Automatic blanking half die for inclined tee joint

Abstract

The utility model discloses an inclined three-way automatic blanking half die which comprises an upper punch, a pair of three-way die cores, a lower punch and a die cylinder main body, the die cylinder main body is annular, the inner wall of the die cylinder main body is in an inverted halfpace shape, a pair of die core sliding blocks are arranged on the inner wall of the die cylinder main body in an inclined sliding mode, and the outer walls of the die core sliding blocks are connected with the inner wall of the die cylinder main body in a sliding mode. A three-way die core is fixed in each die core sliding block, a sliding block limiting hole groove is formed in the spliced side face of the pair of die core sliding blocks, a core pulling sliding block is arranged in the sliding block limiting hole groove in a sliding mode, one end of the core pulling sliding block is provided with a side punch stretching into a die core side hole, and the other end of the core pulling sliding block is connected to the inner wall of the die cylinder body in a matched and sliding mode. The discharging assembly comprises a pushing block, a discharging sliding block and a lower pull rod, the three-way mold core is opened by pushing the pair of mold core sliding blocks upwards through the pushing block, blanking of a three-way piece finished product is completed through relative movement of the discharging sliding block and the lower punch, the effective demolding efficiency of the three-way piece finished product is improved, and automation is achieved.

Description

Technical Field

[0001] The utility model relates to the field of forging die cylinders, and more specifically, to an automatic blanking forging die for an inclined tee. Background Art

[0002] Forging dies, also known as forging dies, are used to forge copper bars or tubes to achieve the desired pattern. Harvest dies are a common type of forging die.

[0003] Chinese patent publication number CN219851923U discloses an automatic demolding Hafu mold cylinder, which includes an upper slider, a workbench, a top sleeve, an opening and closing seat, a mold frame, an inclined slider, a mold core, and an upper punch. Through the cooperation of the top sleeve and the opening and closing seat, the situation in which some blanks are tightly connected to the lower punch after forging is completed, resulting in demolding failure, is greatly reduced. However, the Hafu mold cylinder in this solution is only suitable for pipe-type forgings and cannot be applied to three-way forgings. Therefore, there is an urgent need for a Hafu mold cylinder that can solve the automatic blanking problem of three-way forgings. Utility Model Content

[0004] One purpose of the present utility model is to solve at least the above-mentioned problems and provide a Hafu mold for automatic blanking of an inclined tee, which completes the extraction of the side punch during unloading by setting a core-pulling slider and a side punch, and making them cooperate with the mold cylinder body, and through the position coordination between the pushing block, the unloading slider and the lower pull rod, the finished tee part is ejected from the lower punch through the inclined upper surface of the unloading slider.

[0005] In order to achieve these purposes and other advantages according to the utility model, a Hafu mold with automatic blanking of an inclined tee is provided, comprising an upper punch, a pair of tee cores, and a lower punch arranged in sequence from top to bottom, the assembled tee core comprising a core side hole, the lower end of the upper punch and the upper end of the lower punch respectively extending into the upper and lower ends of the tee core and abutting against the forging blank, the Hafu mold comprising; a mold cylinder body, which is annular and the inner wall is in an inverted step-shaped shape, a pair of core sliders are provided in the mold cylinder body for oblique sliding, the outer wall of the core slider is slidably connected to the inner wall of the mold cylinder body, a tee core is fixed in each core slider, a slider limiting hole groove is provided on the side surfaces of the pair of core sliders, a core pulling slider is provided for sliding in the slider limiting hole groove, and one end of the core pulling slider is provided with a side punch extending into the side hole of the mold core The other end of the core-pulling slider is matched and slidably connected to the inner wall of the mold cylinder body; a unloading assembly, which includes a pushing block, a unloading slider, and a lower pull rod. The upper part of the lower pull rod is provided with a lower punch fixing block, the bottom of the lower punch is fixed to the punch fixing block, the unloading slider is movably sleeved on the lower punch, and the upper surface of the unloading slider is an inclined surface, and the pushing block abuts against the bottom of a pair of core sliders; wherein, the opposite side walls of a pair of core sliders form multiple steps toward the center, and after a pair of core sliders are buckled, they are matched and supported by a pair of three-way mold cores, unloading slider, and lower punch fixing block from top to bottom through the steps. The pushing block rises and pushes the pair of core sliders to rise and move in opposite directions. When the punch fixing block is freed from the constraint of a pair of core sliders, the unloading slider is still supported by the steps of a pair of core sliders.

