CN118082115A - Automatic injection moulding equipment of way awl - Google Patents

Abstract

The invention relates to automatic road cone injection molding equipment which comprises an injection molding machine and a road cone molding die arranged on the injection molding machine, wherein the road cone molding die comprises an upper die body and a lower die body, the upper die body comprises an upper fixed plate and a fixed die plate, the lower die body comprises a lower fixed plate and a movable die plate, a sliding groove is formed in one surface of the fixed die plate, which faces the movable die plate, a top plate in the shape of a Chinese character 'hui', which is used for molding a base, is further arranged in the sliding groove, a first driving part which is used for driving the top plate to move towards one side of the movable die plate is further arranged on the fixed die plate, two cutting blocks are arranged on one surface of the fixed die plate, which faces the movable die plate, and the two cutting blocks are respectively positioned above two injection molding runners. The invention has the effect of automatically cutting off the glue port when the road cone is demolded.

Description

Automatic injection moulding equipment of way awl

Technical Field

The invention relates to the field of road cone production devices, in particular to automatic road cone injection molding equipment.

Background

A plastic road cone is shown in fig. 13 and includes a cone 91 and a base 92. This way awl is installed the mould on injection molding machine 1at first during production, then thereby accomplish the automatic production of moulding plastics of way awl through the die opening and closing that uses injection molding machine 1 to control the mould and plastics, but all can form the gum mouth in the runner of moulding plastics of mould after the production is moulded plastics to the way awl at every turn, the gum mouth can be connected with base 92, the gum mouth also can follow the way awl and draw together the drawing of patterns when the drawing of patterns of way awl, still need special arrangement personnel to prune down the gum mouth from the way awl after the existence way awl production of gum mouth, therefore the personnel cost in the production of way awl can be promoted to a certain extent to the existence of gum mouth and the total production efficiency of way awl is reduced.

Disclosure of Invention

The application provides automatic injection molding equipment for a road cone, which is provided with the automatic injection molding of the road cone.

The application provides automatic injection molding equipment for road cones, which adopts the following technical scheme:

The utility model provides an automatic injection moulding equipment of way awl, includes the injection molding machine and locates the way awl forming die on the injection molding machine, way awl forming die includes upper die body and lower die body, the upper die body includes fixed plate, lower die body includes fixed plate and movable mould board down, two through-holes have been seted up on the fixed plate, two injection runners that are used for supplying heat to melt the plastics circulation have been seted up on the one side of fixed plate towards the movable mould board, two one ends of injection runners are linked together, be equipped with two toper inserts that are used for the shaping way awl on the fixed plate, two toper inserts pass two through-holes respectively and stretch out the fixed mould board, two accommodation holes that are used for producing the way awl with toper insert cooperation are seted up on the movable mould board, the fixed mould board has been seted up the groove that slides towards one side of movable mould board, the groove that slides is the shape, two one end that the injection runners kept away from each other all communicates the groove, two through-holes all set up on the diapire of groove that slides, first mounting hole has been seted up on the diapire of groove, two guide post that slide, two in the side of cut die guide post are equipped with in the first mounting hole, two cut die blocks are equipped with in the bottom wall that the side of movable mould board and drive the top board, two side of cut die plate, two bottom wall that the bottom plate is used for the moulding side of a plurality of moving die, top plate and one side of cut top plate and one side are located in the top plate respectively, and the top plate that the bottom surface of cut, and one side of cut down die is used for the bottom surface is located in the bottom, and a forming cavity for forming two road cones is formed between the two conical inserts and the top plate.

Through adopting above-mentioned technical scheme, product injection moulding and mould die sinking back, first drive division can drive roof towards movable mould board one side motion and drive two way awls towards movable mould board one side motion, and two way awl motion in-process, two cutting blocks can restrict the removal of gluing the mouth and cut the junction of gluing mouth and two way awls, thereby accomplish the automatic pruning of gluing mouth with the separation of two way awls at the in-process of way awl drawing of patterns for can directly pack the delivery after the way awl production.

