Automatic upper mold locking device for tire vulcanizing machine, tire vulcanizing machine comprising automatic upper mold locking device and upper mold locking method

Abstract

The invention provides an automatic upper mold locking device for a tire vulcanizer, which comprises a mold locking driving device, a movable sliding seat connected with the mold locking driving device, and a clamping mechanism connected with the sliding seat, the clamping mechanism comprises two first moving assemblies, a first clamping piece and a second clamping piece, wherein the first clamping piece and the second clamping piece are movably arranged on the first moving assemblies respectively. A first locking groove is formed in the first clamping piece, a second locking groove is formed in the second clamping piece, and the first locking groove and the second locking groove are oppositely arranged; the first clamping piece and the second clamping piece can move oppositely or reversely in the first direction, and after the first clamping piece reaches a locking position in the first direction, the second clamping piece continues to move in the first direction, and then the first clamping piece is driven to move in the second direction to lock a mold. The automatic mold locking device for the upper mold has the beneficial effects of being simple in structure and high in automation degree.

Description

Technical Field

[0001] The invention relates to the field of tire production equipment, in particular to an upper mold automatic locking device for a tire vulcanizer, a tire vulcanizer containing the same and an upper mold locking method. Background Art

[0002] The mold in the tire vulcanizer has an upper mold and a lower mold. The upper mold is fixed on the upper mold plate. The upper mold plate moves up and down on the frame of the vulcanizer, thereby driving the upper mold to move up and down to achieve mold opening and closing with the lower mold. When vulcanizing tires of different specifications, the mold also needs to be replaced. The existing method of locking and fixing the upper mold to the upper mold plate is manual operation, specifically, first placing the upper mold on the lower mold, then dropping the upper mold plate to the specified position, and manually passing the locking screw through the upper mold plate to lock it with the upper mold.

[0003] On the other hand, due to the large radius of the mold and the upper mold plate, when the locking screw is located close to the middle, it is impossible to lock the upper mold by standing on the ground manually. Workers are required to climb to the upper side of the upper mold plate to perform the locking operation. The locking efficiency is low and there are certain safety hazards. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an automatic clamping device for an upper mold of a tire vulcanizer, comprising a clamping drive device, a movable sliding seat connected to the clamping drive device, and a clamping mechanism connected to the sliding seat, wherein the clamping mechanism comprises two groups of first moving components and a first clamping member and a second clamping member respectively movably arranged on the first moving components; a first locking groove is arranged on the first clamping member, and a second locking groove is arranged on the second clamping member, and the first locking groove and the second locking groove are arranged opposite to each other; the first clamping member and the second clamping member can move toward each other or move in the opposite direction along a first direction, and when the first clamping member reaches the locking position along the first direction, the second clamping member continues to move along the first direction, thereby driving the first clamping member to move along the second direction to lock the mold.

[0005] The present invention mainly provides an automatic clamping device for an upper mold with a clamping mechanism, which is provided with a first clamping member and a second clamping member that can move toward or in the opposite direction simultaneously along a first direction, and when the first clamping member moves to a locking position along the first direction, the second clamping member can continue to move toward the first clamping member along the first direction to drive the first clamping member to move along the second direction, thereby fastening the clamping screw in the second direction and realizing automatic clamping of the upper mold; by means of a first connecting mechanism and a second connecting mechanism fixedly arranged on a sliding seat, the first clamping member and the second clamping member can be driven to move toward or in the opposite direction simultaneously by the same driving source; by means of a moving adjustment mechanism, after the first clamping member reaches the locking position, the second clamping member continues to move in the direction of the first clamping member; the device has the beneficial effects of simple structure, convenient use and high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of a first embodiment of the upper mold automatic clamping device described in the present invention.

[0007] Figure 2 It is a schematic diagram of a second embodiment of the upper mold automatic clamping device described in the present invention.

[0008] Figure 3 for Figure 2 Schematic diagram of the first clamping member and the second clamping member being completely separated.

[0009] Figure 4 for Figure 2 Schematic diagram of the first clamping member reaching the locking position.

[0010] Figure 5 for Figure 2 A schematic diagram showing that after the first clamping member reaches the locking position, the second clamping member continues to move toward the first clamping member.

[0011] Figure 6 for Figure 3 Partial cross-sectional view along the A-A' line.

[0012] Figure 7 for Figure 5 Partial cross-sectional view along the BB' line.

[0013] Figure 8 for Figure 1 The first embodiment is a schematic diagram of an upper mold automatic clamping device in which a plurality of clamping mechanisms are driven by the same transmission device to move simultaneously, wherein the transmission device is the first embodiment.

