Automatic feeding device for cold cutting machine

Abstract

The utility model relates to an automatic feeding equipment for cold cutting machine, including installation frame, the installation frame is along width direction respectively installed with carrying module and transfer module, the carrying module includes several carrying mechanism interval arrangement along installation frame length direction, the carrying mechanism under the drive of first drive assembly moves simultaneously to convey the bar material from the feeding end of carrying module to the feeding end of transfer module, and then carries out one by one discharge through transfer module. Through setting up carrying mechanism, transfer rack, limiting mechanism and material handling mechanism, can realize the automatic feeding of bar material, reduces the manual labor intensity, effectively improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of metal processing technology, and in particular to an automatic feeding device for a cold cutting machine. Background Technology

[0002] In the field of mechanical manufacturing, stationary cooling machines are typically used to cut metal bars into short bars of a certain length to meet subsequent production and processing requirements.

[0003] In existing technologies, the processing of metal bars using a fixed cold cutting machine largely relies on manual feeding. Operators must manually move the long bars one by one onto the conveyor belt at the front of the cold cutting machine, where they are then fed. However, manual feeding is inefficient and labor-intensive, and its efficiency, precision, and reliability are no longer sufficient to meet the demands of modern industry. Therefore, there is an urgent need for an automated feeding device for cold cutting machines. Utility Model Content

[0004] Therefore, it is necessary to provide an automatic feeding device for cold cutting machines to address the problems of low work efficiency, high labor intensity, and inability to meet the needs of modern industrial production in the existing manual feeding mode.

[0005] The technical solution adopted in this utility model is as follows:

[0006] An automatic feeding device for a cold cutting machine includes a mounting frame, on which a conveying module and a transfer module are respectively mounted along the width direction;

[0007] The transport module includes several transport mechanisms arranged at intervals along the length of the mounting frame. The transport mechanisms move simultaneously under the drive of the first drive component, thereby transporting the bar stock from the feed end of the transport module to the feed end of the transfer module, and then discharging it one by one through the transfer module.

[0008] As a further improvement to the above technical solution:

[0009] The first drive assembly includes a first motor, the output end of which is connected to a first spindle via a first chain drive assembly. The first spindle is rotatably mounted on a mounting frame, and the first motor drives the first spindle to rotate via the first chain drive assembly.

[0010] The structure of a single handling mechanism is as follows: it includes a rotating shaft rotatably mounted on a mounting frame, the rotating shaft being arranged parallel to a first main shaft at a distance and connected to the first main shaft through a chain drive assembly, a first connecting rod being fixed at the end of the rotating shaft, and the end of the first connecting rod being hinged to one end of a second connecting rod;

[0011] It also includes a fixed plate fixed to the top of the mounting frame, a movable plate arranged on one side of the fixed plate, the two ends of the bottom wall of the movable plate being hinged to the mounting frame respectively, and the middle part of the bottom wall of the movable plate being hinged to the other end of the second connecting rod.

[0012] The rotating first main shaft drives the rotating shaft to rotate through the chain drive assembly. The rotating shaft drives the first connecting rod to swing, which in turn drives the movable plate to undulate relative to the fixed plate through the second connecting rod, thereby pushing the bar on the fixed plate forward.

[0013] In a single handling mechanism, the two ends of the bottom wall of the movable plate are respectively hinged to the mounting frame via a first hinge shaft and a second hinge shaft.

[0014] The transfer module includes several transfer racks arranged at intervals along the length of the installation frame, and the transfer racks are provided with a storage area.

[0015] A limiting mechanism is installed on each individual transfer rack to push the bar stock at the feed end of the transfer module into the storage area.

[0016] A material conveying mechanism is installed on each individual transfer rack. The material conveying mechanism transports the bar stock in the storage area one by one to the discharge end of the transfer module for discharge.