Preferably, a plurality of second mounting holes are formed in the bottom wall of the sliding groove, a plurality of first mounting holes are formed in the plurality of second mounting holes respectively, the first driving part is a plurality of first springs arranged in the plurality of second mounting holes, the plurality of first springs are respectively sleeved on the plurality of guide posts, one ends of the plurality of first springs are propped against the bottom wall of the top plate, the other ends of the plurality of first springs are propped against the bottom wall of the corresponding second mounting holes, the plurality of springs are in a compressed state when the die is closed, and the plurality of springs push the two top plates to move towards one side of the movable die plate when the die is opened, so that the distance from the top surface of the top plate to the movable die plate is finally smaller than the distance from the two bottom surfaces of the cut pieces to the movable die plate.

Through adopting above-mentioned technical scheme, when the mould die sinking, the die body can be kept away from to the lower die body under the control of injection molding machine, and the in-process movable mould board that the die body was kept away from to the die body no longer supports the roof down, and this is a plurality of first springs of cover on a plurality of guide posts can rebound and reset and promote the roof towards movable mould board one side motion, can promote two way awls towards movable mould board one side motion when two roof motions to help two way awl drawing of patterns.

Preferably, the bottoms of the two first cut blocks are provided with first inclined planes, and the distance between the two first inclined planes is gradually reduced from one end close to the fixed die plate to one end far away from the fixed die plate.

Through adopting above-mentioned technical scheme, the seting up of two first inclined planes can promote two slabbing and to the cutting effect of gluing mouth and way awl for the interface of way awl and gluey mouthful junction is neat.

Preferably, the first sliding holes are formed in the bottom wall of the injection molding runner along the mold opening direction of the mold, the ejector pins are connected in the first sliding holes in a sliding manner, and the fixed mold plate is further provided with two control assemblies for respectively controlling the movement of the two ejector pins.

Through adopting above-mentioned technical scheme, two way awls and jiao kou are cut the back by two cutting pieces, and two control assembly control two thimble slips out two first slide holes for two sill bars are ejecting the runner of moulding plastics to the jiao kou that is located two runners of moulding plastics, make the jiao kou drop out the mould, prevent that the jiao kou from influencing the production of next group way awl.

Preferably, the control assembly comprises a second spring, a limiting block and a pull-pushing rod which are arranged in the first sliding hole, one end of the second spring is propped against the bottom wall of the thimble, the other end of the second spring is propped against the bottom wall of the first sliding hole, the two second springs are always in a compressed state, the two thimbles are respectively provided with a first sliding groove for the limiting block to penetrate through, the inner side wall of the sliding groove is provided with two second sliding grooves which are respectively communicated with the two first sliding holes, the inner side wall of the top plate is provided with two third sliding grooves, the pull-pushing rod is arranged in the third sliding grooves, the two third sliding grooves are respectively communicated with the two second sliding grooves, one end of the limiting block is glidingly connected in the first sliding grooves and the second sliding grooves, the other end of the limiting block is glidingly connected in the third sliding grooves, the two limiting blocks are respectively provided with second inclined surfaces at the end parts of the first sliding grooves, the distance from the second inclined plane to the bottom wall of the corresponding second chute is gradually increased from top to bottom, the bottom surfaces of the two first chutes are respectively provided with a third inclined plane, the inclined angles of the two third inclined planes are respectively the same as those of the second inclined planes on the same side, the two limiting blocks are respectively provided with two inclined penetrating grooves, the distance from the penetrating grooves to the bottom wall of the corresponding third chute is gradually increased from top to bottom, the two supporting pull rods are respectively positioned in the two penetrating grooves, in the die closing state, the two supporting pull rods are respectively positioned on one sides of the two penetrating grooves away from each other, one ends of the two limiting blocks away from the third chute are respectively abutted against the bottom walls of the two second chutes, the distance between the bottom ends of the two first inclined planes and adjacent thimbles is larger than the distance from the top surface of the top plate to the bottom end of the cut block, in the die opening state, the two first inclined planes are respectively attached to the two second inclined planes, the top ends of the two ejector pins respectively extend out of the two injection molding flow passages, and the distance from the two ejector pins to the movable mould plate is greater than the distance from the top plate to the movable mould plate.

