CN216544818U - A 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

A 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 mold changing mechanism, a tire mold base and a vulcanizer.

Background technique

When the tire factory vulcanizes tires of different specifications and models, the tire changing molds used must be replaced frequently. However, the existing mold replacement method is to manually connect the base of the mold and the lower hot plate of the vulcanizer with screws after the tire mold is set up. In the process of screw tightening, it is also necessary to use a wrench and other tools to operate. Manual replacement of molds is not only cumbersome to operate, but also has low replacement efficiency, which affects the vulcanization efficiency of tire molds.

In order to replace the traditional way of bolting the hot plate of the vulcanizer and the tire mold, some quick-connect devices have appeared. For example, the prior art discloses a method for clamping a vulcanizer hot plate, an upper ring and a base of a tire mold, which consists of an upper ring of the tire mold, a base, and a clamping device. The clamping device is fixed on the lower hot plate of the vulcanizer, and the clamping The device is composed of a pressing block, a hydraulic cylinder and a motor, which can realize the rapid clamping of the upper ring and the base of the tire mold by the hot plate of the vulcanizer.

Although the above solution realizes the automatic and fast clamping of the tire mold and the hot plate of the vulcanizer, it requires hydraulic cylinders and motors as additional power sources.

Utility model content

In view of the deficiencies in the prior art, the purpose of this utility model is to provide a tire mold mold changing mechanism, a tire mold base and a vulcanizing machine. The connection efficiency of the lower hot plate and the tire mold.

In order to achieve the above object, the present invention is realized through the following technical solutions:

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

A tire mold changing mechanism comprises a locking part, an elastic part and a limit part, the locking part is connected with the elastic part at least one side, and the limit part is used to limit the matching part of the locking part, so that the elastic part can keep the maximum compression state;

The locking part has a clamping surface, and after the limiting part is released, the clamping surface is engaged with the positioning cone of the lower hot plate under the action of the restoring force of the elastic part.

Through the above design, the locking member can move radially along the mold base under the action of the limiting member, so that the mold changing mechanism is in a loose state; after the limiting member is released, the locking member moves in the reverse direction under the action of the elastic member, and the mold is replaced The mechanism is locked.

As an optional embodiment, the engaging surface is provided at one end of the locking member, and the matching portion is provided at the other end of the locking member;

One side of the matching portion is provided with a first contact surface, the top of the locking member is provided with a first pressing plate, and the first pressing plate is provided with a second contact surface opposite to the first contact surface.

As an optional embodiment, one side of the limiting member has a first mating surface capable of abutting with the first contact surface, and the other side has a second mating surface capable of abutting with the second contact surface; Both the first contact surface and the second contact surface are inclined surfaces;

One end of the first pressing plate away from the second contact surface is provided with a first card interface for matching the positioning cone.

As an optional embodiment, a second pressing plate and a baffle are arranged on the lower side of the locking member in sequence, the limiting member is perpendicular to the second pressing plate and the baffle, and the limiting member has a protrusion that can fit with the matching portion.

As an optional embodiment, the limiting member includes a tensioning member and a limiting member that is detachably connected to the tensioning member; the baffle is provided with a groove, and the limiting member is arranged in the groove and acts on the tensioning member. The lower limit part can be disengaged from the upper surface of the groove.

As an optional embodiment, the two sides of the bump are inclined surfaces; the locking member is provided with a first through slot, and the side wall of the first through slot forms a matching portion that matches the bump; The second pressure plate is provided with a second through groove, and the side wall of the second through groove has a table surface matched with the protruding block.

As an optional embodiment, the locking member has overhangs on both sides, the second pressing plate has a raised portion on the upper surface, and the elastic member is arranged between the overhang and the raised portion;

The clamping surface is provided at one end of the locking member, and one end of the second pressing plate is provided with a second clamping interface for matching the positioning cone.

As an optional embodiment, it also includes a connecting plate for connecting the tire mold, the limiting member vertically passes through the connecting plate, and the end of the limiting member is connected with the locking member.

As an optional embodiment, one end of the limiting member is in abutment with the locking member;

Alternatively, the limiting member is threadedly connected with the locking member.

