used for forming the forming cavity by cooperating with the forming assembly and the upper die in a surrounding manner;

the guide piece is arranged on one side, away from the upper die, of the lower die plate and is detachably connected with the lower die plate, the guide piece is provided with an inclined guide hole and a containing groove, and the containing groove is arranged along the direction perpendicular to the extending direction of the inclined guide hole and contains part of the clamping piece.

6. The molding die of claim 5, wherein said lower die further comprises:

the elastic piece is arranged between the lower die plate and the fixed plate and is used for driving the lower die plate to deviate from the fixed plate.

7. The molding die of claim 6, wherein,

the lower die plate is also provided with an accommodating groove, and the accommodating groove accommodates the elastic piece and is used for limiting the elastic piece.

8. The molding die of claim 1, wherein,

one end of the clamping piece, which faces the limiting groove, is spherical.

9. The molding die of claim 1, wherein the lower die further comprises a thimble assembly, the thimble assembly comprising:

the ejector plate is arranged on one side of the fixed plate, which is away from the lower die assembly;

the ejector pin is arranged on one side, facing the upper die, of the ejector pin plate and penetrates into the upper die assembly, and the ejector pin is used for propping against the workpiece to be separated from the forming cavity under the driving of the ejector pin plate.

10. The molding die of claim 9, wherein the molding die comprises a plurality of molding dies,

the number of the ejector pins is multiple, the multiple groups of ejector pins are arranged on the ejector pin plate at intervals, and the multiple groups of ejector pins are used for simultaneously pushing the workpiece to separate from the forming cavity.