Vulcanizing machine capable of quickly replacing mold

Abstract

The utility model discloses a vulcanizing machine capable of quickly replacing a mold, which belongs to the technical field of vulcanizing equipment, and comprises a machine body, a base and a driving rod, and the driving rod is respectively connected with a first driving component and a second driving component; a connector is arranged on the driving rod; the mold is arranged on the base; comprising an upper die and a lower die, a first connecting part and a second connecting part are arranged on the upper die; the first connecting part is matched with the connector; the upper pot cover is provided with a rotating ring capable of rotating; the rotating ring is provided with a first matching part and a third connecting part, the first matching part is matched with the connector, and the third connecting part is matched with the second connecting part; the connector can move to a first position and a second position and can rotate to a first angle, a second angle and a third angle; the connector on the driving rod can be respectively matched with the first connecting part and the rotating ring, so that connection and separation between the driving rod and the mold and between the upper pot cover and the mold can be realized, and the mounting and dismounting processes of the mold are simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of vulcanizing equipment, in particular to a vulcanizing machine capable of quickly replacing molds. Background Art

[0002] A vulcanizer is a hot-pressing device that can vulcanize rubber and plastic products. The vulcanizer needs to be used with a mold with a specific shape of cavity to vulcanize rubber into rubber and plastic products of specific shapes. When producing rubber and plastic products of different shapes, the mold on the vulcanizer needs to be replaced.

[0003] At present, when disassembling and assembling the mold on the vulcanizer, workers are usually required to climb onto the upper pot cover of the vulcanizer with tools such as wrenches, and install or remove the connecting bolts between the upper pot cover and the upper mold of the mold one by one. The workers have to work at heights and in a harsh working environment. The labor intensity is high and there are also great safety hazards. In addition, there are also some mold changing devices for vulcanizers that can automatically change the mold, but such mold changing devices have a complex structure, and the cost and energy consumption are very high.

[0004] Therefore, researching and designing a vulcanizing machine that can reliably realize the quick connection or separation between the mold and the vulcanizer, simplify the mold installation and disassembly process, no longer require workers to work at high altitudes, and has low cost and energy consumption and can quickly replace the mold is a problem that needs to be solved at this stage. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a vulcanizing machine that can quickly replace molds. The connecting head on the driving rod can cooperate with the first connecting part and the swivel respectively, so as to conveniently realize the connection and disconnection between the driving rod and the mold and between the upper pot cover and the mold, which can greatly simplify the installation and disassembly process of the mold, and no longer requires workers to work at high altitudes. It has a simple structure and low cost and energy consumption.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] The utility model provides a vulcanizing machine capable of quickly replacing molds, comprising:

[0008] A machine body, the machine body comprising a base and a vertically arranged driving rod, the driving rod being respectively connected with a first driving assembly for driving the axial movement thereof and a second driving assembly for driving the axial rotation thereof; a connecting head is provided at the bottom of the driving rod;

[0009] A mold, the mold is detachably arranged on the base; the mold comprises an upper mold and a lower mold; a first connecting portion and a second connecting portion are arranged on the upper surface of the upper mold; the first connecting portion matches the connecting head;

[0010] An upper pot cover, wherein the upper pot cover is provided with a rotating ring, and the rotating ring can rotate around its axis; the rotating ring has a first matching portion and a third connecting portion, the first matching portion matches the connecting head, and the third connecting portion matches the second connecting portion;

[0011] The connecting head can be moved to a first position and a second position, and the connecting head can be rotated to a first angle, a second angle and a third angle; when the connecting head is located at the first position and at the first angle, the connecting head cooperates with the first matching portion to position the connecting head and the swivel in the circumferential direction; the connecting head can drive the swivel to rotate to the second angle, so that the third connecting portion cooperates with the second connecting portion, and the upper pot cover and the upper mold are positioned axially; when the connecting head is located at the second position, the connecting head is rotated to the third angle, and the connecting head cooperates with the first connecting portion to position the driving rod and the upper mold in the axial direction.

