CN116277811A - Two-plate injection molding machine mode locking structure with anti-blocking function - Google Patents

Abstract

The invention discloses a two-plate injection molding machine mold locking structure with an anti-locking function, which relates to the technical field of two-plate injection molding machine mold locking structures and comprises a body, wherein a head plate is fixedly connected to the body, a movable mold plate is connected to the body in a sliding manner, a mold shifting cylinder is fixedly connected to the head plate, the telescopic end of the mold shifting cylinder is fixedly connected with the movable mold plate, a pull rod which is movably connected with the movable mold plate is fixedly connected to the head plate, a plurality of groups of first clamping teeth are arranged on the pull rod, the two-plate injection molding machine mold locking structure with the anti-locking function is provided with a limiting assembly, and a sliding plate is extruded after being locked through the cooperation of a fixing assembly, so that the sliding plate is fixed, the occurrence of the situation of tooth collision can be avoided through the arrangement of the limiting assembly, and the problem that in the prior art, the two groups of clamping teeth are easy to occur due to the fact that teeth on the pull rod are fixedly arranged with teeth in a mold locking piston in the mold locking process is solved.

Description

Two-plate injection molding machine mode locking structure with anti-blocking function

Technical Field

The invention relates to the technical field of two-plate injection molding machine mold locking structures, in particular to a two-plate injection molding machine mold locking structure with an anti-locking function.

Background

Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment for producing plastic products of various shapes from thermoplastic or thermosetting plastics by using plastic molding dies, and are divided into vertical, horizontal and all-electric type, and the injection molding machines can heat the plastics, apply high pressure to the molten plastics, and make the molten plastics be ejected to fill the die cavity of the dies.

At present, a two-plate injection molding machine needs to be locked through a mold locking mechanism in the using process, while the mold locking mechanism in the prior art locks the mold through the dislocation of teeth on a mold locking piston and teeth on a pull rod and the action between two groups of teeth, but the mold locking in the prior art has certain defects, such as the phenomenon that teeth exist in the mold locking process in the prior art, the problem needs to be calculated very precisely and the machine runs precisely, but the equipment has the old condition, so that errors exist in the running process of the machine equipment very frequently, the condition of the teeth can be caused, damage is caused to the teeth, and the normal use of the mold locking mechanism is influenced. Therefore, we propose a two-plate injection molding machine mode locking structure with anti-blocking function.

Disclosure of Invention

The invention aims to provide a two-plate injection molding machine mold locking structure with an anti-locking function, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a two board injection molding machine mode locking structures with anti-sticking dead function, includes the body, fixedly connected with head board on the body, just sliding connection has the movable mould board on the body, fixedly connected with movable mould hydro-cylinder on the head board, the flexible end of movable mould hydro-cylinder with movable mould board fixed connection, just fixedly connected with on the head board with movable mould board swing joint's pull rod, be provided with a plurality of groups of first latches on the pull rod, just fixedly connected with four groups of mode locking hydro-cylinders on the movable mould board, fixedly connected with in the mode locking hydro-cylinder overlaps the mode locking piston in the pull rod outside; the die locking device comprises a die locking piston, a die locking assembly and a limiting assembly, wherein the die locking piston is used for locking a die, the die locking assembly is used for locking the die locking piston, the die locking assembly comprises a plurality of groups of sliding plates which are in sliding connection with the die locking piston, a plurality of groups of second clamping teeth which are meshed with the first clamping teeth are arranged at the bottom end of the sliding plate, the cross sections of the first clamping teeth and the second clamping teeth are triangular, and the die locking assembly is used for locking the die locking operation through the meshing action of the first clamping teeth and the second clamping teeth; the fixed subassembly is used for being right the sliding plate is fixed the fixed subassembly install in the clamping piston and with spacing subassembly is connected, the fixed subassembly include with sliding plate fixed connection's fixed plate, the fixed plate with clamping piston sliding connection, just two sets of slipmats are installed to one side of fixed plate, slipmat's one end fixedly connected with extrusion rod, the fixed subassembly through with spacing subassembly's cooperation, right after carrying out spacing to the pull rod pass through the extrusion rod with slipmat right the fixed plate extrudes and then to the sliding plate is extruded, makes the sliding plate receives fixed unable slip after the extrusion.