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

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

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

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

In a third aspect, a vulcanizer is provided.

A vulcanizer is provided with the tire mold base.

The beneficial effects of the present utility model are as follows:

The locking part of the utility model can move along the radial direction of the mold base under the action of the limiting part, so that the mold changing mechanism is in a loose state; after the limiting part is released, the locking part moves in the reverse direction under the action of the elastic part, and the mold changes The mechanism is in a locked state; the connection and disassembly of the mold base and the lower hot plate can be realized; instead of the original mold installation method of manually installing and removing screws, the connection efficiency of the lower hot plate and the tire mold of the vulcanizer is significantly improved; and no oil cylinder is required. Cylinders and other power sources.

The mold changing mechanism of the present utility model can be realized by different structures, including: the elastic part is arranged between the mold base and the locking part, and the pressing plate and the locking part form a sliding channel through the oppositely arranged contact surfaces; The limit part makes the mold changing mechanism in a loose state; by taking out the limit part, the mold change mechanism is in a locked state under the elastic force of the elastic part;

Alternatively, the mold changing mechanism includes a baffle plate, a pressing plate, and a locking member, and the locking member includes a tensioning member and a sliding block. It is in a loose state; after removing the tensioning piece, the sliding block moves down along the groove until it contacts the surface of the groove, and the locking block is engaged with the positioning cone under the action of the restoring force of the elastic part;

Or, the mold changing mechanism includes a fixing plate, a locking member, and a connecting plate, and the locking member changes the position of the locking member through the limiting member, so as to realize the change of the locking and loosening states of the mold changing mechanism.

Description of drawings

The accompanying drawings, which constitute a part of the present invention, are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention.

Fig. 1 is the tire mould of the present utility model embodiment 6 and the schematic diagram of vulcanizer installation;

Fig. 2 is the schematic diagram of the installation of the mold changing mechanism according to the fifth embodiment of the present invention;

3 is a schematic structural diagram of a mold changing mechanism according to Embodiment 1 of the present invention;

Fig. 4 is the partial enlarged view of A place in Fig. 3;

Fig. 5 is the installation sectional view of the mold changing mechanism of the first embodiment of the present utility model;

6 is a schematic structural diagram of a lock block according to Embodiment 1 of the present invention;

7 is a schematic diagram of the structure of the pressing plate according to the first embodiment of the present invention;

Figure 8 (a) is a schematic diagram of the loosening state of the mold changing mechanism of the first embodiment of the present invention;

Figure 8(b) is a schematic diagram of the locking state of the mold changing mechanism according to the first embodiment of the present invention;

FIG. 9 is a schematic diagram of the installation of the connecting mechanism according to the second embodiment of the present invention;

10 is a schematic structural diagram of the connection mechanism of the second embodiment of the present invention;

Fig. 11 is a partial enlarged view of part B of Fig. 10;

12 is a cross-sectional view of the installation of the connecting mechanism according to the second embodiment of the present invention;

13 is a schematic diagram of the connection between the sliding block and the tension member according to the second embodiment of the present invention;

14 is a schematic structural diagram of a locking block according to Embodiment 2 of the present invention;

15 is a schematic diagram of the structure of the pressing plate according to the second embodiment of the present invention;

FIG. 16 is a schematic diagram of the loosening state of the connection mechanism according to the second embodiment of the present invention;

Fig. 17 is a partial enlarged view at C of Fig. 16;

18 is a schematic diagram of the locking state of the connecting mechanism according to the second embodiment of the present invention;

Fig. 19 is a partial enlarged view at D of Fig. 18;

20 is a schematic diagram of the installation of the installation mechanism of the third embodiment of the present invention;

21 is a schematic structural diagram of the installation mechanism of the third embodiment of the present invention;

Fig. 22 is a partial enlarged view of E at Fig. 21;

23 is a cross-sectional view of the installation mechanism of the third embodiment of the present invention;

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

25 is a schematic structural diagram of a lock block according to Embodiment 3 of the present invention;

Figure 26(a) is a schematic diagram of the loosening state of the mounting mechanism of the third embodiment of the present invention;

