CN210705742U

CN210705742U - Die set

Info

Publication number: CN210705742U
Application number: CN201921005191.5U
Authority: CN
Inventors: 黄佰胜; 林可贵; 余志强
Original assignee: Shenzhen Nanhe Jianyi Mould Co ltd
Current assignee: Shenzhen Nanhe Jianyi Mould Co ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-06-09
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses a mold, relate to mould technical field, the mould includes the front mould, the back mould, a plurality of bores screw thread subassembly and a plurality of drive assembly, the front mould has a plurality of cavity, each one end of boring screw thread subassembly is all installed on the back mould, the other end stretches into respectively in each cavity and encloses respectively with each cavity and close the die cavity that forms and be used for the shaping product, the tip of boring screw thread subassembly that stretches into in the cavity is equipped with and is used for the first internal screw thread of machine-shaping on the product, drive assembly bores screw thread subassembly corotation or reversal with the drive with boring screw thread subassembly and being connected. Like this, through adopting the mould of above-mentioned structure, each bores the screw thread subassembly and stretches into respectively in each cavity and enclose respectively with each cavity and close the die cavity that forms and be used for the shaping product, and after the product was moulded plastics and is accomplished, the screw thread subassembly reversal backset is bored in the drive assembly drive to once only shaping goes out first internal thread on the product, has simplified processing technology, has reduced manufacturing cost, labour saving and time saving.

Description

Die set

Technical Field

The utility model relates to a mould technical field especially relates to a mould.

Background

In the existing market, when a product with an internal thread needs to be formed, a method is generally adopted, wherein a product without the internal thread is formed firstly, and then the product without the internal thread is placed on a lathe for secondary processing.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to solve the prior market, when a product with an internal thread is formed, the product without the internal thread is formed firstly, and then the internal thread is processed secondarily on a lathe, thereby increasing the technical problem of production cost.

The utility model discloses an as above technical scheme realizes:

the utility model provides a mold, bore screw thread subassembly and a plurality of drive assembly including front mould, back mould, a plurality of, the front mould has a plurality of cavity, each the one end of boring the screw thread subassembly all install in back mould is last, the other end stretches into respectively in each the cavity and with each the cavity encloses respectively to close the die cavity that forms and be used for the shaping product, bore stretching into of screw thread subassembly tip in the cavity is equipped with and is used for the first internal screw thread of machine-shaping on the product, drive assembly with bore the screw thread subassembly and connect with the drive bore screw thread subassembly corotation or reversal.

Furthermore, one side of the rear die, which faces the front die, is provided with a plurality of accommodating cavities, each accommodating cavity is internally provided with one of the drill thread assemblies, each drill thread assembly comprises a guide seat, a rotating piece and a shaft core member, the guide seats are fixed in the accommodating cavities, one end of each rotating piece is in threaded connection with the guide seat, the other end of each rotating piece is provided with a first external thread, the middle of each rotating piece is in transmission connection with the driving assembly, the front die is further provided with a convex column which is convexly arranged in the concave cavity, the shaft core member is arranged in the rotating pieces in a penetrating mode and extends to abut against the convex column, and the concave cavity, the convex column, the rotating pieces and the shaft core member are enclosed to form the cavity.

Furthermore, a second external thread is arranged on the outer side wall of one end, close to the guide seat, of the rotating piece, an inner hole penetrates through the guide seat along the central axis direction of the guide seat, and a second internal thread matched with the second external thread is arranged on the side wall of the inner hole; and/or the presence of a gas in the atmosphere,

the driving assembly comprises a power mechanism arranged on the rear die and a transmission mechanism arranged between the power mechanism and the thread drilling assembly, the power mechanism is a combination of an air cylinder or a hydraulic cylinder or a motor and a screw rod transmission pair, the transmission mechanism comprises a rack connected with the power mechanism and a gear assembly in transmission connection with the rack, and second external teeth meshed with the gear assembly are arranged in the middle of the rotating piece.

Further, the axle core component includes the axle core and detachably mounted in the shaping piece of axle core one end, the mould is still including establishing in the holding intracavity is in order to be used for fixing the axle core and preventing the axle core is along with revolving part pivoted locating component, the tip that is close to of axle core the shaping piece is worn to locate in the revolving part, keeping away from of axle core the tip of shaping piece is worn out outside the revolving part and with locating component connects, cavity, projection, revolving part and shaping piece enclose to close and form the die cavity.

