CN109049779B

CN109049779B - Tire mold

Info

Publication number: CN109049779B
Application number: CN201810910815.1A
Authority: CN
Inventors: 刘志兰; 张伟; 赵阳; 杜平; 于泳; 赵鹏
Original assignee: Himile Mechanical Science and Technology Shandong Co Ltd
Current assignee: Himile Mechanical Science and Technology Shandong Co Ltd
Priority date: 2018-08-10
Filing date: 2018-08-10
Publication date: 2020-05-22
Anticipated expiration: 2038-08-10
Also published as: CN109049779A

Abstract

The invention relates to the technical field of tire manufacturing, and aims to provide a tire mold. The invention provides a tire mold, which comprises a mold shell component and a cavity component arranged in the mold shell component. The cavity component comprises an upper side plate and a plurality of pattern blocks, at least one of the pattern blocks or the upper side plate is provided with a temperature measuring hole, and a temperature measuring element is arranged in the temperature measuring hole. The tire mold is provided with a wire passing groove communicated with the temperature measuring hole, and the temperature measuring wire of the temperature measuring element passes through the wire passing groove and is led out of the cavity assembly. The temperature measuring wire routing mode is reasonably set by arranging the wire passing groove for leading out the temperature measuring wire, so that the temperature measuring wire is prevented from influencing the work of a tire mold, and the wiring and the disconnection are convenient; meanwhile, the problem that the temperature measuring wire is extruded or damaged in the using process is avoided, and therefore the service life of the tire mold is prolonged.

Description

Tire mold

Technical Field

The invention relates to the technical field of tire manufacturing, in particular to a tire mold.

Background

When the existing tire is produced, the temperature and time for vulcanizing the tire need to be strictly controlled, the vulcanizing temperature of a green tire blank of the tire is not well controlled, the tire is scrapped, and the quality qualification rate of the tire is influenced. The vulcanization temperature is low, under the same time, under-sulfur can be generated, the rubber of the under-sulfur tire has insufficient reaction and poor physical performance, the tire can be sticky and cannot be used when the under-sulfur is serious, the abrasion resistance of the tire can be influenced when the under-sulfur is light, the abrasion resistance is poor, and the tire is easy to delaminate and damage; the vulcanization temperature is high, and the over-vulcanization phenomenon can be generated under the same time pressure, and the over-vulcanized tire rubber material can be brittle and has the same poor wear resistance and the phenomena of chipping and chipping during use.

The existing tire mold does not basically have the function of measuring the temperature of the mold, even if the existing tire mold only reserves the wire passing hole for measuring the temperature of one tire on the mold, when the temperature of the tire is detected in the wire passing hole mode, the temperature detection piece needs to be inserted into the tire, and the surface of the tire can be damaged. The mold can only be used for measuring the temperature, and cannot be used for vulcanizing a normal tire after the temperature measurement is finished. And the arrangement of the temperature measuring lines does not need to consider the non-temperature measuring working condition of the die and the influence of the opening and closing action of the die on the line.

Disclosure of Invention

An object of the present invention is to provide a tire mold which can avoid the problem of friction damage or bruise of a temperature measuring line during opening and closing of the tire mold, and at the same time can facilitate wiring and disconnection.

The embodiment of the invention is realized by the following steps:

a tire mold comprises a mold shell component, a temperature measuring element and a cavity component arranged in the mold shell component; the cavity component comprises an upper side plate and a plurality of pattern blocks arranged along the circumferential direction of the upper side plate; at least one of the pattern blocks or the upper side plate is provided with a temperature measuring hole, and the temperature measuring element is arranged in the temperature measuring hole; the tire mold is provided with a wire passing groove communicated with the temperature measuring hole, and the wire passing groove is used for guiding the temperature measuring line of the temperature measuring element out of the cavity assembly.

In one embodiment of the invention:

a first wire passing gap is formed between two adjacent sliding blocks of the formwork component, and the wire passing groove is communicated with the first wire passing gap; the temperature measuring line is led out through the line passing groove and the first line passing gap.

In one embodiment of the invention:

a second wire passing gap is formed between the guide ring and the base of the formwork component and is communicated with the first wire passing gap; the temperature measuring line passes through the line passing groove, the first line passing gap and the second line passing gap to be led out of the formwork assembly.

In one embodiment of the invention:

the tire mold further comprises a first temperature measuring line fixing device for fixing a temperature measuring line, and the first temperature measuring line fixing device is fixedly connected to the lower end face of the guide ring of the mold shell assembly.

