CN215703286U

CN215703286U - Tire mold exhaust structure and tire mold

Info

Publication number: CN215703286U
Application number: CN202121281640.6U
Authority: CN
Inventors: 苏同新; 谢广敏; 王法良; 马鹏飞; 王磊
Original assignee: Himile Mechanical Science and Technology Shandong Co Ltd
Current assignee: Himile Mechanical Science and Technology Shandong Co Ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2022-02-01
Anticipated expiration: 2031-06-08

Abstract

The utility model provides a tire mold exhaust structure and a tire mold, which comprise a pattern block and a shell, wherein the pattern block is fixedly arranged on the inner side of the shell, the pattern block is provided with a first exhaust channel, and an exhaust device is embedded at one end of the first exhaust channel, which is close to the inner edge of the pattern block, and the tire mold exhaust structure is characterized in that: the shell is provided with a second exhaust passage, and the first exhaust passage is communicated with the second exhaust passage. The utility model optimizes the existing exhaust structure, can realize replacement of the air hole sleeve without disassembling the steel shell and the pattern block, and reduces the pressure of the die during exhaust.

Description

Tire mold exhaust structure and tire mold

Technical Field

The utility model belongs to the technical field of tire molds, and particularly relates to a tire mold exhaust structure and a tire mold.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The air generated during the vulcanization of the tire is discharged through the air hole sleeve, and the air hole sleeve is embedded in the air vent penetrating through the pattern block of the mold. In order to protect the pattern blocks from being damaged when the tire is vulcanized, the service life of the pattern blocks is prolonged, and the pattern blocks of ladle aluminum and embedded aluminum structures appear in the industry. There are some drawbacks to the replacement of the air cap for the two configurations of the mold. As shown in figure 1, in the existing exhaust structure, an air hole bottom hole is processed on a pattern block, a drill bit through air holes are generally used after the air holes are blocked, but the drill bit is small and is often easily broken in an air hole sleeve, the air hole sleeve needs to be replaced by detaching a steel shell and the pattern block, and the production efficiency of a tire is seriously influenced. In addition, the pattern blocks and the steel shell must be disassembled when the air hole sleeves are replaced aiming at the pattern blocks of the segmented mold, and the air hole sleeves are inconvenient to throw out from the back surfaces of the pattern blocks by using steel bars when the air hole sleeves are replaced.

Disclosure of Invention

The utility model aims to solve the problems and provides a tire mold exhaust structure and a tire mold.

According to some embodiments, the utility model adopts the following technical scheme:

in a first aspect of the utility model, the tire mold exhaust structure comprises a pattern block and a shell, wherein the pattern block is fixedly arranged on the inner side of the shell, the pattern block is provided with a first exhaust channel, an exhaust device is embedded in one end, close to the inner edge of the pattern block, of the first exhaust channel, the shell is provided with a second exhaust channel, and the first exhaust channel is communicated with the second exhaust channel.

In an alternative embodiment, the vent is a vent sleeve or a vent plug.

In an alternative embodiment, the second exhaust passage has a pore size in the range of 3 to 5mm, and the first exhaust passage has a pore size in the range of 1.5 to 4 mm;

preferably, the second exhaust passage has a larger pore diameter than the first exhaust passage.

As an alternative embodiment, at the communication position of the first exhaust passage and the second exhaust passage, grooves are arranged on the blocks and/or the shell; the groove is a chamfer or a counter bore; the aperture of the groove is larger than the diameter of the first exhaust passage.

As an alternative embodiment, a positioning mechanism is provided on the housing or the block.

As an alternative embodiment, the positioning mechanism is designed to be a positioning groove on the steel shell and the pattern block, and the positioning pin is used for positioning the shell and the pattern block by connecting the positioning groove.

As a further limitation, the block material is aluminum, and the shell material is steel.

In a second aspect of the present invention, a tire mold is provided, which includes the tire mold venting structure described above.

In a third aspect of the present invention, there is provided a method for detaching the air vent sleeve of the tire mold or the air vent structure, including the steps of: the second exhaust passage is stretched from the back of the shell to the first exhaust passage by utilizing the object with the diameter smaller than the inner diameter of the first exhaust passage and the second exhaust passage and the length larger than the total length of the first exhaust passage and the second exhaust passage of the object, and the air hole sleeve is directly thrown out.

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

according to the utility model, the corresponding positions between the pattern blocks and the steel shell are communicated to form the communicated exhaust channel, the air hole sleeve can be directly thrown from the back of the pattern blocks, the assembly time is reduced, the defect that the air hole sleeve is inconvenient to replace when a tire mold is vulcanized is solved, and the air hole sleeve can be quickly and conveniently replaced on the premise of not influencing the production efficiency of the tire.