[0014] Fig. 9 for Figure 2The second embodiment is a schematic diagram of an upper mold automatic clamping device in which a plurality of clamping mechanisms are driven by the same transmission device to move simultaneously, wherein the transmission device is the second embodiment.

[0015] Fig.10 for Figure 2 The second embodiment is a schematic diagram of an upper mold automatic clamping device in which a plurality of clamping mechanisms are driven by the same transmission device to move simultaneously, wherein the transmission device is a third embodiment.

[0016] Fig.11 The present invention is a schematic diagram of a tire vulcanizer with an upper mold automatic locking device. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings.

[0018] like Figures 1 to 11 As shown, the present invention discloses an upper mold automatic clamping device for a tire vulcanizer (hereinafter referred to as the upper mold automatic clamping device) 1, comprising a clamping drive device 10 fixedly arranged on the upper mold plate, a sliding seat 20 connected to the clamping drive device 10, the sliding seat 20 is movably arranged on the upper mold plate 300 through a third moving component 30 (such as a combination of a slide rail and a slider), and a clamping mechanism 40 connected to the sliding seat 20, the clamping mechanism 40 comprises a first clamping member 41 movably arranged along a first direction F1 through a first moving component 50A, and a second clamping member 42 movably arranged along the first direction F1 through a first moving component 50B, the first clamping member 41 is movable along a second direction F2 through a second moving component 60, a first locking groove 411 is arranged on the first clamping member 41, and a second locking groove 421 is arranged on the second clamping member 42, the first locking groove 411 and the second locking groove 421 are arranged opposite to each other, and the first locking groove 411 and the second locking groove 421 are arranged opposite to each other. 11 and the second locking groove 421 are U-shaped, the first clamping member 41 is connected to the sliding seat 20 through the first connecting mechanism 70, and the second clamping member 42 is connected to the sliding seat 20 through the second connecting mechanism 80; the locking drive device 10 can drive the sliding seat 20 to move, so that the first clamping member 41 and the second clamping member 42 can move toward or in the opposite direction along the first direction F1 through the first connecting mechanism 70 and the second connecting mechanism 80 arranged on the sliding seat 20; it also includes a movement adjustment mechanism 90 arranged on the first connecting mechanism 70, and the movement adjustment mechanism 90 is used to realize that when the first clamping member 41 reaches the locking position (the locking position refers to the position where the first locking groove 411 on the first clamping member 41 is completely in contact with the locking screw 100 in the first direction F1, and the first clamping member 41 cannot continue to move in the direction close to the second clamping member 42 in the first direction F1), the first clamping member 41 does not move in the first direction F1, such as Figure 7 As shown, at the same time, the second clamping member 42 can continue to move in the direction close to the first clamping member 41 until it contacts the first clamping member 41. The second clamping member 42 continues to move along the first direction F1 toward the first clamping member 41, so that the first clamping member 41 is lifted and moves along the second direction F2. When the first clamping member 41 moves along the second direction F2 until it is completely in contact with the locking end of the locking screw 100, the upper mold 200 contacts the upper mold plate 300 in the second direction F2. The first clamping member 41 and the second clamping member 42 lock the locking screw 100 that passes through the upper mold plate 300 and is threadedly connected to the upper mold 200 in the second direction F2, thereby realizing automatic locking of the upper mold 200, thereby replacing traditional manual locking.

[0019] like Figure 6 and 7 As shown, the first clamping member 41 of the present invention is provided with a first inclined surface 412 on its lower surface, and the second inclined surface 422 is provided with a second inclined surface 422 on its upper surface. The first inclined surface 412 and the second inclined surface 422 are provided in parallel and are both inclined along the F2 direction. Through the above arrangement, when the first clamping member 41 reaches the locking position, the second clamping member 42 continues to move along the first direction F1 toward the direction close to the first clamping member 41 until it contacts the first clamping member 41. At this time, the second inclined surface 422 of the second clamping member 42 contacts the first inclined surface 412 of the first clamping member 41. Since the first clamping member 41 can no longer continue to move toward the direction close to the second clamping member 42 in the first direction F1, when the second clamping member 42 continues to move toward the direction close to the first clamping member 41, the first inclined surface 412 of the first clamping member 41 moves upward along the second direction F2 under the guidance of the second inclined surface 422 of the second clamping member 42, thereby realizing the movement of the first clamping member 41 along the second direction F2. As shown Figure 1 As shown, as a first embodiment of the upper mold automatic clamping device of the present invention, the clamping mechanism 40 includes a first clamping member 41 and a second clamping member 42 that can be movably arranged along the first direction F1 through first moving components 50A and 50B, and the first clamping member 41 can be moved along the second direction F2 through the second moving component 60, wherein the first clamping member 41 is connected to the sliding seat 20 through a first connecting mechanism 70, and the second clamping member 42 is connected to the sliding seat 20 through a second connecting mechanism 80. The first moving component 50A and the first moving component 50B have the same structure. Specifically, the first moving component 50 includes a support member 51 provided with a first sliding sleeve (not shown), the support member 51 is fixedly arranged on the upper mold plate 300 along a third direction F3 perpendicular to the first direction F1, and also includes a shaft rod 52 slidably arranged in the first sliding sleeve, and one end of the shaft rod 52 is connected to the first clamping member 41 or the second clamping member 42.