[0012] As a preferred technical solution, the connecting head is provided with a plurality of first convex teeth distributed at intervals in the circumferential direction; a first connecting disk is provided on the upper surface of the upper mold, the first connecting portion is provided as a connecting groove provided on the upper surface of the first connecting disk, and a plurality of spaced limiting blocks are provided on the inner side wall of the connecting groove; a first gap is provided between the limiting block and the bottom wall of the connecting groove;

[0013] When the connecting head is at the second angle, there is no overlapping area between the projection of the first protruding tooth in the vertical direction and the limit block; when the connecting head is at the third angle, there is an overlapping area between the projection of the first protruding tooth in the vertical direction and the limit block; when the connecting head is in the second position, the first protruding tooth is located in the first gap.

[0014] As a preferred technical solution, a plurality of second convex teeth distributed circumferentially are provided on the inner hole of the swivel; when the connector is located at the first position and at the first angle, the first convex teeth are meshed with the second convex teeth; and the second convex teeth form the first mating portion.

[0015] As a preferred technical solution, a first protrusion arranged circumferentially is provided on the outer peripheral surface of the rotating ring; an annular groove is provided on the upper pot cover, and the first protrusion is embedded in the annular groove with a clearance fit.

[0016] As a preferred technical solution, a plurality of third convex teeth distributed at circumferential intervals are provided on the outer circumferential surface of the rotating ring; the third convex teeth are located below the first protrusion, and a second gap is provided between the third convex teeth and the first protrusion; a second connecting disk is provided on the upper surface of the upper mold, and the second connecting portion is configured as fourth convex teeth distributed at circumferential intervals and provided on the second connecting disk, and the fourth convex teeth extend into the second gap; the third convex teeth form the third connecting portion;

[0017] When the connecting head is located at the first position and at the first angle, there is no overlapping area between the projection of the third protruding tooth in the vertical direction and the fourth protruding tooth; when the connecting head drives the rotating ring to rotate to the second angle, there is an overlapping area between the projection of the third protruding tooth in the vertical direction and the fourth protruding tooth.

[0018] As a preferred technical solution, a connecting seat is provided in the upper pot cover, and the connecting seat is detachably connected to the upper pot cover by bolts, and the connecting seat and the upper pot cover form the annular groove;

[0019] And / or, the driving rod, the rotating ring and the mold are coaxially arranged.

[0020] As a preferred technical solution, it also includes a controller, which is connected to the first drive component and the second drive component respectively.

[0021] As a preferred technical solution, the upper pot cover is connected to a third driving assembly for driving it to move in a vertical direction, and the third driving assembly is connected to the controller;

[0022] And / or, the body is provided with an angle detection component, and the angle detection component is connected to the controller;

[0023] And / or, the upper pot cover is provided with a positioning pin extending downward, the positioning pin is provided with a positioning detection component, and the positioning detection component is connected to the controller.

[0024] As a preferred technical solution, the first drive assembly, the second drive assembly and the third drive assembly are all configured as hydraulic cylinders;

[0025] And / or, the controller is set to be a PLC;

[0026] And / or, the angle detection component is configured as an angle sensor;

[0027] And / or, the positioning detection component is configured as a position sensor.

[0028] As a preferred technical solution, the body includes a fixed seat, and the first drive assembly and the second drive assembly are both fixed on the fixed seat; a rotating shaft parallel to the drive rod is provided on one side of the drive rod, and the rotating shaft can rotate around its axis and can move with the drive rod; the rotating shaft is respectively connected to the drive rod and the second drive assembly in transmission; the angle detection assembly is arranged on the rotating shaft.

[0029] The beneficial effects of the utility model are as follows:

[0030] 1. When the connecting head on the driving rod of the utility model cooperates with the first connecting part, the axial positioning between the driving rod and the mold can be realized; when the connecting head on the driving rod cooperates with the first matching part on the rotating ring, the rotating ring can be driven to rotate, so that the third connecting part on the rotating ring cooperates with the second connecting part on the upper mold, so as to realize the axial positioning between the upper pot cover and the mold; while smoothly realizing the vulcanization process, the connection and separation between the driving rod and the upper pot cover and the mold can be conveniently controlled, thereby greatly simplifying the installation and disassembly process of the mold, and no longer requiring workers to work at high altitudes, with a simple structure and low cost and energy consumption.

[0031] 2. The drive rod of the utility model uses the existing structure of the traditional vulcanizer, and does not need to add a new drive structure. It avoids structural complexity, reduces modification costs and energy consumption, is easy to operate, and has strong versatility. It can effectively improve work efficiency by 30% and save costs by 15%.

