CN116423786A - Plastic accessory injection molding auxiliary fixtures - Google Patents

Abstract

The invention relates to the technical field of plastic accessory processing, in particular to an auxiliary tool for plastic accessory injection molding, which comprises a bracket, wherein a base is arranged at the upper part of the bracket, a fixed seat is connected above the base, first molding grooves are formed in the top surface of the base and the bottom surface of the fixed seat, a supporting block is arranged in the middle of the first molding groove positioned at the lower side, a locking mechanism is arranged between the base and the fixed seat, the fixed seat and the base are mutually fixed by the locking mechanism, a temperature measuring mechanism is arranged at the lower part of the base, the temperature measuring mechanism comprises a movable rod coaxially penetrating through the middle part of the bottom surface of the base, a sleeve is sleeved at the upper end of the movable rod, and a triggering mechanism is arranged in the sliding rod. The invention greatly increases the accuracy of demolding operation, ensures that the plastic fittings have certain softness and are not excessively soft during demolding, not only facilitates the demolding operation of workers, but also avoids the damage of the plastic fittings, and simultaneously improves the production efficiency of the plastic fittings.

Description

Plastic accessory injection molding auxiliary fixtures

Technical Field

The invention relates to the technical field of plastic accessory processing, in particular to an auxiliary tool for plastic accessory injection molding.

Background

The fitting refers to a part or a component of an assembly machine, wherein the fitting comprises a plastic fitting, the plastic fitting has lower manufacturing cost compared with a metal fitting, the plastic fitting can be widely applied to more use scenes, the plastic fitting is produced and processed by adopting an injection molding method, the injection molding is also called injection molding, the injection molding method has the advantages of high production speed and high efficiency, the plastic fitting can be used for forming products with complex shapes, and the injection molding can be applied to the field of mass production, products with complex shapes and other molding processing.

The current injection molding method can be divided into six stages, namely mold closing, glue injection, pressure maintaining, cooling, mold opening and product taking out, a large number of plastic accessories can be produced periodically in batches by workers only through repeating the processes, and injection molding auxiliary tools including clamps, molds, measuring tools, checking tools and the like are needed in the process, wherein the most important is the molds, the workers only need to place the molds on corresponding injection molding openings after closing the molds in the operation process, and after the subsequent glue injection, pressure maintaining and cooling processes are finished, the workers take the molds again and open the molds to release finished products, so that the preparation of the plastic accessories can be completed.

However, in the existing injection molding process, the operator usually measures the temperature of the mold to determine whether the cooling process of the mold is completed, and thus, even if the outer wall of the mold is thin, errors exist, and thus, the problem of insufficient cooling can occur in the demolding process, and then, the plastic fittings produced by demolding have excessive flexibility, and then, deformation of the plastic fittings can be easily caused, if the cooling process is completed by lengthening the cooling time, the processing efficiency of the plastic fittings can be slowed down, and therefore, the invention provides an auxiliary tool for injection molding of the plastic fittings.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects in the prior art, the invention provides an auxiliary tool for injection molding of plastic fittings, which can effectively solve the problems in the prior art.

Technical proposal

In order to achieve the above purpose, the invention is realized by the following technical scheme:

the invention provides an injection molding auxiliary tool for plastic accessories, which comprises a bracket, wherein a base is arranged at the upper part of the bracket, a fixed seat is connected above the base, first molding grooves are formed in the top surface of the base and the bottom surface of the fixed seat, a supporting block is arranged in the middle of the first molding groove at the lower side, a plurality of connecting blocks are fixedly arranged on the bottom surface of the supporting block, connecting grooves matched with the connecting blocks in an inserting manner are formed in the first molding groove at the lower side, a locking mechanism is arranged between the base and the fixed seat, and the fixed seat and the base are mutually fixed by the locking mechanism;

the lower part of the base is provided with a temperature measuring mechanism, the temperature measuring mechanism comprises a movable rod coaxially penetrating through the middle part of the bottom surface of the base, the upper end of the movable rod is sleeved with a sleeve, the upper end of the movable rod is rotatably connected with a piston plate, the position, opposite to the upper part of the piston plate, inside the sleeve is filled with thermal expansion liquid, the lower end of the movable rod is in an annular equidistant structure and is provided with a plurality of connecting rods, the outer side end of each connecting rod is connected with a sliding rod, and the bottom surface of the base is provided with a rod groove in sliding fit with the sliding rod;

the sliding rod is internally provided with a trigger mechanism which is used for unlocking the locking mechanism.

Preferably, the temperature measuring mechanism further comprises a round seat, a plurality of round rods which are fixedly arranged on the outer wall of the round seat through annular equidistant structures are coaxially fixedly provided with round rings, a telescopic rod is fixedly arranged between the middle part of the top surface of the round rod and the bottom surface of the base, a supporting spring is sleeved on the outer wall of the extension end of the telescopic rod, the round seat is of an annular structure, a swivel is slidably arranged at the upper end inside the round seat, the lower end of the movable rod sequentially penetrates the inside of the swivel and the inside of the round seat to extend to the lower side, the upper end of the swivel is coaxially and rotatably connected with the bottom surface of the base, a first guide block is fixedly arranged on the lower end of the outer wall of the swivel, and a first arc slot which is in sliding fit with the first guide block is formed in the inner wall of the round seat.

