Automatic connecting mechanism for large mold quick-change plate

Abstract

The invention relates to the technical field of forging dies, and discloses a large die quick-change plate automatic connecting mechanism which comprises an upper frame and a lower frame, a plurality of male heads are fixedly connected in the upper frame, upper connectors are in threaded connection with the upper ends of the male heads, a plurality of female heads are fixedly connected in the lower frame, and flaring parts are arranged at the upper ends of the female heads. A sealing piece is installed in the flaring part, the lower end of the female head is in threaded connection with a lower connector, baffle rings and sliding sleeves are fixedly connected in the female head and the female head, sealing mechanisms are installed in the two baffle rings, and the sealing mechanisms are in a conducting state when the male head and the female head are connected in an inserted mode, so that a medium in the upper connector can penetrate through the male head and the female head to enter the lower connector. According to the automatic connecting mechanism for the quick-change plate of the large mold, pipelines can be quickly connected during mold change, manual disassembly and assembly operation is not needed, high sealing performance is achieved after connection, unified locking and pressing can be conducted at the same time, and the leakage phenomenon is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of forging dies, in particular to an automatic connecting mechanism for quick-change plates of large dies. BACKGROUND

[0002] In a hydraulic machine device, because the functions of the die are more and more, the structure is more and more complex, and the die needs to be supplied with oil, water, gas and electricity frequently. When different specifications of dies are replaced, a large number of oil lines, water lines, gas lines and electric lines connected by the original die need to be cut off first, and after the new die is replaced, they need to be connected again. The traditional die replacement method needs to disconnect and reconnect all the pipe connection joints in the die manually. In the case of a small number of pipes, the labor intensity of the operator is acceptable. In the case of a large number of pipes, it will bring great labor intensity to the operator, especially when the pipe diameter is large, which will bring great labor intensity to the operator. When the movable connecting pipe is disassembled and assembled, there is residual pressure in the hydraulic pipe, and the operator needs to wait for the residual pressure in the hydraulic pipe to be released completely before continuing to plug and unplug. Each time this happens, it will greatly prolong the die replacement time. When the movable connecting pipe is disassembled and assembled, the longer the overall replacement time, the more the medium loss caused by the leakage of hydraulic oil or water (mostly industrial condensate water), and the more serious the pollution caused thereby. In the current situation of paying more and more attention to environmental protection, the cost of sewage treatment caused by the treatment of industrial waste oil, waste water and the resulting pollution will bring great pressure to the production enterprises.

[0003] At present, the traditional die replacement method is to disconnect the die pipe connection joint manually, and then reconnect the die pipe connection joint manually after the new die is fixed. This operation method has high labor intensity, takes a long time, and also leaks hydraulic oil and industrial water. SUMMARY

[0004] (I) Technical problems solved In view of the shortcomings of the prior art, the present application provides an automatic connecting mechanism for quick-change plates of large dies, which solves the problem that the traditional die replacement method is to disconnect the die pipe connection joint manually, and then reconnect the die pipe connection joint manually after the new die is fixed. This operation method has high labor intensity, takes a long time, and also leaks hydraulic oil and industrial water.

[0005] (II) Technical solutions To achieve the above object, the present application provides the following technical scheme: a large mold quick-change plate automatic connecting mechanism, comprising an upper frame and a lower frame, a plurality of male heads are fixedly connected in the upper frame, an upper joint is threadedly connected to the upper end of each of the plurality of male heads, a plurality of female heads are fixedly connected in the lower frame, an expanded portion is arranged at the upper end of each of the plurality of female heads, a sealing element is installed in the expanded portion, and a lower joint is threadedly connected to the lower end of each of the plurality of female heads; A stop ring and a sliding sleeve are fixedly connected in each of the male head and the female head, a sealing mechanism is installed in each of the two stop rings, and the sealing mechanism is in a conductive state when the male head and the female head are inserted, so that the medium in the upper joint can pass through the male head and the female head and enter the lower joint. A locking mechanism is installed in the upper frame, a plurality of locking boxes that cooperate with the locking mechanism are installed at the upper end of the lower frame, and a plurality of through holes that cooperate with the locking boxes are formed at the lower end of the upper frame. Two first connecting seats are fixedly connected to the side walls of the upper frame in a symmetrical manner, and two second connecting seats are movably installed on the side walls of the lower frame in a symmetrical manner. A wire harness plug is installed in the upper frame, and a wire harness joint is installed in the lower frame.

