CN216544818U - Tire mold changing mechanism, tire mold base and vulcanizing machine - Google Patents

Abstract

The utility model discloses a tire mold changing mechanism, a tire mold base and a vulcanizing machine, which belong to the field of tire mold vulcanization and comprise a locking component, an elastic component and a limiting component, wherein at least one side of the locking component is connected with the elastic component, and the limiting component is used for limiting a matching part of the locking component so as to keep the elastic component in a maximum compression state; the locking component is provided with a clamping surface, and after the limiting component is removed, the clamping surface is clamped with the positioning cone of the lower hot plate under the action of the restoring force of the elastic component. According to the utility model, the mold base and the lower hot plate of the vulcanizing machine can be quickly assembled and disassembled through the mold changing mechanism, so that the connection efficiency of the lower hot plate and the tire mold is improved.

Description

Tire mold changing mechanism, tire mold base and vulcanizing machine

Technical Field

The utility model relates to the field of tire mold vulcanization, in particular to a tire mold changing mechanism, a tire mold base and a vulcanizing machine.

Background

When a tire factory vulcanizes tires of different specifications and models, the used tire changing mold is also frequently replaced. However, in the conventional method for replacing the mold, after the tire mold is aligned, a screw is manually used to connect the base of the mold and the lower hot plate of the vulcanizing machine. It is also necessary to operate with a wrench and other tools during the tightening of the screw. The manual replacement of the mold is not only complex in operation, but also low in replacement efficiency, thereby affecting the vulcanization efficiency of the tire mold.

In order to replace the traditional way of bolting the hot plate of the vulcanizer to the tire mold, quick-coupling devices have been proposed. For example, the prior art discloses a method for clamping a hot plate of a vulcanizing machine and an upper ring and a base of a tire mold, which comprises the upper ring of the tire mold, the base and a clamping device, wherein the clamping device is fixed on a lower hot plate of the vulcanizing machine, and the clamping device comprises a pressing block, a hydraulic oil cylinder and a motor, so that the hot plate of the vulcanizing machine can rapidly clamp the upper ring and the base of the tire mold.

Although the scheme realizes automatic and quick clamping of the tire mold and the hot plate of the vulcanizing machine, a hydraulic oil cylinder and a motor are required to be used as additional power sources.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a tire mold changing mechanism, a tire mold base and a vulcanizing machine.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

in a first aspect, a tire mold changing mechanism is provided.

A tire mold changing mechanism comprises a locking component, an elastic component and a limiting component, wherein at least one side of the locking component is connected with the elastic component, and the limiting component is used for limiting a matching part of the locking component so as to enable the elastic component to keep the maximum compression state;

the locking component is provided with a clamping surface, and after the limiting component is removed, the clamping surface is clamped with the positioning cone of the lower hot plate under the action of the restoring force of the elastic component.

Through the design, the locking component can move along the radial direction of the die base under the action of the limiting component, so that the die changing mechanism is in a loosening state; after the limiting component is released, the locking component moves reversely under the action of the elastic component, and the die changing mechanism is in a locking state.

As an alternative embodiment, the clamping surface is arranged at one end of the locking component, and the matching part is arranged at the other end of the locking component;

a first contact surface is arranged on one side of the matching portion, a first pressing plate is arranged on the top of the locking component, and a second contact surface opposite to the first contact surface is arranged on the first pressing plate.

In an alternative embodiment, the stopper member has a first engagement surface that can be brought into contact with the first contact surface on one side and a second engagement surface that can be brought into contact with the second contact surface on the other side; the first contact surface and the second contact surface are both inclined surfaces;

one end of the first pressing plate, which is far away from the second contact surface, is provided with a first clamping interface used for matching with the positioning cone.

As an alternative embodiment, a second pressing plate and a baffle plate are sequentially arranged on the lower side of the locking component, the limiting component is perpendicular to the second pressing plate and the baffle plate, and the limiting component is provided with a protruding block which can be attached to the matching part.

As an alternative embodiment, the limiting part comprises a tension piece and a limiting part detachably connected with the tension piece; the baffle is provided with a groove, the limiting part is arranged in the groove, and the limiting part can be separated from the upper surface of the groove under the action of the tensioning piece.

In an alternative embodiment, the two sides of the bump are inclined planes; the locking component is provided with a first through groove, and the side wall of the first through groove forms a matching part matched with the lug; the second pressing plate is provided with a second through groove, and the side wall of the second through groove is provided with a table top matched with the convex block.

As an alternative embodiment, the locking component has an overhang portion on both sides, the upper surface of the second pressure plate has a convex portion, and the elastic component is arranged between the overhang portion and the convex portion;

the clamping surface is arranged at one end of the locking component, and a second clamping interface used for matching with the positioning cone is arranged at one end of the second pressing plate.

As an alternative embodiment, the tire mold further comprises a connecting plate for connecting the tire mold, the limiting component vertically penetrates through the connecting plate, and the end part of the limiting component is connected with the locking component.

As an alternative embodiment, one end of the limiting component is abutted with the locking component;

or the limiting component is in threaded connection with the locking component.

