CN206216981U - A kind of automatic control exhaust apparatus and tire-mold - Google Patents

Abstract

The utility model discloses a self-control exhaust device and a tire mold, which belong to the technical field of mold exhaust, and include a casing and a sealing column. A through hole is arranged in the middle of the casing, and a detection device is arranged at one end of the through hole. The other end of the through hole cooperates with the sealing column, and the other end of the sealing column is provided with a driving device for driving the sealing column to block the through hole, and the driving device is fixed on the casing; a self-control exhaust tire The mold includes the above-mentioned self-control exhaust device, pattern blocks and side plates, the pattern blocks and side plates are provided with exhaust passages, the exhaust passages include exhaust holes and exhaust chambers, and the exhaust The above-mentioned self-control exhaust device is fixedly connected in the chamber, which solves the problem of rubber hair and blockage of the vent hole caused by the vulcanization of rubber products, and further improves the exhaust performance and the service life of the exhaust device.

Description

A self-controlled exhaust device and tire mold

technical field

The utility model relates to the technical field of mold exhaust, in particular to a self-control exhaust device and a tire mold.

Background technique

During the tire vulcanization process, in order to release the air in the mold cavity so that the rubber can be evenly distributed in the mold, the existing tire molds are provided with multiple vent holes on the mold cavity, usually Drilling is used to form the required vent holes.

Since the burr at the end of the hole needs to be trimmed after the drilling process is completed, the mold manufacturing process is increased and the mold manufacturing cost is increased; Exhausted, these air holes are usually located on the top surface of the inner tube of the mold, and penetrate to the outer surface of the mold. Under high pressure and high heat, the unvulcanized raw rubber will be squeezed out of the top cavity of the mold, when the air from the mold After being discharged, the rubber is squeezed into the drilled vent hole to form rubber hairs. When the tire is demolded, some of these rubber hairs may be broken in the mold vent hole. When the tire is vulcanized again, it will hinder the flow of air in the cavity. Discharge, which in turn causes the rubber to not completely fill the entire mold cavity.

To avoid this, tire molds need to be removed from the production line for cleaning. The general cleaning operation is to use a drill to drill out the rubber in each air hole, which is very time-consuming and affects the production efficiency; on the vulcanized tire, most of the rubber wool stands on the tire with demoulding, in order to remove the rubber wool, and It is necessary to set up a special person and corresponding equipment to trim, which not only affects the appearance quality of the tire, but also wastes the rubber material and increases the production cost.

At present, there are some mechanical exhaust and non-removing glue devices installed in the vent hole on the market. The vent hole is generally equipped with an elastic mandrel, and the vent hole is blocked by the mandrel. Because the top of the mandrel is generally It is set as an inverted cone, so it is inevitable that a little glue will enter, and the mechanical structure, with long-term use, the elasticity of the mandrel will also change, and once the mechanical exhaust and glue removal device fails, it will not be able to Immediately spot treatments that affect the final tire appearance.

Utility model content

For the problems in the prior art, the utility model provides a self-control exhaust device and a tire mold, which can solve the rubber hair problem and the blockage of the vent hole caused by the vulcanization of rubber products, and further improve the exhaust performance and the tire mold. The service life of the exhaust device.

In order to achieve the above purpose, the technical solution adopted by the utility model is as follows: a self-control exhaust device, including a casing and a sealing column, a through hole is provided in the middle of the casing, and a detection device is provided at one end of the through hole. The other end of the through hole cooperates with the sealing column, and the other end of the sealing column is provided with a driving device for driving the sealing column to block the through hole.

As a preferred technical solution, the driving device is fixed on the casing, the casing is provided with a controller, the controller is connected to the driving device in signal, and the detection device is connected to the controller in signal.

As a preferred technical solution, a guide hole is provided in the through hole, and the end of the guide hole matched with the sealing column is set as a concave tapered surface; the top end of the sealing column matched with the through hole is set as a sphere or cone.

As a preferred technical solution, several legs are provided at one end of the casing, gaps are provided between the legs, and the detection device is fixed on the legs.

As a preferred technical solution, an elastic insulating tube is provided in the casing, and a control circuit connecting the detection device and the controller is provided in the elastic insulating tube, and the control circuit closely cooperates with the elastic insulating tube.

As a preferred technical solution, a plurality of exhaust holes are provided on the circumferential surface of the casing near the sealing column, and the exhaust holes communicate with the through holes in the casing.

As a preferred technical solution, the detection device is set as a proximity switch.

As a preferred technical solution, the driving device is configured as a solenoid valve.

A self-controlled exhaust tire mold, comprising the above-mentioned self-controlled exhaust device, a pattern block and a side plate, the pattern block and the side plate are provided with an exhaust channel, and the exhaust channel includes an exhaust hole and an exhaust cavity chamber, and the above-mentioned self-control exhaust device is fixedly connected to the exhaust chamber.

