CN223266182U - Exhaust mechanism of injection mold - Google Patents

Abstract

The present utility model relates to the technical field of injection mold equipment, and in particular to an injection mold exhaust mechanism, the technical solution of which includes a box body, a feed port is provided at the upper end of the box body, a stirring chamber is provided at the lower end of the feed port, a discharge chamber is installed at the lower end of the stirring chamber, a discharge channel is installed at the lower end of the discharge chamber, the lower end of the discharge channel is connected to a molding cavity, an exhaust pipe is provided at the upper end of the molding cavity, and a connector is connected to the end of the exhaust pipe away from the molding cavity. The present utility model is provided with an exhaust mechanism in the injection mold, and the exhaust mechanism can discharge the air in the molding cavity in advance, so that the molding cavity can become a relatively vacuum environment, thereby ensuring the smooth completion of injection molding, and the exhaust member can be slidably installed with multiple sets of exhaust mechanisms of different specifications.

Description

Exhaust mechanism of injection mold

Technical Field

The utility model relates to the technical field of injection mold equipment, in particular to an exhaust mechanism of an injection mold.

Background

The injection mold is one kind of processing technology and is mainly used in producing various plastic products. The basic principle is that under the high temperature condition, the molten plastic material is injected into a mould, and the plastic material is cooled and solidified to form a finished product with a required shape, and the manufacturing process of the injection mould is summarized, generally, the thermoplastic material is introduced into the injection mould, stirred and then sent into a forming cavity for forming, so that the manufacturing process of the whole mould is completed.

The prior art has the following defects in the using process:

1. Before injection molding materials are introduced into an injection mold in the prior art, a certain amount of air possibly exists in an injection cavity of the injection mold, if the air cannot be discharged in time, a certain problem is easily caused in a molded product, so that the performance of the whole product is poor, and the production efficiency cannot be improved well;

2. In the prior art, the injection mold is usually required to cool down the injection cavity through water cooling, so that the molding speed of the mold is accelerated, more water resources can be wasted if the cooling liquid is used only once, the improvement of the production capacity is not facilitated, and the industrial structure cannot be optimized well.

In view of this, we propose an exhaust mechanism of injection mold to solve the existing problems.

Disclosure of utility model

The utility model aims to provide an exhaust mechanism of an injection mold, which solves the problems in the prior art.

In order to achieve the purpose, the exhaust mechanism of the injection mold comprises a box body, wherein the upper end of the box body is provided with a feed inlet, the lower end of the feed inlet is provided with a stirring cavity, the lower end of the stirring cavity is provided with a blanking cavity, the lower end of the blanking cavity is provided with a blanking channel, the lower end of the blanking channel is connected with a molding cavity, the upper end of the molding cavity is provided with an exhaust pipe, one end of the exhaust pipe, which is far away from the molding cavity, is connected with a connector, one side of the box body is provided with a sliding track, a plurality of groups of sliding blocks are arranged on the sliding track, the sliding blocks are provided with a first exhaust mechanism and a second exhaust mechanism, the first exhaust mechanism and the second exhaust mechanism are respectively provided with an exhaust head, the inside of the first exhaust mechanism and the inside of the second exhaust mechanism are respectively provided with a connecting structure, and the connector and the connecting structure are installed through threads.

Preferably, one side of the molding cavity is provided with a water tank, the upper end of the water tank is provided with a cooling liquid pipe, the cooling liquid pipe is close to the bottom and the side of the molding cavity, the cooling liquid pipe is connected with a circulating liquid pipe, one end of the circulating liquid pipe is connected with the cooling liquid pipe, and the other end of the circulating liquid pipe is connected with the water tank.

Preferably, a cooling device is arranged on one side of the circulating liquid pipe, a heat dissipation device is arranged on one side, close to the box body, of the cooling device, and a plurality of groups of heat dissipation holes are formed in the position, close to the heat dissipation device, of the box body.

Preferably, the upper end of one side of the water tank is connected with a water inlet pipe, the lower end of one side of the water tank is connected with a water outlet pipe, the cooling liquid pipe is provided with a suction pump near the water tank, and the circulating liquid pipe is provided with a circulating pump near the water tank.

Preferably, the exhaust pipe is provided with an air valve, and a turning pipe is arranged at the position close to the connector.

Preferably, a rotating rod is arranged in the stirring cavity, and a plurality of groups of stirring rollers are fixed on the rotating rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the utility model, the exhaust mechanism is arranged in the injection mold, and the air in the molding cavity can be discharged in advance through the exhaust mechanism, so that the molding cavity can be in a relatively vacuum environment, the smooth completion of injection molding is ensured, the exhaust piece can be slidably provided with a plurality of groups of exhaust mechanisms with different specifications, and the exhaust piece is respectively connected with the exhaust pipe through the connecting structure, so that the switching can be conveniently performed according to different conditions, and the overall working efficiency is better improved.