In order to prevent the problem that the pattern blocks and the steel shell are easy to generate deviation due to technical limitations of installation accuracy, installation difficulty and the like, the groove with the conical structure is arranged at the corresponding position of the pattern blocks and the steel shell at the communication position of the exhaust channel, and the rodlike object can be smoothly used for ejecting air out of the hole sleeve from the back of the pattern blocks.

According to the utility model, the positioning mechanism is arranged, so that the smooth connection between the steel shell and the pattern block through the positioning pin is realized, and the installation precision of the connected exhaust channel is ensured.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.

FIG. 1 is a schematic cross-sectional view of a venting channel of a prior art aluminum-clad steel mold;

FIG. 2 is a schematic view of a tire mold with a groove in use;

FIG. 3 is an enlarged view of FIG. 2 at D;

FIG. 4 is an enlarged view of D of FIG. 2, taken deep into the rod 5;

FIG. 5 is an enlarged view at E of FIG. 2;

FIG. 6 is an enlarged view taken down into the rod 5 at E in FIG. 2;

FIG. 7 is a schematic view showing a state of use of the tire mold in which the grooves are only provided on the blocks;

FIG. 8 is an enlarged view at F of FIG. 7;

FIG. 9 is an enlarged view taken down into the rod 5 at F in FIG. 7;

FIG. 10 is an enlarged view at G of FIG. 7;

FIG. 11 is an enlarged view of the rod 5 at G of FIG. 7

Wherein: 1. the pattern block comprises a pattern block body, 2, a steel shell, 3, a connecting piece, 4, an air hole sleeve, 5, a rod-shaped object, 6, a positioning structure, 7, a second exhaust channel, 8 and a first exhaust channel, wherein A is not communicated.

The specific implementation mode is as follows:

the utility model is further described with reference to the following figures and examples.

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the utility model as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only terms of relationships determined for convenience of describing structural relationships of the parts or elements of the present invention, and are not intended to refer to any parts or elements of the present invention, and are not to be construed as limiting the present invention.

In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be determined according to specific situations by persons skilled in the relevant scientific or technical field, and are not to be construed as limiting the present invention.

As shown in fig. 1, in the exhaust structure of the existing mold, when the air hole bottom hole is processed on the block 1, the exhaust structure is not opened together with the steel shell 2. The steel shell 2 wraps or semi-wraps the pattern block 1, although the service life of the pattern block 1 can be effectively prolonged, the air hole is easy to block, and when the air hole sleeve 4 needs to be replaced, the pattern block 1 and the steel shell 2 need to be detached, and the process is complex.

The present invention has been made to solve the above problems, and provides an exhaust structure. When the air holes of the pattern blocks 1 are opened, the air holes are opened together with the steel shell 2, and the aperture phi A of the air holes is ensured to be 3-5 mm. When the pore cover 4 is disassembled, the rodlike object 5 with the diameter not larger than 3mm can be used, so that the steel shell 2 and the pattern block 1 can be smoothly run through, and the pore cover 4 is disassembled from the back of the die body.

The rod 5 referred to in the present invention includes, but is not limited to, a steel rod, a drill bit, a hard iron wire or a steel wire.

After the steel shell 2 and the pattern block 1 are punched through, the problem that an exhaust duct is misplaced after a mold is reassembled is possible, in order to solve the problem of air hole misplacement caused by mold assembly, in some embodiments, grooves are respectively machined in the pattern block 1 and the steel shell 2, and the shape of each groove can be designed to be a chamfer angle or a counter bore.

In order to enable the rod-shaped object 5 to smoothly penetrate through an exhaust duct of the mold and remove the air hole sleeve 4 from the back of the mold body, the pattern block and the steel shell are accurately positioned through positioning pins.

The range of the exhaust aperture of the die is generally 1.5-4.0mm, and the design of the through-hole channel can be commonly used in the aluminum-inlaid two half die and the ladle aluminum segmented die structure. The steel shell 2 is communicated with the pattern block 1 exhaust hole to be connected, so that the replacement of the air hole sleeve 4 can be realized without disassembling the steel shell 2 and the pattern block 1.

In order to make the technical solutions of the present invention more clearly understood by those skilled in the art, several specific embodiments of the present invention are described below in different embodiments.

