Bar branching and hole pattern shearing method and device

Abstract

The invention relates to the technical field of ferrous metallurgy, and discloses a bar branching and hole pattern shearing method and device.The bar branching and hole pattern shearing device comprises a separation cover plate device, a roller, a common roller cover plate, a separation partition plate, a pre-shearing separation positioning device and a forming shear blade; the left side of the top of the first cover plate body is fixedly connected with a plurality of second separation ridges, second separation ridge notches are formed in the left sides of the tops of the second separation ridges, the right side of the top of the first cover plate body is fixedly connected with a plurality of first separation ridges, and first separation ridge notches are formed in the right sides of the tops of the first separation ridges. A separation groove is formed between the first separation edge and the second separation edge which are close to each other. Through the isolation effect of the horn-mouth-shaped channel dividing groove and the channel dividing partition plate of the channel dividing cover plate device, the bar sets are dispersed into independent channels to be conveyed, and relative movement and friction between bars are avoided. In this way, surface scratches are reduced, and meanwhile the turning amount for eliminating the scratches is reduced.

Description

Technical Field

[0001] This invention relates to the field of iron and steel metallurgy technology, specifically to a method and apparatus for branching and shearing bar stock. Background Technology

[0002] In the steel metallurgy industry, bar stock is an important industrial raw material, widely used in various industries such as construction and machinery manufacturing. Among them, industrial bar stock needs to be processed into precision parts such as shafts, which requires extremely high surface quality and cut regularity. The surface must avoid deep scratches to prevent stress concentration or stress corrosion during subsequent processing; the cut must maintain a cylindrical shape to avoid extra waste during machining due to flattening or bending.

[0003] Currently, existing bar production equipment outputs bars from the cooling bed in a clustered state. During roller conveying, relative sliding or even stacking of the bars easily occurs. This relative motion not only directly causes surface friction scratches but also exacerbates the scratch depth due to the formation of abrasive particles from the shedding of surface oxide scale. After such scratched bars are delivered to customers, the scratches need to be removed by turning, resulting in a reduction in steel diameter and a significant decrease in material utilization. This is particularly pronounced for high-precision industrial bars. Therefore, a method and device for bar branching and die shearing are proposed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a method and apparatus for branching and die shearing of bar stock, which solves the problem that the bar stock output from the cooling bed of the bar stock production device is mostly in a multi-bar aggregated state, and that relative sliding or even stacking of the bar stock is likely to occur between the bar stock during the roller conveyor process.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a method for branching and shearing bar stock, comprising the following steps: Step 1: The bar stock from the cooling bed is laid flat on the rollers. The bar stock moves forward under the drive of the rollers to the flared position of the dividing cover device. The rollers stop and the head of the bar stock is aligned with the flared position of the dividing cover device manually or mechanically. Then the rollers continue to start so that the bar stock continues to move forward. The bar stock is separated by the dividing edge of the dividing cover device and enters the flared position of the dividing cover device, thus achieving branching forward. Step 2: The bar stock continues to move forward under the action of the rollers. The bar stock is separated by the partition plate so that it will not rejoin when running between the sizing cover device and the pre-shear sizing positioning device. Step 3: Under the action of the rollers, the bar stock group moves forward into the pre-sliding positioning device and finally enters the slot of the forming shear blade, extending a certain length. Step 4: The forming shear blades operate to cut the rod assembly. During the cutting process, the rods will not move due to the restriction of the pre-cutting positioning device. At the same time, the groove of the forming shear blades restricts the cutting point from being flattened. Step 5: The bar stock continues to move forward a certain length under the action of the rollers, and the forming shear blades continue to cut, repeating this process. Step Six: When it is necessary to cut different specifications or change the number of pieces cut at one time, simply replace the channel cover plate device with different number of slots, the pre-cutting channel positioning device, and the forming shear blade to achieve forming and cutting of different varieties and specifications.

