CN216373184U

CN216373184U - Structure for reducing rapid gas discharge in mold cavity in injection molding period

Info

Publication number: CN216373184U
Application number: CN202122987378.3U
Authority: CN
Inventors: 周期峰
Original assignee: Youcheng Machinery Tianjin Co ltd
Current assignee: Youcheng Machinery Tianjin Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-04-26
Anticipated expiration: 2031-12-01

Abstract

The utility model discloses a rapid gas discharge structure in a die cavity for reducing the injection molding period, which comprises a lower die holder, an upper die holder and a molding cavity arranged in the upper die holder, wherein the upper die holder is arranged at the upper end of the lower die holder; the utility model relates to the technical field of injection molding. This reduce gaseous quick emission structure in die cavity of the phase of moulding plastics, through moulding plastics mouthful interior injection moulding to the die cavity, it makes inside atmospheric pressure increase to mould plastics to fill the shaping chamber, gaseous pressure overcomes the elasticity of second spring and pushes the shrouding open, gaseous enters into in the blast pipe and discharges through the venthole through the inlet port, can carry out the high-speed joint to the blast pipe through the high-speed joint head, thereby can take out the gas that the die cavity inner chamber was collected, thereby can reduce the emission of tail gas when using, great improvement the environment, staff's is healthy has been guaranteed.

Description

Structure for reducing rapid gas discharge in mold cavity in injection molding period

Technical Field

The utility model relates to the technical field of injection molding, in particular to a structure for reducing rapid gas discharge in a mold cavity in an injection molding period.

Background

Moulds (Mule) are used for obtaining various moulds and tools of required products by injection moulding, blow moulding, 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".

In the existing injection mold, waste gas in a mold cavity is directly discharged into a production workshop, so that certain pollution can be caused to the environment in the production workshop, and certain harm can be caused to the health of an operator.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a structure for quickly discharging gas in a mold cavity during the injection molding period, and solves the problem that the waste gas in the mold cavity of the existing injection mold is directly discharged into a production workshop, so that the environment in the production workshop can be polluted to a certain extent, and the body health of an operator is damaged to a certain extent.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the structure for reducing the rapid gas discharge in the die cavity in the injection molding period comprises a lower die holder, an upper die holder and a forming cavity arranged in the upper die holder, wherein the upper die holder is arranged at the upper end of the lower die holder, an injection molding port is arranged at the top of the upper die holder, an exhaust pipe is arranged on one side of the injection molding port, and a discharge mechanism is arranged in the exhaust pipe; the exhaust mechanism comprises a positioning plate fixedly mounted on the inner wall of the exhaust pipe, an air outlet hole is formed in the surface of the positioning plate, a guide rod is fixedly connected to the bottom end of the positioning plate, a sealing plate is sleeved at the bottom end of the guide rod, a groove is formed in the top of the sealing plate, the bottom end of the guide rod is located in the groove, and a second spring is sleeved on the guide rod.

Preferably, the top of the second spring is fixedly connected with the bottom of the positioning plate, the bottom end of the second spring is fixedly connected with the top of the sealing plate, and a sealing gasket is arranged on the surface of the bottom end of the sealing plate.

Preferably, the one end threaded connection that the blast pipe is located the upper die base outside has a high-speed joint head, the other end of blast pipe and the shaping chamber fixed connection in the upper die base.

Preferably, the inner wall fixedly connected with fixed plate of blast pipe, the inlet port has been seted up on the fixed plate, the size of seal plate is greater than the size of inlet port.

Preferably, the front end surface of the upper die holder is fixedly connected with a guide plate, and the guide plate is provided with symmetrical guide grooves.

Preferably, the front end surface of die holder sets up the spout of symmetry, the symmetry fixedly connected with locating lever in the spout, sliding connection has the mounting panel on the locating lever, the outside end of mounting panel is provided with first spring, and first spring cup joints the surface at the locating lever, the front end fixed surface of mounting panel is connected with the guide post, the locating lever is located the guide way and baffle sliding connection.

Advantageous effects

The utility model provides a structure for quickly discharging gas in a mold cavity, which reduces the injection molding period. Compared with the prior art, the method has the following beneficial effects:

(1) this reduce the gaseous quick emission structure in die cavity of the period of moulding plastics, through moulding plastics in mouthful to the die cavity of moulding plastics, it makes inside atmospheric pressure increase to fill the shaping chamber to mould plastics, gaseous pressure overcomes the elasticity of second spring and pushes the shrouding open, gaseous enters into in the blast pipe and discharges through the venthole through the inlet port, can carry out the high-speed joint to the blast pipe through the high-speed joint head, thereby can take out the gas that the die cavity inner chamber was collected, thereby can reduce the emission of tail gas when using, great improvement the environment, staff's is healthy has been guaranteed.

