CN221562086U - Injection mold with internal thread injection molding - Google Patents

Abstract

The utility model provides an injection mold with an internal thread injection molding part, which comprises a movable mold assembly, wherein the movable mold assembly comprises a front side plate, a threaded rod, screws, a servo motor, a threaded cylinder, four connecting rods, an oblique deflector rod, four deflector blocks and a first mold core, the threaded rod penetrates through the center of the front surface of the front side plate, and the outer side of the center of the front surface of the front side plate is fixedly connected with the servo motor through a plurality of screws. According to the utility model, the four second mold cores are close to the inner side and are separated, so that the four second mold cores are separated, the four shifting blocks are shifted by the oblique shifting rod to move inwards simultaneously, and the four second mold cores are moved out of the first mold cores, so that the first mold cores on the four shifting blocks move inwards to separate the four first mold cores, the rear side plate is pushed to move backwards by the starting cylinder, so that the fixed mold is driven to move backwards to separate an injection molding product from the fixed mold, and the automatic separation is completed.

Description

Injection mold with internal thread injection molding

Technical Field

The utility model relates to the technical field of injection molds, in particular to an injection mold with an internal thread injection molding part.

Background

The injection mold is a tool for producing plastic products; is also a tool for endowing plastic products with complete structure and precise dimensions. Injection molding is a process used in mass production of parts of complex shape. The method specifically comprises the steps of injecting heated and melted plastic into a die cavity under high pressure by an injection molding machine, cooling and solidifying to obtain a formed product, wherein the injection molding die is divided into a thermosetting plastic die and a thermoplastic plastic die according to the forming characteristics;

The existing injection mold with the internal thread injection molding piece is inconvenient to separate from the injection molding piece after injection molding, and the demolding is time-consuming and labor-consuming, is low in demolding efficiency and cannot realize automatic demolding, so that the injection mold with the internal thread injection molding piece is provided.

Disclosure of utility model

In view of the foregoing, it is desirable to provide an injection mold with an internally threaded injection molding that solves or alleviates the technical problems of the prior art, and at least provides an advantageous option.

The technical scheme of the embodiment of the utility model is realized as follows: an injection mold with an internal thread injection molding part comprises a movable mold assembly, wherein the movable mold assembly comprises a front side plate, a threaded rod, a screw, a servo motor, a threaded cylinder, four connecting rods, an oblique deflector rod, four deflector blocks, a deflector hole and a first mold core;

The utility model discloses a die, including front side board, screw rod, four are run through in the front surface center department of front side board, a plurality of screw fixedly connected with servo motor are passed through in the front surface center department outside of front side board, the front surface fixedly connected with of screw rod is in servo motor's input, the lateral wall threaded connection of screw rod has a screw barrel, the lateral wall of screw barrel winds the one end of outer wall fixedly connected with four connecting rods, four the equal fixedly connected with slant driving lever of the other end of connecting rod, four the front surface center department of driving block has all seted up the hole of dialling, lateral wall sliding connection in the inside wall of hole of dialling of slant driving lever, four the equal fixedly connected with first mold core of angle that is close to of driving block.

Further preferably, the rear surface fixedly connected with connecting block of screw thread section of thick bamboo, the spacing groove has all been seted up at upper surface middle part, lower surface middle part and both sides middle part of connecting block, four the equal sliding connection of inside wall of spacing groove has the slider, four the equal fixedly connected with butt joint piece of rear surface of slider, four the equal fixedly connected with second mold core of one side that is close to mutually of butt joint piece, the equal fixedly connected with U-shaped backup pad in the outside that upper surface, lower surface and both sides of connecting block are close to the spacing groove, the interior roof fixedly connected with spring of U-shaped backup pad, the other end fixedly connected with top of slider of spring.

Further preferably, the four back surfaces of the second mold cores and the four first mold cores are provided with supporting grooves, an electric push-pull rod is fixedly connected to the center of the back surface of the connecting block, the output end of the electric push-pull rod is fixedly connected with a supporting block, and the outer side wall of the supporting block is slidably connected to the inner side wall of the supporting grooves.

