Hot treatment blanking system for bars

By designing a combination of rotating base and gripping arm, a non-marking handling system for bar heat treatment blanking was achieved, simplifying the structure, reducing costs, and improving transportation efficiency.

CN122144447APending Publication Date: 2026-06-05QINGDAO YONGXIN METAL PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QINGDAO YONGXIN METAL PROD CO LTD
Filing Date
2026-05-08
Publication Date
2026-06-05

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Abstract

The present application relates to the technical field of bar conveying, and particularly relates to a hot treatment blanking system suitable for bars, which comprises a receiving mechanism for receiving bars, a conveying mechanism for conveying bars, and a carrying mechanism for carrying bars from the receiving mechanism to the conveying mechanism, wherein a plurality of carrying units are arranged in the carrying mechanism and are distributed along the length direction of the bars, each of the carrying units comprises a rotating seat rotating along an axis parallel to the bars, a first grabbing arm and a second grabbing arm sliding out of and into the rotating seat on the rotating seat, the first grabbing arm and the second grabbing arm are symmetrically arranged on the two sides of the rotating seat, a first accommodating groove is arranged on the first grabbing arm, a second accommodating groove is arranged on the second grabbing arm, and the openings of the first accommodating groove and the second accommodating groove are opposite, and a power mechanism is arranged for driving the first grabbing arm and the second grabbing arm to move, so that the structure complexity and cost of the blanking system are effectively reduced without damaging the hot treated bars, and the efficiency of blanking and conveying is improved.
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Description

Technical Field

[0001] This invention relates to the field of bar transport technology, and more particularly to a heat treatment feeding system for bars. Background Technology

[0002] In the heat treatment process of bars, the transport direction of bars needs to be changed due to the layout or processing requirements of heating equipment and the processing requirements of other stations. The unloading system is responsible for conveying the processed bars to the next station as needed, avoiding stacking and jamming, and ensuring that the feeding rhythm is continuously matched with the heat treatment.

[0003] In existing bar stock cutting systems, grippers are typically used to pick up and move the bars. However, in heat treatment scenarios, the surface of the bars softens due to heating, and the existing gripper handling method easily leaves marks on the surface of the bars, affecting their quality. In addition, transporting bars also requires structures such as tracks and linkages to achieve the moving action. These structures are not only large in size and complex in structure, but also costly, and their large range of motion during operation can easily generate significant swaying. Summary of the Invention

[0004] This invention provides a heat treatment feeding system for bars, which can effectively solve the problems in the background art.

[0005] This invention provides a heat treatment blanking system suitable for bars, comprising: A receiving mechanism used to receive bars; Conveying mechanism, used for transporting bars; A handling mechanism is used to move bars from a receiving mechanism to a conveying mechanism; The handling mechanism includes multiple handling units distributed along the length of the bar; each handling unit includes: The rotating seat rotates along an axis parallel to the bar. The first gripping arm and the second gripping arm both slide to extend and retract from the rotating seat; the first gripping arm and the second gripping arm are symmetrically arranged on both sides of the rotating seat; the first gripping arm is provided with a first receiving groove, and the second gripping arm is provided with a second receiving groove, with the openings of the first receiving groove and the second receiving groove facing each other. The power mechanism is used to drive the first gripper arm and the second gripper arm to move. When the rotating seat rotates to face the receiving mechanism, the power mechanism drives the first gripping arm to extend out of the rotating seat and drives the second gripping arm to retract into the rotating seat. At this time, the opening of the first receiving groove faces upward. When the rotating seat rotates to face the conveying mechanism, the power mechanism drives the first gripping arm to retract into the rotating seat and drives the second gripping arm to extend out of the rotating seat. At this time, the opening of the second receiving groove faces upward. When the rotating seat rotates between the receiving mechanism and the conveying mechanism, the power mechanism drives the first gripping arm and the second gripping arm to move, so that the first receiving groove and the second receiving groove are aligned.

[0006] Furthermore, the power mechanism includes: The first guide post and the second guide post are respectively fixedly installed on the side of the first gripper arm and the side of the second gripper arm; The first guide rail and the second guide rail are both fixedly installed in the conveying mechanism, and are used to limit the position of the first guide post and the second guide post respectively, thereby driving the first gripping arm and the second gripping arm to slide.

[0007] Furthermore, the first guide post and the second guide post are respectively arranged on both sides of the conveying mechanism.

[0008] Furthermore, the widths of the first guide rail and the second guide rail gradually increase in opposite directions along the rotation direction of the rotating seat.

