阅读说明：本技术 一种具有防护功能的自动螺旋压力机 (Automatic screw press with protection function ) 是由 李正华 金龙 夏誉容 卢彦名 夏一文 于 2020-11-02 设计创作，主要内容包括：本发明公开了一种具有防护功能的自动螺旋压力机,包括支撑架,所述支撑架上端设置有承压架,所述承压架上部设置有压室,所述压室下端设置有上料出料复合机构,所述上料出料复合机构下端设置有防过压机构,所述压室上端设置有下压机构；本发明的上料出料复合机构可自动向压室内上料,在上料的同时设置了通风管,使原料快速、均匀的布满压室,同时避免出料口的堵塞,该种上料方式使料仓位置低,方便人工上料,节省人力,同时在产品压制完成后,可顶出产品,方便产品下料,下压机构在压制产品时,如果出现螺杆松动、电机损坏等情况造成下压压力过大,会导致装置损坏,造成较大损失,防过压机构可避免装置损坏。(The invention discloses an automatic screw press with a protection function, which comprises a support frame, wherein a pressure bearing frame is arranged at the upper end of the support frame, a pressure chamber is arranged at the upper part of the pressure bearing frame, a feeding and discharging composite mechanism is arranged at the lower end of the pressure chamber, an overpressure prevention mechanism is arranged at the lower end of the feeding and discharging composite mechanism, and a pressing mechanism is arranged at the upper end of the pressure chamber; the feeding and discharging combined mechanism can automatically feed materials into the pressing chamber, the ventilation pipe is arranged while feeding the materials, so that the raw materials are quickly and uniformly distributed in the pressing chamber, and the blockage of a discharge port is avoided.)

1. The utility model provides an automatic screw press with safeguard function, includes support frame (1), its characterized in that: the supporting frame (1) upper end is provided with pressure bearing frame (2), pressure bearing frame (2) upper portion is provided with presses room (3), press room (3) lower extreme to be provided with material loading ejection of compact combined mechanism (4), material loading ejection of compact combined mechanism (4) lower extreme is provided with prevents excessive pressure mechanism (5), press room (3) upper end is provided with down pushing mechanism (6).

2. The automatic screw press with safeguard function according to claim 1, characterized in that: the feeding and discharging composite mechanism (4) comprises a storage bin (7), a conveying pipe (8), a rotating rod (9), a spiral conveying plate (10), a feeding hole (11), a discharging hole (12), a discharging mechanism (13) and an air inlet pipe (14), wherein the lower end of a pressing chamber (3) is provided with the storage bin (7), the conveying pipe (8) is arranged in the storage bin (7), the rotating rod (9) is arranged in the conveying pipe (8), the spiral conveying plate (10) is arranged on the whole body of the rotating rod (9), the feeding hole (11) is formed in the lower end of the conveying pipe (8), the discharging hole (12) is formed in the upper end of the conveying pipe (8), the discharging mechanism (13) is arranged in the upper end of the rotating rod (9), the air inlet pipe (14) is arranged in the discharging mechanism (.

3. The automatic screw press with safeguard function according to claim 2, characterized in that: discharging mechanism (13) are including solid fixed cylinder (46), motor (15), dysmorphism screw rod (16), ejecting cylinder (17), guide cylinder (18), connecting rod (19), ejecting stopper (20), dwang (9) upper end is provided with solid fixed cylinder (46), gu fixed cylinder (46) inside is provided with motor (15), motor (15) upper end is provided with dysmorphism screw rod (16), ejecting cylinder (17) have been cup jointed to dysmorphism screw rod (16) outside, ejecting cylinder (17) outside has cup jointed guide cylinder (18), ejecting cylinder (17) upper end is provided with connecting rod (19), connecting rod (19) upper end is provided with ejecting stopper (20), ejecting stopper (20) pass the bottom of pressing chamber (3).

4. The automatic screw press with safeguard function according to claim 3, characterized in that: the special-shaped screw is characterized in that internal threads are arranged in the ejection barrel (17), a first one-way stop (21) is arranged at the lower end of the special-shaped screw (16), a first stop groove (22) is formed in the ejection barrel (17) at a position corresponding to the first one-way stop (21), a second one-way stop (23) is arranged at the upper end of the special-shaped screw (16), and a second stop groove (24) is formed in the ejection barrel (17) at a position corresponding to the second one-way stop (23).

