Auxiliary feeding device for intermediate-frequency heating production of die steel

Abstract

The invention belongs to the technical field of auxiliary feeding equipment, and particularly relates to an auxiliary feeding device for die steel medium-frequency heating production, which comprises a feeding table, the feeding table is connected with a medium-frequency heating furnace, the feeding table is provided with a feeding groove, a feeding groove and a pushing mechanism, the pushing mechanism is mounted on the feeding table, and the feeding groove is communicated with the feeding groove. The pushing mechanism is used for pushing blanks to move into the medium-frequency heating furnace, the idling buffering assembly is installed on the feeding table, and the idling buffering assembly is used for reducing the movement speed of the blanks and relieving the impact force of the blanks; by arranging the intercepting plate, the circulating belt, the friction belt, the friction strip and other structures, in the process that a blank moves downwards along the inclined groove, friction force acts through movement of all parts, then impact force generated when the blank moves is continuously weakened, the movement speed of the blank is controlled, finally, impact between the blank and the buffer plate is reduced, noise pollution is reduced, and the service life of the blank is prolonged. The service life of the buffer plate is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of auxiliary feeding equipment, in particular to an auxiliary feeding device for medium frequency heating production of die steel. Background Art

[0002] The forming and rolling forging process of automobile front axle is becoming more and more mature, especially in recent years. The production of front axles has gradually adopted the integral rolling and die forging composite process, which draws on the advantages of each in principle and optimizes the manufacturing process of automobile front axles. In the integral rolling and die forging process of automobile front axle forming, it is necessary to heat the cut blank to improve the plasticity of the metal, reduce the deformation resistance, make it easy to flow and form, and obtain good forging structure.

[0003] In the heating process of the billet, electric heating is mostly used for heating the billet. Among them, induction heating is widely used because of its accurate temperature control and less metal burning. During medium-frequency induction heating, the billet cut by the sawing machine is guided and pushed by the auxiliary feeding equipment and transported to the heating furnace through the heating furnace mouth. When the billet is transported, in order to reduce the manufacturing cost of the feeding device and enhance the convenience of billet transportation, a slope is usually used to guide the round steel-shaped automobile front axle billet. Under the action of gravity, the cut billet rolls and arranges itself, and finally is flush with the heating furnace mouth. Subsequently, the blank is automatically loaded under the transportation of the conveying wheel or the hydraulic push rod. Therefore, in implementation, the loading of the blank is achieved through simple guidance, which not only simplifies the structure of the loading device and reduces the production cost of the loading device, but also has a high degree of semi-automation in the loading process. However, in actual application, due to the rolling loading of round steel, it will collide with the limiting component. During long-term operation, it will not only generate greater noise pollution, but also cause the limiting components and equipment to vibrate during the continuous collision, resulting in an increase in failure rate and a decrease in service life.

[0004] In order to reduce the defects during the rolling feeding of the billet in the related art, a buffer mechanism is usually used to offset the impact of the billet during rolling feeding, such as a noise reduction device for the feeding section of the front axle forging of a medium frequency heating furnace published in Chinese Patent Application No. 2019108789259, and an auxiliary feeding device for medium frequency heating production of mold steel published in Chinese Patent Application No. 2019107437591. Both of them buffer and offset the impact of the billet during rolling, thereby reducing equipment failures, noise pollution and other problems caused by vibration and impact. However, in actual application, it is found that only the impact generated at the tail end of the billet movement is offset, and the rolling feeding rate of the billet is not limited. When a heavy round steel billet is fed, the buffer mechanism is subjected to a larger impact and a higher load. Therefore, in the long-term working process, its fatigue resistance is required to be higher. In view of this, the present invention proposes an auxiliary feeding device for medium frequency heating production of mold steel to solve the above technical problems.