[0032] 3. The utility model utilizes matching positioning pins and positioning detection components, angle detection components and controllers to cooperate with each other to form a closed-loop control, which can ensure the accurate relative positions among the driving rod, the upper pot cover and the mold, and the safe and reliable operation, thereby improving the safety of the vulcanizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a vulcanizing machine capable of quickly replacing molds according to the utility model;

[0034] Figure 2 for Figure 1 A magnified image of area A;

[0035] Figure 3 for Figure 1 A schematic diagram of the structure when the middle connector is in the second position;

[0036] Figure 4 for Figure 1 A bottom view of the swivel in FIG.

[0037] Figure 5 for Figure 1 A bottom view of the second connecting disk;

[0038] Figure 6 A bottom view of the connector when it is located at a first position and at a first angle;

[0039] Figure 7 A bottom view of the connector when it is located at the first position and at the second angle;

[0040] Figure 8 for Figure 1 A top view of a fixing seat in FIG.

[0041] Fig. 9 The utility model is a functional block diagram of a vulcanizing machine capable of quickly replacing molds.

[0042] In the figure: 1-body, 11-base, 12-fixed seat, 2-drive rod, 21-first drive assembly, 22-second drive assembly, 23-connector, 231-first convex tooth, 24-angle detection assembly, 25-rotating shaft, 3-mold, 31-upper mold, 32-lower mold, 33-first connecting disk, 331-connecting groove, 332-limiting block, 333-first gap, 34-second connecting disk, 341-fourth convex tooth, 4-upper pot cover, 41-annular groove, 42-connecting seat, 43-third drive assembly, 44-positioning pin, 45-positioning detection assembly, 5-swivel, 51-second convex tooth, 52-first protrusion, 53-third convex tooth, 54-second gap, 6-controller. DETAILED DESCRIPTION

[0043] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0044] Please refer to Figure 1-Figure 8 , which is an embodiment of a vulcanizer capable of quickly replacing molds provided by the utility model, comprises a machine body 1, the machine body 1 comprises a base 11, a mold 3 is arranged on the base 11, a vertically arranged driving rod 2 is arranged above the base 11; a connecting head 23 is arranged at the bottom of the driving rod 2, and a plurality of first convex teeth 231 are arranged on the connecting head 23 at intervals in the circumferential direction. Under the drive of the first driving component 21, the connecting head 23 can move along the vertical direction following the driving rod 2. At the same time, the driving rod 2 is rotatably connected to the first driving component 21 through a bearing. Under the drive of the second driving component 22, the connecting head 23 can rotate around its axis following the driving rod 2;

[0045] The mold 3 includes an upper mold 31 and a lower mold 32. A first connecting disk 33 is provided on the upper surface of the upper mold 31. The first connecting portion includes a connecting groove 331 provided on the upper surface of the first connecting disk 33. A plurality of spaced limiting blocks 332 are provided on the inner side wall of the connecting groove 331. A first gap 333 is provided between the limiting blocks 332 and the bottom wall of the connecting groove 331. When the connector 23 is located at the second position and at the third angle, the first protruding tooth 231 is embedded in the first gap 333. The limiting blocks 332 and the bottom wall of the connecting groove 331 can respectively limit the connector 23 to move upward and downward, thereby realizing the axial positioning of the driving rod 2 and the mold 3.

[0046] A second connecting plate 34 is also provided on the upper surface of the upper mold 31, and the second connecting portion is configured as a fourth convex tooth 341 which is circumferentially spaced and arranged on the second connecting plate 34; an upper pot cover 4 is provided above the mold 3, and a rotatable swivel 5 is provided on the upper pot cover 4, the first matching portion is configured as a plurality of second convex teeth 51 which are circumferentially spaced and arranged on the inner hole of the swivel 5, the third connecting portion is configured as a plurality of third convex teeth 53 which are circumferentially spaced and arranged on the outer circumferential surface of the swivel 5, a second gap 54 is provided above the third convex teeth 53, and the fourth convex teeth 341 are embedded in the second gap 54; when the connector 23 is located at the first position and at the first angle, the first convex teeth 231 mesh with the second convex teeth 51, positioning the connector 23 and the swivel 5 in the circumferential direction, and the connector 23 can drive the swivel 5 to rotate; further, when the connector 23 drives the swivel 5 to rotate to the second angle, the fourth convex teeth 341 in the second gap 54 cannot move in the vertical direction relative to the swivel 5, thereby realizing the axial positioning of the upper pot cover 4 and the upper mold 31;

[0047] The utility model only utilizes the existing structure of the vulcanizer, the driving rod 2, to conveniently realize the connection and loosening between the driving rod 2 and the upper pot cover 4 and the mold 3, and no longer requires workers to work at high altitudes, which greatly simplifies the installation and disassembly process of the mold 3.