5. The automatic screw press with safeguard function according to claim 3, characterized in that: the inner wall of the guide cylinder (18) is provided with a vertical groove (25), the inner wall of the guide cylinder (18) is provided with an annular groove (26), the vertical groove (25) is communicated with the annular groove (26), the outer wall of the ejection cylinder (17) is provided with a guide column (27) at a position corresponding to the vertical groove (25), and a movable stop (28) is arranged at the joint of the vertical groove (25) and the annular groove (26).

6. The automatic screw press with safeguard function according to claim 5, characterized in that: the movable stop (28) comprises a fan-shaped groove (29), a stop bar (30) and a torsion spring (31), the joint of the vertical groove (25) and the ring groove (26) is provided with the fan-shaped groove (29), the stop bar (30) is movably arranged in the fan-shaped groove (29), the stop bar (30) stretches into the ring groove (26), and the torsion spring (31) is arranged between the stop bar (30) and the fan-shaped groove (29).

7. The automatic screw press with safeguard function according to claim 3, characterized in that: outside fixed section of thick bamboo (46) was worn out in connecting rod (19), connecting rod (19) are hollow structure, the position of connecting rod (19) and fixed section of thick bamboo (46) contact is provided with vent (32), air-supply line (14) are located fixed section of thick bamboo (46) lateral wall, and communicate with vent (32), be provided with air outlet (33) on connecting rod (19) upper portion lateral wall.

8. The automatic screw press with safeguard function according to claim 1, characterized in that: the pressing mechanism (6) comprises a support pillar (34), a pressing plate (35), a fixing plate (36), a support plate (37), a servo motor (38), a screw (39) and a pressing block (40), supporting columns (34) are arranged at the corresponding positions of four corners of the pressure bearing frame (2), a lower pressing plate (35) is arranged at the upper end of the pressure bearing frame (2), a fixing plate (36) is arranged at the upper end of the lower pressing plate (35), a supporting plate (37) is arranged at the upper end of the fixing plate (36), a servo motor (38) is arranged at the upper end of the supporting plate (37), the output end of the servo motor (38) is provided with a screw rod (39), the screw rod (39) sequentially penetrates through the supporting plate (37), the fixing plate (36) and the lower pressing plate (35) to be screwed, the edge of the lower pressing plate (35) penetrates through the supporting column (34), and the lower end of the lower pressing plate (35) is connected with a pressing block (40).

9. The automatic screw press with safeguard function according to claim 8, characterized in that: prevent excessive pressure mechanism (5) including supporting legs (41), dish spring (42), spliced pole (43), spring (44), pressure-bearing foot (45), pressure-bearing frame (2) lower extreme is provided with a plurality of supporting legs (41), be provided with a plurality of dish springs (42) in supporting legs (41), dish spring (42) upper end is provided with spliced pole (43), spliced pole (43) upper end and pressure-bearing frame (2) fixed connection, spring (44) have all been cup jointed on support column (34), spring (44) upper end is provided with pressure-bearing foot (45).

10. The automatic screw press with safeguard function according to claim 9, characterized in that: one end of the pressure bearing pin (45) is sleeved on the connecting column (43), and the other end of the pressure bearing pin (45) is positioned at the lower end of the pressure bearing frame (2).

Technical Field

The invention relates to the technical field of screw presses, in particular to an automatic screw press with a protection function.

Background

The screw press is a generic name of a press machine which generates a pressurizing form by rotating more than one group of outer bolts and inner bolts in a frame, and is mainly applied to processing various high, medium and low-grade refractory molded products or processing and molding various metal material products (cold and hot forging processing, cold forging of thin forgings, casting and forging), has the functions of various forging machines such as a die forging hammer, a mechanical press and the like, has strong universality, simple structure and easy manufacture, is widely applied, and has certain defects in the conventional screw press for press molding crushed aggregates:

firstly, the existing screw press needs manual feeding, the feeding precision and the feeding time are difficult to control accurately, so that the quality of the products formed by pressing is different, the position of a stock bin is higher, and the feeding is very inconvenient;

secondly, after the existing screw press is fed, the raw materials in the pressing chamber are not uniform, and the phenomenon of uneven product density is easy to occur in the direct pressing process;

third, when the existing screw press presses products, if the pressing pressure is too large due to the conditions of screw looseness, motor damage and the like, the device can be damaged, and great loss is caused.