Further preferably, the outer side wall of the first mold core is slidably connected to the outer side wall of the second mold core.

Further preferably, four corners of the rear surface of the front side plate are fixedly connected with limiting rods, one corner, away from each other, of the front surface of the shifting block is provided with a sliding groove, the rear part of the outer wall of the limiting rod is slidably connected to the inner side wall of the sliding groove, the outer side wall of the limiting rod is close to the front part and the rear part of the sliding groove and is fixedly connected with limiting rings, and the front surface and the rear surface of the shifting block are close to one surface, close to each other, of the two limiting rings.

Further preferably, the middle parts of two sides of the rear surface of the front side plate are fixedly connected with air cylinders, the output ends of the air cylinders are fixedly connected with rear side plates, the middle parts of the front surface of the rear side plates are fixedly connected with fixed dies, the front surfaces of the fixed dies are attached to the rear surfaces of the four shifting blocks, and the first die core and the second die core are arranged in the fixed dies.

Further preferably, the four corners of the rear surface of the front side plate are fixedly connected with limiting slide bars near the outer sides of the limiting rods, sliding holes are formed in the four corners of the front surface of the rear side plate, and the inner side walls of the sliding holes are slidably connected to the rear parts of the outer side walls of the limiting slide bars.

Further preferably, the center of the rear surface of the fixed mold and the center of the front surface of the rear side plate are both provided with pouring gates.

By adopting the technical scheme, the embodiment of the utility model has the following advantages:

According to the utility model, the four second mold cores are close to the inner side and are separated, so that the four second mold cores are separated, the four shifting blocks are shifted by the oblique shifting rod to move inwards simultaneously, and the four second mold cores are moved out of the first mold cores, so that the first mold cores on the four shifting blocks move inwards to separate the four first mold cores, the rear side plate is pushed to move backwards by the starting cylinder, so that the fixed mold is driven to move backwards to separate an injection molding product from the fixed mold, and the automatic separation is completed.

The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present utility model will become apparent by reference to the drawings and the following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a view angle block diagram of the present utility model;

FIG. 2 is a diagram of an angled lever and dial block configuration of the present utility model;

FIG. 3 is a block diagram of the cylinder and rear side plate of the present utility model;

FIG. 4 is a block diagram of a first mold core and a second mold core of the present utility model;

FIG. 5 is a diagram showing the construction of the electric push-pull rod and the support block of the present utility model.

Reference numerals: 1. a movable mold assembly; 11. a front side plate; 12. a threaded rod; 13. a screw; 14. a servo motor; 15. a thread cylinder; 16. a connecting rod; 17. an oblique deflector rod; 18. a shifting block; 19. hole pulling; 20. a first mold core; 21. a connecting block; 22. a limit groove; 23. a slide block; 24. a butt joint block; 25. a second mold core; 26. a U-shaped support plate; 27. a spring; 28. a support groove; 29. an electric push-pull rod; 30. a support block; 31. a limit rod; 32. a chute; 33. a limiting ring; 34. a cylinder; 35. a rear side plate; 36. a fixed mold; 37. a limit slide bar; 38. a slide hole; 39. gate opening.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-5, an embodiment of the present utility model provides an injection mold with an internal thread injection molding part, which comprises a movable mold assembly 1, wherein the movable mold assembly 1 comprises a front side plate 11, a threaded rod 12, a screw 13, a servo motor 14, a threaded cylinder 15, four connecting rods 16, an oblique deflector rod 17, four deflector blocks 18, a deflector hole 19 and a first mold core 20;

The center of the front surface of the front side plate 11 is penetrated with a threaded rod 12, the outer side of the center of the front surface of the front side plate 11 is fixedly connected with a servo motor 14 through a plurality of screws 13, the front surface of the threaded rod 12 is fixedly connected with the input end of the servo motor 14, the outer side wall of the threaded rod 12 is in threaded connection with a threaded cylinder 15, the outer side wall of the threaded cylinder 15 is fixedly connected with one ends of four connecting rods 16 around the outer wall, the other ends of the four connecting rods 16 are fixedly connected with slant deflector rods 17, the centers of the front surfaces of four deflector blocks 18 are provided with deflector holes 19, the outer side wall of the slant deflector rods 17 is in sliding connection with the inner side wall of the deflector holes 19, and one corner, close to each other, of the four deflector blocks 18 is fixedly connected with a first mold core 20.