As an alternative embodiment, a fixing plate is arranged on the lower side of the locking part, and the fixing plate is provided with an opening or a through hole for matching with the positioning cone;

the clamping surface is arranged at one end of the locking component; or the locking component is provided with a through groove for the positioning cone to pass through, and the clamping surface is arranged on the inner surface of the through groove.

In a second aspect, a tire mold base is provided.

The tire mold base is provided with the mold changing mechanisms, and at least two mold changing mechanisms are installed at intervals along the circumferential direction of the mold base.

In a third aspect, a vulcanizer is provided.

A vulcanizing machine is provided with the tire mold base.

The utility model has the following beneficial effects:

the locking component can move along the radial direction of the die base under the action of the limiting component, so that the die changing mechanism is in a loosening state; after the limiting component is released, the locking component moves reversely under the action of the elastic component, and the die changing mechanism is in a locking state; the connection and the disassembly of the mold base and the lower hot plate can be realized; the original mold mounting method of manually mounting and dismounting screws is replaced, and the connection efficiency of the lower hot plate of the vulcanizing machine and the tire mold is remarkably improved; and power sources such as oil cylinders and air cylinders are not needed.

The die change mechanism can be realized by selecting different structures, and comprises the following components: the elastic component is arranged between the mold base and the locking component, and the pressing plate and the locking component form a sliding channel through oppositely arranged contact surfaces; the die changing mechanism is in a loose state by placing a limiting part in the sliding channel; the die changing mechanism is in a locking state under the action of the elastic force of the elastic component by taking out the limiting component;

or the die changing mechanism comprises a baffle, a pressing plate and a locking part, the locking part comprises a tensioning piece and a sliding block, the sliding block is separated from the surface of the groove under the tightening state of the tensioning piece, and the elastic piece is in the maximum compression state, so that the connecting mechanism is in the loosening state; after the tensioning piece is removed, the sliding block moves downwards along the groove until the sliding block is contacted with the surface of the groove, and the locking block is clamped with the positioning cone under the action of the restoring force of the elastic component;

or the mold changing mechanism comprises a fixing plate, a locking component and a connecting plate, wherein the locking component changes the position of the locking component through a limiting component to realize the change of the locking and unlocking states of the mold changing mechanism.

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 view of a tire mold and vulcanizer installation according to a sixth embodiment of the present invention;

FIG. 2 is an installation diagram of a mold changing mechanism according to a fifth embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a mold exchanging mechanism according to a first embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a sectional view of the die change mechanism according to the first embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a lock block according to a first embodiment of the present invention;

FIG. 7 is a schematic view of a pressing plate according to a first embodiment of the present invention;

FIG. 8(a) is a schematic view showing a released state of the mold exchanging mechanism according to the first embodiment of the present invention;

FIG. 8(b) is a schematic view showing a locking state of the mold exchanging mechanism according to the first embodiment of the present invention;

FIG. 9 is a schematic view of the connection mechanism according to the second embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a connecting mechanism according to a second embodiment of the present invention;

FIG. 11 is an enlarged view of a portion of FIG. 10 at B;

FIG. 12 is an installation cross-sectional view of a coupling mechanism according to a second embodiment of the present invention;

FIG. 13 is a schematic view of the slider and the tension member according to the second embodiment of the present invention;

FIG. 14 is a schematic structural diagram of a locking block according to a second embodiment of the present invention;

FIG. 15 is a schematic view of a second embodiment of the present invention;

FIG. 16 is a schematic view showing a released state of the coupling mechanism according to the second embodiment of the present invention;

FIG. 17 is an enlarged view of a portion of FIG. 16 at C;

FIG. 18 is a schematic view of a locking state of the coupling mechanism according to the second embodiment of the present invention;

FIG. 19 is an enlarged view of a portion of FIG. 18 at D;

FIG. 20 is a schematic view of the mounting mechanism of the third embodiment of the present invention;

FIG. 21 is a structural diagram of a mounting mechanism in accordance with a third embodiment of the present invention;

FIG. 22 is an enlarged view of a portion of FIG. 21 at E;

FIG. 23 is a cross-sectional view of a mounting mechanism in accordance with a third embodiment of the present invention;

FIG. 24 is a schematic diagram of a fixing plate structure according to a third embodiment of the present invention;

fig. 25 is a schematic structural diagram of a lock block according to a third embodiment of the present invention;

FIG. 26(a) is a schematic view showing a released state of the mounting mechanism in accordance with the third embodiment of the present invention;

FIG. 26(b) is a schematic view showing a locking state of the mounting mechanism according to the third embodiment of the present invention;

FIG. 27 is a structural diagram of a mounting mechanism in accordance with a fourth embodiment of the present invention;

FIG. 28 is an enlarged view of a portion of FIG. 27 at F;

FIG. 29 is a cross-sectional view of a mounting mechanism in accordance with a fourth embodiment of the present invention;

FIG. 30 is a schematic structural diagram of a fixing plate according to a fourth embodiment of the present invention;

fig. 31 is a schematic structural diagram of a lock block according to a fourth embodiment of the present invention;

FIG. 32(a) is a schematic view showing a released state of the mounting mechanism in accordance with the fourth embodiment of the present invention;

FIG. 32(b) is a schematic view showing a locking state of the mounting mechanism according to the fourth embodiment of the present invention.

