A bar forging device and method with air blowing auxiliary demolding

Abstract

The application discloses a bar forging device and method with blowing auxiliary demolding, which comprises a hydraulic forging device body, two groups of side plates are arranged on the hydraulic forging device body, a hydraulic lifting plate is arranged between the two groups of side plates, the hydraulic forging device body is further provided with a forging table, and the forging table is arranged directly below the hydraulic lifting plate; two groups of blowing cavities are arranged in the side plates, a movable through slot is further arranged on the side plate, a blowing assembly is arranged in the movable through slot, and the blowing assembly is arranged in the two groups of blowing cavities; the application has the beneficial effect that the blowing assembly is directly mechanically connected with the hydraulic lifting plate, the inherent lifting driving force of the forging device is used as the power source of the blowing assembly, the blowing assembly does not need to be additionally provided with an independent air pump or driving motor, and the blowing assembly can be synchronously linked in the reciprocating stroke of the hydraulic lifting plate, so that the blowing action is automatically triggered while the forging action is completed.

Description

Technical Field

[0001] This invention relates to a bar forging apparatus and method with air blowing assistance for demolding. Background Technology

[0002] Bar forging equipment is a commonly used piece of equipment in the field of metal plastic processing. It uses a hydraulic lifting plate to drive the upper die to reciprocate up and down, and to forge and stamp the bar placed on the forging table to form it into the required cross-sectional shape.

[0003] During the forging process, due to the effects of high temperature, high pressure, and metal oxide scale, the surface of the bar stock or die is prone to adhesion to the forging table, making demolding difficult. The traditional method is to rely on a mechanical ejection mechanism for demolding, or for operators to manually pry it off with auxiliary tools, which is not only inefficient but also easily damages the surface of the workpiece and the die. To address these issues, some existing technologies propose attaching an independent air pump or air-blowing pipeline to the side of the forging device to clean the surface of the forging table and assist in demolding by blowing compressed air. However, such solutions have several drawbacks: First, the external air-blowing device requires an additional independent power source (air pump or motor) and a complex piping system, resulting in high energy consumption and increased costs. Second, the external pipeline occupies external space, has a loose structure, and is not conducive to workshop layout. Third, the start and stop of the air-blowing action usually rely on manual control by the operator or solenoid valve timing control, which is difficult to keep precisely synchronized with the forging stroke, resulting in response delay and affecting the consistency of demolding effect. Fourth, the large amount of oxide scale and metal debris generated during forging can easily penetrate the sliding fit gaps of moving parts such as side plates, accelerating the wear of the guide mechanism and shortening the service life of the equipment. In view of this, the present invention proposes a bar forging device and method with air-blowing assisted demolding to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a bar forging apparatus and method with air blowing-assisted demolding, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A bar forging device with air-assisted demolding includes a hydraulic forging device body, the hydraulic forging device body is provided with two sets of side plates, a hydraulic lifting plate is provided between the two sets of side plates, and the hydraulic forging device body is also provided with a forging table, the forging table is located directly below the hydraulic lifting plate.

[0007] Two sets of air blowing chambers are provided in the side plate. A movable through groove is also provided in the side plate. An air blowing assembly is provided in the movable through groove. The air blowing assembly is located in the two sets of air blowing chambers. The air blowing assembly is also connected to a hydraulic lifting plate, so that the air blowing assembly reciprocates in the air blowing chamber to generate flowing gas and blow it toward the forging table.

[0008] As an improvement to the above technical solution, the air blowing assembly includes a guide rod, which is vertically arranged in the movable through groove;

[0009] The outer wall of the guide rod is slidably fitted with a guide sleeve, and each end of the guide sleeve is provided with a movable rod;

[0010] The guide sleeve is also provided with a fixing plate, which is connected to the side wall of the hydraulic lifting plate.

[0011] As an improvement to the above technical solution, the movable channel is symmetrically provided with two sets of movable sidewalls, and the movable sidewalls are provided with movable channels. The movable channels are matched with the blowing chamber and are connected to the blowing chamber.