In one embodiment, the specific: the rear surface fixedly connected with connecting block 21 of screw section of thick bamboo 15, spacing groove 22 has all been seted up at upper surface middle part of connecting block 21, lower surface middle part and both sides middle part, the equal sliding connection of inside wall in four spacing grooves 22 has slider 23, the equal fixedly connected with butt joint piece 24 of rear surface of four slider 23, the equal fixedly connected with second mold core 25 of one side that is close to of four butt joint pieces 24, the upper surface of connecting block 21, the outside that lower surface and both sides are close to spacing groove 22 is all fixedly connected with U-shaped backup pad 26, the interior roof fixedly connected with spring 27 of U-shaped backup pad 26, the other end fixedly connected with of spring 27 is at the top of slider 23, promote slider 23 simultaneously and slide in spacing groove 22 through four springs 27, thereby drive connecting block 21 and remove, and then drive four second mold cores 25 and be close to the removal mutually.

In one embodiment, the specific: the back surfaces of the four second mold cores 25 and the four first mold cores 20 are respectively provided with a supporting groove 28, the center of the back surface of the connecting block 21 is fixedly connected with an electric push-pull rod 29, the output end of the electric push-pull rod 29 is fixedly connected with a supporting block 30, the outer side wall of the supporting block 30 is slidably connected with the inner side wall of the supporting groove 28, the supporting block 30 is pushed by the electric push-pull rod 29 to slide into the supporting groove 28, so that the four second mold cores 25 are simultaneously pushed outwards, the four second mold cores 25 are far away from each other and are matched with the first mold cores 20 to form an inner mold core, and the outer side walls of the first mold cores 20 and the second mold cores 25 are respectively provided with threads.

In one embodiment, the specific: the outer side wall of the first mold core 20 is slidably connected to the outer side wall of the second mold core 25, and is slidably matched with the first mold core 20 and the second mold core 25, so that the first mold core 20 and the second mold core 25 form an inner mold core.

In one embodiment, the specific: the four corners of the rear surface of the front side plate 11 are fixedly connected with limiting rods 31, one corner, far away from the front surface, of each of four shifting blocks 18 is provided with a sliding groove 32, the rear parts of the outer walls of the limiting rods 31 are slidably connected to the inner side walls of the sliding grooves 32, the outer side walls of the limiting rods 31 are close to the front parts and the rear parts of the sliding grooves 32, limiting rings 33 are fixedly connected to the outer side walls of the shifting blocks 18, the front surfaces and the rear surfaces of the shifting blocks 18 are close to the outer sides of the sliding grooves 32 and are slidably connected to one side, close to the two limiting rings 33, of each shifting block 18, and the sliding grooves 32 on the shifting blocks 18 slide on the outer walls of the limiting rods 31.

In one embodiment, the specific: the middle parts of the two sides of the rear surface of the front side plate 11 are fixedly connected with air cylinders 34, the output ends of the two air cylinders 34 are fixedly connected with a rear side plate 35, the middle part of the front surface of the rear side plate 35 is fixedly connected with a fixed die 36, the front surface of the fixed die 36 is connected with the rear surfaces of the four shifting blocks 18 in a fitting mode, the first die core 20 and the second die core 25 are arranged in the fixed die 36, and a die cavity is formed between an inner die core formed by the first die core 20 and the second die core 25 and the fixed die 36, so that injection molding of an internal thread injection molding part is facilitated, the rear side plate 35 is pushed to move by the air cylinders 34, the fixed die 36 is driven to move, and demolding is facilitated.

