Bidirectional assembly line structure for removing pins from metal ingots and operation method of bidirectional assembly line structure

Abstract

The invention discloses a metal ingot pin disengaging bidirectional assembly line structure and an operation method thereof, and belongs to the field of alloy smelting equipment, and the metal ingot pin disengaging bidirectional assembly line structure comprises two assembly lines and two transfer devices; the two assembly lines are parallel and are arranged in opposite directions; the assembly line comprises a clamping mechanism, a pin disengaging device and a conveying mechanism and is divided into a clamping area, a pin disengaging area and a transferring area. The clamping mechanism is detachably arranged on the conveying mechanism; the pin disengaging device is located in the pin disengaging area. The conveying mechanism is used for driving the clamping mechanism loaded with the metal ingot to be subjected to pin disengaging to be conveyed to the pin disengaging area from the clamping area for pin disengaging treatment, and then the metal ingot is conveyed to the transferring area; each transfer device is arranged between the transfer area of one assembly line and the clamping area of the other assembly line; and the transfer device can transfer the clamping mechanism on one assembly line to the clamping area of the other assembly line after clamping a new to-be-pin-removed metal ingot. On the premise that no extra equipment is added, the reciprocating distance and time of the transfer device are shortened, and the denitration efficiency is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of alloy smelting equipment, and specifically relates to a bidirectional assembly line structure for removing pins from metal ingots and its operation method. Background Technology

[0002] A metal ingot is a solid casting product formed by smelting and melting one or more metals, casting, and cooling. During the production of metal ingots, handling and processing are required. Because industrially produced metal ingots are often weighed in tons, some ingots have pins embedded during the casting process to assist in positioning and lifting, facilitating the transfer of the ingots. Once the metal ingot has cooled and solidified, these pins need to be removed, forming the finished ingot.

[0003] Traditionally, removing pins from metal ingots relies heavily on manual methods such as hammering. In some small smelters, workers use simple tools like hammers to repeatedly strike the pins, thus removing them from the ingot. This method is extremely labor-intensive, inefficient, and the manual operation can lead to inconsistent ingot quality, making it difficult to meet the efficiency and quality requirements of large-scale production.

[0004] With the development of automation technology, various pin removal devices have been introduced into the production lines for removing pins from metal ingots to assist in the pin removal process. However, such production lines typically transport unpinned metal ingots from a pre-designated semi-finished product area to the starting point of the production line. After pin removal by the pin removal device, the ingots are transported to the end point of the production line, where a transfer device lifts the pin-removed ingots to the finished product stacking area. In this operation mode, the transfer device needs to shuttle back and forth between the starting and ending points of the production line multiple times, resulting in long routes, significant time waste, and consequently low pin removal efficiency. If multiple transfer devices are used for lifting on a single production line to improve efficiency, production costs will increase significantly. Therefore, there is an urgent need for a bidirectional pin removal production line structure and its operation method that can solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a bidirectional assembly line structure and operation method for removing pins from metal ingots, addressing the aforementioned shortcomings. This aims to solve the problem of low pin removal efficiency in current pin removal assembly lines due to long metal ingot transfer times. To achieve the above objective, this invention provides the following technical solution: A bidirectional production line structure for removing pins from metal ingots includes two production lines and two transfer devices. The two production lines are parallel and arranged in opposite directions. Each production line includes a clamping mechanism, a pin-removing device, and a conveying mechanism, and is sequentially divided into a clamping area, a pin-removing area, and a transfer area along the conveying direction of the conveying mechanism. The clamping mechanism is detachably mounted on the conveying mechanism. The pin-removing device is located above the conveying mechanism and in the pin-removing area. The conveying mechanism drives the clamping mechanism, which holds the metal ingot to be depinned, to be conveyed from the clamping area to the pin-removing area. After being depinned by the pin-removing device, the ingot is conveyed to the transfer area. Each transfer device is located between the transfer area of ​​one production line and the clamping area of ​​the other production line. The transfer device is used to lift the depinned metal ingot from the clamping mechanism, lift in the metal ingot to be depinned, and then transfer the clamping mechanism holding the metal ingot to be depinned to the clamping area of ​​the other production line.

