A hydraulic motor synchronous drive 12 thread core-pulling mold and driving method

Abstract

The application discloses a kind of hydraulic motor synchronous drive 12 thread core-pulling mould and driving method, first mould body part, second mould body part and thread core-pulling assembly form mould cavity between;By feeding part, raw material is introduced into mould cavity, and part is formed in mould cavity, and 12 thread inner holes are synchronously formed by thread core-pulling assembly;Needle part acts, and second mould body part moves position along mould base, and second mould body part is separated from first mould body part, and the partial linkage of second mould body part thread core-pulling assembly is separated from thread inner hole, and needle part ejects after forming part from mould cavity;So it overcomes the technical problem that 12 thread inner holes need to be synchronously core-pulling formed.

Description

Technical Field

[0001] This invention relates to the field of threaded core-pulling mold technology, specifically to a hydraulic motor synchronously driving 12 threaded core-pulling molds and a driving method thereof. Background Technology

[0002] Molds are various molds and tools used in industrial production to obtain desired products through injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. In short, molds are tools used to make shaped objects. These tools are composed of various parts, and different molds are composed of different parts. They mainly achieve the processing of the shape of the object by changing the physical state of the material being molded.

[0003] When performing threaded core pulling on some products, threaded core pulling molds are required, especially for simultaneously pulling and forming 12 threaded inner holes. Traditional molds are difficult to achieve this, so a hydraulic motor is needed to synchronously drive 12 threaded core pulling molds and a driving method. Summary of the Invention

[0004] To address the aforementioned shortcomings in related technologies, the aim is to provide a hydraulic motor-driven synchronous core-pulling mold for 12 threaded cores and a driving method therefor, thereby solving the technical problem of simultaneously forming the inner holes of 12 threaded cores in related technologies.

[0005] The technical solution to achieve the objective is: a hydraulic motor synchronously driving 12 threaded core-pulling molds, comprising:

[0006] Mold base;

[0007] The first mold body is connected to the mold base;

[0008] The second mold part is connected to the mold base and moves along the mold base to contact or separate from the first mold part;

[0009] Six threaded core-pulling assemblies are spaced apart on the mold base and the first mold body, forming a mold cavity between the first mold body and the second mold body. The mold cavity is used to form a part. The threaded core-pulling assemblies simultaneously pull 12 threaded inner holes on the part.

[0010] The feeding section is connected to the second mold body and communicates with the mold cavity, and is used to introduce raw materials into the mold cavity;

[0011] The ejector pin is connected between the mold base and the first mold body to push the second mold body to open. The second mold body, in conjunction with the threaded core-pulling assembly, partially disengages the part. The ejector pin then ejects the formed part from the mold cavity.

[0012] Furthermore: the mold base includes: a first plate; two side support blocks symmetrically connected to the first plate and perpendicularly arranged between them; four hollow guide pillars spaced apart and connected to the first plate, with two hollow guide pillars forming a group, one group of hollow guide pillars extending through one of the side support blocks, and the hollow guide pillars being inserted into the first mold body; four positioning pins spaced apart and connected to the first plate, with two positioning pins forming a group, one group of positioning pins extending through one of the side support blocks, the positioning pins being spaced apart from the hollow guide pillars, used for positioning the first mold body; and at least four threaded pins, one-to-one connected to the hollow guide pillars, connecting the hollow guide pillars to the first mold body.

[0013] Furthermore, the first mold body includes: a first mold body, which passes through the hollow guide post and the positioning pin; a first mold core, which is connected to a first groove on the first mold body; a second mold core, which is connected to the first mold core; and a first cooling part, which is disposed on the first mold body and connected to the second mold core.

[0014] Furthermore, the second mold body includes: a second mold body; four sliding guide pillars, spaced apart and connected to the second mold body, and slidably connected one-to-one with the hollow guide pillars; a third mold core, connected to the second mold body, and the third mold core communicating with the feeding part; a second cooling part, connected to the second mold body; and six shovel-based wear-resistant plates, spaced apart and connected to the second mold body, for one-to-one contact with the threaded core-pulling assembly.

[0015] Furthermore: the threaded core-pulling assembly includes: a drive unit connected to the mold base and the first mold body; a gearbox connected to the outer wall of the first mold body, partially rotated by the drive unit; two stops symmetrically connected to the second groove on the first mold body, forming a first sliding groove between them; six pads connected one-to-one in the second groove, each pad having a first through groove aligned and communicating with the second through groove on the first mold body; a slider slidably connected to the first sliding groove and the second sliding groove on the second mold body; a slider insert, one side connected to the slider, the other side forming the mold cavity with the first mold body and the second mold body; and two core-pulling parts. The components are arranged at intervals. One end of the core-pulling part is connected to the gearbox, and the other end extends through the slider and the slider insert for core-pulling the threaded inner hole. Two inclined guide posts are symmetrically inserted through the slider and slidably connected to it. The inclined guide posts are also connected to the second mold body and move together with the second mold body, thus moving the slider along the first and second slide grooves. A sliding assist part is connected between the gearbox and the slider to assist the slider in moving. A third cooling part is connected to the first mold body, extends through the second and first through grooves, and is connected to the slider and the slider insert for cooling the slider and the slider insert.

[0016] Furthermore, the gearbox includes: a first housing connected to the outer wall of the first mold part; a second housing connected to the first housing, having a hollow space between them; a drive gear shaft connected to the first housing, disposed in the hollow space, with one end connected to the drive part; a first driven gear shaft connected to the first housing and the second housing, disposed in the hollow space, and meshing with the drive gear shaft; and a second driven gear shaft connected to the first housing and the second housing, disposed in the hollow space, meshing with the first driven gear shaft, and the second driven gear shaft meshing with the core-pulling part.

