CN216176081U

CN216176081U - Improved structure of anti-jumping waste die

Info

Publication number: CN216176081U
Application number: CN202122724406.2U
Authority: CN
Inventors: 戴新丰
Original assignee: Wuxi Huaguang Car Part Co ltd
Current assignee: Wuxi Huaguang Car Part Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-04-05
Anticipated expiration: 2031-11-08

Abstract

The utility model discloses an improved structure of a scrap jumping prevention die, which particularly relates to the technical field of die manufacturing, and comprises a female die, wherein a die male die component is movably connected inside the female die, the die male die component comprises a movable male die and a fixed male die, the female die comprises a bottom die, the top end of the bottom die is fixedly connected with a top die, an inclined groove is formed in the middle of the inner side of the top die, a circular ring is fixedly connected to the top of the inner side of the top die, the movable male die comprises a movable shell, a plurality of ejection pin rods are arranged inside the bottom end of the movable shell, the top ends of the ejection pin rods are fixedly connected with connecting springs, the top ends of the connecting springs are fixedly connected with knockout pins, and the top ends of the knockout pins are fixedly connected with a control ring disc. The situation that the waste materials move upwards is avoided, the product quality is improved, and the service life of the die is ensured.

Description

Improved structure of anti-jumping waste die

Technical Field

The utility model relates to the technical field of die manufacturing, in particular to an improved structure of a scrap-jumping-preventing die.

Background

The die is used for obtaining a required product by means of injection molding, blow molding, extrusion, die casting, forging and pressing, and the like, the die is required to be provided with a die holder, a die carrier, a die core and the like besides the die, the die holder, the die carrier, the die core and the like are generally made into universal types so as to improve the applicability and reduce the cost, and after materials are sheared and separated in the actual production process, the materials retained in the female die are taken out along with the rising of the male die and then fall on the surface of the female die, and the phenomenon is that waste materials move upwards.

The condition that the existing die waste moves upwards is basically because the adsorption force between the waste and the male die is greater than the sum of the friction force between the waste and the female die and the gravity of the waste, personal accidents easily occur due to carelessness of operators, and serious quality problems such as product scrapping and die damage can occur.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides an improved structure of a scrap-jumping-preventing die, and the technical problems to be solved by the utility model are as follows: the situation that the waste of the existing die moves upwards is basically because the adsorption force between the waste and the male die is greater than the sum of the friction force between the waste and the female die and the gravity of the waste, personal accidents are easily caused by carelessness of operators, products can be scrapped, and the die is damaged.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an anti-bounce waste material mould improves structure, includes the die, the inside swing joint of die has mould terrace die subassembly, mould terrace die subassembly includes movable terrace die and fixed terrace die, the die includes the die block, the top fixedly connected with top mould of die block, oblique slot has been seted up at the inboard middle part of top mould, the inboard top fixedly connected with ring of top mould, the activity terrace die includes movable housing, the inside of activity casing bottom is provided with a plurality of ejecting pin levers, the air flue has been seted up to the inside at activity casing center, the top of air flue is provided with carries out fixed connection's the hole of aerifing with movable housing, fixed terrace die includes fixed casing.

In a preferred embodiment, the ring is 2mm to 3mm from the top end of the top die, the ring has a thickness of 0.01mm, and through the use of the ring, when the die punch assembly is pressed into the top die, the scrap is pressed therein, the friction force is increased, and the scrap can be prevented from moving upwards.

In a preferred embodiment, the inclined groove is machined from the center to the outer side direction and has a depth of 0.005mm-0.1mm, and through the use of the inclined groove, the blanking scraps form small protrusions corresponding to the inclined groove at the initial blanking stage, and as the die punch assembly is further pressed in, the protrusions are compressed by the side surface of the top die, and the friction force is increased, thereby preventing the scraps from moving upwards.

In a preferred embodiment, a plurality of connecting springs are fixedly connected to the top ends of the ejection pin rods, knockout pins are fixedly connected to the top portions of the connecting springs, control ring discs are fixedly connected to the top ends of the knockout pins, the ejection pin rods are used to facilitate ejecting waste adsorbed at the bottom end of the movable shell to fall into the concave die, and the situation that the waste moves upwards cannot occur.

In a preferred embodiment, a supporting spring is movably sleeved at the top of the knockout pin, the top end of the supporting spring is connected with the bottom end of the control ring disc, the bottom end of the supporting spring is connected with the top end of the movable shell, and the supporting spring is used for facilitating the resetting of the inflation hole after the bottom end of the ejection pin rod moves so as to ensure the subsequent ejection work.