In one embodiment of the invention:

when the tire mold is in a mold closing state, the lower end surface is in a first preset position, and when the tire mold is in a mold opening state, the lower end surface is in a second preset position;

the tire mold also comprises a second temperature measuring line fixing device fixedly connected to the slide block vertical surface of the mold shell component; the wire outlet end of the second temperature measuring wire fixing device is located on an extension surface which is parallel to the lower end surface and located between the first preset position and the second preset position.

In one embodiment of the invention:

the tire mold further comprises a fourth temperature measuring line fixing device and a fifth temperature measuring line fixing device; the fourth temperature measuring line fixing device is fixedly connected to the vertical surface of the sliding block; the fifth temperature measuring line fixing device is fixedly connected to the upper cover of the formwork component; when the tire mold is in a mold closing state, the wire outlet end of the fifth temperature measuring wire fixing device is located at a third preset position; when the tire mold is in a mold opening state, the wire outlet end of the fifth temperature measuring wire fixing device is in a fourth preset position; and a straight line, parallel to the central line of the mold, where the wire inlet end of the fourth temperature measuring wire fixing device is located between the third preset position and the fourth preset position.

In one embodiment of the invention:

the first temperature measuring wire fixing device comprises a wire pressing clamp; the wire pressing clamp comprises a connecting part and a wire pressing part fixedly connected to the connecting part; the connecting part is used for being fixedly connected with the guide ring; a pressure wire hole for the temperature measuring wire to penetrate is formed between the pressure wire part and the guide ring.

In one embodiment of the invention:

the wire passing groove comprises a first wire passing groove arranged on a sliding block and/or a pattern block of the formwork component, and the first wire passing groove is arranged along the circumferential direction of the pattern block.

And/or the upper side plate is provided with a temperature measuring hole, the wire passing groove comprises a second wire passing groove arranged on the upper side plate and/or the upper cover of the formwork assembly, and the second wire passing groove extends along the radial direction of the upper side plate.

In one embodiment of the invention:

the pattern blocks comprise an upper end part, a middle part and a lower end part which are sequentially connected along the axial direction of the tire mold, and at least one of the upper end part, the middle part and the lower end part is provided with a temperature measuring hole.

In one embodiment of the invention:

the temperature sensing element comprises a thermocouple or a thermal resistor.

And/or the lower side plate of the cavity component is provided with a temperature measuring hole.

The embodiment of the invention has the beneficial effects that:

embodiments of the present invention provide a tire mold that includes a formwork assembly and a cavity assembly disposed within the formwork assembly. The cavity component comprises an upper side plate and a plurality of pattern blocks arranged along the circumferential direction of the upper side plate, at least one of the pattern blocks or the upper side plate is provided with temperature measuring holes, and temperature measuring elements are arranged in the temperature measuring holes. The tire mold is provided with a wire passing groove communicated with the temperature measuring hole, and the temperature measuring wire of the temperature measuring element passes through the wire passing groove and is led out of the cavity assembly. According to the tire mold provided by the embodiment of the invention, the wire passing grooves for leading out the temperature measuring wires are formed, so that the wiring mode of the temperature measuring wires is reasonably set, the influence of the temperature measuring wires on the work of the tire mold is avoided, and the wiring and the disconnection are convenient; meanwhile, the problem that the temperature measuring wire is extruded or damaged in the using process is avoided, and therefore the service life of the tire mold is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of the overall structure of a tire mold provided in example 1 of the present invention;

FIG. 2 is a schematic view of a temperature measurement principle of a tire mold according to embodiment 1 of the present invention;

FIG. 3 is a schematic view of a partial structure of a tire mold according to example 1 of the present invention;

FIG. 4 is a schematic structural view of an upper side plate in a tire mold according to example 1 of the present invention;

FIG. 5 is a schematic structural view of a clamp in a tire mold according to example 1 of the present invention;

fig. 6 is a schematic view of the overall structure of a tire mold provided in embodiment 1 of the present invention when the mold is opened;

FIG. 7 is a schematic structural view of an upper cover in a tire mold according to example 1 of the present invention;

fig. 8 is a schematic structural view of a lower side plate in the tire mold provided in embodiment 1 of the present invention.