[0017] The core-pulling part includes: a third driven gear shaft connected to the second housing and meshing with the second driven gear shaft, with the third driven gear shaft extending out of the second housing; a core-pulling shaft, one end of which is inserted into and movably connected to the third driven gear shaft, and the other end of which extends out of the slider and the slider insert, for pulling the core from the threaded inner hole; a first bearing connected to the first stepped through hole on the slider to support the core-pulling shaft; a first spring sleeved on the core-pulling shaft and disposed at the first stepped through hole; and a retaining ring connected to the core-pulling shaft to limit the first spring.

[0018] The sliding assist part includes: an assist rod, one end of which passes through the second stepped through hole on the first housing and the second housing, and the other end of which is connected to the slider; and a second spring, which is sleeved on the assist rod and disposed at the second stepped through hole.

[0019] Furthermore, the feeding section includes: a second plate connected to the second mold body; a heat insulation plate connected to the second plate; and a positioning ring connected to the second plate, surrounded by the heat insulation plate, and the positioning ring being higher than the heat insulation plate.

[0020] Further: The ejector pin portion includes: at least four pads, spaced apart and connected to the first plate; four first guide support pillars, spaced apart and connected to the first plate, with one end of each first guide support pillar extending out of the first plate and inserted into the first mold body; four second guide support pillars, spaced apart and connected to the first plate, spaced apart from the first guide support pillars, with one end of each second guide support pillar extending out of the first plate and abutting against the first mold body; a third plate, fitted onto the first and second guide support pillars, contacting the pads; a fourth plate, fitted onto the first and second guide support pillars, connected to the third plate; four guide sleeves, connected to the third and fourth plates, slidingly connected one-to-one with the first guide support pillars; and two ejector rods, one end of which is connected to the... On the fourth plate, one end is positioned between the third plate and the fourth plate, and the other end extends out of the first mold body and contacts the second mold body; two third springs, one pair, are fitted onto the ejector rod and positioned between the first mold body and the fourth plate; six ejector pins are spaced apart, one end of each ejector pin is connected to the fourth plate and positioned between the third plate and the fourth plate, and the other end passes through the first mold core; a linear drive component is connected to the first plate and is used to move the third plate, the fourth plate, and the guide sleeve along the first guide support column and the second guide support column. When the third springs are compressed, the ejector rod pushes the second mold body part to separate from the first mold body part, and the ejector pins eject the molded part from the mold cavity; and at least two spacers are spaced apart and connected to the fourth plate.

[0021] Furthermore, it also includes: a protective frame connected to the side wall of the mold base and the second mold part; four protective rods, spaced apart and opposite to the protective frame, two of the protective rods connected to the side wall of the mold base and two of the protective rods connected to the side wall of the second mold part; and two connecting blocks, opposite to each other, connecting the first mold part and the second mold part.

[0022] A method for synchronously driving 12 threaded core-pulling dies with hydraulic motors includes:

[0023] The mold cavity is formed between the first mold part, the second mold part, and the threaded core-pulling assembly;

[0024] Raw material is introduced into the mold cavity through the feeding section, and the part is formed in the mold cavity. The 12 threaded inner holes are simultaneously formed by the threaded core-pulling assembly.

[0025] The ejector pin moves, pushing the second mold body to move along the mold base. The second mold body separates from the first mold body. The second mold body, in conjunction with a portion of the threaded core-pulling assembly, disengages from the threaded inner hole. The ejector pin then ejects the formed part from the mold cavity.

[0026] The above technical solution has the following beneficial effects: A hydraulic motor synchronously drives a 12-threaded core-pulling mold and driving method, compared with related technologies, is provided with a mold base, a first mold body, a second mold body, a threaded core-pulling assembly, a feeding part, and an ejector pin part; a mold cavity is formed between the first mold body, the second mold body, and the threaded core-pulling assembly; raw materials are introduced into the mold cavity by the feeding part, forming parts in the mold cavity, and the 12 threaded inner holes are synchronously formed by the threaded core-pulling assembly; the ejector pin part moves, pushing the second mold body part to move along the mold base, the second mold body part separates from the first mold body part, and the second mold body part is partially disengaged from the threaded inner hole by the threaded core-pulling assembly, and the ejector pin part ejects the formed parts from the mold cavity; it realizes the synchronous core-pulling forming of 12 threaded inner holes, and the forming quality is relatively good; thus overcoming the technical problem of needing to synchronously form 12 threaded inner holes, and achieving the technical effect of being able to synchronously form 12 threaded inner holes. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall assembly structure;

[0028] Figure 2 for Figure 1 Top view;

[0029] Figure 3 for Figure 2 AA section view in the middle;

[0030] Figure 4 for Figure 2 BB section view in the middle;

[0031] Figure 5 for Figure 1 Exploded view with the protective frame, protective rod, and connecting block removed;

[0032] Figure 6 This is a schematic diagram of the mold base structure;

[0033] Figure 7This is an exploded view of the first module.