Furthermore, the positioning assembly comprises a connecting rod and two clamping plates, two clamping grooves which are oppositely arranged are formed in the side wall of the shaft core, one end of each clamping plate is arranged on the rear die, the other end of each clamping plate is clamped in the corresponding clamping groove, the two clamping plates are abutted against the guide seat, every two containing cavities are communicated, and the two shaft cores in the two containing cavities which are mutually communicated are connected through the connecting rod.

Further, the mould still includes a plurality of install in the back mould just is located the limiting plate of each holding intracavity, the limiting plate is located the side of guide holder and butt in the guide holder is in order to be used for restricting the guide holder rotation.

Furthermore, one side of the limiting plate, which faces the guide seat, is provided with a convex tooth, and the outer side wall of the guide seat is provided with a first outer tooth matched with the convex tooth.

Furthermore, the mold further comprises a plurality of supporting seats which are arranged on the rear mold and located in the accommodating cavities, at least two supporting seats are rotatably sleeved outside each rotating piece, and one of the supporting seats and the clamping plate are respectively abutted to two axial ends of the guide seat; and/or the presence of a gas in the atmosphere,

the rear die comprises a first die plate group and a second die plate group, the second die plate group is arranged between the front die and the first die plate group, the first die plate group and the second die plate group are enclosed to form the accommodating cavity, and the limiting plate and the clamping plate are both arranged on one side of the second die plate group, which faces the first die plate group.

Furthermore, an oil groove for containing lubricating oil to reduce friction between the rotating part and the shaft core is arranged on the outer surface of the shaft core.

Further, the number of the drill thread assemblies is four, the number of the driving assemblies is two, and each driving assembly drives two drill thread assemblies to move simultaneously.

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

through the mould that adopts above-mentioned structure, each bores the screw thread subassembly and stretches into respectively in each cavity and enclose respectively with each cavity and close the die cavity that forms and be used for the shaping product, and after the product was moulded plastics and is accomplished, the drive assembly drive was bored screw thread subassembly and is reversed the backset to once only shaping goes out first internal thread on the product, has simplified processing technology, has reduced manufacturing cost, labour saving and time saving.

Drawings

Fig. 1 is a schematic structural diagram of a mold according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a mold according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a schematic structural diagram of a product provided in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of the rear mold according to the embodiment of the present invention after removing the drill thread assembly;

fig. 6 is an exploded schematic view of a rear mold according to an embodiment of the present invention;

FIG. 7 is an enlarged partial view of FIG. 6 at B;

FIG. 8 is a schematic structural view of the assembled drill thread assembly, support base, drive assembly and connecting rod;

FIG. 9 is an enlarged partial schematic view at C of FIG. 8;

FIG. 10 is an exploded view of FIG. 8;

fig. 11 is a schematic structural diagram of a rotating member according to an embodiment of the present invention;

fig. 12 is a schematic structural view of a shaft member according to an embodiment of the present invention;

FIG. 13 is a schematic view of the arrangement of the drill thread assembly, the drive assembly and the positioning assembly mounted on the rear mold;

fig. 14 is an enlarged partial view of fig. 13 at D.

In the figure:

10. a front mold; 11. a concave cavity; 12. a convex column; 20. a rear mold; 21. an accommodating cavity; 22. a first template group; 23. a second template set; 24. a guide rail; 25. a fixed block; 30. drilling a threaded component; 31. a guide seat; 311. an inner bore; 312. a second internal thread; 313. a first external tooth; 32. a rotating member; 321. a first external thread; 322. a second external thread; 323. a second external tooth; 33. a shaft member; 331. a shaft core; 332. forming a block; 333. an oil sump; 334. a card slot; 40. a drive assembly; 41. a power mechanism; 42. a transmission mechanism; 421. a rack; 422. a gear assembly; 423. a driving gear; 424. a driven gear; 425. an intermediate gear; 50. producing a product; 51. a cover body; 511. concave holes; 512. a first internal thread; 52. a boss; 60. a positioning assembly; 61. a connecting rod; 62. clamping a plate; 70. a limiting plate; 71. a convex tooth; 80. and (4) supporting the base.

Detailed Description

The present invention is further described with reference to the accompanying drawings and the detailed description, and it should be noted that the above-described embodiments or technical features may be arbitrarily combined to form a new embodiment without conflict.