Icon: 010-a tire mold; 100-a cavity assembly; 110-pattern blocks; 120-lower side plate; 130-upper side plate; 140-steel ring; 150-temperature measuring hole; 151-first pattern block temperature measurement hole; 152-second pattern block temperature measuring hole; 153-third pattern block temperature measurement hole; 154-first upper side plate temperature measurement hole; 155-a second upper side plate temperature measurement hole; 156-third upper side plate temperature measurement hole; 200-a formwork assembly; 210-a slider; 220-a guide ring; 221-lower end face; 230-a base; 240-upper cover; 241-a wear plate; 310-a first wire-passing trough; 320-a second wire-passing trough; 330-a third wire trough; 340-a first wire-passing gap; 341-second temperature measuring line fixing device; 350-a second wire-passing gap; 351-a first temperature measuring line fixing device; 360-a third temperature measuring line fixing device; 370-a crimping clamp; 371-connecting part; 372-a crimping part; 380-a fourth temperature measuring line fixing device; 390-fifth temperature sensing line fixing means; 410-a temperature measuring element; 420-temperature recorder; 430-temperature measurement line.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that the terms "first", "second", and the like are used for distinguishing the description, and are not to be construed as indicating or implying relative importance.

Example 1

Fig. 1 is a schematic view of the overall structure of a tire mold 010 provided in this embodiment. Referring to fig. 1, the present embodiment provides a tire mold 010, which includes a mold shell assembly 200 and a cavity assembly 100 disposed in the mold shell assembly 200. The cavity assembly 100 includes an upper side plate 130 and a plurality of blocks 110 arranged along the circumferential direction of the upper side plate 130, at least one of the blocks 110 or the upper side plate 130 is provided with a temperature measuring hole 150, and a temperature measuring element 410 is arranged in the temperature measuring hole 150. The tire mold 010 is provided with a wire through groove communicated with the temperature measuring hole 150, and the temperature measuring wire 430 of the temperature measuring element 410 passes through the wire through groove and is led out of the cavity component 100, so that the temperature of the cavity surface of the tire mold 010 is monitored in the preheating and vulcanizing processes of the tire mold 010; moreover, the wiring mode of the temperature measuring wires 430 is reasonably set by arranging the wire passing grooves for leading out the temperature measuring wires 430, so that the temperature measuring wires 430 are prevented from influencing the work of the tire mold 010, and the wiring and the disconnection are convenient; meanwhile, the problem that the temperature measuring wire 430 is extruded or damaged in the using process is avoided, so that the service life of the tire mold 010 is prolonged.

The tire mold 010 provided in the present embodiment is further explained below:

referring to fig. 1, in the present embodiment, the formwork assembly 200 includes a base 230 and an upper cover 240 disposed at an interval, the cavity assembly 100 includes an upper side plate 130 and a lower side plate 120 disposed at an interval, and two steel rings 140, the lower side plate 120 is fixedly connected to an upper end surface of the base 230, the upper side plate 130 is fixedly connected to a lower end surface of the upper cover 240, the two steel rings 140 are respectively fixedly connected to a radial inner side of the upper side plate 130 and the lower side plate 120, and a sidewall shaping vulcanization surface of the upper side plate 120 and a sidewall shaping vulcanization surface of the lower side plate 120 are respectively in smooth transition connection with a bead heel shaping vulcanization surface of the two steel. A plurality of blocks 110 are provided on the radially outer side of the upper side plate 130 in the circumferential direction of the upper side plate 130, and when the tire mold 010 is in a mold-closed state, the plurality of blocks 110 can form an annular rim. The formwork assembly 200 further includes sliding blocks 210 and guide rings 220, the sliding blocks 210 are respectively fixedly connected to the radial outer sides of the pattern blocks 110, the sliding blocks 210 and the pattern blocks 110 are arranged in a one-to-one correspondence, and a first thread passing gap 340 is formed between two adjacent sliding blocks 210. The gaps between the adjacent sliders 210 are used for wiring, so that the wiring path is more reasonable, and the problems that the temperature measuring line 430 is damaged by extrusion, broken and the like can be avoided. The guide ring 220 is slidably connected to the outer side of the slider 210, the slider 210 is driven by the up-and-down movement of the guide ring 220 to reciprocate along the radial direction, so that the mold opening and closing of the tire mold 010 are realized, a second wire passing gap 350 is formed between the guide ring 220 and the base 230, and the second wire passing gap 350 is communicated with the first wire passing gap 340. A wear-resisting plate is arranged between the sliding block 210 and the base 230 and fixedly connected to the upper end face of the base 230; a wear plate 241 is also disposed between the slider 210 and the upper cover 240, and the wear plate 241 is fixedly connected to the lower end surface of the upper cover 240. When the tire mold 010 is in a mold closing state, the lower end surface 221 of the guide ring 220 moves downwards to a first preset position, and at the moment, the tire top shaping vulcanization surface and the tire side shaping vulcanization surface of the pattern block 110 are in smooth transition connection; when the tire mold 010 is in the mold opening state, the lower end surface 221 of the guide ring 220 moves upward to a second preset position, and at this time, the tire top shaping vulcanization surface is separated from the tire side shaping vulcanization surface. The gap of the tire mold 010 itself is utilized for reasonable wiring, damage to the tire mold 010 is small, and the problem that the lead is extruded and broken can be avoided. Meanwhile, wiring and disconnection can be more conveniently carried out. It should be noted that the wear plate 241 in this embodiment is a wear reducing plate commonly known in the art.