[0005] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art known to those skilled in the art. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the present invention proposes an auxiliary feeding device for medium-frequency heating production of mold steel.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the present invention arranges an idle buffer assembly and friction belts, friction strips and other equipment. In the process of the blank moving downward along the inclined groove, the friction force is caused to do work through the movement of each component, thereby continuously weakening the impact force of the blank during movement, controlling the movement speed of the blank, effectively reducing the impact force and noise intensity between the blank and the feeding device, and at the same time utilizing the impact force of the blank during movement to convert into friction force, grinding the end of the blank, removing burrs on the end of the blank, etc., thereby increasing the probability of adverse phenomena occurring during medium frequency induction heating of the blank, thereby enhancing the heating effect of the blank.

[0008] The auxiliary feeding device for medium frequency heating production of mold steel described in the present invention comprises a feeding platform, the feeding platform is connected to the medium frequency heating furnace, a feeding trough and a feeding trough are provided on the feeding platform, the feeding trough is used to receive the blank, the feeding trough is aligned with the furnace mouth of the medium frequency heating furnace, an inclined slot is provided between the feeding trough and the feeding trough, and the inclined slot is used to guide the blank to move from the feeding trough to the feeding trough;

[0009] A pushing mechanism, which is installed on the loading platform and is used to push the blank into the medium frequency heating furnace;

[0010] It also includes an idle buffer assembly, which is installed on the loading platform and is used to slow down the movement speed of the blank and alleviate the impact force of the blank;

[0011] The idle buffer assembly includes a circulating belt, the inclined groove is provided with a circulating groove, the circulating groove is annular in design, and a circulating belt is rotatably installed in the circulating groove;

[0012] Interceptor plates, evenly distributed interceptor plates are fixedly mounted on the circulating belt, and the interceptor plates are located on the moving path of the blank;

[0013] A buffer plate is installed at one end of the feeding trough away from the feeding trough, and the surface of the buffer plate is made of elastic material.

[0014] Specifically, the intercepting plate is designed to be arc-shaped, and the direction of the arc opening is opposite to the rotation direction of the circulating belt.

[0015] Specifically, the idle buffer assembly further includes a limit plate, which is installed on both sides of the inclined slot and is used to limit the movement path of the blank;

[0016] Friction belt: the limit plate is provided with a friction belt, and the friction belt is in frictional contact with both ends of the blank.

[0017] Specifically, the limiting plate is provided with an installation groove, in which a symmetrically designed transmission shaft is rotatably installed, the friction belt is annular in design, and the friction belt is sleeved on the transmission shaft through a pulley.

[0018] Specifically, a symmetrically designed connecting shaft is rotatably installed in the circulation groove, the circulating belt extends to the connecting shaft and is connected to the connecting shaft through a pulley, a transmission cavity is opened on the loading platform, the connecting shaft and the transmission shaft both extend into the transmission cavity, the connecting shaft is located in the transmission cavity and is designed in the shape of a worm, a turbine is fixedly installed at one end of the transmission shaft located in the transmission cavity, and the turbine is meshingly connected with the worm.

[0019] Specifically, the friction belt and the blank move in opposite directions.

[0020] Specifically, a sliding groove is provided in the inclined groove, the sliding groove is conductively connected to the transmission cavity, an adjustable telescopic rod is fixedly installed on the loading platform, and the limit plate is fixedly connected to the adjustable telescopic rod.

[0021] Specifically, a friction strip is fixedly mounted on the bottom surface of the inclined groove, and the length direction of the friction strip is the same as the moving direction of the blank.

[0022] Specifically, rollers evenly distributed are rotatably mounted on the intercepting plate, and the intercepting plate contacts the blank through the rollers.

[0023] Specifically, a slot is provided on the feeding trough, a scraper is slidably installed in the slot, the scraper is a plate-like structure with a hole in the middle, and the middle part of the scraper is made of elastic rubber material.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. The auxiliary feeding device for medium-frequency heating production of mold steel described in the present invention, by setting structures such as intercepting plates, circulating belts, friction belts and friction strips, when the billet moves downward along the inclined groove, the movement of each component causes the friction force to do work, thereby continuously weakening the impact force of the billet during movement, controlling the movement speed of the billet, and ultimately reducing the impact between the billet and the buffer plate, reducing noise pollution, and extending the service life of the buffer plate.

