CN217070704U

CN217070704U - Pin ejecting and extruding die mechanism

Info

Publication number: CN217070704U
Application number: CN202220676357.1U
Authority: CN
Inventors: 金焱波; 金露波
Original assignee: Ningbo Jinda Mould Co ltd
Current assignee: Ningbo Jinda Mould Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-07-29
Anticipated expiration: 2032-03-24

Abstract

The utility model discloses a pin top extrusion die mechanism, including installing the pin mechanism in the moulded die core, pin mechanism includes the vertical drive arrangement who is used for extrusion molding end recess's shaping round pin, swing joint extruded article and drive extruded article on the shaping round pin, vertical drive arrangement's vertical drive end and extruded article fixed connection, and the shaping round pin is link up has the spout that supplies the extruded article to slide and connect. The utility model discloses utilize the plasticity of product before the cooling shaping, extrude it through pin mechanism, extrude the discharge with the bubble in the raw materials, improved product quality.

Description

Pin ejecting and extruding die mechanism

Technical Field

The utility model relates to a forming die technical field, in particular to crowded mould mechanism in pin top.

Background

The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. Die casting is a method in which a liquid or semi-liquid metal is filled into a die-casting mold cavity at a high speed under the action of high pressure, and is rapidly solidified under pressure to obtain a casting. The die casting mold used is called a die casting mold.

A product as shown in fig. 1, which comprises a main body 1, wherein a side groove 2 is formed in the side wall of the main body 1, the side groove 2 can be formed by extrusion and subjected to core pulling and demolding through a side core pulling mechanism, and at least one bottom groove 3 is formed in the bottom surface of the main body 1.

When the existing die-casting die is used for producing the product, molten raw materials are injected between a forming die core and a forming die cavity, and after the raw materials are cooled and formed, core pulling and demoulding can be carried out to obtain the product. However, when the molding core for molding the bottom groove is too high, the raw material at the top of the molding pillar may have partial shortage or bubbles, so that the bottom groove is prone to have the defects of shrinkage cavity, shrinkage porosity and the like, resulting in poor product quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the not enough and a pin top extrusion die mechanism that designs of above-mentioned technique, utilize the plasticity of cooling off the preceding product of shaping, extrude it through pin mechanism, extrude the discharge with the bubble in the raw materials, improved product quality.

In order to solve the technical problem, the technical scheme of the utility model is that: a pin top extrusion die mechanism comprises a pin mechanism arranged in a forming die core, wherein the pin mechanism comprises a forming pin for extruding and forming a bottom groove, an extrusion piece movably connected to the forming pin and a vertical driving device for driving the extrusion piece, the vertical driving end of the vertical driving device is fixedly connected with the extrusion piece, and a sliding groove for the sliding connection of the extrusion piece penetrates through the forming pin.

Preferably, the lower die plate further comprises a lower die plate, a lower die groove is formed in the lower die plate, a movable hole is formed in the lower die groove in a penetrating mode, and a vertical driving end of the vertical driving device is connected in the movable hole in a sliding mode.

Preferably, the lower die groove is detachably connected with a positioning mechanism, the positioning mechanism comprises a positioning block, and a guide groove for the extrusion part to be connected in a sliding manner is arranged through the positioning block.

Preferably, the bottom of the forming pin is provided with a support, and the bottom surface of the support is abutted to the top surface of the positioning block.

Preferably, the inner groove wall of the bottom of the lower die cavity is provided with a mounting groove for mounting the positioning block, and the length of the mounting groove is greater than that of the positioning block.

Preferably, the positioning mechanism further comprises a supporting column and a connecting block, a positioning hole for the supporting column to be inserted is formed in the inner groove wall of the mounting groove in a penetrating mode, one end, inserted into the mounting groove, of the supporting column is detachably connected with the positioning block, and the other end, exposed out of the positioning hole, of the supporting column is detachably connected with the connecting block.

Preferably, the end of the extrusion exposed from the forming pin is formed with a curved surface.

Preferably, the side core pulling mechanism comprises a side core pulling seat detachably connected to the lower template, a side core pulling block movably connected to the side core pulling seat, and a transverse driving device for driving the side core pulling block.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses utilize the plasticity of product before the cooling shaping, extrude through the interior cell wall of bottom groove on the pin mechanism to the body bottom surface, any kind of drive arrangement of pneumatic cylinder or electric jar can be chooseed for use to vertical drive arrangement, vertical drive arrangement drive extrusion spare upwards slides in the spout, make the curved surface inconsistent with the interior cell wall of the bottom groove of not cooling shaping, extrude the bubble in the raw materials of bottom groove department, avoid the bottom groove because of the part lacks material or the bubble leads to appearing the shrinkage cavity, defects such as shrinkage porosity, product quality has been improved.