The invention discloses an automatic screw press with a protection function, which is used for solving the problems.

Disclosure of Invention

The invention aims to provide an automatic screw press with a protection function, so as to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: an automatic screw press with a protection function comprises a support frame, wherein a pressure bearing frame is arranged at the upper end of the support frame, a pressure chamber is arranged at the upper part of the pressure bearing frame, a feeding and discharging composite mechanism is arranged at the lower end of the pressure chamber, the feeding and discharging composite mechanism can automatically feed materials into the pressure chamber, a vent pipe is arranged at the same time of feeding, so that the raw materials are quickly and uniformly distributed in the pressure chamber, and the blockage of a discharge port is avoided at the same time. The upper end of the pressing chamber is provided with a pressing mechanism, and the pressing mechanism is used for providing downward pressure to press and form the raw materials in the pressing chamber.

Preferably, the feeding and discharging composite mechanism comprises a storage bin, a material conveying pipe, a rotating rod, a spiral material conveying plate, a feeding port, a discharging mechanism and an air inlet pipe, wherein the storage bin is arranged at the lower end of the pressure chamber and used for containing raw materials, the material conveying pipe is arranged in the storage bin and is of a cylindrical structure, the lower end of the material conveying pipe is fixed in the storage bin, the upper end of the material conveying pipe is fixed at the lower end of the pressure chamber, the rotating rod is arranged in the material conveying pipe and penetrates out of the material conveying pipe, the lower end of the material conveying pipe is driven to rotate by a motor, the spiral material conveying plate is arranged around the rotating rod, the rotating rod drives the spiral material conveying plate to rotate and uniformly convey the raw materials to the discharging port, the feeding port is arranged at the lower end of the material, in the discharging stage, the discharging mechanism is used for ejecting out finished products, an air inlet pipe is arranged in the discharging mechanism and used for introducing external wind power into the discharging mechanism, the discharging mechanism is communicated with the inside and the outside, the air inlet pipe is used for transmitting the wind power into the discharging mechanism, and then the discharging mechanism gives the wind power to the raw materials so that the raw materials are uniformly laid in the pressing chamber.

Preferably, the discharging mechanism comprises a fixed cylinder, a motor, a special-shaped screw rod, an ejection cylinder, a guide cylinder, a connecting rod and an ejection plug, the fixed cylinder is arranged at the upper end of the rotating rod and fixed in the material conveying pipe, the motor is arranged in the fixed cylinder, the special-shaped screw rod is arranged at the upper end of the motor and drives the special-shaped screw rod to rotate, the ejection cylinder is sleeved outside the special-shaped screw rod, the special-shaped screw rod and the ejection cylinder are in threaded connection, the guide cylinder is sleeved outside the ejection cylinder and used for guiding the ejection cylinder to vertically move up and down, the connecting rod is arranged at the upper end of the ejection cylinder, the ejection plug is arranged at the upper end of the connecting rod and penetrates through the bottom of the pressure chamber, and the ejection cylinder drives the ejection plug to vertically move up and down through the connecting rod and further drives the ejection plug to move so as to complete the ejection.

Preferably, internal threads are arranged in the ejection cylinder, a first one-way stop is arranged at the lower end of the special-shaped screw rod, a first stop groove is arranged at a position in the ejection cylinder corresponding to the first one-way stop, a second one-way stop is arranged at the upper end of the special-shaped screw rod, a second stop groove is arranged at a position in the ejection cylinder corresponding to the second one-way stop, the first one-way stop and the second one-way stop are opposite in direction, in the feeding stage, the special-shaped screw rod and the ejection cylinder are in threaded connection to enable the ejection cylinder to move upwards, when the second one-way stop and the second stop groove are mutually overlapped, the ejection cylinder and the special-shaped screw rod are locked, the ejection cylinder does not move upwards any more, the special-shaped screw rod drives the ejection cylinder to perform rotary motion, and wind power transmitted to the air inlet pipe in the discharging mechanism is uniformly dispersed to the periphery of the outside of the discharging mechanism; after the feeding is finished, the special-shaped screw rod and the ejection barrel are in threaded connection movement, the ejection barrel moves downwards, when the first one-way stop and the first stop groove are mutually overlapped, the ejection barrel and the special-shaped screw rod are locked, namely the ejection barrel returns, and the raw materials around the discharge port are blown away while the ejection barrel returns, so that the raw materials are prevented from being blocked.