[0006] Furthermore, the conveying mechanism includes a conveying platform, a chain assembly, and a drive motor; a plurality of rollers are arranged at equal intervals along the length direction on the conveying platform; the rollers are supported on the conveying platform and are parallel to the width direction of the conveying platform; the clamping mechanism is supported above the plurality of rollers and is detachably connected to the chain assembly; the drive motor is driven to the chain assembly, and by driving the chain assembly to move, the clamping mechanism moves along the conveying direction.

[0007] Furthermore, the transport platform is also equipped with a tensioning device; the chain assembly includes two traction chains arranged parallel to each other along the length of the transport platform; the two traction chains are movably installed on the transport platform through the tensioning device and move synchronously under the drive of the drive motor; the tensioning device is used to tension the traction chains after they are connected to the clamping mechanism; the starting ends of the two traction chains are simultaneously connected to one end of the clamping mechanism, and the ending ends of the two traction chains are simultaneously connected to the other end of the clamping mechanism.

[0008] Furthermore, the clamping mechanism includes a base plate and two clamping block assemblies; the clamping block assemblies are adjustablely disposed above the base plate, and can clamp metal ingots of different sizes by changing the clamping range; the two clamping block assemblies are arranged sequentially along the length direction of the base plate.

[0009] Furthermore, each clamping block assembly includes two fixed clamping blocks and two first movable clamping blocks; the four fixed clamping blocks of the two clamping block assemblies are respectively disposed around the upper wall of the base plate; the fixed clamping blocks are provided with recesses that contact and cooperate with the metal ingot, and the four recesses are symmetrical about the center of the base plate; the base plate has two parallel first guide rails extending along the length direction in the center; the two first movable clamping blocks of each clamping block assembly are respectively slidably engaged on the two first guide rails, and in each clamping block assembly, the recesses of the first movable clamping blocks are all arranged in a direction away from the center of the base plate.

[0010] Furthermore, the base plate is also provided with a plurality of second guide rails; the second guide rails are arranged along the width direction of the base plate and extend toward the center of the base plate; the plurality of second guide rails are arranged in pairs along the length direction of the base plate on the front and rear sides of the base plate; the clamping block assembly also includes a plurality of second movable clamping blocks; the second movable clamping blocks correspond one-to-one with the second guide rails and slide on the corresponding second guide rails.

[0011] Furthermore, the pin release device has a pin release channel through which the clamping mechanism passes.

[0012] Furthermore, the transfer device is a crane.

[0013] A method for operating a two-way pin removal production line for metal ingots, employing the aforementioned two-way pin removal production line structure for metal ingots, includes the following steps: when a metal ingot on one production line undergoes pin removal processing by a pin removal device and is transported to the transfer area of ​​the production line via a clamping mechanism, the transfer device first lifts the metal ingot from the clamping mechanism and then lifts a metal ingot to be depinned into the clamping mechanism; then, the clamping mechanism containing the new metal ingot to be depinned is transferred to the clamping area of ​​another production line.

[0014] The beneficial effects of this invention are: 1. Without adding additional equipment, the present invention changes the transfer route by placing the transfer device between two opposing production lines, so that the transfer device does not need to travel long distances back and forth between the start and end points of a single production line, thus greatly shortening the transfer route and the required time, and significantly improving the destocking efficiency of the production line.

[0015] 2. The clamping mechanism of the present invention can not only flexibly adapt to the processing requirements of different models by adjusting the clamping range, but also clamp two kinds of metal ingots at the same time, reducing the changeover and adjustment time, and improving the continuity of production line operations and overall production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembly line structure of the present invention; Figure 2 This is a cross-sectional view of one of the production lines of this invention; Figure 3 This is a three-dimensional structural schematic diagram of the clamping mechanism of the present invention; In the attached diagram: 1. Production line; 2. Transfer device; 3. Clamping mechanism; 4. Pin removal device; 5. Conveying mechanism; 31. Base plate; 32. Fixed clamping block; 33. First movable clamping block; 34. Second movable clamping block; 41. Pin removal channel; 51. Transport table; 52. Chain assembly; 53. Drive motor; 311. First guide rail; 312. Second guide rail; 511. Roller; 512. Tensioning device. Detailed Implementation

[0017] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0018] In the description of this invention, "first feature" and "second feature" may include one or more of the features.

[0019] In the description of this invention, "a plurality of" means two or more.

[0020] In the description of this invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0021] In the description of this invention, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0022] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the following embodiments.