Drawings

FIG. 1 is a schematic structural view of a product;

FIG. 2 is a first schematic structural diagram of an embodiment;

FIG. 3 is a second schematic structural view of the embodiment;

fig. 4 is a sectional view of the embodiment.

In the figure: 1. a main body; 2. a side groove; 3. a bottom recess; 4. a pin mechanism; 41. a forming pin; 42. an extrusion; 43. a vertical drive device; 5. a positioning mechanism; 51. positioning blocks; 52. a support pillar; 53. connecting blocks; 6. a side core-pulling mechanism; 61. a side drawing seat; 62. side core block drawing; 63. a lateral drive device; 7. a chute; 8. a lower template; 9. a lower die cavity; 10. a movable hole; 11. a guide groove; 12. a support member; 13. mounting grooves; 14. positioning holes; 15. a curved surface; 16. a contact switch; 17. a trip bar; 18. fixing grooves; 19. a guide plate; 20. and a side module.

Detailed Description

The invention is further described by the following embodiments in conjunction with the accompanying drawings.

Referring to fig. 1, 2, 3 and 4, a pin ejecting and extruding mold mechanism includes a lower mold plate 8, the lower mold plate 8 is provided with a lower mold groove 9 for installing a molding mold core, so as to be conveniently matched with a molding mold cavity to extrude and mold a molten raw material into a top surface and a bottom surface of a main body 1.

The lower die cavity 9 is detachably connected with a pin mechanism 4, and the pin mechanism 4 comprises a forming pin 41, an extrusion piece 42 and a vertical driving device 43. The forming pin 41 is vertically arranged on the bottom inner groove wall of the lower die groove 9, the forming pin 41 is used for extruding the bottom groove 3, the sliding groove 7 for the extrusion piece 42 to slide and connect is arranged in the forming pin 41 in a penetrating mode, the extrusion piece 42 is in a columnar shape, and the end portion, exposed out of the forming pin 41, of the extrusion piece 42 is provided with the curved surface 15.

The vertical driving device 43 can be a hydraulic cylinder or an air cylinder or an electric cylinder, the vertical driving end of the vertical driving device 43 is fixedly connected with the extrusion part 42, and the lower die groove 9 is penetrated with a movable hole 10 for the sliding connection of the vertical driving end of the vertical driving device 43. When this mechanism is used for the shaping product, main part 1 before the cooling possesses certain plasticity, upwards slides in spout 7 through the drive vertical drive device 43 drive extruded article 42 for curved surface 15 inserts not cooling fashioned end recess 3 in, is used for extruding end recess 3 and extrudes the bubble in the raw materials, avoids end recess 3 to lead to appearing defects such as shrinkage cavity, shrinkage porosity because of part lacks material or bubble, has improved product quality.

The contact switch 16 electrically connected with the vertical driving device 43 is arranged on one side of the vertical driving device 43, the contact switch 16 can be a travel switch, a travel bar 17 is fixedly connected to the vertical output end of the vertical driving device 43, the travel bar 17 is L-shaped, and when the end of the travel bar 17 is inconsistent with the contact switch 16, the contact switch 16 triggers and stops the vertical driving device 43 to continuously drive the extrusion piece 42 upwards so as to limit the sliding movement of the extrusion piece 42.