[0012] As an improvement to the above technical solution, the movable rod is slidably disposed in the movable through groove, and a connecting rod is provided on the movable rod, with connecting rubber blocks provided at both ends of the connecting rod;

[0013] The air blowing chamber is provided with a first air blowing section and a second air blowing section. The first air blowing section and the second air blowing section are respectively located on both sides of the movable through groove. The two sets of connecting rubber blocks are respectively slidably disposed in the first air blowing section and the second air blowing section, and the two sets of connecting rubber blocks are respectively in close contact with the interior of the first air blowing section and the second air blowing section.

[0014] As an improvement to the above technical solution, the first air blowing part is provided with a first air inlet channel and a first air outlet channel. The first air inlet channel and the first air outlet channel are symmetrically arranged, and the first air outlet channel is arranged towards the hydraulic lifting plate.

[0015] The first air intake channel is configured to penetrate the side panel, while the first air outlet channel is configured not to penetrate the side panel.

[0016] As an improvement to the above technical solution, the side plate is provided with two sets of first air outlet extension pipes, the two sets of first air outlet extension pipes are respectively matched with the positions of two sets of first air outlet channels, and the first air outlet channels are connected to the first air outlet extension pipes.

[0017] The side plate has multiple sets of first air outlets, which are connected to two sets of first air outlet extension pipes. The first air outlets are oriented toward the forging table.

[0018] As an improvement to the above technical solution, the second air blowing part is provided with a second air inlet channel and a second air outlet channel. The second air inlet channel and the second air outlet channel are symmetrically arranged, and the second air outlet channel is arranged towards the hydraulic lifting plate.

[0019] The second air intake channel is configured to penetrate the side panel, while the second air outlet channel is configured not to penetrate the side panel.

[0020] As an improvement to the above technical solution, the side plate is provided with two sets of second air outlet extension pipes, the two sets of second air outlet extension pipes are respectively matched with the positions of two sets of second air outlet channels, and the second air outlet channels are connected to the second air outlet extension pipes.

[0021] The side plate has multiple sets of second air vents, which are connected to two sets of second air vent extension pipes. The second air vents are oriented toward the guide sleeve.

[0022] As an improvement to the above technical solution, a one-way air intake valve is provided in the first air intake channel, the first air outlet channel, the second air intake channel, and the second air outlet channel.

[0023] A method of using a bar forging device with air-blowing assisted demolding includes the following steps:

[0024] S10: Place the bar stock to be forged on the forging table, start the hydraulic forging device body, and make the hydraulic lifting plate move downward in the vertical direction to apply forging load to the bar stock on the forging table;

[0025] S20: During the downward movement of the hydraulic lifting plate, the guide sleeve is driven to slide down synchronously along the guide rod by the fixed plate. The guide sleeve drives the moving rods set at both ends to slide down synchronously in the moving through slot. The moving rod drives the connecting rubber block located in the second blowing part to slide down along the inner wall of the second blowing part and compress the gas in the second blowing part through the connecting rod. The compressed gas enters the second outlet extension pipe through the one-way inlet valve in the second outlet channel and is finally sprayed out synchronously by multiple sets of second outlet holes, forming an air shield wall at the moving through slot, preventing impurities generated during the forging process from entering the interior of the moving through slot.

[0026] S30: During the downward movement of the hydraulic lifting plate, the connecting rubber block located in the first air blowing section slides down synchronously, creating a negative pressure in the first air blowing section. Outside air is drawn into the first air blowing section through the one-way air intake valve in the first air intake channel, completing the air intake and energy storage.

[0027] S40: After the forging loading is completed, the hydraulic lifting plate moves upward in the vertical direction to unload the forging.

[0028] S50: During the upward movement of the hydraulic lifting plate, the guide sleeve is driven to slide upward synchronously along the guide rod by the fixed plate. The guide sleeve drives the moving rod and the connecting rod to move upward synchronously. The connecting rod drives the connecting rubber block located in the first air blowing section to slide upward along the inner wall of the first air blowing section and compress the gas in the first air blowing section. The compressed gas enters the first air outlet extension pipe through the one-way air inlet valve in the first air outlet channel. Finally, it is sprayed synchronously towards the forging table through multiple sets of first air outlet holes to blow and clean the surface of the forging table and the bar, remove oxide scale and impurities between the interfaces, and reduce the initial demolding resistance between the bar and the forging table.