(2) This reduce quick discharge structure of gaseous in die cavity of the phase of moulding plastics, in-process that descends through the upper die base, the guide drives the guide post relative slip that is located the guide way, the guide post drives the mounting panel and is located the outside slip on the locating lever, and compress first spring, under the effect of first spring, realize the cushioning effect to the upper die base, after the completion of moulding plastics, first spring can drive the upper die base rebound and reset, more convenience like this, the production efficiency is improved, the efficiency of using is greatly improved.

Drawings

FIG. 1 is a perspective view of the external structure of the present invention;

FIG. 2 is a perspective view of the drain mechanism of the present invention;

fig. 3 is an enlarged view of a point a in fig. 1.

In the figure: 1. a lower die holder; 2. an upper die holder; 3. an injection molding port; 4. an exhaust pipe; 5. a discharge mechanism; 101. a chute; 102. positioning a rod; 103. mounting a plate; 104. a first spring; 105. a guide post; 201. a guide plate; 202. a guide groove; 401. a quick connector; 402. a fixing plate; 403. an air inlet; 501. positioning a plate; 502. an air outlet; 503. a guide bar; 504. closing the plate; 505. a groove; 506. a second spring.

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. 1-3, the present invention provides a technical solution: the structure for rapidly discharging gas in the die cavity for reducing the injection molding period comprises a lower die holder 1, an upper die holder 2 and a molding cavity arranged in the upper die holder 2, wherein the upper die holder 2 is arranged at the upper end of the lower die holder 1, an injection port 3 is arranged at the top of the upper die holder 2, an exhaust pipe 4 is arranged on one side of the injection port 3, and a discharge mechanism 5 is arranged inside the exhaust pipe 4; the exhaust mechanism 5 comprises a positioning plate 501 fixedly mounted on the inner wall of the exhaust pipe 4, an air outlet 502 is formed in the surface of the positioning plate 501, a guide rod 503 is fixedly connected to the bottom end of the positioning plate 501, a sealing plate 504 is sleeved at the bottom end of the guide rod 503, a groove 505 is formed in the top of the sealing plate 504, the bottom end of the guide rod 503 is located in the groove 505, a second spring 506 is sleeved on the guide rod 503, the pressure of gas overcomes the elastic force of the second spring 506 to push the sealing plate 504 away, the gas enters the exhaust pipe 4 through an air inlet 403 and is exhausted through the air outlet 502, the exhaust pipe 4 can be quickly connected through a quick connector 401, and therefore the gas collected in the cavity of the mold can be extracted, so that the exhaust emission can be reduced during use, the environment is greatly improved, and the health of workers is guaranteed; the top of the second spring 506 is fixedly connected with the bottom of the positioning plate 501, the bottom end of the second spring 506 is fixedly connected with the top of the sealing plate 504, and a sealing pad is arranged on the surface of the bottom end of the sealing plate 504, so that dust is prevented from entering the interior of the mold through the air inlet 403, and further the injection molding effect is prevented from being influenced; one end of the exhaust pipe 4, which is positioned outside the upper die holder 2, is in threaded connection with a quick connector 401, and the other end of the exhaust pipe 4 is fixedly connected with a forming cavity in the upper die holder 2; the inner wall of the exhaust pipe 4 is fixedly connected with a fixing plate 402, an air inlet 403 is formed in the fixing plate 402, and the size of the sealing plate 504 is larger than that of the air inlet 403; the front end surface of the upper die holder 2 is fixedly connected with a guide plate 201, and the guide plate 201 is provided with symmetrical guide grooves 202; the front end surface of the lower die holder 1 is provided with symmetrical sliding grooves 101, positioning rods 102 are fixedly connected in the symmetrical sliding grooves 101, mounting plates 103 are connected on the positioning rods 102 in a sliding manner, first springs 104 are arranged at the outer side ends of the mounting plates 103, the first springs 104 are sleeved on the outer surfaces of the positioning rods 102, guide posts 105 are fixedly connected on the front end surfaces of the mounting plates 103, the positioning rods 102 are positioned in the guide grooves 202 and are connected with guide plates 201 in a sliding manner, the guide plates 201 drive the guide posts 105 positioned in the guide grooves 202 to slide relatively, the guide posts 105 drive the mounting plates 103 to slide outwards on the positioning rods 102 and compress the first springs 104, the buffer effect on the upper die holder 2 is realized under the action of the first springs 104, after the injection molding is completed, the first springs 104 can drive the upper die holder 2 to move upwards for resetting, so that the convenience is improved, and the production efficiency is improved, the use efficiency is greatly improved.

