CN115503180A - Automatic injection molding production equipment for plastic products - Google Patents

Abstract

The invention relates to the technical field of plastic injection molding and discloses automatic injection molding production equipment for plastic products. This automatic injection moulding production facility of plastic product, through setting up moving mechanism, when first gear drives first chain meshing and connects, first chain can drive two second gears and rotate, at this moment two second gears drive two-way threaded rod at the square groove internal rotation, two connecting seats move to relative one side on two-way threaded rod, at this moment the connecting seat drives the slider and slides in the spout, the connecting seat drives the supporting shoe, the supporting shoe drives first mould and second mould and carries out fixed combination, make things convenient for the later stage to mould plastics.

Description

Automatic injection molding production equipment for plastic products

Technical Field

The invention relates to the technical field of plastic injection molding, in particular to automatic injection molding production equipment for plastic products.

Background

Plastic products are high molecular compounds, commonly referred to as plastics or resins, made of plastics and polymerized by polyaddition or polycondensation reactions. The composition and the shape and the style can be freely changed. It is composed of synthetic resin, filler, plasticizer, stabilizer, lubricant and pigment.

Automatic injection moulding production facility of plastic product like CN207481064U, including the support frame, mould plastics the case, connect workbin and power box, mould plastics case fixed connection in support frame surface, connect workbin swing joint in support frame inboard, power box fixed connection is in support frame one side, power box top fixedly connected with power supply panel, mould plastics roof portion fixedly connected with condenser, power box one side fixedly connected with air compressor machine, air compressor machine one side turn-on connection has the blast pipe, the blast pipe has the conveying pipe through gas valve turn-on connection, conveying pipe top turn-on connection has the pay-off funnel, it is fixed with the hydraulic stem to mould plastics case one side.

This automatic production facility that moulds plastics of plastic product is carrying out the automatic in-process of moulding plastics, owing to be directly to go on combining together two moulds, still has the gap between two at this moment moulds, and only singly drives through the hydraulic stem between the two simultaneously, can not guarantee the fastness between the two during this period, and when cooling down the product in the mould, there is not the way to make omnidirectional cooling simultaneously.

Disclosure of Invention

The invention aims to provide automatic injection molding production equipment for plastic products, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automatic injection moulding production facility of plastic product, includes bottom plate, first mould and second mould, first mould and the positive equal fixedly connected with feed liquor pipe of second mould, the positive left and right sides equal fixedly connected with backup pad of bottom plate, backup pad quantity is four, the positive fixedly connected with roof of backup pad, the inside fixedly connected with moving mechanism of bottom plate, the positive fixedly connected with reinforcing mechanism of roof, the inside fixedly connected with heat dissipation mechanism of backup pad surface.

The moving mechanism comprises a square groove, the square groove is formed in the bottom plate, the top of the square groove is arranged to be an opening, a first motor is fixedly connected to the right side of the square groove, a first rotating shaft is fixedly connected to the left side of the first motor, a first gear is fixedly connected to the surface of the first rotating shaft, a first chain is connected to the surface of the first gear in a meshed mode, a second gear is connected to the inner portion of the first chain in a meshed mode, a two-way threaded rod is fixedly connected to the axle center of the second gear in a meshed mode, the surface of the two-way threaded rod is rotatably connected with the inside of the square groove, a connecting seat is connected to the left side surface of the two-way threaded rod in a threaded mode, a sliding groove is formed in the bottom of the inner wall of the square groove, a sliding block is fixedly connected to the bottom of the connecting seat, the surface of the sliding block is slidably connected with the inside of the sliding groove, a supporting block is fixedly connected to the top of the connecting seat, and the bottoms of the first mold and the second mold are fixedly connected with the top of the supporting block.

Preferably, the number of the second gears is two, the two second gears are arranged at the top and the bottom of the first gear, and the two second gears can drive the two bidirectional threaded rods to rotate in the same direction.

Preferably, the left side surface and the right side surface of the bidirectional threaded rod both have two threads with the same specification, and the threads of the left side surface and the right side surface of the bidirectional threaded rod are opposite in direction.

Preferably, the spout quantity is two, two the spout all sets up between two-way threaded rod, and when the slider slided in the spout, two connecting seats can remove to relative one side on two-way threaded rod.