[0006] A bar branching and die shearing device includes a sizing cover plate device, a roller, a regular roller cover plate, a sizing partition, a pre-shearing sizing positioning device, and a forming shear blade. The sizing cover plate device includes a cover plate body 1. Multiple sizing ridges 2 are fixedly connected to the top left side of the cover plate body 1. A sizing ridge notch 2 is opened on the top left side of each sizing ridge 2. Multiple sizing ridges 1 are fixedly connected to the top right side of the cover plate body 1. A sizing ridge notch 1 is opened on the top right side of each sizing ridge 1. A sizing groove is provided between two adjacent sizing ridges 1 and sizing ridges 2.

[0007] Preferably, the left and right end faces of the second dividing edge and the first dividing edge are different, the dividing groove is trumpet-shaped, and a dividing partition is engaged between the first dividing edge notch and the second dividing edge notch.

[0008] Preferably, the pre-shearing lane positioning device includes a cover plate body two, a guide rib is fixedly connected to the top left side of the cover plate body two, a guide rib notch is opened on the top left side of the guide rib, a lane guiding groove is provided between two adjacent guide ribs, and a pre-shearing positioning groove plate is fixedly connected to the top right side of the cover plate body two, and a plurality of positioning grooves are opened on the top of the pre-shearing positioning groove plate.

[0009] Preferably, a partition plate is engaged between the guide ridge notch and the partition ridge notch, the number of partition guide grooves is equal to the number of positioning grooves, the partition guide groove is funnel-shaped, the front section of the positioning groove is a straight section, and the rear section of the positioning groove is funnel-shaped.

[0010] Preferably, the shaped scissor blade includes a scissor body, the surface of which has a plurality of mounting holes, and the top of which has a plurality of scissor grooves, with a plurality of scissor blades fixedly connected to the inner wall of the scissor grooves.

[0011] Preferably, the number of shear grooves is equal to the number of dividing grooves and guide ridge notches. The shear groove is composed of a straight section of the shear groove opening and a flared section of the shear groove opening. The cross-section of the shear groove and the straight section of the shear groove opening is V-shaped, and the bottom is arc-shaped.

[0012] Preferably, the top of the roller is provided with a common roller cover plate, and the roller passes through the bottom of the cover plate body 2 and the bottom of the cover plate body 1 and is rotatably connected to the bottom of the cover plate body 1 and the cover plate body 2.

[0013] Preferably, the lane divider cover device further includes a cover body three, the top of the cover body three is fixedly connected to a lane divider ridge three, and a lane divider ridge notch three is opened on the rear side of the top of the lane divider ridge three.

[0014] Preferably, the side of the third lane dividing edge away from the third lane dividing edge notch is triangular, and a lane dividing partition is fixedly connected between the third lane dividing edge and the third lane dividing edge notch by a connector.

[0015] This invention provides a method and apparatus for branching and shearing bar stock. It offers the following advantages: 1. This invention utilizes the funnel-shaped channel grooves and partitions of the channel cover device to disperse the bar stock into independent transport channels, avoiding relative movement and friction between the bars. This not only reduces surface scratches but also lowers the risk of stress concentration and stress corrosion caused by scratches during subsequent machining. Simultaneously, it reduces the amount of turning work required to remove scratches, significantly improving the surface quality and material utilization rate of industrial bars.

[0016] 2. This invention utilizes a perforated forming shear blade, whose shearing groove engages with the positioning groove of the pre-cutting positioning device to create a rigid constraint on the bar stock during shearing: the pre-cutting positioning groove restricts the horizontal movement of the bar stock, preventing oblique cuts; the perforated shearing groove restricts extrusion deformation, ensuring the cut remains cylindrical. This design significantly reduces the amount of deformation of the cutting head, decreasing the amount of material removed in subsequent processing and resulting in substantial steel savings.