Preferably, the limiting component comprises a plurality of groups of sleeves arranged in the mold locking piston, a movable block is connected in the sleeves in a sliding manner, a push rod is fixedly connected to one end of the movable block, a sliding block is fixedly connected to one end of the push rod and is in sliding connection with the sliding plate, a sliding groove matched with the sliding block is formed in the sliding plate, and an air inlet piece is communicated with the top end of the sleeve.

Preferably, the air inlet piece is including the cover locating the annular pipe of mode locking piston surface, one side of annular pipe rotates and is connected with the cover and locates the sealing ring of mode locking piston surface, the intercommunication has the multiunit intake pipe on the sealing ring, just the intercommunication on the annular pipe have install in the pressure piece in the movable mould board, the one end intercommunication of intake pipe has first connector, the intercommunication has the connecting pipe on the first connector, the one end intercommunication of connecting pipe has with another group the second connector of sleeve pipe intercommunication.

Preferably, the fixed assembly comprises a plurality of groups of connecting sleeves, the plurality of groups of connecting sleeves are respectively sleeved on the outer surfaces of the extrusion rods, movable sheets fixedly connected with the extrusion rods are connected in the connecting sleeves in a sliding manner, communicating pipes are communicated with the top ends of the connecting sleeves, gas transmission pipes are communicated with the communicating pipes, sealing pipes communicated with the gas inlet pipes are communicated with the top ends of the gas transmission pipes, and sealing pieces for controlling the opening and closing of the sealing pipes are arranged in the sealing pipes.

Preferably, the pressure piece is including being fixed in the pressure pipe in the movable mould board, sliding connection has the piston piece in the pressure pipe, just a plurality of groups of through-holes have been seted up on the top of pressure pipe, the other end intercommunication of pressure pipe have with the blast pipe of annular pipe intercommunication, just be connected with on the piston piece be used for promoting the propelling piece that the piston piece removed.

Preferably, the pushing member comprises a thread sleeve fixedly connected with the piston plate, the thread sleeve is in sliding connection with the pressure pipe, the thread sleeve is internally in threaded connection with a threaded rod rotationally connected with the movable mould plate, and the top end of the threaded rod is connected with a rotating member for driving the threaded rod to rotate.

Preferably, the rotating member comprises a fixing frame fixedly connected with the movable mould plate, a band-type brake oil cylinder is fixedly connected to the fixing frame, a first connecting block rotationally connected with the mould locking piston is rotationally connected to the output end of the band-type brake oil cylinder, a first connecting rod is rotationally connected to the first connecting block, one end of the first connecting rod is rotationally connected with a second connecting block rotationally connected with the other group of mould locking pistons, four groups of second connecting blocks are rotationally connected to the mould locking pistons, a third connecting block is rotationally connected to the mould locking pistons, a second connecting rod is rotationally connected between the two groups of third connecting blocks in the horizontal direction, and a transmission member for driving a threaded rod to rotate is connected to the mould locking pistons.

Preferably, the transmission member comprises a first bevel gear fixedly connected with the mode locking piston, a second bevel gear fixedly connected with the threaded rod is meshed with the outer side of the first bevel gear, and the diameter of the first bevel gear is larger than that of the second bevel gear.

Preferably, the sealing element comprises a fixing piece fixed in the sealing tube, a plurality of groups of vent holes are formed in the fixing piece, a fixing column is fixedly connected to the fixing piece, a sealing piece is slidably connected to the top end of the fixing column, a fixing ring fixedly connected with the sealing tube is movably connected to the outer surface of the sealing piece, and a spring sleeved on the outer surface of the fixing column is fixedly connected between the sealing piece and the fixing piece.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the limiting component is arranged, so that when the movable template is locked, air pressure is conveyed into the sleeve by the action of the air inlet component, the movable block in the sleeve is driven to move when the air pressure in the sleeve is increased, the push rod is driven to move by the action of the movable block, the sliding plate is driven to move, the second clamping teeth on the sliding plate are clamped on the first clamping teeth, and when the first clamping teeth and the second clamping teeth collide, the first clamping teeth and the second clamping teeth are triangular in cross section, so that the second clamping teeth automatically drive the sliding plate to deviate in the process of collision teeth, the first clamping teeth and the second clamping teeth are stably clamped, the pull rod is limited, and the sliding plate is extruded after the clamping by the cooperation of the fixing component, so that the sliding plate is fixed, and the limiting and fixing actions are completed, so that the situation of collision teeth can be avoided, and the problem that in the prior art, the sliding teeth on the pull rod are easily and the piston are mutually fixed due to the fact that the teeth on the clamping rod and the clamping teeth are mutually fixed in the die is solved.