Preferably, the reinforcing mechanism comprises a connecting plate, the connecting plate is fixedly connected to the left end and the right end of the top plate, the connecting plate is fixedly connected with a connecting rod and a spring, the connecting plate is fixedly connected with a sliding block on the opposite side, the sliding block is connected with the surface of the connecting rod in a sliding mode, the spring is sleeved with the surface of the connecting rod inside, a long plate is fixedly connected between the top sliding block and the bottom sliding block, a connecting block is fixedly connected to the center of the back of the bottom of the long plate, the first die and the second die are far away from the connecting block fixedly connected to one side, a rectangular groove is formed in the top plate, a telescopic plate is fixedly connected to the back of the reinforcing mechanism, the surface of the telescopic plate is connected with the inside of the rectangular groove in an inserting mode, the telescopic plate is connected in a stretching mode in the rectangular groove in an inserting mode, the first die and the second die can be fixed, and looseness between the first die and the second die is reduced to a certain extent.

Preferably, the number of the connecting plates is four, and every two of the four connecting plates form a group.

Preferably, the number of the rectangular grooves is eight, the rectangular grooves are formed in the top and the bottom of the long groove, and the front faces of the rectangular grooves are provided with openings.

Preferably, heat dissipation mechanism includes the second motor, second motor fixed connection is in the top support board left side, second motor right side fixedly connected with second pivot, second pivot one side fixedly connected with worm, top and bottom two fixedly connected with first limiting plate between the backup pad, worm surface engagement is connected with the turbine, the first bull stick of fixedly connected with of turbine axle center department, first bull stick surface and the inside rotation of first limiting plate are connected, two about first bull stick surface fixedly connected with first flabellum fixedly connected with second limiting plate between the backup pad, second pivot surface fixedly connected with third gear, third gear surface engagement is connected with the second chain, second chain inside engagement is connected with the fourth gear, fourth gear axle center department fixedly connected with second bull stick, second bull stick surface and the inside rotation of second limiting plate are connected, second bull stick surface fixedly connected with second flabellum, when the second motor starts, finally can make first flabellum and second flabellum carry out the plastic cooling to the finished product in first mould and the second mould.

Preferably, the number of the second rotating shafts is four, every two of the four second rotating shafts form a group, and when the two second rotating shafts rotate, the two second rotating shafts can drive the scroll rods to rotate.

Preferably, second flabellum and first flabellum quantity are two, two first flabellum and second flabellum all set up around first mould and second mould, and when second flabellum and first flabellum blow, can reduce the plastic finished product temperature in first mould and the second mould soon.

Compared with the prior art, the invention provides automatic injection molding production equipment for plastic products, which has the following beneficial effects:

1. this automatic injection moulding production facility of plastic product, through setting up moving mechanism, start first motor, when first motor drives first pivot and rotates, first pivot drives first gear revolve, when first gear drives first chain meshing and connects, first chain can drive two second gears and rotate, at this moment two second gears drive two-way threaded rod at square inslot rotation, two connecting seats move to relative one side on two-way threaded rod, at this moment the connecting seat drives the slider and slides in the spout, the connecting seat drives the supporting shoe, the supporting shoe drives first mould and second mould and carries out fixed combination, make things convenient for the later stage to mould plastics.

2. This automatic injection moulding production facility of plastic product through setting up strengthening mechanism, and first mould and second mould drive the connecting block respectively, and the connecting block drives long board, and the spring is stretched when long board drives the sliding block and slides on the connecting rod, at this moment stretches the expansion plate and pegs graft in the rectangular channel, can be more firm when assembling together first mould and second mould.

3. This automatic injection moulding production facility of plastic product, through setting up heat dissipation mechanism, start the second motor, the second motor drives the second pivot, the second pivot drives the scroll bar, the scroll bar drives the turbine when rotating in situ, the turbine drives first pivot at first limiting plate internal rotation, the top and the bottom both sides of first mould and second mould are bloied when first bull stick drives first flabellum and is dispelled the heat when rotating, also can drive third gear revolve when the second pivot rotates, third gear drives the second chain and meshes the connection, at this moment the second chain can drive the meshing of fourth gear and connect, the fourth gear drives the second bull stick at the internal rotation of second limiting plate, when the second bull stick drives the second flabellum and rotates, can dispel the heat to the left and right sides of first mould and second mould, its cooling efficiency has been accelerated to a certain extent.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor:

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a schematic top view of the structural assembly of the base plate and the moving mechanism;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a schematic top view of the structural assembly of the top plate and reinforcing mechanism;

FIG. 5 is an enlarged view of the structure at B in FIG. 4;

fig. 6 is a schematic top view of the structural assembly of the base plate and the heat dissipation mechanism.