[0017] 3. This invention guides the bar stock into an independent channel through the dividing edge of the dividing cover plate. After precise positioning via the flared opening and straight section of the pre-cutting dividing positioning device, it finally aligns with the groove of the forming shear blade. Throughout the process, the bar stock is stably conveyed under constraint, with no horizontal displacement during cutting, ensuring the accuracy of the fixed length and the perpendicularity of the cut, meeting the stringent dimensional accuracy requirements of industrial bar stock. Attached Figure Description

[0018] Figure 1 This is a first-view perspective perspective view of the present invention; Figure 2 This is a schematic diagram of the lane divider cover device of the present invention; Figure 3 This is a schematic diagram of the pre-shearing lane positioning device of the present invention; Figure 4 This is a schematic diagram of the molded scissor blade of the present invention; Figure 5This is a schematic diagram of the shear blade groove of the present invention; Figure 6 This is a second-view perspective perspective view of the present invention; Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0019] The components include: 1. Separating cover plate device; 101. Cover plate body one; 102. Separating edge one; 103. Separating edge notch one; 104. Separating edge two; 105. Separating edge notch two; 106. Separating groove; 2. Roller; 3. Ordinary roller cover plate; 4. Separating partition plate; 5. Pre-shearing separating positioning device; 501. Cover plate body two; 502. Guide edge; 503. Guide edge notch; 504. Pre-shearing positioning groove plate; 505. Positioning groove; 507. Separating guide groove; 6. Forming shear blade; 601. Shear blade body; 602. Mounting hole; 603. Shear blade groove; 604. Straight section of shear blade groove opening; 605. Trumpet section of shear blade groove opening; 606. Shear blade; 701. Cover plate body three; 702. Separating edge three; 703. Separating edge notch three. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example: Please see the appendix Figure 1 -Appendix Figure 7 This invention provides a method for branching and shearing a bar, comprising the following steps: Step 1: The bar stock from the cooling bed is laid flat on roller 2. When the bar stock moves forward to the flared position of the dividing cover device 1 driven by roller 2, roller 2 stops. The head of the bar stock is aligned with the flared position of the dividing cover device 1 by manual or mechanical means. Then roller 2 continues to move the bar stock forward. The bar stock is separated by the dividing edge of the dividing cover device 1 and enters the flared position of the dividing cover device 1, realizing branching forward. Step 2: The bar stock continues to move forward under the action of roller 2. The bar stock is separated by the partition plate so that it does not rejoin when running between the lane cover device 1 and (5); Step 3: Under the action of roller 2, the bar stock group moves forward into the pre-sliding positioning device 5, and finally enters the slot of the forming shear blade 6, extending a certain length. Step 4: The forming shear blades operate to cut the rod assembly. When the forming shear blades 6 are cutting, the rods will not move due to the restriction of the pre-cutting positioning device 5. At the same time, the groove of the forming shear blades 6 restricts the cutting point so that it will not be flattened during cutting. Step 5: The bar stock continues to move forward a certain length under the action of roller 2, and the forming shear blade 6 continues to cut, and this process is repeated; Step Six: When it is necessary to cut different specifications or change the number of pieces cut at one time, simply replace the channel cover plate device 1 with different numbers of slots, the pre-cutting channel positioning device 5, and the forming shear blade 6 to achieve forming and cutting of different varieties and specifications.

[0022] Please see the appendix Figure 1 -Appendix Figure 7 This invention also provides a bar branching and die shearing device, including a channel cover plate device 1, a roller 2, a common roller cover plate 3, a channel partition 4, a pre-shear channel positioning device 5, and a forming shear blade 6. The channel cover plate device 1 includes a cover plate body 101, which serves as the basic structure of the channel cover plate device 1 and provides installation support for other components. A plurality of channel ridges 104 are fixedly connected to the top left side of the cover plate body 101. The channel ridges 104 cooperate with the channel ridges 102 to form channel grooves 106, which serve to separate the bars. A channel ridge notch 105 is opened on the top left side of the channel ridge 104. 105 is used to install the partition plate 4 to ensure the stable connection of the partition plate 4. Multiple partition ridges 102 are fixedly connected to the top right side of the cover plate body 101. The partition ridges 102 and 104 work together to guide and separate the bars. A partition notch 103 is opened on the top right side of the partition ridge 102. The partition notch 103 is also used to install the partition plate 4 to ensure that the partition plate 4 can stably isolate the bars. A partition groove 106 is provided between two adjacent partition ridges 102 and partition ridges 104. The partition groove 106 provides an independent conveying channel for the bars to prevent the bars from rubbing and colliding with each other.