Figure 26(b) is a schematic diagram of the locking state of the mounting mechanism according to the third embodiment of the present invention;

27 is a schematic structural diagram of the installation mechanism of the fourth embodiment of the present invention;

Fig. 28 is a partial enlarged view of F in Fig. 27;

29 is a cross-sectional view of the installation mechanism of the fourth embodiment of the present invention;

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

31 is a schematic structural diagram of a lock block according to Embodiment 4 of the present invention;

Figure 32 (a) is a schematic diagram of the loosening state of the mounting mechanism of the fourth embodiment of the present invention;

Figure 32(b) is a schematic diagram of the locking state of the installation mechanism according to the fourth embodiment of the present invention.

Among them, 1. Mold base, 2. Tire mold, 3. Lower hot plate, 4. Fixed plate, 5. Mold changing mechanism, 6. Locking part, 7. Limiting part, 8. Locking part, 9. Pressing plate , 10, positioning cone, 11, elastic member, 12, opening, 13, first slot, 14, matching part, 15, first contact surface, 16, first card interface, 17, second slot, 18, Second contact surface, 19, slider, 20, first sink, 21, second sink, 22, second pressure plate, 23, sliding block, 24, tension member, 25, locking member, 26, stopper Plate, 27, Bump, 28, Center bulge, 29, Inclined surface, 30, Snap surface, 31, First through slot, 32, Overhang, 33, First table, 34, Second card interface, 35 , the second through groove, 36, the convex part, 37, the second table, 38, the groove,

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

Detailed ways

Example 1:

This embodiment provides a tire mold changing mechanism, which is used for connection and locking of the vulcanizing machine and the tire mold.

As shown in FIGS. 3-5 , the mold changing mechanism 5 includes a first pressing plate 9 , an elastic member 11 , a locking member 8 and a limiting member 7 , at least one side of the locking member 8 is connected to the elastic member 11 , and the limiting member 7 is used for It abuts against the matching portion of the locking member 8 to keep the elastic member 11 in the maximum compressed state; the locking member 8 has a clamping surface, after releasing the limiting member 7, under the action of the restoring force of the elastic member 11, the clamping surface and the lower The positioning cones 10 of the hot plate 3 are engaged.

The first pressing plate 9 is arranged on the top of the locking member 8 , and the limiting member 7 is inserted into the sliding channel formed by the first pressing plate 9 and the locking member 8 only when necessary. One end of the elastic member 11 is in contact with the locking member 8 , and the other end is used for abutting against the inner wall of the mold base 1 . Preferably, the elastic member 11 is a spring.

The limiting member 7 can move the locking member 9 along the radial direction of the mold base 1 under the action of downward pressure, and change the compression state of the elastic member 11 between the mold base 1 and the locking member 8; 11 Under the action of the restoring force, the locking member 8 moves in the opposite direction 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 main body, and one end of the locking member main body has a protruding portion. The main body of the locking member in this embodiment has a rectangular structure, and an opening 12 is provided at one end of the locking member away from the protruding portion.

Of course, in other embodiments, the main body of the locking member may also have other shapes, such as trapezoid, arc, and the like.

The opening 12 has a transition arc structure, so that the opening 12 of the locking member 8 can be smoothly inserted into the positioning cone 10 during the recovery process of the elastic member 11 , and then locked with the positioning cone 10 after the recovery is completed.

The opening 12 includes a first circular arc segment, a second circular arc segment and a third circular arc segment that are connected as a whole, wherein the second circular arc segment is adapted to the positioning cone 19 and is a clamping surface, in the locked state The second arc segment is in contact with the outer wall of the positioning cone 19 .

The first circular arc segment and the third circular arc segment are symmetrical with respect to the center line of the second circular arc segment, and form an outward expansion structure, and the outward expansion structure plays a guiding role.

In this embodiment, the protruding portion is composed of two rectangular blocks arranged at intervals, and a first slot 13 is formed between the two rectangular blocks. A matching portion 14 is installed in the first card slot 13 , and the matching portion 14 is installed at one end away from the main body of the locking member.