In the figure: 1. a base plate; 2. a support plate; 3. a top plate; 4. a reinforcement mechanism; 41. a connecting plate; 42. a long plate; 43. connecting blocks; 44. a retractable plate; 45. a rectangular groove; 46. a connecting rod; 47. a spring; 48. a slider; 5. a first mold; 6. a moving mechanism; 61. a square groove; 62. a first motor; 63. a first rotating shaft; 64. a first gear; 65. a first chain; 66. a second gear; 67. a long groove; 611. a bidirectional threaded rod; 612. a slider; 613. a chute; 614. a connecting seat; 615. a support block; 7. a heat dissipation mechanism; 71. a second motor; 72. a third gear; 73. a second chain; 74. a second rotating shaft; 75. a scroll bar; 76. a first limit plate; 77. a turbine; 78. a first rotating lever; 79. a first fan blade; 711. a second limiting plate; 712. a second rotating rod; 713. a fourth gear; 714. a second fan blade; 8. a second mold; 9. a liquid inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The invention provides the following technical scheme:

example one

Combine fig. 1 to 3, an automatic injection moulding production facility of plastic product, comprising a base plate 1, first mould 5 and second mould 8 openly equal fixedly connected with feed liquor pipe 9, the equal fixedly connected with backup pad 2 in the 1 front left and right sides of bottom plate, 2 quantity of backup pad are four, 2 openly fixedly connected with roofs of backup pad 3, 1 inside fixedly connected with moving mechanism 6 in bottom plate, 3 front fixedly connected with reinforcing mechanism 4 in roof, 2 inside fixedly connected with heat dissipation mechanism 7 in backup pad.

The moving mechanism 6 comprises a square groove 61, the square groove 61 is formed in the bottom plate 1, the top of the square groove 61 is provided with an opening, the right side of the square groove 61 is fixedly connected with a first motor 62, the left side of the first motor 62 is fixedly connected with a first rotating shaft 63, the surface of the first rotating shaft 63 is fixedly connected with a first gear 64, the surface of the first gear 64 is in meshing connection with a first chain 65, the first chain 65 is in internal meshing connection with a second gear 66, two-way threaded rods 611 are fixedly connected to the axes of the two second gears 66, the surface of each two-way threaded rod 611 is rotatably connected to the inside of the square groove 61, the left side surface and the right side surface of each two-way threaded rod 611 are in threaded connection with a connecting seat 614, sliding grooves 613 are formed in the bottom of the inner wall of the square groove 61, sliding blocks 612 are fixedly connected to the bottom of the connecting seats 614, the surface of each sliding block 612 is slidably connected to the inside of the sliding groove 613, supporting blocks 615 are fixedly connected to the top of the connecting seats 614, the bottoms of the first mold 5 and the second mold 8 are fixedly connected to the top of the supporting blocks 615, the number of the two second gears 66 is two, the two second gears 66 are arranged on the top and the top of the first gear 64, the left side surface and the bottom of the two-way threaded rod, the left side surface of the two-way threaded rod are provided with the same specification, and the right side surface of the same threaded rod, and the right side surface of the left side surface of the right side surface of the supporting block 611, and the right side surface of the two-side surface, and the two-side surface of the two-threaded rod, and the two-threaded rod are opposite to the right side surface of the two-threaded rod 611, and the right side surface of the two-threaded rod 611, and the two-threaded rod are provided with opposite directions of the same specification, and opposite to the same specification, and opposite directions of the same direction of the first gear 611.