[0026] 2. The auxiliary feeding device for medium frequency heating production of mold steel described in the present invention converts the gravitational potential energy of the blank during movement into friction force, and then grinds the two ends of the blank to remove burrs, burrs, etc. remaining in the blank cutting process, thereby reducing the probability of adverse phenomena occurring in the blank during induction heating and enhancing the stability of the induction heating of the blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1 is a stereogram of the present invention;

[0029] Figure 2 It is a three-dimensional diagram of the circulation tank after being cut open in the present invention;

[0030] Figure 3 It is a schematic diagram of the connection between the circulating belt and the connecting shaft;

[0031] Figure 4 It is the assembly drawing of the limit plate and the adjustable telescopic rod;

[0032] Figure 5 It is a schematic diagram of the connection between the transmission shaft and the connecting shaft of the present invention;

[0033] Figure 6 is a cross-sectional view of the limit plate;

[0034] Figure 7 yes Figure 2 A partial enlarged view of the middle A;

[0035] Figure 8 It is a three-dimensional picture of the scraper;

[0036] In the figure: 1. loading platform; 11. feeding trough; 12. feeding trough; 13. inclined trough; 14. pushing mechanism; 2. circulating belt; 21. circulating trough; 22. intercepting plate; 23. buffer plate; 24. limiting plate; 25. friction belt; 26. mounting groove; 27. transmission shaft; 3. connecting shaft; 31. transmission cavity; 32. turbine; 33. sliding groove; 34. adjustable telescopic rod; 4. friction strip; 41. roller; 5. slot; 51. scraper. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] like Figures 1 to 8As shown, the auxiliary feeding device for medium frequency heating production of mold steel described in the present invention comprises a feeding platform 1, the feeding platform 1 is connected to the medium frequency heating furnace, a feeding trough 11 and a feeding trough 12 are provided on the feeding platform 1, the feeding trough 11 is used to receive the blank, the feeding trough 12 is aligned with the furnace mouth of the medium frequency heating furnace, an inclined slot 13 is provided between the feeding trough 11 and the feeding trough 12, and the inclined slot 13 is used to guide the blank to move from the feeding trough 11 to the feeding trough 12;

[0039] A pushing mechanism 14, which is installed on the loading platform 1 and is used to push the blank into the medium frequency heating furnace;

[0040] It also includes an idle buffer assembly, which is installed on the loading platform 1 and is used to slow down the movement speed of the blank and alleviate the impact force of the blank;

[0041] The idle buffer assembly includes a circulating belt 2. A circulating groove 21 is provided on the inclined groove 13. The circulating groove 21 is annular in design. The circulating belt 2 is rotatably installed in the circulating groove 21.

[0042] Interceptor plates 22, evenly distributed interceptor plates 22 are fixedly mounted on the circulating belt 2, and the interceptor plates 22 are located on the movement path of the blank;

[0043] A buffer plate 23 is installed at one end of the feeding trough 12 away from the feeding trough 11, and the surface of the buffer plate 23 is made of elastic material;

[0044] The interception plate 22 is designed in an arc shape, and the direction of the arc opening is opposite to the rotation direction of the circulating belt 2;