[0017] The structure of a single transfer rack is as follows: it includes two side racks arranged at intervals and opposite each other. The top of a single side rack is provided with a V-shaped groove. The V-shaped grooves of the two side racks are combined to form a V-shaped storage area.

[0018] Material receiving plates are installed on the top of both side frames, and bottom plates are installed on the bottom of both side frames. An inclined discharge guide plate is installed on the top of one side frame. The discharge guide plate and the material receiving plate are respectively arranged on both sides of the V-shaped groove.

[0019] The structure of a single limiting mechanism is as follows: it includes a connecting shaft and a limiting cylinder installed between the two side frames. The output end of the limiting cylinder is hinged to one end of the limiting plate, and the other end of the limiting plate is rotatably engaged with the outer circumferential surface of the connecting shaft.

[0020] The limiting cylinder extends and pushes the limiting plate to rotate relative to the connecting shaft, thereby causing the limiting plate to extend through the clearance groove opened on the end face of the receiving plate.

[0021] The structure of a single material conveying mechanism is as follows: it includes a mounting base that is slidably installed between two side frames, and a transmission rack is fitted on the side wall of the mounting base. The transmission rack meshes with a transmission gear, and the transmission gear rotates under the drive of a second drive assembly.

[0022] The mounting base is fitted with a top block for supporting the bar stock, and a kicking block is also rotatably mounted on the mounting base. A follower bearing is fitted on the kicking block, and the follower bearing engages with a shape guide rail fixed to the side wall of one side frame. The rotating transmission gear drives the mounting base to move linearly through the transmission rack, thereby lifting the bar stock in the storage area to the discharge guide plate through the top block. At the same time, the mounting base drives the follower bearing to roll along the shape guide rail, thereby driving the kicking block to move along the contour curve of the shape guide rail, and then pushing the excess bar stock back into the storage area through the kicking block.

[0023] It also includes a drive cylinder fixed to the side wall of one side of the frame. The output end of the drive cylinder is connected to a support rod. When the drive cylinder extends, it drives the support rod to extend, so that the outer wall surface of the support rod contacts the outer circumferential surface of the corresponding bar, thereby limiting the bar on the discharge guide plate. When the drive cylinder retracts, it drives the support rod to retract, thereby releasing the limitation on the corresponding bar, and thus causing the corresponding bar to roll along the inclined direction of the discharge guide plate.

[0024] The second drive assembly includes a second spindle rotatably mounted on a mounting frame and a second motor, the output end of which is connected to the second spindle via a second chain drive assembly;

[0025] A single transmission gear is fixed on the outer circumferential surface of the second main shaft. The second motor drives the second main shaft to rotate through the second chain transmission assembly, thereby driving the transmission gear to rotate simultaneously.

[0026] In a single material conveying mechanism, the top material block and the mounting base are rotatably engaged via a third hinge shaft. At the same time, a tie rod element is also installed between the top material block and the mounting base.

[0027] The structure of the pull rod element is as follows: it includes a pull rod seat fixed on the mounting base, a top material pull rod is installed in the middle of the pull rod seat, one end of the top material pull rod extends to the outside of the pull rod seat and is hinged to the top material block through the pull rod joint, the other end of the top material pull rod extends to the outside of the pull rod seat and is installed in conjunction with the limiting block, and a spring is sleeved on the outer circumference of the top material pull rod, the spring being installed between the pull rod seat and the pull rod joint.

[0028] The beneficial effects of this utility model are as follows:

[0029] This utility model features a compact and reasonable structure, and is easy to operate. By incorporating a conveying mechanism, a transfer rack, a limiting mechanism, and a material transport mechanism, it achieves automatic feeding of bar stock, reducing manual labor intensity and effectively improving production efficiency. Simultaneously, by setting up kick blocks, follow-up bearings, and shape guides, it ensures that bar stock is discharged one by one in an orderly manner, improving the accuracy and stability of the feeding process. This utility model's automatic feeding equipment has reliable connection performance, good operational stability, low failure rate, and good compatibility, making it suitable for various specifications of bar stock. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model.