[0024] Example 1: See attached Figure 1A bidirectional assembly line structure for removing pins from metal ingots includes two assembly lines 1 and two transfer devices 2. The two assembly lines 1 are parallel and arranged in opposite directions. Each assembly line 1 includes a clamping mechanism 3, a pin removal device 4, and a conveying mechanism 5, and is sequentially divided into a clamping area, a pin removal area, and a transfer area along the conveying direction of the conveying mechanism 5. The clamping mechanism 3 is detachably mounted on the conveying mechanism 5. The pin removal device 4 is located above the conveying mechanism 5 and in the pin removal area. The conveying mechanism 5 drives the clamping mechanism 3, which holds the metal ingot to be depinned, to be conveyed from the clamping area to the pin removal area. After being depinned by the pin removal device 4, the ingot is conveyed to the transfer area. Each transfer device 2 is located between the transfer area of ​​one assembly line 1 and the clamping area of ​​the other assembly line 1. The transfer device 2 is used to lift the depinned metal ingot off the clamping mechanism 3, lift in the metal ingot to be depinned, and then transfer the clamping mechanism 3 holding the metal ingot to be depinned to the clamping area of ​​the other assembly line 1. As described above, production line 1 is used to remove pins from metal ingots after casting and cooling, and is sequentially divided into a clamping area, a pin removal area, and a transfer area along the conveying direction of the conveying mechanism 5. The clamping area, as the starting point of production line 1, is where metal ingots awaiting pin removal are placed. Each production line 1 consists of a clamping mechanism 3, a pin removal device 4, and a conveying mechanism 5. The clamping mechanism 3 is detachably mounted on the conveying mechanism 5 and is used to clamp and fix the metal ingot. The clamping mechanism 3 can be conveyed sequentially from the clamping area to the pin removal area and the transfer area via the conveying mechanism 5. The pin removal device 4 is located above the conveying mechanism 5 and in the pin removal area, and can perform pin removal processing on the metal ingots passing through the pin removal area. The metal ingots that have completed the pin removal operation are conveyed by the conveying mechanism 5 to the transfer area, which is the end point of the production line 1. This invention features two parallel and reverse-arranged production lines 1. Each transfer device 2 is positioned between the transfer area of ​​one production line 1 and the clamping area of ​​the other. Without adding additional equipment, it can lift de-pinned metal ingots from the clamping mechanism 3 located in the transfer area of ​​one production line. Each production line 1 can be surrounded by a finished product stacking area and a semi-finished product area. After the transfer device 2 lifts the de-pinned metal ingot and places it in the finished product stacking area, a metal ingot to be de-pinned can be lifted from the nearby semi-finished product area, clamped into the clamping mechanism 3, and then the clamping mechanism 3 holding the metal ingot to be de-pinned is transferred together to the clamping area of ​​the other production line, allowing the other production line 1 to perform the de-pinning operation on the metal ingot. This invention, through the coordinated arrangement of two reverse production lines and transfer devices, completely changes the transfer route of the transfer device 2, significantly shortening the transportation distance and transfer time of the metal ingots, and greatly improving the de-pinning efficiency of the production line 1. Furthermore, this arrangement allows the two production lines 1 to cooperate with each other for continuous pin removal, which further improves pin removal efficiency compared to the independent operation of the two production lines 1.

[0025] Example 2: See attached Figures 1-3 Based on Embodiment 1, the conveying mechanism 5 includes a conveying platform 51, a chain assembly 52, and a drive motor 53. A plurality of rollers 511 are arranged at equal intervals along the length direction of the conveying platform 51. The rollers 511 are supported on the conveying platform 51 and are parallel to the width direction of the conveying platform 51. The clamping mechanism 3 is supported above the rollers 511 and is detachably connected to the chain assembly 52. ​​The drive motor 53 is driven by the chain assembly 52, and by driving the chain assembly 52, it moves the clamping mechanism 3 along the conveying direction. From the above structure, it can be seen that the conveying mechanism 5, through the coordinated operation of the conveying platform 51, the chain assembly 52, and the drive motor 53, conveys the clamping mechanism 3, which contains the metal ingot to be de-pinned, along the directions of the clamping area, the de-pinning area, and the transfer area. The transport platform 51 serves as the supporting base for the clamping mechanism 3. Several rollers 511 are arranged at equal intervals along its length. During transport, the bottom of the clamping mechanism 3 simultaneously contacts multiple rollers 511, allowing it to move smoothly along the transport direction under the rolling support of the rollers 511. The clamping mechanism 3 is detachably connected to the chain assembly 52. ​​During transport, the clamping mechanism 3 can maintain its connection with the chain assembly 52, and the chain assembly 52 is driven to move along the transport direction of the assembly line 1 by the drive motor 53, causing the clamping mechanism 3 to move synchronously. When the depinning operation is completed, the clamping mechanism 3 can be disconnected from the chain assembly 52 in the transfer area, facilitating transfer by the transfer device 2.