Both sides of the raised portion are at a certain distance from the edge of the main body of the locking member, forming an installation space for the elastic member 11 , and the elastic member 11 is provided on one or both sides of the raised portion. The structure of the protruding portion is not limited to the rectangular block form in this embodiment, and can be specifically set according to actual installation requirements.

The surface of the matching portion 14 facing the inner side of the first slot 13 is the first contact surface 15 . The first contact surface 15 is used to fit the limiting member 7 , and the locking member 8 is driven by the limiting member 7 abutting against the first contact surface 15 . Move radially along the mold base.

Preferably, the first contact surface 15 is an inclined surface, so as to play a better guiding role.

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 card interface 16, and the other end is formed with a second card slot 17; the second card slot 17 corresponds to Above the first card slot 13 , the two form a sliding channel for the limiting member 7 .

The second slot 17 is opened inward from the end of the first pressing plate 9 . The closed end of the second slot 17 is provided with a second contact surface 18 . squeezing force.

Preferably, the second contact surface 18 is also an inclined surface, and its inclined direction is opposite to that of the first contact surface 13 .

The first card interface 16 is arc-shaped. In this embodiment, the opening 12 and the first card interface 16 are used for clamping the positioning cone 10 . Of course, in other embodiments, the shape of the first pressing plate 9 can be adaptively adjusted.

The limiting member 7 is not fixedly connected with other components, and one side has a first mating surface that can abut with the first contact surface 15 , and the other side has a second mating surface that can abut with the second contact surface 18 . The first mating surface and the second mating surface of the embodiment are both inclined surfaces, that is, the limiting member 7 is a V-shaped block.

The limiting member 7 of this embodiment can be pressed down along the sliding channel, and the locking member 8 moves radially along the mold base under the elastic force of the elastic member 11. When the elastic member 11 is in the maximum compression state, due to the V of the limiting member 7 It is in contact with the corresponding inclined surfaces of the locking member 8 and the first pressing plate 9, and the position of the limiting member 7 limits the displacement of the locking member 8, so that the mold changing mechanism 5 is in a loose state.

After the limiting member 7 is taken out, under the action of the elastic member 11, the locking member 8 moves radially along the mold base until the opening 12 of the locking member 8 moves into the groove in the middle of the positioning cone 10, and the mold changing mechanism 5 is in the locked state.

The working principle of this embodiment is:

The mold changing mechanism 5 realizes the connection and release of the vulcanizer and the tire mold 2 through the action state of the tire mold 2 during use.

As shown in Figure 8(a), when the tire mold 2 is just placed on the vulcanizing machine, the slider 19 in the tire mold 2 is located on the mold base 1, and the bottom surface of the slider 19 is in contact with the upper end surface of the limiting member 7 at this time. The elastic member 11 in the mold changing mechanism 5 is in a state of maximum compression, and the elastic member 11 bears against the locking 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 in the The correct position of the vulcanizing machine, at this time, the mold changing mechanism 5 is in a loose state.

As shown in Fig. 8(b), after the tire mold 2 is placed on the vulcanizer, connect the tire mold 2 to the upper hot plate 3, remove the tension bolt or fixing plate on the tire mold 2, and open the mold. The block 19 moves upwards away from the mould base 1 .

Take out the limiting member 7, under the action of the elastic member 11, the locking member 8 will move along the groove of the mold base 1, and finally the head of the locking member 8 will move into the groove in the middle of the positioning cone 10, and the mold changing mechanism 5 In the locked state, the connection between the mold base 1 and the vulcanizing machine is realized.

The tire mold 2 no longer needs to adjust the mold changing mechanism 5 in normal use. It is only necessary to place the limiting member 7 between the first pressing plate 9 and the locking member 8 during the next mold change, and then connect the tire mold 2. , when the slider is seated on the mold base 1, the mold changing mechanism 5 will be automatically released, and then the mold changing can be continued.

Embodiment 2:

This embodiment provides a mold changing mechanism for a tire mold. As shown in FIG. 9 and FIG. 10 , the mold changing mechanism 5 is installed on the mold base 1 .

As shown in Figures 11-13, it includes a locking member 25, an elastic member 11, a baffle 26, a second pressing plate 22 and a limiting member. The limiting member includes a tension member 24 and a sliding block 23, the baffle 26, the first The second pressing plate 22 and the locking member 25 are arranged sequentially from bottom to top.