[0009] Furthermore, a first rack is provided on the first gripping arm; a second rack is provided on the second gripping arm; The conveying mechanism is equipped with a synchronous gear, with the first rack and the second rack meshing on both sides of the synchronous gear respectively.

[0010] Furthermore, the conveying mechanism also includes a first spring and a second spring. The two ends of the first spring are fixed on the first gripping arm and the rotating seat, respectively, and the two ends of the second spring are fixed on the second gripping arm and the rotating seat, respectively.

[0011] Furthermore, the receiving institutions include: The support frame tilts downwards at the end closest to the handling mechanism. The interceptor bar is fixedly installed at one end of the support frame near the conveying mechanism, and the top of the interceptor bar extends upward.

[0012] Furthermore, the conveying mechanism includes: Multiple drive wheels are distributed along the axial direction of the bar. The limiting plate moves towards and away from the top of the drive wheel at one end; Multiple limit wheels are set on the side of the limit plate near the drive wheel, and each corresponds to one of the multiple drive wheels.

[0013] Furthermore, each handling unit is equipped with a drive shaft that rotates synchronously with the rotating seat and is fixed at the center of the rotating seat; the two drive shafts in two adjacent handling units are connected by a universal joint.

[0014] Furthermore, the multiple transport units in the transport mechanism are divided into multiple groups, each group containing multiple consecutive adjacent transport units, and the orientation of the multiple transport units in each group is evenly arranged along the rotation direction of the rotating seat.

[0015] The technical solution of this invention can achieve the following technical effects: This system utilizes a specially designed handling mechanism to lift the bars throughout the entire unloading process, including picking, handling, and placing them. This avoids applying pressure to the sides of the bars, effectively preventing indentations and ensuring bar quality. Furthermore, the handling mechanism has a small number of components and a simple structure, effectively reducing system costs. The rotating handling method also significantly saves operating space, making it suitable for a wider range of applications. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a heat treatment feeding system suitable for bars; Figure 2 A top view of a heat treatment blanking system suitable for bars; Figure 3 A front view of a heat treatment blanking system suitable for bars; Figure 4 This is a schematic diagram of a bar stock heat treatment feeding system in the picking-up state. Figure 5 A schematic diagram of a heat treatment feeding system for bars in the first transition state; Figure 6 This is a schematic diagram of a bar stock heat treatment feeding system in the feeding state. Figure 7 This is a schematic diagram of a heat treatment blanking system suitable for bars in the second transition state. Figure 8 This is a structural diagram of the handling unit; Figure 9 A schematic diagram of the structure after the supporting structure of the transport unit is hidden.

[0018] Reference numerals: 1. Receiving mechanism; 11. Support frame; 12. Interceptor bar; 2. Conveying mechanism; 21. Power wheel; 22. Limiting plate; 23. Limiting wheel; 3. Transporting mechanism; 31. Rotating seat; 31a. Synchronous gear; 31b. Drive shaft; 32. First gripping arm; 32a. First receiving groove; 32b. First rack; 33. Second gripping arm; 33a. Second receiving groove; 33b. Second rack; 34. First guide post; 35. Second guide post; 36. First guide rail; 37. Second guide rail; 38. First spring; 39. Second spring. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] This invention relates to a heat treatment feeding system suitable for bars, such as... Figures 1-3 As shown, the system comprises three main components: a receiving mechanism 1, a conveying mechanism 2, and a handling mechanism 3. The receiving mechanism 1 receives the bar stock and is connected to the equipment at the previous workstation. After the previous workstation finishes processing the bar stock, it is pushed to the receiving mechanism 1. The conveying mechanism 2 transports the bar stock to the next workstation and is connected to the equipment at that workstation. Once the bar stock is placed in the conveying mechanism 2, it is transported to the equipment at the next workstation for further processing. The handling mechanism 3 is mainly used to move the bar stock from the receiving mechanism 1 to the conveying mechanism 2 to accommodate different feeding requirements between the two workstations. For example, as shown in the figure, when the bar stock comes out of the previous workstation, it rolls horizontally, while the next workstation needs to feed the bar stock along its axis into the equipment. Therefore, the handling mechanism 3 is needed to move the bar stock from the receiving mechanism 1 to the conveying mechanism 2.