[0029] S60: During the upward movement of the hydraulic lifting plate, the connecting rubber block located in the second air blowing section moves upward synchronously, creating a negative pressure in the second air blowing section. Outside air is drawn into the second air blowing section through the one-way air intake valve in the second air intake channel, completing the intake and energy storage, and preparing for the air curtain shielding in the next forging loading stroke.

[0030] S70: Repeat steps one through six above until all forging processes are completed.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] By directly mechanically connecting the air blowing assembly to the hydraulic lifting plate, the present invention utilizes the inherent lifting driving force of the forging device as the power source of the air blowing assembly. This eliminates the need for an additional independent air pump or drive motor, allowing the air blowing assembly to move synchronously in the reciprocating stroke of the hydraulic lifting plate. As a result, the air blowing action is automatically triggered while the forging action is completed. This structural design effectively reduces equipment energy consumption and manufacturing costs, and achieves coordinated driving of the forging process and the demolding auxiliary process, resulting in good energy saving and consumption reduction effects.

[0033] The blowing chamber is placed inside the side plate, and the blowing assembly is slidably set in the movable through groove and blowing chamber on the side plate, so that the entire blowing auxiliary structure is highly integrated inside the hydraulic forging device body. This layout avoids the additional occupation of the overall size of the equipment by the external blowing device, significantly improves the space utilization of the device, and makes the overall structure of the equipment more compact and the layout more reasonable, which is conducive to implementation in a limited installation space.

[0034] Because the air blowing assembly moves synchronously with the hydraulic lifting plate, the air blowing assembly moves within the cavity and generates flowing gas that is blown toward the forging table as the hydraulic lifting plate is raised after each forging impact. This linkage mechanism ensures that the air blowing action follows each forging deformation, realizing integrated continuous operation of forging and air blowing. It can promptly remove oxide scale or debris from the surface of the forging table or mold, and can effectively reduce the initial resistance of demolding and improve demolding smoothness by interfering with the interface contact state through airflow, significantly improving the real-time performance and effectiveness of demolding. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of the present invention;

[0036] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A;

[0037] Figure 3 This is a schematic diagram of the side plate structure of the present invention;

[0038] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point B;

[0039] Figure 5 This is a schematic diagram of the structure of the hydraulic lifting plate of the present invention;

[0040] Figure 6 This is a structural schematic diagram of the side plate of the present invention from another angle;

[0041] Figure 7 This is a side view of the side plate of the present invention;

[0042] Figure 8 For the present invention Figure 7 Sectional view of CC;

[0043] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point E;

[0044] Figure 10 For the present invention Figure 8 Enlarged structural diagram at point F;

[0045] Figure 11 For the present invention Figure 7 Sectional view of DD;

[0046] Figure 12 For the present invention Figure 11 A magnified structural diagram at point G in the middle;

[0047] Figure 13 For the present invention Figure 11 Enlarged structural diagram at point H;

[0048] Figure 14 For the present invention Figure 11 A magnified structural diagram of point I in the middle.

[0049] In the figure: 10. Hydraulic forging device body; 11. Side plate; 111. First air outlet; 112. Second air outlet; 113. First air inlet channel; 114. Second air inlet channel; 115. First air outlet extension pipe; 116. Second air outlet extension pipe; 12. Hydraulic lifting plate; 13. Forging table; 20. Movable through slot; 21. Moving through slot; 22. Movable side wall; 30. Air blowing assembly; 31. Fixed plate; 32. Guide rod; 33. Moving rod; 34. Guide sleeve; 35. Connecting rod; 36. Connecting rubber block; 40. Air blowing chamber; 41. First air blowing part; 411. First air outlet channel; 42. Second air blowing part; 421. Second air outlet channel. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] Example:

[0052] like Figure 1-14 As shown, this embodiment proposes a bar forging device with air-assisted demolding, including a hydraulic forging device body 10. The hydraulic forging device body 10 is provided with two sets of side plates 11, and a hydraulic lifting plate 12 is provided between the two sets of side plates 11. The hydraulic forging device body 10 is also provided with a forging table 13, which is located directly below the hydraulic lifting plate 12.