As a preferred technical solution, the casing is fixed in the exhaust channel of the mould, and the detection device is at a certain distance from the inner surface of the mould.

As a preferred technical solution, the casing is threadedly connected with the exhaust channel of the mould.

As a preferred technical solution, the self-controlled exhaust device is installed in the middle and rear sections of the exhaust channels in the pattern blocks and side panels.

The benefits of this utility model are:

1. The device realizes the controllability of the exhaust through the electronic control method; the negative pressure generated by the gas in the exhaust hole prevents the glue from entering the exhaust hole, so that there will be no phenomenon of glue hair, and the exhaust device is free from No clogging, no cleaning, prolonging the service life of the device.

2. The special structure that is beneficial to the sealing column and the guide hole ensures the sealing effect, the processing technology is convenient, the action is reliable, and the sealing performance is good.

3. Through the detection device, the information feedback is realized, and the precision of the exhaust process is greatly improved.

4. The elastic insulating tube is used to ensure the sealing effect during the exhaust process.

5. The casing is threadedly connected with the exhaust channel, and the position of the casing in the exhaust channel can be adjusted to ensure the detection distance and make the negative pressure of the gas reach the best state without deglue.

6. The device is not only suitable for tire surface vulcanization, but also suitable for all rubber molds, with a wide range of applications.

Description of drawings

Fig. 1 is a structural representation of a self-control exhaust device;

Fig. 2 is a partial cross-sectional structure schematic diagram of a self-control exhaust tire mold;

Fig. 3 is an enlarged schematic diagram of a partial section structure of a self-controlled exhaust tire mould;

Fig. 4 is a schematic diagram of gas action in a sealed state of a self-control exhaust device;

Fig. 5 is a schematic diagram of the gas movement in the exhaust state of the self-control exhaust device.

In the figure: 1-housing, 2-elastic insulating tube, 3-control circuit, 4-exhaust chamber, 5-controller, 6-drive device, 7-exhaust eye, 8-seal column, 9-pass Hole, 10-guide hole, 11-leg, 12-detection device, 13-exhaust hole, 14-pattern block, 15-side plate.

detailed description

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, a self-control exhaust device includes a casing 1 and a sealing column 8, a through hole 9 is provided in the middle of the casing 1, and the through hole 9 can communicate with the exhaust passage on the mould, so One end of the through hole 9 is provided with a detection device 12, the detection device 12 can be directly fixed on the top of the casing 1, but it cannot block the through hole 9, and the detection device 12 can sense the position of the exhaust channel on the inner surface of the mould. position state, the other end of the through hole 9 cooperates with the sealing column 8, and the other end of the sealing column 8 is provided with a driving device 6 for driving the sealing column 8 to block the through hole 9, and the driving device 6 is fixed on On the casing 1, the driving device 6 drives the sealing column 8 to seal the through hole 9 along the axial direction of the through hole 9 according to the signal fed back by the detection device 12, thereby realizing the controllability of the exhaust.

The casing 1 is provided with a controller 5, the controller 5 is signal-connected to the driving device 6, the detection device 12 is signal-connected to the controller 5, and the detection device 12 transmits the position of the rubber material to the controller 5 in real time After judging and processing the information, the controller 5 controls the driving device 6 to drive the sealing column 8 to seal the through hole 9 .

The through hole 9 is provided with a guide hole 10, and the end of the guide hole 10 cooperating with the sealing column 8 is set as a concave cone surface; the top end of the sealing column 8 cooperating with the through hole 9 is set as a sphere or Cone, the sealing column 8 cooperates with the guide hole 10, the diameter of the guide hole 10 is smaller than the diameter of the sealing column 8, this special structure ensures the sealing effect, the processing technology is convenient, and the sealing process works Reliable, good sealing performance.

Alternatively, one end of the casing 1 is provided with several legs 11, and gaps are provided between the legs 11, and the detection device 12 is fixed on the legs 11, and the detection device 12 is placed on the legs 11, on the one hand to ensure In order to ensure that the detection device 12 can be located at the center of the through hole 9, on the other hand, there is a gap between the legs 11, which does not affect the gas discharge.

The casing 1 is provided with an elastic insulating tube 2, and the elastic insulating tube 2 is provided with a control circuit 3 connecting the detection device 12 and the controller 5, and the control circuit 3 is closely connected to the elastic insulating tube 2. Cooperate, since the detection device 12 and the controller 5 are separated by a certain distance, the control line 3 must pass through the casing 1, the elastic insulating tube 2 protects the control line 3 on the one hand, and on the other hand, the elastic insulating tube 2 can ensure its sealing Reliability, to ensure the pressure state of the chamber blocked by the sealing column 8.

