A continuous extrusion die with mechanical feeding

Abstract

The present invention discloses a continuous hole extrusion die with mechanical feeding, comprising a mechanical feeding mechanism, a steel ball circulation mechanism and an extrusion mechanism; the mechanical feeding mechanism comprises a molding device, a driving device and an inclined iron; the molding device comprises an upper mold plate and a lower mold plate; the lower mold plate is provided with an inclined groove, in which a slider is arranged; a linkage seat is installed at one end of the slider, and a feeding cross arm is installed at the other end through a positioning pin and a screw; one end of the inclined surface of the inclined iron is arranged toward the linkage seat, and the other end is fixedly connected to the upper mold plate; the middle of the feeding cross arm is connected to the lower mold plate through a spring; the steel ball circulation mechanism comprises a mold base, a mold base cover plate, an extrusion hole cover plate and a steel ball rolling cover plate; the extrusion mechanism comprises a punch and a punch base; the present invention only needs one driving device to realize mechanical feeding and punch extrusion, and the chain plates continuously enter the working station under the action of the press, and a plurality of steel balls realize continuous rotation of extruding holes for a plurality of chain plates.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing of basic parts, in particular to a continuous hole extrusion die with mechanical feeding. Background Art

[0002] Leaf chain, also called flat link chain (Laschenkette), is a safety-related component that forms a load-bearing chain or a safety lifting chain, which is usually used as a traction element to achieve force deflection. Leaf chain is used in combination with hydraulic cylinders or as a counterweight chain. It ensures high lifting forces in lifting devices and is most widely used in lift masts of forklifts. It also fulfils other important functions as a counterweight chain in machine tools and as a lifting chain in container lifts.

[0003] Leaf chains consist of chain pins and link plates, for which a distinction is usually made between outer link plates, inner link plates and intermediate link plates, wherein the link plates are arranged in rows on the chain pins, the arrangement being prescribed by standards such as ISO 4347, for example.

[0004] Each link of the leaf chain consists of an outer link plate and an inner link plate or an intermediate link plate, which are hinged to each other through chain pins to form a rotating joint.

[0005] The processing of the chain plate holes in chain parts generally adopts the die punching process. The cylindrical surface of the chain plate hole generates stress concentration due to the punching process, which is easy to cause fatigue damage to the chain plate during use, thereby reducing the service life of the chain. If a certain amount of residual compressive stress is intentionally increased around the chain plate hole to resist its fatigue damage, it will greatly improve the fatigue strength of the chain plate during operation and increase the service life of the chain. The efficiency of the traditional rod extrusion hole manual hydraulic press rod extrusion hole extrusion operation is low, and the continuous operation causes the rod extrusion to wear and fail too quickly and the rod extrusion breakage causes safety accidents, which need to be solved. The continuous rotation of multiple steel balls to squeeze holes can avoid problems such as wear and failure too quickly and the rod extrusion breakage causes safety accidents.

[0006] The invention discloses a continuous hole extrusion die with mechanical feeding, which extrudes holes on multiple chain plates by continuously rotating multiple steel balls, thereby improving production efficiency, avoiding safety risks, and achieving the purpose of increasing the service life of the chain. Summary of the invention

[0007] The object of the present invention is to provide a continuous extrusion die with mechanical feeding.

[0008] In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention is: a continuous hole extrusion die with mechanical feeding, comprising a mechanical feeding mechanism, a steel ball circulation mechanism and an extrusion mechanism;

[0009] The mechanical feeding mechanism comprises a molding device, a driving device and an inclined iron; the molding device comprises an upper mold plate and a lower mold plate; a mold handle is installed above the upper mold plate, and the mold handle is linked with the driving device; an inclined groove is provided on the lower mold plate, and a slider is provided in the inclined groove; a linkage seat is installed at one end of the slider, and a feeding cross arm is installed at the other end through a positioning pin and a screw; one end of the inclined surface of the inclined iron is arranged toward the linkage seat, and the other end is fixedly connected to the upper mold plate; the middle of the feeding cross arm is connected to the lower mold plate through a spring; a feeding tongue is installed on the feeding cross arm, and the feeding tongue is used to push the chain plate;