As shown in fig. 1-14, the present invention discloses a mold, which comprises a front mold 10, a rear mold 20, a plurality of drilling screw assemblies 30, and a plurality of driving assemblies 40 installed on the rear mold 20, wherein the front mold 10 has a plurality of cavities 11, a plurality of receiving cavities 21 are disposed on one side of the rear mold 20 facing the front mold 10, a drilling screw assembly 30 is disposed in each receiving cavity 21, one end of each drilling screw assembly 30 is installed in the receiving cavity 21 of the rear mold 20, the other end of each drilling screw assembly 30 protrudes out of each receiving cavity 21 and extends into each cavity 11, so as to form a cavity for forming a product 50 with each cavity 11, a first external thread 321 for forming a first internal thread 512 on the product 50 is disposed on the end of the drilling screw assembly 30 that forwardly extends into the cavity 11, the driving assembly 40 is connected with the drilling screw assembly 30 to drive the drilling screw assembly 30 or reversely rotate, after the product 50 is injection-molded, the driving assembly 40 drives the drill thread assembly 30 to reversely rotate and retreat, so that the first internal thread 512 is formed on the product 50 at one time, the processing technology is simplified, the production cost is reduced, and time and labor are saved.

As shown in fig. 4, the embodiment of the present invention provides a mold for forming a product 50, which is a cap-shaped member having a first internal thread 512. In this embodiment, the product 50 includes a cover 51 having a concave hole 511 and a boss 52 protruding into the concave hole 511 in the cover 51, and a first internal thread 512 is provided on the inner side wall of the concave hole 511; of course, in a specific application, the mold provided by the embodiment of the present invention is not limited to this specific structure, and may be any component having the first internal thread 512, for example, the product 50 may not have the boss 52, but only include the cover 51 having the internal thread.

The number of the drill thread assemblies 30 in this embodiment is four, the number of the driving assemblies 40 is two, each driving assembly 40 drives two drill thread assemblies 30 to move simultaneously, and the mold can mold four products 50 with the first internal threads 512 at one time.

As shown in fig. 5-10, in this embodiment, the driving assembly 40 includes a power mechanism 41 and a transmission mechanism 42, the power mechanism 41 may be an air cylinder or a hydraulic cylinder or a combination of a motor and a screw transmission pair, the power mechanism 41 in this embodiment is preferably an air cylinder, the power mechanism 41 is installed at the top of the rear mold 20, the transmission mechanism 42 is disposed between the power mechanism 41 and the drill thread assembly 30, the transmission mechanism 42 includes a rack 421 and a gear assembly 422 drivingly connected to the rack 421, the gear assembly 422 is disposed in the accommodating cavity 21, one end of the rack 421 is disposed outside the rear mold 20, the other end of the rack 421 extends into the accommodating cavity 21 to be connected to the power mechanism 41, in order to prevent the rack 421 from being broken during operation, in this embodiment, a guide rail 24 is further disposed on the rack 421 along the length direction thereof, a fixing block 25 is disposed on a side wall of the mold, a sliding, the guide rail 24 is mounted in the slide groove.

The gear assembly 422 includes a driving gear 423 engaged with the rack 421, a driven gear 424 engaged with the middle of the drill screw assembly 30, and an intermediate gear 425 disposed between the driving gear 423 and the driven gear 424, wherein the number of the intermediate gears 425 is not determined, and each intermediate gear 425 is connected in sequence in a transmission manner, and the number of the intermediate gears 425 can be set by itself according to actual transmission requirements.

As shown in fig. 11, the drill screw assembly 30 includes a guide holder 31, a rotary member 32 and a shaft center member 33, the guide holder 31 is fixed in the receiving cavity 21, the shaft center member 33 is disposed in the receiving cavity 21, one end of the rotary member 32 is rotatably connected to the guide holder 31 through a screw, the other end of the rotary member 32 is provided with a first external thread 321, the middle of the rotary member 32 is in transmission connection with the driving assembly 40, specifically, the middle of the rotary member 32 is provided with a second external tooth 323 engaged with the gear assembly 422 to form an annular structure, and in order to prevent the second external tooth 323 from being disengaged from the gear assembly 422 when the rotary member 32 moves, the thickness of the second external tooth 323 is smaller than that of the driven gear 424. The front mold 10 further has a convex post 12 protruding into the cavity 11, a shaft center member 33 passing through the rotary member 32 and extending to abut against the convex post 12, the cavity 11, the convex post 12, the rotary member 32 and the shaft center member 33 enclose the cavity, and the shaft center member 33 has a function of supporting on the rotary member 32.