[0026] The transport platform 51 is also equipped with a tensioning device 512; the chain assembly 52 includes two parallel traction chains arranged along the length of the transport platform 51; the two traction chains are movably mounted on the transport platform 51 via the tensioning device 512 and move synchronously under the drive of the drive motor 53; the tensioning device 512 is used to tension the traction chains after they are connected to the clamping mechanism 3; the starting ends of the two traction chains are simultaneously connected to one end of the clamping mechanism 3, and the ending ends of the two traction chains are simultaneously connected to the other end of the clamping mechanism 3. As can be seen from the above structure, the tensioning device 512 is located on both sides of the starting and ending points of the transport platform 51, enabling it to tension the traction chains on the transport platform 51 after they are connected to the clamping mechanism 3, and ensuring that the traction chains can provide stable traction to the clamping mechanism 3 by simultaneously connecting the starting ends of the two traction chains to one end of the clamping mechanism 3 and the ending ends to the other end of the clamping mechanism 3. When the drive motor 53 is working, its output power is transmitted to the two traction chains, so that the two traction chains synchronously pull the clamping mechanism 3 along the conveying direction, so that the clamping mechanism 3 moves smoothly along the conveying direction under the support of several rollers 511 on the transport table 51.

[0027] Example 3: See attached Figures 1-3Based on Embodiment 2, the clamping mechanism 3 includes a base plate 31 and two clamping block assemblies. The clamping block assemblies are adjustablely positioned above the base plate 31, allowing for the clamping of metal ingots of different sizes by changing their clamping range. The two clamping block assemblies are arranged sequentially along the length of the base plate 31. As can be seen from the above structure, by setting the clamping block assemblies on the base plate 31, the clamping range of the clamping block assemblies can be adjusted to meet the clamping requirements of metal ingots of different sizes, thus improving the applicability of the clamping mechanism 3. Furthermore, in the large-scale industrial production of metal ingots, since the required products are often not limited to one type, there may be situations where it is necessary to change the metal ingot type on production line 1 for de-sinking operations. Therefore, the present invention provides two clamping block assemblies, which can be adjusted to two different clamping ranges to match two different types of metal ingots. After the pin removal process of the first type of metal ingot is completed, the second type of metal ingot to be removed can be quickly hoisted to the other clamping block assembly for clamping. This allows for quick changeover, meets diverse production needs, and greatly improves the continuity of production line operations and overall production efficiency.

[0028] Each clamping block assembly includes two fixed clamping blocks 32 and two first movable clamping blocks 33. The four fixed clamping blocks 32 of the two clamping block assemblies are distributed around the upper wall of the base plate 31. Each fixed clamping block 32 has a first recess that contacts and engages with the metal ingot, and the four first recesses are symmetrically arranged around the center of the base plate 31. Two parallel first guide rails 311 extending along the length direction are opened in the center of the base plate 31. The two first movable clamping blocks 33 of each clamping block assembly are slidably engaged on the two first guide rails 311, and each first movable clamping block 33 has a second recess that faces away from the center of the base plate 31. The second recesses engage with the first recesses to achieve stable clamping of the left and right sides of the metal ingot. From the above structure, it can be seen that the fixed clamping blocks 32 are fixedly connected to the base plate 31, while the first movable clamping blocks 33 can slide left and right along the first guide rails 311 to adjust the clamping range. During clamping, the first recess of the fixed clamping block 32 engages with the side of the metal ingot furthest from the center of the base plate 31, and the first movable clamping block 33 engages with the side of the metal ingot furthest from the center of the base plate 31, achieving stable clamping of the metal ingot in the left-right direction. Simultaneously, since the two clamping block assemblies are arranged sequentially along the length of the base plate 31, and the clamping range of the first movable clamping block 33 in each assembly can be independently adjusted, the clamping mechanism 3 can simultaneously clamp two different sizes of metal ingots and flexibly adjust according to the actual size of the metal ingot.