[0034] Figure 8 This is an exploded view of the second phantom section;

[0035] Figure 9 A partial sectional view of the first mold section, the second mold section, and the threaded core-pulling assembly;

[0036] Figure 10 This is a partial sectional view of the threaded core-pulling assembly;

[0037] Figure 11 for Figure 4 A magnified view of part C in the diagram;

[0038] Figure 12 This is a schematic diagram of the ejector pin section;

[0039] Figure 13 This is a schematic diagram of the structure of the molded part;

[0040] In the diagram: 10. Mold base, 11. First plate, 12. Side support block, 13. Hollow guide post, 14. Locating pin, 15. Threaded pin, 20. First mold body, 21. First mold body, 21-1. First groove, 21-2. Second groove, 21-3. Second through groove, 22. First mold core, 23. Second mold core, 24. First cooling section, 30. Second mold body, 31. Second mold body, 30-1. Second slide, 3 2. Sliding guide post; 33. Third mold core; 34. Second cooling section; 35. Shovel base wear-resistant plate; 40. Threaded core-pulling assembly; 41. Drive unit; 42. Gearbox; 42-1. First housing; 42-2. Second housing; 42-3. Drive gear shaft; 42-4. First driven gear shaft; 42-5. Second driven gear shaft; 43. Stop block; 44. Pad block; 44-1. First through slot; 45. Slider; 45-1. First stage 46. ​​Through hole; 47. Slider insert; 47. Core-pulling part; 47-1. Third driven gear shaft; 47-2. Core-pulling shaft; 47-21. Stepped shaft section; 47-22. Square shaft section; 47-23. Threaded section; 47-3. First bearing; 47-4. First spring; 47-5. Retaining ring; 48. Inclined guide post; 49. Sliding assist part; 49-1. Assist rod; 49-2. Second spring; 410. Third cooling part; 50. Feeding part. 51. Second plate, 52. Heat insulation plate, 53. Positioning ring, 60. Ejector pin part, 61. Pad, 62. First guide support column, 63. Second guide support column, 64. Third plate, 65. Fourth plate, 66. Guide sleeve, 67. Ejector rod, 68. Third spring, 69. Ejector pin, 610. Linear drive component, 620. Spacer block, 70. Protective frame, 80. Protective rod, 90. Connecting block, 100. Part, 101. Threaded inner hole. Detailed Implementation

[0041] To make the content easier to understand, the following detailed description is provided with reference to specific embodiments and accompanying drawings;

[0042] A hydraulic motor synchronously drives a 12-threaded core-pulling mold and a driving method, which solves the technical problem of simultaneously forming the inner holes of 12 threads in related technologies, and achieves the positive effect of simultaneously forming the inner holes of 12 threads. The overall idea is as follows:

[0043] One implementation method:

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 13 As shown; a hydraulic motor synchronously drives 12 threaded core-pulling dies and a driving method thereof, wherein the hydraulic motor synchronously drives 12 threaded core-pulling dies, comprising:

[0045] Mold base 10;

[0046] The first mold part 20 is connected to the mold base 10;

[0047] The second mold part 30 is connected to the mold base 10 and moves along the mold base 10 to contact or separate from the first mold part 20;

[0048] Six threaded core-pulling assemblies 40 are spaced apart on the mold base 10 and the first mold body 20, forming a mold cavity between the first mold body 20 and the second mold body 30. The mold cavity is used to form part 100. The threaded core-pulling assemblies 40 simultaneously pull the cores of 12 threaded inner holes 101 on part 100.

[0049] The feeding section 50 is connected to the second mold body section 30 and communicates with the mold cavity, and is used to introduce raw materials into the mold cavity;

[0050] And an ejector pin 60, connected between the mold base 10 and the first mold body 20, for pushing the second mold body 30 to open, the second mold body 30, in conjunction with the threaded core-pulling assembly 40, partially disengages the part 100, and the ejector pin 60 ejects the formed part 100 from the mold cavity;

[0051] The method for synchronously driving 12 threaded core-pulling dies with hydraulic motors includes:

[0052] The mold cavity is formed between the first mold part 20, the second mold part 30, and the threaded core-pulling assembly 40;

[0053] Raw material is introduced into the mold cavity by the feeding part 50, and the part 100 is formed in the mold cavity. The 12 threaded inner holes 101 are simultaneously formed by the threaded core pulling assembly 40.

[0054] The ejector pin 60 is activated, pushing the second mold body 30 to move along the mold base 10. The second mold body 30 separates from the first mold body 20. The second mold body 30 is linked to a portion of the threaded core-pulling assembly 40 and disengages from the threaded inner hole 101. The ejector pin 60 then ejects the molded part 100 from the mold cavity.

[0055] It achieved simultaneous core-pulling forming of 12 threaded inner holes 101, with relatively good forming quality;

[0056] Another implementation method:

[0057] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown; in implementation, the mold base 10 includes: a first plate 11; two side support blocks 12, symmetrically connected to the first plate 11 and perpendicularly arranged between them; four hollow guide pillars 13, spaced apart and connected to the first plate 11, with two hollow guide pillars 13 forming a group, one side support block 12 extending through one group of hollow guide pillars 13, and the hollow guide pillars 13 being inserted into the first mold body 20; four positioning pins 14, spaced apart and connected to the first plate 11, with two positioning pins 14 forming a group, one side support block 12 extending through one group of positioning pins 14, the positioning pins 14 being spaced apart from the hollow guide pillars 13, used to position the first mold body 20; and at least four threaded pins 15, one-to-one connected to the hollow guide pillars 13, connecting the hollow guide pillars 13 to the first mold body 20;

[0058] The first plate 11 is a square plate structure; the side support block 12 is a rectangular block structure, connected to the first plate 11 by hexagonal socket head cap screws; the hollow guide post 13 is cylindrical in shape with a stepped through hole in the middle, and is tightly fitted with the first plate 11 and the side support block 12, providing support and guidance, which facilitates the movement of the second mold part 30; the positioning pin 14 is tightly fitted with the first plate 11 and the side support block 12, used to position the first mold part 20, ensuring the positioning accuracy of the first mold part 20 and making installation more convenient; the threaded pin 15 is threadedly connected to the hollow guide post 13, pressing down the first mold part 20, making the connection between the first mold part 20 and the hollow guide post 13 more reliable;

[0059] Another implementation method:

[0060] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 9 As shown; in implementation, the first mold body 20 includes: a first mold body 21, which passes through the hollow guide post 13 and the positioning pin 14; a first mold core 22, which is connected to the first groove 21-1 on the first mold body 21; a second mold core 23, which is connected to the first mold core 22; and a first cooling part 24, which is disposed on the first mold body 21 and connected to the second mold core 23.