Preferably, the coaxial cover of movable rod lower extreme is equipped with the outer loop, the outer loop transversal personally submits C structure, connecting rod inboard end is fixed with outer loop outer wall connection, connecting rod inside sliding connection has first extrusion pole, first extrusion pole inboard end runs through outer loop outer wall and extends to its inside and with outer loop sliding connection, first extrusion pole inboard end is hemisphere body structure, movable rod outer wall lower extreme has seted up with first extrusion groove of first extrusion pole inboard end extrusion complex.

Preferably, the outer side end of the first extrusion rod penetrates through the outer wall of the sliding rod to extend to the inside of the first extrusion rod and is in sliding connection with the sliding rod, the top surface of the outer side end of the first extrusion rod is of an inclined surface structure, a round groove is formed in the lower side inside the sliding rod, the triggering mechanism comprises a lifting seat which is in sliding connection with the inside of the round groove, a second extrusion groove is formed in the bottom surface of the lifting seat, the second extrusion groove is in extrusion fit with the top surface of the outer side end of the first extrusion rod, a second extrusion rod is fixedly connected to the top surface of the lifting seat in a coaxial mode, and the second extrusion rod is in sliding connection with the inside of the sliding rod.

Preferably, the inner chamber has been seted up for the position of second extrusion pole upper end on slide bar upper portion, the inner chamber both sides all are provided with the opening, the inside rotation of inner chamber is connected with first magnet, first magnet is N pole near inserted block one end, perpendicular groove has been seted up to first magnet bottom surface, second extrusion pole upper end extends to perpendicular inslot portion and rather than sliding fit, second extrusion pole outer wall upper end has set firmly the second guide block, perpendicular inslot wall has seted up with second guide block sliding fit's second arc chute.

Preferably, the locking mechanism comprises an insert ring which is coaxially and fixedly connected with the bottom surface of the fixing seat, the inner diameter of the insert ring is equal to the diameter of the opening end of the first forming groove at the upper side and smaller than the diameter of the opening end of the first forming groove at the lower side, a plurality of insert blocks are fixedly arranged on the outer wall of the insert ring in an annular equidistant structure, annular grooves which are in insertion fit with the insert ring and block grooves which are in insertion fit with the insert blocks are respectively arranged on the base, a bottom plate is elastically connected with the bottom surface of the block groove through a reset spring, and the top surface of the bottom plate is in extrusion fit with the bottom surface of the insert block.

Preferably, one end of the block groove is communicated with the rod groove, an edge groove is formed in the outer wall of one side, far away from the sliding rod, of the insert block, a fixed block is elastically connected in the edge groove through two compression springs, a second magnet is embedded in the top surface of the fixed block, close to one end of the sliding rod, of the second magnet, the bottom surface of the fixed block is far away from one end of the sliding rod, of the second magnet is of an N pole, and the bottom surface of the fixed block is of an inclined surface structure, and a fixed groove matched with the fixed block in an inserting mode is formed in the inner wall of the block groove.

Preferably, the coaxial rotation of fixing base top surface is connected with the screw thread seat, threaded connection has the screw thread lid on the screw thread seat, the pan feeding mouth has been coaxially seted up to the position of the relative screw thread seat of fixing base top surface, the pan feeding mouth upper end is coaxial to be equipped with the pivot, be annular equidistant structure between pivot outer wall and the pan feeding mouth inner wall and set firmly a plurality of dialling the board, the dialling the board and be the slope structure setting.

Preferably, the base is inside and the fixing base is inside for the equidistant structure of annular all seting up a plurality of silo with the position of first shaping groove outside, the silo middle part is arc shape structure, is located the upside the silo upside open end is linked together with the pan feeding mouth, is located the downside the silo downside open end is linked together with the first shaping groove lower part that is located the downside, is located the downside the silo upside open end is connected with the intubate, intubate outer wall upper end joint has the sealing washer, intubate and the silo downside open end grafting cooperation that is located the upside have been seted up in the silo with sealing washer joint complex seal groove.

Preferably, the support comprises a limiting ring and a plurality of supporting legs which are fixedly connected, the inner wall of the limiting ring is in sliding contact with the outer wall of the base, a supporting groove which is in running fit with the circular ring is formed in the inner wall of the supporting legs, the sleeve is made of a material with good thermal conductivity, the lower end of the outer wall of the circumference of the sleeve is communicated with the inner part of a first forming groove which is positioned at the lower side, the piston plate is in friction contact with the inner wall of the sleeve, a vertical rod is fixedly connected with the bottom surface of the piston plate coaxially, the vertical rod is in running connection with a movable rod, a plurality of sliding grooves are formed in the outer wall of the movable rod, a sliding block is connected in the sliding groove in a sliding manner relative to the inner wall of the rotating ring, a second forming groove is formed in the top surface of the supporting block, and a bottom groove which is in splicing fit with the upper end of the sleeve is formed in the bottom surface of the supporting block.

Advantageous effects

Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:

1. the invention is provided with the temperature measuring mechanism, through the structure, the plastic accessory injection molded inside the device can be subjected to real-time temperature monitoring, and the base and the fixing seat in the device can be separated from each other in the first time after the plastic accessory is cooled by matching with the locking mechanism and the triggering mechanism, so that the accuracy of demolding operation is greatly improved, the plastic accessory is ensured to have certain softness and not to be excessively soft during demolding, the demolding operation of workers is facilitated, the damage of the plastic accessory is avoided, and meanwhile, the production efficiency of the plastic accessory is improved.