Through adopting above-mentioned technical scheme, the roof can be towards moving die plate one side when the promotion of a plurality of first springs during the mould die sinking, the roof can drive two pull rods and move together, can drive two stoppers through two through grooves and slide and get into in the corresponding third spout when two pull rods move, when the top surface of roof moves to being higher than the bottom of two cutting pieces, the second inclined plane of two stoppers moves to and contacts with two third inclined planes, along with the continued motion of two roof, two stoppers can continue to slide and get into the third spout, two second inclined planes can continue to move towards third spout direction, thereby two second springs can rebound and reset at the in-process of two second inclined plane movements promote two thimble and move out two first slide holes, thereby the gluey mouth ejecting runner of moulding plastics that will be located two runner, thereby accomplish the automatic drawing of patterns of gluey mouth. When the die is assembled, the movable die plate can firstly collide with the top plate and push the top plate to retract and reset, the first springs are stressed and compressed and deformed in the resetting process of the top plate and retract into the second mounting holes again, the two pressing rods can press the two limiting blocks to enable the two limiting blocks to move away from the third sliding groove in the process of returning the two top plates to the avoidance groove, the two third inclined surfaces can be pressed through the two second inclined surfaces in the process of moving the two limiting blocks away from the third sliding groove, so that the two ejector pins retract and reset into the first sliding holes and drive the two second springs to compress, and preparation is made for demolding of the next glue port.

Preferably, the top plate is provided with mounting inserts, two third sliding grooves are formed in the mounting inserts, the two third sliding grooves penetrate through the two mounting inserts, and the two supporting pull rods are located on the mounting inserts.

Through adopting above-mentioned technical scheme, make things convenient for the stopper and support the installation dismantlement of depression bar.

Preferably, two avoidance holes for two conical inserts to pass through are formed in the top plate along the die opening direction of the die, two avoidance grooves are formed in the opposite two outer side walls of the sliding groove along the die opening direction perpendicular to the die, air passages are formed in the top plate, a plurality of air outlets of the air passages are respectively located on the wall of the two avoidance holes, and a plurality of air inlets of the air passages are just opposite to the avoidance grooves.

Through adopting above-mentioned technical scheme, when the roof is ejecting, the gas outlet no longer laminates the outer wall of toper mold insert, and the opportunity of moulding plastics controls the air pump and inflates in the air inlet in the air flue this moment, and gas will blow into between two centrum and the two installation inserts along the air flue from a plurality of gas blowing openings to make two way cones and two installation insert separation, reach the effect of supplementary drawing of patterns, take off from the installation insert after making things convenient for way cone shaping. The avoidance groove is arranged so as to facilitate the connection of the air pipe and the air inlet of the air passage.

Preferably, the air outlets are circumferentially and equidistantly arranged on the hole walls of the two avoidance holes.

By adopting the technical scheme, the effect of the gas separation road cone and the mounting insert is improved.

Preferably, the air outlets of the air passage are all arranged obliquely upwards.

By adopting the technical scheme, the air outlet direction of the air is guided, and the auxiliary demoulding effect of the air on the road cone is improved.

The technical effects of the invention are mainly as follows:

1. According to the invention, the glue port is automatically cut off when the road cone is demolded by matching the top plate with the two cut blocks;

2. according to the invention, the two ejector pins are driven to move by utilizing the movement of the top plate, so that the injection runner can be ejected out of the two ejector pins after the glue port is cut off;

3. The invention assists the demolding of the two road cones by arranging the air passage.

Drawings

Fig. 1 is a schematic structural view of the mold in an open state after a pair of road cones is produced in this embodiment. .

Fig. 2 is a schematic view of the mold in fig. 1 in a closed state.

Fig. 3 is a schematic view of the lower mold body in fig. 2.

Fig. 4 is a schematic view of the stationary platen and a first spring of fig. 3.

Fig. 5 is a schematic view of the structure of the top plate in fig. 3.

Fig. 6 is a cross-sectional view of the top plate of fig. 5 taken along line A-A.