[0010] The steel ball circulation mechanism includes a die base, a die base cover plate, an extrusion hole cover plate and a steel ball rolling track cover plate; the die base is installed on the upper surface of the lower template, and a material leakage channel is installed in the die base; the die base cover plate is fixed to the upper surface of the die base, and a die base cover plate insert is inlaid on the die base cover plate, and a first steel ball channel hole is opened in the die base cover plate insert; the extrusion hole cover plate is fixed to the upper surface of the die base cover plate, and a chain plate extrusion channel is formed between the extrusion hole cover plate and the die base cover plate; a second steel ball channel hole corresponding to the first steel ball channel hole is opened between the extrusion hole cover plate and the steel ball rolling track cover plate; a first channel is also opened in the die base, and the feeding end and the discharging end of the material leakage channel correspond to the first steel ball channel hole and the first channel setting respectively;

[0011] The extrusion mechanism includes a punch and a punch seat; an upper pad is installed on the lower surface of the upper template, the punch seat is installed on the lower surface of the upper pad, and the punch is assembled on the punch seat; the punch is used to press in the steel ball.

[0012] The feed tongue is fixed on the feed cross arm by screws, and the screw fixing hole of the feed tongue is a long embedded hole structure, and the position of the feed tongue conveying chain plate can be adjusted by the screws.

[0013] Among them, first limiting nail holes are provided on both sides of the middle part of the two first steel ball channel holes of the die base cover plate insert, and the first limiting nails extend out through the first limiting nail holes; the first limiting nails are arranged to prevent the steel balls from piling up higher than the die base cover plate due to too many steel balls in the first steel ball channel holes and the leakage channel, so as to prevent the accumulated steel balls from blocking the feeding of the chain plate.

[0014] The die base cover plate and the die base cover plate insert are provided with a through hole with an outer thread corresponding to the first limit pin hole, and the big head of the first limit pin slides freely in the through hole; a spring is also installed in the through hole, and a slotted locking screw is screwed on the threaded end of the through hole to fix the spring; the spring is in a compressed state, and continuously applies a force to the first limit pin to ensure that the small head of the first limit pin is extended through the first limit pin hole; under the action of the punch, the steel ball can pass through the first limit formed by the small heads of the two first limit pins, while the accumulated steel balls cannot pass through the first limit formed by the small heads of the two first limit pins from the bottom.

[0015] Preferably, the linkage seat is a roller seat, in which a roller and a roller shaft are assembled; the roller unloads the pressure of the inclined surface of the inclined iron by rolling and axial translation.

[0016] Among them, when the pressing block of the press moves downward, the upper template drives the inclined iron to move downward, and the inclined surface of the inclined iron pushes the roller to roll and drives the roller to move axially. The roller unloads the pressure of the inclined surface of the inclined iron through rolling and axial translation. The design of the roller allows the roller to unload the inclined surface pressure through rolling, and can also change sliding friction into rolling friction, effectively improving the service life of the roller.

[0017] Preferably, a lining strip is further provided in the inclined groove, and the lining strip is fixed on the inclined groove by screws to form a trapezoidal groove channel, and the trapezoidal groove channel is clearance-matched with the sliding block.

[0018] The trapezoidal groove channel cooperates with the clearance of the slider to ensure the flexibility and effectiveness of the axial translation of the slider.

[0019] Preferably, the steel ball circulation mechanism also includes a steel ball rolling seat and a connecting pipe; the second connecting channel and the first connecting channel are respectively opened at the upper and lower ends of the steel ball rolling seat; one side of the first connecting channel and the second connecting channel corresponds to the second steel ball channel hole and the first channel setting; the other side is connected through a connecting pipe.

[0020] Wherein, the connecting pipe is preferably a hose, which is used for diameter compensation of the steel ball.

[0021] Preferably, the second steel ball channel hole, the first steel ball channel hole, the leakage channel, the first channel, the first connecting channel, the connecting pipe and the second connecting channel form a steel ball circulation channel.

[0022] There are two steel ball circulation channels, and correspondingly, there are two punches.

[0023] Preferably, a positioning backer is installed on the threaded hole on one side of the chain plate extrusion channel on the lower surface of the extrusion hole cover plate, and a damping tongue and a positioning tongue are installed on the other side of the chain plate extrusion channel on the lower surface of the extrusion hole cover plate; the damping tongue and the positioning tongue are both provided with a notch on the side away from the chain plate extrusion channel; a positioning channel is formed between the notch, the lower surface of the extrusion hole cover plate and the upper surface of the die base cover plate, and a spring is installed in the positioning channel, and the spring is in a compressed state;

[0024] Preferably, the damping tongue and the positioning tongue each have a boss on one side.