[0031] Figure 2 for Figure 1 Top view.

[0032] Figure 3 This is a schematic diagram of the installation structure between a single handling mechanism and the first drive component in this utility model.

[0033] Figure 4 for Figure 3 Side view.

[0034] Figure 5 This is a schematic diagram of the transfer module in this utility model.

[0035] Figure 6 This is a schematic diagram of the installation structure between a single transfer rack, a single limiting mechanism, a single conveying mechanism, and the second drive assembly in this utility model.

[0036] Figure 7 for Figure 6 Exploded view.

[0037] Figure 8 This is a schematic diagram of the installation structure between the top material block and the tie rod element in this utility model.

[0038] The components include: 1. mounting frame; 2. first main shaft; 3. first motor; 4. first chain drive assembly; 5. handling mechanism; 6. transfer rack; 7. storage area; 8. limiting mechanism; 9. conveying mechanism; 10. second motor; 11. second chain drive assembly; 12. second main shaft.

[0039] 501. Fixed plate; 502. Movable plate; 503. Rotating shaft; 504. Chain drive assembly; 505. First connecting rod; 506. Second connecting rod; 507. First hinge shaft; 508. Second hinge shaft;

[0040] 601. Side frame; 602. Base plate; 603. Receiving plate; 604. Slide rail assembly; 605. V-groove; 606. Clearance groove; 607. Discharge guide plate;

[0041] 801. Limit cylinder; 802. Connecting shaft; 803. Limit plate;

[0042] 901. Mounting base; 902. Transmission rack; 903. Ejector block; 904. Spring; 905. Ejector pull rod; 906. Pull rod seat; 907. Limit block; 908. Bearing assembly; 909. Kick block; 910. Follower bearing; 911. Shape guide rail; 912. Drive cylinder; 913. Support rod; 914. Linear bearing seat; 915. Transmission gear. Detailed Implementation

[0043] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0044] The structure and function of this utility model are as follows:

[0045] like Figures 1-8 As shown, an automatic feeding device for a cold cutting machine includes a mounting frame 1. A conveying module and a transfer module are mounted on the mounting frame 1 along its width. The conveying module includes several conveying mechanisms 5 arranged at intervals along the length of the mounting frame 1. The conveying mechanisms 5 move simultaneously under the drive of a first driving component, thereby conveying the bar stock from the inlet end of the conveying module to the inlet end of the transfer module, and then discharging it one by one through the transfer module. By setting up the conveying module and the transfer module, automatic feeding of the bar stock can be achieved, reducing manual labor intensity and effectively improving production efficiency.

[0046] The transport module includes a first drive component and several transport mechanisms 5 driven by the first drive component, such as... Figure 3 As shown, the first drive assembly includes a first motor 3. The output end of the first motor 3 is connected to the first main shaft 2 via a first chain drive assembly 4. The first main shaft 2 is rotatably mounted on the mounting frame 1. The first motor 3 drives the first main shaft 2 to rotate via the first chain drive assembly 4. The first drive assembly is used to drive all the conveying mechanisms 5 to work simultaneously to convey the bar stock forward. The first chain drive assembly 4 includes a first drive sprocket connected to the output end of the first motor 3 and a first driven sprocket fixed to the outer circumference of the first main shaft 2. A first chain is fitted between the first drive sprocket and the first driven sprocket. The first motor 3 drives the first drive sprocket to rotate, which in turn drives the first driven sprocket to rotate via the first chain, thereby driving the first main shaft 2 to rotate.