Fig. 7 is a schematic view of the structure of the cut block in fig. 3.

Fig. 8 is a schematic structural view of the mounting insert and two abutment bars, two stopper blocks and two ejector pins of fig. 3.

Fig. 9 is a cross-sectional view of the lower die body of fig. 3 taken along line B-B.

Fig. 10 is a partial enlarged view at C in fig. 9.

FIG. 11 is a schematic view of the lower mold body of the mold of FIG. 1 in an open state.

FIG. 12 is a partial cross-sectional view of a portion of the control assembly of the lower die body of FIG. 10 taken along line D-D.

Fig. 13 is a schematic view of the structure of the road cone in this embodiment.

Reference numerals: 1. an injection molding machine; 2. a top plate, a 21 and an avoidance hole; 22. an airway; 3. road cone forming die; 4. an upper die body; 41. an upper fixing plate; 42. a stationary mold plate; 421. a through hole; 422. injection molding a runner; 423. a slip groove; 424. a first mounting hole; 425. a second mounting hole; 426. a first slide hole; 427. a second chute; 428. an avoidance groove; 5. a lower die body; 51. a lower fixing plate; 52. a movable template; 521. a receiving hole; 61. a guide post; 62. a conical insert; 63. cutting into blocks; 631. a first inclined surface; 64. a first driving section; 641. a first spring; 65. a thimble; 651. a first chute; 652. a third inclined surface; 7. a control assembly; 71. a second spring; 72. a limiting block; 721. a second inclined surface; 722. a through groove; 73. a pull rod; 8. mounting an insert; 81. a third chute; 91. a vertebral body; 92. and (5) a base.

Detailed Description

The present application will be further described in detail below with reference to the accompanying drawings, so that the technical solution of the present application can be more easily understood and grasped.

Referring to fig. 1 to 4, an automatic injection molding apparatus for road cone of the present embodiment includes an injection molding machine 1 and a road cone molding die 3 mounted on the injection molding machine 1, wherein the die opening direction of the die is the X-axis direction. The road cone forming mold 3 comprises an upper mold body 4 and a lower mold body 5, wherein the upper mold body 4 comprises an upper fixing plate 41 and a fixed mold plate 42 fixed on the upper fixing plate 41, and the lower mold body 5 comprises a lower fixing plate 51 and a movable mold plate 52 fixed on the lower fixing plate 51. The surface of the fixed die plate 42 facing the movable die plate 52 is provided with a sliding groove 423 along the X-axis direction, the sliding groove 423 is in a shape like a Chinese character 'hui', the surface of the fixed die plate 42 facing the movable die plate 52 is also provided with two injection molding flow passages 422 for supplying heat and melting plastics to circulate along the Y-axis direction, one ends of the two injection molding flow passages 422 close to each other are communicated, and one ends of the two injection molding flow passages 422 far away from each other are respectively communicated with the sliding groove 423. Four second mounting holes 425 and two through holes 421 are formed in the bottom wall of the sliding groove 423 along the X-axis direction, the four mounting holes are respectively formed in four corners of the sliding groove 423, the bottom wall of the four second mounting holes 425 is provided with first mounting holes 424 along the X-axis direction, and guide posts 61 are fixedly connected in the first mounting holes 424.

Referring to fig. 2-6, a top plate 2 in the shape of a Chinese character 'hui' for forming the base 92 is further provided in the sliding groove 423, and the top plate 2 is slidingly connected to the plurality of guide posts 61 along the mold opening direction of the mold. Two avoidance holes 21 are formed in the top plate 2 along the X-axis direction, and the two avoidance holes 21 are respectively communicated with the two through holes 421. The diameter of each of the two escape holes 21 gradually increases from the side closer to the movable die plate 52 to the side farther from the movable die plate 52. Two conical inserts 62 for forming the road cone are fixedly connected to the fixed plate, and the two conical inserts 62 respectively penetrate through the two through holes 421 and the two avoidance holes 21 and extend out of the movable template 52. The movable die plate 52 is provided with two receiving holes 521 for producing the road cone in cooperation with the tapered insert 62.