Fig. 2 is a schematic view of a temperature measurement principle of the tire mold 010 provided in this embodiment. Referring to fig. 2, in the present embodiment, the tire mold 010 further includes a temperature recorder 420, and the temperature recorder 420 and the temperature measurement principle 410 are electrically connected through a temperature measurement line 430. The temperature measuring element 410 is arranged in the temperature measuring hole 150, the temperature measuring line 430 is led out of the tire mold 010 through the first wire passing gap 340 and the second wire passing gap 350 in sequence, and is electrically connected with the temperature recorder 420 arranged outside the tire mold 010. The temperature data measured by the temperature measuring element 410 is converted into an electrical signal and then transmitted to the temperature recorder 420 through the temperature measuring line 430, the temperature recorder 420 processes the obtained signal to obtain a temperature change curve along with time, and the temperature change curve along with time is displayed through a display screen on the temperature recorder 420, so that the temperature recorder 420 is arranged outside the formwork assembly 200, and a user can observe temperature change in real time. A temperature measuring line 430 of a temperature measuring element 410 passes through the cavity assembly 100 and the formwork assembly 200, and is electrically connected to a temperature recorder 420 outside the formwork assembly 200.

Fig. 3 is a partial structural schematic view of the tire mold 010 provided in this embodiment. Referring to fig. 1 and 3, in the present embodiment, the block 110 has a tire-top-shaped vulcanized surface, the temperature measurement hole 150 includes a block temperature measurement hole opened on the back surface of the block 110 (i.e., the surface of the block 110 opposite to the tire-top-shaped vulcanized surface), and the hole bottom of the temperature measurement hole 150 is close to the tire-top-shaped vulcanized surface, so that the temperature of the tire side can be detected more accurately. The wire passing groove comprises a first wire passing groove 310 arranged on the back surface of the pattern block 110, and the first wire passing groove 310 communicates the pattern block temperature measuring hole with the first wire passing gap 340. The temperature measuring element 410 is arranged in the pattern block temperature measuring hole, and a temperature measuring line 430 of the temperature measuring element 410 sequentially passes through the first line passing groove 310, the first line passing gap 340 and the second line passing gap 350, so that the formwork assembly 200 is led out. Further, in order to facilitate the processing of the first string-passing groove 310, the first string-passing groove 310 extends in the circumferential direction of the block 110. Specifically, in the present embodiment, the first wire passing groove 310 is a rectangular groove, and it is understood that in other embodiments, the first wire passing groove 310 may be a groove with other shapes, such as a semicircular shape.

It should be noted that, in the present embodiment, the first wire-passing groove 310 is formed on the back surface of the block 110, it can be understood that, in other embodiments, the first wire-passing groove 310 may be formed on a matching surface between the slider 210 and the block 110 according to a user's requirement, so as to communicate the block temperature measurement hole with the first wire-passing gap 340, and the temperature measurement line 430 can be led out through the first wire-passing groove 310.

Further, the block 110 includes a lower end portion, a middle portion, and an upper end portion sequentially connected in the axial direction. A first pattern block temperature measuring hole 151 is formed in the lower end part, and specifically, the first pattern block temperature measuring hole 151 is formed in a position close to the matching surface of the pattern block 110 and the lower side plate 120; the upper end part is provided with a third pattern block temperature measuring hole 153, and specifically, the third pattern block temperature measuring hole 153 is arranged at a position close to the matching surface of the pattern block 110 and the upper side plate 130; the middle part is provided with a second pattern block temperature measuring hole 152, and specifically, the second pattern block temperature measuring hole 152 is arranged between the first pattern block temperature measuring hole 151 and the third pattern block temperature measuring hole 153.

Meanwhile, in order to reasonably lead out the temperature measuring lines 430 of the temperature measuring elements 410 in the first block temperature measuring hole 151, the second block temperature measuring hole 152 and the third block temperature measuring hole 153, the number of the first wire passing grooves 310 is three, and the three first wire passing grooves 310 respectively communicate the first block temperature measuring hole 151, the second block temperature measuring hole 152 and the third block temperature measuring hole 153 with the first wire passing gap 340.