Example one

The corresponding positions of the pattern blocks 1 and the steel shell 2 are processed according to the same processing standard during processing. In the present embodiment, the exhaust hole diameter can be formed by punching the block 1 through the air hole and also punching the steel casing 2 through the hole by a five-axis punching machine, and in the present embodiment, the second exhaust hole diameter Φ a is 3mm and the first exhaust hole diameter Φ R is 3 mm.

Example two

When the mold is processed, processing reference lines are respectively arranged on the pattern block 1 and the steel shell 2, and when the pattern block 1 and the steel shell 2 are processed, the pattern block 1 and the steel shell 2 are respectively processed according to a determined processing reference.

The pattern block 1 is punched through by a punching machine tool, and the steel shell 2 is also punched through to form a first exhaust channel 8 and a second exhaust channel 7 respectively, wherein the second exhaust aperture phi A is 3.5mm, and the first exhaust aperture phi R is 2 mm.

In order to prevent dislocation of the first exhaust channel 8 and the second exhaust channel 7 after assembly and further prevent the steel bar from penetrating from the back of the steel shell 2 when the air hole sleeve 4 is disassembled, the design of the groove is carried out on the pattern block 1 and the steel shell 2, and the groove is a counter bore.

Meanwhile, in order to prevent the pattern blocks 1 and the steel shell 2 from being installed and dislocated, the steel shell 2 and the pattern blocks 1 are provided with limiting grooves, and the pattern blocks and the steel shell are positioned through positioning pins.

EXAMPLE III

When the mold is processed, processing reference lines are respectively arranged on the pattern block 1 and the steel shell 2, and the pattern block 1 and the steel shell 2 are respectively processed according to a determined reference during processing.

And (3) punching the pattern block 1 air hole through a punching machine tool and simultaneously punching the steel shell 2 through, wherein the second exhaust aperture phi A is 5mm, and the first exhaust aperture phi R is 4 mm. In order to prevent the dislocation of the exhaust duct after assembly from causing the steel bar to be incapable of penetrating through from the back of the steel shell 2 when the exhaust duct sleeve 4 is disassembled, the design of a groove is carried out on the pattern block 1, and the groove is a chamfer. Thereby realizing the design of the tire mold exhaust passage for quickly replacing the air hole sleeve 4.

Example four

And (3) punching the pattern block 1 air hole through a punching machine tool and simultaneously punching the steel shell 2 through, wherein the second exhaust aperture phi A is 4mm, and the first exhaust aperture phi R is 1.5 mm. In order to prevent the dislocation of the exhaust duct after assembly from causing the steel bar to be unable to run through from the back of the steel shell 2 when the air hole sleeve 4 is disassembled, the design of a groove is carried out on the steel shell 2, and the groove is a counter bore. Thereby realizing the design of the tire mold exhaust passage for quickly replacing the air hole sleeve 4.

EXAMPLE five

As shown in fig. 2, the block 1 is provided with a first exhaust channel 8, the steel shell 2 is provided with a second exhaust channel 7, and the inner side of the first exhaust channel 8 is provided with an air hole sleeve 4. The first exhaust channel 8 may be an air hole through the block 1 and the second exhaust channel 7 may be an air hole through the steel casing 2. In this embodiment, the apertures of the two air holes are consistent, which facilitates the processing.

Of course, in other embodiments, the pore sizes of the two pores may not be the same.

In this embodiment, the first exhaust passage 8 and the second exhaust passage 7 may have a certain inclination angle, and the inclination angles of the two exhaust passages are the same, so that the rod-shaped objects 5 can pass through the exhaust passages.

As shown in fig. 3, a part of the junction between the first exhaust channel 8 and the second exhaust channel 7 is provided with a chamfer, the bore diameter of the chamfer gradually decreases from the junction to the block 1/the steel shell 2, and in the present embodiment, the angle between the expansion lines of the edges of the chamfer is 20 °. As shown in fig. 4, the rod-like object 5 can be smoothly extended out of the steel shell 2 by the chamfer and then guided into the first exhaust channel 8 by the other chamfer. Of course, the smallest diameter of the chamfer coincides with the bore diameter of the first exhaust passage 8/second exhaust passage 7.

As shown in fig. 5, a counter bore is provided at the joint of a part of the first exhaust channel 8 and the second exhaust channel 7, the aperture of the counter bore is larger than the aperture of the first exhaust channel 8/the second exhaust channel 7, and the angle between two extension lines of the counter bore is controlled to be 90-130 °. In the present embodiment, it is 90 °. The rod-shaped objects 5 can easily pass through the first exhaust channel 8 and the second exhaust channel 7 and the connection part thereof by the design of the counter bore as shown in fig. 6.