[0047] like Figures 3-4As shown, the structure of a single conveying mechanism 5 is as follows: it includes a rotating shaft 503 rotatably mounted on the mounting frame 1, the rotating shaft 503 being arranged parallel to the first main shaft 2 at intervals and connected to the first main shaft 2 through a chain drive assembly 504, the end of the rotating shaft 503 being fixed to a first connecting rod 505, and the end of the first connecting rod 505 being hinged to one end of a second connecting rod 506; it also includes a fixed plate 501 fixed to the top of the mounting frame 1, a movable plate 502 arranged on one side of the fixed plate 501, the two ends of the bottom wall of the movable plate 502 being hinged to the mounting frame 1 respectively, and the middle part of the bottom wall of the movable plate 502 being hinged to the other end of the second connecting rod 506; the rotating first main shaft 2 drives the rotating shaft 503 to rotate through the chain drive assembly 504, the rotating shaft 503 drives the first connecting rod 505 to swing, thereby driving the movable plate 502 to undulate relative to the fixed plate 501 through the second connecting rod 506, thereby pushing the bar on the fixed plate 501 forward. During the swinging motion of the movable plate 502 relative to the mounting frame 1, it can apply a pushing force to the bar stock in contact with it, thereby causing the corresponding bar stock to move forward. By setting up the conveying mechanism 5, the conveying distance of the bar stock can be precisely controlled by the swinging motion of the movable plate 502, realizing automated continuous feeding and improving production efficiency.

[0048] In the single handling mechanism 5, both ends of the bottom wall of the movable plate 502 are hinged to the mounting frame 1 via a first hinge pin 507 and a second hinge pin 508, respectively. The hinge between the movable plate 502 and the mounting frame 1 is achieved by setting the first hinge pin 507 and the second hinge pin 508.

[0049] The transfer module is used to temporarily store the bar stock sent by the feeding module and then supply the stored bar stock one by one to the back-end equipment; for example... Figure 5 As shown, the transfer module includes several transfer racks 6 arranged at intervals along the length of the mounting frame 1. Each transfer rack 6 has a storage area 7. A limiting mechanism 8 is installed on each transfer rack 6 to push the bar stock from the feed end of the transfer module into the storage area 7. A conveying mechanism 9 is installed on each transfer rack 6 to transport the bar stock in the storage area 7 one by one to the discharge end of the transfer module for discharge.

[0050] like Figures 6-7As shown, the structure of a single transfer rack 6 includes two side racks 601 arranged at intervals and opposite to each other. A V-shaped groove 605 is provided on the top of each side rack 601, and the V-shaped grooves 605 of the two side racks 601 combine to form a V-shaped storage area 7. A receiving plate 603 is installed on the top of each side rack 601, and a base plate 602 is installed on the bottom of each side rack 601. An inclined discharge guide plate 607 is installed on the top of one side rack 601, and the discharge guide plate 607 and the receiving plate 603 are respectively arranged on both sides of the V-shaped groove 605. The receiving plate 603 is positioned at the same height as the fixed plate 501 in the feeding module, and is used to receive the bar stock from the discharge end of the feeding module. The conveying mechanism 9 can lift the bar stock in the storage area 7 to the inlet end of the rear equipment.

[0051] The structure of a single limiting mechanism 8 includes a connecting shaft 802 and a limiting cylinder 801 installed between the two side frames 601. The output end of the limiting cylinder 801 is hinged to one end of the limiting plate 803, and the other end of the limiting plate 803 is rotatably engaged with the outer circumferential surface of the connecting shaft 802. The limiting cylinder 801 extends and pushes the limiting plate 803 to rotate relative to the connecting shaft 802, thereby causing the limiting plate 803 to extend through the clearance groove 606 opened on the end face of the receiving plate 603. By setting the limiting mechanism 8, the rotating limiting plate 803 prevents the bar stock behind from entering the storage area 7, so that it can be discharged one by one by the conveying mechanism 9.

[0052] In addition, in this utility model, when the bar stock is round, the bar stock rolls down into the storage area 7 by its own gravity, and then the limiting plate 803 extends to block the bar stock behind it from continuing to enter; when the bar stock is square, the limiting plate 803 is always in the retracted state, and the bar stock is transported forward to the storage area 7 by the conveying mechanism 5.