[0020] like Figure 1 and 6 As shown, it also includes a connecting member 506 fixedly arranged on the upper template 300, the first clamping member 41 is connected to the connecting member 506 through the second moving assembly 60, and one end of the shaft 52 in the first moving assembly 50A is connected to the connecting member 506. Figure 2 As shown, the second moving assembly 60 includes a second sliding sleeve 61 disposed on the connecting member 506, and a moving shaft 62 fixedly disposed on the first clamping member 41, wherein the moving shaft 62 is slidably disposed in the second sliding sleeve 61, and further includes a first elastic element 63 sleeved on the moving shaft 62 between the connecting member 506 and the first clamping member 41. The first clamping member 41 can move along the second direction F2 through the second moving assembly 60. When the first clamping member 41 is moved as shown in FIG. Figure 3 As shown, move along the first direction F1 to reach Figure 4 After the locking position shown, the second clamping member 42 continues to move toward the direction close to the first clamping member 41. Figure 7 As shown, the first clamping member 41 is lifted by the second clamping member 42, the moving shaft 62 moves in the second sliding sleeve 61, and the first elastic element 63 is compressed. When the clamping screw 100 is no longer fixed, the second clamping member 42 moves in a direction away from the first clamping member 41, and the first clamping member 41 moves downward along the second direction F2 under the action of its own gravity and the elastic restoring force of the first elastic element 63.

[0021] like Figure 1 As shown, the second connection mechanism 80 includes a sprocket 81 and a chain 82, wherein the sprocket 81 is rotatably disposed on the upper mold plate 300, one end of the chain 82 is fixedly connected to the second clamping member 42, and the other end of the chain is connected to the sliding seat 20. The first connection mechanism 70 is a first connecting rod 71, one end of the first connecting rod 71 is hingedly disposed to the first clamping member 41, and the other end of the first connecting rod 71 is hingedly disposed on the sliding seat 20. Through the above-mentioned first connecting mechanism 70 and second connecting mechanism 80, when the locking drive device 10 drives the sliding seat 20 to move along the fourth direction F4 toward the sprocket 81, the sprocket 81 rotates counterclockwise, driving the chain 82 to move, and the portion of the chain 82 between the sprocket 81 and the second clamping member 42 becomes longer, thereby driving the second clamping member 42 to move toward the first clamping member 41. At the same time, the sliding seat 20 moves along the fourth direction F4 toward the sprocket 81, driving the first connecting rod 71 to move toward the sprocket 81, thereby driving the first clamping member 41 to move toward the second clamping member 42, thereby realizing that the first clamping member 41 and the second clamping member 42 are driven by the same driving device to move toward or in the opposite direction at the same time.

[0022] At this time, the moving adjustment mechanism 90 is a first moving groove 91 provided on the sliding seat 20, and the first connecting rod 71 is hingedly provided in the first moving groove 91 at one end away from the connection with the first clamping member 41, and can move in the first moving groove 91; it also includes a second elastic element 92 provided on the first moving component 50A, specifically, the second elastic element 92 is provided on the shaft 52 between the support member 51 and the connecting member 506, and the second elastic element 92 is always in a compression setting, that is, during the opening and closing of the first clamping member 41 and the second clamping member 42, the second elastic element 92 is always compressed. By moving the adjustment mechanism 90, it is ensured that when the first clamping member 41 and the second clamping member 42 move toward each other along the first direction F1, the first connecting rod 71 is affected by the elastic restoring force of the second elastic element 92 and is located at the end of the first moving groove 91 close to the sprocket 81 (that is, Figure 1 911 in the figure), when the first clamping member 41 reaches the locking position, that is, the first clamping member 41 can no longer move in the first direction F1 toward the second clamping member 42, the clamping drive device 10 can continue to drive the sliding seat 20 to move along the fourth direction F4 toward the sprocket 81, thereby continuing to drive the second clamping member 42 to move toward the first clamping member 41. At this time, the first connecting rod 71 is fixed, and the sliding seat 20 moves so that the first connecting rod 71 is located at the end of the first moving groove 91 away from the sprocket 81 (that is, Figure 1 912 in FIG. 9). The above arrangement realizes that when the first clamping member 41 reaches the locking position, the first clamping member 41 no longer moves along the first direction F1 toward the second clamping member 42, and the second clamping member 42 can continue to move along the first direction F1 toward the first clamping member 41.