2. The invention is provided with the poking plate and the rotating shaft, and in the structure, the impact force generated by the raw materials can act on the poking plate in the process of injecting the external raw materials into the device, so that the base and the fixing seat can be driven to rotate, the centrifugal force and the vibration effect generated by the rotation on the raw materials can discharge bubbles in the raw materials, the empty drum phenomenon in the produced plastic fittings is avoided, meanwhile, the flowability of the raw materials can be endowed, the problem of inconsistent cooling speed caused by the injection sequence is avoided, the quality of the plastic fittings is effectively improved, and the design is ingenious.

3. The invention is provided with the trough, the trough is arranged around the first forming trough, and the middle part of the trough is wound around the first forming trough in an arc shape, so that when the device is used for injecting hot raw materials, the heat of the hot raw materials can generate a heat preservation effect on the first forming trough, and the condition that the cooling speed of the raw materials is inconsistent due to sequential injection sequences is further ensured.

4. According to the invention, through the special structures of the first molding groove and the second molding groove, the plastic split pin and the inserted link used for reinforcing the plastic split pin can be prepared simultaneously by one-time injection molding, and the design can achieve the effects of less development of one set of mold, less one-time injection molding and less one-time mold assembly, so that the mold, production and assembly costs are saved, the production efficiency is improved, and the practicability is strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

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

FIG. 2 is a schematic diagram of an exploded construction of the present invention;

FIG. 3 is a schematic side sectional view of a fixing base of the present invention;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3A according to the present invention;

FIG. 5 is a schematic diagram of a semi-sectional bottom view of a fixing base of the present invention;

FIG. 6 is a schematic cross-sectional view of a base and a bracket according to the present invention;

FIG. 7 is a schematic diagram of the trend structure of a trough in a base of the invention;

FIG. 8 is a schematic view of a semi-sectional structure of a base and a supporting block according to the present invention;

FIG. 9 is a schematic diagram of a cross-sectional top surface of a base of the present invention;

FIG. 10 is a schematic cross-sectional view of a swivel in accordance with the invention;

FIG. 11 is a schematic diagram of the connection relationship between the movable rod and the slide rod and the trigger mechanism of the present invention;

FIG. 12 is an enlarged schematic view of the structure of FIG. 11B according to the present invention;

FIG. 13 is a schematic cross-sectional view of a slide bar according to the present invention;

FIG. 14 is an exploded view of the trigger mechanism of the present invention;

FIG. 15 is a schematic cross-sectional view of a first magnet according to the present invention;

FIG. 16 is a schematic view of a first forming trough and feed inlet and trough arrangement of the present invention;

fig. 17 is a schematic cross-sectional view of the plastic part after injection molding and demolding of the present invention.

Reference numerals in the drawings represent respectively: 1. a bracket; 2. a base; 3. a fixing seat; 4. a first molding groove; 5. a support block; 6. a connecting block; 7. a connecting groove; 8. a locking mechanism; 9. a temperature measuring mechanism; 10. a movable rod; 11. a sleeve; 12. a piston plate; 13. a connecting rod; 14. a slide bar; 15. a rod groove; 16. a trigger mechanism; 17. a round seat; 18. a round bar; 19. a circular ring; 20. a telescopic rod; 21. a support spring; 22. a swivel; 23. a first guide block; 24. a first arc slot; 25. an outer ring; 26. a first extrusion rod; 27. a first pressing groove; 28. a circular groove; 29. lifting the seat; 30. a second pressing groove; 31. a second extrusion rod; 32. an inner cavity; 33. a block groove; 34. a first magnet; 35. a vertical groove; 36. a second guide block; 37. a second arc slot; 38. inserting a ring; 39. inserting blocks; 40. a ring groove; 41. a side groove; 42. a compression spring; 43. a fixed block; 44. a second magnet; 45. a screw seat; 46. a screw cap; 47. a feed inlet; 48. a rotating shaft; 49. a poking plate; 50. a trough; 51. a cannula; 52. a seal ring; 53. sealing grooves; 54. a limiting ring; 55. a support leg; 56. a support groove; 57. a vertical rod; 58. a chute; 59. a slide block; 60. a return spring; 61. a bottom plate; 62. a fixing groove; 63. a second molding groove; 64. a bottom groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. 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.

The utility model provides a plastic accessory injection moulding auxiliary fixtures, refer to fig. 1-17, including support 1, support 1 is connected fixedly by spacing ring 54 and a plurality of landing leg 55 and constitutes, support 1 upper portion is equipped with base 2, base 2 top is connected with fixing base 3, first shaping groove 4 has all been seted up to base 2 top surface and fixing base 3 bottom surface, be located the first shaping groove 4 middle part of downside and be equipped with supporting shoe 5, a plurality of connecting blocks 6 have been set firmly to supporting shoe 5 bottom surface, be located the inside connecting groove 7 of pegging graft complex with connecting block 6 of having seted up of first shaping groove 4 of downside, be equipped with locking mechanism 8 between base 2 and the fixing base 3, locking mechanism 8 is fixed fixing base 3 and base 2 each other.