[0023] The left and right end faces of the second dividing edge 104 and the first dividing edge 102 are different. The difference in end faces makes the dividing groove 106 formed between two adjacent dividing edges 102 and the second dividing edge 104 funnel-shaped. The funnel-shaped dividing groove 106 facilitates the gradual dispersion of the bar group from the initial aggregation state and its entry into its respective dividing groove 106, playing a good guiding role and ensuring that the bar can smoothly enter the dividing groove 106. A dividing partition 4 is snapped between the first dividing edge notch 103 and the second dividing edge notch 105. The dividing partition 4 is installed by snapping, which not only ensures the stability of the connection, but also facilitates installation and disassembly. The dividing partition 4 can further isolate the bar in different dividing grooves 106 and prevent the bar from interfering with each other or merging during the conveying process.

[0024] The pre-shearing channel positioning device 5 includes a cover plate body 2 501. The cover plate body 2 501 provides an installation base for other components of the pre-shearing channel positioning device 5, ensuring the positional stability of each component. A guide rib 502 is fixedly connected to the top left side of the cover plate body 2 501. The guide rib 502 guides the bar stock into the guide rib notch 503, ensuring that the bar stock can accurately enter the corresponding channel. The guide rib notch 503 is provided on the top left side of the guide rib 502, providing a conveying path for the bar stock and ensuring that the bar stock remains stable before entering the pre-shearing positioning slot plate 504. A guide groove 507 is provided between two adjacent guide edges 502 in a fixed conveying direction. The guide groove 507 is used to install the guide plate 4 to further enhance the isolation and guidance of the bar. A pre-shear positioning groove plate 504 is fixedly connected to the top right side of the cover plate body 501. The positioning groove 505 on the pre-shear positioning groove plate 504 can accurately position the bar to prepare for subsequent shearing. Multiple positioning grooves 505 are opened on the top of the pre-shear positioning groove plate 504. The positioning grooves 505 can limit the position of the bar and prevent the bar from moving during the shearing process, thus ensuring the shearing accuracy.

[0025] A channel divider 4 is engaged between the guide notch 503 and the channel notch 103. This connection method of the channel divider 4 can effectively isolate the bars between the channel cover device 1 and the pre-shear channel positioning device 5, preventing the bars from mixing and colliding during the conveying process. The number of channel guide grooves 507 and the number of positioning grooves 505 are equal, ensuring that each positioning groove 505 corresponds to one bar, ensuring the accuracy of positioning. The channel guide groove 507 is trumpet-shaped. The trumpet-shaped structure facilitates the smooth entry of the bar from the guide notch 503 into the positioning groove 505. The front section of the positioning groove 505 is a straight section, which can stably position the bar and prevent the bar from shaking during shearing. The rear section of the positioning groove 505 is trumpet-shaped. The trumpet-shaped structure facilitates the smooth entry of the bar into the straight section of the positioning groove 505, improving the smoothness of the bar entering the positioning groove 505.

[0026] The forming shear blade 6 includes a shear blade body 601, which is the main structure of the forming shear blade 6 and provides mounting support for the shear blades 606 and other components. The shear blade body 601 has multiple mounting holes 602 on its surface, which are used to install the forming shear blade 6 onto the corresponding equipment to ensure that the forming shear blade 6 is stable and reliable during the shearing process. The top of the shear blade body 601 has multiple shear blade grooves 603, which can accommodate the bar and play a role in positioning and constraining the bar to prevent the bar from shifting during shearing. Multiple shear blades 606 are fixedly connected to the inner wall of the shear blade grooves 603. The shear blades 606 are the key components for realizing the shearing of the bar, and the bar is cut by the action of the shear blades 606.