The bottom surface of the baffle plate 26 is the contact surface with the mold base 1 , and the baffle plate 26 is located on the side of the positioning cone 10 of the lower hot plate 3 and fits with the outer circumference of the bottom of the positioning cone 10 . A groove 38 is opened in the baffle 26 , and the tensioning member 24 is perpendicular to the baffle 26 and is connected to the sliding block 23 arranged in the groove 38 ;

The elastic member 11 is arranged between the second pressing plate 22 and the locking member 25 , so that the locking member 25 can move in the radial direction of the mold base 1 . The elastic member 11 is a member with stretchability. Preferably, the elastic member 11 in this embodiment uses a spring.

The sliding block 23 includes a sliding block body and a central protrusion 28 arranged on the sliding block body. The tensioning member 24 is connected with the central protrusion 28 to ensure the movement stability of the sliding block 23 . The main body of the sliding block is in clearance fit with the groove 38 of the baffle plate 26 in the circumferential direction, so that the sliding block 23 can smoothly move up and down along the groove 38 . The shape of the main body of the sliding block is adapted to the shape of the groove 38 . In this embodiment, the main structure of the sliding block is rectangular.

Of course, in other embodiments, the sliding block body can also be in a disc shape or other shapes.

The tensioning member 24 in this embodiment is a tensioning bolt, a threaded hole is formed in the central protrusion 28, and the tensioning bolt is threadedly connected with the sliding block 23, which is convenient for disassembly and assembly. After removing the tension bolt, the sliding block 23 descends along the groove 38 until it contacts the surface of the groove 38 .

In this embodiment, the central protrusion 28 is arranged in a stepped shape; when the mold changing mechanism 5 is in use, the central protrusion 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 tightened, the sliding block 23 is at the upper limit position in the groove 38 of the baffle 26 , and the upper end surface of the main body of the sliding block 23 abuts the lower end surface of the second pressing plate 22 .

It can be understood that, in other embodiments, the central protrusion 28 may also be in other forms.

A convex block 27 is provided on one side of the central protrusion 28, through which the convex block 27 cooperates with the second pressing plate 22 and the locking member 25, and the convex block 27 is not fixedly connected with other components.

In this embodiment, the protruding block 27 is similar to a key structure and has two V-shaped blocks spaced apart at a certain distance. Through the V-shaped block structure, inclined surfaces 29 are formed on both sides of the bump 27 , and the inclined surfaces 29 are matched with the corresponding table surfaces of the locking member 25 and the second pressing plate 22 .

Of course, in other embodiments, the bump 27 can also be other structures, for example, the bump 27 is an inverted single V-shaped block structure.

As shown in FIG. 14 , the locking member 25 defines a first through groove 31 , and the tensioning member 24 passes through the first through groove 31 . Since the locking member 25 can move along the radial direction of the mold base 1, the radial position of the tension member 24 remains unchanged, and the inner wall of the first through groove 31 cooperates with the convex block 27, so 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, and the matching part has a first table 33 which is adapted to the inclined surface 29 of one side of the convex block 27. In order to adapt to the connection structure of the two V-shaped blocks, the first table 33 is provided with two , and both are inclined planes. There is a certain distance between the two first mesas 33 , and the distance is consistent with the distance between the two V-shaped blocks.

One end of the locking member 25 is provided with a clamping surface 30, the clamping surface 30 is in the shape of a circular arc, and its diameter is adapted to the positioning cone 10; when the locking member 25 is in a locked state, the clamping surface 30 is clamped on the positioning cone. 10 in the annular groove.

Both sides of the locking member 25 have overhangs 32, and the positions of the overhangs 32 correspond to the raised portions 36 on the second pressing plate 22; the elastic member 11 is connected between the overhangs 32 and the raised portions 36, And has a certain preload.

As shown in FIG. 15 , the protruding portion 36 is provided on one end of the second pressing plate 22 , and the other end of the second pressing plate 22 is provided with a second clamping interface 34 ; fit.

