CN216782505U

CN216782505U - Precision machining die capable of changing die cavity height

Info

Publication number: CN216782505U
Application number: CN202123300355.7U
Authority: CN
Inventors: 罗斯亮
Original assignee: Shenzhen Dongsheng Junhao Precision Die Co ltd
Current assignee: Shenzhen Dongsheng Junhao Precision Die Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-06-21
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a precision machining die capable of changing the height of a die cavity, which relates to the technical field of dies and comprises an upper die and a lower die, wherein a die cavity adjusting groove is formed in the middle of the lower side of the upper die, a die cavity piece is arranged in the die cavity adjusting groove in a clearance fit manner, racks are fixedly arranged on the left side and the right side of the die cavity piece, the racks are vertically arranged, two rotating shafts are arranged in the upper die in a rotating fit manner, the die cavity piece is arranged between the two rotating shafts, gears are fixedly arranged on the rotating shafts, the gears are correspondingly meshed with the outer sides of the racks one by one, worm gears are fixedly arranged on the rotating shafts, a screw rod is arranged in the upper die in a rotating fit manner, a left-handed thread is formed on the outer side of the left-side rotating shaft in a meshing manner, a right-handed thread is formed on the outer side of the right end of the screw rod, and the right-handed thread is meshed with the worm gear arranged on the right-side rotating shaft; the beneficial effects are that: the cavity piece can be adjusted to go up and down when the lead screw rotates, and the upper die plate does not need to be replaced when products with different thicknesses are produced, so that the damage of die scratching is avoided.

Description

Precision machining die capable of changing die cavity height

Technical Field

The utility model relates to the technical field of dies, in particular to a precision machining die with a changeable die cavity height.

Background

The die is various dies 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. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. The element has the name of "industrial mother".

Among the injection mold, the high unable regulation of die cavity, the cope match-plate pattern that the mould corresponds need be changed when making the product of different thickness, and is very inconvenient, changes inefficiency, and manpower and materials consume greatly, changes the easy scotch of on-the-way mould, leads to injection moulding's defective index to improve.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical scheme capable of solving the problems in order to overcome the defects.

The utility model provides a can change precision finishing mould of die cavity height, including last mould and lower mould, the middle part shaping of going up the mould downside has the die cavity adjustment tank, clearance fit installs die cavity spare in the die cavity adjustment tank, the equal fixed mounting in the left and right sides of die cavity spare has the rack, the vertical setting of rack, go up mould internal rotation fit and install two pivots, die cavity spare sets up between two pivots, fixed mounting has the gear in the pivot, the outside of gear lets in the die cavity adjustment tank setting, the outside at the rack is installed in the meshing of gear one-to-one, fixed mounting has the worm wheel in the pivot, go up mould internal rotation fit and install the lead screw, mutually perpendicular sets up between lead screw and the pivot, the outside shaping of lead screw left end has left-handed thread, left-handed thread meshing is installed on the worm wheel of left side pivot, the outside shaping of lead screw right-hand thread meshing is installed on the worm wheel of right side pivot.

As a further scheme of the utility model: a plurality of positioning rods are fixedly arranged on the upper side of the cavity piece, a plurality of through holes are formed in the cavity adjusting groove, the upper ends of the positioning rods are arranged in a one-to-one clearance fit insertion through holes,

as a further scheme of the utility model: the upper side fixed mounting of going up the mould has two square irons, and clearance fit installs the lifter plate between two square irons, the equal fixed mounting in the downside of lifter plate in the upper end of a plurality of locating lever.

As a further scheme of the utility model: the inside of square iron is carved and is made into the scale, and the scale is vertical to be arranged and is located the outside of lifter plate.

As a further scheme of the utility model: one end of the screw rod is arranged to be led out of the upper die, and a disc handle is fixedly arranged at one end of the screw rod led out of the upper die.

As a further scheme of the utility model: the upside fixed mounting of type chamber spare has the pouring head, and the upside of pouring head is and has the sprue gate, and it has the reposition of redundant personnel pipeline to mould a plurality of in the pouring head, communicates each other between reposition of redundant personnel pipeline and the sprue gate, and the upside shaping of type chamber spare has a plurality of runner, and the runner one-to-one communicates each other with reposition of redundant personnel pipeline.

As a further scheme of the utility model: a plurality of guide pillars are fixedly mounted on the lower side of the upper die, a plurality of guide sleeves are formed on the lower die, and the lower ends of the guide pillars are in one-to-one corresponding clearance fit and inserted into the guide sleeves.

As a further scheme of the utility model: the upper side fixed mounting of lower mould has the core, and the core setting is in the below of die cavity spare, and last shaping of lower mould has the annular groove of keeping away, and the annular groove of keeping away sets up in the outside of core, and the downside border clearance fit of die cavity spare inserts in the annular groove of keeping away.