Fig. 4 is a schematic structural diagram of the upper plate 130 in the tire mold 010 according to this embodiment. Referring to fig. 4, in the embodiment, the temperature measuring holes 150 include upper side plate temperature measuring holes formed in the upper side plate 130, the back surface of the upper side plate 130 is formed with second wire passing grooves 320 communicated with the upper side plate temperature measuring holes, the wear plate 241 has third wire passing grooves 330 communicating the second wire passing grooves 320 with the first wire passing gaps 340, and specifically, the third wire passing grooves 330 are gaps between adjacent wear plates 241. It should be noted that in the present embodiment, the wear plates 241 are disposed in separate blocks, so that the gap between adjacent wear plates 241 can be used as the third wire passing groove 330, and it should be understood that in other embodiments, if the wear plates 241 are in a full-circle structure, the third wire passing groove 330 can also be formed by additionally forming a groove. A temperature measuring element 410 is arranged in the temperature measuring hole of the upper side plate, and a temperature measuring line 430 of the temperature measuring element 410 sequentially passes through the second wire passing groove 320, the third wire passing groove 330, the first wire passing gap 340 and the second wire passing gap 350 to be led out of the formwork assembly 200 and connected with a temperature recorder 420 outside the formwork assembly 200. Preferably, the second wire passing groove 320 is disposed in a radial direction of the upper side plate 130. Specifically, in the present embodiment, the second wire passing groove 320 is a rectangular groove, and it can be understood that in other embodiments, the second wire passing groove 320 may be a groove with other shapes, such as a semicircular shape.

It should be noted that, in this embodiment, the second wire passing groove 320 is formed in the back surface of the upper side plate 130, it can be understood that, in other embodiments, according to the requirement of a user, the second wire passing groove 320 may be formed in the matching surface of the upper cover 240 for matching with the upper side plate 130, so that the upper side plate temperature measuring hole 350 is communicated with the first wire passing gap 340, and the temperature measuring wire 430 is led out through the second wire passing groove 320.

Preferably, three upper side plate temperature measuring holes are arranged at intervals along the radial direction of the upper side plate 130, which are a first upper side plate temperature measuring hole 154, a second upper side plate temperature measuring hole 155 and a third upper side plate temperature measuring hole 156. The first upper side plate temperature measuring hole 154 is formed at the thickest part of the upper side plate 130 at one end of the upper side plate 130 close to the steel ring 140; the second upper side plate temperature measuring hole 155 is formed at the thinnest part of the upper side plate 130 in the middle of the upper side plate 130; the third upper side plate temperature measuring hole 156 is opened at the thickest part of the upper side plate 130 at one end of the upper side plate 130 close to the pattern block 110.

Fig. 5 is a schematic structural diagram of the clamp 370 in the tire mold 010 provided in this embodiment. Referring to fig. 5, in the present embodiment, the tire mold 010 further includes a temperature measuring line fixing device for fixing the temperature measuring line 430, and the temperature measuring line fixing device includes a wire inlet end and a wire outlet end. Further, the temperature measuring wire fixing device includes a wire clamp 370. The wire pressing clip 370 includes a connection portion 371 and a wire pressing portion 372, and the connection portion 371 and the wire pressing portion 372 are integrally formed. The connecting portion 371 is a substantially square sheet member having a connecting hole, and when mounting, a connecting screw is threaded to the formwork assembly 200 after passing through the connecting hole, thereby fixedly connecting the clamp 370 to the formwork assembly 200; the line pressing part 372 is semi-circular column shaped, when the line pressing clamp 370 is fixedly connected to the formwork assembly 200, a semi-circular column shaped line pressing hole is formed between the line pressing part 372 and the formwork assembly 200, and the temperature measuring line 430 penetrates through the line pressing hole, so that the line pressing hole is fixed. The two ends of the pressure wire hole are respectively a wire inlet end and a wire outlet end, and specifically, the temperature measuring wire 430 is led out from the temperature measuring element 410, penetrates into the pressure wire hole through the wire inlet end, and penetrates out of the pressure wire hole through the wire outlet end.

It should be noted that the specific structure of the temperature measuring line fixing device is not limited herein, and it should be understood that in other embodiments, the temperature measuring line fixing device with other structures may also be adopted according to the needs of the user, for example, the temperature measuring line fixing device is configured as two half ring members, and the two half ring members are butt-fixed to form the pressure wire hole and fixedly connected to the tire mold 010.