2. According to the utility model, through the structure that the water circulation is arranged in the injection mold, the cooling liquid after cooling the forming cavity can reenter the water tank along with the circulation pipeline and can be cooled by the cooling device before entering the water tank, so that the water resource can be better saved as a whole, and the industrial structure can be better optimized.

Drawings

FIG. 1 is a schematic diagram of the front internal structure of the present utility model;

FIG. 2 is a schematic view of the structure at A of the present utility model;

fig. 3 is a schematic diagram of the structure at B of the present utility model.

In the figure, 1, a box body, 2, a feed inlet, 3, a rotating rod, 4, a stirring cavity, 5, a stirring roller, 6, a cooling liquid pipe, 7, a forming cavity, 8, a circulating liquid pipe, 9, a cooling device, 10, a heat radiating device, 11, a heat radiating hole, 12, a discharging channel, 13, a discharging cavity, 14, a sliding track, 15, a sliding block, 16, a first exhaust mechanism, 17, an exhaust head, 18, a connecting structure, 19, a connector, 20, a turning pipe, 21, an exhaust pipe, 22, an air valve, 23, a water inlet pipe, 24, a suction pump, 25, a water tank, 26, a circulating pump, 27, a water outlet pipe, 28 and a second exhaust mechanism.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

Example 1

As shown in fig. 1, 2 and 3, the exhaust mechanism of the injection mold provided by the utility model comprises a box body 1, wherein a feed inlet 2 is arranged at the upper end of the box body 1, the feed inlet 2 is used for guiding injection molding materials into the box body 1, a stirring cavity 4 is arranged at the lower end of the feed inlet 2, the stirring cavity 4 is used for stirring the injection molding materials, a blanking cavity 13 is arranged at the lower end of the stirring cavity 4, the blanking cavity 13 is used for discharging the injection molding materials out of the stirring cavity 4, a blanking channel 12 is arranged at the lower end of the blanking cavity 13, the blanking channel 12 is used for discharging the injection molding materials into a forming cavity 7, the lower end of the blanking channel 12 is connected with the forming cavity 7, the forming cavity 7 is used for forming a complete finished product, an exhaust pipe 21 is arranged at the upper end of the forming cavity 7, the exhaust pipe 21 is used for discharging redundant gas in the forming cavity 7, a connector 19 is connected with one end of the exhaust pipe 21 away from the forming cavity 7, a sliding track 14 is arranged at one side of the box body 1, the sliding track 14 is provided with a plurality of groups of sliding blocks 15, the sliding blocks 15 drive the first exhaust mechanism 16 and the second exhaust mechanism 28 to slide on the sliding track 14, the sliding blocks 15 are provided with the first exhaust mechanism 16 and the second exhaust mechanism 28, the first exhaust mechanism 16 and the second exhaust mechanism 28 can exhaust redundant gas in the forming cavity 7, the first exhaust mechanism 16 and the second exhaust mechanism 28 are provided with exhaust heads 17, the exhaust heads 17 are used for exhausting redundant gas, so that the forming cavity 7 is in a relatively vacuum environment, the inside of the first exhaust mechanism 16 and the inside of the second exhaust mechanism 28 are provided with connecting structures 18, the connectors 19 and the connecting structures 18 are installed through threads, the connectors 19 and the connecting structures 18 can be twisted through the threads, the two can be tightly connected together through the threads according to different conditions, the connector 19 may be connected to different venting mechanisms.

Further, one side of the forming cavity 7 is provided with a water tank 25, the upper end of the water tank 25 is provided with a cooling liquid pipe 6, the cooling liquid pipe 6 is close to the bottom and the side of the forming cavity 7, the cooling liquid pipe 6 is connected with a circulating liquid pipe 8, one end of the circulating liquid pipe 8 is connected with the cooling liquid pipe 6, the other end of the circulating liquid pipe 8 is connected with the water tank 25, the cooling liquid pipe 6 is used for carrying out cooling treatment on the bottom and the side of the forming cavity 7, and the circulating liquid pipe 8 is used for circulating cooled cooling liquid into the water tank 25 for secondary utilization.

Further, a cooling device 9 is arranged on one side of the circulating liquid pipe 8, a heat dissipating device 10 is arranged on one side, close to the box body 1, of the cooling device 9, a plurality of groups of heat dissipating holes 11 are formed in the position, close to the heat dissipating device 10, of the box body 1, the heat dissipating device 10 is used for cooling the circulating liquid pipe 8, and redundant heat is discharged through the heat dissipating holes 11.

