CN213891223U

CN213891223U - Hollow die head with air flow control structure

Info

Publication number: CN213891223U
Application number: CN202022927338.5U
Authority: CN
Inventors: 何海潮; 刘鑫
Original assignee: SUZHOU JWELL PRECISION MACHINERY CO Ltd
Current assignee: SUZHOU JWELL PRECISION MACHINERY CO Ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-08-06
Anticipated expiration: 2030-12-09

Abstract

The utility model relates to a hollow die head with an air flow control structure, which comprises a die body, a die lip, a die, a core rod and a plurality of flow distribution blocks; the die body comprises an upper die body, a middle die body and a lower die body; the core rod is fixedly arranged at the front end of the middle die body; a mounting groove for mounting a plurality of flow distribution blocks is formed in the core rod; each flow distribution block is sequentially provided with a steady flow air groove, a plurality of air inlet holes, a transverse through hole and a plurality of air outlet holes along the back-to-front direction; the middle die body is provided with a die body air hole communicated with an external air source, the core rod is provided with a plurality of core rod air holes, and the die body air hole, the steady flow air groove, the air inlet air hole, the transverse through hole, the air outlet air hole and the core rod air holes are sequentially communicated to form an air flow channel. And the air in the die body is uniformly distributed for the second time through the newly added flow distribution block, so that the sprayed air is uniform and stable.

Description

Hollow die head with air flow control structure

Technical Field

The utility model relates to a cavity blowing die head field, in particular to cavity die head with air flow control structure.

Background

The existing hollow flat die heads are all composed of a die body, a core rod, a throttling rod, a die lip and a die opening. When air directly enters the core rod through the air hole in the middle of the die body and is discharged, the air flow in some areas is large, the air flow in some areas is small, the air is sprayed unevenly to influence the stability and the uniformity of the discharging of the flat die head, and the quality of a produced finished product is not high.

Disclosure of Invention

In order to solve the technical problem, the utility model aims to solve the problem that the gas ejection of the die head is uneven and unstable.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: a hollow die head with an air flow control structure comprises a die body, a die lip, a die and a core rod; the die body comprises an upper die body, a middle die body and a lower die body; the middle die body is positioned between the upper die body and the lower die body; the core rod is fixedly arranged at the front end of the middle die body; the hollow die head also comprises a plurality of flow distribution blocks, and a mounting groove for mounting the flow distribution blocks is formed in the core rod; each flow distribution block is sequentially provided with a steady flow air groove, a plurality of air inlet holes, a transverse through hole and a plurality of air outlet holes along the back-to-front direction; the middle die body is internally provided with a die body air hole communicated with an external air source, and the die body air hole is communicated with the flow stabilizing air grooves of the flow distribution blocks; the core rod is provided with a plurality of core rod air holes which are communicated with the air outlet holes of the flow distribution blocks one by one; the die body air hole, the flow stabilizing air groove, the air inlet air hole, the transverse through hole, the air outlet air hole and the core rod air hole are sequentially communicated to form an air flow channel.

In the above technical solution, it is further preferable that the die lip includes an upper die lip and a lower die lip; the neck ring mold comprises an upper neck ring mold and a lower neck ring mold; the upper die body, the upper die lip and the upper die are sequentially connected through screws, and the lower die body, the lower die lip and the lower die are sequentially connected through screws.

In the above technical solution, it is further preferable that the transverse through hole and the axis of the steady flow air channel are in the transverse direction, and the axis of the air inlet hole and the axis of the air outlet hole are in the longitudinal direction.

In the above technical scheme, it is further preferred that the diameter of the air inlet hole is larger than that of the air outlet hole, and the air inlet hole and the air outlet hole are arranged in a staggered manner.

In the above technical solution, it is further preferable that the hollow die head further includes a throttle rod, and the throttle rod is disposed on the die lip.

Compared with the prior art, the utility model obtain following beneficial effect:

the utility model discloses a newly-increased flow distribution piece carries out secondary evenly distributed to the air in the die body, makes the gaseous even stability of spun, improves the stability and the homogeneity of the die head ejection of compact.

Drawings

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

FIG. 2 is a schematic perspective view of a flow distribution block;

fig. 3 is a schematic perspective view of the present invention.

Wherein: 1. a mold body; 11. feeding a mold body; 12. a middle die body; 121. air holes of the mold body; 13. a lower die body; 2. a core rod; 21. core rod air holes; 22. mounting grooves; 3. a throttle rod; 4. a die lip; 41. an upper die lip; 42. a lower die lip; 5. a neck ring mold; 51. an upper opening die; 52. a lower opening die; 6. a flow distribution block; 61. a steady flow gas tank; 62. air inlet holes; 63. a transverse through-hole; 64. and air outlet holes.

Detailed Description

For the purpose of explaining the technical content, the structural features, the achieved objects and the effects of the present invention in detail, the following description will be made in conjunction with the embodiments and the accompanying drawings, wherein the positional relationships "up", "down", "front" and "rear" in the present specification correspond to the upper, lower, front and rear positions in fig. 1, respectively.