[0061] The first mold body 21 is a block structure, which is machined by a forging billet machine;

[0062] The first groove 21-1 is a square groove; the second groove 21-2 is a stepped groove; the second through groove 21-3 is an oblong through groove, which facilitates the passage of pipes on the third cooling section 410.

[0063] The first mold core 22 includes: a square block that mates with the first groove 21-1 and is connected to the first mold body 21 by an internal hexagonal bolt; and a hexagonal protrusion that is connected to the square block and contacts and matches the slider insert 46; the square block and the hexagonal protrusion have a stepped through hole at the middle position, and the square block and the hexagonal protrusion are penetrated by an ejector pin 69;

[0064] The second mold core 23 has a stepped structure and is inserted into the stepped through hole. One end protrudes through the stepped through hole and protrudes outside the hexagonal protrusion. The second mold core 23 has a blind hole in the middle, and the blind hole is connected to part of the pipes on the first cooling part 24.

[0065] The first cooling section 24 includes: a first water inlet connected to the first mold body 21; a first water outlet connected to the first mold body 21; and a first water pipe connected between the first water inlet and the first water outlet; the first cooling section 24 is provided for circulating cooling water to cool the first mold body 21, the first mold core 22 and the second mold core 23, which helps to accelerate the cooling and molding speed of the part 100 in the mold cavity;

[0066] Another implementation method:

[0067] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 8 , Figure 9 As shown; in implementation, the second mold body 30 includes: a second mold body 31; four sliding guide pillars 32, spaced apart and connected to the second mold body 31, and slidably connected one-to-one with the hollow guide pillars 13; a third mold core 33, connected to the second mold body 31, and the third mold core 33 communicates with the feeding part 50; a second cooling part 34, connected to the second mold body 31; and six shovel-based wear-resistant plates 35, spaced apart and connected to the second mold body 31, for one-to-one contact with the threaded core-pulling assembly 40;

[0068] The second mold body 31 is a block structure, which is machined by a forging billet machine;

[0069] The sliding guide post 32 is a cylindrical shaft with a stepped outer circle. It is inserted into the second mold body 31. The sliding guide post 32 is used to slide with the hollow guide post 13, so that the second mold body 30 always moves along a straight line. The accuracy of the mold cavity formed between the threaded core assembly 40 and the first mold body 20 is relatively uniform, and the quality of the molded part 100 is relatively uniform.

[0070] The third mold core 33 has a stepped structure and a tapered through hole in the middle. The tapered through hole is connected to the feed part 50. The third mold core 33 is connected to the second mold body 31 by an internal hexagon bolt.

[0071] The second cooling section 34 includes: a second water inlet connected to the second mold body 31; a second water outlet connected to the second mold body 31; and a second water pipe passing through the second mold body 31 and connected between the second water inlet and the second water outlet; the second cooling section 34 is provided to cool the second mold body 31 and the third mold core 33, which helps to accelerate the cooling and molding speed of the part 100 in the mold cavity;

[0072] The shovel base wear-resistant plate 35 has a square plate structure with a U-shaped through groove. The shovel base wear-resistant plate 35 is connected to the second mold body 31 by internal hexagon bolts and can fit with the slider 45 to limit the slider 45.

[0073] Another implementation method:

[0074] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 9 , Figure 10 , Figure 11As shown; in implementation, the threaded core-pulling assembly 40 includes: a drive unit 41 connected to the mold base 10 and the first mold body 20; a gearbox 42 connected to the outer wall of the first mold body 20, partially rotated by the drive unit 41; two stops 43 symmetrically connected to the second groove 21-2 on the first mold body 21, forming a first sliding groove between them; six pads 44 connected one-to-one in the second groove 21-2, each pad 44 having a first through groove 44-1, the first through groove 44-1 being aligned and communicating with the second through groove 21-3 on the first mold body 21; a slider 45 slidably connected to the first sliding groove and the second sliding groove 30-1 on the second mold body 30; a slider insert 46, one side connected to the slider 45, the other side forming the mold cavity with the first mold body 20 and the second mold body 30; and two core-pulling devices. The mold body 20 is divided into three parts: a core-pulling part 47, spaced apart, with one end connected to the gearbox 42 and the other end passing through the slider 45 and the slider insert 46, for pulling the core from the threaded inner hole 101; two oblique guide posts 48, symmetrically passing through the slider 45 and slidably connected to it, and connected to the second mold body 31, moving together with the second mold body 31, thus moving the slider 45 along the first slide groove and the second slide groove 30-1; a sliding assist part 49, connected between the gearbox 42 and the slider 45, for assisting the slider 45 in moving; and a third cooling part 410, connected to the first mold body 20, passing through the second through groove 21-3 and the first through groove 44-1, and connected to the slider 45 and the slider insert 46, for cooling the slider 45 and the slider insert 46.

[0075] The drive unit 41 includes: a hydraulic motor; a fluid passage; and a hydraulic valve; converting hydraulic pressure into rotational force, and the hydraulic motor drives the drive gear shaft 42-3 to rotate; those skilled in the art, after seeing the disclosure, can directly and without doubt know how to set up the drive unit 41 without having to put in creative effort or conduct excessive experimentation.