[0027] The number of shear grooves 603 is equal to the number of channel grooves 106 and guide notches 503. This matching quantity ensures that each bar conveyed by the channel grooves 106 and guide notches 503 can accurately enter the corresponding shear groove 603, achieving precise shearing. The shear groove 603 consists of a straight section 604 and a flared section 605. The flared section 605 facilitates the smooth entry of the bar into the shear groove 603, while the straight section 604 provides stable constraint to the bar, ensuring its stable position during shearing. The cross-sections of the shear grooves 603 and the straight section 604 are V-shaped with a rounded bottom. The V-shape accommodates bars of different specifications and provides good positioning, while the rounded bottom reduces damage to the bar surface and better constrains the bar during shearing, preventing it from being flattened.

[0028] The top of the roller 2 is equipped with a common roller cover plate 3, which can protect the roller 2 and the bar stock to a certain extent, prevent external debris from entering the running area of ​​the roller 2, and also prevent the bar stock from falling during the conveying process. The roller 2 passes through the bottom of the cover plate body 2 501 and the cover plate body 1 101 and is rotatably connected to the bottom of the cover plate body 1 101 and the cover plate body 2 501, so that the roller 2 can stably drive the bar stock to be conveyed on the dividing cover plate device 1 and the pre-shear dividing positioning device 5, ensuring the continuity and stability of the bar stock conveying.

[0029] The dividing cover plate device 1 also includes a cover plate body 3 701. The cover plate body 3 701 is another main structural form of the dividing cover plate device 1, providing installation support for the dividing ridge 3 702. The top of the cover plate body 3 701 is fixedly connected to the dividing ridge 3 702. The dividing ridge 3 702 is an integral unit. The dividing ridge 3 702 plays the role of separating and guiding the bar material. It cooperates with other dividing ridges to form a dividing groove to ensure the independent conveying of the bar material. The top rear side of the dividing ridge 3 702 is provided with a dividing ridge notch 3 703. The dividing ridge notch 3 703 is used for the dividing partition 4 to ensure that the dividing partition 4 can stably isolate the bar material and prevent the bar material from merging together during the conveying process.

[0030] The side of the dividing edge 3 702 away from the dividing edge notch 3 703 is triangular. The triangular structure allows the bar to move up and down appropriately when there is some deformation in the head or middle of the bar in the bar group, thereby preventing the bar from getting stuck in the dividing edge and ensuring the smooth transport of the bar. The dividing edge 3 702 and the dividing edge notch 3 703 are fixedly connected by a connecting piece. The dividing edge partition 4 is fixed by the connecting piece, which can further improve the installation stability of the dividing edge partition 4 and ensure that it can reliably isolate the bar during the bar transport process and avoid mutual interference between the bars.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for branching and shearing a bar, characterized in that, The following steps are included: Step 1: The bar stock from the cooling bed is laid flat on the roller (2). When the bar stock moves forward to the flared position of the dividing cover device (1) driven by the roller (2), the roller (2) stops. The head of the bar stock is aligned with the flared position of the dividing cover device (1) manually or mechanically. Then the roller (2) continues to start so that the bar stock continues to move forward. The bar stock is separated by the dividing edge of the dividing cover device (1) and enters the flared position of the dividing cover device (1) to achieve branching forward. Step 2: The bar stock continues to move forward under the action of the roller (2). The bar stock is separated by the partition plate so that it does not rejoin when running between the lane cover plate device (1) and the pre-shear lane positioning device (5). Step 3: Under the action of the roller (2), the bar stock moves forward into the pre-sliding positioning device (5), and finally enters the slot of the forming shear blade (6) and extends a certain length. Step 4: The forming shear blades move to cut the rod assembly. When the forming shear blades (6) are cutting, the rod will not move due to the restriction of the pre-cutting positioning device (5). At the same time, the groove of the forming shear blades (6) restricts the cutting point from being flattened. Step 5: The bar stock continues to move forward a certain length under the action of the roller (2), and the forming shear blade (6) continues to cut, and so on; Step 6: When it is necessary to cut different specifications or change the number of pieces cut at one time, simply replace the channel cover plate device (1) with different number of slots, the pre-cut channel positioning device (5), and the forming shear blade (6) to achieve forming and cutting of different varieties and specifications.