[0053] Two sets of air blowing chambers 40 are provided in the side plate 11. A movable through groove 20 is also provided on the side plate 11. An air blowing assembly 30 is provided in the movable through groove 20. The air blowing assembly 30 is provided in the two sets of air blowing chambers 40. The air blowing assembly 30 is also connected to the hydraulic lifting plate 12, so that the air blowing assembly 30 reciprocates in the air blowing chamber 40 to generate flowing gas that blows towards the forging table 13.

[0054] In this embodiment, when the hydraulic forging device body 10 forges the bar, the bar is placed on the forging table 13, and then the hydraulic lifting plate 12 continuously rises and falls to forge the bar. Of course, molds can be installed on the forging table 13 and the hydraulic lifting plate 12 to improve the forging process.

[0055] During the lifting and lowering process of the hydraulic lifting plate 12, the blowing assembly 30 is driven to move up and down in the blowing chamber 40, which generates flowing gas in the blowing chamber 40 and blows the gas towards the forging table 13.

[0056] By directly mechanically connecting the air blowing assembly 30 to the hydraulic lifting plate 12, the present invention utilizes the inherent lifting driving force of the forging device as the power source of the air blowing assembly. This allows the air blowing assembly 30 to be synchronously linked in the reciprocating stroke of the hydraulic lifting plate 12 without the need for an additional independent air pump or drive motor. Thus, the air blowing action is automatically triggered while the forging action is completed. This structural design effectively reduces equipment energy consumption and manufacturing costs, and realizes the coordinated driving of the forging process and the demolding auxiliary process, resulting in good energy saving and consumption reduction effects.

[0057] The air blowing chamber 40 is built into the side plate 11, and the air blowing assembly 30 is slidably disposed in the movable through groove 20 on the side plate 11 and the air blowing chamber 40, so that the entire air blowing auxiliary structure is highly integrated into the body 10 of the hydraulic forging device. This layout avoids the additional occupation of the overall size of the equipment by the external air blowing device, significantly improves the space utilization of the device, and makes the overall structure of the equipment more compact and the layout more reasonable, which is conducive to implementation in a limited installation space.

[0058] Because the air blowing assembly 30 and the hydraulic lifting plate 12 move synchronously, the air blowing assembly 30 immediately moves within the cavity and generates flowing gas that blows toward the forging table 13 as the hydraulic lifting plate 12 is lifted after each forging impact. This linkage mechanism ensures that the air blowing action follows each forging deformation, realizing integrated continuous operation of forging and air blowing. It can promptly remove oxide scale or debris from the surface of the forging table 13 or the mold, and can effectively reduce the initial resistance of demolding and improve demolding smoothness by interfering with the interface contact state through airflow, significantly improving the real-time performance and effectiveness of demolding.

[0059] Specifically, the air blowing assembly 30 includes a guide rod 32, which is vertically disposed in the movable through groove 20;

[0060] The outer wall of the guide rod 32 is slidably fitted with a guide sleeve 34, and the two ends of the guide sleeve 34 are respectively provided with moving rods 33;

[0061] The guide sleeve 34 is also provided with a fixing plate 31, which is connected to the side wall of the hydraulic lifting plate 12.

[0062] In this embodiment, by vertically fixing the guide rod 32 in the movable through groove 20 and sliding the guide sleeve 34 on its outer wall, a precision sliding fit pair is formed. This structure can provide strict vertical constraints on the overall lifting and lowering movement of the air blowing assembly 30, effectively limiting the radial sway or tilt that the moving rod 33 may produce during the reciprocating stroke.

[0063] Of course, through the cooperation of the guide sleeve 34 and the guide rod 32, the stability of the hydraulic lifting plate 12 reciprocating is effectively maintained. At the same time, the air blowing assembly 30 is mechanically linked with the return direction, converting the linear movement energy generated when the hydraulic lifting plate 12 is lifted in the vertical direction into the pressure potential energy required to drive the air blowing assembly 30 to compress the gas in the air blowing chamber 40. This allows the mechanical energy of the idle stroke that was originally wasted to be effectively utilized, thus optimizing the energy cascade utilization efficiency of the whole machine.