The lower mold cavity 9 is detachably connected with a positioning mechanism 5, and the positioning mechanism 5 comprises a positioning block 51, a support column 52 and a connecting piece. The bottom inner wall of the lower mold cavity 9 is provided with a mounting groove 13 for mounting the positioning block 51, and the length of the mounting groove 13 is greater than that of the positioning block 51, so that the positioning block 51 can be conveniently put into or taken out of the mounting groove 13. Positioning block 51 has been link up there is guide way 11, when installation positioning block 51, slide guide way 11 on positioning block 51 to activity hole 10 department, upwards insert activity hole 10 with vertical drive arrangement 43's vertical drive end, make extruded article 42 pass through guide way 11, guide way 11 and spout 7 cooperation are strengthened the direction of sliding to extruded article 42, the bottom of shaping round pin 41 is provided with support piece 12, one side cover through being close to support piece 12 with spout 7 is located extruded article 42, the bottom surface of support piece 12 is inconsistent with positioning block 51's top surface, accomplish the installation of pin mechanism 4, support piece 12 is the ring-type, play better supporting role to the locating pin, the resistant extrudability of locating pin tip has been improved. A positioning hole 14 for inserting the supporting column 52 is formed in the inner wall of the mounting groove 13, the supporting column 52 can be inserted into the positioning hole 14, one end of the supporting column 52 inserted into the mounting groove 13 is detachably connected with the positioning block 51, and the other end of the supporting column 52 exposed out of the positioning hole 14 is detachably connected with the connecting block 53, so that the positioning and the mounting of the pin mechanism 4 are completed.

The lower template 8 is further detachably connected with a side core-pulling mechanism 6, and the side core-pulling mechanism 6 comprises a side core-pulling seat 61 detachably connected to the lower template 8, a side core-pulling block 62 movably connected to the side core-pulling seat 61, and a transverse driving device 63 driving the side core-pulling block 62.

The fixed slot 18 has been seted up to the lateral wall of lower bolster 8, side seat 61 both sides are all provided with deflector 19, two deflector 19 are fixed connection respectively in the inner tank wall department of fixed slot 18, side core block 62 slides and connects the department between the relative lateral wall of two deflector 19, any kind of drive arrangement of hydraulic cylinder or electric cylinder can be selected to horizontal drive arrangement 63, horizontal drive end and the side core block 62 fixed connection of horizontal drive arrangement 63, the tip that inserts lower die cavity 9 of side core block 62 is provided with the side form piece 20 that is used for extrusion side recess 2, side form piece 20 extrudes main part 1 with shaping round pin 41 cooperation.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. The utility model provides a pin top extrusion die mechanism which characterized by: the device comprises a pin mechanism (4) arranged in a forming die core, wherein the pin mechanism (4) comprises a forming pin (41) used for extruding and forming a bottom groove (3), an extrusion piece (42) movably connected to the forming pin (41) and a vertical driving device (43) driving the extrusion piece (42), the vertical driving end of the vertical driving device (43) is fixedly connected with the extrusion piece (42), and a sliding groove (7) for the sliding connection of the extrusion piece (42) penetrates through the forming pin (41).

2. The pin ejection die mechanism of claim 1, wherein: the die is characterized by further comprising a lower template (8), a lower die cavity (9) is formed in the groove of the lower template (8), a movable hole (10) is formed in the lower die cavity (9) in a penetrating mode, and a vertical driving end of the vertical driving device (43) is connected with the movable hole (10) in a sliding mode.

3. The pin ejection die mechanism of claim 2, wherein: lower chase (9) is dismantled and assembled to be connected with positioning mechanism (5), positioning mechanism (5) are including locating piece (51), the confession is run through in locating piece (51) extruded piece (42) guide way (11) of connection that slides.

4. The pin ejection die mechanism of claim 3, wherein: the bottom of the forming pin (41) is provided with a support piece (12), and the bottom surface of the support piece (12) is abutted to the top surface of the positioning block (51).

5. The pin ejection die mechanism of claim 3, wherein: and an installation groove (13) for installing the positioning block (51) is formed in the inner groove wall of the bottom of the lower die cavity (9), and the length of the installation groove (13) is greater than that of the positioning block (51).

6. The pin ejection die mechanism of claim 5, wherein: positioning mechanism (5) still include support column (52) and connecting block (53), the interior cell wall of mounting groove (13) link up has the confession location hole (14) that support column (52) were pegged graft, support column (52) insert the one end of mounting groove (13) with locating piece (51) removable connection, support column (52) expose the other end of location hole (14) with connecting block (53) removable connection.

7. The pin ejection die mechanism of claim 1, wherein: the end of the pressing member (42) exposed out of the forming pin (41) is formed with a curved surface (15).

8. The pin ejection die mechanism of claim 2, wherein: the side core-pulling mechanism (6) is used for extruding and forming the side groove (2), the side core-pulling mechanism (6) comprises a side core-pulling seat (61) which is detachably connected onto the lower template (8), a side core-pulling block (62) which is movably connected into the side core-pulling seat (61), and a transverse driving device (63) for driving the side core-pulling block (62).