Referring to fig. 2-4, two avoidance grooves 428 are formed in opposite outer side walls of the sliding groove 423 along a mold opening direction perpendicular to the mold, an air passage 22 is formed in the top plate 2, a plurality of air outlets of the air passage 22 are respectively located on the hole walls of the two avoidance holes 21 and incline upwards, the air outlets of the air passages 22 on each avoidance hole 21 are uniformly distributed in circumferential equidistant mode, and four air inlets of the air passage 22 are arranged opposite to the avoidance grooves 428 in pairs. The machined holes created by drilling the air passages 22 are plugged with copper plugs.

Referring to fig. 2, 3 and 7, two cut pieces 63 are fixedly connected to a surface of the fixed mold plate 42 facing the movable mold plate 52, the two cut pieces 63 are respectively located above the two injection molding runners 422, surfaces of the two cut pieces 63, which are far away from each other, are all used for forming the outer surface of the road cone, first inclined surfaces 631 are formed at bottoms of the two first cut pieces 63, and the distance between the two first inclined surfaces 631 is gradually reduced from one end, which is close to the fixed mold plate 42, to one end, which is far away from the fixed mold plate 42.

Referring to fig. 2-4, the fixed die plate 42 is further provided with a first driving portion 64 for driving the top plate 2 to move towards one side of the movable die plate 52, the first driving portion 64 is four first springs 641 installed in a plurality of four second installation holes 425, the four first springs 641 are respectively sleeved on the four guide posts 61, one ends of the four first springs 641 are abutted against the bottom wall of the top plate 2, the other ends of the four first springs 641 are abutted against the bottom wall of the corresponding second installation hole 425, the springs are in a compressed state when the die is closed, and the springs push the two top plates 2 to move towards one side of the movable die plate 52 when the die is opened, so that the distance from the top surface of the top plate 2 to the movable die plate 52 is finally smaller than the distance from the bottom surface of the two cut pieces 63 to the movable die plate 52. Two conical inserts 62 for forming the road cone are fixedly connected to the upper fixing plate 41, two through holes 421 are further formed in the bottom wall of the sliding groove 423 along the X-axis direction, and the two conical inserts 62 respectively penetrate through the two through holes 421 and extend out of the movable template 52.

Referring to fig. 2, 3, 8, 9 and 10, first sliding holes 426 are formed in the bottom walls of the two injection molding runners 422 along the X direction, ejector pins 65 are slidably connected in the two first sliding holes 426 along the X axis direction, and two control assemblies 7 for respectively controlling the movement of the two ejector pins 65 are further arranged on the fixed mold plate 42. The control assembly 7 comprises a second spring 71, a limiting block 72 and a supporting pull rod 73 which are arranged in the first sliding hole 426, one end of the second spring 71 is supported against the bottom wall of the thimble 65, the other end is supported against the bottom wall of the first sliding hole 426, the two second springs 71 are always in a compressed state, and the two thimbles 65 are provided with first sliding grooves 651 for the limiting block 72 to penetrate through. Two second sliding grooves 427 are formed in the inner side wall of the sliding groove 423 along the Y-axis direction, and the two second sliding grooves 427 are respectively communicated with the two first sliding holes 426.

Referring to fig. 2, 3,8, 9 and 10, a mounting insert 8 is fixedly connected to the bottom of the top plate 2 through a bolt, two third sliding grooves 81 are formed in the top surface of the mounting insert 8 along the X-axis direction, the two third sliding grooves 81 are respectively communicated with two second sliding grooves 427, one ends of the limiting blocks 72 are slidingly connected in the first sliding grooves 651 and the second sliding grooves 427, the other ends of the limiting blocks 72 are slidingly connected in the third sliding grooves 81, second inclined surfaces 721 are formed in the end portions of the two limiting blocks 72 located in the first sliding grooves 651, the distance from the second inclined surfaces 721 to the bottom wall of the corresponding second sliding groove 427 is gradually increased from the top end to the bottom end, third inclined surfaces 652 are formed in the bottom surfaces of the two first sliding grooves 651, and the inclination angles of the two third inclined surfaces 652 are respectively identical to those of the second inclined surfaces 721 on the same side. Two inclined through grooves 722 are respectively formed in the two limiting blocks 72, and the distance from the through grooves 722 to the bottom wall of the corresponding third sliding groove 81 gradually increases from top to bottom. The two supporting pull rods 73 are respectively and fixedly connected to the two third sliding grooves 81, and meanwhile, the two supporting pull rods 73 are respectively located in the two through grooves 722.