[0064] Specifically, the movable channel 20 is symmetrically provided with two sets of movable sidewalls 22, and the movable sidewalls 22 are provided with movable channels 21. The movable channels 21 are matched with the blowing chamber 40 in position, and the movable channels 21 are connected to the blowing chamber 40.

[0065] Specifically, the movable rod 33 is slidably disposed in the movable through groove 21, and a connecting rod 35 is provided on the movable rod 33, with connecting rubber blocks 36 provided at both ends of the connecting rod 35;

[0066] The air blowing chamber 40 is provided with a first air blowing section 41 and a second air blowing section 42. The first air blowing section 41 and the second air blowing section 42 are respectively disposed on both sides of the movable through groove 21. Two sets of connecting rubber blocks 36 are respectively slidably disposed in the first air blowing section 41 and the second air blowing section 42, and the two sets of connecting rubber blocks 36 are in close contact with the interior of the first air blowing section 41 and the second air blowing section 42.

[0067] In this embodiment, through the above-described structural configuration, the reciprocating motion of the moving rod 33 is synchronously transmitted to the connecting rubber blocks 36 on both sides via the connecting rod 35, realizing the simultaneous independent operation of both chambers with a single drive, which greatly improves the blowing efficiency. The tight sliding contact between the connecting rubber block 36 and the inner wall of the blowing chamber 40 ensures smooth movement while forming a reliable dynamic seal, ensuring that a high-speed airflow sufficient to assist in demolding is generated. The elastic compensation characteristics of the rubber material itself effectively reduce the requirements for processing and assembly precision, reduce sliding wear, and improve the durability of the device. The independent separation layout of the two blowing sections provides a structural basis for realizing multi-directional and multi-functional blowing timing control, significantly enhancing the adaptability of the device to different forging conditions.

[0068] Specifically, the first air blowing part 41 is provided with a first air inlet channel 113 and a first air outlet channel 411. The first air inlet channel 113 and the first air outlet channel 411 are symmetrically arranged, and the first air outlet channel 411 is arranged in the direction of the hydraulic lifting plate 12.

[0069] The first air intake channel 113 is disposed through the side plate 11, while the first air outlet channel 411 is disposed without penetrating the side plate 11.

[0070] Specifically, the side plate 11 is provided with two sets of first air outlet extension pipes 115, and the two sets of first air outlet extension pipes 115 are respectively matched with the positions of two sets of first air outlet channels 411, and the first air outlet channels 411 are connected to the first air outlet extension pipes 115.

[0071] The side plate 11 has multiple sets of first air outlet holes 111, which are connected to two sets of first air outlet extension pipes 115. The first air outlet holes 111 are arranged facing the forging table 13.

[0072] In this embodiment, through the above-mentioned structural setup, a forced unidirectional airflow path is constructed by utilizing the differentiated design of the first air intake channel 113 being through and the first air outlet channel 411 not being through, ensuring the efficient utilization of compressed gas; through the symmetrical layout of the air intake and air outlet channels, the first blowing part 41 can independently complete the intake and exhaust functions in the reciprocating stroke, ensuring the continuous and reliable blowing action.

[0073] Through the step-by-step flow distribution structure of the first air outlet extension pipe 115 and multiple sets of first air outlet holes 111, the concentrated airflow is evenly distributed to multiple spray points, expanding the purging coverage area and avoiding the dead zone defects of single-point spraying. At the same time, by oriented the first air outlet holes 111 toward the forging table 13, all airflow energy is precisely applied to the demolding interface, significantly improving the efficiency and reliability of airflow-assisted demolding. Furthermore, the entire airflow distribution pipe is integrated inside the side plate 11, making the structure more compact and reasonable, with good practicality and safety.

[0074] Specifically, the second air blowing part 42 is provided with a second air inlet channel 114 and a second air outlet channel 421. The second air inlet channel 114 and the second air outlet channel 421 are symmetrically arranged, and the second air outlet channel 421 is arranged towards the hydraulic lifting plate 12.

[0075] The second air intake channel 114 is disposed through the side plate 11, while the second air outlet channel 421 is disposed without penetrating the side plate 11.

[0076] Specifically, the side plate 11 is provided with two sets of second air outlet extension pipes 116, and the two sets of second air outlet extension pipes 116 are respectively matched with the positions of two sets of second air outlet channels 421, and the second air outlet channels 421 are connected to the second air outlet extension pipes 116.