[0006] Preferably, the sealing element comprises a sealing ring and a rubber ring, the sealing ring and the rubber ring are sleeved in the expanded portion, gaskets are fixedly connected to the upper and lower ends of the sealing ring, two arc-shaped protrusions are arranged on the inner and outer sides of the sealing ring, a locking ring is arranged between the two arc-shaped protrusions on the inner and outer sides of the sealing ring, the cross section of the locking ring is in a trapezoidal structure, an annular protrusion is arranged at one end of the rubber ring, the annular protrusion is in contact with the gasket at the lower end of the sealing ring, an extension is arranged at the other end of the rubber ring, a chamfer is arranged in the expanded portion, the extension is in contact with the chamfer, and the lower end of the male head is inserted into the female head through the sealing element.

[0007] Preferably, a press ring is fixedly connected to the side wall of the male head, the press ring is sleeved in the expanded portion, two anti-skid protrusions are arranged at the lower end of the press ring, the anti-skid protrusions are in contact with the upper end of the sealing structure, a limiting ring is fixedly connected to the opening of the expanded portion, the inner diameter of the limiting ring is smaller than the outer diameter of the gasket, and the inner diameter of the limiting ring is larger than the outer diameter of the press ring.

[0008] Preferably, a boss is arranged in the female head, a sealing ring is sleeved on the boss, an inner protrusion is arranged in the sealing ring, and a clamping groove that is the same as the structure at the upper end of the sealing ring is formed at the lower end of the male head.

[0009] Preferably, an annular groove is arranged on the side wall of the male head, two oil passing holes that communicate with the inside of the male head are formed in the side wall of the annular groove, a rubber tube is fixedly connected between the opposite sides of the annular groove, an oil storage cavity is formed between the inner wall of the rubber tube and the annular groove, and two sealing grooves are formed in the inner wall of the female head.

[0010] Preferably, the sealing mechanism comprises a sealing plug, the upper and lower ends of the sealing plug are both frustoconical structures, one end of the sealing plug is fixedly connected with a top column, the other end of the sealing plug is fixedly connected with a guide column, the side wall of the guide column is sleeved with a spring, one end of the spring is in contact with one end of the sealing plug, the other end of the spring is in contact with one end of a sliding sleeve, the end of the guide column away from the sealing plug extends into the sliding sleeve, the inner side of the retaining ring is provided with an inclined surface matched with one end of the sealing plug, and a rubber ring is embedded at the inclined surface.

[0011] Preferably, the locking mechanism comprises two bidirectional lead screws, the rod walls of the two bidirectional lead screws are both fixedly connected with worm gears, a rectangular rod is sleeved in the locking frame, an inclined surface is formed at one end corner of the rectangular rod, a threaded hole is formed at the other end of the rectangular rod, the rectangular rod is connected with the rod walls of the bidirectional lead screws through the threaded hole, a snap ring is fixedly connected in the upper frame, the rectangular rod is slidingly sleeved in the snap ring, a reduction motor is fixedly connected in the upper frame, the reduction motor is provided with two output shafts, one end of each of the two output shafts is fixedly connected with a worm, and the worm is engaged with the worm gear.

[0012] Preferably, the side wall of the lower frame is provided with two rectangular openings, a limiting column is fixedly connected in each of the two rectangular openings, a sliding block is sleeved in the rectangular opening, sliding grooves are formed in the opposite sides of the sliding block, the two sliding grooves are slidingly connected with the opposite sides of the rectangular opening respectively, limiting holes are symmetrically formed in the side wall of the sliding block, the limiting holes are sleeved with the limiting columns, and the second connecting seat is fixed on one side of the sliding block in the two rectangular openings through bolts.