Through being provided with fixed subassembly, consequently after first latch and second latch block, the atmospheric pressure at this moment will be carried to the adapter sleeve through the seal tube in, and then make the internal atmospheric pressure of adapter sleeve increase, consequently will drive movable piece and remove, consequently make the squeeze lever drive slipmat remove, consequently extrude the fixed plate, consequently extrude the sliding plate, because first latch and second latch block this moment, it is fixed to make the sliding plate through the extruded effect to the sliding plate, avoid the sliding plate to slide and influence the mode locking.

Through being provided with head rod and second connecting rod, consequently when the mode locking, through starting a set of band-type brake hydro-cylinder, the effect of rethread first connecting block, second connecting block and third connecting block and head rod and second connecting rod just can drive four group mode locking cylinders and rotate in step, and then improve efficiency, and avoided multiunit band-type brake hydro-cylinder operation to lead to the mode locking piston to rotate out of step the condition appear.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention;

FIG. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is a schematic diagram of a connection structure between a limiting assembly and a fixed assembly and a pull rod according to the present invention;

FIG. 5 is a schematic diagram of a connection structure between a limiting assembly and a fixing assembly according to the present invention;

FIG. 6 is a schematic view of a spacing assembly according to the present invention;

FIG. 7 is a schematic view of the structure of the area A in FIG. 6 according to the present invention;

FIG. 8 is a schematic view of a pressure member according to the present invention;

FIG. 9 is a schematic view of a fastening assembly according to the present invention;

FIG. 10 is a schematic view of the structure of the area B in FIG. 9 according to the present invention;

FIG. 11 is a schematic view of the structure of the region C in FIG. 9 according to the present invention;

fig. 12 is a schematic view of a rotor structure according to the present invention.