The second clamping interface 34 is clamped on the outside of the positioning cone 10 to limit the position of the second pressing plate 22 . The second pressing plate 22 defines a second through slot 35 , and the inner wall of the second through slot 35 has a second mesa 37 , and the second mesa 37 is matched with the slope 29 on the other side of the bump 27 . The first table surface 33 and the second table surface 37 are in contact with the inclined surfaces 29 on both sides of the protruding block 27 , so as to realize the positioning and guiding effect of the sliding block 23 .

When the mold changing mechanism 5 of this embodiment is installed, the baffle plate 26 and the second pressing plate 22 are connected to the mold base 1 by screws. A semicircular hole is provided on one side of the baffle plate 26 , and the baffle plate 26 can be formed with the semicircular hole on the mold base 1 . A complete round hole, the round hole can cooperate with the positioning cone 10 of the lower hot plate 3 when the mold is placed on the lower hot plate 3, and plays a role in positioning the mold.

The positioning cone 10 is fixed with the lower hot plate 3 by screws and fixing blocks, the fixing block is located in the T-shaped groove of the lower hot plate 3, the upper end of the T-shaped groove is provided with a countersunk hole with the same diameter as the bottom of the positioning cone 10, and the bottom surface of the positioning cone 10 is the same as the bottom of the positioning cone 10. The bottom surface of the counterbore is in contact, and the position of the positioning cone 10 is defined by the counterbore.

The working principle of this embodiment is:

As shown in Figures 16 and 17, when the mold is just placed on the vulcanizing machine, the tension bolts are not removed, and the tension bolts are connected with the sliding block 23 by threads. Since the sliding block 23 can move up and down in the groove of the baffle plate 26, but If it cannot rotate and the tension bolt is in a tightened state, the sliding block 23 is at the upper limit position in the groove 38 at this time.

The upper end surface of the main body of the sliding block is in contact with the lower end surface of the second pressing plate 22, and the V-shaped blocks of the convex block 27 are respectively in contact with the second pressing plate 22 and the locking member 25, and the locking member 25 is located at the leftmost end of its movement stroke (the mold base 1 end away from the center), at this time, the elastic part 11 is compressed to the maximum extent by the locking part 25, and the positioning cone 10 plays a role in positioning the mold to ensure that the mold is in the correct position when placed on the vulcanizing machine, and the mold changing mechanism 5 is in the release state.

As shown in Figures 18 and 19, after removing the tension bolt, the sliding block 23 will descend, the lower surface of the sliding block 23 will abut with the surface of the groove 38 of the baffle plate 26, and the convex block 27 will also move downward, and the convex block 23 will move downward. The bottom surface of 27 is still located on the upper end surface of the main body of the sliding block, and the V-shaped block of the convex block 27 is in contact with the second pressing plate 22 and the inclined surface 29 of the locking member 25 .

Since the elastic member 11 has been compressed to the maximum stroke before, after the protrusion 27 moves downward, the elastic force of the elastic member 11 moves the locking member 25 to the right until the locking member 25 extends into the annular groove in the middle of the positioning cone 10 The upper and lower surfaces of the annular groove have a certain distance from the upper and lower surfaces of the locking member 25 to ensure that the locking member 25 will not interfere with the positioning cone 10 during the movement process, and the connection between the mold base 1 and the lower hot plate 3 is completed.

Embodiment three:

This embodiment provides a tire mold changing mechanism. As shown in FIG. 20 , the mold changing mechanism 5 is located in the mold base 3 .

As shown in FIGS. 21-23 , it includes a fixing plate 40 , a locking member 39 and an elastic member 11 . The locking member 39 is arranged on the upper side of the fixing plate 40 , and the positioning cone 10 of the lower hot plate 3 is locked from the fixing plate 40 and the fixing plate 40 . through part 39.

The fixed plate 40 is installed on the mold base 1, and the elastic member 11 is arranged between the fixed plate 40 and the locking member 39 with a certain pre-tightening force. Under the action of the restoring force of the elastic member 11, the locking member 39 can follow the diameter of the mold base 1. move upward, so that the locking member 39 is locked with the positioning cone 10 .