And those not described in detail in this specification are well within the skill of those in the art.

After the die is closed, injection molding is carried out in the die cavity through the injection molding port 3, the pressure in the die cavity is increased by filling the molding cavity with the injection molding, the pressure of gas overcomes the elastic force of the second spring 506 to push the sealing plate 504 away, the gas enters the exhaust pipe 4 through the gas inlet hole 403 and is discharged through the gas outlet hole 502, the exhaust pipe 4 can be quickly connected through the quick connector 401, and therefore the gas collected in the die cavity can be extracted out, the emission of tail gas can be reduced during use, the environment is greatly improved, and the health of workers is guaranteed; simultaneously, upper die holder 2 is at the in-process that descends, guide 201 drives the guide post 105 relative slip that is located guide way 202, guide post 105 drives mounting panel 103 and is located the outside slip on locating lever 102, and compress first spring 104, under the effect of first spring 104, the buffering effect to upper die holder 2 is realized, after the completion of moulding plastics, first spring 104 can drive upper die holder 2 rebound and reset, convenience more like this, the production efficiency is improved, the efficiency of using is greatly improved, the above is the theory of operation that the interior gas of the die cavity that reduces the period of moulding plastics discharges the structure fast.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Reduce the quick discharge structure of gaseous in die cavity of the phase of moulding plastics, including die holder (1) and upper die base (2) to and set up the shaping chamber in upper die base (2), upper die base (2) set up the upper end at lower die base (1), its characterized in that: an injection molding port (3) is formed in the top of the upper die holder (2), an exhaust pipe (4) is arranged on one side of the injection molding port (3), and an exhaust mechanism (5) is arranged inside the exhaust pipe (4);

the exhaust mechanism (5) comprises a positioning plate (501) fixedly mounted on the inner wall of the exhaust pipe (4), an air outlet (502) is formed in the surface of the positioning plate (501), a guide rod (503) is fixedly connected to the bottom end of the positioning plate (501), a sealing plate (504) is sleeved at the bottom end of the guide rod (503), a groove (505) is formed in the top of the sealing plate (504), the bottom end of the guide rod (503) is located in the groove (505), and a second spring (506) is sleeved on the guide rod (503).

2. The structure for rapid venting of gas in a mold cavity during a reduced injection molding cycle of claim 1, wherein: the top of the second spring (506) is fixedly connected with the bottom of the positioning plate (501), the bottom end of the second spring (506) is fixedly connected with the top of the sealing plate (504), and a sealing gasket is arranged on the surface of the bottom end of the sealing plate (504).

3. The structure for rapid venting of gas in a mold cavity during a reduced injection molding cycle of claim 1, wherein: the exhaust pipe (4) is located the outside one end threaded connection of upper die base (2) and has high-speed joint head (401), the other end of exhaust pipe (4) and the shaping chamber fixed connection in upper die base (2).

4. The structure for rapid venting of gas in a mold cavity during a reduced injection molding cycle of claim 3, wherein: the inner wall of the exhaust pipe (4) is fixedly connected with a fixing plate (402), an air inlet hole (403) is formed in the fixing plate (402), and the size of the sealing plate (504) is larger than that of the air inlet hole (403).

5. The structure for rapid venting of gas in a mold cavity during a reduced injection molding cycle of claim 1, wherein: the front end surface of the upper die holder (2) is fixedly connected with a guide plate (201), and the guide plate (201) is provided with symmetrical guide grooves (202).

6. The structure for rapid venting of gas in a mold cavity during a reduced injection molding period of claim 5, wherein: the utility model discloses a die holder, including lower die holder (1), spout (101) of symmetry, the front end surface of lower die holder (1) is seted up the spout (101), the symmetry fixedly connected with locating lever (102) in spout (101), sliding connection has mounting panel (103) on locating lever (102), the outside end of mounting panel (103) is provided with first spring (104), and first spring (104) cup joint the surface at locating lever (102), the front end fixed surface of mounting panel (103) is connected with guide post (105), locating lever (102) are located guide way (202) in with baffle (201) sliding connection.