Preferably, a vertical groove is formed in the inner wall of the guide cylinder, an annular groove is formed in the inner wall of the guide cylinder, the vertical groove is communicated with the annular groove, a guide post is arranged at a position, corresponding to the vertical groove, of the outer wall of the ejection cylinder, a movable stopper is arranged at the joint of the vertical groove and the annular groove and used for limiting the one-way rotation of the guide post, during a loading stage, the special-shaped screw rod and the ejection cylinder are in threaded connection movement, the ejection cylinder is in vertical upward movement under the guide of the guide post and the vertical groove until the second one-way stopper of the ejection cylinder and the second stopper groove are mutually overlapped, the ejection cylinder is locked with the special-shaped screw rod and does not move upwards any more, and the ejection cylinder is in rotational movement under the guide of the guide post; after the feeding is finished, the special-shaped screw rod rotates reversely to drive the ejection barrel to rotate reversely, until the guide column meets the movable stop, the guide column enters the vertical groove by interference of the movable stop, and the ejection barrel returns under the guide of the guide column and the vertical groove.

Preferably, the activity stop includes sector groove, blend stop, torsional spring, it is provided with sector groove to erect groove and annular junction, sector inslot activity is provided with the blend stop, blend stop swing joint is in sector groove, the blend stop stretches into in the annular, be provided with the torsional spring between blend stop and the sector groove, torsional spring one end supports in sector groove lateral wall, and the other end supports on the blend stop for the guide post can only move along an annular direction.

Preferably, the connecting rod is worn out outside the fixed cylinder, the connecting rod is hollow structure, the position that connecting rod and fixed cylinder contacted is provided with the vent, the air-supply line is located the fixed cylinder lateral wall, and communicates with the vent, when the connecting rod rotated, vent and air-supply line continued the intercommunication, let in wind-force in the connecting rod, be provided with the air outlet on the lateral wall of connecting rod upper portion, wind-force blows the raw materials to the discharge gate through the air outlet, blows in the pressure chamber with the raw materials.

Preferably, the pressing mechanism comprises a supporting column, a pressing plate, a fixing plate, a supporting plate, a servo motor, a screw and a pressing block, supporting columns are arranged at the positions corresponding to the four corners of the pressure bearing frame and are used for supporting the pressing mechanism, meanwhile, the lower pressure plate is guided to move stably, the lower pressure plate is arranged at the upper end of the pressure bearing frame, the fixed plate is arranged at the upper end of the lower pressure plate, a supporting plate is arranged at the upper end of the fixing plate, a servo motor is arranged at the upper end of the supporting plate, a screw rod is arranged at the output end of the servo motor, the screw rod sequentially penetrates through the supporting plate, the fixing plate and the lower pressing plate to be in threaded connection, the edge of the lower pressing plate penetrates through the supporting column, the lower end of the lower pressing plate is connected with a pressing block, when a product is pressed, the servo motor drives the screw rod to rotate, the screw rod and the lower pressing plate are in threaded connection movement, the lower pressing plate is driven to press downwards, and then the pressing block is driven to press downwards to enter the pressing chamber to press and form the raw material.

Preferably, the overpressure preventing mechanism comprises supporting legs, disc springs, connecting columns, springs and pressure-bearing legs, the lower end of the pressure-bearing frame is provided with a plurality of supporting legs, the supporting legs are internally provided with a plurality of disc springs, the upper ends of the disc springs are provided with the connecting columns, the upper ends of the connecting columns are fixedly connected with the pressure-bearing frame, the springs are sleeved on the supporting columns, the upper ends of the springs are provided with the pressure-bearing legs, the pressure-bearing legs are automatically broken when the pressure-bearing legs are under certain pressure, when the pressure of the overpressure preventing mechanism is too high, the pressure-bearing legs are broken, the elasticity of the springs is released and extended, the upper ends of the springs are contacted with the lower pressing plate, the lower pressing plate is prevented from continuously pressing down, the pressure of the pressure-bearing frame is accepted by the connecting columns.