Wherein, 1, a mold base, 2, a tire mold, 3, a lower hot plate, 4, a fixing plate, 5, a mold changing mechanism, 6, a locking member, 7, a limiting component, 8, a locking component, 9, a pressing plate, 10, a positioning cone, 11, an elastic component, 12, an opening, 13, a first clamping groove, 14, a matching part, 15, a first contact surface, 16, a first clamping opening, 17, a second clamping groove, 18, a second contact surface, 19, a sliding block, 20, a first sinking platform, 21, a second sinking platform, 22, a second pressing plate, 23, a sliding block, 24, a tensioning member, 25, a locking component, 26, a baffle, 27, a convex block, 28, a central bulge, 29, an inclined plane, 30, a clamping surface, 31, a first through groove, 32, an outer bulge, 33, a first platform surface, 34, a second clamping opening, 35, a second through groove, 36, a bulge, 37, a second platform surface, 38 and a groove,

39. locking part, 40, fixing plate, 41, connecting plate, 42, limiting part, 43, protrusion, 44, through hole, 45, stopper, 46, through groove, 47, groove, 48, locking part, 49, fixing plate, 50, opening, 51, limiting block, 52, boss, 53, clamping surface, 54 and threaded hole.

Detailed Description

The first embodiment is as follows:

the embodiment provides a tire mold changing mechanism for connecting and locking a vulcanizing machine and a tire mold.

As shown in fig. 3-5, the mold changing mechanism 5 includes a first pressing plate 9, an elastic component 11, a locking component 8 and a limiting component 7, wherein at least one side of the locking component 8 is connected with the elastic component 11, and the limiting component 7 is used for abutting against a matching part of the locking component 8 so as to enable the elastic component 11 to keep a maximum compression state; the locking member 8 has a locking surface, and after the stopper member 7 is released, the locking surface is engaged with the positioning cone 10 of the lower hot plate 3 by the restoring force of the elastic member 11.

The first presser plate 9 is disposed on top of the locking member 8 and the stopper member 7 is inserted into the slide passage formed by the first presser plate 9 and the locking member 8 only when necessary. One end of the elastic member 11 abuts against the locking member 8, and the other end abuts against the inner wall of the mold base 1. Preferably, the elastic member 11 is a spring.

The limiting component 7 can enable the locking component 9 to move along the radial direction of the die base 1 under the action of pressing down, and the compression state of the elastic component 11 between the die base 1 and the locking component 8 is changed; the limiting component 7 is taken out, and the locking component 8 moves reversely under the restoring force of the elastic component 11 to lock the positioning cone 10 of the lower hot plate 3.

As shown in fig. 6, the locking member 8 includes a locking member body having a projection at one end. The locking member body of this embodiment is of rectangular configuration with an opening 12 at the end remote from the boss.

Of course, in other embodiments, the locking member body may have other shapes, such as trapezoidal, arcuate, etc.

The opening 12 is in a transitional arc structure, so that the opening 12 is smoothly clamped into the positioning cone 10 in the recovery process of the elastic component 11, and is tightly clamped with the positioning cone 10 after the recovery is finished.

The opening 12 includes first circular arc section, second circular arc section and the third circular arc section of connecting as an organic whole, and wherein, second circular arc section and 19 looks adaptations of location awl are for the joint face, and second circular arc section and 19 outer wall laminating of location awl under locking state.

The first arc segment and the third arc segment are symmetrical relative to the central line of the second arc segment, and form an outward expansion structure, and play a guiding role through the outward expansion structure.

In the present embodiment, the protruding portion is formed by two rectangular blocks arranged at intervals, and the first card slot 13 is formed between the two rectangular blocks. The first engaging groove 13 is provided with an engaging portion 14, and the engaging portion 14 is provided at an end away from the locking member body.

The two sides of the protruding part have a certain distance from the edge of the locking part main body to form an installation space of the elastic part 11, and one side or two sides of the protruding part are provided with the elastic part 11. The structure of the protruding part is not limited to the rectangular block form of the embodiment, and can be specifically set according to the actual installation requirements.

The surface of the matching part 14 facing the inner side of the first clamping groove 13 is a first contact surface 15, the first contact surface 15 is used for matching the limiting component 7, and the limiting component 7 and the first contact surface 15 are abutted to drive the locking component 8 to move along the radial direction of the mold base.

Preferably, the first contact surface 15 is a bevel for better guidance.

In this embodiment, the first pressing plate 9 is a rectangular plate, as shown in fig. 7, one end of the first pressing plate 9 is provided with a first clamping port 16, and the other end is provided with a second clamping groove 17; the second engaging groove 17 corresponds to the upper portion of the first engaging groove 13, and forms a sliding channel of the limiting member 7.

The second clamping groove 17 is formed inwards from the end part of the first pressing plate 9, a second contact surface 18 is arranged at the closed end of the second clamping groove 17, and the second contact surface 18 is used for being matched with the limiting component 7 to generate extrusion force on the locking component 8.