[0013] Preferably, the wire harness plug comprises an insulating tube, wires and a metal plug rod are fixedly connected in the insulating tube through an insulating frame, a first sealing connector is fixedly connected to the upper end of the insulating tube, the wire harness connector comprises an insulating seat, wires and a metal connector pipe are fixedly connected in the insulating seat through an insulating frame, and a second sealing connector is fixedly connected to the lower end of the insulating seat.

[0014] Preferably, the lower end of the upper frame is fixedly connected with a plurality of positioning columns, the upper end of the lower frame is provided with a plurality of positioning holes, and the plurality of positioning holes are matched with the plurality of positioning columns respectively.

[0015] (Three) beneficial effects Compared with the prior art, the present application provides a large mold quick-change plate automatic connection mechanism, which has the following beneficial effects: 1、In the upper die and slider connection, male head into the female, by starting the locking mechanism into the locking frame, that is, further make male and female connection close, when the connection, male and female between the multiple sealing structure, can make male and female between the sealed state, in the delivery medium, will not produce leakage, medium is commonly used water, gas and oil, in the male and female completely inserted, the sealing mechanism installed between the two mutual contact, namely through the column contact after pushing the sealing plug movement, sealing plug movement after driving the guide column in the sliding sleeve, the sealing plug compression spring makes it shrink, so that the sealing plug and the retainer ring separation, at this time, the male and female between the realization of the lead, the internal transport medium can be smoothly through, in the separation of male and female, the spring force can be timely push the sealing plug reset and the rubber ring in the retainer ring contact to realize sealing, so as to avoid the existence of residual pressure in the pipeline, the oil, water medium leakage.

[0016] 2、Through the setting of rubber pipe, sealing ring, rubber ring and sealing ring can form multiple sealing structure between the male and female, so that the male and female can withstand greater medium pressure without traditional bolt tightening, no leakage phenomenon in normal work.

[0017] 3、The locking mechanism provided in the application, when in use, the reduction motor works to drive the worm to rotate the worm wheel, the worm wheel rotates to drive the bidirectional screw rod to move by using the thread, when the rectangular rod moves, the inclined surface at one end of the rectangular rod is inserted into the locking frame first, until the flat part of the rectangular rod is completely inserted into the locking frame, because the lower frame and the second connecting seat are movably connected through the sliding block, when the rectangular rod is inserted into the locking frame, the lower frame can be further lifted, the female head and the male head are further inserted, and the sealing element can be deformed between the two, so that the sealing property between the male head and the female head is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure schematic view of a large mold quick change plate automatic connection mechanism proposed in the application; Figure 2 It is a sectional view of a large mold quick change plate automatic connection mechanism proposed in the application; Figure 1 Figure 3 It is a sectional view of a large mold quick change plate automatic connection mechanism proposed in the application; Figure 4 It is a sectional view of a large mold quick change plate automatic connection mechanism proposed in the application; Figure 5 It is a sectional view of a large mold quick change plate automatic connection mechanism proposed in the application; ​Figure 6 A cross-sectional view of the male head and female head in a large mold quick-change plate automatic connection mechanism according to the present application; Figure 7 A cross-sectional view of the insulating seat and insulating pipe in a large mold quick-change plate automatic connection mechanism according to the present application; Figure 8 A structural schematic diagram of a sealing mechanism in a large mold quick-change plate automatic connection mechanism according to the present application; Figure 9 A structural schematic diagram of the female head and male head in a large mold quick-change plate automatic connection mechanism according to the present application; Figure 10 A structural schematic diagram of a sealing element in a large mold quick-change plate automatic connection mechanism according to the present application; Figure 11 An effect diagram of a large mold quick-change plate automatic connection mechanism installed on an upper mold and a lower mold according to the present application; Figure 12 A top view of a large mold quick-change plate automatic connection mechanism according to the present application; Figure 11 Figure 13 A structural schematic diagram of a traditional mold connection pipeline.