In the specific implementation process, when the front mold 10 and the rear mold 20 are closed, the axial center member 33 abuts against the convex column 12, after the injection molding is completed, the power mechanism 41 drives the rotating member 32 to rotate relative to the rear mold 20 through the transmission mechanism 42, the rotating member 32 is in threaded connection with the guide seat 31, and the guide seat 31 is fixed on the rear mold 20, so that the rotating member 32 moves relative to the rear mold 20 while rotating, a first internal thread 512 can be processed on the product 50 by virtue of the first external thread 321 on the rotating member 32, and then the mold is opened.

As shown in fig. 12, the shaft center member 33 includes a shaft core 331 and a forming block 332, the forming block 332 is detachably mounted at one end of the shaft core 331, the mold further includes a positioning component 60 disposed in the accommodating cavity 21 for fixing the shaft core 331 and preventing the shaft core 331 from rotating along with the rotating component 32, an end of the shaft core 331 close to the forming block 332 is disposed in the rotating component 32, an end of the shaft core 331 far from the forming block 332 penetrates out of the rotating component 32 and is connected with the positioning component 60, and the cavity 11, the protruding column 12, the rotating component 32 and the forming block 332 enclose to form a cavity.

As a preferred embodiment, the positioning assembly 60 includes a connecting rod 61 and two clamping plates 62, two clamping grooves 334 oppositely disposed are provided on a side wall of the shaft core 331, one end of each of the two clamping plates 62 is mounted on the rear mold 20, and the other end of each of the two clamping plates 62 is respectively clamped in the two clamping grooves 334 to prevent the guide seat 31 from shifting in the mold, and the two clamping plates 62 are respectively abutted against the guide seat 31, every two transversely disposed accommodating cavities 21 are communicated, the two shaft cores 331 in the two mutually communicated accommodating cavities 21 are connected through the connecting rod 61, and the connecting rod 61 is specifically connected with an end portion of each of the two shaft cores 331, which is far away from the clamping plate 62.

In a preferred embodiment, a spiral oil groove 333 for receiving lubricating oil to reduce friction between the shaft core 331 and the rotary member 32 is provided on an outer surface of the shaft core 331.

As shown in fig. 13-14, as a preferred embodiment, the mold further includes a plurality of limiting plates 70 installed on the rear mold 20 and disposed in each receiving cavity 21 for limiting the rotation of the guide seat 31, and the limiting plates 70 are located beside the guide seat 31 and abut against the guide seat 31.

Specifically, the side of the limit plate 70 facing the guide seat 31 is provided with a linear convex tooth 71, the outer side wall of the guide seat 31 is provided with a first outer tooth 313 having a ring shape and engaged with the convex tooth 71, and the convex tooth 71 and the first outer tooth 313 are engaged with each other, so that when the rotary member 32 rotates, the limit plate 70 can effectively prevent the guide seat 31 from rotating with the rotary member 32, thereby enabling the rotary power of the rotary member 32 to be converted into a linear motion.

Preferably, the outer side wall of one end of the rotating member 32 close to the guide seat 31 is provided with a second external thread 322, the guide seat 31 is an annular connecting member, the guide seat 31 is provided with an inner hole 311 along the central axis direction thereof, and the side wall of the inner hole 311 is provided with a second internal thread 312 matched with the second external thread 322.

The rear mold 20 includes a first mold plate group 22 and a second mold plate group 23, the first mold plate group 22 and the second mold plate group 23 are formed by combining a plurality of mold plates, the second mold plate group 23 is disposed between the front mold 10 and the first mold plate group 22, cavities are disposed on the first mold plate group 22 and the second mold plate group 23, the cavities on the first mold plate group 22 and the cavities on the second mold plate group 23 enclose to form the accommodating cavity 21, and the limiting plate 70 and the snap-gauge 62 are mounted on one side of the second mold plate group 23 facing the first mold plate group 22.

In order to better position the rotating member 32, as a preferred embodiment, the mold in this embodiment further includes a plurality of supporting seats 80 installed on the rear mold 20 and located in each accommodating cavity 21, at least two supporting seats 80 can be rotatably sleeved outside each rotating member 32, one of the supporting seats 80 and the clamping plate 62 respectively abuts against two axial ends of the guiding seat 31 to axially limit the guiding seat 31, and the rest of the supporting seats 80 sleeved outside the rotating member 32 have a function of supporting the rotating member 32.

Each support seat 80 is sleeved on the outer wall of each rotating member 32, and the rotating member 32 is rotatably connected to the support seat 80.