In the figure: 1-a body; 2-head plate; 3-moving templates; 4-a mould shifting oil cylinder; 5-a pull rod; 6-a first latch; 7-a mode locking oil cylinder; 8-locking a mold piston; 9-a limiting assembly; 10-a sliding plate; 11-a second latch; 12-a fixed assembly; 13-a fixed plate; 14-a non-slip mat; 15-extrusion rod; 16-sleeve; 17-a movable block; 18-pushing rod; 19-a slider; 20-sliding grooves; 21-an air intake; 22-an annular tube; 23-sealing rings; 24-pressure member; 25-an air inlet pipe; 26-a first connector; 27-connecting pipes; 28-a second connector; 29-connecting sleeve; 30-a movable piece; 31-communicating pipe; 32-gas delivery pipe; 33-sealing the tube; 34-a seal; 35-pressure tube; 36-piston sheet; 37-through holes; 38-an exhaust pipe; 39-pushing member; 40-thread sleeve; 41-a threaded rod; 42-rotating member; 43-fixing frame; 44-band-type brake cylinder; 45-a first connection block; 46-a first connecting rod; 47-a second connection block; 48-a third connection block; 49-a second connecting rod; 50-driving piece; 51-a first bevel gear; 52-a second bevel gear; 53-fixing sheets; 54-vent holes; 55-fixing columns; 56-sealing sheets; 57-a fixing ring; 58-spring.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-12, the present invention provides a technical solution: the utility model provides a two board injection molding machine mode locking structures with anti-sticking dead function, includes body 1, fixedly connected with head board 2 on the body 1, just fixedly connected with movable mould board 3 on the body 1, fixedly connected with move mould jar 4 on the head board 2, move mould jar 4 flexible end with movable mould board 3 fixed connection, just fixedly connected with on the head board 2 with movable mould board 3 swing joint's pull rod 5, be provided with a plurality of groups of first latches 6 on the pull rod 5, just fixedly connected with four groups of mode locking hydro-cylinders 7 on the movable mould board 3, fixedly connected with cover is located in the mode locking hydro-cylinder 7 the mode locking piston 8 in the outside of pull rod 5; the die locking device further comprises a limiting assembly 9, wherein the limiting assembly 9 is used for limiting the pull rod 5, the limiting assembly 9 is arranged in the die locking piston 8, the limiting assembly 9 comprises a plurality of groups of sliding plates 10 which are in sliding connection with the die locking piston 8, a plurality of groups of second clamping teeth 11 which are meshed with the first clamping teeth 6 are arranged at the bottom end of the sliding plates 10, the cross sections of the first clamping teeth 6 and the second clamping teeth 11 are triangular, and the limiting assembly 9 limits the pull rod 5 through the meshing action of the first clamping teeth 6 and the second clamping teeth 11 so as to complete die locking operation; the limiting assembly 9 comprises a plurality of groups of sleeves 16 arranged in the mold locking piston 8, a movable block 17 is connected in a sliding manner in the sleeves 16, one end of the movable block 17 is fixedly connected with a push rod 18, one end of the push rod 18 is fixedly connected with a sliding block 19 which is connected with the sliding plate 10 in a sliding manner, a sliding groove 20 matched with the sliding block 19 is formed in the sliding plate 10, and an air inlet piece 21 is communicated with the top end of the sleeve 16; the air inlet piece 21 comprises an annular pipe 22 sleeved on the outer surface of the mold locking piston 8, one side of the annular pipe 22 is rotatably connected with a sealing ring 23 sleeved on the outer surface of the mold locking piston 8, a plurality of groups of air inlet pipes 25 are communicated with the sealing ring 23, the annular pipe 22 is communicated with a pressure piece 24 installed in the movable mold plate 3, one end of the air inlet pipe 25 is communicated with a first connecting joint 26, the first connecting joint 26 is communicated with a connecting pipe 27, and one end of the connecting pipe 27 is communicated with a second connecting joint 28 communicated with the other group of sleeves 16; the fixing assembly 12 is used for fixing the sliding plate 10, the fixing assembly 12 is installed in the mold locking piston 8 and is connected with the limiting assembly 9, the fixing assembly 12 comprises a fixing plate 13 fixedly connected with the sliding plate 10, the fixing plate 13 is slidably connected with the mold locking piston 8, two groups of anti-slip pads 14 are installed on one side of the fixing plate 13, one end of each anti-slip pad 14 is fixedly connected with an extrusion rod 15, and the fixing assembly 12 is matched with the limiting assembly 9, after limiting the pull rod 5, the fixing plate 13 is extruded through the extrusion rod 15 and the anti-slip pads 14 so as to extrude the sliding plate 10, so that the sliding plate 10 cannot slide after being extruded; the fixing assembly 12 comprises a plurality of groups of connecting sleeves 29, a plurality of groups of connecting sleeves 29 are respectively sleeved on the outer surfaces of a plurality of groups of extrusion rods 15, movable sheets 30 fixedly connected with the extrusion rods 15 are connected in a sliding manner in the connecting sleeves 29, communicating pipes 31 are communicated with the top ends of the connecting sleeves 29, gas transmission pipes 32 are communicated with the communicating pipes 31, sealing pipes 33 communicated with the gas inlet pipes 25 are communicated with the top ends of the gas transmission pipes 32, and sealing pieces 34 for controlling the opening and closing of the sealing pipes 33 are arranged in the sealing pipes 33; the sealing element 34 comprises a fixing plate 53 fixed in the sealing tube 33, a plurality of groups of vent holes 54 are formed in the fixing plate 53, a fixing column 55 is fixedly connected to the fixing plate 53, a sealing plate 56 is slidably connected to the top end of the fixing column 55, a fixing ring 57 fixedly connected with the sealing tube 33 is movably connected to the outer surface of the sealing plate 56, and a spring 58 sleeved on the outer surface of the fixing column 55 is fixedly connected between the sealing plate 56 and the fixing plate 53.

The pressure piece 24 comprises a pressure pipe 35 fixed in the movable mould plate 3, a piston piece 36 is connected in the pressure pipe 35 in a sliding way, a plurality of groups of through holes 37 are formed in the top end of the pressure pipe 35, the other end of the pressure pipe 35 is communicated with an exhaust pipe 38 communicated with the annular pipe 22, and a pushing piece 39 for pushing the piston piece 36 to move is connected to the piston piece 36; the pushing member 39 includes a threaded sleeve 40 fixedly connected with the piston plate 36, the threaded sleeve 40 is slidably connected with the pressure tube 35, a threaded rod 41 rotatably connected with the movable mold plate 3 is screwed in the threaded sleeve 40, and a rotating member 42 for driving the threaded rod 41 to rotate is connected to the top end of the threaded rod 41.