Fig. 6 is a schematic view of the whole structure of the tire mold 010 of this embodiment when the mold is opened. Referring to fig. 1, fig. 3 and fig. 6, in the present embodiment, the temperature measuring line fixing device includes a first temperature measuring line fixing device 351 disposed in the second wire passing gap 350. Since the mold opening and closing movement of the tire mold 010 is required during the use thereof, it is preferable that the first temperature measuring line fixing device 351 is provided on the lower end surface 221 of the guide ring 220 in order to prevent the temperature measuring line 430 from being damaged during the mold opening and closing. The temperature measuring line 430 fixed in the first temperature measuring line fixing device 351 moves with the up and down movement of the guide ring 220 during the opening and closing of the tire mold 010. By arranging the first temperature measuring wire fixing device 351 on the lower end surface 221, the temperature measuring wire 430 can be prevented from being wound or torn off during the mold opening and closing movement.

Further, the temperature measuring line fixing device further comprises a second temperature measuring line fixing device 341 arranged in the first wire passing gap 340, and the second temperature measuring line fixing device 341 is fixedly connected to the vertical surface of the sliding block 210. In order to ensure that the length of the temperature measuring wire 430 between the first temperature measuring wire fixing device 351 and the second temperature measuring wire fixing device 341 is enough to cope with the change caused by the up-and-down movement of the guide ring 220, and avoid the problem that the temperature measuring wire 430 is broken, the extension surface of the outlet end of the second temperature measuring wire fixing device 341, which is parallel to the lower end surface 221 of the guide ring 220, is located between the first preset position and the second preset position, that is, between the plane position a2 where the extension surface of the lower end surface 221 of the guide ring 220 when the tire mold 010 opens and the position a1 where the extension surface of the lower end surface 221 of the guide ring 220 when the tire mold 010 closes the mold.

Specifically, the temperature measuring elements 410 are arranged in the first pattern block temperature measuring hole 151, the second pattern block temperature measuring hole 152 and the third pattern block temperature measuring hole 153, and temperature measuring lines 430 of the three temperature measuring elements 410 sequentially pass through the first wire passing groove 310, the second temperature measuring line fixing device 341 and the first temperature measuring line fixing device 351, so that the temperature measuring lines are led out of the formwork assembly 200 and are connected with a temperature recorder 420 arranged outside the formwork assembly 200. The temperature measuring line fixing device can put the plurality of temperature measuring lines 430 together.

Further, since the distance between the third block temperature measuring hole 153 and the second temperature measuring line fixing device 341 is relatively large, in order to fix the temperature measuring line 430 of the third temperature measuring element 410 better, the temperature measuring line fixing device further comprises a third temperature measuring line fixing device 360 arranged between the third block temperature measuring hole 153 and the second temperature measuring line fixing device 341. The temperature measuring line 430 of the temperature measuring element 410 in the third pattern block temperature measuring hole 153 passes through the third temperature measuring line fixing device 360, the second temperature measuring line fixing device 341 and the first temperature measuring line fixing device 351 in sequence, is led out of the formwork assembly 200, and is connected with a temperature recorder 420 arranged outside the formwork assembly 200.

It should be noted that the number of the temperature measuring line fixing devices is not limited herein, and it is understood that in other embodiments, the number of the temperature measuring line fixing devices may also be specifically set according to the needs of the user, for example, an additional temperature measuring line fixing device is added according to the trend of the temperature measuring line 430, or only the first temperature measuring line fixing device 351 and the second temperature measuring line fixing device 341 are provided.

Fig. 7 is a schematic structural diagram of the upper cover 240 in the tire mold 010 according to the embodiment. Referring to fig. 7, in the present embodiment, temperature measuring elements 410 are disposed in the first upper side plate temperature measuring hole 154, the second upper side plate temperature measuring hole 155 and the third upper side plate temperature measuring hole 156, and a temperature measuring line 430 sequentially passes through the second line passing groove 320, the first line passing gap 340 and the second line passing gap 350, so as to be led out of the formwork assembly 200 and connected to a temperature recorder 420 disposed outside the formwork assembly 200. In order to prevent the temperature measuring wires 430 led out from the temperature measuring holes of the upper side plate from being damaged in the process of opening and closing the tire mold 010, the temperature measuring wire fixing device further comprises a fourth temperature measuring wire fixing device 380 fixedly connected to the vertical surface of the sliding block and a fifth temperature measuring wire fixing device 390 fixedly connected to the radial outer end of the upper cover 240. When the tire mold 010 is in a mold closing state, the outlet end of the fifth temperature measuring line fixing device 390 is located at a third preset position, and when the tire mold 010 is in a mold opening state, the outlet end of the fifth temperature measuring line fixing device 390 is located at a fourth preset position. A straight line parallel to the center line of the tire mold 010 and where the incoming line end of the fourth temperature measuring line fixing device 380 is located between the third preset position and the fourth preset position, that is, the incoming line end of the fourth temperature measuring line fixing device 380 is located between a vertical plane a3 where the outgoing line end of the fifth temperature measuring line fixing device 390 is located when the tire mold 010 is closed and a vertical plane a4 where the outgoing line end of the fifth temperature measuring line fixing device 390 is located when the tire mold 010 is opened. The length of the temperature sensing wire 430 between the fifth temperature sensing wire fixing device 390 and the fourth temperature sensing wire fixing device 380 is sufficient to avoid the problem of the temperature sensing wire 430 being torn apart. Since the fifth temperature sensing wire fixing device 390 is fixedly connected to the upper cover 240, the position of the fifth temperature sensing wire fixing device 390 does not change when the tire mold 010 is opened and closed, and thus the third preset position and the fourth preset position are positions of the fifth temperature sensing wire fixing device 390 with respect to the slider 210.