[0076] The gearbox 42 includes: a first housing 42-1 connected to the outer wall of the first mold part 20; a second housing 42-2 connected to the first housing 42-1, with a hollow space between them; a drive gear shaft 42-3 connected to the first housing 42-1, disposed in the hollow space, with one end connected to the drive part 41; a first driven gear shaft 42-4 connected to the first housing 42-1 and the second housing 42-2, disposed in the hollow space, and meshing with the drive gear shaft 42-3; and a second driven gear shaft 42-5 connected to the first housing 42-1 and the second housing 42-2, disposed in the hollow space, and meshing with the first driven gear shaft 42-4, and the second driven gear shaft 42-5 meshing with the core-pulling part 47;

[0077] The first housing 42-1 and the second housing 42-2 are connected to the first mold body 20 by internal hexagon bolts, which makes installation and disassembly convenient; there is a hollow space between the first housing 42-1 and the second housing 42-2, which is conducive to connecting and arranging the drive gear shaft 42-3, the first driven gear shaft 42-4 and the second driven gear shaft 42-5;

[0078] The drive gear shaft 42-3 includes: a second bearing connected to the second housing 42-2; and a main gear, one end of which is connected to the second bearing and the other end of which is connected to the hydraulic motor;

[0079] The first driven gear shaft 42-4 includes: two third bearings, spaced apart, one connected to the first housing 42-1 and the other connected to the second housing 42-2; a first driven shaft connected between the third bearings; two first snap rings, spaced apart and connected to the first driven shaft to limit the third bearings; and a first gear connected to the first driven shaft and meshing with the main gear.

[0080] The second driven gear shaft 42-5 includes: two fourth bearings, spaced apart, one connected to the first housing 42-1 and the other connected to the second housing 42-2; a second driven shaft connected between the fourth bearings; two second snap rings, spaced apart and connected to the second driven shaft to limit the fourth bearings; and a second gear connected to the second driven shaft and meshing with the first gear.

[0081] The stop block 43 is a rectangular block structure, which is connected to the first mold body 21 by an internal hexagon bolt, and forms a first sliding groove with the second groove 21-2, which is beneficial to limit the slider 45, and the slider 45 moves along the first sliding groove.

[0082] The pad 44 is a square block structure, which is connected to the first mold body 21 by an internal hex bolt. It can not only support the slider 45 so that the slider 45 will not wear the first mold body 21 when it moves along the first groove, thus protecting the first mold body 21, but also has a first through groove 44-1, which is conducive to the passage of the pipes on the third cooling section 410. When the pipes move together with the slider 45, the pipes will not collide and the movement is smoother.

[0083] The slider 45 has a roughly "T" shaped structure with one side wall being a slope. The slope is parallel to the wear-resistant plate 35 of the shovel base. The slider 45 has two oblique through holes, which are slidably connected to the oblique guide post 48. This allows the slider 45 to move along the first groove when the oblique guide post 48 moves.

[0084] The slider insert 46 is connected to the slider 45 on one side by an internal hex bolt, and forms a mold cavity between the first mold body 20 and the second mold body 30 on the other side. The slider insert 46 moves along the first groove together with the slider 45.

[0085] The core-pulling part 47 includes: a third driven gear shaft 47-1, connected to the second housing 42-2 and meshing with the second driven gear shaft 42-5, with the third driven gear shaft 47-1 extending out of the second housing 42-2; a core-pulling shaft 47-2, one end of which is inserted into and movably connected to the third driven gear shaft 47-1, and the other end extending out of the slider 45 and the slider insert 46, for core-pulling the threaded inner hole 101; a first bearing 47-3, connected to the first stepped through hole 45-1 on the slider 45, supporting the core-pulling shaft 47-2; a first spring 47-4, sleeved on the core-pulling shaft 47-2 and disposed at the first stepped through hole 45-1; and a retaining ring 47-5, connected to the core-pulling shaft 47-2, limiting the first spring 47-4;

[0086] The third driven gear shaft 47-1 includes: a fifth bearing connected to the first housing 42-1; a third snap ring connected to the first housing 42-1 and blocking the fifth bearing; a third driven shaft passing through the fifth bearing, with one end disposed in the hollow space and the other end passing through the hollow space and inserted into the core-pulling shaft 47-2; and a third gear connected to one end of the third driven shaft and meshing with the second gear.

[0087] The core-pulling shaft 47-2 includes: a stepped shaft section 47-21, which passes through the slider 45 and the slider insert 46; a square shaft section 47-22, which is connected to one end of the stepped shaft section 47-21 and is slidably connected to a square groove on the other end of the third driven shaft; and a threaded section 47-23, which is connected to the other end of the stepped shaft section 47-21 and is used for core-pulling to form a threaded inner hole 101.

[0088] The first bearing 47-3 is a common structure in the prior art, such as a deep groove ball bearing, used to support the core-pulling shaft 47-2 without affecting the movement position of the core-pulling shaft 47-2;

[0089] The first spring 47-4 is a commonly used structure in the prior art, such as a cylindrical spring;

[0090] The retaining ring 47-5 is connected to the core-pulling shaft 47-2 by bolts, limiting the first spring 47-4 so that the first spring 47-4 is in a compressed state. After the part 100 is formed, the push rod 67 pushes the second mold part 30 to separate from the first mold part 20. The second mold part 30 moves together with the inclined guide post 48. Under the action of the rebound force of the first spring 47-4, the core-pulling shaft 47-2 moves along the square groove on the third driven shaft and the first bearing 47-3. The drive part 41 rotates the gearbox 42, thereby rotating the third driven gear shaft 47-1. This causes the threaded section 47-23 on the core-pulling shaft 47-2 to disengage from the threaded inner hole 101. The core-pulling shaft 47-2 moves along the first slide groove with the slider 45 and the slider insert 46. The slider insert 46 moves away from the part 100.

[0091] The inclined guide post 48 has a "T" shaped structure. One end is inserted into the second mold body 31, and the other end is slidably connected to the inclined through hole on the slider 45. When the inclined guide post 48 moves along with the second mold body 31, it can move along the first groove in conjunction with the slider 45.