The locking mechanism 8 comprises an inserting ring 38 which is coaxially and fixedly connected with the bottom surface of the fixed seat 3, the inner diameter of the inserting ring 38 is equal to the diameter of the opening end of the first forming groove 4 positioned at the upper side and smaller than the diameter of the opening end of the first forming groove 4 positioned at the lower side, a plurality of inserting blocks 39 are fixedly arranged on the outer wall of the inserting ring 38 in an annular equidistant structure, annular grooves 40 which are in inserting fit with the inserting ring 38 and block grooves 33 which are in inserting fit with the inserting blocks 39 are respectively arranged on the base 2, the bottom surface of the block grooves 33 is elastically connected with a bottom plate 61 through a reset spring 60, the top surface of the bottom plate 61 is in extrusion fit with the bottom surface of the inserting block 39, the bottom plate 61 cannot eject the locking mechanism 8 in a locking state, and when the locking mechanism 8 is unlocked, the bottom plate 61 ejects the locking mechanism 8 out of the base 2 in the first time, one end of the block grooves 33 is communicated with the rod groove 15, a side groove 41 is formed in the outer wall of one side of the inserting block 39, a fixed block 43 is elastically connected with the side groove 41 through two compression springs 42, a second magnet 44 is embedded on one end of the top surface of the fixed block 43, which is close to one end of the top surface of the sliding rod 14, the second magnet 44 is in the fixed block 43, one end of the second magnet 44 is close to the bottom surface of the fixed block 43 is in the bottom surface of the fixed block 43, and is far away from the inner wall of the fixed block 43, and is in the fixed groove 43.

The coaxial rotation of fixing base 3 top surface is connected with screw seat 45, screw connection has screw cap 46 on the screw seat 45, the feed inlet 47 has been seted up to the coaxial position of the relative screw seat 45 of fixing base 3 top surface, screw seat 45 and feed inlet 47 are arranged in to the injection hot raw materials in to first shaping groove 4, the coaxial pivot 48 that is equipped with of feed inlet 47 upper end, be annular equidistant structure between pivot 48 outer wall and the feed inlet 47 inner wall and set firmly a plurality of poking plates 49, poking plate 49 is the slope structure setting, because the pressure of injection raw materials needs very big, so the raw materials will make poking plate 49 drive base 2 and fixing base 3 rotatory when striking poking plate 49.

The inside of base 2 and fixing base 3 are the equidistant structure of annular with respect to the position of first shaping groove 4 outside and have been seted up a plurality of silo 50, the silo 50 middle part is arc shape structure, the trend of silo 50 is according to first shaping groove 4 structure setting, and it is in the adjacent position of first shaping groove 4 always, in the hot raw materials can be conducted into first shaping groove 4 when passing from silo 50, the upside open end of silo 50 that is located the upside is linked together with pan feeding mouth 47, the downside open end of silo 50 that is located the downside is linked together with the first shaping groove 4 lower part that is located the downside, such structure is filled hot raw materials into first shaping groove 4 through the communicating vessel principle, the upside open end of silo 50 that is located the downside is connected with intubate 51, intubate 51 and the downside open end grafting cooperation of silo 50 that is located the upside, be located upside silo 50 in set up with sealing washer 52 joint cooperation seal groove 53, the structure here is in order to link up a plurality of silo 50 one-to-one of downside both sides, and guarantee the sealing that is located the sealing groove 52 can be located the downside.

The lower part of the base 2 is provided with a temperature measuring mechanism 9, the temperature measuring mechanism 9 comprises a movable rod 10 coaxially penetrating through the middle part of the bottom surface of the base 2, the upper end of the movable rod 10 is sleeved with a sleeve 11, the upper end of the movable rod 10 is rotationally connected with a piston plate 12, the position, opposite to the upper part of the piston plate 12, of the sleeve 11 is filled with thermal expansion liquid, the thermal expansion liquid can expand when heat rises, the sleeve 11 and the piston plate 12 can form a thermometer-like structure through the temperature sensing of the thermal expansion liquid, so that the temperature in the device can be monitored, the lower end of the movable rod 10 is in an annular equidistant structure, a plurality of connecting rods 13 are arranged, the outer side ends of the connecting rods 13 are connected with sliding rods 14, and rod grooves 15 in sliding fit with the sliding rods 14 are formed in the bottom surface of the base 2.