[0023] When the clamping drive device 10 drives the sliding seat 20 to move toward the direction close to the sprocket 81, the sprocket 81 will rotate with the chain 82. Since the chain between the second clamping member 42 and the sprocket 81 is not constrained and has no force, it may bend, thereby failing to ensure that the second clamping member 42 is driven to move toward the direction close to the first clamping member 41. Therefore, in order to solve the above technical problems, the clamping mechanism 40 also includes a third elastic element 44 arranged between the second clamping member 42 and the first movable component 50B. Specifically, the third elastic element 44 is arranged on the shaft 52 of the first movable component 50B, and the third elastic element 44 is always in a compression setting, that is, during the opening and closing process of the first clamping member 41 and the second clamping member 42, the third elastic element 44 is always compressed, thereby ensuring that when the locking drive device 10 drives the sliding seat 20 to move toward the direction close to the sprocket 81, the second clamping member 42 is subjected to the elastic restoring force of the third elastic element 44 to give the sprocket 81 a pulling force to ensure that the sprocket 81 does not bend, thereby driving the second clamping member 42 to move in the first direction F1 toward the first clamping member 41.

[0024] It should be noted that, since the second elastic element 92 and the third elastic element 44 make the first clamping member 41 and the second clamping member 42 always subject to the elastic restoring force that approaches each other, when the upper mold 200 is unlocked, that is, when the first clamping member 41 and the second clamping member 42 are no longer fixed to the locking screw 100, it is necessary to drive the sliding seat 20 to move in the direction away from the sprocket 81 through the locking drive device 10 in order to drive the first clamping member 41 and the second clamping member 42 to move in the direction away from each other.

[0025] like Figure 2 As shown, as the second embodiment of the upper mold automatic clamping device of the present invention, the clamping mechanism 40 includes a first clamping member 41 and a second clamping member 42 that can be movably arranged along the first direction F1 through first moving components 50A and 50B, and the first clamping member 41 can be moved along the second direction F2 through the second moving component 60, wherein the first clamping member 41 is connected to the sliding seat 20 through a first connecting mechanism 70, and the second clamping member 42 is connected to the sliding seat 20 through a second connecting mechanism 80. Among them, the first moving component 50A and the first moving component 50B have the same structure, and the first moving component 50 is a combination of a slide rail and a slider. The second moving component 60 has the same structure as the second moving component in the first embodiment of the upper mold automatic clamping device, and will not be repeated here.

[0026] like Figure 2 and 3As shown, in this embodiment, the second connecting mechanism 80 is a second connecting rod assembly 83 of fixed length, one end of the second connecting rod assembly 83 is hinged to the second clamping member 42, and the other end of the second connecting rod assembly 83 is hinged to the sliding seat 20. The first connecting mechanism 70 includes a first connecting rod assembly 72 and a rotating rod 73 that are hingedly arranged, and a support rod 74 that is connected to the middle position of the rotating rod 73 (the middle position refers to the non-end position of the rotating rod 73), the rotating rod 73 is rotatably arranged on the support rod 74, the end of the first connecting rod assembly 72 away from the hinged rotation rod 73 is hinged to the sliding seat 20, and the end of the rotating rod 73 away from the hinged first connecting rod assembly 72 is hinged to the first clamping member 41. When the locking drive device 10 drives the sliding seat 20 to move along the fourth direction F4 toward the clamping mechanism 40, the sliding seat 20 moves with the second connecting rod assembly 83 toward the first clamping member 41, thereby driving the second clamping member 42 to move toward the first clamping member 41; at the same time, since the sliding seat 20 moves with the first connecting rod assembly 72 toward the first clamping member 41, the rotating rod 73 is pushed to rotate in the clockwise direction, thereby driving the first clamping member 41 to move toward the second clamping member 42, thereby realizing that the first clamping member 41 and the second clamping member 42 are driven by the same driving device to move toward or in the opposite direction at the same time.