[0019] In the figure: 1, lower frame; 2, insulating seat; 3, second sealing joint; 4, female head; 5, upper frame; 6, upper joint; 7, first sealing joint; 8, rectangular rod; 9, speed reducer motor; 10, lower joint; 11, male head; 12, rubber pipe; 13, positioning column; 14, worm gear; 15, worm; 16, bidirectional screw; 17, inclined surface; 18, snap ring; 19, locking frame; 20, insulating pipe; 21, sliding block; 22, limiting column; 23, flared portion; 24, sealing ring; 25, pressing ring; 26, anti-slip protrusion; 27, inner protrusion; 28, rubber ring; 29, oil passage; 30, sealing groove; 31, flow passage; 32, sealing ring; 33, retaining ring; 34, sealing plug; 35, jacking column; 36, washer; 37, spring; 38, sliding sleeve; 39, guide column; 40, metal insertion rod; 41, metal pipe; 42, annular protrusion; 001, sliding block; 002, upper module; 003, lower module; 004, movable workbench; 005, movable connection pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.​

[0021] Embodiment 1: refer to the attached drawings Figures 1-13 The utility model provides a large -scale mould quick change board automatic connecting mechanism, including upper frame 5 and lower frame 1, a plurality of male head 11 are fixedly connected in upper frame 5, and the upper end of a plurality of male head 11 is all threadedly connected with upper joint 6, a plurality of female head 4 are fixedly connected in lower frame 1, and the upper end of a plurality of female head 4 is all provided with flared portion 23, and the flared portion 23 is installed with sealing element, and the lower end of female head 4 is threadedly connected with lower joint 10; The utility model provides a large -scale mould quick change board automatic connecting mechanism, including upper frame 5 and lower frame 1, a plurality of male head 11 are fixedly connected in upper frame 5, and the upper end of a plurality of male head 11 is all threadedly connected with upper joint 6, a plurality of female head 4 are fixedly connected in lower frame 1, and the upper end of a plurality of female head 4 is all provided with flared portion 23, and the flared portion 23 is installed with sealing element, and the lower end of female head 4 is threadedly connected with lower joint 10; The utility model provides a large -scale mould quick change board automatic connecting mechanism, including upper frame 5 and lower frame 1, a plurality of male head 11 are fixedly connected in upper frame 5, and the upper end of a plurality of male head 11 is all threadedly connected with upper joint 6, a plurality of female head 4 are fixedly connected in lower frame 1, and the upper end of a plurality of female head 4 is all provided with flared portion 23, and the flared portion 23 is installed with sealing element, and the lower end of female head 4 is threadedly connected with lower joint 10; The utility model provides a large -scale mould quick change board automatic connecting mechanism, including upper frame 5 and lower frame 1, a plurality of male head 11 are fixedly connected in upper frame 5, and the upper end of a plurality of male head 11 is all threadedly connected with upper joint 6, a plurality of female head 4 are fixedly connected in lower frame 1, and the upper end of a plurality of female head 4 is all provided with flared portion 23, and the flared portion 23 is installed with sealing element, and the lower end of female head 4 is threadedly connected with lower joint 10;

[0022] The utility model provides a large -scale mould quick change board automatic connecting mechanism, including upper frame 5 and lower frame 1, a plurality of male head 11 are fixedly connected in upper frame 5, and the upper end of a plurality of male head 11 is all threadedly connected with upper joint 6, a plurality of female head 4 are fixedly connected in lower frame 1, and the upper end of a plurality of female head 4 is all provided with flared portion 23, and the flared portion 23 is installed with sealing element, and the lower end of female head 4 is threadedly connected with lower joint 10; The utility model provides a large -scale mould quick change board automatic connecting mechanism, including upper frame 5 and lower frame 1, a plurality of male head 11 are fixedly connected in upper frame 5, and the upper end of a plurality of male head 11 is all threadedly connected with upper joint 6, a plurality of female head 4 are fixedly connected in lower frame 1, and the upper end of a plurality of female head 4 is all provided with flared portion 23, and the flared portion 23 is installed with sealing element, and the lower end of female head 4 is threadedly connected with lower joint 10; The utility model provides a large -scale mould quick change board automatic connecting mechanism, including upper frame 5 and lower frame 1, a plurality of male head 11 are fixedly connected in upper frame 5, and the upper end of a plurality of male head 11 is all threadedly connected with upper joint 6, a plurality of female head 4 are fixedly connected in lower frame 1, and the upper end of a plurality of female head 4 is all provided with flared portion 23, and the flared portion 23 is installed with sealing element, and the lower end of female head 4 is threadedly connected with lower joint 10;