Compared with the prior art, the utility model has the beneficial effects that: the lead screw can drive left pivot rotation through left-handed screw when rotating, and it is rotatory that right-handed screw drives the pivot on right side simultaneously for the direction of rotation of gear is opposite in two pivots, and rack and gear intermeshing realizes the elevating movement of die cavity spare in the die cavity adjustment tank, thereby realizes the altitude mixture control of die cavity, need not to change the cope match-plate pattern during the product of production different thickness, and the regulation efficiency is fast, avoids the die scuffing to damage, has reduced the probability of defective products.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Fig. 3 is an enlarged schematic view of fig. 1 at B.

Fig. 4 is an enlarged schematic view of fig. 1 at C.

Fig. 5 is a schematic top view of the spindle and lead screw of the present invention.

Shown in the figure: 1. an upper die; 2. a lower die; 3. a cavity adjusting groove; 4. a cavity piece; 5. a rack; 6. a rotating shaft; 7. a gear; 8. a worm gear; 9. a screw rod; 10. left-handed threads; 11. right-hand threads; 12. positioning a rod; 13. a through hole; 14. square iron; 15. a lifting plate; 16. a graduated scale; 17. a disc handle; 18. a casting head; 19. a pouring gate; 20. a diversion pipeline; 21. a gate; 22. a guide post; 23. a guide sleeve; 24. a core; 25. annular clearance groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a precision machining mold capable of changing the height of a mold cavity comprises an upper mold 1 and a lower mold 2, a mold cavity adjusting groove 3 is formed in the middle of the lower side of the upper mold 1, a mold cavity piece 4 is installed in the mold cavity adjusting groove 3 in a clearance fit manner, racks 5 are fixedly installed on the left side and the right side of the mold cavity piece 4, the racks 5 are vertically arranged, two rotating shafts 6 are installed in the upper mold 1 in a rotating fit manner, the mold cavity piece 4 is arranged between the two rotating shafts 6, gears 7 are fixedly installed on the rotating shafts 6, the outer side of each gear 7 is communicated with the mold cavity adjusting groove 3, the gears 7 are installed on the outer sides of the racks 5 in a one-to-one corresponding engagement manner, worm gears 8 are fixedly installed on the rotating shafts 6, a screw rod 9 is installed in the upper mold 1 in a rotating fit manner, the screw rod 9 and the rotating shafts 6 are vertically arranged, left-handed threads 10 are formed on the outer side of the left-handed threads 10 and are installed on the worm gears 8 of the left-handed rotating shafts 6 in a meshing manner, a right-handed thread 11 is formed on the outer side of the right end of the screw rod 9, and the right-handed thread 11 is meshed with the worm wheel 8 of the right rotating shaft 6;

the principle is as follows: the lead screw 9 can drive left pivot 6 rotatory through left-handed screw thread 10 when rotating, and right-handed screw thread 11 drives pivot 6 rotatory on right side simultaneously for gear 7's opposite direction of rotation on two pivots 6, rack 5 and gear 7 intermeshing realize the elevating movement of die cavity spare 4 in die cavity adjustment tank 3, thereby realize the altitude mixture control of die cavity, need not to change the cope match-plate pattern during the product of production different thickness, and regulation efficiency is fast, avoids the mould scotch to damage.

As a further scheme of the utility model: a plurality of positioning rods 12 are fixedly arranged on the upper side of the cavity piece 4, a plurality of through holes 13 are formed in the cavity adjusting groove 3, and the upper ends of the positioning rods 12 are inserted into the through holes 13 in a one-to-one corresponding clearance fit manner; the lifting adjustment of the cavity piece 4 in the cavity adjusting groove 3 is more stable.

As a further scheme of the utility model: two square irons 14 are fixedly installed on the upper side of the upper die 1, a lifting plate 15 is installed between the two square irons 14 in a clearance fit mode, and the upper ends of a plurality of positioning rods 12 are fixedly installed on the lower side of the lifting plate 15; so that the positioning rod 12 cannot be separated from the through hole 13 and the cavity piece 4 cannot fall out of the cavity adjusting groove 3.

As a further scheme of the utility model: a graduated scale 16 is carved on the inner side of the square iron 14, the graduated scale 16 is vertically arranged, and the graduated scale 16 is positioned on the outer side of the lifting plate 15; the height of the cavity piece 4 can be observed through the graduated scale 16, and products with different thicknesses can be conveniently produced.

As a further scheme of the utility model: one end of the screw rod 9 is arranged through the upper die 1, and one end of the screw rod 9, which is arranged through the upper die 1, is fixedly provided with a disc handle 17; the rotation of the screw rod 9 can be facilitated.