[0006] Preferably, the bottom of the mold cylinder body is connected to a main body connecting piece, in which a push sleeve is vertically inserted, the upper part of the push sleeve is connected to a push block, the bottom surface of the push block is in contact with the top surface of the main body connecting piece, and the lower pull rod is inserted into the push block and the push sleeve from top to bottom.

[0007] Preferably, the push sleeve is provided with a strip-shaped slot vertically on its body under the main connecting piece, and a limit pin is horizontally provided on the lower body of the pull-down rod, with both ends matching and passing through the strip-shaped slot and extending outward.

[0008] Preferably, the end of the core-pulling slider located in a pair of core sliders is provided with a side punch limiting groove, and the corresponding end of the side punch is provided with a side punch tenon, which is matched and slides in the side punch limiting groove.

[0009] Preferably, the inner wall of the mold cylinder body is provided with two first upwardly inclined limiting grooves, and the outer wall of the mold core slider is provided with a first T-shaped bar, which is matched and slidable in the first limiting grooves.

[0010] Preferably, a second T-shaped bar is provided at one end of the core-pulling slider away from the three-way mold core, and a second limiting groove is matched on the inner wall of the mold cylinder body, and the second T-shaped bar slides in the second limiting groove.

[0011] Preferably, a pair of core sliders are provided with two slider limiting hole grooves with different angles and arranged opposite to each other, and a core-pulling slider is provided for sliding in each slider limiting hole groove, and the core-pulling slider on the non-corresponding side of the core side hole is not provided with a side punch.

[0012] Preferably, a limit block is provided on the top surface of the mold cylinder body, and a liftable upper slider is connected to the top of the upper punch, and the bottom surface of the upper slider contacts the top surface of the limit block.

[0013] Preferably, a fixing block groove is provided on the upper inner side wall of the core mold slider, and the upper outer wall of the three-way mold core is retracted inward to form a core mold fixing platform, the core mold fixing platform is flush with the fixing block groove, and a semi-annular core mold pressure plate is detachably connected to the fixing block groove, and the bottom surface of the core mold pressure plate is tightly attached to the core mold fixing platform and the fixing block groove.

[0014] The utility model has at least the following beneficial effects:

[0015] The utility model can greatly reduce the situation where some three-way forgings are tightly connected to the lower punch after forging, resulting in demoulding failure, solves the problem of automatic unloading of the forged three-way finished product from the punch, increases the probability of effective demoulding and provides technical support for further realization of automation.

[0016] Other advantages, objectives and features of the present invention will be partially reflected in the following description, and will also be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 It is a schematic diagram of the main body of the utility model;

[0019] Figure 2 It is a side sectional schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the mold cylinder body of the present utility model;

[0021] Figure 4 This is an internal schematic diagram of the forging process of the present invention;

[0022] Figure 5 This is the internal diagram of the unloading process of the utility model Figure 1 ;

[0023] Figure 6 This is the internal diagram of the unloading process of the utility model Figure 2 ;

[0024] Figure 7 This is a schematic diagram of the mold cylinder body of the present utility model;

[0025] Figure 8 This is a schematic diagram of the assembly of the sleeve and the lower pull rod of the utility model;

[0026] Figure 9 This is a schematic diagram of a pair of core sliders of the present utility model;

[0027] Figure 10 This is a schematic diagram of a pair of mold core sliders of the present invention when they are open;

[0028] Figure 11 This is a side view of the mold core slider of the present utility model;

[0029] Figure 12 This is a schematic diagram of the disassembly of the internal structure of the mold cylinder body of the present invention;

[0030] Figure 13 This is a schematic diagram of the core-pulling slider and side punch of the utility model;

[0031] Figure 14 This is a schematic diagram of the unloading slider of the utility model;

[0032] Figure 15 This is a schematic diagram of the internal disassembly of one side of the utility model;

[0033] Figure 16 This is a schematic diagram of the forging process of the three-way die core of the present invention;

[0034] Figure 17 This is a schematic diagram of the working scene of the present utility model.