[0023] As Figure 11As shown, the first connecting seat installs the upper frame 5 on the slider 001 by bolts, and the second connecting seat installs the lower frame 1 on the upper mold 002 by bolts. The upper frame 5 and the lower frame 1 on the movable workbench 004 and the lower mold 003 are also connected according to the same technical requirements. At this time, the male head 11 installed on the upper frame 5 and the female head 4 installed on the slider 001 are in a state of waiting to be connected. After the upper mold 002 is connected with the slider 001, the male head 11 is inserted into the female head 4, and by starting the locking mechanism to be inserted into the locking box 19, the male head 11 and the female head 4 can be further connected tightly. When connecting, there are multiple sealing structures between the male head 11 and the female head, which can make the male head 11 and the female head 4 in a sealed state. When conveying medium, no leakage will occur. The medium is commonly used water, gas and oil. When the male head 11 and the female head 4 are completely inserted, the sealing mechanisms installed between them contact each other. That is, after the top column 35 contacts and pushes the sealing plug 34 to move, the sealing plug 34 moves and drives the guide column 39 to slide in the sliding sleeve 38. At this time, the sealing plug 34 compresses the spring 37 to make it shrink. In this way, the sealing plug 34 can be separated from the blocking ring 33. At this time, the male head 11 and the female head 4 can realize conduction, and the medium conveyed in the inside can pass through smoothly. When the male head 11 and the female head 4 are separated, the elastic force of the spring 37 can timely push the sealing plug 34 to reset and contact the rubber ring in the blocking ring 33 to realize sealing, so as to avoid the large amount of oil and water medium dripping due to the residual pressure in the pipeline. Meanwhile, a wire harness plug and a wire harness connector are also provided, and the metal insertion rod 40 and the metal connection pipe 41 can realize the connection of the positive wire, the negative wire and the ground wire.

[0024] As shown in the traditional mold connecting pipeline schematic diagram, Figure 13 When replacing the mold each time, the upper mold 002 and the lower mold 003 need to be closed first, then the operator enters the hydraulic machine working area, and manually disconnects all position movable connectors. Then, the movable workbench 004 takes the upper mold 002, the lower mold 003 and all movable connecting pipes 005 to the outside of the hydraulic machine. After replacing the new mold outside the hydraulic machine, the movable workbench 004 takes the new upper mold 002, the new lower mold 003 and all new movable connecting pipes 005 to the hydraulic machine working area, and manually connects all position movable connectors. Finally, the slider 001 takes away the upper mold 002, and thus completes the mold replacement once. Compared with the prior art, the movable male head 11 and the female head 4 in plug-in type can realize quick connection between the mold and the slider and the moving workbench, all the connection joints on the mold can be classified according to oil / water / gas / electricity according to the needs of the user, and integrated into several customized automatic connection plates, so that manual replacement is no longer needed, the huge gravity kinetic energy of each part of the press equipment during movement is reasonably utilized, the plug-in connection process of the connection joint is completed, all the joints on the integrated plate are separated or connected at the same time, and the efficiency is very high.

[0025] In addition, because the whole process is very short, the energy consumption caused by waiting on the press equipped with auxiliary equipment such as a heating furnace is reduced to a very low level. Moreover, the “first piece scrappage” phenomenon induced by long-time waiting of the hydraulic system is greatly improved.