[0048] For clarification, please refer to Figure 1 and Figure 2 The mold 3 is a flexible mold, and the lower mold 32 of the mold 3 is preferably detachably arranged on the base 11 by bolts, which is convenient for disassembly and assembly; the second connecting plate 34 is fixedly connected to the upper mold 31 by bolts. Furthermore, the second connecting plate 34 is preferably provided with a plurality of connecting holes matching molds 3 of different specifications, which can be conveniently fixed on molds 3 of different specifications.

[0049] For details, please refer to Figure 1-Figure 3 The axial and circumferential directions of the utility model are based on the driving rod 2; the driving rod 2, the rotating ring 5 and the mold 3 should be coaxially arranged, so that when the driving rod 2 moves along its axial direction, it can cooperate with the rotating ring 5 and the mold 3 respectively through the connecting head 23, and ensure that the driving rod 2 and the upper pot cover 4 can be firmly connected to the mold 3 respectively.

[0050] It should be noted that the shape of the first gap 333 should be such that the connector 23 can be accommodated and the connector 23 can be rotated from the second angle to the third angle within the first gap 333 .

[0051] In this embodiment, please refer to Figure 2-Figure 8 , the connector 23 is provided with four first protruding teeth 231 evenly distributed at circumferential intervals, and accordingly, the number of the limiting blocks 332 and the second protruding teeth 51 is also set to four and the distribution positions are staggered with the first protruding teeth 231, and the first protruding teeth 231 can pass through the gap between the limiting blocks 332. After the first protruding teeth 231 are rotated to the third angle, the limiting blocks 332 can effectively prevent the first protruding teeth 231 from escaping from the connecting groove 331; at the same time, the first protruding teeth 231 can be easily engaged with the second protruding teeth 51; similarly, the third protruding teeth 53 and the fourth protruding teeth 341 are both set to eight and evenly distributed at circumferential intervals, and ... The positions of the third convex teeth 53 and the fourth convex teeth 341 are staggered, which can ensure that when the rotating ring 5 is at the first angle, the third convex teeth 53 and the fourth convex teeth 341 do not interfere with each other, and the upper pot cover 4 can move in the vertical direction relative to the upper mold 31; when the rotating ring 5 is at the second angle, the third convex teeth 53 limit the fourth convex teeth 341 in the second gap 54, thereby realizing the connection between the upper pot cover 4 and the upper mold 31; in other embodiments, the number of the first convex teeth 231, the second convex teeth 51, the third convex teeth 53, the fourth convex teeth 341 and the limit block 332 can also be set to other values ​​to facilitate mutual cooperation and disengagement.

[0052] For clarification, please refer to Figure 2-Figure 8 The shapes of the first convex tooth 231, the second convex tooth 51, the third convex tooth 53, the fourth convex tooth 341 and the limit block 332 are all set to be rectangular or quasi-rectangular. When matching each other, the projection of the first convex tooth 231 in the vertical direction and the limit block 332, as well as the projection of the fourth convex tooth 341 in the vertical direction and the third convex tooth 53 have a large overlapping area, which can improve the stability of the connection and facilitate production; in other embodiments, the first convex tooth 231 can also form a matching spline with the limit block 332 and the second convex tooth 51, and the third convex tooth 53 can also form a matching spline with the fourth convex tooth 341, and the shape of the key can also be semicircular, wedge-shaped, etc., so as to enable accurate and stable matching.

[0053] In this embodiment, please refer to Figure 1-Figure 8A first protrusion 52 is circumferentially arranged on the outer circumferential surface of the rotating ring 5, and an annular groove 41 is provided at a position of the upper pot cover 4 corresponding to the first protrusion 52. The first protrusion 52 is embedded in the annular groove 41 with a clearance fit, and the rotating ring 5 can rotate relative to the upper pot cover 4; the third protruding tooth 53 is located below the first protrusion 52, and the second gap 54 is located between the third protruding tooth 53 and the first protrusion 52; specifically, a connecting seat 42 is provided in the upper pot cover 4, and the connecting seat 42 is detachably connected to the upper pot cover 4 by bolts, and part of the side surface of the connecting seat 42 and part of the side surface of the upper pot cover 4 jointly form an annular groove 41, and the rotating ring 5 can be conveniently rotatably arranged on the upper pot cover 4 through the detachable connecting seat 42.