In one embodiment, the specific: the four corners of the rear surface of the front side plate 11 are fixedly connected with limiting slide bars 37 near the outer sides of the limiting rods 31, the four corners of the front surface of the rear side plate 35 are provided with sliding holes 38, the inner side walls of the sliding holes 38 are slidably connected to the rear parts of the outer side walls of the limiting slide bars 37, and the sliding holes 38 on the rear side plate 35 slide along the limiting slide bars 37, so that the rear side plate 35 is limited.

In one embodiment, the specific: the gate 39 is formed at the center of the rear surface of the fixed mold 36 and the center of the front surface of the rear side plate 35, and raw materials are injected into a mold cavity formed between the inner mold core composed of the first mold core 20 and the second mold core 25 and the fixed mold 36 through the gate 39, so that an internal thread injection molding piece is conveniently manufactured.

The utility model works when in work: before injection molding, the servo motor 14 is started to drive the threaded rod 12 to rotate, thereby pushing the threaded cylinder 15 to move backwards, further driving the four connecting rods 16 to move backwards, pushing the four oblique deflector rods 17 to move backwards through the connecting rods 16, simultaneously sliding along the oblique deflector rods 17 through the deflector holes 19 on the four deflector blocks 18, driving the four deflector blocks 18 to simultaneously move outwards, driving the four first mold cores 20 to move outwards, simultaneously pushing the connecting block 21 to move backwards through the threaded cylinder 15, enabling the four second mold cores 25 on the connecting block 21 to be inserted into the four first mold cores 20, starting the electric push-pull rod 29, pushing the supporting block 30 to move, pushing the four second mold cores 25 to move outwards, combining with the four first mold cores 20 to form an inner mold core, enabling the starting cylinder 34 to pull the rear side plate 35 to move forwards, enabling the fixed mold 36 on the rear side plate 35 to be sleeved on the inner mold cores and be in sealing fit with the four deflector blocks 18, so that the mold cavity formed between the inner mold core and the fixed mold 36 formed by the first mold core 20 and the second mold core 25 is filled with raw materials through the sprue gate 39, so that injection molding is completed after molding and cooling, the supporting block 30 is pulled to slide out of the supporting groove 28 by starting the electric push-pull rod 29 during demolding, meanwhile, the sliding block 23 is simultaneously pushed to slide in the limiting groove 22 by four springs 27, so that the connecting block 21 is driven to move, the four second mold cores 25 are driven to move close to each other, the four second mold cores 25 are demolded, the servo motor 14 is started to drive the threaded rod 12 to rotate reversely, so that the threaded cylinder 15 is driven to move forwards, the four connecting rods 16 and the connecting block 21 are driven to move forwards, the oblique deflector rod 17 is pulled to move forwards by the connecting rods 16, thus, the four shifting blocks 18 are shifted to move inwards simultaneously, the four second mold cores 25 are pulled to move out of the first mold cores 20 through the forward movement of the connecting blocks 21, the four first mold cores 20 are driven to move inwards through the four shifting blocks 18 to enable the four first mold cores 20 to be demolded, the rear side plate 35 is pushed to move backwards through the starting cylinder 34, the fixed mold 36 is driven to move backwards to enable injection molding products to drop from the fixed mold 36, and demolding is completed.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that various changes and substitutions are possible within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (8)

1. An injection mold with internal thread injection molding, characterized in that: the movable die assembly (1) comprises a front side plate (11), a threaded rod (12), screws (13), a servo motor (14), a threaded cylinder (15), four connecting rods (16), an oblique deflector rod (17), four deflector blocks (18), a deflector hole (19) and a first die core (20);