[0022] The main structure of receiving mechanism 1 is as follows Figures 1-3 As shown, the system includes a support frame 11 and an interceptor bar 12. The specific structures of each component are as follows: The support frame 11 has one end inclined downwards near the conveying mechanism 3, and the other end connected to the bar outlet of the previous station. This allows the bar to automatically roll toward the conveying mechanism 3 under gravity when it is sent out of the equipment. The end of the support frame 11 near the conveying mechanism 3 has a frame structure, and multiple notches are required at the end to avoid interference with the conveying mechanism 3.

[0023] The intercepting rod 12 is fixedly installed at one end of the support frame 11 near the conveying mechanism 3, with its top extending upwards to form a right angle with the support frame 11. If necessary, cushioning materials such as sponge or rubber can be attached to the intercepting rod 12 to prevent damage from collisions. The intercepting rod 12 can also extend downwards for a certain distance, and reinforcing ribs can be welded to the downward extension to effectively enhance the structural strength of the intercepting rod 12.

[0024] The main structure of conveyor mechanism 2 is as follows Figures 1-3 As shown, the device includes a drive wheel 21, a limiting plate 22, and a limiting wheel 23. The specific structure of each component is as follows: Multiple drive wheels 21 are distributed along the axial direction of the bar. The multiple drive wheels 21 are connected by chains or belts, enabling them to operate synchronously under the drive of a single motor. The drive wheels 21 are provided with V-shaped or U-shaped grooves in the circumferential direction to hold the bar in place and prevent it from falling.

[0025] The limiting plate 22 moves towards and away from the top of the power wheel 21, for example, by pushing it up and down by a push-pull power device, or by hinged the limiting plate 22 to a fixed frame and rotating it by a cylinder.

[0026] Multiple limiting wheels 23 are installed on the limiting plate 22 on one side near the power wheel 21, and each corresponds to one of the power wheels 21. When the limiting plate 22 is close to the top of the power wheel 21, the limiting wheel 23 will abut against the top of the bar to prevent the bar from falling; when the conveying mechanism 3 transports the bar to the conveying mechanism 2, the limiting plate 22 will drive the limiting wheel 23 away from the power wheel 21, clearing the space above the power wheel 21 and avoiding interference with the conveying mechanism 3.

[0027] The overall structure of the conveying mechanism 3 is as follows: Figures 4-9 As shown, the device contains multiple handling units distributed along the length of the bar. Each handling unit is located at a notch in the support frame 11 and between the various drive wheels 21, ensuring that it does not interfere with other components. At least two handling units are provided, enabling them to handle the bar at at least two points, ensuring smooth transport of the bar.

[0028] The main components of each handling unit include a rotating base 31, a first gripping arm 32, and a second gripping arm 33. The specific structure of each component is as follows: The rotating seat 31 rotates along an axis parallel to the bar, and the rotating seats 31 of all the handling units rotate synchronously.

[0029] The first gripping arm 32 and the second gripping arm 33 both slide on the rotating seat 31, extending out of and retracting from it. The first gripping arm 32 and the second gripping arm 33 are symmetrically arranged on both sides of the rotating seat 31. The first gripping arm 32 has a first receiving groove 32a, and the second gripping arm 33 has a second receiving groove 33a. The openings of the first receiving groove 32a and the second receiving groove 33a are opposite each other. The direction pointing from the center line of the rotating seat 31 to the midpoint between the first receiving groove 32a and the second receiving groove 33a is denoted as the orientation of the conveying mechanism 3 during rotation.

[0030] The first gripping arm 32 and the second gripping arm 33 move under the drive of the power mechanism, enabling them to achieve the following working states: Take-up status: such as Figure 4 As shown, at this time, the rotating seat 31 rotates to face the receiving mechanism 1. The power mechanism drives the first gripping arm 32 to extend out of the rotating seat 31 and drives the second gripping arm 33 to retract into the rotating seat 31, so that the opening of the first receiving groove 32a is facing upward and is fully open. The opening of the first receiving groove 32a is aligned with the bar. As the rotating seat 31 rotates, the first receiving groove 32a moves upward and takes away the bar.

[0031] First transition state: such as Figure 5 As shown, at this time, the rotating seat 31 rotates so that it moves from the receiving mechanism 1 to the conveying mechanism 2. During this process, the power mechanism drives the first gripping arm 32 and the second gripping arm 33 to move, so that the first receiving groove 32a and the second receiving groove 33a are aligned and connected to each other. As the rotating seat 31 rotates more towards the conveying mechanism 2, the conveying mechanism 3 will change from the state with the first gripping arm 32 down and the second gripping arm 33 up to the state with the first gripping arm 32 up and the second gripping arm 33 down. When it changes to the latter state, the bar will fall from the first receiving groove 32a into the second receiving groove 33a.