A plurality of exhaust holes 7 are provided on the peripheral surface of the casing 1 near the sealing column 8 , and the exhaust holes 7 communicate with the through holes 9 in the casing 1 .

The driving device 6 is configured as a solenoid valve or an electromagnet.

A self-control exhaust tire mold, including the above-mentioned self-control exhaust device, pattern block 14 and side plate 15, said pattern block 14 and side plate 15 are provided with an exhaust channel, said exhaust channel includes an exhaust hole 13 and an exhaust chamber 4, which is fixedly connected with the above-mentioned self-control exhaust device in the exhaust chamber 4.

The casing 1 is fixed in the exhaust channel of the mould. The optimal choice is that the casing 1 is screwed to the exhaust channel of the mould, and the detection device 12 is at a distance from the inner surface of the mould. 12 is set as a proximity switch, and the self-controlled exhaust device is installed in the middle and rear section of the exhaust passage in the pattern block 14 and the side plate 15 . Ensure that there is a certain space between the detection device 12 and the exhaust channel, so that after the sealing column 8 seals the through hole 9, the cavity between the rubber material and the sealing column 8 will enter the exhaust channel by the rubber material, and the cavity will The continuous compression of the gas can generate a certain negative pressure to prevent the rubber from entering the exhaust channel.

Specific exhaust steps:

During the vulcanization process of the tire, the rubber material is tightly attached to the inner surface of the mold. As the heated rubber material deforms, the gas in the mold will be discharged through the exhaust channel, and the rubber material will gradually approach the exhaust channel opening. When the device 12 detects that the rubber material is close to the discharge port, it sends a signal to the controller 5, and the controller 5 controls the driving device 6 to drive the sealing column 8 to block the through hole 9 in the casing 1. At this time, the sealing column 8 A closed cavity is formed between the rubber and the rubber. The air in the cavity is subjected to the pressure generated by the rubber entering the exhaust channel. It is difficult for the rubber to enter the exhaust channel, and the process of exhausting the exhaust channel without deglue is realized.

It should be understood that these examples are only used to illustrate the utility model and are not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and/or variations to the utility model, and all these equivalent forms also fall within the scope of the appended rights of the application. within the scope of protection defined in the request.

Claims (12)

1. A self-control exhaust device, characterized in that: it includes a casing and a sealing column, a through hole is provided in the middle of the casing, a detection device is provided at one end of the through hole, and the other end of the through hole is connected to the sealing column. The other end of the sealing column is provided with a driving device for driving the sealing column to block the through hole. 2. A self-controlled exhaust device according to claim 1, characterized in that: the driving device is fixed on the casing, the casing is provided with a controller, and the controller is connected to the driving device for signals, The detection device is signally connected with the controller. 3. A self-control exhaust device according to claim 1, characterized in that: a guide hole is provided in the through hole, and the end of the guide hole matched with the sealing column is set as a concave tapered surface; The top end of the sealing column matched with the through hole is set as a sphere or a cone. 4. A self-control exhaust device according to claim 1, characterized in that: one end of the casing is provided with several legs, gaps are provided between the legs, and the detection device is fixed on the legs. 5. A self-control exhaust device according to claim 2, characterized in that: an elastic insulating tube is arranged in the casing, and a control circuit connecting the detection device and the controller is arranged in the elastic insulating tube, The control circuit is closely matched with the elastic insulating tube. 6. A self-control exhaust device according to claim 1, characterized in that: the circumferential surface of the casing close to the sealing column is provided with a number of exhaust holes, and the exhaust holes are connected to the communication channel in the casing. The holes are connected. 7. A self-controlled exhaust device according to claim 1, characterized in that the detection device is set as a proximity switch. 8. A self-control exhaust device according to claim 1, characterized in that: the driving device is a solenoid valve. 9. A self-control venting tire mold, characterized in that it comprises pattern blocks, side plates and the self-control exhaust device as claimed in any one of claims 1 to 8, the pattern blocks and side plates are provided with exhaust The exhaust channel includes an exhaust hole and an exhaust chamber, and the above-mentioned self-control exhaust device is fixedly connected to the exhaust chamber. 10. A self-control venting tire mold according to claim 9, characterized in that: the casing is fixed in the exhaust channel of the mould, and the detection device is at a certain distance from the inner surface of the mould. 11. A self-controlled exhaust tire mold according to claim 9, characterized in that: the self-controlled exhaust device is installed in the middle and rear sections of the exhaust channels in the pattern blocks and side plates. 12. A self-control vent tire mold according to claim 9, characterized in that: the casing is screwed to the vent channel of the mould.