[0035] Legend: 1-push sleeve, 10-sleeve push block, 100-strip slot, 11-pull rod, 110-limiting pin, 111-lower punch fixing block, 12-lower punch, 2-main connecting piece, 21-connecting piece inclined surface, 20-connecting piece through hole, 3-mold cylinder body, 301-first limiting groove, 302-second limiting groove, 31-mold cylinder limiting block, 4-core slider, 40-slider bottom hole, 401-slider limiting hole slot, 402-fixed block Tongue and groove, 41-first T-shaped bar, 5-core-pulling slider, 50-side punch limit groove, 51-side punch, 510-side punch tenon, 52-second T-shaped bar, 6-core, 601-core side hole, 602-core fixing table, 61-core pressure plate, 7-unloading slider, 70-unloading slider through hole, 71-unloading inclined surface, 8-upper punch, 81-upper punch insert, 9-finished tee piece, 91-forging blank, 92-workbench, 93-upper slider. DETAILED DESCRIPTION

[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0037] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0038] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the components are commercially available unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense. For example, they can be fixedly connected or set, or detachably connected or set, or connected or set as a whole. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The directions or positional relationships indicated by the terms "transverse", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0039] like Figures 1 to 16 As shown, the technical solution of the present application provides an automatic blanking Hafu mold for an oblique tee, comprising an upper punch 8, a pair of tee cores 6, and a lower punch 12 arranged in sequence from top to bottom. The assembled tee core 6 includes a core side hole 601. The lower end of the upper punch 8 and the upper end of the lower punch 12 respectively extend into the upper and lower ends of the tee core 6 and abut against the forging blank 91. The Hafu mold comprises: a mold cylinder body 3, which is annular and has an inverted step-shaped inner wall. A pair of core sliders 4 are provided in the mold cylinder body 3 for oblique sliding. The outer wall of the core slider 4 is slidably connected to the inner wall of the mold cylinder body 3.

[0040] A three-way mold core 6 is fixed in each mold core slider 4, and a pair of mold core sliders 4 are provided with a slider limiting hole groove 401 on the side surface thereof, and a core-pulling slider 5 is provided for sliding in the slider limiting hole groove 401, and one end of the core-pulling slider 5 is provided with a side punch 51 extending into the mold core side hole 601, and the other end of the core-pulling slider 5 is matched and slidably connected to the inner wall of the mold cylinder body 3; a discharge assembly comprises a push block 10, a discharge slider 7, and a lower pull rod 11, the upper part of the lower pull rod 11 is provided with a lower punch fixing block 111, the bottom of the lower punch 12 is fixed to the punch fixing block 111, and the discharge slider 7 is movably sleeved on the lower On the punch 12, the upper surface of the discharge slider 7 is an inclined surface, which is the discharge inclined surface 71, and the pushing block 10 abuts against the bottom of a pair of core sliders 4; wherein, the opposite side walls of a pair of core sliders 4 form multiple steps toward the center. After the pair of core sliders 4 are buckled, they are matched and supported by a pair of three-way cores 6, a discharge slider 7, and a lower punch fixing block 111 from top to bottom through the steps. The pushing block 10 rises and pushes the pair of core sliders 4 to rise and move in opposite directions. When the punch fixing block 111 is freed from the constraint of the pair of core sliders 4, the discharge slider 7 is still supported by the steps of the pair of core sliders 4.