[0029] The base plate 31 is also provided with several second guide rails 312; the second guide rails 312 are arranged along the width direction of the base plate 31 and extend towards the center of the base plate 31; the several second guide rails 312 are arranged in pairs along the length direction of the base plate 31 on the front and rear sides of the base plate 31; the clamping block assembly also includes several second movable clamping blocks 34; the second movable clamping blocks 34 correspond one-to-one with the second guide rails 312 and slide in cooperation with the corresponding second guide rails 312. As can be seen from the above structure, the second guide rails 312 are used to cooperate with the corresponding second movable clamping blocks 34, and on the basis of the clamping mechanism 3 clamping the metal ingot left and right, further provide clamping in the front and rear direction for the metal ingot, enhance the clamping stability, and the clamping range along the front and rear direction of the base plate 31 can be adjusted by adjusting the position of the second movable clamping blocks 34 on the second guide rails 312.

[0030] In addition, the present invention can also lock the relative positions between the first movable clamping block 33 and the first guide rail 311 and the second movable clamping block 34 and the second guide rail 312 by adding a locking structure. The specific setting of the locking structure belongs to the prior art and there are many implementation methods, such as adding a limit block, etc., so it will not be described in detail here.

[0031] The pin removal device 4 has a pin removal channel 41 through which the clamping mechanism 3 passes. As can be seen from the above structure, when the clamping mechanism 3 moves along the conveying direction under the drive of the conveying mechanism 5, it carries the metal ingot to be removed, i.e., into the pin removal area, and through the pin removal channel 41 into the pin removal device 4, where the pin removal device 4 performs the pin removal process. After the process is completed, the clamping mechanism 3 continues to carry the metal ingot through the pin removal channel 41 and convey it to the transfer area.

[0032] The transfer device 2 is a crane. As can be seen from the above structure, the crane can transfer metal ingots by lifting. Specifically, it can use equipment such as a boom crane or a hoist.

[0033] Example 4: See attached Figures 1-3 This embodiment provides an operation method for a bidirectional production line for removing pins from metal ingots. It is applied to the bidirectional production line structure for removing pins from metal ingots described in any of the embodiments 1 to 3, and includes the following steps: When a metal ingot on one production line 1 is depinned by the pin removal device 4 and is transported to the transfer area of ​​the production line 1 by the clamping mechanism 3, the transfer device 2 first lifts away the metal ingot on the clamping mechanism 3, and then lifts a metal ingot to be depinned into the clamping mechanism 3; then, the clamping mechanism 3 containing the new metal ingot to be depinned is transferred to the clamping area of ​​another production line 1.

[0034] As described above, this invention utilizes two transfer devices 2 that reciprocate on two opposing production lines 1, significantly improving the transfer efficiency of metal ingots without adding extra equipment. After a metal ingot on one production line 1 is processed by the pin removal device 4, it is transported to the transfer area by the clamping mechanism 3. The transfer device 2 first removes the depinned metal ingot, then loads in a new metal ingot to be depinned. Subsequently, the clamping mechanism 3, containing the new metal ingot, jointly transfers the ingot to the clamping area of ​​the other production line 1, where it undergoes pin removal processing along the transport direction of the other production line 1. This arrangement eliminates the need for the two transfer devices 2 to travel long distances between the start and end points of their respective production lines 1, significantly shortening the transfer route and time, and reducing energy consumption. Furthermore, it enables the two production lines to form a continuous closed loop, significantly improving the pin removal efficiency of production line 1.

[0035] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A bidirectional automated production line structure for removing pins from metal ingots, characterized in that: It includes two production lines (1) and two transfer devices (2); the two production lines (1) are parallel and arranged in opposite directions; each production line (1) includes a clamping mechanism (3), a pin removal device (4), and a conveying mechanism (5), and is divided into a clamping area, a pin removal area, and a transfer area along the conveying direction of the conveying mechanism (5); the clamping mechanism (3) is detachably mounted on the conveying mechanism (5); the pin removal device (4) is located above the conveying mechanism (5) and in the pin removal area; the conveying mechanism (5) is used for The clamping mechanism (3) carrying the metal ingot to be depinned is driven to be transported from the clamping area to the depin removal area. After the depin removal device (4) removes the depin, it is transported to the transfer area. Each transfer device (2) is located between the transfer area of ​​one production line (1) and the clamping area of ​​another production line (1). The transfer device (2) is used to lift the depinned metal ingot off the clamping mechanism (3) and lift the metal ingot to be depinned in, and then transfer the clamping mechanism (3) holding the metal ingot to be depinned to the clamping area of ​​another production line (1).