[0092] The sliding assist part 49 includes: an assist rod 49-1, one end of which passes through the second stepped through hole on the first housing 42-1 and the second housing 42-2, and the other end is connected to the slider 45; and a second spring 49-2, which is sleeved on the assist rod 49-1 and disposed at the second stepped through hole; the second spring 49-2 is a commonly used structure in the prior art, such as a cylindrical spring; with the sliding assist part 49 provided, the rebound force of the second spring 49-2 further assists the slider 45 and the slider insert 46 to move along the first slide groove, and the slider insert 46 moves away from the part 100;

[0093] The third cooling section 410 includes: a third water inlet connected to the first mold body 20; a third water outlet connected to the first mold body 20 and spaced apart from the third water inlet; two hoses, one connected to the third water inlet and the other connected to the third water outlet; and a third water pipe connected to the hoses, passing through the second through groove 21-3 and the first through groove 44-1, and connected to the slider 45 and the slider insert 46; the third cooling section 410 is provided to circulate cooling water to cool the slider 45 and the slider insert 46, which helps to accelerate the cooling and molding speed of the part 100 in the mold cavity;

[0094] Another implementation method:

[0095] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown; in implementation, the feeding part 50 includes: a second plate 51 connected to the second mold body 30; a heat insulation plate 52 connected to the second plate 51; and a positioning ring 53 connected to the second plate 51, surrounded by the heat insulation plate 52, and the positioning ring 53 is higher than the heat insulation plate 52; the second plate 51 is a square plate structure and is connected to the second mold body 31 by hexagonal socket head cap screws; the heat insulation plate 52 is a square plate structure and is connected to the second plate 51 by hexagonal socket head cap screws, used for heat insulation during injection molding; the positioning ring 53 is connected to the second plate 51 by hexagonal socket head cap screws, used for connection to the injection molding machine nozzle; after the second plate 51, positioning ring 53 and second mold body 31 are combined, the middle part has an inverted conical feeding through hole, which facilitates the raw material to enter the conical through hole on the third mold core 33 along the feeding through hole, and then enter the mold cavity;

[0096] The feed section 50 is provided, which facilitates connection with the injection molding machine nozzle and introduces raw materials into the mold cavity. The structure has good reliability.

[0097] Another implementation method:

[0098] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 12As shown; in implementation, the ejector pin portion 60 includes: at least four pads 61, spaced apart and connected to the first plate 11; four first guide support pillars 62, spaced apart and connected to the first plate 11, with one end of each first guide support pillar 62 extending out of the first plate 11 and inserted into the first mold body 21; four second guide support pillars 63, spaced apart and connected to the first plate 11, spaced apart from the first guide support pillars 62, with one end of each second guide support pillar 63 extending out of the first plate 11 and abutting against the first mold body 21; a third plate 64, fitted onto the first guide support pillars 62 and the second guide support pillars 63, contacting the pads 61; a fourth plate 65, fitted onto the first guide support pillars 62 and the second guide support pillars 63, connected to the third plate 64; four guide sleeves 66, connected to the third plate 64 and the fourth plate 65, slidingly connected one-to-one with the first guide support pillars 62; and two ejector rods 67, one end of which is connected to the fourth plate 65. On plate 65, disposed between the third plate 64 and the fourth plate 65, with one end extending out of the first mold body 21 and contacting the second mold body 31; two third springs 68, one pair fitted onto the ejector rod 67, disposed between the first mold body 21 and the fourth plate 65; six ejector pins 69, spaced apart, one end of each ejector pin 69 connected to the fourth plate 65, disposed between the third plate 64 and the fourth plate 65, and the other end passing through the first mold core 22; a linear drive 610, connected to the first plate 11, used to link the third plate 64, the fourth plate 65, and the guide sleeve 66 to move along the first guide support column 62 and the second guide support column 63, the third springs 68 compressed, the ejector rod 67 pushing the second mold body 30 apart from the first mold body 20, and the ejector pins 69 ejecting the molded part 100 from the mold cavity; and at least two spacers 620, spaced apart and connected to the fourth plate 65.

[0099] The pad 61 is a circular plate structure, such as a rubber pad. The pad 61 is connected to the first plate 11 by a countersunk screw, which separates the first plate 11 from the third plate 64 and prevents the third plate 64 from colliding with the first plate 11.

[0100] The first guide support column 62 has a "T" shaped column structure and is tightly fitted to the first plate 11.

[0101] The second guide support column 63 is a cylindrical structure that is inserted and tightly fitted with the first plate 11 to support and limit the first mold body 21.

[0102] The third plate 64 or the fourth plate 65 is a square plate structure;

[0103] The guide sleeve 66 is a sliding bearing that fits tightly with the reserved through holes on the third plate 64 and the fourth plate 65 and is slidably connected to the first guide support column 62, so that the third plate 64 and the fourth plate 65 always move along a straight line with relatively high movement accuracy.

[0104] The ejector pin 67 has a "T"-shaped columnar structure and is used to push open the second mold body 30;

[0105] The third spring 68 is a commonly used structure in the prior art, such as a cylindrical spring, which has the function of elastic buffering;

[0106] The shape of the ejector pin 69 is a "T"-shaped columnar structure;

[0107] The linear drive component 610 is a common structure in the prior art, such as a cylinder or hydraulic cylinder, used to generate linear driving force;

[0108] The spacer 620 is a circular block structure, such as a rubber pad. The spacer 620 is connected to the fourth plate 65 by countersunk screws, which separates the fourth plate 65 from the first mold body 21 and prevents the fourth plate 65 from touching the first mold body 21. The structure has good reliability.

[0109] The part 100 is provided with an ejector pin 60. After the part 100 is formed, the linear drive 610 is activated, which moves the third plate 64, the fourth plate 65 and the guide sleeve 66 along the first guide support column 62 and the second guide support column 63. The third spring 68 is compressed, the ejector rod 67 pushes the second mold body 30 to separate from the first mold body 20, and the ejector pin 69 pushes the formed part 100 out of the mold cavity.