The temperature measuring mechanism 9 further comprises a round seat 17, the outer wall of the round seat 17 is fixedly provided with a plurality of round rods 18 which are in annular equidistant structures, the annular rings 19 are coaxially fixedly provided with the round rods 18, a telescopic rod 20 is fixedly arranged between the middle part of the top surface of the round rods 18 and the bottom surface of the base 2, a supporting spring 21 is sleeved on the outer wall of the extension end of the telescopic rod 20, the telescopic rod 20 and the supporting spring 21 are used for sensing the whole weight of the base 2 and the fixed seat 3, the round seat 17 is in an annular structure, the upper end of the inner part of the round seat 17 is slidably provided with a rotating ring 22, the lower end of the movable rod 10 sequentially penetrates through the inner part of the rotating ring 22 and the inner part of the round seat 17 to the lower part, the upper end of the rotating ring 22 is coaxially and rotatably connected with the bottom surface of the base 2, the lower end of the outer wall of the rotating ring 22 is fixedly provided with a first guide block 23, the inner wall of the round seat 17 is provided with a first arc slot 24 which is slidably matched with the first guide block 23, after the weight of the base 2 and the fixed seat 3 is increased, the rotating ring 22 is lowered together with the first arc slot 24, then the first guide block 23 on the rotating ring 22 is extruded by the first arc slot 24 to generate deflection by the first arc slot 24, the inner wall 17 is arranged on the inner wall of the round seat 17, the inner wall of the rotating the round seat 17 is arranged on the base 17, the inner wall of the base 2 and the fixed seat 2 is rotatably with the fixed seat 2, the fixed seat 2 and the sliding chute 58 is also rotatably connected with the inner part of the fixed seat 2, and the sliding seat 2 is connected with the sliding seat 2, and the sliding seat 2 is connected with the sliding seat 2, and the sliding seat 2 and the sliding seat 59.

The coaxial cover of movable rod 10 lower extreme is equipped with outer loop 25, outer loop 25 rotates with movable rod 10 to be connected, the cross-section of outer loop 25 personally submits C structure, connecting rod 13 inboard end is fixed with outer loop 25 outer wall connection, connecting rod 13 inside sliding connection has first extrusion rod 26, first extrusion rod 26 inboard end runs through outer loop 25 outer wall and extends to its inside and with outer loop 25 sliding connection, first extrusion rod 26 inboard end is hemisphere structure, first extrusion groove 27 with first extrusion rod 26 inboard end extrusion fit is seted up to movable rod 10 outer wall lower extreme, when movable rod 10 rotates, first extrusion groove 27 can produce the extrusion effect to the inner of first extrusion rod 26, because the inner wall of first extrusion groove 27 is the cambered surface structure and gets close to movable rod 10 outer wall more and more from the position originally in first extrusion rod 26, first extrusion rod 26 can be extruded outside side activity in movable rod 10 rotation, first extrusion rod 26 outboard end runs through slide bar 14 outer wall and extends to its inside and with slide bar 14 sliding connection, first extrusion rod 26 outboard end top surface is the inclined plane structure, slide bar 14 inside downside has seted up groove 28.

The inside of the slide bar 14 is provided with a trigger mechanism 16, the trigger mechanism 16 is used for unlocking the locking mechanism 8, the trigger mechanism 16 comprises a lifting seat 29 which is slidably connected with the inside of a round groove 28, the bottom surface of the lifting seat 29 is provided with a second extrusion groove 30, the second extrusion groove 30 is in extrusion fit with the top surface of the outer side end of the first extrusion bar 26, the first extrusion bar 26 can generate extrusion effect on the second extrusion groove 30 when moving outwards, at first, the second extrusion groove 30 corresponds to the inclined surface of the first extrusion bar 26, so the position of the lifting seat 29 is unchanged, the lifting seat 29 can not move transversely after extrusion, and then can only move upwards along the round groove 28, the top surface of the lifting seat 29 is coaxially and fixedly connected with a second extrusion bar 31, the second extrusion bar 31 can rise along with the lifting seat 29 at the same time, the second extrusion bar 31 is slidably connected with the inside of the slide bar 14, an inner cavity 32 is formed at the upper part of the slide bar 14 relative to the upper end of the second extrusion bar 31, the two sides of the inner cavity 32 are provided with openings, one opening direction corresponds to the direction of the second magnet 44, the first magnet 34 is rotationally connected in the inner cavity 32, one end of the first magnet 34 close to the insert 39 is N pole, in the state of not filling raw materials in the device, the N pole of the second magnet 44 in the locking mechanism 8 corresponds to the N pole of the first magnet 34, so that the first magnet 34 can generate repulsive force to the second magnet 44 and assist the locking mechanism 8 to lock so that no leakage can occur during the injection of external raw materials, the bottom surface of the first magnet 34 is provided with a vertical groove 35, the upper end of the second extrusion rod 31 extends into the vertical groove 35 and is in sliding fit with the vertical groove 35, the upper end of the outer wall of the second extrusion rod 31 is fixedly provided with a second guide block 36, the inner wall of the vertical groove 35 is provided with a second arc groove 37 in sliding fit with the second guide block 36, when the raw material amount in the device is slowly increased, the second extrusion rod 31 is also slowly inserted into the vertical groove 35 under the driving of the lifting seat 29, then the second guide block 36 extrudes the second arc groove 37, the first magnet 34 provided with the second arc groove 37 rotates, the movable rod 10 is pushed to the lower side under the action of the thermal expansion liquid because of the heat of the injected raw materials, the position of the first magnet 34 is far away from the second magnet 44 before the movable rod rotates 90 degrees, so that the repulsive force is always generated by the first magnet 34 on the second magnet 44 in the process, when the first forming groove 4 is filled, the first magnet 34 just rotates 180 degrees, the second magnet 44 is not influenced because of the distance, after the subsequent raw materials are cooled and solidified, the movable rod 10 returns to the original position under the shrinkage of the thermal expansion liquid, the first magnet 34 and the second magnet 44 are rotated 180 degrees to restore the original position relationship, the first magnet 34 corresponds to the N pole of the second magnet 44 at the moment, the second magnet 44 is sucked into the side groove 41, the fixing groove 62 can not limit the position of the fixing block 43, and the bottom plate 61 can jack up the locking mechanism 8 and the fixing seat 3 at the same time, so that demolding can be performed at the first time when the plastic accessory is cooled, the accuracy of demolding operation is greatly improved, the plastic accessory is ensured to have certain softness and not to be excessively soft during demolding, the demolding operation of workers is facilitated, the damage of the plastic accessory is avoided, and meanwhile, the production efficiency of the plastic accessory is improved.