[0027] At this time, the first connecting rod assembly 72 includes a first fixed rod 721 and a first movable rod 722, and one end of the first movable rod 722 is movably arranged in the first fixed rod 721. The movable adjustment mechanism 90 includes a second movable groove 93 arranged on the first fixed rod 721, and also includes a first fixing member 94 that can move in the second movable groove 93 and is fixedly arranged on the first movable rod 722, and the first fixing member 94 enables the first movable rod 722 to move within the range of the second movable groove 93; and also includes a fourth elastic element 95 sleeved on the first movable rod 722, and the fourth elastic element 95 is arranged on the part of the first movable rod 722 located outside the first fixed rod 721, and when the first movable rod 722 moves toward the first fixed rod 721, the fourth elastic element 95 will be compressed. Through the above arrangement, when the locking drive device 10 drives the sliding seat 20 to move in the direction close to the clamping mechanism 40, the sliding seat 20 drives the first fixed rod 721 to move in the direction close to the first moving rod 722. When the length of the part of the first moving rod 722 located outside the first fixed rod 721 becomes smaller, the fourth elastic element 95 will be compressed. The compressed fourth elastic element 95 has an elastic restoring force toward the first moving rod 722, so that the first moving rod 722 moves in the direction away from the first fixed rod 721. The first fixing member 94 is located at one end of the second moving groove 93 close to the first moving rod 722, thereby keeping the fourth elastic element 95 from being compressed. The first fixed rod 721 pushes the rotating rod 73 to move in the clockwise direction, thereby driving the first clamping member 41 to move in the direction close to the second clamping member 42. When the first clamping member 41 reaches the locking position, that is, the first clamping member 41 can no longer move in the direction close to the second clamping member 42 in the first direction F1, the locking drive device 10 continues to drive the sliding seat 20 to move in the direction close to the clamping mechanism 40, driving the second clamping member 42 to continue to move in the direction close to the first clamping member 41. Since the first clamping member 41 can no longer move in the direction close to the second clamping member 42, the rotating rod 73 can no longer rotate clockwise, that is, the end of the first moving rod 722 away from the first fixed rod 721 is fixed. When the sliding seat 20 drives the first fixed rod 721 to move in the direction close to the clamping mechanism 40, the first fixed member 94 moves relatively to the end of the second moving groove 93 close to the sliding seat 20. The above arrangement also ensures that when the first clamping member 41 reaches the locking position, the first clamping member 41 no longer moves along the first direction F1 toward the second clamping member 42, and the second clamping member 42 can continue to move along the first direction F1 toward the first clamping member 41.

[0028] Through the movable adjustment mechanism 90 of the above structure, when the upper mold 200 is locked, the fourth elastic element 95 always remains in a compressed state. When the upper mold 200 is unlocked, due to the elastic restoring force of the fourth elastic element 95, the first clamping member 41 and the second clamping member 42 are pushed away from each other for reset.

[0029] Since the upper molds 200 of different diameters are fixed at different positions on the upper mold plate 300, the upper mold plate 300 is usually provided with a plurality of fixing holes 400 for fixing the mold locking screws 100 along the third direction F3 to adapt to the upper molds 200 of different diameters. Figure 1 and 3 As shown, a plurality of first locking grooves 411 may be provided on the first clamping member 41 according to the setting interval of the fixing holes 400, and a plurality of second locking grooves 421 may be provided on the second clamping member 42, so as to lock the locking screws 100 at different positions.

[0030] When locking the upper mold 200 onto the upper mold plate 300, it is usually necessary to set at least two fixed mold locking screws 100 at the diagonal positions of the upper mold plate 300, or to set four fixed mold locking screws 100 in four directions of the upper mold plate 300. This means that two sets of upper mold automatic mold locking devices or four sets of upper mold automatic mold locking devices of the same structure as above are required. Figures 8 to 10 As shown, in order to simplify the structure and reduce the cost, two or four groups of clamping mechanisms 40 can be driven by a driving device to lock two or four fixed locking screws 100 arranged at different positions of the upper mold plate 300. In the automatic locking device described in the present invention, the sliding seat 20 includes two groups of first sliding seats 20A and second sliding seats 20B arranged oppositely, and the clamping mechanism 40 includes a first clamping mechanism 40A and a second clamping mechanism 40B arranged oppositely, the first clamping mechanism 40A is connected to the first sliding seat 20A, and the second clamping mechanism 40B is connected to the second sliding seat 20B. The clamping drive device 10 includes a clamping drive source 11 fixedly arranged on the upper mold plate 300, and a transmission device 12 driven by the clamping drive source 11, and the transmission device 12 is respectively connected to the first sliding seat 20A and the second sliding seat 20B. The clamping drive source 11 can simultaneously drive the first sliding seat 20A and the second sliding seat 20B to move toward or in the opposite direction through the transmission device 12, thereby realizing simultaneous driving of the first clamping mechanism 40A and the second clamping mechanism 40B.