[0045] During the processing of the automobile front axle, the round steel is fed into the sawing machine and cut into billets of equal length according to the length of the automobile front axle. Under the action of gravity, the billet falls from the feed chute 11 opened on the loading platform 1 and rolls along the inclined chute 13 toward the feeding chute 12. In order to reduce the speed and impact force of the billet on the feeding chute 12, an idle buffer component is provided to reduce the speed of the round steel in the inclined chute 13, thereby reducing the impact of the billet on the feeding chute 12. Specifically, under the guidance of the inclined chute 13, the cylindrical billet rolls along the inclined chute 13 toward the feeding chute 12. During the rolling process of the billet, the billet is blocked by the interception plate 22, causing the billet to fall on the interception plate 22 and push the interception plate 22 to move. Since the interception plate 22 is fixedly installed on the circulating belt 2, the interception plate 22 is pushed to move under the action of the gravity of the billet. 2 and the circulating belt 2 circulate and rotate in the circulating groove 21. When the circulating belt 2 rotates in the circulating groove 21, the work done by the gravitational potential energy of the billet is converted into the work done by the friction force between the circulating belt 2 and the circulating groove 21, thereby reducing the impact force when the billet moves to the bottom of the inclined groove 13. Subsequently, as the billet moves to the bottom of the inclined groove 13 under the support of the intercepting plate 22, the intercepting plate 22 is driven by the circulating belt 2 to rotate and flip, and then separate from the billet. The billet enters the feeding trough 12 and is stopped by the buffer plate 23. Subsequently, the pushing mechanism 14 installed on the loading platform 1 is started. The pushing mechanism 14 adopted in this embodiment is a hydraulic pushing device. In other embodiments of the present application, conveyor belt equipment, roller pushing mechanism and other equipment can also be selected to push the billet to move toward the furnace mouth of the medium frequency heating furnace along the axial direction of the billet.

[0046] The present invention provides a circulating belt 2 and an intercepting plate 22. When the blank moves along the chute 13, the work done by the gravitational potential energy of the blank during movement and the work done by the friction force of the circulating belt 2 during movement are offset, thereby reducing the speed of the blank movement and reducing the impact of the blank on the buffer plate 23 in the feed chute 12. At the same time, since the intercepting plates 22 are evenly distributed on the circulating belt 2, the blanks are repeatedly intercepted during the circulating rotation of the circulating belt 2, and multiple intercepting plates 22 are used to separate the blanks during the rolling of the blanks in sequence, which can enhance the uniformity of the distribution of the blanks in the chute 13.

[0047] As a preferred embodiment of the present invention, the idle buffer assembly further includes a limit plate 24, which is installed on both sides of the inclined slot 13, and the limit plate 24 is used to limit the movement path of the blank;

[0048] Friction belt 25: The limit plate 24 is provided with a friction belt 25, and the friction belt 25 is in friction contact with both ends of the blank.

[0049] The limit plate 24 is provided with a mounting groove 26, in which a symmetrically designed transmission shaft 27 is rotatably mounted, and the friction belt 25 is annularly designed, and the friction belt 25 is sleeved on the transmission shaft 27 through a pulley;

[0050] On the basis of the previous embodiment, the present embodiment optimizes the equipment. When the blank rolls into the chute 13, the intercepting plate 22 and the circulating belt 2 are driven to move under the action of impact force and gravity. In this process, the movement path of the blank is limited by setting the limit plate 24, so that the movement of multiple blanks is more orderly. The friction belt 25 is set, and the friction belt 25 is used to rub the two end faces of the blank during the rolling of the blank downward. On the one hand, the friction belt 25 is in friction contact with the end face of the blank, which can effectively consume the gravitational potential energy of the blank to do work and slow down the speed of the blank moving in the chute 13, thereby reducing the impact force of the blank when entering the feed trough 12. On the other hand, when the sawing machine does not have an ideal cutting effect on the blank, it is easy to cause burrs, burrs and other defects on the two end faces of the cut blank. When the blank moves to the inside of the medium frequency heating furnace for induction heating, the blank is in the process of heating up. The burrs and rough edges on the end face can easily generate arcs with the sensor, which not only easily generate arc light and damage the eyesight of the staff, but also easily cause local overheating of the blank. Therefore, the friction belt 25 is rubbed against the end face of the blank. Under the action of friction, the end face of the blank is polished, thereby effectively removing burrs and rough edges and reducing the probability of adverse phenomena when the blank is heated. The installation groove 26 and the transmission shaft 27 are set to annularly sleeve the friction belt 25 on the transmission shaft 27, so that the friction belt 25 has the ability to circulate and rotate. During long-term use, the transmission shaft 27 can be driven to rotate the friction belt 25, thereby changing the position of the friction belt 25 in contact with the end face of the blank, thereby extending the service life of the friction belt 25. When replacing the friction belt 25, it is only necessary to re-sleeve the friction belt 25 on two symmetrical transmission shafts 27.