[0041] In the present technical solution, the periphery of the mold cylinder body 3 is fixed on a stationary workbench 92, and the top of the upper punch 8 is an upper punch insert 81, which is detachably connected to an external hydraulic device or other devices such as a screw motor by means of bolts, etc., so that the upper punch 8 can be mechanically moved vertically and pressed into the three-way mold core 6. The three-way mold core 6 is a mold core suitable for processing products, wherein the three-way mold core 6 forms a mold core cavity 600 in the middle after being spliced, and extends a mold core side hole 601 to the side. The inner wall of the mold cylinder body 3 is in an inverted step shape, and the outer wall shape of the mold core slider 4 is completely matched with the inner wall of the mold cylinder body 3 so that in a non-stressed state, the mold core slider 4 is supported by the inner wall of the mold cylinder body 3, and a sliding connection relationship is formed between the outer wall of the mold core slider 4 and the inner wall of the mold cylinder body 3 by setting a mortise and tenon form or other means. When the push block 10 is in When a pair of core mold sliders 4 are pushed upward under the action of external force, the core mold sliders 4 are slidably connected to the inner wall of the mold cylinder body 3, so they are displaced in the horizontal direction during the ascending process. The pair of core mold sliders 4 move in opposite directions to achieve the purpose of opening a pair of three-way mold cores 6. The core-pulling slider 5 is a strip-shaped structure, which can be slidably embedded in the slider limiting hole groove 401 set at the joint of the core mold slider 4 and can move under the action of external force. The width of the core-pulling slider 5 is greater than the maximum spacing when a pair of core mold sliders 4 move in opposite directions. The core-pulling slider 5 can always slide between the slider limiting hole groove 401 without falling off. One end of the core-pulling slider 5 is slidably connected to the mold cylinder body 3 through a mortise and tenon structure. When the core-pulling slider 5 is driven by the core mold slider 4 to move upward, it is driven laterally by the mold cylinder body 3 to move outward from the slider limiting hole groove 401.

[0042] In the present technical solution, three steps are formed inside the core slider 4, which support a pair of three-way cores 6, a discharge slider 7 and a lower punch fixing block 111 from top to bottom. When the pair of core sliders 4 are buckled, the inner wall of the core slider 4 is in close contact with the outer wall of the three-way core 6, the discharge slider 7 and the lower punch fixing block 111, and no displacement occurs when the upper punch 8 is pressed down. The width of the discharge slider 7 is greater than the maximum distance between the pair of core sliders 4 in which the discharge slider 7 moves in opposite directions, so that the discharge slider 7 is always located between the pair of core sliders 4 and will not be affected by the core sliding. The block 4 moves in opposition and falls from the corresponding step. The lower punch fixing block 111 is located at the lowest part of the core slider 4, and its width is smaller than the maximum spacing of the opposite movement of a pair of core sliders 4. When a pair of core sliders 4 move in opposition to a certain spacing, the lower punch fixing block 111 escapes from the corresponding step and stops accompanying the core slider 4 to continue moving upward. At this time, since the unloading slider 7 always moves upward in coordination with the core slider 4, the upper surface of the unloading slider 7 will push the tee product 9 on the lower punch 12 out and the tee product 9 falls naturally.

[0043] In the present technical solution, the device can be divided into a forging state and a blanking state according to the processing procedure. In the forging state, a pair of core sliders 4 fall to the lowest point in the mold cylinder body 3 and are assembled. At this time, a pair of three-way cores 6 in a pair of core sliders 4 are also in the assembled state. The inner wall of the core slider 4 is completely in contact with the unloading slider 7 and the lower punch fixing part 111. At this time, the top of the lower punch 12 is located in the core cavity 600 of the three-way core 6, and the side punch 51 is located in the side hole 601 of the core. Before forging, the metal strip or metal rod used as the forging blank 91 is placed from above into the core cavity 600 by manual or mechanical means, and the upper punch 8 is aligned with the three-way core. The top hole of the core 6 is pressed downward, and the forging blank 91 is deformed under the downward pressure of the upper punch 8. Under the joint action of the inner wall of the three-way die core 6, the lower punch 12, the side punch 51, and the upper punch 8, the forging blank 91 is forged to form a three-way finished product 9. During the forging process, the die core slider 4 is at the lowest point in the die cylinder body 3, and the pair of three-way die cores 6 are always horizontally constrained by the die core slider 4. The end of the core-pulling slider 5 connected to the side punch 51 touches the inner wall of the die cylinder body 3, so that the side punch 51 does not move during the forging process. The lower punch fixing block 111 is embedded in the pair of die core sliders 4, and the lower punch 12 does not move either.