Preferably, the second contact surface 18 is also a bevel, the direction of which is opposite to the first contact surface 13.

The first clip interface 16 is circular, and in the embodiment, the opening 12 and the first clip interface 16 are used for clipping the positioning cone 10. Of course, in other embodiments, the shape of the first presser plate 9 may be adapted.

The position-limiting component 7 is not fixedly connected with other components, one side of the position-limiting component has a first matching surface capable of being abutted against the first contact surface 15, the other side of the position-limiting component has a second matching surface capable of being abutted against the second contact surface 18, the first matching surface and the second matching surface of the embodiment are both inclined surfaces, namely the position-limiting component 7 is a V-shaped block.

The limiting component 7 of the embodiment can be pressed down along the sliding channel, the locking component 8 moves along the radial direction of the mold base under the elastic force of the elastic component 11, when the elastic component 11 is in the maximum compression state, due to the V-shaped characteristic of the limiting component 7, the limiting component contacts with the corresponding inclined surfaces of the locking component 8 and the first pressing plate 9, the displacement of the locking component 8 is limited by the position of the limiting component 7, and the mold changing mechanism 5 is in the loosening state.

After the limiting part 7 is taken out, the locking part 8 moves along the radial direction of the die base under the action of the elastic part 11 until the opening 12 of the locking part 8 moves into the groove in the middle of the positioning cone 10, and the die change mechanism 5 is in a locking state.

The working principle of the embodiment is as follows:

the mold changing mechanism 5 realizes connection and release of the vulcanizer and the tire mold 2 by the action state of the tire mold 2 in the use process.

As shown in fig. 8(a), when the tire mold 2 is just placed on the vulcanizer, the slider 19 in the tire mold 2 is positioned on the mold base 1, and at this time, the bottom surface of the slider 19 abuts against the upper end surface of the stopper 7, and the elastic member 11 in the mold changing mechanism 5 is in the maximum compression state, and the elastic member 11 abuts against the lock member 8 with the maximum elastic force.

Since the V-shaped feature of the limiting member 7 is in contact with the corresponding inclined surfaces of the first pressing plate 9 and the locking member 8, the position of the limiting member 7 limits the displacement of the locking member 8, and the positioning cone 10 ensures that the tire mold 2 is placed at the correct position of the vulcanizing machine, and the mold changing mechanism 5 is in a released state at this time.

As shown in fig. 8(b), after the tire mold 2 is set on the vulcanizer, the tire mold 2 is attached to the upper hot plate 3, the tie bolts or fixing plates on the tire mold 2 are removed, and the mold is opened, and at this time, the slide 19 is moved upward and detached from the mold base 1.

And (3) taking out the limiting part 7, moving the locking part 8 along the groove of the mold base 1 under the action of the elastic part 11, finally moving the head part of the locking part 8 into the groove in the middle of the positioning cone 10, and enabling the mold changing mechanism 5 to be in a locking state to realize the connection of the mold base 1 and the vulcanizing machine.

The tire mould 2 no longer need adjust retooling mechanism 5 in normal use, only need place earlier spacing part 7 in the middle of first clamp plate 9 and locking part 8 when retooling next time, connect tire mould 2 again, when the slider seat was on mould base 1, retooling mechanism 5 will loosen automatically, and then can continue to accomplish the retooling.

Example two:

the present embodiment provides a tire mold exchanging mechanism, and as shown in fig. 9 and 10, the mold exchanging mechanism 5 is mounted to the mold base 1.

As shown in fig. 11-13, the device comprises a locking component 25, an elastic component 11, a baffle 26, a second pressing plate 22 and a limiting component, wherein the limiting component comprises a tension piece 24 and a sliding block 23, and the baffle 26, the second pressing plate 22 and the locking component 25 are sequentially arranged from bottom to top.

The bottom surface of the baffle 26 is a contact surface with the mold base 1, and the baffle 26 is positioned on one side of the positioning cone 10 of the lower hot plate 3 and attached to the outer circumference of the bottom of the positioning cone 10. A groove 38 is formed in the baffle 26, and the tensioning piece 24 is perpendicular to the baffle 26 and is connected with the sliding block 23 arranged in the groove 38; the slide block 23 can move up and down in a direction perpendicular to the shutter 26.

The elastic member 11 is disposed between the second presser plate 22 and the locking member 25, and enables the locking member 25 to move in the radial direction of the mold base 1. The elastic member 11 is a member having a stretching performance, and preferably, a spring is used as the elastic member 11 of the present embodiment.

The sliding block 23 comprises a sliding block main body and a central bulge 28 arranged on the sliding block main body, and the tension piece 24 is connected with the central bulge 28 to ensure the motion stability of the sliding block 23. The slider body circumference is clearance fit with the groove 38 of the stop 26 so that the slider 23 can move up and down smoothly along the groove 38. The shape of the main body of the slider is adapted to the shape of the groove 38, and in this embodiment, the main structure of the slider is rectangular.

Of course, in other embodiments, the slider body may be disk-shaped or otherwise shaped.