Preferably, one end of the pressure-bearing foot is sleeved on the connecting column, and the other end of the pressure-bearing foot is positioned at the lower end of the pressure-bearing frame.

Compared with the prior art, the invention has the following beneficial effects:

1. the feeding and discharging combined mechanism disclosed by the invention can automatically feed materials into the pressing chamber, and the ventilation pipe is arranged while feeding the materials, so that the pressing chamber is quickly and uniformly full of the raw materials, and the blockage of a discharge port is avoided;

2. when the pressure of the pressing mechanism is overlarge, the pressure-bearing foot of the overpressure-preventing mechanism is broken, the elasticity of the spring is released and extended, the upper end of the spring is contacted with the lower pressing plate, the lower pressing plate is prevented from being pressed downwards continuously, the pressure of the pressing frame is borne by the connecting column, and the connecting column moves downwards under the buffer action of the disc spring, so that the feeding and discharging composite mechanism in the pressing frame is prevented from being damaged;

3. in the feeding stage, the special-shaped screw rod and the ejection barrel are in threaded connection movement, the ejection barrel is vertically moved upwards under the guide of the guide column and the vertical groove until the second one-way stop and the second stop groove of the ejection barrel are mutually overlapped, the ejection barrel and the special-shaped screw rod are locked, the ejection barrel does not move upwards any more, the ejection barrel is in rotary movement under the guide of the guide column and the annular groove, and the wind power conveyed into the discharging mechanism by the air inlet pipe is uniformly dispersed to the periphery of the outside of the discharging mechanism to assist feeding.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of an automatic screw press with a safeguard function according to the present invention;

FIG. 2 is a cross-sectional view of the feeding and discharging compound mechanism of the present invention;

FIG. 3 is a cross-sectional view of the discharge mechanism of the present invention;

FIG. 4 is a cross-sectional view of the guide cylinder of the present invention;

FIG. 5 is a detail view of the movable stop of the present invention;

FIG. 6 is a schematic view of the hold-down mechanism of the present invention;

FIG. 7 is a schematic structural view of the overpressure prevention mechanism of the present invention;

in the figure: 1. a support frame; 2. a pressure bearing frame; 3. a pressure chamber; 4. a feeding and discharging compound mechanism; 5. an overpressure prevention mechanism; 6. a pressing mechanism; 7. a storage bin; 8. a material conveying pipe; 9. rotating the rod; 10. a spiral material conveying plate; 11. a feed inlet; 12. a discharge port; 13. a discharging mechanism; 14. an air inlet pipe; 15. a motor; 16. a screw; 17. ejecting the cylinder; 18. a guide cylinder; 19. a connecting rod; 20. ejecting the plug; 21. a first one-way stop; 22. a first stop groove; 23. a second one-way stop; 24. a second stop groove; 25. a vertical slot; 26. a ring groove; 27. a guide post; 28. a movable stop; 29. a sector groove; 30. blocking strips; 31. a torsion spring; 32. a vent; 33. an air outlet; 34. a support pillar; 35. a lower pressing plate; 36. a fixing plate; 37. a support plate; 38. a servo motor; 39. a screw; 40. briquetting; 41. supporting legs; 42. a disc spring; 43. connecting columns; 44. a spring; 45. a pressure bearing pin; 46. and (4) fixing the cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): the invention provides a technical scheme, as shown in figure 1, an automatic screw press with a protection function comprises a support frame 1, a pressure bearing frame 2 is arranged at the upper end of the support frame 1, a pressure chamber 3 is arranged at the upper part of the pressure bearing frame 2, a feeding and discharging composite mechanism 4 is arranged at the lower end of the pressure chamber 3, the feeding and discharging composite mechanism 4 can automatically feed materials into the pressure chamber 3, a vent pipe is arranged at the same time of feeding, so that the raw materials are quickly and uniformly distributed in the pressure chamber 3, the blockage of a discharge port is avoided, a bin is low in position by the feeding method, manual feeding is facilitated, manpower is saved, products can be ejected after the products are pressed, the products are convenient to discharge, an overpressure prevention mechanism 5 is arranged at the lower end of the feeding and discharging composite mechanism 4, and a pressing mechanism 6 can cause the damage of the device if the pressing pressure is too high due to the conditions of screw loosening, motor damage and the, cause great loss, prevent that excessive pressure mechanism 5 can avoid the device to damage, press chamber 3 upper end to be provided with down and press mechanism 6, press mechanism 6 is used for providing the downforce and presses the raw materials press forming in the chamber 3.