Further, the number of the sliding grooves 613 is two, the two sliding grooves 613 are both disposed between the two bidirectional threaded rods 611, by disposing the moving mechanism 6, the first motor 62 is started, when the first motor 62 drives the first rotating shaft 63 to rotate, the first rotating shaft 63 drives the first gear 64 to rotate, when the first gear 64 drives the first chain 65 to engage and connect, the first chain 65 can drive the two second gears 66 to rotate, at this time, the two second gears 66 drive the bidirectional threaded rods 611 to rotate in the square grooves 61, the two connecting seats 614 move on the bidirectional threaded rods 611 to the opposite side, at this time, the connecting seats 614 drive the sliding blocks 612 to slide in the sliding grooves 613, the connecting seats 614 drive the supporting blocks 615, and the supporting blocks 615 drive the first mold 5 and the second mold 8 to be fixedly combined. The injection molding is convenient for the later period.

Example two

Referring to fig. 1-5, and on the basis of embodiment one, further obtain that reinforcing mechanism 4 includes connecting plate 41, both ends about connecting plate 41 fixed connection is in roof 3 top, fixedly connected with connecting rod 46 between two connecting plates 41, the equal fixedly connected with spring 47 in two connecting plates 41 relative one side, spring 47 opposite side fixedly connected with sliding block 48, the inside sliding connection with connecting rod 46 surface of sliding block 48, the inside connecting rod 46 surface of spring 47 cup joints, fixedly connected with long plate 42 between top and the bottom sliding block 48, long plate 42 bottom back center department fixedly connected with connecting block 43, first mould 5 and second mould 8 keep away from one side mutually and all with connecting block 43 fixed connection, rectangular channel 45 has been seted up to roof 3 inside, reinforcing mechanism 4 back fixedly connected with expansion plate 44, expansion plate 44 surface and rectangular channel 45 inside peg graft, connecting plate 41 is four in quantity, four connecting plates 41 are two double-tenth a set of connecting plate.

Further, rectangular channel 45 quantity is eight, rectangular channel 45 sets up in elongated slot 67 top and bottom, rectangular channel 45 openly sets up to the opening, through setting up reinforcing mechanism 4, first mould 5 and second mould 8 drive connecting block 43 respectively, connecting block 43 drives long board 42, spring 47 is stretched when long board 42 drives sliding block 48 and slides on connecting rod 46, at this moment stretch out and draw in rectangular channel 45 with expansion plate 44, can be more firm when assembling together first mould 5 and second mould 8.

EXAMPLE III

Referring to fig. 1-6, on the basis of the first embodiment, the further heat dissipation mechanism 7 includes a second motor 71, the second motor 71 is fixedly connected to the left side of the top support plate 2, the right side of the second motor 71 is fixedly connected with a second rotating shaft 74, one side of the second rotating shaft 74 is fixedly connected with a worm 75, a first limiting plate 76 is fixedly connected between the top support plate 2 and the bottom support plate 2, the surface of the worm 75 is engaged with a turbine 77, the axis of the turbine 77 is fixedly connected with a first rotating rod 78, the surface of the first rotating rod 78 is rotatably connected with the inside of the first limiting plate 76, the surface of the first rotating rod 78 is fixedly connected with a first fan blade 79, the left support plate 2 and the right support plate 2 are fixedly connected with a second limiting plate 711, the surface of the second rotating shaft 74 is fixedly connected with a third gear 72, the surface of the third gear 72 is engaged with a second chain 73, the inside of the second chain 73 is engaged with a fourth gear 713, the axis of the fourth gear 713 is fixedly connected with a second rotating rod 712, the surface of the second rotating rod 712 is rotatably connected with the second limiting plate 711, the surface of the second rotating rod 712 is fixedly connected with a second fan blade 714, and the number of four second rotating shafts 74 is two pairs.

Further, the number of the second fan blades 714 and the number of the first fan blades 79 are two, the two first fan blades 79 and the two second fan blades 714 are arranged around the first mold 5 and the second mold 8, the heat dissipation mechanism 7 is arranged, the second motor 71 is started, the second motor 71 drives the second rotating shaft 74, the second rotating shaft 74 drives the worm 75, the worm 75 drives the worm 77 to rotate in situ, the worm 77 drives the first rotating rod 78 to rotate in the first limiting plate 76, the first rotating rod 78 drives the first fan blades 79 to rotate, air is blown to the top and the bottom of the first mold 5 and the second mold 8 to dissipate heat, the third gear 72 can also be driven to rotate when the second rotating shaft 74 rotates, the third gear 72 drives the second chain 73 to be meshed and connected, at this time, the second chain 73 can drive the fourth gear 713 to be meshed and connected, the fourth gear 713 drives the second rotating rod 712 to rotate in the second limiting plate 711, when the second rotating rod 712 drives the second fan blades to rotate, the left and right sides of the first mold 5 and the second mold 8 can be dissipated heat to a certain degree, and the cooling efficiency is accelerated.