Referring to fig. 2, 3, 8 and 9-12, in the mold closing state, the two pushing rods 73 are respectively located at one sides of the two through grooves 722 away from each other, one ends of the two limiting blocks 72 away from the third sliding groove 81 respectively collide with bottom walls of the two second sliding grooves 427, a distance from bottom ends of the two second inclined surfaces 721 to adjacent ejector pins 65 is greater than a distance from top surfaces of the top plates 2 to bottom ends of the cut blocks 63, in the mold opening state, the two second inclined surfaces 721 are respectively attached to the two third inclined surfaces 652, top ends of the two ejector pins 65 respectively extend out of the two injection molding flow passages 422, and a distance from the two ejector pins 65 to the movable mold plate 52 is greater than a distance from the top plates 2 to the movable mold plate 52.

The specific production process of the device is as follows:

Firstly, under the control of the injection molding machine 1, the lower die body 5 moves towards the upper die body 4 to enable the die to be clamped, in the die clamping process, the movable die plate 52 firstly collides with the top plate 2 and pushes the top plate 2 to retract and reset, in the retracting and resetting process of the top plate 2, the four first springs 641 are compressed and deformed to retract back into the second mounting holes 425 again, in the returning process of the two top plates 2 to the avoiding groove 428, the two pressing rods can press the two limiting blocks 72 to enable the two limiting blocks 72 to move away from the third sliding groove 81, in the moving process of the two limiting blocks 72 away from the third sliding groove 81, the two third inclined surfaces 652 can be pressed through the two second inclined surfaces 721 to enable the two ejector pins 65 to retract and reset into the two first sliding holes 426 and drive the two second springs 71 to compress. Finally, the two ejector pins 65 can be retracted into the two first sliding holes 426, the top plate 2 can be abutted against the bottom wall of the sliding groove 423, and a forming cavity for forming two road cones is formed among the two containing holes 521, the two conical inserts 62 and the top plate 2.

Then the injection molding machine 1 starts to inject plastic, the plastic flows into the two molding cavities through the two injection molding flow channels 422, then the injection molding machine 1 starts to enter a pressure maintaining process stage, after pressure maintaining is finished, two road cones are molded, and meanwhile, a rubber port is further connected between the two road cones and is positioned in the two injection molding flow channels 422.

Then the injection molding machine 1 controls the lower die body 5 to be far away from the upper die body 4, so that the die is opened, and the movable die plate 52 does not abut against the top plate 2 when the die is opened, so that the four first springs 641 rebound to reset and push the top plate 2 to move towards one side of the movable die plate 52, and the top plate 2 drives two road cones and two abutting rods to move towards one side of the movable die plate 52 together when moving, and in the moving process of the two road cones, the two cutting blocks 63 can limit the movement of the glue opening and cut the joint of the glue opening and the two road cones; when the two pushing rods 73 move, the two limiting blocks 72 are driven to slide into the corresponding third sliding grooves 81 through the two through grooves 722. When the top surface of the top plate 2 moves to be level with the bottom ends of the two cut pieces 63, the second inclined surfaces 721 of the two stopper pieces 72 move to be in contact with the two third inclined surfaces 652, and at the same time, the two cut pieces 63 cut off and separate the glue port and the two road cones.

Under the action of the four first springs 641, the top plate 2 continuously moves together with the two pressing rods, under the lifting action of the two pressing rods, the two limiting blocks 72 continuously slide into the third sliding groove 81, the two second inclined planes 721 continuously move towards the third sliding groove 81, and in the moving process of the two second inclined planes 721, the two second springs 71 rebound and reset to push the two ejector pins 65 to move out of the two first sliding holes 426, so that the glue ports in the two injection molding flow passages 422 are ejected out of the injection molding flow passages 422, and automatic demolding of the glue ports is completed.