The tensioning piece 24 of this embodiment is a tensioning bolt, and a threaded hole is formed in the central protrusion 28, and the tensioning bolt is in threaded connection with the sliding block 23, so that the assembly and disassembly are convenient. After removal of the tensioning bolt, the slide block 23 is lowered along the groove 38 until it comes into surface contact with the groove 38.

In the present embodiment, the center projection 28 is provided in a stepped shape; in the using state of the mold changing mechanism 5, the central bulge 28 is in clearance fit with the through hole on the mold base 1 in the circumferential direction, so that the sliding block 23 can move up and down. When the tension bolt is in a tightened state, the slide block 23 is at an upper limit position in the groove 38 of the stopper 26, and the upper end surface of the main body of the slide block 23 abuts against the lower end surface of the second presser plate 22.

It will be appreciated that in other embodiments, the central protrusion 28 may take other forms.

The central protrusion 28 is provided with a protrusion 27 at one side, and the protrusion 27 is engaged with the second pressing plate 22 and the locking member 25, so that the protrusion 27 is not fixedly connected with other components.

In this embodiment, the protrusion 27 is similar to a key structure, and has two spaced V-shaped blocks, the V-shaped blocks are disposed on the surface of the main body of the sliding block 23, and the two V-shaped blocks are connected together. The two sides of the projection 27 are formed into inclined surfaces 29 through a V-shaped block structure, and the inclined surfaces 29 are matched with the corresponding table-board of the locking component 25 and the second pressure plate 22.

Of course, in other embodiments, the bump 27 may have other structures, such as an inverted single V-shaped block structure of the bump 27.

As shown in fig. 14, the locking member 25 has a first through-groove 31, and the tension member 24 passes through the first through-groove 31. Since the locking member 25 is movable in the radial direction of the mold base 1, the radial position of the tension member 24 is unchanged, and the inner wall of the first through-groove 31 is engaged with the projection 27, the first through-groove 31 has a certain range.

The inner wall of one side of the first through groove 31 forms a matching part, the matching part is provided with a first table surface 33 matched with the inclined surface 29 of one side of the bump 27, and in order to adapt to the connecting structure of the two V-shaped blocks, the number of the first table surfaces 33 is two, and the two first table surfaces are inclined surfaces. The two first mesas 33 have a spacing therebetween that is consistent with the distance between the two V-shaped blocks.

One end of the locking component 25 is provided with a clamping surface 30, the clamping surface 30 is arc-shaped, and the diameter of the clamping surface is matched with that of the positioning cone 10; when the locking part 25 is in the locked state, the clamping surface 30 is clamped in the annular groove of the positioning cone 10.

Both sides of the locking member 25 have the protruding portions 32, and the protruding portions 32 correspond to the protruding portions 36 on the second pressing plate 22; the elastic member 11 is connected between the protruding portion 32 and the protruding portion 36, and has a certain pre-load force.

As shown in fig. 15, the protrusion 36 is disposed at one end of the second pressing plate 22, and the other end of the second pressing plate 22 is disposed with the second clip interface 34; the second clip interface 34 is arc-shaped, and the diameter of the second clip interface is adapted to the outer circumference of the positioning cone 10.

The second clip interface 34 is clipped on the outer side of the positioning cone 10 to limit the second pressing plate 22. The second pressing plate 22 is provided with a second through groove 35, the inner wall of the second through groove 35 is provided with a second table surface 37, and the second table surface 37 is matched with the inclined surface 29 at the other side of the bump 27. The first and second table surfaces 33, 37 abut against the inclined surfaces 29 on both sides of the projection 27, thereby realizing a positioning and guiding function for the slide block 23.

When the mold changing mechanism 5 of this embodiment is installed, the baffle 26 and the second pressing plate 22 are connected with the mold base 1 through screws, a semicircular hole is formed in one side of the baffle 26, the baffle 26 can form a complete circular hole with the semicircular hole in the mold base 1, and the circular hole can be matched with the positioning cone 10 of the lower hot plate 3 when the mold is placed on the lower hot plate 3, so that the mold positioning function is realized.

The positioning cone 10 is fixed with the lower hot plate 3 through a screw and a fixing block, the fixing block is located in a T-shaped groove of the lower hot plate 3, a counter bore with the same diameter as the bottom of the positioning cone 10 is formed in the upper end of the T-shaped groove, the bottom surface of the positioning cone 10 is in contact with the bottom surface of the counter bore, and the position of the positioning cone 10 is limited through the counter bore.

The working principle of the embodiment is as follows:

as shown in fig. 16 and 17, when the mold is just placed on the vulcanizer, the tie bolts are not removed, the tie bolts are screwed to the slide blocks 23, and since the slide blocks 23 can move up and down but cannot rotate in the grooves of the stopper 26 and the tie bolts are in a tightened state, the slide blocks 23 are at the upper limit position in the grooves 38.

Slider main part up end and the terminal surface butt under the second clamp plate 22, the V type piece of lug 27 respectively with second clamp plate 22 and locking part 25 butt, locking part 25 is located the leftmost end of its motion stroke (the one end at center is kept away from to mould base 1), elastic component 11 is compressed to the at utmost by locking part 25 this moment, location awl 10 plays the positioning action to the mould, is in the tram when guaranteeing that the mould is placed on the vulcanizer in the accurate position, retooling mechanism 5 is in the unclamped state this moment.