It should be noted that the fixing manner of the temperature measuring wire 430 is not limited, and it should be understood that, in other embodiments, the temperature measuring wire 430 may be fixed in the first wire passing groove 310 and the second wire passing groove 320 by covering the wire pressing plates on the first wire passing groove 310 and the second wire passing groove 320 according to the requirement of the user after the temperature measuring wire 430 is disposed in the first wire passing groove 310 and the second wire passing groove 320.

Further, in this embodiment, the temperature sensing element 410 includes a thermocouple or a thermal resistor. It is understood that in other embodiments, other types of temperature measuring elements 410 can be selected according to the user's requirement, and the temperature can be measured.

Fig. 8 is a schematic structural diagram of the lower side plate 120 in the tire mold 010 provided in this embodiment. Referring to fig. 8, in the present embodiment, a temperature measuring hole 150 and a wire passing groove communicated with the temperature measuring hole 150 are formed on the lower side plate 120. A temperature measuring element 410 is arranged in the temperature measuring hole 150 of the lower side plate 120, and a temperature measuring line 430 of the temperature measuring element 410 is led out of the formwork assembly 200 through the line passing groove in sequence and is connected with a temperature recorder 420 outside the formwork assembly 200. Preferably, three temperature measuring holes 150 are formed at intervals in the radial direction of the lower side plate 120, and the wire passing groove is formed in the radial direction of the lower side plate 120, so that one wire passing groove can be simultaneously communicated with the three temperature measuring holes 150.

A tire mold 010 is provided in an embodiment of the invention that includes a temperature measuring element 410, a formwork assembly 200, and a cavity assembly 100 disposed within the formwork assembly 200. Temperature measuring holes 150 are formed in the pattern blocks 110 of the cavity assembly 100, in order to better monitor the temperature change of each part on the pattern blocks 110, the temperature measuring holes 150 are formed in the upper, middle and lower parts of the pattern blocks 110, the first wire passing grooves 310 communicated with the temperature measuring holes 150 are formed in the back surfaces of the pattern blocks 110, temperature measuring wires 430 of temperature measuring elements 410 in the temperature measuring holes 150 are led into the first wire passing gaps 340 through the first wire passing grooves 310 and are fixed through second temperature measuring wire fixing devices 341 arranged in the first wire passing gaps 340, and then are led out of the formwork assembly 200 through the second wire passing gaps 350. Meanwhile, the upper side plate 130 of the cavity assembly 100 is also provided with temperature measuring holes 150, three temperature measuring holes 150 and a second wire passing groove 320 communicated with the temperature measuring holes 150 are arranged along the radial direction of the upper side plate 130 at intervals, and a temperature measuring line 430 sequentially passes through the second wire passing groove 320, the first wire passing gap 340 and the second wire passing gap 350 to be led out of the formwork assembly 200. In order to avoid the problem that the temperature measuring wire 430 is torn off during the opening and closing of the tire mold 010, a first temperature measuring wire fixing device 351 is fixed to the lower end surface 221 of the guide ring 220 of the second wire passing gap 350, the temperature measuring wire 430 fixed in the first temperature measuring wire fixing device 351 moves along with the up-and-down movement of the guide ring 220, and a second temperature measuring wire fixing device 341 is arranged between the first preset position and the second preset position. Meanwhile, in order to more comprehensively monitor the temperature of the tire mold 010, a temperature measuring hole 150 is also formed in the lower side plate 120 of the cavity assembly 100.