The dislocation distance between the pattern block 1 and the steel shell 2 is controlled within 2mm, and the optimal dislocation distance range is 0.1-1.5 mm.

In this embodiment, the steel casing 2 is provided with a pin hole, the pattern block 1 is provided with a positioning pin, and the pin hole and the positioning pin are matched in position. So as to realize coarse positioning before the connecting bolt is connected.

Of course, the above embodiments are only examples, and in other embodiments, various parameter values such as the exhaust aperture, the counterbore aperture and the angle may be adjusted.

EXAMPLE six

As shown in fig. 7, the block 1 is provided with a first exhaust channel 8, the steel shell 2 is provided with a second exhaust channel 7, and the inner side of the first exhaust channel 8 is provided with an air hole sleeve 4. The first exhaust channel 8 may be an air hole through the block 1 and the second exhaust channel 7 may be an air hole through the steel casing 2. In the present embodiment, the pore diameters of the two pores do not coincide. The diameter of the second exhaust passage 7 is slightly larger than the diameter of the first exhaust passage 8.

In this embodiment, the first exhaust passage 8 and the second exhaust passage 7 may have a certain inclination angle, and the inclination angles of the two exhaust passages are the same or similar, so as to facilitate the rod-shaped objects 5 to pass through.

The steel shell 2 and the pattern block 1 are connected through a connecting piece 3, and in the embodiment, the connecting piece 3 is a connecting bolt.

As shown in fig. 8, a part of the junction between the first exhaust channel 8 and the second exhaust channel 7 is provided with a chamfer converging toward the first exhaust channel 8, i.e. the bore diameter of the chamfer gradually decreases from the steel shell 2 to the block 1, and in the present embodiment, the angle between the edge expansion lines of the chamfer is 20 °. As shown in fig. 9, the rod-like object 5 can smoothly extend out of the steel shell 2 by the design of the second exhaust channel 7 with a wider bore diameter, and then is guided into the first exhaust channel 8 by the tapered chamfer. Of course, the smallest diameter of the chamfer coincides with the bore diameter of the first exhaust duct 8 or is slightly larger than the bore diameter of the first exhaust duct 8.

As shown in fig. 10, a counter bore is provided at a connection portion of a part of the first exhaust passage 8 and the second exhaust passage 7, and an aperture of an upper end of the counter bore is similar to an aperture of the second exhaust passage 7, and may be slightly larger than the aperture of the second exhaust passage 7, certainly larger than the aperture of the first exhaust passage 8. The aperture of the lower end of the counter bore is gradually reduced or reduced in a step manner. The angle between the two extension lines of the control counter bore ranges from 90 degrees to 130 degrees. In the present embodiment, it is 90 °. The rod-shaped objects 5 can easily pass through the first exhaust channel 8 and the second exhaust channel 7 and the connection part thereof by the design of the counter bore as shown in fig. 11.

EXAMPLE seven

A tire mold is provided with any one of the exhaust structures of the above embodiments.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims

1. The utility model provides a tire mold exhaust structure, includes decorative pattern piece and casing, decorative pattern piece fixed mounting is inboard at the casing, the decorative pattern piece is provided with first exhaust passage, first exhaust passage is close to the one end on edge in the decorative pattern piece is inlayed and is had exhaust apparatus, characterized by: the shell is provided with a second exhaust passage, and the first exhaust passage is communicated with the second exhaust passage.

2. A tire mold vent structure as in claim 1, wherein: the exhaust device is an air hole sleeve or an exhaust plug.

3. A tire mold vent structure as in claim 2, wherein said second vent passage has a hole diameter in the range of 3 to 5mm, and said first vent passage has a hole diameter in the range of 1.5 to 4 mm.

4. A tire mold vent structure as in claim 1, wherein: grooves are formed in the communicating part of the first exhaust channel and the second exhaust channel, and the pattern blocks and/or the shell.

5. A tire mold vent structure as in claim 4, wherein: the groove is a chamfer or a counter bore.

6. A tire mold vent structure as in claim 4, wherein: the aperture of the groove is larger than the diameter of the first exhaust passage.

7. A tire mold vent structure as in claim 1, wherein: and a positioning mechanism is arranged between the shell and the pattern blocks.

8. A tire mold vent structure as in claim 7, wherein: the positioning mechanism is a positioning groove arranged on the steel shell and the pattern block, and two ends of the positioning pin are embedded into the positioning groove.

9. A tire mold vent structure as in claim 1, wherein: the pattern block is made of aluminum, and the shell is made of steel.

10. A tire mold is characterized in that: comprising the tire mold vent structure of any one of claims 1-9.