As shown in fig. 18 and 19, after the tension bolt is removed, the slide block 23 is lowered, the lower surface of the slide block 23 abuts against the surface of the groove 38 of the retainer 26, the projection 27 is moved downward, the bottom surface of the projection 27 remains on the upper end surface of the slide block body, and the V-shaped piece of the projection 27 abuts against the inclined surface 29 of the second presser plate 22 and the locking member 25.

Since the elastic member 11 has been compressed to the maximum stroke before, after the projection 27 moves downward, the elastic force of the elastic member 11 moves the locking member 25 rightward until the locking member 25 extends into the annular groove in the middle of the positioning cone 10; the upper surface and the lower surface of the annular groove are at certain distances from the upper surface and the lower surface of the locking component 25, so that the locking component 25 is ensured not to interfere with the positioning cone 10 in the movement process, and the connection of the mold base 1 and the lower hot plate 3 is completed.

Example three:

the present embodiment provides a tire mold exchanging mechanism, as shown in fig. 20, in which a mold exchanging mechanism 5 is located in a mold base 3.

As shown in fig. 21-23, the device comprises a fixing plate 40, a locking component 39 and an elastic component 11, wherein the locking component 39 is arranged on the upper side of the fixing plate 40, and the positioning cone 10 of the lower hot plate 3 passes through the fixing plate 40 and the locking component 39.

The fixing plate 40 is installed on the mold base 1, the elastic component 11 is disposed between the fixing plate 40 and the locking component 39 with a certain pre-tightening force, and the locking component 39 can move along the radial direction of the mold base 1 under the restoring force of the elastic component 11, so that the locking component 39 is locked with the positioning cone 10.

Preferably, the elastic member 11 is a spring.

The mold exchanging mechanism 5 of the present embodiment further includes a connecting plate 41, and the connecting plate 41 is used as a connecting member of the tire mold 2 and the mold base 1, is disposed on the circumferential outer side of the tire mold 2 and the mold base 1, and is detachably connected to the tire mold 2 and the mold base 1.

The connecting plate 41 is connected with the die base 1 through a limiting component 42, one end of the limiting component 42, which extends into the die base 1, is contacted with the locking component 39, and the side surface of the locking component 39 forms a matching part; the position of the locking element 39 is changed by the length of the stop element 42 into the mould base 1. When the limiting member 42 is tightened, the elastic member 11 is in a maximum compression state, and the mold changing mechanism 5 is in a loose state.

In the present embodiment, the position restricting member 42 is a screw; of course, in other embodiments, the position limiting component 42 may be other components such as a pin.

As shown in fig. 24, the fixing plate 40 of the present embodiment is a rectangular plate, the fixing plate 40 is provided with a through hole 44 matching with the outer circumference of the positioning cone 10, and the fixing plate 40 is limited by the positioning cone 10.

It is understood that in other embodiments, the fixing plate 40 may be a circular plate, or other shapes.

The upper surface of one end of the fixing plate 40 is provided with two protrusions 43, and the number of the protrusions 43 can be adjusted adaptively.

As shown in fig. 25, the locking member 39 has two recesses 47 formed at one end thereof corresponding to the protrusions 43, and the elastic member 11 is connected between the protrusions 43 and the recesses 47, so that the elastic member 11 can move the locking member 39 along the surface of the fixing plate 40.

The other end of the locking component 39 is provided with a stop 45, the stop 45 is perpendicular to the locking component 39, and the stop 45 is used for increasing the longitudinal contact surface of the locking component 39, so that the end part of the limiting component 42 is effectively abutted with the locking component 39.

The locking member 39 is provided with a through slot 46, the through slot 46 having a length to ensure radial movement of the locking member 39. The inner wall of the through groove 46 near the groove 47 forms a circular arc shape, i.e. a clamping surface, and the locking part 39 and the positioning cone 10 are locked by matching the circular arc inner wall with the annular groove of the positioning cone 10.

The working principle of the embodiment is as follows:

when the mold is just placed on a vulcanizing machine, the connecting plate 41 is not detached, the screw for connecting the connecting plate 41 and the mold base 1 is abutted against one side (outer side) of the stop block 45 of the locking component 39, the other side (inner side) of the stop block 45 is abutted against the side wall of the groove of the mold base 1, the spring between the locking component 39 and the fixing plate 40 is in a maximum compression state, and at the moment, the through groove 46 of the locking component 39 is not interfered with the fixing plate 40 and the two coaxial through holes of the mold base 1.

Therefore, when the screw connecting the connecting plate 41 and the mold base 1 is not removed, the mold base 1 can be dropped to the correct position of the lower hot plate 3 by the positioning cone 10, and the mold exchanging mechanism 5 is in the unclamped state as shown in fig. 26 (a).