The rotating piece 42 comprises a fixed frame 43 fixedly connected with the movable mold plate 3, a band-type brake cylinder 44 is fixedly connected to the fixed frame 43, a first connecting block 45 rotationally connected with the mold locking piston 8 is rotationally connected to the output end of the band-type brake cylinder 44, a first connecting rod 46 is rotationally connected to the first connecting block 45, a second connecting block 47 rotationally connected with the other group of mold locking pistons 8 is rotationally connected to one end of the first connecting rod 46, a third connecting block 48 is rotationally connected to the four groups of mold locking pistons 8, a second connecting rod 49 is rotationally connected between the two groups of third connecting blocks 48 in the horizontal direction, and a transmission piece 50 for driving the threaded rod 41 to rotate is connected to the mold locking pistons 8; the transmission member 50 comprises a first bevel gear 51 fixedly connected with the mold locking piston 8, a second bevel gear 52 fixedly connected with the threaded rod 41 is meshed with the outer side of the first bevel gear 51, and the diameter of the first bevel gear 51 is larger than that of the second bevel gear 52.

In the process of clamping the mold, the first connecting block 45 is pushed by the starting of the band-type brake cylinder 44, so that the mold clamping piston 8 connected with the first connecting block 45 is rotated by the action of the first connecting block 45, the mold clamping piston 8 connected with the second connecting block 47 is rotated by the action of the first connecting rod 46 and the second connecting block 47, at the moment, the other two groups of mold clamping pistons 8 are rotated by the action of the two groups of second connecting rods 49, so that the four groups of mold clamping pistons 8 synchronously rotate by the action of the first connecting rod 46 and the second connecting rod 49 when the band-type brake cylinder 44 is started, the first bevel gear 51 is driven to rotate when the mold clamping piston 8 rotates, so that the second bevel gear 52 is driven to rotate, the threaded rod 41 is driven to rotate by the rotation of the second bevel gear 52, the threaded sleeve 40 connected with the pressure pipe 35 in a sliding manner is driven to move by the rotation of the threaded rod 41, the piston sheet 36 is driven to move in the moving process of the threaded sleeve 40, so that the air pressure in the pressure pipe 35 is extruded into the exhaust pipe 38, then the air pressure is conveyed into the annular pipe 22 under the action of the exhaust pipe 38, so that the air pressure is discharged through the four groups of air inlet pipes 25, after the air pressure enters the air inlet pipes 25, the air pressure is communicated with the sealing pipe 33 provided with the sealing piece 34, and then the air pressure can not be discharged through the sealing pipe 33 under the action of the sealing piece 34, and then the air pressure firstly enters the sleeve 16 under the action of the first connecting head 26, the second connecting head 28 and the connecting pipe 27, so that the air pressure in the sleeve 16 is increased, the movable block 17 in the sleeve 16 is driven to move under the action of the air pressure, the push rod 18 is driven to move, the sliding plate 10 is driven to move, and the second clamping tooth 11 is gradually close to the first clamping tooth 6 until the second clamping tooth is clamped with the first clamping tooth, when the mold locking piston 8 rotates, the sliding plate 10 and the second latch 11 are driven to rotate, and then the sliding plate 10 gradually descends in the rotating process to enable the second latch 11 to be gradually clamped with the first latch 6, and when the first latch 6 and the second latch 11 are not clamped and contacted, the end parts of the first latch 6 and the second latch 11 are contacted and clamped to avoid the phenomenon of clamping on the side edges, when the end parts are clamped and collided, the section of the first latch 6 and the second latch 11 is triangular, and therefore the second latch 11 automatically drives the sliding plate 10 to deviate in the collision process, the first latch 6 and the second latch 11 are stably clamped, the pull rod 5 is limited, and after the first latch 6 and the second latch 11 are clamped, the mold locking piston 8 is not completely rotated to the tail end position at the moment, at this time, the continuous rotation of the mold locking piston 8 will drive the first bevel gear 51 to rotate continuously, so that the second bevel gear 52 rotates, so that the threaded rod 41 drives the threaded sleeve 40 to move continuously, so that the piston sheet 36 moves continuously, after the air pressure in the pressure tube 35 is conveyed into the annular tube 22 through the exhaust tube 38 and enters the air inlet tube 25, the sliding plate 10 and the push rod 18 cannot move continuously because the first clamping teeth 6 and the second clamping teeth 11 are clamped, so that the air pressure in the sleeve 16 is no longer received, at this time, the air pressure in the air inlet tube 25 enters the sealing tube 33 completely, so that the sealing sheet 56 is extruded to move, so that the sealing tube 33 and the air tube 32 communicate with each other 31, so that the air pressure enters the air tube 32, finally, the air pressure in the connecting tube 29 through the communicating tube 31 increases, so that the moving sheet drives the piston 30 to move through the air pressure, so that the extruding rod 15 moves, therefore, the anti-slip pad 14 moves to contact with the fixed plate 13 to squeeze the fixed plate 13, so as to squeeze the sliding plate 10, and at this time, the first latch 6 and the second latch 11 are already engaged, so that the sliding plate 10 is fixed through the squeezing action, so as to limit and fix the pull rod 5, thereby completing the mold locking action. Specifically, in the initial state, the air pressure in the air inlet pipe 25 will first enter the sleeve 16, and then the air pressure in the sealing pipe 33 is insufficient to press the sealing piece 56 to move, so that the sealing pipe 33 keeps a sealing state during the moving process of the sliding plate 10, after the air pressure is no longer received in the sleeve 16, the air pressure at this time completely enters the sealing pipe 33, and then the air pressure in the sealing pipe 33 increases to press the sealing piece 56 to move, so that the sealing pipe 33 is communicated with the air delivery pipe 32 to deliver air.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are 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 may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. Two board injection molding machine mode locking structures with anti-sticking dead function, its characterized in that includes:

the die locking device comprises a body (1), wherein a head plate (2) is fixedly connected to the body (1), a movable die plate (3) is slidably connected to the body (1), a die shifting cylinder (4) is fixedly connected to the head plate (2), the telescopic end of the die shifting cylinder (4) is fixedly connected with the movable die plate (3), a pull rod (5) movably connected with the movable die plate (3) is fixedly connected to the head plate (2), a plurality of groups of first clamping teeth (6) are arranged on the pull rod (5), four groups of die locking cylinders (7) are fixedly connected to the movable die plate (3), and a die locking piston (8) sleeved on the outer side of the pull rod (5) is fixedly connected to the die locking cylinders (7);

further comprises:

the limiting assembly (9) is used for limiting the pull rod (5), the limiting assembly (9) is installed in the mold locking piston (8), the limiting assembly (9) comprises a plurality of groups of sliding plates (10) which are in sliding connection with the mold locking piston (8), a plurality of groups of second clamping teeth (11) which are meshed with the first clamping teeth (6) are arranged at the bottom end of the sliding plates (10), the cross sections of the first clamping teeth (6) and the second clamping teeth (11) are triangular, and the limiting assembly (9) limits the pull rod (5) through the meshing action of the first clamping teeth (6) and the second clamping teeth (11) so as to complete mold locking operation;

fixed subassembly (12), be used for right fixed subassembly (12) of sliding plate (10) install in clamping piston (8) and with spacing subassembly (9) are connected, fixed subassembly (12) include with fixed plate (13) of sliding plate (10) fixed connection, fixed plate (13) with clamping piston (8) sliding connection, just two sets of slipmats (14) are installed to one side of fixed plate (13), one end fixedly connected with extrusion pole (15) of slipmat (14), fixed subassembly (12) through with the cooperation of spacing subassembly (9), right after carrying out spacing pull rod (5) pass through extrusion pole (15) with slipmat (14) right fixed plate (13) are extruded and are then right sliding plate (10) are extruded, make sliding plate (10) receive fixed unable slip after the extrusion.

2. The two-plate injection molding machine mold locking structure with anti-locking function according to claim 1, wherein: limiting component (9) including the multiunit install in sleeve pipe (16) in mode locking piston (8), sliding connection has movable block (17) in sleeve pipe (16), the one end fixedly connected with push rod (18) of movable block (17), the one end fixedly connected with of push rod (18) with slider (19) of sliding connection of sliding plate (10), offer on sliding plate (10) with spout (20) of slider (19) looks adaptation, just the top intercommunication of sleeve pipe (16) has inlet piece (21).