In an actual operation process, when the device is used, the first motor 62 is started, the first motor 62 drives the first rotating shaft 63 to rotate, the first rotating shaft 63 drives the first gear 64 to rotate, the first gear 64 drives the first chain 65 to be meshed and connected, the first chain 65 can drive the two second gears 66 to rotate, the two second gears 66 drive the two-way threaded rod 611 to rotate in the square groove 61, the two connecting seats 614 move to the opposite side on the two-way threaded rod 611, the connecting seats 614 drive the sliding block 612 to slide in the sliding groove 613, the connecting seats 614 drive the supporting block 615, and the supporting block 615 drives the first mold 5 and the second mold 8 to be fixedly combined. The injection molding at the later stage is convenient;

when the first die 5 and the second die 8 are driven to move, the first die 5 and the second die 8 respectively drive the connecting block 43, the connecting block 43 drives the long plate 42, the long plate 42 drives the sliding block 48 to slide on the connecting rod 46, the spring 47 is stretched, and the telescopic plate 44 is stretched and inserted in the rectangular groove 45, so that the first die 5 and the second die 8 can be assembled together more firmly;

when plastic solution is poured into the mold between the first mold 5 and the second mold 8 through the liquid inlet pipe 9 and then cooled, the second motor 71 is started, the second motor 71 drives the second rotating shaft 74, the second rotating shaft 74 drives the worm 75, the worm 75 drives the turbine 77 to rotate in situ, the turbine 77 drives the first rotating shaft 78 to rotate in the first limiting plate 76, the first rotating shaft 78 drives the first fan blades 79 to rotate, air is blown to the top and bottom sides of the first mold 5 and the second mold 8 for heat dissipation, the second rotating shaft 74 also drives the third gear 72 to rotate, the third gear 72 drives the second chain 73 to be meshed and connected, at this time, the second chain 73 can drive the fourth gear 713 to be meshed and connected, the fourth gear 713 drives the second rotating shaft 712 to rotate in the second limiting plate 711, and the second rotating shaft 712 drives the second fan blades 714 to rotate, heat dissipation can be performed to the left and right sides of the first mold 5 and the second mold 8, and cooling efficiency is accelerated to a certain extent.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims (10)

1. The utility model provides an automatic injection moulding production facility of plastic product, includes bottom plate (1), first mould (5) and second mould (8), its characterized in that: the front surfaces of the first mold (5) and the second mold (8) are fixedly connected with liquid inlet pipes (9), the left side and the right side of the front surface of the bottom plate (1) are fixedly connected with supporting plates (2), the number of the supporting plates (2) is four, the front surface of each supporting plate (2) is fixedly connected with a top plate (3), a moving mechanism (6) is fixedly connected inside the bottom plate (1), a reinforcing mechanism (4) is fixedly connected on the front surface of each top plate (3), and a heat dissipation mechanism (7) is fixedly connected inside the surface of each supporting plate (2);

the moving mechanism (6) comprises a square groove (61), the square groove (61) is arranged inside the bottom plate (1), the top of the square groove (61) is arranged to be open, a first motor (62) is fixedly connected to the right side of the square groove (61), a first rotating shaft (63) is fixedly connected to the left side of the first motor (62), a first gear (64) is fixedly connected to the surface of the first rotating shaft (63), a first chain (65) is connected to the surface of the first gear (64) in a meshed manner, a second gear (66) is connected to the first chain (65) in an internally meshed manner, a two-way threaded rod (611) is fixedly connected to the axis of the second gear (66) in a meshed manner, the surface of the two-way threaded rod (611) is connected to the square groove (61) in an internally rotating manner, a connecting seat (614) is connected to the left side surface and the right side surface of the two-way threaded rod (611) in a threaded manner, a sliding groove (613) is formed in the bottom of the inner wall of the square groove (61), a sliding groove (614) is fixedly connected to the bottom of the connecting seat (614), a sliding block (612) is connected to the surface of the sliding groove (612) in a sliding manner, a supporting block (613) is fixedly connected to the top of the supporting block (615), and a mold (615) and a mold (5) is connected to the top of the mold (8).