[0053] The structure of a single material conveying mechanism 9 is as follows: it includes a mounting base 901 slidably mounted between two side frames 601. A transmission rack 902 is fitted on the side wall of the mounting base 901, and the transmission rack 902 meshes with a transmission gear 915. The transmission gear 915 rotates under the drive of the second drive assembly. A top material block 903 for supporting the bar stock is fitted on the mounting base 901. A kicking block 909 is also rotatably mounted on the mounting base 901. A follower bearing 910 is fitted on the kicking block 909. The follower bearing 910 engages with a shaped guide rail 911 fixed on the side wall of one side frame 601. The rotating transmission gear 915 drives the mounting base 901 to move linearly through the transmission rack 902, thereby lifting the bar stock in the storage area 7 to the discharge guide through the top material block 903. Simultaneously, the mounting base 901 drives the follower bearing 910 to roll along the shape guide rail 911, thereby causing the kick block 909 to move along the contour curve of the shape guide rail 911, and thus pushing the excess bar back into the storage area 7 through the kick block 909; it also includes a drive cylinder 912 fixed to the side wall of one side frame 601, the output end of the drive cylinder 912 is connected to the support rod 913, the drive cylinder 912 extends, the drive support rod 913 extends, so that the outer wall surface of the support rod 913 contacts the outer circumferential surface of the corresponding bar, thereby limiting the bar on the discharge guide plate 607; the drive cylinder 912 retracts, driving the support rod 913 to retract, thereby releasing the limitation on the corresponding bar, and thus causing the corresponding bar to roll along the inclined direction of the discharge guide plate 607. By setting the kicking block 909 and the shape guide rail 911, other bars above the bar that are in contact with the top bar block 903 can be kicked, so that the corresponding bar falls back into the storage area 7, ensuring that the top bar block 903 can only transport one bar at a time, thereby achieving precise and orderly feeding one by one.

[0054] Several linear bearing seats 914 are fixed on the wall surface of the corresponding side frame 601. A linear bearing is installed in each linear bearing seat 914. The support rod 913 achieves sliding engagement with the side frame 601 through the linear bearing, thereby improving the motion stability of the support rod 913 and the support stability of the bar stock.

[0055] Slide rail assemblies 604 are respectively installed on the inner side walls of the two side frames 601, and bearing assemblies 908 are respectively installed on the two opposite outer side walls of the mounting base 901. Each bearing assembly 908 includes several rolling bearings. Each bearing assembly 908 and each slide rail assembly 604 are installed in a one-to-one correspondence, thereby realizing the sliding installation of the mounting base 901 between the two side frames 601, and thus ensuring the movement stability of the mounting base 901.

[0056] The second drive assembly includes a second main shaft 12 rotatably mounted on the mounting frame 1 and a second motor 10. The output end of the second motor 10 is connected to the second main shaft 12 via a second chain drive assembly 11. A single transmission gear 915 is fixed on the outer circumferential surface of the second main shaft 12. The second motor 10 drives the second main shaft 12 to rotate via the second chain drive assembly 11, thereby driving the transmission gear 915 to rotate simultaneously. The second drive assembly is used to drive all the material conveying mechanisms 9 to work, thereby lifting the bar stock in the storage area 7 one by one to the discharge end of the transfer module. The second chain drive assembly 11 includes a second driving sprocket connected to the output end of the second motor 10 and a second driven sprocket fixed on the outer circumferential surface of the second main shaft 12. A second chain is fitted between the second driving sprocket and the second driven sprocket. The second motor 10 drives the second driving sprocket to rotate, which in turn drives the second driven sprocket to rotate via the second chain, thereby driving the second main shaft 12 to rotate.