[0110] Another implementation method:

[0111] like Figure 1 , Figure 2 , Figure 3 As shown; in practice, it also includes: a protective frame 70 connected to the side walls of the mold base 10 and the second mold body 30; four protective rods 80, spaced apart and opposite to the protective frame 70, two of the protective rods 80 connected to the side wall of the mold base 10 and two of the protective rods 80 connected to the side wall of the second mold body 30; and two connecting blocks 90, opposite to each other, connecting the first mold body 20 and the second mold body 30;

[0112] The protective frame 70 is roughly "[" shaped and is connected to the mold base 10 and the second mold body 30 by internal hexagon bolts; the protective rod 80 is cylindrical and is connected to the mold base 10 and the second mold body 30 by internal hexagon bolts; the connecting block 90 is rectangular and is connected to the first mold body 20 and the second mold body 30 by internal hexagon bolts.

[0113] The mold is equipped with a protective frame 70, a protective rod 80, and a connecting block 90, which provides protection and ensures that the various parts of the mold will not loosen during transportation, making it relatively safe.

[0114] Regarding part 100

[0115] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 13 As shown; in practice, 12 pieces are interpreted as 12 pieces. A hydraulic motor is used to synchronously drive 12 threaded core-pulling molds and a driving method, which can synchronously pull the cores of 12 threaded inner holes 101, with relatively high forming efficiency and relatively high forming accuracy.

[0116] The working principle is as follows: A mold cavity is formed between the first mold part 20, the second mold part 30, and the threaded core-pulling assembly 40;

[0117] Raw material is introduced into the mold cavity from the feeding section 50, forming part 100 in the mold cavity. 12 threaded inner holes 101 are simultaneously formed by the threaded core-pulling assembly 40.

[0118] When the linear drive 610 on the ejector pin 60 is activated, the third plate 64, the fourth plate 65 and the guide sleeve 66 move along the first guide support column 62 and the second guide support column 63, the third spring 68 is compressed, and the ejector rod 67 pushes the second mold body 30 to separate from the first mold body 20.

[0119] The second mold body 30 moves along the hollow guide post 13 on the mold base 10. The second mold body 30 moves together with the inclined guide post 48. Under the action of the rebound force of the first spring 47-4, the core-pulling shaft 47-2 moves along the square groove on the third driven shaft and the first bearing 47-3. The drive unit 41 rotates the gearbox 42, thereby rotating the third driven gear shaft 47-1. This causes the threaded section 47-23 on the core-pulling shaft 47-2 to disengage from the threaded inner hole 101. The core-pulling shaft 47-2 moves along the first slide groove along the slider 45 and the slider insert 46. The rebound force of the second spring 49-2 on the sliding assist unit 49 further moves the slider 45 and the slider insert 46 along the first slide groove through the assist rod 49-1. The slider insert 46 and the second mold body 30 move away from the part 100, the mold cavity opens, and the ejector pin 69 ejects the molded part 100 from the mold cavity.

[0120] In the description, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc., indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings. They are only for the convenience or simplification of the description and do not indicate a specific orientation that must be present. The operation process described in the embodiments is not an absolute usage step, and corresponding adjustments can be made in actual use.

[0121] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art; the words “first,” “second,” and similar terms used in the specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components, and similarly, the words “a” or “a” and similar terms do not determine a quantity limitation, but rather indicate the presence of at least one, as determined by the content of the embodiments;

[0122] The above description is only a preferred embodiment, but the scope of protection is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art based on the technical solution and inventive concept within the scope of the technology disclosed should be included within the scope of protection.

Claims

1. A hydraulic motor synchronously driven 12 threaded core-pulling molds, characterized in that, include: Mold base; The first mold body is connected to the mold base; The second mold part is connected to the mold base and moves along the mold base to contact or separate from the first mold part; Six threaded core-pulling assemblies are spaced apart on the mold base and the first mold body, forming a mold cavity between the first mold body and the second mold body. The mold cavity is used to form a part. The threaded core-pulling assemblies simultaneously pull 12 threaded inner holes on the part. The feeding section is connected to the second mold body and communicates with the mold cavity, and is used to introduce raw materials into the mold cavity; And an ejector pin, connected between the mold base and the first mold body, for pushing the second mold body to open, the second mold body partially disengaging from the part in conjunction with the threaded core-pulling assembly, and the ejector pin ejecting the formed part from the mold cavity; The first mold body includes: a first mold body; The second mold part includes: a second mold body; The threaded core-pulling assembly includes: a drive unit connected to the mold base and the first mold body; a gearbox connected to the outer wall of the first mold body and partially rotated by the drive unit; two stops symmetrically connected to the second groove on the first mold body, forming a first sliding groove between them; six pads connected one-to-one in the second groove, each pad having a first through groove aligned and communicating with the second through groove on the first mold body; a slider slidably connected to the first sliding groove and the second sliding groove on the second mold body; a slider insert connected to the slider on one side and forming the mold cavity with the first mold body and the second mold body on the other side; and two core-pulling parts spaced apart. The mold assembly includes a core-pulling section, one end of which is connected to the gearbox, and the other end of which extends through the slider and the slider insert, for core-pulling the threaded inner hole; two oblique guide posts, symmetrically mounted on the slider and slidably connected to it, and connected to the second mold body, which move together with the second mold body, thus moving the slider along the first and second slide grooves; a sliding assist section, connected between the gearbox and the slider, for assisting the slider in moving; and a third cooling section, connected to the first mold body, extending through the second and first through grooves, and connected to the slider and the slider insert, for cooling the slider and the slider insert. The gearbox includes: a first housing connected to the outer wall of the first mold part; a second housing connected to the first housing and having a hollow space between them; a drive gear shaft connected to the first housing and disposed in the hollow space, one end of which is connected to the drive part; a first driven gear shaft connected to the first housing and the second housing and disposed in the hollow space, meshing with the drive gear shaft; and a second driven gear shaft connected to the first housing and the second housing and disposed in the hollow space, meshing with the first driven gear shaft, and the second driven gear shaft meshing with the core-pulling part. The core-pulling part includes: a third driven gear shaft connected to the second housing and meshing with the second driven gear shaft, with the third driven gear shaft extending out of the second housing; a core-pulling shaft, one end of which is inserted into and movably connected to the third driven gear shaft, and the other end of which extends out of the slider and the slider insert, for pulling the core from the threaded inner hole; a first bearing connected to the first stepped through hole on the slider to support the core-pulling shaft; a first spring sleeved on the core-pulling shaft and disposed at the first stepped through hole; and a retaining ring connected to the core-pulling shaft to limit the first spring. The sliding assist part includes: an assist rod, one end of which passes through the second stepped through hole on the first housing and the second housing, and the other end of which is connected to the slider; and a second spring, which is sleeved on the assist rod and disposed at the second stepped through hole.