[0031] When it is necessary to lock the four fixed mold-locking screws 100, the clamping mechanism 40 includes a first clamping mechanism 40A and a second clamping mechanism 40B that are arranged opposite to each other, and a third clamping mechanism 40C and a fourth clamping mechanism 40D that are arranged opposite to each other, wherein the first clamping mechanism 40A and the third clamping mechanism 40C are respectively fixedly arranged on both sides of the first sliding seat 20A, and the second clamping mechanism 40B and the fourth clamping mechanism 40D are respectively fixedly arranged on both sides of the second sliding seat 20B. When the mold-locking driving source 11 simultaneously drives the first sliding seat 20A and the second sliding seat 20B to move toward or in the opposite direction, the first clamping mechanism 40A, the second clamping mechanism 40B, the third clamping mechanism 40C and the fourth clamping mechanism 40D are simultaneously driven.

[0032] like Figure 8 As shown, as a first embodiment of the transmission device 12, the transmission device 12 includes a first screw rod 121 with reverse threads at both ends, and the two ends of the first screw rod 121 are respectively connected to the first sliding seat 20A and the second sliding seat 20B through two sets of first screw rod nuts 122.

[0033] like Fig. 9 As shown, as a second embodiment of the transmission device 12, the transmission device 12 includes a driving transmission mechanism 123 connected to the clamping drive source 11, a first sliding seat driving mechanism 124 connected to the first sliding seat 20A, a second sliding seat driving mechanism 125 connected to the second sliding seat 20B, and a driving shaft 126 connecting the first sliding seat driving mechanism 124 and the second sliding seat driving mechanism 125, the first sliding seat driving mechanism 124 is connected to the first sliding seat 20A through a second screw rod and a second screw rod nut (not shown), so that the first sliding seat 20A can reciprocate on the second screw rod, the second sliding seat driving mechanism 125 is connected to the second sliding seat 20B through a third screw rod 1251 and a third screw rod nut 1252, so that the second sliding seat 20B can reciprocate on the third screw rod 1251, the threads of the second screw rod and the third screw rod 1251 are opposite, and one end of the driving transmission mechanism 123 is fixedly set on the second screw rod or the third screw rod 1251. The driving transmission mechanism 123 , the first sliding seat driving mechanism 124 and the second sliding seat driving mechanism 125 may be a sprocket and chain structure or a synchronous belt and synchronous belt wheel structure or a combination of the two.

[0034] like Fig.10As shown, as a third embodiment of the transmission device 12, the transmission device 12 includes a rotatable gear 127, and a first rack 1281 and a second rack 1282 movably arranged along a fourth direction F4, the first rack 1281 and the second rack 1282 are respectively engaged with the gear 127, and also includes a first connecting rod 1291 connecting the first sliding seat 20A and the first rack 1281, and a second connecting rod 1292 connecting the second sliding seat 20B and the second rack 1282. When the clamping drive source 11 drives the first sliding seat 20A or the second sliding seat 20B connected thereto to move, thereby driving the gear 127 to rotate, the gear 127 can drive the first rack 1281 and the second rack 1282 to move toward or in the opposite direction at the same time, thereby driving the first sliding seat 20A and the second sliding seat 20B to move toward or in the opposite direction at the same time.

[0035] When the same driving device drives multiple sets of clamping mechanisms 40 to work simultaneously, due to production errors, when the clamping mechanism 40A has already locked one of the mold locking screws 100, the other clamping mechanisms 40B, 40C or 40D have not yet locked the other mold locking screws 100. However, since it is driven by one driving device, due to the limit of the clamping mechanism 40A, the driving device can no longer drive the other clamping mechanisms to move and lock the other mold locking screws, so that the mold cannot be locked. Therefore, in order to solve the above technical problems, as Figures 2 to 5As shown, in the second embodiment of the automatic clamping device for the upper mold, the second connecting mechanism is a second connecting rod assembly 83 with variable length, and the second connecting rod assembly 83 includes a second fixed rod 831 and a second movable rod 832, one end of the second movable rod 832 is movably arranged in the second fixed rod 831, and a third movable groove 833 is arranged on the second fixed rod 831, and also includes a second fixing member 834 that can move in the third movable groove 833 and is fixedly arranged on the second movable rod 832, the second fixing member 834 enables the second movable rod 832 to move within the range of the third movable groove 833, and also includes a fifth elastic element 835 mounted on the second movable rod 832, and the fifth elastic element 835 is arranged on the part of the second movable rod 832 located outside the second fixed rod 831. Through the above arrangement, when there is one set of clamping mechanisms 40A that completes the locking of the corresponding mold locking screws while other clamping mechanisms 40B, 40C or 40D have not completed the locking of the corresponding mold locking screws, the mold locking drive device 10 can continue to drive the sliding seat 20 to move, and the second fixed rod 831 in the clamping mechanism 40A will move toward the direction close to the second moving rod 832, so that the second fixed member 834 is close to one end of the sliding seat 20 in the third moving groove 833, and the fifth elastic element 835 is compressed, so that other clamping mechanisms 40 can continue to move. That is to say, when multiple sets of clamping mechanisms 40A, 40B, 40C, and 40D have completed the locking of the corresponding mold locking screws 100, the corresponding second fixed member 834 will be at different positions in the third moving groove 833, and the degree of compression of the fifth elastic element 835 will also be different, thereby ensuring that all clamping mechanisms driven by the same driving source can lock the corresponding mold locking screws.