Referring to fig. 2 and 3, the feeding and discharging composite mechanism 4 includes a material bin 7, a material transporting pipe 8, a rotating rod 9, a spiral material transporting plate 10, a feeding port 11, a discharging port 12, a discharging mechanism 13, and an air inlet pipe 14, wherein the material bin 7 is disposed at the lower end of the pressure chamber 3, the material bin 7 is used for holding a raw material, the material transporting pipe 8 is disposed in the material bin 7, the material transporting pipe 8 is of a cylindrical structure, the lower end of the material transporting pipe is fixed in the material bin 7, the upper end of the material transporting pipe is fixed at the lower end of the pressure chamber 3, the rotating rod 9 is disposed in the material transporting pipe 8, the rotating rod 9 penetrates out of the material transporting pipe 8, the lower end of the material transporting pipe is driven by a motor to rotate, the spiral material transporting plate 10 is disposed around the rotating rod 9, the rotating rod 9 drives the spiral material transporting plate 10 to rotate, the raw material is uniformly, in the discharging stage, the discharging mechanism 13 is internally provided with an air inlet pipe 14, the air inlet pipe 14 is used for introducing external wind power into the discharging mechanism 13, the discharging mechanism 13 is communicated with the inside and the outside, the air inlet pipe 14 is used for transmitting the wind power into the discharging mechanism 13, and then the raw material is given by the wind power through the discharging mechanism 13, so that the raw material is uniformly paved in the pressure chamber 3.

As shown in fig. 3, the discharging mechanism 13 comprises a fixed cylinder 46, a motor 15, a profiled screw 16 and an ejector cylinder 17, the ejection mechanism comprises a guide cylinder 18, a connecting rod 19 and an ejection plug 20, a fixed cylinder 46 is arranged at the upper end of a rotating rod 9, the fixed cylinder 46 is fixed in a material conveying pipe 8, a motor 15 is arranged inside the fixed cylinder 46, a special-shaped screw 16 is arranged at the upper end of the motor 15, the motor 15 drives the special-shaped screw 16 to rotate, the ejection cylinder 17 is sleeved outside the special-shaped screw 16, the special-shaped screw 16 and the ejection cylinder 17 are in threaded connection movement, the guide cylinder 18 is sleeved outside the ejection cylinder 17, the guide cylinder 18 is used for guiding the ejection cylinder 17 to vertically move up and down, the connecting rod 19 is arranged at the upper end of the ejection cylinder 17, the ejection plug 20 is arranged at the upper end of the connecting rod 19, the ejection plug 20 penetrates through the bottom of a pressure chamber 3, the ejection cylinder 17 drives the ejection plug 20 to vertically move up and down through the.

Referring to fig. 3, an internal thread is arranged in the ejection cylinder 17, a first one-way stop 21 is arranged at the lower end of the special-shaped screw 16, a first stop groove 22 is arranged at a position in the ejection cylinder 17 corresponding to the first one-way stop 21, a second one-way stop 23 is arranged at the upper end of the special-shaped screw 16, a second stop groove 24 is arranged at a position in the ejection cylinder 17 corresponding to the second one-way stop 23, the first one-way stop 21 and the second one-way stop 23 are opposite in stop direction, during the feeding stage, the special-shaped screw 16 and the ejection barrel 17 are in threaded connection, so that the ejection barrel 17 moves upwards, when the second one-way stop 23 and the second stop groove 24 are mutually lapped, the ejection barrel 17 and the special-shaped screw 16 are locked, the ejection barrel 17 does not move upwards, the special-shaped screw 16 drives the ejection barrel 17 to rotate, wind power conveyed into the discharging mechanism 13 by the air inlet pipe 14 is uniformly dispersed to the periphery of the outer part of the discharging mechanism 13, and feeding is assisted; after the feeding is finished, the special-shaped screw 16 and the ejection barrel 17 are in threaded connection movement, so that the ejection barrel 17 moves downwards, when the first one-way stop 21 and the first stop groove 22 are mutually overlapped, the ejection barrel 17 and the special-shaped screw 16 are locked, namely the ejection barrel 17 returns, and the raw materials around the discharge port 12 are blown away while the ejection barrel 17 returns, so that the raw materials are prevented from being blocked.