[0025] Among them, by arranging a limit piece corresponding to the boss, it is possible to prevent the damping tongue and the positioning tongue from penetrating into the chain plate channel due to the action of the spring, thereby affecting the conveying of the chain plate.

[0026] Preferably, a side of the positioning tongue close to the chain plate extrusion channel matches the shape of the chain plate.

[0027] The damping tongue is used to prevent the feeding dislocation caused by the inertia of the chain plate, and the damping tongue is a plane structure close to the chain plate channel to achieve rough positioning of the chain plate;

[0028] The positioning tongue holds the chain plate tightly, and by cooperating with the positioning backer, the chain plate is pushed to the corresponding position; the positioning tongue is matched with the shape of the chain plate on the side close to the chain plate channel, and through the engagement of the positioning tongue with the chain plate, the chain plate hole is made to correspond to the positions of the first steel ball channel hole and the second steel ball channel hole, thereby achieving precise positioning of the chain plate.

[0029] Preferably, the second steel ball passage hole is composed of an upper pipe and a lower pipe that are correspondingly arranged, the lower pipe is a channel opened inside the extruded hole cover plate, and the upper pipe is a channel inclined at a certain angle to the horizontal plane.

[0030] Preferably, a feed pad is also installed on the lower template, and a groove is opened on the feed pad corresponding to the transport direction of the chain plate, and a lower guide rail is fixed in the groove; a feed cover plate is fixed on the feed pad, and a chain plate conveying channel is formed between the feed cover plate and the lower guide rail, and the chain plate conveying channel is arranged corresponding to the chain plate extrusion channel.

[0031] Among them, the feed pad is made of tempered medium carbon steel, and the lower guide rail is quenched and tempered by mold steel to improve wear resistance and save costs.

[0032] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0033] 1. The present invention discloses a continuous hole extrusion die with mechanical feeding, which only requires one driving device to realize mechanical feeding and punch extrusion. The chain plate continuously enters the working station under the action of the press, and the steel ball circulation mechanism and the extrusion mechanism realize the hole extrusion of the chain plate;

[0034] 2. The present invention discloses a continuous hole extrusion die with mechanical feeding, the chain plate holes made by the steel ball circulation mechanism have good verticality, low cost, good grinding effect, and significantly improve the wear resistance and service life of the chain plate;

[0035] 3. The present invention discloses a continuous hole extrusion die with mechanical feeding, which replaces the traditional manual hydraulic press rod extrusion and hole extrusion through a steel ball circulation mechanism and an extrusion mechanism, has high economic benefits, and is less likely to cause the punch to wear and fail and break. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic structural diagram of an embodiment of the present invention without a hose;

[0037] Figure 2 Schematic diagram of the partial structure of the mechanical feeding mechanism of the embodiment of the present invention Figure 1 ;

[0038] Figure 3 Schematic diagram of the partial structure of the mechanical feeding mechanism of the embodiment of the present invention Figure 2 :

[0039] Figure 4 This is a structural schematic diagram of a steel ball circulation mechanism according to an embodiment of the present invention;

[0040] Figure 5 Schematic diagram of chain conveyor in an embodiment of the present invention Figure 1 ;

[0041] Figure 6 Schematic diagram of chain conveyor in an embodiment of the present invention Figure 2 .

[0042] Among them: 1. die handle; 2. upper template; 3. upper pad; 4. punch seat; 5. punch; 6. steel ball roller cover; 7. extrusion hole cover; 8. die base cover insert; 9. die base cover; 10. first limit pin; 11. leakage channel; 12. steel ball roller seat; 13. die base; 14. lower template 14; 15. inclined iron; 16. positioning backing; 17. roller seat; 18. roller shaft; 19. roller; 20. feeding cross arm; 21. slider; 22. inlay; 23. feeding column; 24. feeding cover; 25. lower guide rail; 26. feeding pad; 27. feeding tongue; 28. damping tongue; 29. ​​positioning tongue. DETAILED DESCRIPTION

[0043] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the structures related to the present invention. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other without conflict.

[0044] Example

[0045] See also Figure 1-Figure 6 A continuous hole extrusion die with mechanical feeding comprises a mechanical feeding mechanism, a steel ball circulation mechanism and an extrusion mechanism.