[0077] The side plate 11 has multiple sets of second air outlets 112, which are connected to two sets of second air outlet extension pipes 116. The second air outlets 112 are arranged in the direction of the guide sleeve 34.

[0078] In this case, the two sets of second air outlet extension pipes 116 have overlapping portions, which disperse at the end position so as to supply air to multiple sets of second air outlets 112 at the same time.

[0079] In this embodiment, through the above-mentioned structural setup, the differentiated design of the second air inlet channel 114 penetrating and the second air outlet channel 421 not penetrating ensures the independent air pressure building capability of the second blowing section 42; through the two sets of second air outlet extension pipes 116 and their overlapping structure, the pressure balance of the two airflows and the synchronous air supply through multiple holes are realized, ensuring the continuous uniformity of the air curtain barrier.

[0080] By orienting the second vent 112 toward the guide sleeve 34, an air shield is formed at the movable through slot 20 at the moment of forging impact, which effectively prevents external contaminants from entering the precision sliding pair, significantly improving the service life and operational reliability of the guide mechanism.

[0081] Meanwhile, the second air blowing unit 42 and the first air blowing unit 41 work alternately during the downward and upward strokes of the hydraulic lifting plate 12, respectively, realizing the sequential coordinated function of protection during forging loading and demolding during unloading, further expanding the functional integration of the device, and having significant comprehensive practical value.

[0082] Specifically, one-way air intake valves are provided in the first air intake channel 113, the first air outlet channel 411, the second air intake channel 114, and the second air outlet channel 421.

[0083] In this embodiment, the first air outlet channel 411 is closed when air is introduced into the first air intake channel 113 via a one-way air intake valve, and the first air outlet channel 411 is closed when air is discharged from the first air outlet channel 411.

[0084] Of course, when air is intake through the second intake channel 114, the second exhaust channel 421 is closed, and when air is exhaust through the second exhaust channel 421, the second intake channel 114 is closed.

[0085] Of course, when the hydraulic lifting plate 12 is lifted, the first air blowing part 41 is compressed, and the airflow in the first air outlet channel 411 is directed from the first air outlet hole 111 and blown toward the forging table 13.

[0086] When the hydraulic lifting plate 12 descends, the air inside the second blowing section 42 is compressed, and the airflow from the second air outlet channel 421 is directed out through the second air outlet 112 and blown towards the guide sleeve 34, creating an air shield wall at the movable through slot 20.

[0087] A method of using a bar forging device with air-blowing assisted demolding includes the following steps:

[0088] S10: Place the bar to be forged on the forging table 13, start the hydraulic forging device body 10, and make the hydraulic lifting plate 12 move downward in the vertical direction to forge the bar on the forging table 13.

[0089] S20: During the downward movement of the hydraulic lifting plate 12, the guide sleeve 34 is driven by the fixed plate 31 to slide down synchronously along the guide rod 32. The guide sleeve 34 drives the moving rods 33 set at both ends to slide down synchronously in the moving through groove 21. The moving rods 33 drive the connecting rubber block 36 located in the second air blowing part 42 to slide down along the inner wall of the second air blowing part 42 and compress the gas in the second air blowing part 42. The compressed gas enters the second air outlet extension pipe 116 through the one-way air inlet valve in the second air outlet channel 421, and is finally sprayed out synchronously by multiple sets of second air outlet holes 112, forming an air shield wall at the moving through groove 20 to prevent impurities generated during the forging process from entering the interior of the moving through groove 20.

[0090] S30: During the downward movement of the hydraulic lifting plate 12, the connecting rubber block 36 located in the first air blowing section 41 slides down synchronously, so that a negative pressure is formed in the first air blowing section 41. Outside air is drawn into the first air blowing section 41 through the one-way air intake valve in the first air intake channel 113, thus completing the air intake and energy storage.

[0091] S40: After the forging loading is completed, the hydraulic lifting plate 12 moves upward in the vertical direction to unload the forging.