[0032] Material feeding status: such as Figure 6 As shown, the rotating seat rotates to face the conveying mechanism 2. The power mechanism drives the first gripping arm 32 to retract into the rotating seat 31 and drives the second gripping arm 33 to extend out of the rotating seat 31. At this time, the second receiving groove 33a is fully open with its opening facing upward. As the rotating seat 31 rotates, the bar will first descend with the second receiving groove 33a. When the bar falls onto the conveying mechanism 2, it will be intercepted. The second receiving groove 33a will continue to descend and eventually separate from the bar.

[0033] The second transition state: such as Figure 7As shown, at this time, the rotating seat 31 rotates to face from the conveying mechanism 2 to the receiving mechanism 1. During this process, the power mechanism can make the first gripping arm 32 and the second gripping arm 33 reach either the picking state or the first transition state.

[0034] By cycling through the four states described above, continuous feeding and handling of the bar stock can be achieved.

[0035] The power mechanism of the conveying mechanism 3 can be implemented using existing structures, such as using two telescopic cylinders to control the movement of the first gripping arm 32 and the second gripping arm 33 respectively. However, the traditional power device not only requires external wires, oil pipes and other components, but also requires a detection and control system to detect the position of the components and control the action of the power device. Due to the continuous operation requirement of this system, the traditional power system will cause the wires, oil pipes and other components to become tangled and unusable, and the manufacturing and maintenance costs are too high.

[0036] To address the aforementioned issues, this system incorporates a superior handling mechanism and power mechanism, such as... Figures 8-9 As shown, the main structure includes a first guide post 34, a second guide post 35, a first guide rail 36, and a second guide rail 37. The specific structure of each component is as follows: The first guide post 34 and the second guide post 35 are respectively fixedly disposed on the side of the first gripping arm 32 and the side of the second gripping arm 33; the ends of the first guide post 34 and the second guide post 35 extend beyond the side of the rotating seat 31.

[0037] The first guide rail 36 and the second guide rail 37 are both fixedly installed inside the conveying mechanism 3, and are usually fixed to the frame of the conveying mechanism 3 to ensure that their relative positions with the conveying mechanism 3 do not change. The first guide rail 36 and the second guide rail 37 are used to limit the positions of the first guide post 34 and the second guide post 35, thereby driving the sliding of the first gripping arm 32 and the second gripping arm 33.

[0038] With this power mechanism, as long as the conveying mechanism 3 rotates to the corresponding orientation, the first guide rail 36 and the second guide rail 37 can limit the position of the first guide post 34 and the second guide post 35, so that the first gripping arm 32 and the second gripping arm 33 can extend or retract the rotating seat 31 by the corresponding distance. This not only eliminates the need for a complex detection and control system, but also allows the rotating seat 31 to rotate any number of times without tangling. The manufacturing and installation of the components are also relatively simple, which can effectively save manufacturing and maintenance costs.

[0039] Preferably, the first guide post 34 and the second guide post 35 are respectively arranged on both sides of the conveying mechanism 3, and the first guide rail 36 and the second guide rail 37 are also arranged on both sides of the conveying mechanism 3, so as to ensure the correspondence between the first guide post 34 and the first guide rail 36, and the correspondence between the second guide post 35 and the second guide rail 37, and to ensure the accuracy of the movement of the first gripping arm 32 and the second gripping arm 33.

[0040] The first guide post 34 and the second guide post 35 are provided with bearings or rollers at their ends that extend into the first guide rail 36 and the second guide rail 37, so that friction is converted into rolling friction, thereby reducing the wear of the first guide post 34 and the second guide post 35 and reducing the vibration during system operation.

[0041] During installation, the first guide post 34 should be closer to the center of the rotating seat 31 than the first receiving groove 32a, so that the first guide rail 36 will be within the movement trajectory of the bar, avoiding interference with the movement of the bar. Similarly, the second guide post 35 should also be closer to the center of the rotating seat 31 than the second receiving groove 33a during installation.

[0042] The first guide rail 36 and the second guide rail 37 can be a complete circular track. However, to reduce the difficulty of track processing and debugging, only a portion of the track can be processed and set at important locations. However, due to the lack of track constraints, the positions of the first gripping arm 32 and the second gripping arm 33 may have slight deviations. In this case, the width of the first guide rail 36 and the second guide rail 37 needs to be gradually increased in the opposite direction of the rotation direction of the rotating seat 31. This way, even if the positions of the first gripping arm 32 and the second gripping arm 33 deviate, the first guide post 34 and the second guide post 35 can still smoothly enter the first guide rail 36 and the second guide rail 37.