[0044] In the blanking state, the upper punch 8 is lifted by the upper mechanical structure connected to the upper part. At this time, a pair of core sliders 4 remain assembled, and the upper punch 8 is pulled out from the tee finished product 9. Then the push block 10 rises under the action of the lower mechanical structure and pushes a pair of core sliders 4 to move up and move in opposite directions. At this time, a pair of tee cores 6 move in opposite directions and separate. The core-pulling slider 5 is raised together with the core slider 4, and is constrained by the inner wall of the mold cylinder body 3 to generate horizontal force. The core-pulling slider 5 is pulled out from the slider limit hole groove 401, and at the same time, the side punch 51 at its end is also pulled out from the tee finished product 9. The lower punch fixing part 111 is pulled out in the middle. In the initial stage of the rising process of the core slider 4, the lower punch fixing part 111 is still supported by the inner wall of a pair of core sliders 4, so it drives the lower punch 12, the tee product 9 and the lower pull rod 11 to move up together. When the distance between the opposite movements of the pair of core sliders 4 is greater than the horizontal length of the lower punch fixing part 111, the lower punch fixing part 111 is separated from the core slider 4 and stops rising. At this time, since the unloading slider 7 is always lifted along with the core slider 4, the upper surface of the unloading slider 7 wedges the tee product 9 from the end of the lower punch 12, and the tee product 9 completes its natural drop along the unloading slider 7.

[0045] In another technical solution, the bottom of the mold cylinder body 3 is connected to a main body connector 2, in which a push sleeve 1 is vertically inserted, the upper part of the push sleeve 1 is connected to a push block 10, the bottom surface of the push block 10 is in contact with the top surface of the main body connector 2, the lower pull rod 11 is inserted into the interior of the push sleeve 1, and the main body connector 2 is a cylindrical structure with a connector through hole 20 in the middle, and the push sleeve 1 can slide up and down in the connector through hole 20. The push block 10 can be a ring-shaped structure or a strip-shaped structure. The main body connector 2 can limit the push sleeve 1 and the lower pull rod 11 sleeved therein. The upper surface of the main body connector 2 can be provided with a connector slope 21 in the same direction as the discharge slope 71 to prevent the tee product 9 from falling from the upper and lower parts and staying on the main body connector 2.

[0046] In another technical solution, the push sleeve 1 is located under the main connecting member 2 and is provided with a strip-shaped slot 100 vertically. The lower rod body of the lower pull rod 11 is horizontally provided with a limit pin 110, both ends of which pass through the strip-shaped slot 100 and extend outward. In this technical solution, after the limit pin 110 touches the bottom surface of the main connecting member 2, the lower pull rod 11 stops moving upward and the lower punch fixing member 111 has been disengaged from the core slider 4 and stops rising. The bottom of the lower pull rod 11 can be designed with a cylinder , oil cylinder or other mechanical devices make the lower punch fixing part 111 release the contact relationship with the core slider 4, and the lower pull rod 11 cannot fall naturally. At this time, the push sleeve 1 can continue to move upward to drive the unloading slider 7 to push down the tee product 9. In the forging state, the limit pin 110 is located at the upper part of the strip groove 100. When the limit pin 110 contacts the body connector 2, since the limit pin 110 passes through the strip groove 100, the rise of the push sleeve 1 is not affected by the lower pull rod 11 sleeved therein.

[0047] In another technical solution, the end of the core-pulling slider 5 located in a pair of core sliders 4 is provided with a side punch limiting groove 50, and the corresponding end of the side punch 51 is provided with a side punch tenon 510, which is matched and slid in the side punch limiting groove 50. Figure 13 As shown, in the present technical solution, when processing the forged oblique tee product 9, since the side punch 51 needs to pull out the tee core 6 in an inclined state, relative movement will also occur between the side punch 51 and the end of the core-pulling slider 5 during the process of the side punch 51 pulling out the tee product 9. The axial direction of the side punch limiting groove 50 is perpendicular to the axial direction of the side punch 51, and the cross-section of the side punch limiting groove 50 is T-shaped. The side punch tenon 510 is matched and slidably arranged in the side punch limiting groove 50. In the process of the core slider 4 and the core-pulling slider 5 moving upward synchronously, the side punch 51 can be smoothly pulled out from the core side hole 601 by adjusting its relative position with the core-pulling slider 5.