[0092] S50: During the upward movement of the hydraulic lifting plate 12, the guide sleeve 34 is driven to slide upward synchronously along the guide rod 32 by the fixed plate 31. The guide sleeve 34 drives the moving rod 33 and the connecting rod 35 to move upward synchronously. The connecting rod 35 drives the connecting rubber block 36 located in the first air blowing part 41 to slide upward along the inner wall of the first air blowing part 41 and compress the gas in the first air blowing part 41. The compressed gas enters the first air outlet extension pipe 115 through the one-way air inlet valve in the first air outlet channel 411. Finally, it is sprayed synchronously towards the forging table 13 by multiple sets of first air outlet holes 111 to blow and clean the surface of the forging table 13 and the bar, remove oxide scale and impurities between the interfaces, and reduce the initial demolding resistance between the bar and the forging table 13.

[0093] S60: During the upward movement of the hydraulic lifting plate 12, the connecting rubber block 36 located in the second air blowing section 42 moves upward synchronously, so that a negative pressure is formed in the second air blowing section 42. Outside air is drawn into the second air blowing section 42 through the one-way air intake valve in the second air intake channel 114, completing the air intake and energy storage, and preparing for the air curtain shielding in the next forging loading stroke.

[0094] S70: Repeat steps one through six above until all forging processes are completed.

[0095] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bar forging device with air-blowing assisted demolding, characterized in that: The device includes a hydraulic forging device body (10), which is provided with two sets of side plates (11) and a hydraulic lifting plate (12) is provided between the two sets of side plates (11). The hydraulic forging device body (10) is also provided with a forging table (13), which is located directly below the hydraulic lifting plate (12). Two sets of air blowing chambers (40) are provided in the side plate (11). A movable through groove (20) is also provided on the side plate (11). An air blowing assembly (30) is provided in the movable through groove (20). The air blowing assembly (30) is provided in the two sets of air blowing chambers (40). The air blowing assembly (30) is also connected to the hydraulic lifting plate (12), so that the air blowing assembly (30) moves up and down in the air blowing chamber (40) to generate flowing gas and blow it toward the forging table (13).

2. The bar forging device with air-blowing assisted demolding according to claim 1, characterized in that: The air blowing assembly (30) includes a guide rod (32), which is vertically disposed in the movable through groove (20); The outer wall of the guide rod (32) is slidably fitted with a guide sleeve (34), and the two ends of the guide sleeve (34) are respectively provided with moving rods (33). The guide sleeve (34) is also provided with a fixing plate (31), which is connected to the side wall of the hydraulic lifting plate (12).

3. The bar forging device with air-blowing assisted demolding according to claim 2, characterized in that: The movable channel (20) is symmetrically provided with two sets of movable sidewalls (22), and the movable sidewalls (22) are provided with movable channels (21). The movable channels (21) are matched with the blowing chamber (40) and are connected to the blowing chamber (40).

4. A bar forging device with air-blowing assisted demolding according to claim 3, characterized in that: The movable rod (33) is slidably disposed in the movable through groove (21), and a connecting rod (35) is provided on the movable rod (33), and connecting rubber blocks (36) are provided at both ends of the connecting rod (35). The air blowing chamber (40) is provided with a first air blowing part (41) and a second air blowing part (42). The first air blowing part (41) and the second air blowing part (42) are respectively disposed on both sides of the movable through groove (21). Two sets of connecting rubber blocks (36) are respectively slidably disposed in the first air blowing part (41) and the second air blowing part (42). The two sets of connecting rubber blocks (36) are respectively in close contact with the interior of the first air blowing part (41) and the second air blowing part (42).

5. A bar forging device with air-blowing assisted demolding according to claim 4, characterized in that: The first air blowing part (41) is provided with a first air inlet channel (113) and a first air outlet channel (411). The first air inlet channel (113) and the first air outlet channel (411) are symmetrically arranged, and the first air outlet channel (411) is arranged in the direction of the hydraulic lifting plate (12). The first air intake channel (113) is disposed through the side plate (11), while the first air outlet channel (411) is disposed without penetrating the side plate (11).

6. A bar forging device with air-blowing assisted demolding according to claim 5, characterized in that: The side plate (11) is provided with two sets of first air outlet extension pipes (115), and the two sets of first air outlet extension pipes (115) are respectively matched with the positions of two sets of first air outlet channels (411). The first air outlet channels (411) are connected to the first air outlet extension pipes (115). The side plate (11) has multiple sets of first air outlets (111), which are connected to two sets of first air outlet extension pipes (115). The first air outlets (111) are arranged in the direction of the forging table (13).