[0051] As a preferred embodiment of the present invention, a symmetrically designed connecting shaft 3 is rotatably installed in the circulation groove 21, the circulating belt 2 extends to the connecting shaft 3 and is connected to the connecting shaft 3 through a pulley, a transmission cavity 31 is opened on the loading platform 1, the connecting shaft 3 and the transmission shaft 27 both extend into the transmission cavity 31, the connecting shaft 3 is located in the transmission cavity 31 and is designed in a worm shape, the transmission shaft 27 is located in the transmission cavity 31 and one end thereof is fixedly installed with a turbine 32, and the turbine 32 is meshed and connected with the connecting shaft 3;

[0052] The friction belt 25 moves in the opposite direction to the blank;

[0053] On the basis of the previous embodiment, in order to further enhance the effect of the friction belt 25 on grinding the end face of the blank, the present embodiment further optimizes the equipment structure. By setting a connecting shaft 3 and a turbine 32, when the equipment is installed, the circulating belt 2 is sleeved on the connecting shaft 3, and the connection effect is enhanced by a pulley. When the intercepting plate 22 and the circulating belt 2 rotate, the connecting shaft 3 is synchronously driven to rotate. The connecting shaft 3 extends into the transmission cavity 31 and is in the shape of a worm and meshes with the turbine 32. Therefore, when the connecting shaft 3 rotates, the turbine 32 and the transmission shaft 27 are driven to rotate, thereby causing the friction belt 25 to rotate. By adjusting the meshing of the connecting shaft 3 and the turbine 32 and the rotation direction of the transmission shaft 27, the movement direction of the side of the friction belt 25 in contact with the end face of the blank is opposite to the movement direction of the blank, thereby enhancing the friction effect on the end face of the blank.

[0054] As a preferred embodiment of the present invention, a sliding groove 33 is provided in the inclined groove 13, and the sliding groove 33 is conductively connected to the transmission cavity 31. An adjustable telescopic rod 34 is fixedly installed on the loading platform 1, and the limit plate 24 is fixedly connected to the adjustable telescopic rod 34.

[0055] In the present invention, when the blank moves downward, the work done by the gravitational potential energy is consumed by the work done by the friction force. In actual application, the friction belt 25 itself has a certain elasticity. Therefore, the pressure between the friction belt 25 and the end face of the blank has a great influence on the friction between the friction belt 25 and the blank. By setting the sliding groove 33 and the adjustable telescopic rod 34, before the blanks are transported in batches, the length of the adjustable telescopic rod 34 is manually adjusted according to the length of the blanks. The adjustable telescopic rod 34 of the present invention is a telescopic rod with adjustment and locking functions. By adjusting the length of the adjustable telescopic rod 34, the distance between the two limit plates 24 can be adjusted. The distance between the two limit plates 24 changes, and is manually adjusted to make the distance between the two limit plates 24 close to the length of the blank. At this time, one side of the friction belt 25 is located between the surfaces of the limit plates 24 on the end face of the blank. When the blank moves downward under the action of gravity, the friction belt 25 is partially deformed under the action of pressure, and then the surface of the friction belt 25 is polished. Before batch operation, the position of the limit plates 24 is adjusted, and the blank is tested for loading. According to the polishing effect when the blank moves to the bottom of the chute 13, feedback is formed, and then the gap between the limit plates 24 and the blank is optimized. Finally, a suitable gap is selected to enhance the polishing effect on the blank.