2. The hydraulic motor synchronously driven 12 threaded core-pulling mold according to claim 1, characterized in that: The mold base includes: a first plate; two side support blocks symmetrically connected to the first plate and perpendicularly arranged between them; four hollow guide pillars spaced apart and connected to the first plate, with two hollow guide pillars forming a group, one group of hollow guide pillars extending through one of the side support blocks, and the hollow guide pillars being inserted into the first mold body; four positioning pins spaced apart and connected to the first plate, with two positioning pins forming a group, one group of positioning pins extending through one of the side support blocks, the positioning pins being spaced apart from the hollow guide pillars, used for positioning the first mold body; and at least four threaded pins, connected one-to-one to the hollow guide pillars, connecting the hollow guide pillars to the first mold body.

3. A hydraulic motor synchronously driven 12 threaded core-pulling mold according to claim 2, characterized in that: The first mold body includes a first mold body, which passes through the hollow guide post and the positioning pin; a first mold core, which is connected to a first groove on the first mold body; and a second mold core, which is connected to the first mold core. And a first cooling section, which is disposed on the first mold body and connected to the second mold core.

4. A hydraulic motor synchronously driven 12 threaded core-pulling mold according to claim 3, characterized in that: The second mold body further includes: four sliding guide pillars, spaced apart and connected to the second mold body, and slidably connected one-to-one with the hollow guide pillars; a third mold core, connected to the second mold body, and the third mold core communicating with the feeding part; a second cooling part, connected to the second mold body; and six shovel-based wear-resistant plates, spaced apart and connected to the second mold body, for one-to-one contact with the threaded core-pulling assembly.

5. A hydraulic motor synchronously driven 12-piece threaded core-pulling mold according to claim 4, characterized in that: The feeding section includes: a second plate connected to the second mold body; a heat insulation plate connected to the second plate; and a positioning ring connected to the second plate, surrounded by the heat insulation plate, and the positioning ring being higher than the heat insulation plate.

6. A hydraulic motor synchronously driven 12 threaded core-pulling mold according to claim 4, characterized in that: The ejector pin portion includes: at least four pads, spaced apart and connected to the first plate; four first guide support pillars, spaced apart and connected to the first plate, with one end of each first guide support pillar extending out of the first plate and inserted into the first mold body; four second guide support pillars, spaced apart and connected to the first plate, with one end of each second guide support pillar extending out of the first plate and abutting against the first mold body; a third plate, fitted onto the first and second guide support pillars, contacting the pads; a fourth plate, fitted onto the first and second guide support pillars, connected to the third plate; four guide sleeves, connected to the third and fourth plates, slidingly connected one-to-one with the first guide support pillars; and two ejector rods, one end of which is connected to the first... On the four plates, one end is positioned between the third and fourth plates, and the other end extends out of the first mold body and contacts the second mold body; two third springs, one pair, are fitted onto the ejector rod and positioned between the first mold body and the fourth plate; six ejector pins are spaced apart, one end of each ejector pin is connected to the fourth plate and positioned between the third and fourth plates, and the other end passes through the first mold core; a linear drive component is connected to the first plate and is used to move the third plate, the fourth plate, and the guide sleeve along the first guide support column and the second guide support column. When the third springs are compressed, the ejector rod pushes the second mold body part to separate from the first mold body part, and the ejector pins eject the molded part from the mold cavity; and at least two spacers are spaced apart and connected to the fourth plate.

7. A hydraulic motor synchronously driven 12 threaded core-pulling mold according to claim 1, characterized in that: Also includes: A protective frame is connected to the side wall of the mold base and the second mold body. Four protective rods are spaced apart and positioned opposite the protective frame. Two of the protective rods are connected to the side wall of the mold base, and two of the protective rods are connected to the side wall of the second mold part. Two connecting blocks are positioned opposite each other and connect the first mold part and the second mold part.

8. A method for synchronously driving 12 threaded core-pulling dies with hydraulic motors, characterized in that, A hydraulic motor synchronously drives 12 threaded core-pulling dies according to any one of claims 1-7, comprising: The mold cavity is formed between the first mold part, the second mold part, and the threaded core-pulling assembly; Raw material is introduced into the mold cavity through the feeding section, and the part is formed in the mold cavity. The 12 threaded inner holes are simultaneously formed by the threaded core-pulling assembly. The ejector pin moves, pushing the second mold body to move along the mold base. The second mold body separates from the first mold body. The second mold body, in conjunction with a portion of the threaded core-pulling assembly, disengages from the threaded inner hole. The ejector pin then ejects the formed part from the mold cavity.

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