[0057] like Figure 8 As shown, in a single material conveying mechanism 9, the top material block 903 and the mounting base 901 are rotatably engaged through a third hinge shaft. At the same time, a pull rod element is also installed between the top material block 903 and the mounting base 901. The structure of the pull rod element is as follows: it includes a pull rod seat 906 fixed on the mounting base 901, a top material pull rod 905 is installed in the middle of the pull rod seat 906, one end of the top material pull rod 905 extends to the outside of the pull rod seat 906 and is hinged to the top material block 903 through a pull rod joint, the other end of the top material pull rod 905 extends to the outside of the pull rod seat 906 and is engaged with a limiting block 907, and a spring 904 is sleeved on the outer circumference of the top material pull rod 905. The spring 904 is installed between the pull rod seat 906 and the pull rod joint. By setting a tie rod element, the top material block 903 can rotate relative to the mounting base 901 within a certain angle range. During the resetting process of the top material block 903 with the mounting base 901, under the pushing action of the bar material in the storage area 7, the top material block 903 can rotate around the third hinge axis, causing the top material tie rod 905 to slide relative to the tie rod seat 906 and drive the limiting block 907 to make a linear movement away from the tie rod seat 906, so that the top material block 903 can avoid the bar material in the storage area 7 and achieve resetting. When the top material block 903 has completed resetting and needs to support and lift the bar material again, under the action of the spring 904, the top material tie rod 905 slides in the opposite direction relative to the tie rod seat 906, thereby driving the limiting block 907 to make a linear movement closer to the tie rod seat 906 until the limiting block 907 is in contact with the tie rod seat 906, thereby causing the top material block 903 to rotate in the opposite direction around the third hinge axis, and maintain its rotation angle after rotating to the position, so as to achieve stable support for the bar material.

[0058] The working process of this utility model is as follows:

[0059] First, the entire batch of bar stock is placed at the inlet of the conveying mechanism 5. The conveying mechanism 5 then moves the bar stock forward step by step, so that the bar stock enters the inlet of the transfer module in an orderly manner.

[0060] Specifically, within a single conveying mechanism 5, the rotating shaft 503 drives the second link 506 to swing via the first link 505, thereby causing the movable plate 502 to swing relative to the fixed plate 501. In turn, the movable plate 502 lifts up the corresponding bar material, conveys it forward a certain distance, and then puts the bar material down to achieve one forward conveying step.

[0061] Subsequently, materials are supplied to the backend equipment one by one through the transfer module. Specifically,

[0062] First, after the bar stock is transported to the storage area 7 by the conveying mechanism 5, all the limiting cylinders 801 extend at the same time, thereby driving the corresponding limiting plate 803 to rotate around the corresponding connecting shaft 802. This causes the corresponding limiting plate 803 to rotate from below the corresponding receiving plate 603 through the clearance groove 606 until part of its plate body is higher than the top end face of the corresponding receiving plate 603, thereby preventing the bar stock behind from entering the storage area 7.

[0063] Subsequently, the second motor 10 drives the second main shaft 12 to rotate through the second chain transmission assembly 11, thereby simultaneously driving all the transmission gears 915 to rotate. Through the corresponding transmission rack 902, the corresponding mounting base 901 is simultaneously driven to make linear motion (along the arrangement direction of the slide rail assembly 604, which is an inclined straight line), thereby causing the corresponding top material block 903 to push the bar material upward until the bar material contacts the end face of the discharge guide plate 607.

[0064] In a single material handling mechanism 9, as the top material block 903 pushes the bar stock upward, the kicking block 909 rises accordingly and oscillates periodically along the contour curve of the shape guide rail 911. The bar stock located above the bar stock that is in direct contact with the top material block 903 is pushed back into the storage area 7 during the oscillation of the kicking block 909, waiting for the next handling.

[0065] During the process of the top material block 903 pushing the bar stock upward, the drive cylinder 912 extends, and the drive rod 913 extends, so that the end round surface of the support rod 913 extends relative to the end face of the discharge guide plate 607.

[0066] Next, the corresponding bar rolls down along the inclined direction of the discharge guide plate 607, and the support rod 913 prevents the bar from rolling further, thereby limiting the bar.