[0056] As a preferred embodiment of the present invention, a friction strip 4 is fixedly installed on the bottom surface of the inclined groove 13, and the length direction of the friction strip 4 is the same as the moving direction of the blank;

[0057] The intercepting plate 22 is rotatably mounted with rollers 41 evenly distributed thereon, and the intercepting plate 22 is in contact with the blank through the rollers 41;

[0058] In actual application, in order to further enhance the grinding effect on the end face of the blank, the friction strip 4 and the roller 41 are set to increase the friction between the blank and the inclined groove 13 when it moves downward, and reduce the friction between the blank and the intercepting plate 22 when it rotates, so that the blank has a stronger tendency to rotate in a circular motion during the downward movement, so that the blank is in uniform contact with the friction belt 25 during the circular rotation, thereby enhancing the grinding effect on the end face of the blank.

[0059] As a preferred embodiment of the present invention, a slot 5 is provided on the feed trough 12, a scraper 51 is slidably installed in the slot 5, the scraper 51 is a plate-like structure with a hole in the middle, and the middle part of the scraper 51 is made of elastic rubber material;

[0060] By setting the slot 5 and the scraper 51, under the action of the pushing mechanism 14, the blank moves toward the heating furnace along the axial direction, passes through the middle part of the scraper 51, and passes through the middle hole of the scraper 51. During the movement of the blank, the middle part of the scraper 51 scrapes the surface of the blank, thereby scraping off iron filings, impurities, etc. that may be adhered to the surface of the blank, thereby reducing the influence of iron filings, impurities, etc. on the induction heating of the blank.

[0061] The specific implementation is as follows:

[0062] Before the batch delivery of the blanks, the length of the adjustable telescopic rod 34 is manually adjusted according to the length of the blanks, so that the spacing between the two limit plates 24 is close to the length of the blanks. At this time, one side of the friction belt 25 is located between the surfaces of the limit plates 24 on the end faces of the blanks. When the blanks move downward under the action of gravity, the friction belt 25 is partially deformed under the action of pressure. After the round steel is cut into blanks, the blanks fall from the feed trough 11 opened on the loading platform 1, and roll along the inclined trough 13 toward the feeding trough 12. The blanks fall on the intercepting plate 22, and push the intercepting plate 22 and the circulating belt 2 to circulate in the circulating trough 21, thereby synchronously driving the connecting shaft 3 to rotate. The connecting shaft 3 extends into the transmission cavity 31 and is in the shape of a worm, and is connected to the turbine 3. 2 meshes, so when the connecting shaft 3 rotates, the turbine 32 and the transmission shaft 27 are driven to rotate, and then the friction belt 25 is rotated, so that the friction belt 25 grinds the end surface of the blank. At the same time, as the blank continues to move, under the action of the friction strip 4 and the roller 41, the blank performs a directional rotation during the downward movement, thereby enhancing the friction between the blank and the friction belt. As the blank moves, the friction force continues to do work, thereby reducing the movement speed of the blank. Finally, the blank enters the feeding trough 12, and under the action of the buffer plate 23, the blank is made to stop. Then the pushing mechanism 14 installed on the loading platform 1 is started, and the blank is pushed along the axial direction of the blank to move toward the furnace mouth of the medium frequency heating furnace, thereby completing the loading process.