As shown in fig. 3 and 4, a vertical groove 25 is formed in the inner wall of the guide cylinder 18, an annular groove 26 is formed in the inner wall of the guide cylinder 18, the vertical groove 25 is communicated with the annular groove 26, a guide post 27 is arranged in a position, corresponding to the vertical groove 25, on the outer wall of the ejection cylinder 17, a movable stopper 28 is arranged at the joint of the vertical groove 25 and the annular groove 26, the movable stopper 28 is used for limiting the one-way rotation of the guide post 27, during the loading stage, the profiled screw rod 16 and the ejection cylinder 17 are in threaded connection, the ejection cylinder 17 is vertically moved upwards under the guide of the guide post 27 and the vertical groove 25 until the second one-way stopper 23 and the second stopper groove 24 of the ejection cylinder 17 are mutually overlapped, the ejection cylinder 17 and the profiled screw rod 16 are locked, the ejection cylinder 17 is not moved upwards, and the ejection cylinder 17 is rotationally moved under the; after the feeding is finished, the special-shaped screw 16 reversely rotates to drive the ejection barrel 17 to reversely rotate until the guide column 27 meets the movable stop 28, the guide column is interfered by the movable stop 28 to enter the vertical slot 25, and the ejection barrel 17 returns under the guide of the guide column 27 and the vertical slot 25.

As shown in fig. 5, the movable stopper 28 includes a sector groove 29, a stop strip 30, and a torsion spring 31, the sector groove 29 is disposed at the connection position of the vertical groove 25 and the circular groove 26, the stop strip 30 is movably disposed in the sector groove 29, the stop strip 30 is movably connected in the sector groove 29, the stop strip 30 extends into the circular groove 26, the torsion spring 31 is disposed between the stop strip 30 and the sector groove 29, one end of the torsion spring 31 abuts against the side wall of the sector groove 29, and the other end abuts against the stop strip 30, so that the guide post 27 can only move along one direction of the circular groove 26.

As shown in fig. 3, the connecting rod 19 penetrates out of the fixed cylinder 46, the connecting rod 19 is of a hollow structure, a vent 32 is arranged at a position where the connecting rod 19 contacts with the fixed cylinder 46, the air inlet pipe 14 is positioned in the side wall of the fixed cylinder 46 and is communicated with the vent 32, when the connecting rod 19 rotates, the vent 32 is continuously communicated with the air inlet pipe 14, wind power is introduced into the connecting rod 19, an air outlet 33 is arranged on the side wall of the upper part of the connecting rod 19, and the wind power blows the raw material of the discharge hole 12 through the air outlet 33 to blow the raw material into.

As shown in fig. 6, the pressing mechanism 6 includes supporting columns 34, a pressing plate 35, a fixing plate 36, a supporting plate 37, a servo motor 38, a screw 39 and a pressing block 40, the supporting columns 34 are disposed at positions corresponding to four corners of the pressure bearing frame 2, the supporting columns 34 are used for supporting the pressing mechanism 6 and guiding the pressing plate 35 to move stably, the pressing plate 35 is disposed at the upper end of the pressure bearing frame 2, the fixing plate 36 is disposed at the upper end of the pressing plate 35, the supporting plate 37 is disposed at the upper end of the fixing plate 36, the servo motor 38 is disposed at the upper end of the supporting plate 37, the screw 39 is disposed at the output end of the servo motor 38, the screw 39 sequentially penetrates through the supporting plate 37, the fixing plate 36 and the pressing plate 35 to be screwed, the edge of the pressing plate 35 penetrates through the supporting columns 34, the pressing block 40 is connected to the lower end of the pressing plate 35, the, and then the pressing block 40 is driven to press and enter the pressing chamber 3 to press and form the raw material.