Preferably, the elastic member 11 is a spring.

The mold changing mechanism 5 in this embodiment further includes a connecting plate 41, which is used as a connecting component between the tire mold 2 and the mold base 1, and is disposed on the outer circumferential side of the tire mold 2 and the mold base 1, and is connected with the tire mold 2, the mold base 1, and the tire mold 2. The mold base 1 is detachably connected.

The connecting plate 41 is connected to the mold base 1 through the limiting member 42, and one end of the limiting member 42 extending into the mold base 1 is in contact with the locking member 39, and the side of the locking member 39 forms a matching portion; The length of the base 1 changes the position of the locking member 39 . After the limiting member 42 is tightened, the elastic member 11 is in a state of maximum compression, and the mold changing mechanism 5 is in a loosened state at this time.

In this embodiment, the limiting member 42 is a screw; of course, in other embodiments, the limiting member 42 may also be other components such as a pin shaft.

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

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

Two protrusions 43 are provided on the upper surface of one end of the fixing plate 40 , and the number of the protrusions 43 can be adjusted adaptively.

As shown in FIG. 25 , two grooves 47 corresponding to the protrusions 43 are defined at one end of the locking member 39 , the elastic member 11 is connected between the protrusions 43 and the grooves 47 , and the elastic member 11 enables the locking member 39 to be fixed along the The surface of the plate 40 moves.

The other end of the locking member 39 has a stopper 45, the stopper 45 is perpendicular to the locking member 39, and the longitudinal contact surface of the locking member 39 is increased through the stopper 45, so that the end of the limiting member 42 can effectively abut against the locking member 39. catch.

The locking member 39 is provided with a through groove 46 , and the through groove 46 has a certain length to ensure the radial movement of the locking member 39 . The inner wall of the through groove 46 near the groove 47 forms a circular arc, that is, the clamping surface.

The working principle of this embodiment is:

When the mold is just placed on the vulcanizing machine, the connecting plate 41 is not disassembled, and the screws connecting the connecting plate 41 and the mold base 1 are in contact with one side (outside) of the block 45 of the locking member 39, and the other side (inside) of the block 45 is in contact. ) is in contact with the side wall of the groove of the mold base 1, and the spring between the locking member 39 and the fixing plate 40 is in a state of maximum compression. At this time, the through groove 46 of the locking member 39 is in contact with the two Coaxial through holes do not interfere.

Therefore, when the screws connecting the connecting plate 41 and the mold base 1 are not disassembled, the mold base 1 can fall to the correct position of the lower hot plate 3 under the action of the positioning cone 10. At this time, the mold changing mechanism 5 is as shown in Fig. 26(a) the released state.

After the tire mold is placed on the lower hot plate 3, the connecting plate 41 needs to be removed. When the screws connecting the connecting plate 41 and the mold base 1 are removed, the locking member 39 is driven by the spring along the diameter of the mold base 1 as the screws are unscrewed. Move outward until the outer side of the block 45 of the locking member 39 abuts against the inner wall of the mold base 1 .

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

Embodiment 4:

This embodiment provides a tire mold changing mechanism, as shown in FIGS. 27-29 , including a fixing plate 49 , a locking member 48 , an elastic member 11 and a connecting plate 41 , and the locking member 48 is arranged on the upper side of the fixing plate 49 One end of the fixing plate 49 and the locking member 48 is matched with the positioning cone 10 of the lower hot plate 3 , and the elastic member 11 is installed between the other end of the locking member 48 and the inner wall of the mold base 1 .

The connecting plate 41 is detachably connected to the outside of the tire mold 2, and the connecting plate 41 is threadedly connected to the locking member 48 through the limiting member 42, and the distance between the locking member 48 and the inner wall of the mold base 1 can be changed by rotating the limiting member 42.

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

As shown in FIG. 30 , one end of the fixing plate 49 is provided with an opening 50 , and the opening 50 is arc-shaped.

A limit block 51 is provided on the upper surface of the other end of the fixing plate 49 , and the displacement of the locking member 48 is limited by the limit block 51 .