In addition, after the weight of the base 2 and the fixing base 3 is reduced after the demolding is completed, the supporting spring 21 will support the base 29 and bring the second extrusion rod 31 back to the original position under the action of gravity, and then the first magnet 34 will also be restored to the original position, and the first extrusion rod 26 will also be restored to the original position under the action of backward extrusion.

The inner wall of the limiting ring 54 is in sliding contact with the outer wall of the base 2, the inner wall of the supporting leg 55 is provided with a supporting groove 56 which is in running fit with the circular ring 19, the sleeve 11 is made of a material with good heat conductivity, the lower end of the outer wall of the circumference of the sleeve 11 is communicated with the inner part of the first forming groove 4 positioned at the lower side, the piston plate 12 is in friction contact with the inner wall of the sleeve 11, the bottom surface of the piston plate 12 is fixedly connected with a vertical rod 57 in a coaxial mode, the vertical rod 57 is in running connection with the movable rod 10, the movable rod 10 moves up and down and is driven by the vertical rod 57 and the piston plate 12, but the rotation of the movable rod is not capable of reversely influencing the vertical rod 57 and the piston plate 12, the top surface of the supporting block 5 is provided with a second forming groove 63, and the bottom groove 64 which is in plugging fit with the upper end of the sleeve 11 is provided on the bottom surface of the supporting block 5.

The middle part of the first forming groove 4 positioned at the upper side is of a cylindrical structure, an annular groove is arranged around the lower end of the first forming groove 4, the outer side edge of the top surface of the annular groove is of a round angle structure, the lower end of the first forming groove 4 at the upper side corresponds to the second forming groove 63, the upper end of the second forming groove 63 is of the same cylindrical structure as the middle part of the first forming groove 4, the lower end of the second forming groove 63 is of an inverted round table structure, on the other hand, the upper end of the circumferential inner wall of the second forming groove 63 is provided with a groove body which is communicated with the upper part of the first forming groove 4 positioned at the lower side, the upper part of the first forming groove 4 positioned at the lower side is of an annular structure under the influence of the supporting block 5, the lower part of the first forming groove 4 positioned at the lower side is of a plurality of annular equidistant fan-shaped structures, the inner and outer diameters of the upper ends of the fan-shaped structure parts of the first forming groove 4 at the lower side are equal to the inner and outer diameters of the annular opening ends of the first forming groove 4 at the lower side, the inner diameter of the lower end of the fan-shaped part of the lower first forming groove 4 is reduced to the outer diameter of the sleeve 11, the lower end of the fan-shaped part of the lower first forming groove 4 is in a trapezoid column structure with small inside and large outside in plan view, only part of the lower end of the lower first forming groove 4 is communicated with the outer wall of the sleeve 11, the outer edge of the upper first forming groove 4 and the lower first forming groove jointly form a model of a plastic split tail pin, the middle part of the upper first forming groove 4 and the second forming groove 63 jointly form a rod inserting model of the plastic split tail pin, the rod inserting model and the rod inserting model are connected through a groove body at the opening end of the second forming groove 63, and therefore the rod inserting model and the rod inserting model can be prepared through injection molding at the same time, and when a worker is demoulded, the connecting plastic formed at the position of the broken groove body can be prepared and used conveniently and quickly.

Working principle: the staff only needs to connect the fixing seat 3 on the base 2 by using the locking mechanism 8, then only needs to unscrew the screw cap 46 to inject the hot raw material for injection molding into the first molding groove 4 and the second molding groove 63 by using the external conveying pipe, and the pushing force of the raw material for injection molding is very large in the injection process, so that the raw material can push the poking plate 49 to drive the whole base 2 and the fixing seat 3 to rotate, the raw material can have fluidity when the material is injected, the oscillation effect generated by rotation can better discharge bubbles in the raw material, empty drums are avoided in plastic fittings after injection molding, meanwhile, the trough 50 is arranged at the edge position and the middle part of the first molding groove 4 in an arc-shaped structure, so that the hot raw material passing through the trough 50 can generate a heat preservation effect on the first molding groove 4, the turbulent flow effect of the raw materials in the first forming groove 4 can be effectively guaranteed by matching the rotation of the base 2 and the fixed seat 3, the problem of layered solidification of the raw materials in the injection process can be effectively solved, because the bearing capacity of the device is fixed, the injection quantity can be limited in the injection process, the injection of the raw materials can be stopped when the injection quantity reaches the standard, the screw cap 46 is closed again to rest the device and cool the device, the temperature measuring mechanism 9 can automatically unlock the locking mechanism 8 after the cooling is finished, then the base 2 and the fixed seat 3 are separated automatically, the connecting positions of the plurality of grooves 50 on the two sides of the lower side are influenced by the insertion pipes 51, the solidified raw materials in the grooves 50 can be in a condition that the diameter is reduced at the positions of the insertion pipes 51, the parts can be easily broken by pulling when the fixed seat 3 is sprung up, and the demoulding operation of workers is convenient, finally, the worker can melt and discharge the waste raw materials in the trough 50 by only inversely heating the device;