When the top plate 2 is ejected, the air outlet is not attached to the outer wall of the conical insert 62 any more, at this time, the injection molding machine 1 can control the air pump to pump air into the air inlet in the air channel 22, and air can be flushed between the two cones 91 and the two mounting inserts 8 along the air channel 22 from a plurality of air blowing ports, so that the two road cones are separated from the two mounting inserts 8, the effect of assisting in demolding is achieved, and the road cones are conveniently taken down from the mounting inserts 8 after being molded. After the two road cones are removed, the injection molding machine 1 can control the mold to be closed again to perform injection molding of a new set of road cones.

Of course, the above is only a typical example of the application, and other embodiments of the application are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the application claimed.

Claims (9)

1. The utility model provides an automatic injection moulding equipment of way awl, includes injection molding machine (1) and locates way awl forming die (3) on injection molding machine (1), way awl forming die (3) include last die body (4) and lower die body (5), go up die body (4) including upper fixed plate (41), fixed die plate (42), lower die body (5) include fixed plate (51) and movable mould board (52) down, two through-holes (421) have been seted up on fixed die plate (42), two injection runner (422) that are used for the circulation of hot melt plastics have been seted up towards one side of movable mould board (52) in fixed die plate (42), two the one end of injection runner (422) is linked together, be equipped with two toper inserts (62) that are used for shaping way awl on upper fixed plate (41), two toper inserts (62) pass two through-holes (421) respectively and stretch out fixed die plate (42), two are offered on movable mould board (52) and are used for producing way awl holding hole (521) with toper insert (62) cooperation, its characterized in that: the utility model discloses a movable mould plate (52) is formed in a fixed mould plate (42), one side of movable mould plate (52) is facing to fixed mould plate (42) is provided with sliding groove (423), two sliding groove (423) are all linked together to one end that runner (422) of moulding plastics kept away from each other, two through hole (421) all are provided with a plurality of first mounting holes (424) on the diapire of sliding groove (423), all be equipped with guide post (61) in a plurality of first mounting holes (424), roof (2) that are used for the back of shaping base (92) still are equipped with in sliding groove (423), roof (2) slide along the die opening direction of mould and connect on a plurality of guide posts (61), still be used for driving roof (2) to move towards first drive portion (64) of movable mould plate (52) one side on fixed mould plate (42), be equipped with two cut pieces (63) on the diapire of runner (52) facing to movable mould plate (42), two cut pieces (63) are located respectively in two runner (422) top, two cut pieces of cut piece (63) are located respectively, two cut pieces of roof (63) are used for holding the same place on the die plate (52) and are kept away from each other, the die opening direction is kept away from the same, the die (52) is pressed down on the die plate (52) when two cut pieces are pressed together, the die plate (52) is pressed together, and the outside is held down by the die plate (52) A molding cavity for molding two road cones is formed between the two conical inserts (62) and the top plate (2).

2. The automatic road cone injection molding device according to claim 1, wherein: a plurality of second mounting holes (425) have been seted up on the diapire of sliding groove (423), a plurality of first mounting hole (424) are seted up respectively in a plurality of second mounting holes (425), first drive portion (64) are for locating a plurality of first springs (641) in a plurality of second mounting holes (425), a plurality of first springs (641) are established on a plurality of guide posts (61) respectively to the cover, a plurality of the one end of first springs (641) all leans against with the diapire of roof (2), the other end all leans against with the diapire of corresponding second mounting hole (425), and when the mould compound die, a plurality of springs all are in compression state, and a plurality of springs promote roof (2) towards movable mould board (52) one side motion when the mould die sinking, finally make roof (2) top surface to movable mould board (52) distance be less than two cutting piece (63) bottom surfaces to movable mould board (52).