[0036] like Fig.11 As shown, the present invention also discloses a tire vulcanizer 1000 having the above-mentioned upper mold automatic locking device 1, the tire vulcanizer having a frame 101, an upper mold 200, an upper template 300 slidably arranged on the frame 101, and also includes the above-mentioned upper mold automatic locking device 1 fixedly arranged on the upper template 300, the upper mold automatic locking device 1 is used to lock the locking screw 100 that passes through the upper template 300 and is fixedly connected to the upper mold 200, thereby realizing automatic fixing of the upper mold 200 to the upper template 300.

[0037] The present invention also discloses an upper mold locking method: Providing an upper mold 200 with a locking screw 100 installed; Lower the upper template 300 to a specified height position (at which the upper template is in contact with or higher than the upper mold), so that the locking screw 100 passes through the fixing hole 400 on the upper template 300; An upper mold automatic clamping device 1 having a first clamping member 41 and a second clamping member 42 is provided, so that the first clamping member 41 and the second clamping member 42 in a separated state move toward each other along a first direction F1; when the first clamping member 41 is completely in contact with the clamping screw 100 in the first direction and reaches the locking position, the second clamping member 42 continues to move along the first direction to contact the first clamping member 41 and lift the first clamping member 41 along the second direction F2; the first clamping member 41 is lifted along the second direction until the first clamping member 41 is completely in contact with the upper end surface of the clamping screw 100 in the second direction F2, so that the upper mold 200 is in contact with the upper mold plate 300 in the second direction F2 to complete the clamping; Optionally, after the mold locking is completed, the upper mold automatic mold locking device 1 is fixed by a safety pin (not shown) so that the first clamping member 41 and the second clamping member 42 cannot move, thereby ensuring the safety of the upper mold 200 during use.

[0038] The present invention mainly provides an upper mold automatic clamping device 1 with a clamping mechanism 40, by arranging a first clamping member 41 and a second clamping member 42 that can move toward each other along a first direction F1 at the same time, and when the first clamping member 41 moves to the locking position, the second clamping member 42 can continue to move toward the first clamping member 41 to drive the first clamping member 41 to move along the second direction F2, so as to achieve the fastening of the clamping screw 100 in the second direction F2, and achieve the automatic clamping of the upper mold 200; by the first connecting mechanism 70 and the second connecting mechanism 80 fixedly arranged on the sliding seat 20, the upper mold 200 can be automatically clamped by the same driving mechanism. The power source drives the first clamping member 41 and the second clamping member 42 to move toward each other or in the opposite direction; after the first clamping member 41 reaches the locking position by moving the adjustment mechanism 90, the second clamping member 42 continues to move toward the direction of the first clamping member 41; through the first inclined surface 412 on the first clamping member 41 and the second inclined surface 422 on the second clamping member 42, the first clamping member 41 can move along the second inclined surface 422 on the second clamping member 42, thereby realizing the movement of the first clamping member 41 along the second direction F2, which has the beneficial effects of simple structure, easy use and high degree of automation.

[0039] The above contents are only some implementation methods of the present application, and their purpose is to illustrate the technical concept and features of the present application. Any equivalent changes or replacement technical solutions that can be easily thought of by any person skilled in the art under the inspiration of the technical content of the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An automatic upper mold locking device for a tire vulcanizer, characterized in that: It includes a locking drive device, a movable sliding seat connected to the locking drive device, and a clamping mechanism connected to the sliding seat, wherein the clamping mechanism includes two groups of first moving components and a first clamping member and a second clamping member movably arranged on the first moving components respectively; the first clamping member is provided with a first locking groove, the second clamping member is provided with a second locking groove, and the first locking groove and the second locking groove are arranged opposite to each other; the first clamping member and the second clamping member can move toward each other or move in the opposite direction along the first direction, and when the first clamping member reaches the locking position along the first direction, the second clamping member continues to move along the first direction, thereby driving the first clamping member to move along the second direction to lock the mold.

2. The upper mold automatic clamping device according to claim 1 is characterized in that: The first clamping member is connected to the sliding seat via a first connecting mechanism, and the second clamping member is connected to the sliding seat via a second connecting mechanism; and also includes a movement adjustment mechanism arranged on the first connecting mechanism.