7. A bar forging device with air-blowing assisted demolding according to claim 6, characterized in that: The second air blowing part (42) is provided with a second air inlet channel (114) and a second air outlet channel (421). The second air inlet channel (114) and the second air outlet channel (421) are symmetrically arranged, and the second air outlet channel (421) is arranged in the direction of the hydraulic lifting plate (12). The second air intake channel (114) is disposed through the side plate (11), and the second air outlet channel (421) is disposed without penetrating the side plate (11).

8. A bar forging device with air-blowing assisted demolding according to claim 7, characterized in that: The side plate (11) is provided with two sets of second air outlet extension pipes (116), and the two sets of second air outlet extension pipes (116) are respectively matched with the positions of two sets of second air outlet channels (421). The second air outlet channels (421) are connected to the second air outlet extension pipes (116). The side plate (11) has multiple sets of second air outlets (112), which are connected to two sets of second air outlet extension pipes (116). The second air outlets (112) are arranged in the direction of the guide sleeve (34).

9. A bar forging device with air-blowing assisted demolding according to claim 8, characterized in that: One-way air intake valves are provided in the first air intake channel (113), the first air outlet channel (411), the second air intake channel (114), and the second air outlet channel (421).

10. A method of using a bar forging device with air-blowing assisted demolding as described in any one of claims 1-9, characterized in that: Includes the following steps: S10: Place the bar to be forged on the forging table (13), start the hydraulic forging device body (10), and make the hydraulic lifting plate (12) move downward in the vertical direction to forge the bar on the forging table (13); S20: During the downward movement of the hydraulic lifting plate (12), the guide sleeve (34) is driven by the fixed plate (31) to slide down synchronously along the guide rod (32). The guide sleeve (34) drives the moving rods (33) set at both ends to move down synchronously in the moving through groove (21). The moving rod (33) drives the connecting rubber block (36) located in the second blowing part (42) to slide down along the inner wall of the second blowing part (42) and compress the gas in the second blowing part (42). The compressed gas enters the second air extension pipe (116) through the one-way air inlet valve in the second air outlet channel (421) and is finally sprayed out synchronously by multiple sets of second air outlet holes (112), forming an air shield wall at the moving through groove (20) to prevent impurities generated during the forging process from entering the interior of the moving through groove (20). S30: During the downward movement of the hydraulic lifting plate (12), the connecting rubber block (36) located in the first air blowing section (41) slides down synchronously, so that a negative pressure is formed in the first air blowing section (41), and the outside air is drawn into the first air blowing section (41) through the one-way air intake valve in the first air intake channel (113) to complete the air intake and energy storage. S40: After the forging loading is completed, the hydraulic lifting plate (12) moves upward in the vertical direction to unload the forging. S50: During the upward movement of the hydraulic lifting plate (12), the guide sleeve (34) is driven to slide upward synchronously along the guide rod (32) by the fixed plate (31). The guide sleeve (34) drives the moving rod (33) and the connecting rod (35) to move upward synchronously. The connecting rod (35) drives the connecting rubber block (36) located in the first blowing part (41) to slide upward along the inner wall of the first blowing part (41) and compress the gas in the first blowing part (41). The compressed gas enters the first air extension pipe (115) through the one-way air inlet valve in the first air outlet channel (411). Finally, it is sprayed synchronously towards the forging table (13) by multiple sets of first air outlet holes (111) to blow clean the surface of the forging table (13) and the bar, remove oxide scale and impurities between the interfaces, and reduce the initial demolding resistance between the bar and the forging table (13). S60: During the upward movement of the hydraulic lifting plate (12), the connecting rubber block (36) located in the second air blowing section (42) moves upward synchronously, so that a negative pressure is formed in the second air blowing section (42). Outside air is drawn into the second air blowing section (42) through the one-way air intake valve in the second air intake channel (114), completing the intake and energy storage, and preparing for the air curtain shielding in the next forging loading stroke; S70: Repeat steps one through six above until all forging processes are completed.

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