The utility model discloses the theory of operation of mould does: the injection molding machine carries out the compound die earlier, after the molten gel is moulded to the injection molding machine in the die cavity, power unit 41 drives rotating member 32 through rack 421 and gear assembly 422 and rotates, because one end and the guide holder 31 of rotating member 32 are threaded connection, so rotating member 32 also makes the removal for back mould 20 when the pivoted, and simultaneously when removing, first internal thread 512 is processed on product 50 to first external screw thread 321 on the rotating member 32 other end, after rotating member 32 breaks away from product 50, the product 50 can be taken out to the die sinking, be final product 50. The driving assembly 40 on the mold can simultaneously drive the two rotating members 32 to rotate, and the number of the driving assemblies 40 is two, so that the mold can mold four products 50 at one time.

In summary, by using the mold with the above structure, each drill thread assembly 30 extends into each cavity 11 and encloses with each cavity 11 to form a cavity for molding the product 50, and after the product 50 is injection molded, the driving assembly 40 drives the drill thread assembly 30 to reversely rotate and retreat, so that the first internal thread 512 is formed on the product 50 at one time, thereby simplifying the processing process, reducing the production cost, and saving time and labor.

The following embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A mold, characterized in that: the front die is provided with a plurality of cavities, one end of each drilling thread component is mounted on the rear die, the other end of each drilling thread component extends into each cavity and surrounds the cavity with each cavity to form a cavity for forming a product, first external threads for machining and forming first internal threads on the product are arranged at the end, extending into the cavity, of each drilling thread component, and the driving component is connected with the drilling thread component to drive the drilling thread component to rotate forwards or reversely.

2. The mold of claim 1, wherein: the rear die is provided with a plurality of accommodating cavities facing one side of the front die, each accommodating cavity is internally provided with one of the drill thread assemblies, each drill thread assembly comprises a guide seat, a rotating piece and a shaft core member, the guide seats are fixed in the accommodating cavities, one end of the rotating piece is in threaded connection with the guide seats, the other end of the rotating piece is provided with a first external thread, the middle of the rotating piece is in transmission connection with the driving assembly, the front die is further provided with a convex column which is convexly arranged in the concave cavity, the shaft core member is arranged in the rotating piece in a penetrating mode and extends to abut against the convex column, and the concave cavity, the convex column, the rotating piece and the shaft core member are enclosed to form the cavity.

3. The mold of claim 2, wherein: the outer side wall of one end of the rotating piece, which is close to the guide seat, is provided with a second external thread, the guide seat is provided with an inner hole in a penetrating manner along the central axis direction of the guide seat, and the side wall of the inner hole is provided with a second internal thread matched with the second external thread; and/or the presence of a gas in the atmosphere,

4. A mould according to claim 2 or 3, characterized in that: the axle core component includes the axle core and demountable installation in the shaping piece of axle core one end, the mould is still including establishing the holding intracavity is in order to be used for fixing the axle core prevents the axle core is along with swivel pivoted locating component, being close to of axle core the tip of shaping piece is worn to locate in the swivel, keeping away from of axle core the tip of shaping piece is worn out the swivel is outer and with locating component connects, cavity, projection, swivel and shaping piece enclose to close and form the die cavity.

5. The mold of claim 4, wherein: the positioning assembly comprises a connecting rod and two clamping plates, two clamping grooves which are oppositely arranged are formed in the side wall of the shaft core, one end of each clamping plate is arranged on the rear die, the other end of each clamping plate is clamped in the corresponding clamping groove, the two clamping plates are abutted against the guide seat, every two containing cavities are communicated, and the two shaft cores in the two containing cavities which are mutually communicated are connected through the connecting rod.

6. The mold of claim 5, wherein: the die further comprises a plurality of limiting plates which are arranged on the rear die and located in the containing cavities, and the limiting plates are located beside the guide seat and abut against the guide seat to limit the rotation of the guide seat.

7. The mold of claim 6, wherein: one side of the limiting plate, which faces the guide seat, is provided with convex teeth, and the outer side wall of the guide seat is provided with first outer teeth matched with the convex teeth.

8. The mold of claim 7, wherein: the mould also comprises a plurality of supporting seats which are arranged on the rear mould and positioned in the containing cavities, at least two supporting seats are rotatably sleeved outside each rotating part, and one of the supporting seats and the clamping plate are respectively abutted against two axial ends of the guide seat; and/or the presence of a gas in the atmosphere,

9. The mold of claim 4, wherein: and an oil groove for containing lubricating oil to reduce friction between the rotating part and the shaft core is arranged on the outer surface of the shaft core.

10. A mold according to any one of claims 1 to 3, wherein: the number of the drill thread assemblies is four, the number of the driving assemblies is two, and each driving assembly drives the two drill thread assemblies to move simultaneously.