3. The upper mold automatic clamping device according to claim 2 is characterized in that: A first inclined surface is disposed on the lower surface of the first clamping member, a second inclined surface is disposed on the upper surface of the second clamping member, and the first inclined surface is disposed parallel to the second inclined surface.

4. The upper mold automatic clamping device according to claim 2 is characterized in that: It also includes a connecting piece, the first clamping piece is connected to the connecting piece through a second movable component, the second movable component includes a second sliding sleeve arranged on the connecting piece, and a movable shaft fixedly arranged on the first clamping piece, the movable shaft is slidably arranged in the second sliding sleeve, and also includes a first elastic element on the movable shaft between the connecting piece and the first clamping piece.

5. The upper mold automatic clamping device according to any one of claims 2 to 4, characterized in that: The second connecting mechanism includes a sprocket and chain combination, the sprocket is rotatably arranged on the upper template, one end of the chain is fixedly connected to the second clamping member, and the other end of the chain is connected to the sliding seat; the first connecting mechanism is a first connecting rod, one end of the first connecting rod is hinged to the first clamping member, and the other end of the first connecting rod is hinged to the sliding seat.

6. The upper mold automatic clamping device according to claim 5 is characterized in that: The movable adjustment mechanism is a first movable groove arranged on the sliding seat, and the first connecting rod is hingedly arranged in the first movable groove at one end away from the connection with the first clamping member and can move in the first movable groove; it also includes a second elastic element arranged between the first clamping member and the first movable component.

7. The upper mold automatic clamping device according to claim 6 is characterized in that: The first moving component includes a support member provided with a first sliding sleeve, the support member is arranged along a third direction perpendicular to the first direction, and also includes a shaft rod slidably arranged in the first sliding sleeve, and the other end of the shaft rod is connected to the first clamping member or the second clamping member.

8. The upper mold automatic clamping device according to any one of claims 2 to 4, characterized in that: The second connecting mechanism is a second connecting rod assembly, one end of the second connecting rod assembly is hinged to the second clamping member, and the other end of the second connecting rod assembly is hinged to the sliding seat; the first connecting mechanism includes a first connecting rod assembly and a rotating rod that are hingedly arranged, and a support rod connected to the middle position of the rotating rod, the rotating rod is rotatably arranged on the support rod, the first connecting rod assembly is hinged to the sliding seat at one end away from the rotating rod, and the rotating rod is hinged to the first clamping member at one end away from the first connecting rod assembly.

9. The upper mold automatic clamping device according to claim 8, characterized in that: The first connecting rod assembly includes a first fixed rod and a first movable rod, one end of the first movable rod is movably arranged in the first fixed rod; the movable adjustment mechanism includes a second movable groove arranged on the first fixed rod, and also includes a first fixing member that can move in the second movable groove and is fixedly arranged on the first movable rod, and also includes a fourth elastic element mounted on the first movable rod, and the fourth elastic element is arranged on the part of the first movable rod located outside the first fixed rod.

10. The upper mold automatic clamping device according to any one of claims 1 to 4, characterized in that: The sliding seat includes two groups of first sliding seats and second sliding seats arranged oppositely, and the clamping mechanism includes at least one pair of first clamping mechanism and second clamping mechanism arranged oppositely, the first clamping mechanism is connected to the first sliding seat, and the second clamping mechanism is connected to the second sliding seat; the locking drive device includes a locking drive source, and a transmission device driven by the locking drive source, and the transmission device is respectively connected to the first sliding seat and the second sliding seat.

11. A tire vulcanizing machine, characterized in that: The tire vulcanizer includes a frame, an upper mold for vulcanizing tires, an upper mold plate slidably arranged on the frame, and also includes an upper mold automatic locking device fixedly arranged on the upper mold plate as described in any one of claims 1 to 10, wherein the upper mold automatic locking device is used to lock a locking screw that passes through the upper mold plate and is fixedly connected to the upper mold.

12. A method for clamping an upper mold, characterized in that: Provide an upper die with a locking screw installed; Move the upper mold plate so that the locking screw passes through the fixing hole on the upper mold plate; Providing an upper mold automatic clamping device having a first clamping member and a second clamping member as claimed in claim 1, so that the first clamping member and the second clamping member in a separated state move toward each other along a first direction; When the first clamping member is completely in contact with the clamping screw in the first direction and reaches the locking position, the second clamping member continues to move along the first direction so that the first clamping member is lifted along the second direction; The first clamping member is lifted along the second direction until the first clamping member is completely in contact with the upper end surface of the clamping screw in the second direction, so that the upper mold is in contact with the upper mold plate to complete the clamping.

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