[0048] In another technical solution, the inner wall of the mold cylinder body 3 is relatively provided with two first oblique upward limit grooves 301, and the outer wall of the mold core slider 4 is provided with a first T-shaped bar 41, which is matched and slid in the first limit groove 301. The first limit groove 301 is parallel to the inner wall of the mold cylinder body 3, and the first T-shaped bar 41 is slidably clamped in the first limit groove 301. In this technical solution, the cross-section of the first limit groove 301 is also T-shaped. The first T-shaped bar 41 is constrained in the first limit groove 301 and can only move obliquely along the axial direction of the first limit groove 301 without horizontal displacement.

[0049] In another technical solution, a second T-shaped bar 52 is provided at one end of the core-pulling slider 5 away from the three-way core mold 6, and a second limiting groove 302 is matched on the inner wall of the mold cylinder body 3. The second T-shaped bar 52 is matched and slides within the second limiting groove 302. The second limiting groove 302 is parallel to the inner wall of the mold cylinder body 3, and the second T-shaped bar 52 is slidably clamped in the second limiting groove 302. In this technical solution, the cross-section of the second limiting groove 302 is T-shaped, and the second T-shaped bar 52 is constrained in the second limiting groove 302 and can only move obliquely along the axial direction of the second limiting groove 302 without horizontal displacement.

[0050] In another technical solution, a pair of core sliders 4 are provided with two slider limiting hole grooves 401 with different angles and arranged opposite to each other. A core pulling slider 5 is slidably provided in each slider limiting hole groove 401. The core pulling slider 5 on the non-corresponding side of the core side hole 601 is not provided with a side punch 51. In this technical solution, since the conventional inclined tee forging parts mainly have two kinds of inclinations of 76° and 80°, in order to be applicable to a variety of tee cores 6 with core side holes 601 of different angles, the core sliders 4 are relatively opened. Two slider limit hole grooves 401 with two different angles are provided, and two sets of core-pulling sliders 5 and matching side punches 51 are also made to be applied to two tee mold cores 6 with different angles. When making a tee finished product 9 with one angle, it is only necessary to install the side punch 51 at the end of the core-pulling slider 5 with the corresponding inclination. When making a tee finished product 9 with another angle, it is necessary to replace the matching tee mold core 6 and make its mold core side hole 601 face the slider limit hole groove 401 with the corresponding angle, and replace the side punch 51 to the core-pulling slider 5 on the corresponding side.

[0051] In another technical solution, a limit block 31 is provided on the top surface of the mold cylinder body 3 , and a liftable upper slider 93 is connected to the top of the upper punch 8 , and the bottom surface of the upper slider 93 contacts the top surface of the limit block 31 .

[0052] In another technical solution, a fixed block groove 402 is provided on the upper inner wall of the core slider 4, and the upper outer wall of the three-way core mold 6 is retracted inward to form a core fixing platform 602, and the core fixing platform 602 is flush with the fixed block groove 402. A semi-annular core pressure plate 61 is detachably connected to the fixed block groove 402, and its bottom surface is tightly attached to the core fixing platform 602 and the fixed block groove 402. The core pressure plate 61 and the fixed block groove 402 are connected by vertical bolts, and the core pressure plate 61 presses the three-way core mold 6. Optionally, the bottom edge of the three-way core mold 6 can protrude outward, and the step on the inner wall of the core slider 4 can be provided with a matching groove, so that the core pressure plate 61 can better press the three-way core mold 6.

[0053] The number of equipment and processing scale described here are used to simplify the description of the utility model. The application, modification and variation of the utility model of the automatic blanking hafu mold of the inclined tee are obvious to those skilled in the art.