[0054] In this embodiment, please refer to Figure 1 , Figure 8 and Fig. 9 The utility model also includes a controller 6; the upper pot cover 4 is connected to a third driving component 43 that drives it to move in the vertical direction; an angle detection component 24 is provided on the body 1, and the angle detection component 24 is used to measure the rotation angle of the driving rod 2; the controller 6 is respectively connected to the first driving component 21, the second driving component 22, the third driving component 43 and the angle detection component 24, and the controller 6 controls the switch and working intensity of the first driving component 21 and the second driving component 22 to adjust the position and angle of the connecting head 23; the controller 6 controls the switch and working intensity of the third driving component 43 to adjust the height of the upper pot cover 4; the angle detection component 24 can send the measured angle information to the controller 6 in real time.

[0055] It should be noted that the first drive component 21, the second drive component 22 and the third drive component 43 are preferably configured as hydraulic cylinders; the controller 6 is preferably configured as a PLC, which can be located in an electrical cabinet on one side of the base 11; and the angle detection component 24 is preferably configured as an angle sensor.

[0056] Based on the above examples, please refer to Figure 1-Figure 3 The upper pot cover 4 is provided with a positioning pin 44 extending downward, and the positioning pin 44 is provided with a positioning detection component 45, and the positioning detection component 45 is connected to the controller 6; when the upper pot cover 4 is connected to the upper mold 31, the lower end of the positioning pin 44 can abut against the upper mold 31 or the second connecting plate 34, and the positioning pin 44 will be displaced in the vertical direction. The positioning detection component 45 is preferably configured as a position sensor, and the position sensor can determine the relative position between the upper pot cover 4 and the upper mold 31 by measuring the displacement of the positioning pin 44 in the vertical direction; the positioning detection component 45 can send the measured displacement information to the controller 6 in real time.

[0057] In this embodiment, please refer to Figure 1 and Figure 8The body 1 includes a fixed seat 12, and the first drive component 21 and the second drive component 22 are both fixed on the fixed seat 12; a rotating shaft 25 arranged parallel to the driving rod 2 is provided on one side of the driving rod 2, and a bearing seat is provided on the driving rod 2, and two bearings are provided on the bearing seat. The driving rod 2 and the rotating shaft 25 are respectively rotatably connected with the bearing seat through the two bearings, so that the rotating shaft 25 can rotate around its axis and can move with the driving rod 2; a through hole is provided on the fixed seat 12, and the upper end of the rotating shaft 25 passes through the through hole, and the second drive component 22 is connected with the rotating shaft 25 by transmission, and the rotating shaft 25 and the driving rod 2 are connected by gear transmission, and the second drive component 22 can drive the driving rod 2 to rotate through the rotating shaft 25; the angle detection component 24 is provided on the rotating shaft 25 and is located above the fixed seat 12, and the angle detection component 24 can measure the rotation angle of the rotating shaft 25, and the controller 6 can accurately calculate the rotation angle of the driving rod 2 through the rotation angle information of the rotating shaft 25 measured by the angle detection component 24; it should be noted that Figure 8 In one embodiment, the angle detection component 24 is at the corresponding position when the connector 23 is at the first angle, the second angle and the third angle respectively.

[0058] Please refer to Figure 1-Figure 9 The specific installation process of the mold 3 of the utility model is as follows:

[0059] Fix the second connection plate 34 to the upper mold 31 of the mold 3 in the mold assembly area;

[0060] The mold 3 is placed on the base 11 of the machine body 1 by using a crane, and the lower mold 32 is fixedly connected to the base 11 by bolts; the upper pot cover 4 is moved into the mold opening position above the machine body 1, and the upper pot cover 4 is driven to descend by the third driving assembly 43. When the upper pot cover 4 contacts the upper end surface of the second connecting plate 34, the positioning detection assembly 45 measures the movement of the positioning pin 44, and the controller 6 controls the third driving assembly 43 to stop the upper pot cover 4 from descending;