Further, the upper end of one side of the water tank 25 is connected with the water inlet pipe 23, the lower end of one side of the water tank 25 is connected with the water outlet pipe 27, the cooling liquid pipe 6 is provided with the suction pump 24 near the water tank 25, the circulating liquid pipe 8 is provided with the circulating pump 26 near the water tank 25, the suction pump 24 is used for pumping the cooling liquid in the water tank 25 to enter the cooling liquid pipe 6, and the circulating pump 26 is used for putting the cooling liquid in the circulating liquid pipe 8 into the water tank 25 again.

Further, an air valve 22 is installed on the exhaust pipe 21, a turning pipe 20 is arranged at the position, close to the connector 19, of the exhaust pipe 21, the air valve 22 is used for switching on and off the exhaust pipe 21, and the turning pipe 20 enables the end of the exhaust pipe 21 to extend within a certain range, so that the end is convenient to connect with an exhaust mechanism.

Further, the stirring cavity 4 is internally provided with a rotating rod 3, a plurality of groups of stirring rollers 5 are fixed on the rotating rod 3, and the rotating rod 3 drives the plurality of groups of stirring rollers 5 to stir injection molding materials in the stirring cavity 4 well.

The working principle of the exhaust mechanism of the injection mold based on the first embodiment is that before the injection molding box body 1 is used, different exhaust mechanisms are selected according to the size of the molding cavity 7 and the rapid injection molding condition, the end head of the exhaust pipe 21 is prolonged through the turning pipe 20 so as to be fixedly connected with the exhaust mechanism, then injection molding materials are put into the stirring cavity 4 through the feeding hole 2, the injection molding materials enter the molding cavity 7 through the blanking channel 12 through stirring, and then the products are rapidly molded through cooling of the cooling liquid pipe 6.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

Claims (6)

1. The utility model provides an injection mold exhaust mechanism, includes box (1), its characterized in that box (1) upper end is provided with feed inlet (2), feed inlet (2) lower extreme is provided with stirring chamber (4), unloading chamber (13) are installed to stirring chamber (4) lower extreme, unloading passageway (12) are installed to unloading chamber (13) lower extreme, unloading passageway (12) lower extreme is connected with shaping chamber (7), shaping chamber (7) upper end is provided with blast pipe (21), blast pipe (21) are kept away from shaping chamber (7) one end and are connected with connector (19), box (1) one side is provided with slip track (14), set up multiunit sliding block (15) on slip track (14), install first exhaust mechanism (16) and second exhaust mechanism (28) on sliding block (15), all be provided with exhaust head (17) on first exhaust mechanism (16) and second exhaust mechanism (28), first exhaust mechanism (16) and second exhaust mechanism (28) are provided with connector (19) and connection structure (18) through screw thread connection.

2. The exhaust mechanism of the injection mold, as set forth in claim 1, characterized in that a water tank (25) is disposed at one side of the molding cavity (7), a coolant pipe (6) is disposed at an upper end of the water tank (25), the coolant pipe (6) is close to a bottom and a side of the molding cavity (7), the coolant pipe (6) is connected with a circulating liquid pipe (8), one end of the circulating liquid pipe (8) is connected with the coolant pipe (6), and the other end of the circulating liquid pipe (8) is connected with the water tank (25).

3. The exhaust mechanism of an injection mold according to claim 2, wherein a cooling device (9) is arranged on one side of the circulating liquid pipe (8), a heat dissipation device (10) is arranged on one side, close to the box body (1), of the cooling device (9), and a plurality of groups of heat dissipation holes (11) are formed in the position, close to the heat dissipation device (10), of the box body (1).

4. The exhaust mechanism of an injection mold according to claim 2, wherein the upper end of one side of the water tank (25) is connected with a water inlet pipe (23), the lower end of one side of the water tank (25) is connected with a water outlet pipe (27), the cooling liquid pipe (6) is provided with a suction pump (24) near the water tank (25), and the circulating liquid pipe (8) is provided with a circulating pump (26) near the water tank (25).

5. An exhaust mechanism for an injection mold according to claim 1, wherein the exhaust pipe (21) is provided with an air valve (22), and the exhaust pipe (21) is provided with a turning pipe (20) adjacent to the joint (19).

6. The exhaust mechanism of the injection mold according to claim 1, wherein a rotating rod (3) is arranged in the stirring cavity (4), and a plurality of groups of stirring rollers (5) are fixed on the rotating rod (3).