when the device is used in the injection molding process of plastic accessories, the temperature measuring mechanism 9 and the triggering mechanism 16 are matched with the locking mechanism 8 so that the device has three states:

firstly, under the conditions that the weight of the device is light and the internal temperature is not high before raw materials are injected, the locking mechanism 8 is in a locking state, and the fixing seat 3 and the base 2 can be connected by a worker because the fixing blocks 43 are elastically connected;

then, after the raw materials are injected, the weight of the device is increased, the internal temperature is also increased, the state of the locking mechanism 8 is not changed, the thermal expansion liquid in the temperature measuring mechanism 9 is expanded, and a worker can observe the change of the internal temperature of the device from the lower end of the movable rod 10;

finally, after the raw materials are cooled, the weight of the device is in an enlarged state, the temperature in the device is reduced to the original temperature, at this time, the locking mechanism 8 is unlocked under the action of the triggering mechanism 16, the fixed seat 3 is jacked up by the bottom plate 61, and a worker only needs to take off the fixed seat 3 to demold the plastic fittings.

The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; these modifications or substitutions do not depart from the essence of the corresponding technical solutions from the protection scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides a plastic accessory injection moulding auxiliary fixtures, includes support (1), its characterized in that: the support is characterized in that a base (2) is arranged on the upper portion of the support (1), a fixing seat (3) is connected above the base (2), first forming grooves (4) are formed in the top surface of the base (2) and the bottom surface of the fixing seat (3), supporting blocks (5) are arranged in the middle of the first forming grooves (4) and located on the lower side, a plurality of connecting blocks (6) are fixedly arranged on the bottom surface of the supporting blocks (5), connecting grooves (7) which are in plug-in fit with the connecting blocks (6) are formed in the first forming grooves (4) located on the lower side, a locking mechanism (8) is arranged between the base (2) and the fixing seat (3), and the fixing seat (3) and the base (2) are mutually fixed by the locking mechanism (8);

the temperature measuring mechanism (9) is arranged at the lower part of the base (2), the temperature measuring mechanism (9) comprises a movable rod (10) coaxially penetrating through the middle part of the bottom surface of the base (2), a sleeve (11) is sleeved at the upper end of the movable rod (10), a piston plate (12) is rotatably connected at the upper end of the movable rod (10), thermal expansion liquid is filled in the sleeve (11) at a position above the piston plate (12) relatively, a plurality of connecting rods (13) are arranged at the lower end of the movable rod (10) in an annular equidistant structure, a sliding rod (14) is connected at the outer side end of the connecting rod (13), and a rod groove (15) in sliding fit with the sliding rod (14) is formed in the bottom surface of the base (2);

the sliding rod (14) is internally provided with a trigger mechanism (16), and the trigger mechanism (16) is used for unlocking the locking mechanism (8).

2. The plastic fitting injection molding auxiliary tool according to claim 1, wherein: the temperature measuring mechanism (9) further comprises a round seat (17), a plurality of round rods (18) which are fixedly arranged on the outer wall of the round seat (17) through annular equidistant structures are coaxially fixedly provided with a round ring (19), a telescopic rod (20) is fixedly arranged between the middle part of the top surface of the round rod (18) and the bottom surface of the base (2), a supporting spring (21) is sleeved on the outer wall of the extension end of the telescopic rod (20), the round seat (17) is of an annular structure, a swivel ring (22) is slidably arranged at the upper end inside the round seat (17), the lower end of the movable rod (10) sequentially penetrates the inside of the swivel ring (22) and the inside of the round seat (17) to the lower side, the upper end of the swivel ring (22) is coaxially connected with the bottom surface of the base (2), a first guide block (23) is fixedly arranged at the lower end of the outer wall of the swivel ring (22), and a first arc slot (24) which is slidably matched with the first guide block (23) is formed in the inner wall of the round seat (17).

3. The plastic fitting injection molding auxiliary tool according to claim 2, wherein: the coaxial cover of movable rod (10) lower extreme is equipped with outer loop (25), the transversal C structure that personally submits of outer loop (25), connecting rod (13) inboard end is fixed with outer loop (25) outer wall connection, connecting rod (13) inside sliding connection has first extrusion pole (26), first extrusion pole (26) inboard end runs through outer loop (25) outer wall and extends to its inside and with outer loop (25) sliding connection, first extrusion pole (26) inboard end is hemisphere body structure, first extrusion groove (27) with first extrusion pole (26) inboard end extrusion fit are seted up to movable rod (10) outer wall lower extreme.

4. A plastic fitting injection molding aid as claimed in claim 3, wherein: the utility model discloses a trigger mechanism, including slide bar (14), slide bar (14) are connected in the inside of slide bar (14), slide bar (14) are connected in the outside end top surface, round groove (28) have been seted up to slide bar (14) inside downside, trigger mechanism (16) are connected in the inside sliding mode including round groove (28) lifting seat (29), second extrusion groove (30) have been seted up to lifting seat (29) bottom surface, second extrusion groove (30) and first extrusion bar (26) outside end top surface extrusion cooperation, coaxial fixedly connected with second extrusion rod (31) of lifting seat (29) top surface, second extrusion rod (31) and slide bar (14) inside sliding connection.