[0046] The mechanical feeding mechanism includes a molding device, a driving device and an inclined iron 15; the molding device includes an upper mold plate 2 and a lower mold plate 14; a mold handle 1 is installed above the upper mold plate 2, and the mold handle 1 is linked with a press; the mold handle 1 is fixed together with a pressing block of the press to drive the upper mold plate 2 to move up and down; an inclined groove is opened on the lower mold plate 14, and a slider 21 and a lining 22 are arranged in the inclined groove. The lining 22 is fixed to the inclined groove by screws to form a trapezoidal groove channel, and the trapezoidal groove channel is in clearance with the slider 21 to ensure the flexibility and effectiveness of the axial translation of the slider 21;

[0047] A roller seat 17 is installed at one end of the slider 21, and a feeding cross arm 20 is installed at the other end through a positioning pin and a screw.

[0048] A roller 19 and a roller shaft 18 are assembled in the roller seat 17 , and the roller 19 is fixed on the roller seat 17 via the roller shaft 18 .

[0049] One end of the inclined surface of the inclined iron 15 is arranged toward the roller 19, and the other end is fixedly connected to the upper template 2; when the press block moves downward, the upper template 2 drives the inclined iron 15 to move downward, and the inclined surface of the inclined iron 15 pushes the roller 19 to roll and drives the roller 19 to translate axially, and the roller 19 unloads the pressure of the inclined surface of the inclined iron 15 by rolling and axial translation; the design of the roller 19 allows the roller 19 to unload the inclined surface pressure by rolling, and can also change the sliding friction into rolling friction, thereby effectively improving the service life of the roller 19.

[0050] A feeding tongue 27 is installed on the feeding cross arm 20. The feeding tongue 27 moves synchronously with the feeding cross arm 20. The feeding tongue 27 is used to push the chain plate.

[0051] The middle of the feeding cross arm 20 is connected to the lower template 14 by a spring, one end of the spring is fixed to the middle of the feeding cross arm 20 by a screw, and the other end is fixed to the lower template 14 by a screw; when the press drives the inclined iron 15 to move upward, the spring pulls the feeding cross arm 20 to translate toward the central axis of the molding device, thereby driving the feeding tongue 27 to push the chain plate to the working station.

[0052] The feed tongue 27 is fixed on the feed cross arm 20 by screws. The screw fixing hole of the feed tongue 27 is a long embedded hole structure, and the position of the conveying chain plate of the feed tongue 27 can be adjusted by the screws.

[0053] The steel ball circulation mechanism includes a die base 13, a die base cover plate 9, an extrusion hole cover plate 7, a steel ball rolling cover plate 6, a steel ball rolling seat 12 and a hose.

[0054] The die base 13 is installed on the upper surface of the lower die plate 14, and a leakage channel 11 is installed in the die base 13; the die base 13 is milled with square grooves on both sides of the leakage channel 11 by rotating the milling cutter 90°; the square grooves and the inner wall of the hole in the die base 13 in which the leakage channel 11 is embedded form a square steel ball channel rotated 90°, and the square steel ball channel rotated 90° is the leakage channel 11; the movement direction of the steel ball is realized by the leakage channel 11 to achieve a 90° rotation.

[0055] The die base cover plate 9 is fixed to the upper surface of the die base 13 by positioning pins and screws. A die base cover plate insert 8 is inlaid on the die base cover plate 9. Two first steel ball passage holes are provided in the die base cover plate insert 8.

[0056] A first channel is provided in the mold base 13 , and a feed end and a discharge end of the leakage channel 11 correspond to the first steel ball channel hole and the first channel respectively.

[0057] First limit pin 10 holes are provided on both sides of the middle part of the two first steel ball channel holes of the die base cover plate insert 8, and the first limit pin 10 extends out through the first limit pin 10 holes; the first limit pin 10 is provided to prevent the steel balls from piling up higher than the die base cover plate 9 due to excessive steel balls in the first steel ball channel hole and the leakage channel 11, so as to prevent the accumulated steel balls from blocking the feeding of the chain plate.