As shown in fig. 1 and 3, the utility model discloses a hollow die head with air flow control structure, including die body 1, die lip 4, throttle stick 3, bush 5, plug 2 and a plurality of flow distribution piece 6. The die body 1 is divided into an upper die body 11, a middle die body 12 and a lower die body 13; the die lip 4 is divided into an upper die lip 41 and a lower die lip 42; the neck ring mold 5 is divided into an upper neck ring mold 51 and a lower neck ring mold 52; the upper die body 11, the upper die lip 41 and the upper die 51 are connected in sequence through screws; the lower die body 13, the lower die lip 42 and the lower opening die 52 are connected in sequence through screws; the die lips 4 are all provided with the throttle rods 3 to control the size of the gap between the die lips 4 and the middle die body 12. The core rod 2 is arranged at the front end of the middle die body 12; the middle mold body 12 is provided with a plurality of mold body air holes 121 communicated with the external origin; the mandrel 2 has a plurality of mandrel air holes 21 and mounting grooves 22 for mounting the flow distribution block 6.

As shown in fig. 1 and 2, the flow distribution block 6 is sequentially provided with a steady flow air channel 61, a plurality of air inlet holes 62, a transverse through hole 63 and a plurality of air outlet holes 64 along the rear-to-front direction; the axial lines of the steady air flow groove 61 and the transverse through hole 63 are in the transverse direction, the axial lines of the air inlet hole 62 and the air outlet hole 64 are in the longitudinal direction, the diameter of the air inlet hole 62 is larger than that of the air outlet hole 64, and the air inlet hole 62 and the air outlet hole 64 are arranged in a staggered mode in the transverse direction. The plurality of die body air holes 121 are communicated with the flow stabilizing air grooves 61 in the flow distribution blocks 6 one by one, and the plurality of core rod air holes 21 are communicated with the plurality of air outlet holes 64 in the flow distribution blocks 6 one by one. The die body air hole 121, the steady flow air groove 61, the air inlet air hole 62, the transverse through hole 63, the air outlet air hole 64 and the core rod air hole 21 are communicated in sequence to form an air flow channel.

Air enters the constant air flow groove 61 of the flow distribution block 6 from the die body air hole 121 of the middle die body 12, the air is uniformly distributed for the first time through the air inlet air hole 62 after the air pressure is stabilized in the constant air flow groove 61, the distributed air enters the transverse through hole 63, the air enters the air outlet air hole 64 after the air pressure is stabilized again, the air is uniformly distributed for the second time through the air outlet air hole 64 and then enters the mandrel air hole 21, and the air is uniformly sprayed out uniformly by the mandrel air hole 21.

The utility model discloses a flow distribution piece 6 that increases carries out the secondary distribution with the air in the die body 1, and the air that makes 2 plugs blow off is even stable, improves the stability and the homogeneity of the die head ejection of compact.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims, specification and equivalents thereof.

Claims

1. A hollow die head with an air flow control structure comprises a die body (1), a die lip (4), a die (5) and a core rod (2); the die body (1) comprises an upper die body (11), a middle die body (12) and a lower die body (13); the middle die body (12) is positioned between the upper die body (11) and the lower die body (13); the core rod (2) is fixedly arranged at the front end of the middle die body (12); the hollow die head is characterized by further comprising a plurality of flow distribution blocks (6), wherein installation grooves (22) for installing the flow distribution blocks (6) are formed in the core rod (2); each flow distribution block (6) is sequentially provided with a steady flow air channel (61), a plurality of air inlet holes (62), a transverse through hole (63) and a plurality of air outlet holes (64) along the back-to-front direction; the middle mold body (12) is internally provided with a mold body air hole (121) communicated with an external air source, and the mold body air hole (121) is communicated with the steady flow air grooves (61) of each flow distribution block (6); the core rod (2) is provided with a plurality of core rod air holes (21), and the plurality of core rod air holes (21) are communicated with the plurality of air outlet holes (64) of each flow distribution block (6) one by one; the die body air hole (121), the steady flow air groove (61), the air inlet air hole (62), the transverse through hole (63), the air outlet air hole (64) and the core rod air hole (21) are communicated in sequence to form an air flow channel.

2. The hollow die with an air flow control structure according to claim 1, wherein said die lip (4) comprises an upper die lip (41) and a lower die lip (42); the neck ring mold (5) comprises an upper neck ring mold (51) and a lower neck ring mold (52); the upper die body (11), the upper die lip (41) and the upper die opening (51) are connected in sequence through screws, and the lower die body (13), the lower die lip (42) and the lower die opening (52) are connected in sequence through screws.

3. The hollow die head with the air flow control structure according to claim 1, wherein the transverse through hole (63) is in a transverse direction with an axis of the steady air flow groove (61), and the air inlet hole (62) is in a longitudinal direction with an axis of the air outlet hole (64).

4. The hollow die head with the air flow control structure according to claim 1, wherein the diameter of the air inlet holes (62) is larger than that of the air outlet holes (64), and the air inlet holes (62) and the air outlet holes (64) are arranged in a staggered manner.

5. A hollow die with an air flow control structure according to claim 1, characterized in that it further comprises a throttle bar (3), said throttle bar (3) being arranged on said die lip (4).