[0067] At the same time, the second motor 10 reverses and drives all mounting seats 901 to reset. During the reset process of a single mounting seat 901, the kicking block 909 moves along the contour curve of the shape guide rail 911, thereby avoiding the bar stock in the storage area 7. The top block 903 avoids the bar stock in the storage area 7 under the action of the pull rod element.

[0068] Finally, all drive cylinders 912 retract, thereby releasing the corresponding support rod 913 from limiting the bar stock, allowing the single bar stock to enter the feeding end of the back-end equipment, thus achieving feeding one by one.

[0069] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. An automatic feed apparatus for a cold-cutting machine, characterized by: Includes an installation frame (1), on which a handling module and a transfer module are respectively installed along the width direction; The transport module includes several transport mechanisms (5) arranged at intervals along the length of the mounting frame (1). The transport mechanisms (5) move simultaneously under the drive of the first drive component, thereby transporting the bar stock from the feed end of the transport module to the feed end of the transfer module, and then discharging it one by one through the transfer module.

2. An automatic feed apparatus for a cold-cutting machine according to claim 1, characterized in that: The first drive assembly includes a first motor (3), the output end of the first motor (3) is connected to the first spindle (2) through the first chain drive assembly (4), the first spindle (2) is rotatably mounted on the mounting frame (1), and the first motor (3) drives the first spindle (2) to rotate through the first chain drive assembly (4).

3. The automatic feeding device for a cold cutting machine as described in claim 2, characterized in that: The structure of a single handling mechanism (5) is as follows: it includes a rotating shaft (503) rotatably mounted on the mounting frame (1), the rotating shaft (503) is arranged parallel to the first main shaft (2) at intervals, and is connected to the first main shaft (2) through a chain drive assembly (504), the end of the rotating shaft (503) is fixed with a first connecting rod (505), and the end of the first connecting rod (505) is hinged to one end of a second connecting rod (506); It also includes a fixing plate (501) fixed to the top of the mounting frame (1), a movable plate (502) is arranged on one side of the fixing plate (501), the two ends of the bottom wall of the movable plate (502) are respectively hinged to the mounting frame (1), and the middle part of the bottom wall of the movable plate (502) is hinged to the other end of the second connecting rod (506). The rotating first main shaft (2) drives the rotating shaft (503) to rotate through the chain drive assembly (504). The rotating shaft (503) drives the first connecting rod (505) to swing, thereby driving the movable plate (502) to undulate relative to the fixed plate (501) through the second connecting rod (506), thus pushing the bar on the fixed plate (501) forward.

4. The automatic feeding device for a cold cutting machine as described in claim 3, characterized in that: In a single handling mechanism (5), the two ends of the bottom wall of the movable plate (502) are respectively hinged to the mounting frame (1) through the first hinge shaft (507) and the second hinge shaft (508).

5. The automatic feeding device for a cold cutting machine as described in claim 1, characterized in that: The transfer module includes several transfer racks (6) arranged at intervals along the length of the mounting frame (1), and the transfer racks (6) are provided with storage areas (7); A limiting mechanism (8) is installed on a single transfer rack (6) to push the bar material at the feed end of the transfer module into the storage area (7) through the limiting mechanism (8); A material conveying mechanism (9) is installed on a single transfer rack (6). The material conveying mechanism (9) transports the bar stock in the storage area (7) one by one to the discharge end of the transfer module for discharge.

6. The automatic feeding device for a cold cutting machine as described in claim 5, characterized in that: The structure of a single transfer rack (6) is as follows: it includes two side racks (601) arranged at intervals and opposite to each other. A V-shaped groove (605) is provided on the top of a single side rack (601). The V-shaped grooves (605) of the two side racks (601) are combined to form a V-shaped storage area (7). A receiving plate (603) is installed on the top of both side frames (601), and a base plate (602) is installed on the bottom of both side frames (601). An inclined discharge guide plate (607) is installed on the top of one side frame (601). The discharge guide plate (607) and the receiving plate (603) are respectively arranged on both sides of the V-shaped groove (605).