After the tire mold is placed on the lower hot plate 3, the connecting plate 41 needs to be detached, when a screw for connecting the connecting plate 41 with the mold base 1 is detached, the locking component 39 moves outwards along the radial direction of the mold base 1 under the pushing of the spring along with the screwing out of the screw until the outer side of the stop block 45 of the locking component 39 is abutted against the inner wall of the mold base 1.

Due to the movement of the locking component 39, the circular arc side of the through groove 46 of the locking component 39 enters the annular groove in the middle of the positioning cone 10, as shown in fig. 26(b), and at this time, the mold exchanging mechanism 5 completes the locking of the mold base 1 and the lower hot plate 3.

Example four:

the present embodiment provides a tire mold changing mechanism, as shown in fig. 27-29, comprising a fixing plate 49, a locking component 48, an elastic component 11 and a connecting plate 41, wherein the locking component 48 is arranged on the upper side of the fixing plate 49, one end of the fixing plate 49 and one end of the locking component 48 are matched with a positioning cone 10 of a lower hot plate 3, and the elastic component 11 is arranged between the other end of the locking component 48 and the inner wall of a mold base 1.

The connecting plate 41 is detachably connected to the outer side of the tire mold 2, the connecting plate 41 is in threaded connection with the locking component 48 through the limiting component 42, and the distance from the locking component 48 to the inner wall of the mold base 1 is changed by rotating the limiting component 42.

In this embodiment, the elastic member 11 is a spring, and the stopper member 42 is a screw.

As shown in fig. 30, an opening 50 is formed at one end of the fixing plate 49, the opening 50 is circular arc-shaped, and the fixing plate 40 is limited by the engagement of the opening 50 and the outer circumference of the positioning cone 10.

The fixing plate 49 has a stopper 51 on the upper surface of the other end thereof, and the stopper 51 restricts the displacement of the locking member 48.

As shown in fig. 31, one end of the locking component 48 is provided with a clamping surface 53, the clamping surface 53 is arc-shaped, the locking component 48 moves along the fixing plate 40 under the action of the limiting component 42 and the elastic component 11, and when the clamping surface 53 is clamped with the annular groove of the positioning cone 10, the mold changing mechanism 5 is in a locking state.

The upper surface of the other end of the locking component 48 is provided with a boss 52, the boss 52 is a matching part of the locking component 48, the boss 52 is provided with a threaded hole 54, and the axis of the threaded hole 54 is vertical to the axis of the clamping surface 53. The stop member 42 has a threaded section that engages the threaded bore 54 to allow the locking member 48 to move along the surface of the mounting plate 40 when the stop member 42 is rotated.

One end of the elastic component 11 is connected to the side of the boss 52 opposite to the clamping surface 53, and the other end of the elastic component 11 is connected to the inner wall of the mold base 1.

The number of the elastic components 11 can be set according to actual requirements, and two elastic components 11 are provided in the embodiment.

The working principle of the embodiment is as follows:

when the mold is just placed on the vulcanizer, the connecting plate 41 is not removed, and at this time, the screws connecting the connecting plate 41 and the mold base 1 are engaged with the screw holes 54 in the bosses 52 of the locking member 48, and since the screws are in a tightened state, the outer sides of the bosses 52 abut against the inner sides of the stoppers 51 of the fixing plates 49.

The spring between the boss 52 and the recess of the mold base 1 is at its maximum compression and the locking member 48 is at its outermost radial travel of the mold base 1 and does not interfere with the locating cone 10. Therefore, when the screw connecting the connecting plate 41 and the mold base 1 is not removed, the mold base 1 can be dropped to the correct position of the lower hot plate 3 by the positioning cone 10, and the mold exchanging mechanism 5 is in the unclamped state as shown in fig. 32 (a).

After the tire mold is placed on the lower hot plate 3, the connecting plate 41 needs to be detached, and when the screw connecting the connecting plate 41 and the mold base 1 is detached, the locking component 48 moves inwards along the radial direction of the mold base 1 under the pushing of the spring along with the screwing-out of the screw until the inner side of the boss 52 is abutted to the mold base 1.

Due to the movement of the locking component 48, the clamping surface 53 of the locking component 48 enters the annular groove in the middle of the positioning cone 10, as shown in fig. 32(b), and at this time, the mold exchanging mechanism 5 completes the locking of the mold base 1 and the lower hot plate 3.

Example five:

the embodiment provides a tire mold base, wherein at least two mold changing mechanisms 5 are circumferentially arranged on the mold base 1, and the mold changing mechanisms 5 adopt any one of the first embodiment, the second embodiment and the fourth embodiment.

In the prior art, the mold base 1 is connected with the lower hot plate 3 of the vulcanizing machine through a locking member 6, such as a screw.

The mold changing mechanism 5 of the first embodiment of the mold base 1 will be described in detail as an example:

as shown in fig. 2, at least two mold exchanging mechanisms 5 according to the first embodiment are circumferentially installed on the mold base 1. As shown in fig. 3, a groove is formed in the edge of the mold base 1, the mold changing mechanism 5 is installed in the groove, and the locking component 8 of the mold changing mechanism 5 can move along the groove.