[0063] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An auxiliary feeding device for medium frequency heating production of mold steel, comprising a feeding platform (1), the feeding platform (1) is connected to a medium frequency heating furnace, a feeding trough (11) and a feeding trough (12) are provided on the feeding platform (1), the feeding trough (11) is used to receive blanks, the feeding trough (12) is aligned with the furnace opening of the medium frequency heating furnace, an inclined slot (13) is provided between the feeding trough (11) and the feeding trough (12), and the inclined slot (13) is used to guide the blanks to move from the feeding trough (11) to the feeding trough (12); A pushing mechanism (14), the pushing mechanism (14) being installed on the loading platform (1), and the pushing mechanism (14) being used to push the blank into the medium frequency heating furnace; Features: It also includes an idle buffer component, which is installed on the loading platform (1) and is used to slow down the movement speed of the blank and alleviate the impact force of the blank; The idle buffer assembly comprises a circulating belt (2), a circulating groove (21) is provided on the inclined groove (13), the circulating groove (21) is annular in design, and the circulating belt (2) is rotatably installed in the circulating groove (21); Interceptor plates (22), the circulating belt (2) is fixedly mounted with evenly distributed interceptor plates (22), and the interceptor plates (22) are located on the movement path of the blank; A buffer plate (23) is installed at one end of the feeding trough (12) away from the feeding trough (11), and the surface of the buffer plate (23) is made of elastic material.

2. The auxiliary feeding device for medium frequency heating production of mold steel according to claim 1, characterized in that: The intercepting plate (22) is designed to be arc-shaped, and the direction of the arc opening is opposite to the rotation direction of the circulating belt (2).

3. The auxiliary feeding device for medium frequency heating production of mold steel according to claim 1, characterized in that: The idle buffer assembly further comprises a limit plate (24), wherein the limit plate (24) is installed on both sides of the inclined slot (13), and the limit plate (24) is used to limit the movement path of the blank; A friction belt (25), wherein the limit plate (24) is provided with a friction belt (25), and the friction belt (25) is in frictional contact with both ends of the blank.

4. The auxiliary feeding device for medium frequency heating production of mold steel according to claim 3 is characterized by: The limiting plate (24) is provided with a mounting groove (26), a symmetrically designed transmission shaft (27) is rotatably mounted in the mounting groove (26), the friction belt (25) is annularly designed, and the friction belt (25) is sleeved on the transmission shaft (27) via a pulley.

5. The auxiliary feeding device for medium frequency heating production of mold steel according to claim 4, characterized in that: A symmetrically designed connecting shaft (3) is rotatably mounted in the circulation groove (21); the circulating belt (2) extends to the connecting shaft (3) and is connected to the connecting shaft (3) via a pulley; a transmission cavity (31) is provided on the loading platform (1); the connecting shaft (3) and the transmission shaft (27) both extend into the transmission cavity (31); the connecting shaft (3) is located in the transmission cavity (31) and is designed in the shape of a worm; a turbine (32) is fixedly mounted at one end of the transmission shaft (27) located in the transmission cavity (31); the turbine (32) is meshingly connected to the worm.

6. The auxiliary feeding device for medium frequency heating production of mold steel according to claim 5, characterized in that: The friction belt (25) moves in the opposite direction to the blank.

7. The auxiliary feeding device for medium frequency heating production of mold steel according to claim 6, characterized in that: A sliding groove (33) is provided in the inclined groove (13), and the sliding groove (33) is conductively connected to the transmission chamber (31). An adjustable telescopic rod (34) is fixedly installed on the loading platform (1), and the limiting plate (24) is fixedly connected to the adjustable telescopic rod (34).

8. The auxiliary feeding device for medium frequency heating production of mold steel according to claim 7, characterized in that: A friction strip (4) is fixedly mounted on the bottom surface of the inclined groove (13), and the length direction of the friction strip (4) is the same as the moving direction of the blank.

9. The auxiliary feeding device for medium frequency heating production of mold steel according to claim 8, characterized in that: The intercepting plate (22) is rotatably mounted with rollers (41) that are evenly distributed, and the intercepting plate (22) is in contact with the blank via the rollers (41).

10. The auxiliary feeding device for medium frequency heating production of mold steel according to claim 9, characterized in that: The feeding trough (12) is provided with a slot (5), a scraper (51) is slidably mounted in the slot (5), the scraper (51) is a plate-shaped structure with a hole in the middle, and the middle part of the scraper (51) is made of elastic rubber material.

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