[0043] Preferably, a first rack 32b is provided on the first gripping arm 32, and a second rack 33b is provided on the second gripping arm 33. A synchronous gear 31a is provided in the conveying mechanism 3, and the first rack 32b and the second rack 33b respectively mesh with the two sides of the synchronous gear 31a. By using the synchronization gear 31a, the movements of the first gripping arm 32 and the second gripping arm 33 are linked together. When the first gripping arm 32 extends, the second gripping arm 33 retracts in tandem. This ensures the positional relationship between the first gripping arm 32 and the second gripping arm 33 when picking up and putting down the bar, avoiding interference with the bar. At the same time, this linkage reduces the need for laying the first guide rail 36 and the second guide rail 37. For example, when picking up the bar, without the above linkage function, the first guide rail 36 and the second guide rail 37 are needed to control the positions of the first gripping arm 32 and the second gripping arm 33 respectively. With the linkage function, only one of the first guide rail 36 or the second guide rail 37 is needed to control the positions of the first gripping arm 32 and the second gripping arm 33 simultaneously, which can further reduce the cost of the system.

[0044] Preferably, a first spring 38 and a second spring 39 are also provided in the conveying mechanism 3. The two ends of the first spring 38 are fixed to the first gripping arm 32 and the rotating seat 31, respectively, and the two ends of the second spring 39 are fixed to the second gripping arm 33 and the rotating seat 31, respectively. During installation, first ensure that the first receiving groove 32a and the second receiving groove 33a are aligned, and at this time, the first spring 38 and the second spring 39 are in the same tension state (i.e., the tension generated by the first spring 38 and the second spring 39 is the same). In this way, combined with the aforementioned linkage structure, the first gripping arm 32 and the second gripping arm 33 are in a stable state, and in the stable state, the first receiving groove 32a and the second receiving groove 33a are aligned. In this way, during use, when the first gripping arm 32 or the second gripping arm 33 extends, the first spring 38 or the second spring 39 will be stretched and the second spring 39 will be compressed. The tension generated by the two springs is uneven. When the first guide post 34 or the second guide post 35 leaves the track, the first gripping arm 32 and the second gripping arm 33 can be brought back to a stable state (i.e., the first receiving groove 32a and the second receiving groove 33a are aligned) by the pull of the two springs. This further reduces the need for the track, especially eliminating the need for track installation in the transition state.

[0045] Preferably, each transport unit is provided with a drive shaft 31b that rotates synchronously with the rotating seat 31 and is fixed at the center of the rotating seat 31. The two drive shafts 31b in two adjacent transport units are connected by a universal joint. In this way, even if a slight error occurs during the installation of the transport unit, the error can be eliminated by this connection method, ensuring that the rotating seats 31 of all transport units can rotate synchronously.

[0046] The multiple transport units in the transport mechanism 3 are divided into multiple groups, with each group containing multiple consecutive adjacent transport units. The orientation of the transport units in each group is evenly distributed along the rotation direction of the rotating seat 31. For example, if there are nine transport units numbered 1 to 9 in sequence, they are divided into three groups: 1 to 3, 4 to 6, and 7 to 9, with the orientations of the three transport units in each group differing by 120°. Alternatively, if there are six transport units numbered 1 to 6 in sequence, they are divided into three groups: 1 to 2, 3 to 4, and 5 to 6, with the orientations of the two transport units in each group differing by 180°. This ensures that the overall weight of the transport mechanism 3 is evenly distributed circumferentially and effectively improves material handling efficiency. For instance, if each group contains two transport units, when one transport unit rotates towards the conveying mechanism 2, the other transport unit, 180° away, will rotate towards the receiving mechanism 1. This means that the rotating seat 31 can transport two bars per revolution, significantly improving efficiency.

[0047] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely exemplary illustrations of the application as defined herein, and are to be considered as covering any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its scope. Thus, if such modifications and modifications fall within the scope of this application and its equivalents, this application intends to include such modifications and modifications.