[0026] Embodiment 2: different from embodiment 1, that is; Referring to the accompanying Figures 4-7 and Figure 10 The sealing element includes a sealing ring 24 and a rubber ring 28, both of which are sleeved in the flared portion 23, the upper and lower ends of the sealing ring 24 are fixedly connected with the gaskets 36, the inner and outer sides of the sealing ring 24 are provided with two arc-shaped protrusions, the inner and outer sides of the sealing ring 24 are provided with a locking ring between the two arc-shaped protrusions, the cross section of the locking ring is a trapezoidal structure, one end of the rubber ring 28 is provided with an annular protrusion 42, the annular protrusion 42 is in contact with the gasket 36 at the lower end of the sealing ring 24, the other end of the rubber ring 28 is provided with an extension, the flared portion 23 is provided with a chamfer, the extension is in contact with the chamfer, and the lower end of the male head 11 is inserted into the female head 4 through the sealing element; The side wall of the male head 11 is fixedly connected with a pressing ring 25, the pressing ring 25 is sleeved in the flared portion 23, the lower end of the pressing ring 25 is provided with two anti-skid protrusions 26, the anti-skid protrusions 26 are in contact with the upper end of the sealing structure, the opening of the flared portion 23 is fixedly connected with a limiting ring, the inner diameter of the limiting ring is smaller than the outer diameter of the gasket 36, the inner diameter of the limiting ring is larger than the outer diameter of the pressing ring 25, the female head 4 is provided with a boss, the boss is sleeved with a sealing ring 32, the sealing ring 32 is provided with an inner protrusion 27, the lower end of the male head 11 is provided with a clamping groove which is the same as the upper end structure of the sealing ring 32, the side wall of the male head 11 is provided with an annular groove, two oil passing holes 29 which are in communication with the inside of the male head 11 are formed in the side wall of the annular groove, a rubber tube 12 is fixedly connected between the opposite sides of the annular groove, an oil storage cavity is formed between the inner wall of the rubber tube 12 and the annular groove, and two sealing grooves 30 are formed in the inner wall of the female head 4.

[0027] The sealing member provided by the application can provide a multi-channel sealing structure when the male head 11 and the female head 4 are connected, the rubber ring 32 installed between the male head 11 and the female head 4 can provide the first channel of sealing, and the inner recess 27 can form a good sealing between the male head 11 and the female head 4 when being deformed by extrusion, the flat surface at the top of the rubber ring 32 is located at the gap between the connection positions of the male head 11 and the female head 4, and can further provide the sealing; The rubber tube 12 installed on the side wall of the female head 4 can provide the second channel of sealing with the sealing groove 30, when the medium pressure increases, the medium enters the oil storage cavity through the oil hole 29, and when the medium pressure increases, the rubber tube 12 is deformed and extruded into the sealing groove 30 to form a continuous curved surface structure, so that the sealing effect can be continued when the first channel of sealing fails; When the sealing ring 24 installed in the flared portion 23 is extruded by the compression ring 25, the two arc-shaped protrusions and the locking ring provided on the side wall of the sealing ring 24 are in close contact with the side wall of the male head 11 and the flared portion, at this time, the third channel of sealing can be provided, in addition, when the sealing ring 24 is extruded, the gasket 36 extrudes the annular protrusion 42 at the upper end of the rubber ring 28, the annular protrusion 42 is deformed under the force, and the extension part at the lower part of the annular protrusion 42 is extruded, at this time, the extension part can be deformed at the joint between the male head 11 and the flared portion 23, so that the further sealing effect can be achieved, and the male head 11 and the female head 4 can withstand a larger medium pressure without being tightened by the traditional bolt, and no leakage phenomenon occurs during normal operation.

[0028] Embodiment 3: different from embodiment 1; Referring to the drawings Figures 2-3 The locking mechanism comprises two bidirectional screws 16, the rod walls of the two bidirectional screws 16 are fixedly connected with worm wheels 14, a rectangular rod 8 is sleeved in the locking frame 19, an inclined surface 17 is formed at one end corner of the rectangular rod 8, a threaded hole is formed at the other end of the rectangular rod 8, the rectangular rod 8 is connected with the rod walls of the bidirectional screws 16 through the threaded hole, a snap ring 18 is fixedly connected in the upper frame 5, the rectangular rod 8 is slidably sleeved in the snap ring 18, a reduction motor 9 is fixedly connected in the upper frame 5, the reduction motor 9 is provided with two output shafts, one end of each of the two output shafts is fixedly connected with a worm 15, and the worm 15 is engaged with the worm wheel 14. A plurality of positioning columns 13 are fixedly connected to the lower end of the upper frame 5, a plurality of positioning holes are formed in the upper end of the lower frame 1, and the plurality of positioning holes are matched with the plurality of positioning columns 13.