7. The automatic feeding device for a cold cutting machine as described in claim 6, characterized in that: The structure of a single limiting mechanism (8) is as follows: it includes a connecting shaft (802) and a limiting cylinder (801) installed between the two side frames (601). The output end of the limiting cylinder (801) is hinged to one end of the limiting plate (803), and the other end of the limiting plate (803) is rotatably engaged with the outer circumferential surface of the connecting shaft (802). The limiting cylinder (801) extends and pushes the limiting plate (803) to rotate relative to the connecting shaft (802), thereby causing the limiting plate (803) to extend through the clearance groove (606) opened on the end face of the receiving plate (603).

8. The automatic feeding device for a cold cutting machine as described in claim 6, characterized in that: The structure of a single material handling mechanism (9) is as follows: it includes a mounting base (901) that is slidably installed between two side frames (601), and a transmission rack (902) is fitted on the side wall of the mounting base (901). The transmission rack (902) meshes with a transmission gear (915), and the transmission gear (915) rotates under the drive of the second drive assembly. The mounting base (901) is fitted with a top block (903) for supporting the bar stock. The mounting base (901) is also rotatably fitted with a kick block (909). The kick block (909) is fitted with a follower bearing (910). The follower bearing (910) cooperates with a shape guide rail (911) fixed on the side wall of a side frame (601). The rotating transmission gear (915) drives the mounting base (901) to make linear motion through the transmission rack (902), thereby lifting the bar stock in the storage area (7) onto the discharge guide plate (607) through the top block (903). At the same time, the mounting base (901) drives the follower bearing (910) to roll along the shape guide rail (911), thereby driving the kick block (909) to move along the contour curve of the shape guide rail (911), and then pushing the excess bar stock back into the storage area (7) through the kick block (909). It also includes a drive cylinder (912) fixed to the side wall of one side frame (601). The output end of the drive cylinder (912) is connected to a support rod (913). When the drive cylinder (912) extends, the support rod (913) extends, so that the outer wall of the support rod (913) contacts the outer circumferential surface of the corresponding bar, thereby limiting the bar on the discharge guide plate (607). When the drive cylinder (912) retracts, it drives the support rod (913) to retract, thereby releasing the limitation on the corresponding bar, and thus causing the corresponding bar to roll along the inclined direction of the discharge guide plate (607).

9. An automatic feeding device for a cold cutting machine as described in claim 8, characterized in that: The second drive assembly includes a second main shaft (12) rotatably mounted on the mounting frame (1) and a second motor (10), the output end of which is connected to the second main shaft (12) via a second chain drive assembly (11); A single transmission gear (915) is fixed on the outer circumference of the second main shaft (12). The second motor (10) drives the second main shaft (12) to rotate through the second chain transmission assembly (11), thereby driving the transmission gear (915) to rotate simultaneously.

10. An automatic feeding device for a cold cutting machine as described in claim 8, characterized in that: In a single material conveying mechanism (9), the top material block (903) and the mounting base (901) are rotatably engaged through a third hinge shaft. At the same time, a pull rod element is also installed between the top material block (903) and the mounting base (901). The structure of the pull rod element is as follows: it includes a pull rod seat (906) fixed on the mounting base (901), a top material pull rod (905) is installed in the middle of the pull rod seat (906), one end of the top material pull rod (905) extends to the outside of the pull rod seat (906) and is hinged to the top material block (903) through the pull rod joint, the other end of the top material pull rod (905) extends to the outside of the pull rod seat (906) and is installed in cooperation with the limiting block (907), and a spring (904) is sleeved on the outer circumference of the top material pull rod (905), and the spring (904) is installed between the pull rod seat (906) and the pull rod joint.

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