2. A bar branching and die-cutting device, according to claim 1, comprising a branching cover plate device (1), a roller (2), a common roller cover plate (3), a branching partition plate (4), a pre-cutting branching positioning device (5), and a forming shear blade (6), characterized in that, The lane divider cover device (1) includes a cover body (101), a plurality of lane divider ribs (104) are fixedly connected to the top left side of the cover body (101), a lane divider notch (105) is opened on the top left side of the lane divider ribs (104), a plurality of lane divider ribs (102) are fixedly connected to the top right side of the cover body (101), a lane divider notch (103) is opened on the top right side of the lane divider ribs (102), and a lane divider groove (106) is provided between two adjacent lane divider ribs (102) and lane divider ribs (104).

3. The bar branching and hole-type shearing device according to claim 2, characterized in that, The left and right end faces of the second dividing edge (104) and the first dividing edge (102) are different. The dividing groove (106) is trumpet-shaped. A dividing partition (4) is snapped between the first dividing edge notch (103) and the second dividing edge notch (105).

4. The bar branching and hole-type shearing device according to claim 3, characterized in that, The pre-shearing lane positioning device (5) includes a cover plate body two (501), a guide rib (502) is fixedly connected to the top left side of the cover plate body two (501), a guide rib notch (503) is opened on the top left side of the guide rib (502), a lane guiding groove (507) is provided between two adjacent guide ribs (502), a pre-shearing positioning groove plate (504) is fixedly connected to the top right side of the cover plate body two (501), and a plurality of positioning grooves (505) are opened on the top of the pre-shearing positioning groove plate (504).

5. The bar branching and hole-type shearing device according to claim 4, characterized in that, A lane divider (4) is engaged between the guide ridge notch (503) and the lane dividing ridge notch (103). The number of lane dividing guide grooves (507) is equal to the number of positioning grooves (505). The lane dividing guide grooves (507) are trumpet-shaped. The front section of the positioning groove (505) is a straight section, and the rear section of the positioning groove (505) is trumpet-shaped.

6. The bar branching and hole-type shearing device according to claim 5, characterized in that, The shaped scissor blade (6) includes a scissor blade body (601), the surface of the scissor blade body (601) is provided with a plurality of mounting holes (602), the top of the scissor blade body (601) is provided with a plurality of scissor blade grooves (603), and a plurality of scissor blades (606) are fixedly connected to the inner wall of the scissor blade grooves (603).

7. The bar branching and hole-type shearing device according to claim 6, characterized in that, The number of shear grooves (603) is equal to the number of the dividing grooves (106) and the guide notch (503). The shear groove (603) is composed of a straight section (604) of the shear groove opening and a flared section (605) of the shear groove opening. The cross-section of the shear groove (603) and the straight section (604) of the shear groove opening is V-shaped and the bottom is arc-shaped.

8. The bar branching and hole-type shearing device according to claim 4, characterized in that, The roller (2) is provided with a common roller cover plate (3) at the top. The roller (2) passes through the bottom of the cover plate body two (501) and the cover plate body one (101) and is rotatably connected to the bottom of the cover plate body one (101) and the cover plate body two (501).

9. A bar branching device, a bar branching and die-cutting device according to any one of claims 1-8, characterized in that, The lane divider cover device (1) also includes a cover body three (701), the top of the cover body three (701) is fixedly connected to a lane divider ridge three (702), and a lane divider ridge notch three (703) is opened on the rear side of the top of the lane divider ridge three (702).

10. A bar branching device according to claim 9, characterized in that, The side of the third lane divider (702) away from the third lane divider notch (703) is triangular, and the third lane divider (702) and the third lane divider notch (703) are fixedly connected by a connector with a lane divider plate (4).

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