Set up first heavy platform 20, the heavy platform 21 of second and through hole in the recess, first heavy platform 20 is located the heavy platform 21 downside of second, and first heavy platform 20 is used for fixed locking part 8's position, plays limiting displacement to locking part 8, makes locking part 8 only can follow base radial movement.

The second sinking platform 21 is used for mounting the first pressing plate 9, thereby limiting the axial position of the locking part 8 and the elastic part 11. The through hole is arranged on one side, far away from the edge, of the groove and is used for being matched with the positioning cone 10 on the lower hot plate 3 during installation, so that the positioning cone 10 has a positioning effect on the mold base 1.

The height of the groove in the middle of the positioning cone 10 corresponds to the height of the first sinking platform 20, and the locking component 8 is installed in the first sinking platform 20, so that the locking component 8 can be smoothly clamped into the groove in the middle of the positioning cone 10 in the radial movement process, and the locking effect is achieved.

The elastic component 11 is installed between the inner wall of the mold base 1 and the locking component 8 with a certain pretightening force, one end of the elastic component 11 is abutted against the mold base 1, and the other end is abutted against the locking component 8.

Example six:

the embodiment provides a vulcanizing machine which is provided with the tire mold base described in the fifth embodiment.

As shown in fig. 1, a lower hot plate 3 is installed on a fixing plate 4 of a vulcanizing machine, the circumferential position of a mold changing mechanism 5 corresponds to a T-shaped groove of the lower hot plate 3, a counter bore with the same diameter as the bottom of a positioning cone 10 is arranged at the upper part of the T-shaped groove, the positioning cone is arranged in the counter bore, a fixing block is arranged in the T-shaped groove, and the positioning cone 10 is fixed with the lower hot plate 3 through a screw and the fixing block.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (12)

1. The utility model provides a tire mold retooling mechanism which characterized by: the locking device comprises a locking component, an elastic component and a limiting component, wherein at least one side of the locking component is connected with the elastic component, and the limiting component is used for limiting a matching part of the locking component so as to enable the elastic component to keep the maximum compression state;

the locking component is provided with a clamping surface, and after the limiting component is removed, the clamping surface is clamped with the positioning cone of the lower hot plate under the action of the restoring force of the elastic component.

2. The tire mold changing mechanism of claim 1, wherein: the clamping surface is arranged at one end of the locking component, and the matching part is arranged at the other end of the locking component;

a first contact surface is arranged on one side of the matching portion, a first pressing plate is arranged on the top of the locking component, and a second contact surface opposite to the first contact surface is arranged on the first pressing plate.

3. The tire mold changing mechanism of claim 2, wherein: one side of the limiting component is provided with a first matching surface which can be abutted against the first contact surface, and the other side of the limiting component is provided with a second matching surface which can be abutted against the second contact surface; the first contact surface and the second contact surface are both inclined surfaces;

one end of the first pressing plate, which is far away from the second contact surface, is provided with a first clamping interface used for matching with the positioning cone.

4. The tire mold changing mechanism of claim 1, wherein: the locking part downside sets gradually second clamp plate and baffle, and spacing part perpendicular to second clamp plate and baffle, and spacing part has the lug that can laminate with cooperation portion.

5. The tire mold exchanging mechanism according to claim 4, wherein: the limiting part comprises a tensioning piece and a limiting part detachably connected with the tensioning piece; the baffle is provided with a groove, the limiting part is arranged in the groove, and the limiting part can be separated from the upper surface of the groove under the action of the tensioning piece.

6. The tire mold exchanging mechanism according to claim 4, wherein: the two sides of the lug are inclined planes; the locking component is provided with a first through groove, and the side wall of the first through groove forms a matching part matched with the lug; the second pressing plate is provided with a second through groove, and the side wall of the second through groove is provided with a table top matched with the convex block.

7. The tire mold exchanging mechanism according to claim 4, wherein: the two sides of the locking component are provided with extending parts, the upper surface of the second pressure plate is provided with a protruding part, and the elastic component is arranged between the extending parts and the protruding parts;

the clamping surface is arranged at one end of the locking component, and a second clamping interface used for matching with the positioning cone is arranged at one end of the second pressing plate.

8. The tire mold changing mechanism of claim 1, wherein: the tire mold further comprises a connecting plate used for connecting the tire mold, the limiting component vertically penetrates through the connecting plate, and the end part of the limiting component is connected with the locking component.

9. The tire mold exchanging mechanism of claim 8, wherein: one end of the limiting component is abutted against the locking component;

or the limiting component is in threaded connection with the locking component.

10. The tire mold exchanging mechanism of claim 8, wherein: a fixing plate is arranged on the lower side of the locking component, and an opening or a through hole used for matching with the positioning cone is formed in the fixing plate;

the clamping surface is arranged at one end of the locking component; or the locking component is provided with a through groove for the positioning cone to pass through, and the clamping surface is arranged on the inner surface of the through groove.

11. A tire mold base, characterized by: a die change mechanism as claimed in any one of claims 1 to 10, wherein at least two die change mechanisms are arranged at intervals circumferentially along the die base.

12. A vulcanizer, characterized by: a tire mold base as in claim 11 is provided.

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