[0061] The first driving assembly 21 drives the driving rod 2 to descend, so that the connecting head 23 moves to the first position. At this time, the connecting head 23 is at a first angle, and the first protruding tooth 231 on the connecting head 23 is meshed with the second protruding tooth 51 on the inner hole of the rotating ring 5; the second driving assembly 22 drives the driving rod 2 to rotate, so that the connecting head 23 rotates to the second angle, and the rotating ring 5 rotates accordingly, so that the third protruding tooth 53 on the rotating ring 5 can cooperate with the fourth protruding tooth 341 on the second connecting disk 34, and the rotating ring 5 and the second connecting disk 34 are locked, so as to realize the connection between the upper pot cover 4 and the upper mold 31;

[0062] The first driving component 21 drives the driving rod 2 to continue to descend, so that the connecting head 23 passes through the gap between the limit blocks 332 and moves to the second position; the second driving component 22 drives the driving rod 2 to rotate, so that the connecting head 23 rotates to the third angle, and the first protruding tooth 231 on the connecting head 23 cooperates with the limit block 332 on the connecting groove 331 to realize the connection between the driving rod 2 and the upper mold 31; the installation of the mold 3 is completed.

[0063] Please refer to Figure 1-Figure 9 The specific disassembly process of the mold 3 of the utility model is as follows:

[0064] The second driving assembly 22 drives the driving rod 2 to rotate, so that the connecting head 23 rotates from the third angle to the second angle; the first driving assembly 21 drives the driving rod 2 to rise, so that the connecting head 23 passes through the gap between the limit blocks 332, so as to separate the driving rod 2 from the upper mold 31;

[0065] The first driving assembly 21 drives the driving rod 2 to rise to the first position, and the connecting head 23 engages with the rotating ring 5; the second driving assembly 22 drives the driving rod 2 to rotate, so that the connecting head 23 drives the rotating ring 5 to rotate from the second angle to the first angle, so that the third protruding tooth 53 on the rotating ring 5 is disengaged from the fourth protruding tooth 341 on the second connecting plate 34, thereby realizing the separation of the upper pot cover 4 and the upper mold 31;

[0066] After the third driving assembly 43 drives the upper pot cover 4 to rise to the mold opening position above the machine body 1, the upper pot cover 4 is removed; after the bolts between the lower mold 32 and the base 11 are removed, the mold 3 is lifted out, and the disassembly of the mold 3 is completed.

[0067] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A vulcanizing machine capable of quickly changing molds, characterized in that: include: A machine body (1), the machine body (1) comprising a base (11) and a vertically arranged driving rod (2), the driving rod (2) being respectively connected to a first driving assembly (21) for driving the driving rod to move axially and a second driving assembly (22) for driving the driving rod to rotate around its axis; a connecting head (23) is provided at the bottom of the driving rod (2); A mold (3), wherein the mold (3) is detachably arranged on the base (11); the mold (3) comprises an upper mold (31) and a lower mold (32); a first connecting portion and a second connecting portion are arranged on the upper surface of the upper mold (31); the first connecting portion matches the connecting head (23); An upper pot cover (4), wherein the upper pot cover (4) is provided with a rotating ring (5), and the rotating ring (5) is capable of rotating around its axis; the rotating ring (5) has a first matching portion and a third connecting portion, the first matching portion matches the connecting head (23), and the third connecting portion matches the second connecting portion; The connecting head (23) can be moved to a first position and a second position, and the connecting head (23) can be rotated to a first angle, a second angle and a third angle; when the connecting head (23) is located at the first position and at the first angle, the connecting head (23) cooperates with the first matching portion to position the connecting head (23) and the rotating ring (5) in the circumferential direction; the connecting head (23) can drive the rotating ring (5) to rotate to the second angle, so that the third connecting portion cooperates with the second connecting portion to position the upper pot cover (4) and the upper mold (31) in the axial direction; when the connecting head (23) is located at the second position, the connecting head (23) rotates to the third angle, and the connecting head (23) cooperates with the first connecting portion to position the driving rod (2) and the upper mold (31) in the axial direction.