[0058] The die base cover plate 9 and the die base cover plate insert 8 are provided with a through hole with an outer thread corresponding to the hole of the first limit pin 10, and the large head of the first limit pin 10 slides freely in the through hole; a spring is also installed in the through hole, and a slotted locking screw is screwed on the threaded end of the through hole to fix the spring; the spring is in a compressed state, and continuously applies a force to the first limit pin 10 to ensure that the small end of the first limit pin 10 extends out through the hole of the first limit pin 10; under the action of the punch 5, the steel ball can pass through the first limit formed by the small heads of the two first limit pins 10, while the accumulated steel balls cannot pass through the first limit formed by the small heads of the two first limit pins 10 from the bottom.

[0059] The extrusion hole cover plate 7 is fixed to the upper surface of the die base cover plate 9 by positioning pins and screws. A groove is provided on the lower surface of the extrusion hole cover plate 7. A chain plate extrusion channel is formed between the groove of the extrusion hole cover plate 7 and the die base cover plate 9.

[0060] A positioning backer 16 is installed at the threaded hole on one side of the chain plate extrusion channel on the lower surface of the extrusion hole cover plate 7, and a damping tongue 28 and a positioning tongue 29 are installed on the other side of the chain plate extrusion channel on the lower surface of the extrusion hole cover plate 7; two notches are provided on the side of the damping tongue 28 and the positioning tongue 29 away from the chain plate extrusion channel; a positioning channel is formed between the notch, the lower surface of the extrusion hole cover plate 7 and the upper surface of the die base cover plate 9, and a spring is installed in the positioning channel, and the spring is in a compressed state; the damping tongue 28 is used to prevent the feeding dislocation of the chain plate caused by inertia, and the damping tongue 28 is a planar structure close to the side of the chain plate channel to achieve rough positioning of the chain plate.

[0061] The positioning tongue 29 holds the chain plate tightly, and by cooperating with the positioning backer 16, the chain plate is pushed to the corresponding position; the positioning tongue 29 is matched with the shape of the chain plate on the side close to the chain plate channel, and through the engagement of the positioning tongue 29 with the chain plate, the chain plate hole is made to correspond to the positions of the first steel ball channel hole and the second steel ball channel hole, thereby realizing precise positioning of the chain plate.

[0062] The damping tongue 28 and the positioning tongue 29 each have a boss on one side. By arranging a limiter corresponding to the boss, the damping tongue 28 and the positioning tongue 29 can be prevented from penetrating into the chain plate channel due to the action of the spring, thereby affecting the conveying of the chain plate.

[0063] A feed pad 26 is also installed on the lower template 14 through positioning pins and screws. The feed pad 26 has a groove corresponding to the transportation direction of the chain plate, and the lower guide rail 25 is fixed in the groove by screws; the feed pad 26 is made of tempered medium carbon steel, and the lower guide rail 25 is quenched and tempered by mold steel to improve wear resistance and save costs.

[0064] The feed cover plate 24 is fixed to the feed pad plate 26 by positioning pins and screws, and a chain plate conveying channel is formed between the feed cover plate 24 and the lower guide rail 25, and the chain plate conveying channel is arranged corresponding to the chain plate extrusion channel.

[0065] Feeding columns 23 are provided on both sides of the chain plate conveying channel for limiting the waist of the chain plate.

[0066] A second steel ball passage hole corresponding to the first steel ball passage hole is provided between the perforated cover plate 7 and the steel ball raceway cover plate 6 .

[0067] The second steel ball channel hole is composed of a corresponding upper pipe and a lower pipe, the lower pipe is a vertical square hole channel opened inside the perforated cover plate 7, and the upper pipe is a square hole channel with a certain angle of inclination to the horizontal plane formed by the upper surface of the perforated cover plate 7 and the steel ball rolling cover plate 6; the upper pipe is inclined downward at a certain angle to facilitate the steel ball to enter the lower pipe smoothly under the action of gravity.

[0068] A second limiting nail hole is provided on one side of the second steel ball passage hole of the perforated cover plate 7, through which the second limiting nail extends, and the second limiting nail and the side wall of the lower pipe form a second limit for the steel ball.

[0069] A countersunk hole with an outer thread is provided in the extruded hole cover plate 7 corresponding to the second limit pin hole, and the large head of the second limit pin slides freely in the countersunk hole; a spring is also installed in the countersunk hole, and a slotted locking screw is screwed on the threaded end of the countersunk hole for fixing the spring; the spring is in a compressed state, and continuously applies a force to the second limit pin to ensure that the small end of the second limit pin is extended through the second limit pin hole; under the action of the punch 5, the steel ball passes through the second limit formed by the small head of the second limit pin and the side wall of the lower pipe.