3. The two-plate injection molding machine mold locking structure with anti-locking function according to claim 2, wherein: the utility model provides a die locking device, including die locking piston (8), air inlet piece (21) are including the cover locating annular pipe (22) of die locking piston (8) surface, one side rotation of annular pipe (22) is connected with the cover and locates sealing ring (23) of die locking piston (8) surface, the intercommunication has multiunit intake pipe (25) on sealing ring (23), just communicate on annular pipe (22) have install in pressure piece (24) in movable mould board (3), the one end intercommunication of intake pipe (25) has first connector (26), the intercommunication has connecting pipe (27) on first connector (26), the one end intercommunication of connecting pipe (27) have with another group second connector (28) of sleeve pipe (16) intercommunication.

4. The two-plate injection molding machine mold locking structure with anti-locking function according to claim 3, wherein: the fixed subassembly (12) includes multiunit adapter sleeve (29), multiunit adapter sleeve (29) overlap respectively and locate multiunit the surface of extrusion pole (15), just sliding connection has in adapter sleeve (29) with movable piece (30) of extrusion pole (15) fixed connection, just the top intercommunication of adapter sleeve (29) has communicating pipe (31), the intercommunication has gas-supply pipe (32) on communicating pipe (31), the top intercommunication of gas-supply pipe (32) have with sealed pipe (33) of intake pipe (25) intercommunication, install in sealed pipe (33) be used for controlling sealed pipe (33) sealing member (34) that open and shut.

5. The two-plate injection molding machine mold locking structure with anti-locking function according to claim 4, wherein: the pressure piece (24) is fixed in including being fixed in pressure pipe (35) in movable mould board (3), interior sliding connection of pressure pipe (35) has piston piece (36), just a plurality of groups of through-holes (37) have been seted up on the top of pressure pipe (35), the other end intercommunication of pressure pipe (35) have with blast pipe (38) of annular pipe (22) intercommunication, just be connected with on piston piece (36) be used for promoting on piston piece (36) promotion piece (39) removal.

6. The two-plate injection molding machine mold locking structure with anti-locking function according to claim 5, wherein: the pushing piece (39) comprises a threaded sleeve (40) fixedly connected with the piston piece (36), the threaded sleeve (40) is in sliding connection with the pressure pipe (35), a threaded rod (41) in rotary connection with the movable die plate (3) is connected with the threaded sleeve (40) in an internal thread manner, and a rotating piece (42) used for driving the threaded rod (41) to rotate is connected to the top end of the threaded rod (41).

7. The two-plate injection molding machine mold locking structure with anti-locking function according to claim 6, wherein: the rotary part (42) comprises a fixed frame (43) fixedly connected with the movable mould plate (3), a band-type brake oil cylinder (44) is fixedly connected to the fixed frame (43), a first connecting block (45) rotationally connected with the mould locking piston (8) is rotationally connected to the output end of the band-type brake oil cylinder (44), a first connecting rod (46) is rotationally connected to the first connecting block (45), a second connecting block (47) rotationally connected with the mould locking piston (8) in the other group is rotationally connected to one end of the first connecting rod (46), a third connecting block (48) is rotationally connected to the mould locking piston (8) in the four groups, a second connecting rod (49) is rotationally connected between the third connecting blocks (48) in the horizontal direction, and a transmission part (50) for driving the threaded rod (41) to rotate is connected to the mould locking piston (8).

8. The two-plate injection molding machine mold locking structure with anti-locking function according to claim 7, wherein: the transmission part (50) comprises a first bevel gear (51) fixedly connected with the mode locking piston (8), a second bevel gear (52) fixedly connected with the threaded rod (41) is meshed with the outer side of the first bevel gear (51), and the diameter of the first bevel gear (51) is larger than that of the second bevel gear (52).

9. The two-plate injection molding machine mold locking structure with anti-locking function according to claim 8, wherein: the sealing element (34) comprises a fixing piece (53) fixed in the sealing tube (33), a plurality of groups of vent holes (54) are formed in the fixing piece (53), a fixing column (55) is fixedly connected to the fixing piece (53), a sealing piece (56) is slidably connected to the top end of the fixing column (55), a fixing ring (57) fixedly connected with the sealing tube (33) is movably connected to the outer surface of the sealing piece (56), and a spring (58) sleeved on the outer surface of the fixing column (55) is fixedly connected between the sealing piece (56) and the fixing piece (53).

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