The utility model discloses a die-casting die for the plastic molding machine, including front side board (11), screw rod (12) are run through in the front surface center department of front side board (11), the front surface center department outside of front side board (11) is through a plurality of screw (13) fixedly connected with servo motor (14), the front surface fixedly connected with of screw rod (12) is in the input of servo motor (14), the lateral wall threaded connection of screw rod (12) has screw thread section of thick bamboo (15), the lateral wall of screw thread section of thick bamboo (15) winds the one end of outer wall fixedly connected with four connecting rods (16), four the equal fixedly connected with slant driving lever (17) of the other end of connecting rod (16), four the front surface center department of driving lever (18) has all seted up and has been dialled hole (19), the lateral wall sliding connection of slant driving lever (17) is in the inside wall of dialling hole (19), four the equal fixedly connected with first mold core (20) in the corner that is close to each other of driving lever (18).

2. An injection mold having an internally threaded injection molding according to claim 1, wherein: the utility model discloses a screw thread section of thick bamboo (15) rear surface fixedly connected with connecting block (21), spacing groove (22) have all been seted up at upper surface middle part, lower surface middle part and both sides middle part of connecting block (21), four equal sliding connection of inside wall in spacing groove (22) has slider (23), four equal fixedly connected with butt joint piece (24) of rear surface of slider (23), four equal fixedly connected with second mold core (25) of one side that is close to mutually of butt joint piece (24), the equal fixedly connected with U-shaped backup pad (26) in the outside that upper surface, lower surface and both sides of connecting block (21) are close to spacing groove (22), the interior roof fixedly connected with spring (27) of U-shaped backup pad (26), the other end fixedly connected with of spring (27) is in the top of slider (23).

3. An injection mold having an internally threaded injection molding according to claim 2, wherein: the four back surfaces of the second mold cores (25) and the four first mold cores (20) are respectively provided with a supporting groove (28), an electric push-pull rod (29) is fixedly connected to the center of the back surface of the connecting block (21), a supporting block (30) is fixedly connected to the output end of the electric push-pull rod (29), and the outer side wall of the supporting block (30) is slidably connected to the inner side wall of the supporting groove (28).

4. An injection mold having an internally threaded injection molding according to claim 3, wherein: the outer side wall of the first mold core (20) is connected with the outer side wall of the second mold core (25) in a sliding mode.

5. An injection mold having an internally threaded injection molding according to claim 1, wherein: the four sides of the rear surface of the front side plate (11) are fixedly connected with limiting rods (31), sliding grooves (32) are formed in corners, far away from the front surface of the shifting block (18), of the four sides, the rear parts of the outer walls of the limiting rods (31) are slidably connected to the inner side walls of the sliding grooves (32), limiting rings (33) are fixedly connected to the outer side walls of the limiting rods (31) close to the front parts and the rear parts of the sliding grooves (32), and the front surfaces and the rear surfaces of the shifting block (18) are slidably connected to the surfaces, close to the sliding grooves (32), of the two limiting rings (33).

6. An injection mold having an internally threaded injection molding according to claim 5, wherein: the novel plastic mold is characterized in that air cylinders (34) are fixedly connected to the middle parts of two sides of the rear surface of the front side plate (11), the output ends of the air cylinders (34) are fixedly connected with rear side plates (35), a fixed mold (36) is fixedly connected to the middle part of the front surface of the rear side plate (35), the front surface of the fixed mold (36) is attached to the rear surfaces of four shifting blocks (18), and the first mold core (20) and the second mold core (25) are arranged in the fixed mold (36).

7. An injection mold having an internally threaded injection molding according to claim 6, wherein: the four corners of the rear surface of the front side plate (11) are close to the outer side of the limiting rod (31) and fixedly connected with limiting slide rods (37), sliding holes (38) are formed in the four corners of the front surface of the rear side plate (35), and the inner side walls of the sliding holes (38) are slidably connected to the rear parts of the outer side walls of the limiting slide rods (37).

8. An injection mold having an internally threaded injection molding according to claim 6, wherein: the center of the rear surface of the fixed die (36) and the center of the front surface of the rear side plate (35) are both provided with a gate opening (39).