As shown in fig. 7, the overpressure prevention mechanism 5 includes a support leg 41, a disc spring 42, a connection column 43, a spring 44, a pressure-bearing leg 45, a plurality of support legs 41 are provided at the lower end of the pressure-bearing frame 2, a plurality of disc springs 42 are provided in the support legs 41, a connection column 43 is provided at the upper end of the disc springs 42, the upper end of the connection column 43 is fixedly connected with the pressure-bearing frame 2, the spring 44 is sleeved on the support column 34, a pressure-bearing leg 45 is provided at the upper end of the spring 44, the pressure-bearing leg 45 is automatically broken when a certain pressure is applied to the pressure-bearing leg 45, when the pressure of the pressure-bearing mechanism 6 is too high, the pressure-bearing leg 45 is broken, the elastic force of the spring 44 is released and extended, the upper end contacts the lower press plate 35, continuous pressing of the lower press plate 35 is prevented, the pressure of.

As shown in fig. 7, one end of the pressure foot 45 is sleeved on the connecting column 43, and the other end is located at the pressure foot 45 at the lower end of the pressure bearing frame 2.

The working principle of the invention is as follows: firstly, starting a feeding and discharging composite mechanism 4 to feed materials into a pressure chamber 3, starting a pressing mechanism 6 to press raw materials into a product after the feeding is finished, and finally starting the feeding and discharging composite mechanism 4 to push the product out of the pressure chamber 3, wherein when the pressing mechanism 6 presses down, an overpressure prevention mechanism 5 protects the feeding and discharging composite mechanism 4 from being damaged;

the principle of the feeding and discharging compound mechanism 4 is as follows: when feeding, the motor 15 drives the special-shaped screw 16 to rotate, the special-shaped screw 16 and the ejection barrel 17 perform a screwing motion, the ejection barrel 17 vertically moves upwards under the guidance of the guide columns 27 and the vertical grooves 25, the connecting rod 19 moves upwards, the ejection plug 20 is further driven to move upwards, the pressure chamber 3 is in an open state, the rotating rod 9 is started, the rotating rod 9 drives the spiral material conveying plate 10 to rotate, raw materials enter the material conveying pipe 8 from the material inlet 11 and are conveyed to the material outlet 12, then the motor 15 continuously rotates until the second one-way stop 23 and the second stop groove 24 of the ejection barrel 17 are mutually overlapped, the ejection barrel 17 and the special-shaped screw 16 are locked, the ejection barrel 17 does not move upwards any more, the ejection barrel 17 performs a rotating motion under the guidance of the guide columns 27 and the annular grooves 26, when the connecting rod 19 rotates, the vent 32 is continuously communicated with the air inlet pipe 14, wind power is introduced into the connecting rod 19, and the wind power is blown to the material, blowing the raw materials into the pressure chamber 3 to uniformly disperse the raw materials into the pressure chamber 3, thereby finishing feeding;

after the feeding is finished, the special-shaped screw 16 reversely rotates to drive the ejection barrel 17 to reversely rotate until the guide column 27 meets the movable stop 28 and is interfered by the movable stop 28 to enter the vertical slot 25, and the ejection barrel 17 returns under the guide of the guide column 27 and the vertical slot 25, so that the pressure chamber 3 is in a closed state;

when blanking is needed after the product is formed, the motor 15 drives the special-shaped screw rod 16 to rotate, the special-shaped screw rod 16 and the ejection cylinder 17 are in threaded connection movement, the ejection cylinder 17 is vertically moved upwards under the guidance of the guide column 27 and the vertical groove 25, the connecting rod 19 is driven to move upwards, the ejection plug 20 is driven to move upwards, and the product is ejected out of the pressure chamber 3;

the principle of the pressing mechanism 6 is as follows: when a product is pressed, the servo motor 38 drives the screw rod 39 to rotate, the screw rod 39 and the lower pressing plate 35 do threaded motion, the lower pressing plate 35 is driven to press downwards, and the pressing block 40 is driven to press downwards into the pressing chamber 3 to press and form the raw material;

the principle of the overpressure prevention mechanism 5 is as follows: when the pressure of the pressing mechanism 6 is too high, the pressure-bearing foot 45 is broken, the elastic force of the spring 44 is released to extend, the upper end of the spring contacts the lower pressing plate 35, the lower pressing plate 35 is prevented from being pressed continuously, the pressure of the pressure-bearing frame 2 is borne by the connecting column 43, the connecting column 43 moves downwards under the buffer action of the disc spring 42, and the feeding and discharging composite mechanism 4 in the pressure-bearing frame 2 is prevented from being damaged.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.