In a preferred embodiment, the bottom end of the fixed shell is fixedly connected with an annular reinforcing rib, and the use of the annular reinforcing rib is beneficial to reducing the contact area between the fixed shell and the waste material, so that the adsorption force of the fixed shell to the waste material is reduced, and the waste material is ensured to be easily separated.

In a preferred embodiment, the bottom end of the fixed shell is fixedly connected with a conical protrusion, and the contact area between the fixed shell and the waste material is reduced by using the conical protrusion, so that the adsorption force of the fixed shell to the waste material is reduced, and the waste material is ensured to be easily separated.

In a preferred embodiment, the bottom of the fixed shell is provided with a plurality of circular truncated cone pits, and the circular truncated cone pits are formed in the bottom of the fixed shell, so that the contact area between the fixed shell and the waste material is favorably reduced, the adsorption force of the fixed shell to the waste material is reduced, and the waste material is guaranteed to be easily separated.

In a preferred embodiment, the bottom of the inner side of the bottom die is processed into a smooth surface, and the situation that the waste material moves upwards due to the fact that the waste material collides with the lower part of the cutting edge of the female die to generate burr blockage can be avoided by processing the bottom of the inner side of the bottom die into the smooth surface.

In a preferred embodiment, the inner side of the top die is processed into a rough surface, and the possibility that the scraps may move upwards is reduced by increasing the friction force by processing the inner side of the top die into the rough surface.

The utility model has the technical effects and advantages that:

according to the utility model, through utilizing the bottom die, the top die, the circular ring and the inclined groove, the friction force in the waste material moving-up process can be increased, the waste material is prevented from moving upwards, through connecting high-pressure air in the inflation hole, and arranging the ejection pin rod in the movable shell, the waste material adsorbed at the bottom end of the movable shell can be actively separated, the waste material moving-up condition can not be generated, through fixedly connecting the fixed shell or the annular reinforcing rib at the bottom end of the fixed shell, and arranging the circular truncated cone pit in the bottom end of the fixed shell, the contact area between the fixed shell and the waste material is favorably reduced, the adsorption force is reduced, the waste material moving-up is avoided, the product quality is favorably improved, and the service life of the die is ensured.

Drawings

FIG. 1 is a schematic view of a connecting structure of a movable male die and a female die of the utility model.

Fig. 2 is a schematic sectional structure view of the movable male die of the utility model.

FIG. 3 is a schematic sectional view of the female mold of the present invention.

FIG. 4 is a schematic view of the connection structure of the fixed male die and the female die of the present invention.

Fig. 5 is a schematic view of a connection structure of the stationary housing and the annular reinforcing rib according to the present invention.

FIG. 6 is a schematic view of a connection structure of the stationary housing and the conical projection according to the present invention.

Fig. 7 is a schematic diagram of a position structure of a circular truncated cone pit according to the present invention.

The reference signs are: 1. a movable male die; 11. a knockout pin; 12. a control ring disc; 13. an inflation hole; 14. A support spring; 15. a connecting spring; 16. ejecting the pin rod; 17. an airway; 18. a movable housing; 2. a female die; 21. bottom die; 22. a circular ring; 23. an inclined groove; 24. carrying out top die; 3. fixing the male die; 31. a stationary housing; 32. an annular reinforcing rib; 33. a conical projection; 34. a circular truncated cone pit.

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 the attached drawing 3 in the specification, the improved structure of the scrap jumping prevention die of the embodiment comprises a female die 2, wherein the female die 2 comprises a bottom die 21, the bottom of the inner side of the bottom die 21 is machined into a smooth surface, so that the scrap can be prevented from colliding with the lower part of the cutting edge of the female die to cause burr blockage, the scrap can move upwards, the top end of the bottom die 21 is fixedly connected with a top die 24, the inner side of the top die 24 is machined into a rough surface, the possibility that the scrap moves upwards can be reduced by increasing friction force through machining the inner side of the top die 24 into a rough surface, the middle part of the inner side of the top die 24 is provided with an inclined groove 23, the top part of the inner side of the top die 24 is fixedly connected with a ring 22, the ring 22 is 2mm-3mm away from the top end of the top die 24, the thickness of the ring 22 is 0.01mm, and when a male die assembly is pressed into the top die 24 through the use of the ring 22, the scraps are extruded, the friction force is increased, the scraps can be prevented from moving upwards, the inclined groove 23 is processed from the center to the outer side direction, the depth of the inclined groove 23 is 0.005mm-0.1mm, through the use of the inclined groove 23, the blanking scraps can form small protrusions corresponding to the inclined groove 23 in the initial blanking stage, the protrusions are compressed by the side surface of the top die 24 along with the further pressing of the die male die assembly, the friction force is increased, and the scraps can be prevented from moving upwards.