2. A vulcanizing machine capable of quickly changing molds according to claim 1, characterized in that: The connecting head (23) is provided with a plurality of first protruding teeth (231) distributed at intervals in the circumferential direction; a first connecting plate (33) is provided on the upper surface of the upper mold (31); the first connecting portion is provided as a connecting groove (331) provided on the upper surface of the first connecting plate (33); a plurality of spaced-apart limiting blocks (332) are provided on the inner side wall of the connecting groove (331); a first gap (333) is provided between the limiting block (332) and the bottom wall of the connecting groove (331); When the connecting head (23) is at the second angle, there is no overlapping area between the projection of the first protruding tooth (231) in the vertical direction and the limiting block (332); when the connecting head (23) is at the third angle, there is an overlapping area between the projection of the first protruding tooth (231) in the vertical direction and the limiting block (332); when the connecting head (23) is at the second position, the first protruding tooth (231) is located in the first gap (333).

3. A vulcanizing machine capable of quickly changing molds according to claim 2, characterized in that: The inner hole of the rotating ring (5) is provided with a plurality of second protruding teeth (51) spaced apart in the circumferential direction; when the connecting head (23) is located at the first position and at the first angle, the first protruding teeth (231) mesh with the second protruding teeth (51); the second protruding teeth (51) form the first matching portion.

4. A vulcanizing machine capable of quickly changing molds according to claim 3, characterized in that: A first protrusion (52) arranged circumferentially is provided on the outer peripheral surface of the rotating ring (5); an annular groove (41) is provided on the upper pot cover (4), and the first protrusion (52) is loosely fitted in the annular groove (41).

5. A vulcanizing machine capable of quickly changing molds according to claim 4, characterized in that: A plurality of third protruding teeth (53) are arranged on the outer circumferential surface of the rotating ring (5); the third protruding teeth (53) are located below the first protrusion (52), and a second gap (54) is provided between the third protruding teeth (53) and the first protrusion (52); a second connecting plate (34) is arranged on the upper surface of the upper mold (31), and the second connecting portion is arranged as fourth protruding teeth (341) arranged on the second connecting plate (34) and arranged at circumferential intervals, and the fourth protruding teeth (341) extend into the second gap (54); the third protruding teeth (53) form the third connecting portion; When the connecting head (23) is located at the first position and at the first angle, there is no overlapping area between the projection of the third protruding tooth (53) in the vertical direction and the fourth protruding tooth (341); when the connecting head (23) drives the rotating ring (5) to rotate to the second angle, there is an overlapping area between the projection of the third protruding tooth (53) in the vertical direction and the fourth protruding tooth (341).

6. A vulcanizing machine capable of quickly changing molds according to claim 5, characterized in that: A connecting seat (42) is provided inside the upper pot cover (4), and the connecting seat (42) is detachably connected to the upper pot cover (4) by means of bolts, and the connecting seat (42) and the upper pot cover (4) form the annular groove (41); And / or, the driving rod (2), the rotating ring (5) and the mold (3) are coaxially arranged.

7. A vulcanizing machine capable of quickly changing molds according to claim 1, characterized in that: It also includes a controller (6), which is connected to the first drive component (21) and the second drive component (22) respectively.

8. A vulcanizing machine capable of quickly changing molds according to claim 7, characterized in that: The upper pot cover (4) is connected to a third driving assembly (43) for driving it to move in a vertical direction, and the third driving assembly (43) is connected to the controller (6); And / or, the body (1) is provided with an angle detection component (24), and the angle detection component (24) is connected to the controller (6); And / or, the upper pot cover (4) is provided with a positioning pin (44) extending downward, the positioning pin (44) is provided with a positioning detection component (45), and the positioning detection component (45) is connected to the controller (6).

9. A vulcanizing machine capable of quickly changing molds according to claim 8, characterized in that: The first drive assembly (21), the second drive assembly (22) and the third drive assembly (43) are all configured as hydraulic cylinders; And / or, the controller (6) is set as a PLC; And / or, the angle detection component (24) is configured as an angle sensor; And / or, the positioning detection component (45) is configured as a position sensor.

10. A vulcanizing machine capable of quickly changing molds according to claim 8 or 9, characterized in that: The machine body (1) comprises a fixed seat (12), and the first drive assembly (21) and the second drive assembly (22) are both fixed on the fixed seat (12); a rotating shaft (25) arranged parallel to the driving rod (2) is provided on one side of the driving rod (2), and the rotating shaft (25) can rotate around its axis and can move with the driving rod (2); the rotating shaft (25) is respectively connected to the driving rod (2) and the second drive assembly (22); and the angle detection assembly (24) is arranged on the rotating shaft (25).

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