As a further scheme of the utility model: a pouring head 18 is fixedly installed on the upper side of the cavity piece 4, a pouring port 19 is formed on the upper side of the pouring head 18, a plurality of flow distribution pipelines 20 are formed in the pouring head 18, the flow distribution pipelines 20 are communicated with the pouring port 19, a plurality of pouring gates 21 are formed on the upper side of the cavity piece 4, and the pouring gates 21 are communicated with the flow distribution pipelines 20 in a one-to-one correspondence manner; an injection head of the injection molding machine is inserted into a sprue gate 19 for injection molding, and the rubber material is injected into a gap between the cavity piece 4 and the lower die 2 through a shunt pipeline 20 and a sprue gate 21, so that the injection molding operation cannot be influenced by the lifting of the cavity piece 4.

As a further scheme of the utility model: a plurality of guide posts 22 are fixedly installed on the lower side of the upper die 1, a plurality of guide sleeves 23 are formed on the lower die 2, and the lower ends of the guide posts 22 are inserted into the guide sleeves 23 in a one-to-one clearance fit manner; so that the matching between the upper die 1 and the lower die 2 is more stable.

As a further scheme of the utility model: a mold core 24 is fixedly installed on the upper side of the lower mold 2, the mold core 24 is arranged below the cavity piece 4, an annular clearance groove 25 is formed in the lower mold 2, the annular clearance groove 25 is arranged on the outer side of the mold core 24, and the lower side edge of the cavity piece 4 is inserted into the annular clearance groove 25 in a clearance fit mode; when the die is assembled after the cavity piece 4 is lifted and adjusted, the lower side edge of the cavity piece 4 can sink into the annular clearance groove 25, so that the die is suitable for production of products with different thicknesses, and the phenomenon of glue overflow cannot occur after the injection pressure of the injection molding machine is adjusted.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a can change precision finishing mould of die cavity height, includes mould and lower mould, its characterized in that: go up the middle part shaping of mould downside and have the die cavity adjustment tank, clearance fit installs die cavity spare in the die cavity adjustment tank, the equal fixed mounting in the left and right sides of die cavity spare has the rack, the vertical setting of rack, go up mould internal rotation fit and install two pivots, die cavity spare sets up between two pivots, fixed mounting has the gear in the pivot, the outside of gear lets in the die cavity adjustment tank setting, the outside at the rack is installed in the meshing of gear one-to-one, fixed mounting has the worm wheel in the pivot, it installs the lead screw to go up mould internal rotation fit, mutually perpendicular sets up between lead screw and the pivot, the outside shaping of lead screw left end has left-handed screw, left-handed screw meshing is installed on the worm wheel of left side pivot, the outside shaping of lead screw right-hand member has right-handed screw, right-handed screw meshing is installed on the worm wheel of right side pivot.

2. The precision machining mold capable of changing the height of the cavity according to claim 1, wherein: a plurality of positioning rods are fixedly mounted on the upper side of the cavity piece, a plurality of through holes are formed in the cavity adjusting groove in a molding mode, and the upper ends of the positioning rods are in one-to-one clearance fit with the insertion holes.

3. A precision-working mold capable of changing the height of a cavity according to claim 2, wherein: the upper side fixed mounting of going up the mould has two square irons, and clearance fit installs the lifter plate between two square irons, the equal fixed mounting in the downside of lifter plate in the upper end of a plurality of locating lever.

4. A precision-working mold capable of changing the height of a cavity according to claim 3, wherein: the inside of square iron is carved and is made into the scale, and the scale is vertical to be arranged and is located the outside of lifter plate.

5. The precision machining mold capable of changing the height of the cavity according to claim 1, wherein: one end of the screw rod is arranged to be led out of the upper die, and a disc handle is fixedly arranged at one end of the screw rod led out of the upper die.

6. The precision machining mold capable of changing the height of the cavity according to claim 1, wherein: the upside fixed mounting of type chamber spare has the pouring head, and the upside of pouring head is and has the sprue gate, and it has the reposition of redundant personnel pipeline to mould a plurality of in the pouring head, communicates each other between reposition of redundant personnel pipeline and the sprue gate, and the upside shaping of type chamber spare has a plurality of runner, and the runner one-to-one communicates each other with reposition of redundant personnel pipeline.

7. The precision machining mold capable of changing the height of the cavity according to claim 1, wherein: a plurality of guide pillars are fixedly mounted on the lower side of the upper die, a plurality of guide sleeves are formed on the lower die, and the lower ends of the guide pillars are in one-to-one corresponding clearance fit and inserted into the guide sleeves.

8. A precision machining mold capable of changing the height of a cavity according to claim 1, wherein: the upper side fixed mounting of lower mould has the core, and the core setting is in the below of die cavity spare, and last shaping of lower mould has the annular groove of keeping away, and the annular groove of keeping away sets up in the outside of core, and the downside border clearance fit of die cavity spare inserts in the annular groove of keeping away.