[0070] The second limit pin is arranged corresponding to the connection point between the upper pipe and the lower pipe. The second limit pin can prevent multiple steel balls from entering the lower pipe, ensuring that each punch 5 presses one steel ball into the chain plate aperture each time to squeeze a hole.

[0071] A first channel is further provided in the mold base 13 , and a feed end and a discharge end of the leakage channel 11 correspond to the first steel ball channel hole and the first channel respectively.

[0072] The steel ball roller seat 12 is provided with a second connecting channel and a first connecting channel at the upper and lower ends respectively; one side of the first connecting channel and the second connecting channel corresponds to the second steel ball channel hole and the first channel setting; the other side is connected by a hose, and the two ends of the hose are fixedly connected to the first connecting channel and the second connecting channel by screws.

[0073] The second steel ball channel hole, the first steel ball channel hole, the leakage channel 11, the first channel, the first connecting channel, the hose and the second connecting channel form a steel ball circulation channel.

[0074] The extrusion mechanism includes a punch 5 and a punch seat 4; an upper pad 3 is installed on the lower surface of the upper template 2, the punch seat 4 is installed on the lower surface of the upper pad 3, and the punch 5 is assembled on the punch seat 4; the punch 5 is used to press in the steel ball.

[0075] In actual use,

[0076] When the press drives the inclined iron 15 and the punch 5 to descend, the punch 5 presses the steel ball stuck at the second limit position into the lower channel of the second steel ball channel hole, the chain plate hole and the first limit position of the first steel ball channel hole in sequence, so as to realize the extrusion hole of the chain plate. Under the action of the punch 5, the steel ball can pass through the first limit position formed by the small heads of the two first limit pins 10, while the accumulated steel balls cannot pass through the first limit position formed by the small heads of the two first limit pins 10 from the bottom, which can effectively avoid the accumulated steel balls blocking the feeding of the chain plate; the italic body drives the feeding cross arm 20 to translate in the direction away from the central axis of the molding device, the feeding tongue 27 is away from the working station, and the feeding plate performs the loading operation;

[0077] When the press drives the inclined iron 15 and the punch 5 to move upward, the steel ball enters the second limit position from the upper pipe, and the second limit pin supports the steel ball to prevent multiple steel balls from entering the lower pipe, ensuring that each punch 5 presses one steel ball into the chain plate aperture each time to squeeze a hole; the spring pulls the feeding cross arm 20 to translate toward the central axis of the molding device, thereby driving the feeding tongue 27 to push the chain plate to the working station, and the damping tongue 28 and the positioning tongue 29 perform rough positioning and fine positioning of the chain plate in turn.

[0078] The present invention introduces a continuous hole extrusion die with mechanical feeding, which only needs one driving device to realize mechanical feeding and punch 5 extrusion; the design of the roller 19 enables the roller 19 to unload the inclined surface pressure by rolling, and can also change the sliding friction into rolling friction, thereby effectively improving the service life of the roller 19; the chain plate continuously enters the working station under the action of the press, and the steel ball circulation mechanism and the extrusion mechanism realize the extrusion of the chain plate; the chain plate holes made by the steel ball circulation mechanism have good verticality, low cost, good grinding effect, and significantly improve the wear resistance and service life of the chain plate.