5. The plastic fitting injection molding auxiliary tool according to claim 4, wherein: the utility model discloses a sliding rod, including slide bar (14), inner chamber (32) have been seted up in the position of slide bar (14) upper portion for second extrusion pole (31) upper end, inner chamber (32) both sides all are provided with the opening, inner chamber (32) inside rotation is connected with first magnet (34), first magnet (34) are N utmost point near insert (39) one end, perpendicular groove (35) have been seted up to first magnet (34) bottom surface, second extrusion pole (31) upper end extends to perpendicular inslot (35) and rather than sliding fit, second extrusion pole (31) outer wall upper end has set firmly second guide block (36), perpendicular groove (35) inner wall has seted up second arc groove (37) with second guide block (36) sliding fit.

6. The plastic fitting injection molding auxiliary tool according to claim 1, wherein: the locking mechanism (8) comprises an inserting ring (38) which is coaxially and fixedly connected with the bottom surface of the fixing seat (3), the inner diameter of the inserting ring (38) is equal to the diameter of the opening end of the first forming groove (4) positioned at the upper side and smaller than the diameter of the opening end of the first forming groove (4) positioned at the lower side, a plurality of inserting blocks (39) are fixedly arranged on the outer wall of the inserting ring (38) in an annular equidistant structure, ring grooves (40) which are in inserting fit with the inserting ring (38) and block grooves (33) which are in inserting fit with the inserting blocks (39) are respectively arranged on the base (2), the bottom surface of the block grooves (33) is elastically connected with a bottom plate (61) through a reset spring (60), and the top surface of the bottom plate (61) is in extruding fit with the bottom surface of the inserting blocks (39).

7. The plastic fitting injection molding auxiliary tool according to claim 6, wherein: the utility model discloses a sliding rod structure, including slider (14), fixed block (33), fixed block (43), inserted block (39), fixed block (43) are linked together in slider groove (33) one end and pole groove (15), inserted block (39) are kept away from on the outer wall of slider (14) one side and have been seted up limit groove (41), limit groove (41) are inside to have fixed block (43) through two compression springs (42) elastic connection, fixed block (43) top surface is close to slider (14) one end and inlay and be equipped with second magnet (44), second magnet (44) are N extremely near slider (14) one end, slider (14) one end is kept away from to fixed block (43) bottom surface is inclined plane structure, fixed slot (62) with fixed block (43) grafting complex are seted up to slider (33) inner wall.

8. The plastic fitting injection molding auxiliary tool according to claim 7, wherein: the novel automatic feeding device is characterized in that a thread seat (45) is coaxially connected to the top surface of the fixing seat (3) in a rotating mode, a thread cover (46) is connected to the thread seat (45) in a threaded mode, a feeding opening (47) is coaxially formed in the position, opposite to the thread seat (45), of the top surface of the fixing seat (3), a rotating shaft (48) is coaxially arranged at the upper end of the feeding opening (47), a plurality of poking plates (49) are fixedly arranged between the outer wall of the rotating shaft (48) and the inner wall of the feeding opening (47) in an annular equidistant structure, and the poking plates (49) are arranged in an inclined structure.

9. The plastic fitting injection molding auxiliary tool according to claim 8, wherein: the novel plastic molding machine is characterized in that a plurality of grooves (50) are formed in the base (2) and the fixing seat (3) at positions corresponding to the outer sides of the first molding grooves (4) in an annular equidistant structure, the middle of each groove (50) is of an arc-shaped structure, the upper open end of each groove (50) located on the upper side is communicated with a feeding port (47), the lower open end of each groove (50) located on the lower side is communicated with the lower portion of the corresponding first molding groove (4) located on the lower side, an insertion pipe (51) is connected to the upper open end of each groove (50) located on the lower side, a sealing ring (52) is sleeved at the upper end of the outer wall of each insertion pipe (51) and the lower open end of each groove (50) located on the upper side are in an insertion fit mode, and sealing grooves (53) matched with the sealing rings (52) in a clamping mode are formed in each groove (50) located on the upper side.

10. The plastic fitting injection molding auxiliary tool according to claim 1, wherein: the support (1) is fixedly connected with a plurality of landing legs (55) by spacing ring (54), spacing ring (54) inner wall and base (2) outer wall sliding contact, landing leg (55) inner wall offer with ring (19) normal running fit's supporting groove (56), sleeve (11) are made by the material that the thermal conductivity is good, sleeve (11) circumference outer wall lower extreme communicates with each other with the inside part of first shaping groove (4) that is located the downside, piston plate (12) and sleeve (11) inner wall frictional contact, piston plate (12) bottom surface coaxial fixedly connected with montant (57), montant (57) and movable rod (10) swivelling joint, a plurality of spouts (58) have been seted up to movable rod (10) outer wall, inside position sliding connection of spout (58) relative swivel (22) has slider (59), slider (59) are fixed with swivel (22) inner wall connection, second shaping groove (63) have been seted up in supporting shoe (5), peg graft groove (64) have been seted up on supporting shoe (5) bottom surface and sleeve (11) bottom surface.

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