2. The automatic injection molding production apparatus of a plastic product according to claim 1, wherein: the number of the second gears (66) is two, and the two second gears (66) are arranged at the top and the bottom of the first gear (64).

3. The automatic injection molding production apparatus for plastic products of claim 1, wherein: the left side surface and the right side surface of the bidirectional threaded rod (611) are provided with two threads with the same specification, and the directions of the threads on the left side surface and the right side surface of the bidirectional threaded rod (611) are opposite.

4. The automatic injection molding production apparatus of a plastic product according to claim 1, wherein: the number of the sliding grooves (613) is two, and the two sliding grooves (613) are arranged between the two bidirectional threaded rods (611).

5. The automatic injection molding production apparatus of a plastic product according to claim 1, wherein: reinforcing mechanism (4) is including connecting plate (41), both ends about connecting plate (41) fixed connection is in roof (3) top, two fixedly connected with connecting rod (46), two between connecting plate (41) the equal fixedly connected with spring (47) in the relative one side of connecting plate (41), spring (47) opposite side fixedly connected with sliding block (48), sliding block (48) inside and connecting rod (46) surface sliding connection, spring (47) inside and connecting rod (46) surface cup joint, fixedly connected with long slab (42) between top and bottom sliding block (48), fixedly connected with connecting block (43) are located at long slab (42) bottom back center, first mould (5) and second mould (8) are kept away from one side mutually and all with connecting block (43) fixed connection, rectangular channel (45) have been seted up to roof (3) inside, reinforcing mechanism (4) back fixedly connected with expansion plate (44), expansion plate (44) surface and the inside grafting of rectangular channel (45).

6. The automatic injection molding production apparatus of a plastic product according to claim 5, wherein: the number of the connecting plates (41) is four, and every two of the four connecting plates (41) form a group.

7. The automatic injection molding production apparatus of a plastic product according to claim 5, wherein: the number of the rectangular grooves (45) is eight, the rectangular grooves (45) are arranged at the top and the bottom of the long groove (67), and the front face of each rectangular groove (45) is provided with an opening.

8. The automatic injection molding production apparatus of a plastic product according to claim 1, wherein: the heat dissipation mechanism (7) comprises a second motor (71), the second motor (71) is fixedly connected to the left side of the top supporting plate (2), the right side of the second motor (71) is fixedly connected with a second rotating shaft (74), one side of the second rotating shaft (74) is fixedly connected with a scroll bar (75), a first limit plate (76) is fixedly connected between the top supporting plate (2) and the bottom supporting plate (2), the surface of the worm rod (75) is engaged and connected with a turbine (77), the axis of the turbine (77) is fixedly connected with a first rotating rod (78), the surface of the first rotating rod (78) is rotationally connected with the inner part of the first limit plate (76), the surface of the first rotating rod (78) is fixedly connected with a first fan blade (79), a second limit plate (711) is fixedly connected between the left support plate and the right support plate (2), the surface of the second rotating shaft (74) is fixedly connected with a third gear (72), a second chain (73) is meshed and connected with the surface of the third gear (72), a fourth gear (713) is meshed and connected inside the second chain (73), a second rotating rod (712) is fixedly connected at the axle center of the fourth gear (713), the surface of the second rotating rod (712) is rotationally connected with the inner part of the second limit plate (711), the surface of the second rotating rod (712) is fixedly connected with a second fan blade (714).

9. The automatic injection molding apparatus of claim 8, wherein: the number of the second rotating shafts (74) is four, and every two of the four second rotating shafts (74) form a group.

10. The automatic injection molding apparatus of claim 8, wherein: the number of the second fan blades (714) and the number of the first fan blades (79) are two, and the first fan blades (79) and the second fan blades (714) are arranged around the first mold (5) and the second mold (8).

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