2. The bidirectional automated production line structure for removing pins from metal ingots according to claim 1, characterized in that: The conveying mechanism (5) includes a conveying platform (51), a chain assembly (52), and a drive motor (53); a plurality of rollers (511) are arranged at equal intervals along the length direction on the conveying platform (51); the rollers (511) are supported on the conveying platform (51) and are parallel to the width direction of the conveying platform (51); the clamping mechanism (3) is supported above the plurality of rollers (511) and is detachably connected to the chain assembly (52); the drive motor (53) is driven to the chain assembly (52), and drives the clamping mechanism (3) to move along the conveying direction by driving the chain assembly (52).

3. The bidirectional automated production line structure for removing pins from metal ingots according to claim 2, characterized in that: The transport platform (51) is also provided with a tensioning device (512); the chain assembly (52) includes two traction chains arranged along the length of the transport platform (51) and parallel to each other; the two traction chains are movably installed on the transport platform (51) through the tensioning device (512) and are driven synchronously by the drive motor (53); the tensioning device (512) is used to tension the traction chains after they are connected to the clamping mechanism (3); the starting ends of the two traction chains are simultaneously connected to one end of the clamping mechanism (3), and the ends of the two traction chains are simultaneously connected to the other end of the clamping mechanism (3).

4. The bidirectional automated production line structure for removing pins from metal ingots according to claim 1, characterized in that: The clamping mechanism (3) includes a base plate (31) and two clamping block assemblies; the clamping block assemblies are adjustablely disposed above the base plate (31) and can clamp metal ingots of different sizes by changing the clamping range; the two clamping block assemblies are arranged sequentially along the length direction of the base plate (31).

5. The bidirectional automated production line structure for removing pins from metal ingots according to claim 4, characterized in that: Each clamping block assembly includes two fixed clamping blocks (32) and two first movable clamping blocks (33); the four fixed clamping blocks (32) of the two clamping block assemblies are respectively arranged around the upper wall of the base plate (31); the fixed clamping blocks (32) are provided with recesses that contact and cooperate with the metal ingot, and the four recesses are symmetrical about the center of the base plate (31); the base plate (31) has two parallel first guide rails (311) extending along the length direction in the center; the two first movable clamping blocks (33) of each clamping block assembly are respectively slidably engaged on the two first guide rails (311), and in each clamping block assembly, the recesses of the first movable clamping blocks (33) are all arranged in a direction away from the center of the base plate (31).

6. The bidirectional automated production line structure for removing pins from metal ingots according to claim 5, characterized in that: The base plate (31) is also provided with a number of second guide rails (312); the second guide rails (312) are arranged along the width direction of the base plate (31) and extend towards the center of the base plate (31); the number of second guide rails (312) are arranged in pairs along the length direction of the base plate (31) on the front and rear sides of the base plate (31); the clamping block assembly also includes a number of second movable clamping blocks (34); the second movable clamping blocks (34) correspond one-to-one with the second guide rails (312) and slide on the corresponding second guide rails (312).

7. The bidirectional automated production line structure for removing pins from metal ingots according to claim 1, characterized in that: The pin release device (4) has a pin release channel (41) through which the clamping mechanism (3) passes.

8. The bidirectional automated production line structure for removing pins from metal ingots according to claim 1, characterized in that: The transfer device (2) is a crane.

9. A method for a bidirectional production line for removing pins from metal ingots, characterized in that, The bidirectional production line structure for removing pins from metal ingots as described in any one of claims 1 to 8 includes the following steps: when a metal ingot on one production line (1) is depinned by a pin removal device (4) and transported to the transfer area of ​​the production line (1) by a clamping mechanism (3), the transfer device (2) first lifts away the metal ingot on the clamping mechanism (3) and then lifts a metal ingot to be depinned into the clamping mechanism (3); then, the clamping mechanism (3) containing the new metal ingot to be depinned is transferred to the clamping area of ​​another production line (1).

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