Claims

1. A heat treatment feeding system for bars, characterized in that, include: Receiving mechanism (1), used to receive rods; Conveying mechanism (2), used for transporting bars; The transport mechanism (3) is used to transport the bar from the receiving mechanism (1) to the conveying mechanism (2); The conveying mechanism (3) is provided with multiple conveying units distributed along the length of the bar; each conveying unit includes: Rotating seat (31) rotates along an axis parallel to the bar; The first gripping arm (32) and the second gripping arm (33) both slide on the rotating seat (31) to extend and retract from the rotating seat (31); the first gripping arm (32) and the second gripping arm (33) are symmetrically arranged on both sides of the rotating seat (31); the first gripping arm (32) is provided with a first receiving groove (32a), and the second gripping arm (33) is provided with a second receiving groove (33a), and the openings of the first receiving groove (32a) and the second receiving groove (33a) are opposite to each other; A power mechanism is used to drive the first gripping arm (32) and the second gripping arm (33) to move; When the rotating seat (31) rotates to face the receiving mechanism (1), the power mechanism drives the first gripping arm (32) to extend out of the rotating seat (31) and drives the second gripping arm (33) to retract into the rotating seat (31). At this time, the opening of the first receiving groove (32a) faces upward. When the rotating seat (31) rotates to face the conveying mechanism (2), the power mechanism drives the first gripping arm (32) to retract into the rotating seat (31) and drives the second gripping arm (33) to extend out of the rotating seat (31). At this time, the opening of the second receiving groove (33a) faces upward. When the rotating seat (31) rotates between the receiving mechanism (1) and the conveying mechanism (2), the power mechanism drives the first gripping arm (32) and the second gripping arm (33) to move, so that the first receiving groove (32a) and the second receiving groove (33a) are aligned.

2. The heat treatment feeding system for bars according to claim 1, characterized in that, The power mechanism includes: The first guide post (34) and the second guide post (35) are respectively fixedly disposed on the side of the first gripping arm (32) and the side of the second gripping arm (33); The first guide rail (36) and the second guide rail (37) are both fixedly installed in the conveying mechanism (3) and are used to limit the position of the first guide post (34) and the second guide post (35) respectively, thereby driving the sliding of the first gripping arm (32) and the second gripping arm (33).

3. The heat treatment feeding system for bars according to claim 2, characterized in that, The first guide post (34) and the second guide post (35) are respectively disposed on both sides of the conveying mechanism (3).

4. The heat treatment feeding system for bars according to claim 2, characterized in that, The widths of the first guide rail (36) and the second guide rail (37) gradually increase in opposite directions along the rotation direction of the rotating seat (31).

5. The heat treatment feeding system for bars according to claim 2, characterized in that, The first gripping arm (32) is provided with a first rack (32b); the second gripping arm (33) is provided with a second rack (33b); The conveying mechanism (3) is provided with a synchronous gear (31a), and the first rack (32b) and the second rack (33b) respectively mesh with the two sides of the synchronous gear (31a).

6. The heat treatment feeding system for bars according to claim 5, characterized in that, The conveying mechanism (3) further includes a first spring (38) and a second spring (39). The two ends of the first spring (38) are fixed on the first gripping arm (32) and the rotating seat (31) respectively, and the two ends of the second spring (39) are fixed on the second gripping arm (33) and the rotating seat (31) respectively.

7. The heat treatment feeding system for bars according to claim 1, characterized in that, The receiving mechanism (1) includes: The support frame (11) is inclined downward at one end near the conveying mechanism (3); An interceptor bar (12) is fixedly mounted on one end of the support frame (11) near the transport mechanism (3), and the top of the interceptor bar (12) extends upward.

8. The heat treatment feeding system for bars according to claim 1, characterized in that, The conveying mechanism (2) includes: Multiple drive wheels (21) are distributed along the axial direction of the bar; The limiting plate (22) moves towards and away from the top of the power wheel (21) at one end; Multiple limiting wheels (23) are disposed on the side of the limiting plate (22) near the power wheel (21) and correspond one-to-one with the multiple power wheels (21).

9. The heat treatment feeding system for bars according to claim 1, characterized in that, Each of the transport units is provided with a drive shaft (31b) that rotates synchronously with the rotating seat (31) and is fixed at the center of the rotating seat (31); the two drive shafts (31b) in two adjacent transport units are connected by a universal joint.

10. The heat treatment feeding system for bars according to claim 1, characterized in that, The multiple transport units in the transport mechanism (3) are divided into multiple groups, each group having multiple consecutive adjacent transport units, and the orientation of the multiple transport units in each group is evenly arranged along the rotation direction of the rotating seat (31).