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

The upper surface of the other end of the locking member 48 is provided with a boss 52 . The boss 52 is the matching portion of the locking member 48 . The limiting member 42 has a threaded section, and the threaded section is matched with the threaded hole 54 , and the locking member 48 can move along the surface of the fixing plate 40 when the limiting member 42 is rotated.

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

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

The working principle of this embodiment is:

When the mold is just placed on the vulcanizing machine, the connecting plate 41 is not disassembled. At this time, the screw connecting the connecting plate 41 and the mold base 1 is matched with the threaded hole 54 on the boss 52 of the locking part 48. Since the screw is in a tightened state, the convex The outer side of the table 52 is in contact with the inner side of the stopper 51 of the fixing plate 49 .

The spring between the boss 52 and the groove of the mold base 1 is in a state of maximum compression, and the locking member 48 is at the outermost side of the radial stroke of the mold base 1 and will not interfere with the positioning cone 10 . Therefore, when the screws connecting the connecting plate 41 and the mold base 1 are not disassembled, the mold base 1 can fall to the correct position of the lower hot plate 3 under the action of the positioning cone 10, and the mold changing mechanism 5 is in the position shown in Figure 32(a). the released state.

After the tire mold is placed on the lower hot plate 3, the connecting plate 41 needs to be removed. When the screws connecting the connecting plate 41 and the mold base 1 are removed, as the screws are unscrewed, the locking member 48 is pushed along the diameter of the mold base 1 by the spring. Move inward until the inner side of the boss 52 abuts with the mold base 1 .

Due to the movement of the locking member 48, the engaging surface 53 of the locking member 48 enters the annular groove in the middle of the positioning cone 10, as shown in FIG. The locking of the hot plate 3.

Embodiment 5:

This embodiment provides a tire mold base. At least two mold changing mechanisms 5 are installed circumferentially on the mold base 1, and the mold changing mechanism 5 adopts any of the structures of the first to fourth embodiments.

In the prior art, the mold base 1 and the lower hot plate 3 of the vulcanizer are connected by a locking member 6, such as a screw connection.

Taking the mold base 1 to install the mold changing mechanism 5 described in the first embodiment as an example to describe in detail:

As shown in FIG. 2 , the mold base 1 is circumferentially installed with at least two mold changing mechanisms 5 described in the first embodiment. As shown in FIG. 3 , the edge of the mold base 1 is provided with a groove, the mold changing mechanism 5 is installed in the groove, and the locking member 8 of the mold changing mechanism 5 can move along the groove.

A first sinking platform 20, a second sinking platform 21 and a through hole are arranged in the groove, the first sinking platform 20 is located on the lower side of the second sinking platform 21, and the first sinking platform 20 is used to fix the position of the locking member 8 and lock the The tightening member 8 acts as a limit, so that the locking member 8 can only move in the radial direction of the base.

The second sinking platform 21 is used to install the first pressing plate 9 so as to limit the axial positions of the locking member 8 and the elastic member 11 . The through hole is provided on the side of the groove away from the edge, and is used to cooperate with the positioning cone 10 on the lower hot plate 3 during installation, so that the positioning cone 10 can play the role of positioning the mold base 1 .

The height of the groove in the middle part of the positioning cone 10 corresponds to the height of the first sinking platform 20. Since the locking component 8 is installed in the first sinking platform 20, the locking component 8 can be smoothly snapped and positioned during the radial movement. The cone 10 is grooved in the middle, so that it has a locking effect.

The elastic member 11 is installed between the inner wall of the mold base 1 and the locking member 8 with a certain pre-tightening force.

Embodiment 6:

This embodiment provides a vulcanizer, which is provided with the tire mold base described in the fifth embodiment.

As shown in FIG. 1 , the fixing plate 4 of the vulcanizer is installed with the lower hot plate 3 , the circumferential position of the mold changing mechanism 5 corresponds to the T-shaped groove of the lower hot plate 3 , and the upper part of the T-shaped groove is provided with a diameter corresponding to the bottom of the positioning cone 10 . For the same counterbore, the positioning cone seat is arranged in the counterbore, and there is a fixing block in the T-shaped groove. The positioning cone 10 is fixed to the lower hot plate 3 by screws and fixing blocks.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this 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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