3. The automatic road cone injection molding device according to claim 1, wherein: first inclined planes (631) are formed in the bottoms of the two first cutting blocks (63), and the distance between the two first inclined planes (631) is gradually reduced from one end close to the fixed die plate (42) to one end far away from the fixed die plate (42).

4. The automatic road cone injection molding device according to claim 1, wherein: the two injection molding runner (422) bottom walls are provided with first sliding holes (426) along the mold opening direction of the mold, the two first sliding holes (426) are connected with ejector pins (65) in a sliding manner, and the fixed mold plate (42) is also provided with two control assemblies (7) for respectively controlling the movement of the two ejector pins (65).

5. The automatic road cone injection molding device according to claim 4, wherein: the control assembly (7) comprises a second spring (71) arranged in a first sliding hole (426), a limiting block (72) and a supporting pull rod (73), one end of the second spring (71) is supported against the bottom wall of the thimble (65), the other end of the second spring is supported against the bottom wall of the first sliding hole (426), the two second springs (71) are always in a compressed state, the two thimble (65) are respectively provided with a first sliding groove (651) used for the limiting block (72) to penetrate through, the inner side wall of the sliding groove (423) is provided with two second sliding grooves (427), the two second sliding grooves (427) are respectively communicated with the two first sliding holes (426), the inner side wall of the top plate (2) is provided with two third sliding grooves (81), the supporting pull rod (73) is arranged in the third sliding grooves (81), the two third sliding grooves (81) are respectively communicated with the two second sliding grooves (427), one end of the limiting block (72) is connected with the first sliding grooves (651) and the second sliding grooves (427) in the inner side wall of the second sliding grooves (427), the other end of the limiting block (427) is connected with the second sliding grooves (721) in a gradually-increased distance from the bottom end of the second sliding grooves (721) to the top end of the second sliding grooves (721), the bottom surfaces of the two first sliding grooves (651) are respectively provided with a third inclined surface (652), the inclined angles of the two third inclined surfaces (652) are respectively the same as those of the second inclined surfaces (721) on the same side, two inclined penetrating grooves (722) are respectively formed in the two limiting blocks (72), the distance from the top end to the bottom end of the corresponding third sliding groove (81) from the penetrating grooves (722) is gradually increased, the two supporting pull rods (73) are respectively located in the two penetrating grooves (722), in the mold closing state, the two supporting pull rods (73) are respectively located on one sides of the two penetrating grooves (722) which are far away from each other, one ends of the two limiting blocks (72) far away from the third sliding groove (81) are respectively in contact with the bottom walls of the two second sliding grooves (427), the distance between the bottom ends of the two first inclined surfaces (631) and the adjacent ejector pins (65) is larger than the distance from the top surface of the top plate (2) to the bottom end of the cutting block (63), in the mold opening state, the two first inclined surfaces (631) are respectively attached to the two second inclined surfaces (721) are respectively located in the two penetrating grooves (722), and the two moving mold plates (52) are respectively protruded out of the two ejector pins (52) at the distance from the top plate (52).

6. The automatic road cone injection molding device according to claim 5, wherein: the top plate (2) is provided with mounting inserts (8), two third sliding grooves (81) are formed in the mounting inserts (8), the third sliding grooves (81) penetrate through the mounting inserts (8), and the supporting pull rods (73) are located on the mounting inserts (8).

7. The automatic road cone injection molding device according to claim 1, wherein: two avoidance holes (21) for two conical inserts (62) to pass through are formed in the top plate (2) along the die opening direction of the die, two avoidance grooves (428) are formed in the opposite two outer side walls of the sliding groove (423) along the die opening direction perpendicular to the die, air passages (22) are formed in the top plate (2) and a plurality of air outlets of the air passages (22) are respectively located on the wall of the two avoidance holes (21), and a plurality of air inlets of the air passages (22) are opposite to the avoidance grooves (428).

8. The automatic road cone injection molding device according to claim 7, wherein: the air outlets are circumferentially and equidistantly distributed on the hole walls of the two avoidance holes (21).

9. The automatic road cone injection molding device according to claim 8, wherein: and a plurality of air outlets of the air passage (22) are obliquely arranged upwards.