The implementation scenario is specifically as follows:

when the utility model is used, the die punch assembly is used for punching into the female die 2, when the die punch assembly is pulled out, the bottom die 21 with smooth inner side can be used for avoiding the waste material from colliding with the lower part of the cutting edge of the female die to generate burr blockage, the waste material is ensured to fall into the female die 2, the friction force on the inner side of the top die 24 can be increased through the top die 24 with rough inner wall, the waste material is prevented from moving upwards, the punched waste material can form a bulge matched with the inclined groove 23 at the initial punching stage by using the inclined groove 23 processed on the middle part of the inner side of the top die 24, the bulge part can be compressed by the side surface of the top die 24 along with the further pressing of the die punch assembly, the friction force is increased, the waste material is prevented from moving upwards, when the waste material is extruded at the same time, the friction force is increased through the circular ring 22 fixed on the inner side of the top die 24, the upward moving process of the waste material can be blocked, in the processing process of the female die 2, the cutting edge of the female die 2 needs to be subjected to micro chamfering, the profile shape is changed, the blanking gap is reduced, the depth of the female die can be reduced as much as possible on the premise of ensuring the strength, and the material leaking part at the lower part of the female die 2 is kept smooth in the using process of the female die 2.

Referring to the attached

drawings

1 and 2 of the specification, the improved structure of the scrap jumping prevention die of the embodiment comprises a movable male die 1, wherein the movable male die 1 comprises a movable shell 18, a plurality of ejection pin rods 16 are arranged inside the bottom end of the movable shell 18, an air passage 17 is formed inside the center of the movable shell 18, an inflation hole 13 fixedly connected with the movable shell 18 is formed in the top end of the air passage 17, connecting springs 15 are fixedly connected to the top ends of the ejection pin rods 16, knockout pins 11 are fixedly connected to the top ends of the connecting springs 15, a control ring disc 12 is fixedly connected to the top ends of the knockout pins 11, the use of the ejection pin rods 16 is favorable for enabling scraps adsorbed at the bottom end of the movable shell 18 to fall into the female die 2, the condition that the scraps move upwards is avoided, supporting springs 14 are movably sleeved on the top ends of the knockout pins 11, and the top ends of the supporting springs 14 are connected with the bottom end of the control ring disc 12, the bottom end of the supporting spring 14 is connected with the top end of the movable shell 18, and the supporting spring 14 is used for facilitating the resetting of the inflating hole 13 after the bottom end of the ejection pin rod 16 moves so as to ensure the subsequent ejection work.

The implementation scenario is specifically as follows:

when the punching die is used, the inflation holes 13 are connected with high-pressure air, after punching is finished, the high-pressure air blows off waste materials, so that the waste materials are separated from the working range of the die, the waste materials can be prevented from moving upwards, during punching, the ejection pin rods 16 are pressed into the movable shell 18, the supporting springs 14 sleeved on the tops of the knockout pins 11 are subjected to force accumulation by pressing the control ring disc 12 on the tops, the knockout pins 11 are simultaneously pushed to move towards the bottoms, the knockout pins 11 move towards the bottoms to drive the connecting springs 15 to move towards the bottoms, the ejection pin rods 16 extend out of the interior of the movable shell 18, the waste materials adsorbed at the bottom end of the movable shell 18 are ejected into the interior of the female die 2, and the situation that the waste materials move upwards is avoided.

Referring to the attached drawings 4-7 in the specification, the improved structure of the anti-jumping scrap die in the embodiment includes a fixed male die 3, the fixed male die 3 includes a fixed shell 31, the bottom end of the fixed shell 31 is fixedly connected with an annular reinforcing rib 32 or a conical protrusion 33, the bottom of the fixed shell 31 is provided with a plurality of circular truncated cone pits 34, and the use of the annular reinforcing rib 32, the conical protrusion 33 and the circular truncated cone pits 34 is beneficial to reducing the contact area between the fixed shell 31 and scrap, so that the adsorption force of the fixed shell 31 to scrap is reduced, and the scrap is guaranteed to be easily separated.