[0029] The locking mechanism is provided, when in use, the speed reducer 9 works to drive the worm 15 to rotate the worm wheel 14, the worm wheel 14 rotates to drive the bidirectional screw rod 16 to move the rectangular rod 8 through the thread, when the rectangular rod 8 moves, the inclined surface 17 at one end of the rectangular rod 8 is inserted into the locking frame 19 first, until the flat surface of the rectangular rod 18 is completely inserted into the locking frame 19, since the lower frame 1 and the second connecting seat are movably connected through the sliding block 21, when the rectangular rod 8 is inserted into the locking frame 19, the lower frame 1 can be further lifted, the female head 4 and the male head 11 are further inserted, the sealing element can be deformed between the two, so that the sealing property between the male head 11 and the female head 4 can be further improved.

[0030] It should be noted that the term "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0031] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, alternatives, and variations can be made in the embodiments without departing from the spirit and scope of the present application as defined by the appended claims and their equivalents.

Claims

1. A large mold quick-change plate automatic connection mechanism, comprising an upper frame (5) and a lower frame (1), characterized in that: A plurality of male heads (11) are fixedly connected in the upper frame (5), the upper ends of the plurality of male heads (11) are threadedly connected with upper joints (6), a plurality of female heads (4) are fixedly connected in the lower frame (1), the upper ends of the plurality of female heads (4) are provided with flared portions (23), the flared portions (23) are provided with sealing elements, and the lower ends of the female heads (4) are threadedly connected with lower joints (10). The common and female heads (4) are fixedly connected with stop rings (33) and sliding sleeves (38), the sealing mechanisms are mounted in the two stop rings (33), and the sealing mechanisms are in a conductive state when the male head (11) and the female head (4) are inserted, so that the medium in the upper joint (6) can pass through the male head (11) and the female head (4) and enter the lower joint (10). The upper frame (5) is provided with a locking mechanism, the upper end of the lower frame (1) is provided with a plurality of locking frames (19) matched with the locking mechanism, the lower end of the upper frame (5) is provided with a plurality of through holes matched with the locking frames (19), the side wall of the upper frame (5) is fixedly connected with two first connecting seats, the side wall of the lower frame (1) is movably provided with two second connecting seats, the upper frame (5) is provided with a wire harness plug, and the lower frame (1) is provided with a wire harness connector.

2. The automatic connection mechanism for quick change of large mold plate according to claim 1, characterized in that: The sealing element comprises a sealing ring (24) and a rubber ring (28), the sealing ring (24) and the rubber ring (28) are sleeved in the flared portion (23), the upper and lower ends of the sealing ring (24) are fixedly connected with gaskets (36), the inner and outer sides of the sealing ring (24) are provided with two arc protrusions, the inner and outer sides of the sealing ring (24) are provided with a locking ring between the two arc protrusions, the locking ring has a trapezoidal structure, one end of the rubber ring (28) is provided with an annular protrusion (42), the annular protrusion (42) is in contact with the gasket (36) at the lower end of the sealing ring (24), the other end of the rubber ring (28) is provided with an extension, the flared portion (23) is provided with a chamfer, the extension is in contact with the chamfer, and the lower end of the male head (11) penetrates into the female head (4) through the sealing element.

3. The quick-change plate automatic connection mechanism for a large mold according to claim 2, characterized in that: The side wall of the male head (11) is fixedly connected with a pressing ring (25), the pressing ring (25) is sleeved in the flared portion (23), the lower end of the pressing ring (25) is provided with two anti-skid protrusions (26), the anti-skid protrusions (26) are in contact with the upper end of the sealing structure, the opening of the flared portion (23) is fixedly connected with a limiting ring, the inner diameter of the limiting ring is smaller than the outer diameter of the gasket (36), and the inner diameter of the limiting ring is larger than the outer diameter of the pressing ring (25).