[0054] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. An automatic blanking Hafu mold for an inclined tee, comprising an upper punch (8), a pair of tee cores (6), and a lower punch (12) arranged in sequence from top to bottom, wherein the assembled tee core (6) comprises a core side hole (601), the lower end of the upper punch (8) and the upper end of the lower punch (12) respectively extend into the upper and lower ends of the tee core (6) and abut against a forging blank (91), characterized in that: Harvest models include: The mold cylinder body (3) is annular and has an inner wall in the shape of an inverted step. A pair of core sliders (4) are provided on the inner wall of the mold cylinder body (3) for oblique sliding. The outer wall of the core slider (4) is slidably connected to the inner wall of the mold cylinder body (3). A three-way mold core (6) is fixed in each core slider (4). The side surfaces of the pair of core sliders (4) are provided with slider limiting holes (401). A core pulling slider (5) is slidably provided in the slider limiting holes (401). One end of the core pulling slider (5) is provided with a side punch (51) extending into the side hole (601) of the mold core. The other end of the core pulling slider (5) is matched and slidably connected to the inner wall of the mold cylinder body (3). A discharge assembly comprises a push block (10), a discharge slider (7), and a lower pull rod (11); a lower punch fixing block (111) is provided on the upper portion of the lower pull rod (11); the bottom of the lower punch (12) is fixed to the punch fixing block (111); the discharge slider (7) is movably sleeved on the lower punch (12); the upper surface of the discharge slider (7) is an inclined surface; and the push block (10) abuts against the bottom of a pair of core sliders (4); The side walls of the pair of core sliders (4) opposite to each other form multiple steps toward the center. After the pair of core sliders (4) are buckled, they are matched and supported by a pair of three-way cores (6), a discharge slider (7), and a lower punch fixing block (111) in sequence from top to bottom through the steps. The push block (10) rises to push the pair of core sliders (4) to rise and move in opposite directions. When the punch fixing block (111) is freed from the constraint of the pair of core sliders (4), the discharge slider (7) is still supported by the steps of the pair of core sliders (4).

2. The automatic blanking Hafu mold of the oblique tee according to claim 1, characterized in that The bottom of the mold cylinder body (3) is connected to a main body connecting piece (2), and a push sleeve (1) is vertically inserted therein. The upper part of the push sleeve (1) is connected to a push block (10), and the bottom surface of the push block (10) contacts the top surface of the main body connecting piece (2). The lower pull rod (11) is inserted into the push block (10) and the push sleeve (1) from top to bottom.

3. The automatic blanking Hafu mold of the oblique tee as claimed in claim 2, characterized in that The push sleeve (1) is located below the main connecting member (2) and is provided with a vertical strip slot (100). The lower rod of the lower pull rod (11) is provided with a horizontal limit pin (110) which passes through the strip slot (100) and extends outward.

4. The automatic blanking Hafu mold of the oblique tee according to claim 1, characterized in that, The end of the core-pulling slider (5) located inside a pair of core sliders (4) is provided with a side punch limiting groove (50), and the corresponding end of the side punch (51) is provided with a side punch tenon (510) which matches and slides in the side punch limiting groove (50).

5. The automatic blanking Hafu mold of the oblique tee according to claim 1, characterized in that, The inner wall of the mold cylinder body (3) is relatively provided with two first limiting grooves (301) inclined upward, and the outer wall of the mold core slider (4) is provided with a first T-shaped bar (41) which is matched and slides in the first limiting groove (301).

6. The automatic blanking Hafu mold of the oblique tee according to claim 2, characterized in that, A second T-shaped bar (52) is provided at one end of the core-pulling slider (5) away from the three-way mold core (6); a second limiting groove (302) is matched and opened on the inner wall of the mold cylinder body (3); and the second T-shaped bar (52) is matched and slidable in the second limiting groove (302).

7. The automatic blanking Hafu mold for the oblique tee according to claim 5, characterized in that: A pair of core sliders (4) are provided with two slider limiting hole grooves (401) with different angles and arranged opposite to each other. A core pulling slider (5) is slidably arranged in each slider limiting hole groove (401). The core pulling slider (5) on the side not corresponding to the core side hole (601) is not provided with a side punch (51).

8. The automatic blanking Hafu mold for the oblique tee according to claim 1, characterized in that: A limit block (31) is provided on the top surface of the mold cylinder body (3), and a liftable upper slider (93) is connected to the top of the upper punch (8), and the bottom surface of the upper slider (93) contacts the top surface of the limit block (31).

9. The automatic blanking Hafu mold for the oblique tee according to claim 1, characterized in that: A fixed block groove (402) is provided on the upper inner side wall of the core slider (4); the upper outer wall of the three-way core (6) is retracted inward to form a core fixing platform (602); the core fixing platform (602) is flush with the fixed block groove (402); a semi-annular core pressing plate (61) is detachably connected to the fixed block groove (402); the bottom surface of the core pressing plate (61) is in close contact with the core fixing platform (602) and the fixed block groove (402).

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