The implementation scenario is specifically as follows:

when the material is very thin, because of reasons such as the adhesion of oil, magnetism, vacuum, adsorb in the bottom of fixed casing 31 very easily, and through at the bottom fixed connection annular strengthening rib 32 or the circular cone arch 33 of fixed casing 31, can reduce the area of contact of fixed casing 31 and waste material through increasing the arch, thereby reduce the absorption of fixed casing 31 to the waste material, in addition can reduce the area of contact of fixed casing 31 and waste material through seting up round platform pit 34, prevent the waste material from shifting up, in the practical application process, can set the bottom of fixed casing 31 into the scarf, during the blanking, blade one end contacts the material earlier, cut off the material along with fixed casing 31 deepens into die 2 inside, the waste material is difficult for forming the vacuum with fixed casing 31 bottom, can effectively prevent the waste material from shifting up.

Referring to the attached fig. 1 and 4 of the specification, the improved structure of the scrap jumping prevention die of the embodiment comprises a female die 2, a die male die assembly is movably connected inside the female die 2, and the die male die assembly comprises a movable male die 1 and a fixed male die 3.

The implementation scenario is specifically as follows:

when the utility model is used, firstly, the female die 2 and the male die component are respectively demagnetized to prevent excessive waste materials from being magnetically accumulated and adsorbed, when the male die component is punched into the female die 2, the punching depth is controlled to be 3mm-5mm, the blocked waste materials are controlled to be within three pieces, in addition, reasonable punching gaps are selected and corrected, and the influence caused by the waste materials moving upwards is reduced to the maximum extent.

And finally: the present invention is not limited to the above preferred embodiments, but rather, any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a prevent jumping waste material mould improves structure which characterized in that: comprises a female die (2), a male die component of the die is movably connected in the female die (2), the male die component of the die comprises a movable male die (1) and a fixed male die (3), the female die (2) comprises a bottom die (21), the top end of the bottom die (21) is fixedly connected with a top die (24), the middle part of the inner side of the top die (24) is provided with an inclined groove (23), the top of the inner side of the top die (24) is fixedly connected with a circular ring (22), the movable male die (1) comprises a movable shell (18), a plurality of ejection pin rods (16) are arranged inside the bottom end of the movable shell (18), an air passage (17) is formed in the center of the movable shell (18), an inflation hole (13) fixedly connected with the movable shell (18) is formed in the top end of the air passage (17), and the fixed male die (3) comprises a fixed shell (31).

2. The improved structure of the scrap-jumping-preventing die as claimed in claim 1, wherein: the distance between the circular ring (22) and the top end of the top die (24) is 2mm-3mm, and the thickness of the circular ring (22) is 0.01 mm.

3. The improved structure of the scrap-jumping-preventing die as claimed in claim 1, wherein: the inclined groove (23) is processed from the center to the outer side direction and the depth of the inclined groove is 0.005mm-0.1 mm.

4. The improved structure of the scrap-jumping-preventing die as claimed in claim 1, wherein: the top ends of the ejection pin rods (16) are fixedly connected with connecting springs (15), the top portions of the connecting springs (15) are fixedly connected with knockout pins (11), and the top ends of the knockout pins (11) are fixedly connected with control ring discs (12).

5. The improved structure of the scrap-jumping-preventing die as claimed in claim 4, wherein: supporting springs (14) are movably sleeved at the tops of the knockout pins (11), the top ends of the supporting springs (14) are connected with the bottom end of the control ring disc (12), and the bottom ends of the supporting springs (14) are connected with the top end of the movable shell (18).

6. The improved structure of the scrap-jumping-preventing die as claimed in claim 1, wherein: the bottom end of the fixed shell (31) is fixedly connected with an annular reinforcing rib (32).

7. The improved structure of the scrap-jumping-preventing die as claimed in claim 1, wherein: the bottom end of the fixed shell (31) is fixedly connected with a conical bulge (33).

8. The improved structure of the scrap-jumping-preventing die as claimed in claim 1, wherein: the bottom of the fixed shell (31) is provided with a plurality of circular truncated cone pits (34).

9. The improved structure of the scrap-jumping-preventing die as claimed in claim 1, wherein: the bottom of the inner side of the bottom die (21) is machined into a smooth surface.

10. The improved structure of the scrap-jumping-preventing die as claimed in claim 1, wherein: the inner side of the top die (24) is processed into a rough surface.