4. The quick-change plate automatic connection mechanism for large molds according to claim 1, characterized in that: The female head (4) is provided with a boss, the boss is sleeved with a sealing ring (32), the sealing ring (32) is provided with an inner protrusion (27), and the lower end of the male head (11) is provided with a clamping groove same as the structure of the upper end of the sealing ring (32).

5. The quick-change plate automatic connection mechanism for large molds according to claim 1, characterized in that: The side wall of the male head (11) is provided with an annular groove, the side wall of the annular groove is provided with two oil passing holes (29) in communication with the inside of the male head (11), the opposite sides of the annular groove are fixedly connected with rubber tubes (12), the inner wall of the rubber tube (12) and the annular groove form an oil storage cavity, and the inner wall of the female head (4) is provided with two sealing grooves (30).

6. The quick-change plate automatic connection mechanism for large molds according to claim 1, characterized in that: The sealing mechanism comprises a sealing plug (34), the upper and lower ends of the sealing plug (34) are both circular truncated cone structures, one end of the sealing plug (34) is fixedly connected with a top column (35), the other end of the sealing plug (34) is fixedly connected with a guide column (39), the side wall of the guide column (39) is sleeved with a spring (37), one end of the spring (37) is in contact with one end of the sealing plug (34), the other end of the spring (37) is in contact with one end of a sliding sleeve (38), the end of the guide column (39) away from the sealing plug (34) extends into the sliding sleeve (38), the inner side of the retaining ring (33) is provided with an inclined surface (17) matched with one end of the sealing plug (34), a rubber ring is embedded at the inclined surface (17), and the inner sides of the male head (11) and the female head (4) are provided with flow grooves (31) matched with the side wall of the sealing plug (34).

7. The quick-change plate automatic connection mechanism for large molds according to claim 1, characterized in that: The locking mechanism comprises two bidirectional screws (16), the rod walls of the two bidirectional screws (16) are fixedly connected with worm wheels (14), the locking frame (19) is sleeved with a rectangular rod (8), one end of the rectangular rod (8) is provided with an inclined surface (17), the other end of the rectangular rod (8) is provided with a threaded hole, the rectangular rod (8) is connected with the rod walls of the bidirectional screws (16) through the threaded hole, the upper frame (5) is fixedly connected with a snap ring (18), the rectangular rod (8) is slidingly sleeved in the snap ring (18), the upper frame (5) is fixedly connected with a speed reducer (9), the speed reducer (9) is provided with two output shafts, one end of the two output shafts is fixedly connected with a worm (15), and the worm (15) is engaged with the worm wheel (14).

8. The quick-change plate automatic connection mechanism for a large mold according to claim 1, characterized in that: The side wall of the lower frame (1) is provided with two rectangular openings, the two rectangular openings are fixedly connected with limiting columns (22), the rectangular openings are sleeved with sliding blocks (21), the opposite sides of the sliding block (21) are provided with sliding grooves, the two sliding grooves are slidingly connected with the opposite sides of the rectangular openings respectively, the side wall of the sliding block (21) is symmetrically provided with limiting holes, the limiting holes are sleeved with the limiting columns (22), and the second connecting seat is fixed on one side of the sliding block (21) in the two rectangular openings through bolts.

9. The quick-change plate automatic connection mechanism for a large mold according to claim 1, characterized in that: The wire harness plug comprises an insulating tube (20), the insulating tube (20) is fixedly connected with a wire and a metal plug rod (40) through an insulating frame, the upper end of the insulating tube (20) is fixedly connected with a first sealing joint (7), the wire harness joint comprises an insulating seat (2), the insulating seat (2) is fixedly connected with a wire and a metal pipe (41) through an insulating frame, and the lower end of the insulating seat (2) is fixedly connected with a second sealing joint (3).

10. The quick-change plate automatic connection mechanism for a large mold according to claim 1, characterized in that: The lower end of the upper frame (5) is fixedly connected with a plurality of positioning columns (13), and the upper end of the lower frame (1) is provided with a plurality of positioning holes which are matched with the positioning columns (13) respectively.

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