[0079] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0080] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0081] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to the above embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the above embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A continuous hole extrusion die with mechanical feeding, characterized in that: It includes mechanical feeding mechanism, steel ball circulation mechanism and extrusion mechanism; The mechanical feeding mechanism comprises a molding device, a driving device and an inclined iron (15); the molding device comprises an upper mold plate (2) and a lower mold plate (14); a mold handle (1) is installed above the upper mold plate (2), and the mold handle (1) is linked with the driving device; an inclined groove is provided on the lower mold plate (14), and a slider (21) is provided in the inclined groove; a linkage seat is installed at one end of the slider (21), and a feeding cross arm (20) is installed at the other end through a positioning pin and a screw; one end of the inclined surface of the inclined iron (15) is arranged toward the linkage seat, and the other end is fixedly connected to the upper mold plate (2); the middle of the feeding cross arm (20) is connected to the lower mold plate (14) through a spring; a feeding tongue (27) is installed on the feeding cross arm (20), and the feeding tongue (27) is used to push the chain plate; The steel ball circulation mechanism comprises a die base (13), a die base cover plate (9), an extrusion hole cover plate (7) and a steel ball rolling track cover plate (6); the die base (13) is mounted on the upper surface of the lower mold plate (14), and a material leakage channel (11) is installed in the die base (13); the die base cover plate (9) is fixed to the upper surface of the die base (13), a die base cover plate insert (8) is inlaid on the die base cover plate (9), and a first steel ball channel hole is opened in the die base cover plate insert (8) ; The extrusion hole cover plate (7) is fixed to the upper surface of the die base cover plate (9), and a chain plate extrusion channel is formed between the extrusion hole cover plate (7) and the die base cover plate (9); a second steel ball channel hole corresponding to the first steel ball channel hole is provided between the extrusion hole cover plate (7) and the steel ball rolling track cover plate (6); a first channel is also provided in the die base (13), and the feed end and the discharge end of the leakage channel (11) correspond to the first steel ball channel hole and the first channel setting respectively; The extrusion mechanism comprises a punch (5) and a punch seat (4); an upper pad (3) is installed on the lower surface of the upper template (2), the punch seat (4) is installed on the lower surface of the upper pad (3), and the punch (5) is assembled on the punch seat (4); the punch (5) is used to press in a steel ball.

2. A continuous extrusion die with mechanical feeding as claimed in claim 1, characterized in that: The linkage seat is a roller seat (17), and a roller (19) and a roller shaft (18) are installed in the roller seat (17); the roller (19) unloads the pressure of the inclined surface of the inclined iron (15) by rolling and axial translation.

3. A continuous extrusion die with mechanical feeding as claimed in claim 1, characterized in that: A lining strip (22) is also provided in the inclined groove, and the lining strip (22) is fixed to the inclined groove by screws to form a trapezoidal groove channel, and the trapezoidal groove channel is clearance-matched with the sliding block (21).

4. A continuous extrusion die with mechanical feeding as claimed in claim 1, characterized in that: The steel ball circulation mechanism also includes a steel ball roller seat (12) and a connecting pipe; the steel ball roller seat (12) is provided with a second connecting channel and a first connecting channel at the upper and lower ends respectively; one side of the first connecting channel and the second connecting channel corresponds to the second steel ball channel hole and the first channel; the other side is connected via the connecting pipe.

5. A continuous extrusion die with mechanical feeding as claimed in claim 4, characterized in that: The second steel ball channel hole, the first steel ball channel hole, the material leakage channel (11), the first channel, the first connecting channel, the connecting pipe and the second connecting channel form a steel ball circulation channel.

6. A continuous extrusion die with mechanical feeding as claimed in claim 1, characterized in that: The threaded hole on one side of the chain plate extrusion channel is provided with a positioning backer (16) on the lower surface of the extrusion hole cover plate (7), and a damping tongue (28) and a positioning tongue (29) are provided on the other side of the chain plate extrusion channel on the lower surface of the extrusion hole cover plate (7); the damping tongue (28) and the positioning tongue (29) are provided with a notch on the side away from the chain plate extrusion channel; a positioning channel is formed between the notch, the lower surface of the extrusion hole cover plate (7) and the upper surface of the die base cover plate (9), and a spring is installed in the positioning channel, and the spring is in a compressed state.

7. A continuous extrusion die with mechanical feeding as claimed in claim 6, characterized in that: The damping tongue (28) and the positioning tongue (29) are each provided with a boss on one side.

8. A continuous extrusion die with mechanical feeding as claimed in claim 6, characterized in that: The side of the positioning tongue (29) close to the chain plate extrusion channel matches the shape of the chain plate.

9. A continuous extrusion die with mechanical feeding as claimed in claim 1, characterized in that: The second steel ball passage hole is composed of an upper pipe and a lower pipe that are correspondingly arranged, the lower pipe is a channel opened inside the perforated cover plate (7), and the upper pipe is a channel inclined at a certain angle to the horizontal plane.

10. A continuous extrusion die with mechanical feeding as claimed in claim 1, characterized in that: A feed pad (26) is also installed on the lower template (14), and a groove is provided on the feed pad (26) corresponding to the transport direction of the chain plate, and a lower guide rail (25) is fixed in the groove; a feed cover plate (24) is fixed on the feed pad (26), and a chain plate conveying channel is formed between the feed cover plate (24) and the lower guide rail (25), and the chain plate conveying channel is arranged corresponding to the chain plate extrusion channel.

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