In summary, in the tire mold 010 provided by the embodiment of the present invention, the three temperature measuring holes 150 are formed at intervals on the pattern block 110, so that the temperatures of the pattern block 110 and the upper side plate 130 are accurately and comprehensively monitored, more comprehensive data can be provided for the mold structure optimization design and the tire vulcanization process adjustment, and the design level is improved; and can not cause damage to the tire. By arranging the wire passing grooves communicated with the temperature measuring holes 150 and reasonably arranging the wiring path of the temperature measuring wire 430 led out of the formwork assembly 200, the temperature measuring wire 430 is prevented from influencing the work of a tire mold 010 in the using process, and the problem that the temperature measuring wire 430 is extruded or pulled apart is also avoided. The temperature measuring line 430 is connected to the temperature recorder 420 after being led out of the mold shell assembly 200, and the temperature of the cavity surface of the tire mold 010 is displayed in real time during the preheating and vulcanizing processes of the tire mold 010 through the display screen of the temperature recorder 420. Moreover, the working is reliable, the failure rate is low, and the service life of the tire mold 010 is further prolonged.

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.

Claims

1. A tire mold, comprising:

the temperature measuring device comprises a formwork component, a temperature measuring element and a cavity component arranged in the formwork component; the cavity assembly comprises an upper side plate and a plurality of pattern blocks arranged along the circumferential direction of the upper side plate; at least one of the pattern blocks or the upper side plate is provided with a temperature measuring hole, and the temperature measuring element is arranged in the temperature measuring hole; the tire mold is provided with a wire passing groove communicated with the temperature measuring hole, and the wire passing groove is used for guiding the temperature measuring line of the temperature measuring element out of the cavity assembly;

a first wire passing gap is formed between two adjacent sliding blocks of the formwork component, and the wire passing groove is communicated with the first wire passing gap; the temperature measuring wire is led out through the wire passing groove and the first wire passing gap.

2. The tire mold of claim 1, wherein:

a second wire passing gap is formed between the guide ring and the base of the formwork assembly and is communicated with the first wire passing gap; the temperature measuring line penetrates through the line passing groove, the first line passing gap and the second line passing gap to be led out of the formwork assembly.

3. The tire mold of claim 1, wherein:

the tire mold further comprises a first temperature measuring line fixing device for fixing the temperature measuring line, and the first temperature measuring line fixing device is fixedly connected to the lower end face of the guide ring of the mold shell assembly.

4. The tire mold of claim 3, wherein:

when the tire mold is in a mold closing state, the lower end face is in a first preset position; when the tire mold is in a mold opening state, the lower end face is in a second preset position;

the tire mold also comprises a second temperature measuring line fixing device fixedly connected to the slide block vertical surface of the formwork component; and the extension surface of the outlet end of the second temperature measuring wire fixing device, which is parallel to the lower end surface, is positioned between the first preset position and the second preset position.

5. The tire mold of claim 4, wherein:

the tire mold further comprises a fourth temperature measuring line fixing device and a fifth temperature measuring line fixing device; the fourth temperature measuring line fixing device is fixedly connected to the vertical surface of the sliding block; the fifth temperature measuring line fixing device is fixedly connected to the upper cover of the formwork component; when the tire mold is in a mold closing state, the wire outlet end of the fifth temperature measuring wire fixing device is in a third preset position; when the tire mold is in a mold opening state, the wire outlet end of the fifth temperature measuring wire fixing device is in a fourth preset position; and a straight line, parallel to the central line of the mold, where the wire inlet end of the fourth temperature measuring wire fixing device is located between the third preset position and the fourth preset position.

6. The tire mold of claim 3, wherein:

the first temperature measuring wire fixing device comprises a wire pressing clamp; the wire pressing clamp comprises a connecting part and a wire pressing part fixedly connected to the connecting part; the connecting part is used for being fixedly connected with the guide ring; and a wire pressing hole for the temperature measuring wire to penetrate is formed between the wire pressing part and the guide ring.

7. The tire mold of claim 1, wherein:

the pattern block is provided with the temperature measuring hole, the wire passing groove comprises a first wire passing groove arranged on a sliding block and/or the pattern block of the formwork component, and the first wire passing groove is arranged along the circumferential direction of the pattern block;

and/or the upper side plate is provided with the temperature measuring hole, the wire passing groove comprises a second wire passing groove arranged on the upper side plate and/or the upper cover of the formwork assembly, and the second wire passing groove extends along the radial direction of the upper side plate.

8. The tire mold of claim 7, wherein:

the pattern blocks comprise an upper end part, a middle part and a lower end part which are sequentially connected along the axial direction of the tire mold, and at least one of the upper end part, the middle part and the lower end part is provided with the temperature measuring hole.

9. The tire mold of claim 1, wherein:

the temperature measuring element comprises a thermocouple or a thermal resistor;

and/or a temperature measuring hole is formed in the lower side plate of the cavity component.