Rail plate reinforcing bar cutting machine

Abstract

The utility model relates to a kind of cutting-off machine for track slab reinforcing bar.It includes: punch press assembly, punch;Towing wheel group, including two tow rollers;Cutting-off assembly, including lower knife, upper knife and first guide rod, and first reset spring is equipped between upper knife and lower knife;Pad block assembly, including base, second guide rod, lifting seat and pad block, second reset spring is equipped on lifting seat, third reset spring is equipped on the second guide rod;Length control mechanism, including guide seat, slide and lever, and upper protruding column is equipped on the slide;Reinforcing bar support platform.The utility model can be automatically cut off to multiple reinforcing bars simultaneously, and cutting-off action is coherent, full automation, with higher production efficiency, and equipment is fixed length cutting-off by pure mechanism structure, not prone to failure, and failure is easy to troubleshoot.

Description

Technical Field

[0001] This utility model relates to a cutting machine, and more particularly to a cutting machine for steel bars in track slabs. Background Technology

[0002] A track slab is a new type of rail substructure with a slab-like structure used to support and fix steel rails, distributing the load transmitted by the train through the rails to the base beneath the slab. Depending on the casting site, track slabs are classified as precast or cast-in-place. The main structure of a track slab consists of cement and reinforcing steel, with the internal reinforcing steel distributed in a cage-like structure. Therefore, the production of track slabs requires a large number of steel bar segments of various sizes. The production process of steel bar segments generally involves straightening and cutting. The straightening process uses a straightening machine to straighten the originally coiled and wound steel bars into a straight state, and then cuts the steel bars using a cutting device. To improve the cutting efficiency of steel bars, the steel bar manufacturing industry needs to develop a fully automatic steel bar cutting machine capable of cutting into multiple sizes. Summary of the Invention

[0003] This utility model provides a cutting machine for steel bars in track slabs; it solves the problem of low production efficiency caused by low automation of existing steel bar cutting equipment.

[0004] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a cutting machine for track slab reinforcement, comprising: a punch assembly, on which a punch that moves up and down is provided;

[0005] The traction wheel assembly is located on the front side of the punch press assembly and includes two traction rollers, one upper and one lower. The two traction rollers are provided with several annular grooves that face each other.

[0006] The cutting assembly is located below the punch and includes a relatively fixed lower blade, an upper blade that floats up and down, and a first guide rod. The first guide rod is vertically fixed relative to the lower blade, and the upper blade is slidably engaged relative to the first guide rod. A first return spring is provided between the upper blade and the lower blade.

[0007] The pad assembly is disposed between the punch and the cutting assembly. It includes a base fixed relative to the lower blade, a second guide rod fixed vertically on the base, a lifting seat slidably disposed on the second guide rod, and a pad block slidably disposed on the lifting seat. The lifting seat is provided with a second return spring that pushes the pad block to slide backward, and the second guide rod is sleeved with a third return spring that can push the lifting seat to return upward.

[0008] The length control mechanism is located at the rear of the pad assembly and includes a relatively fixed guide seat, a slide rod that is horizontally slidable on the guide seat, and a lever that is rotatably mounted on the guide seat. The slide rod has an upper protrusion, and the upper end of the lever has a slot that engages with the upper protrusion.

[0009] The rebar support platform is located below the length control mechanism and behind the cutting assembly. It includes several relatively fixed support rods, several flip plates hinged to the support rods, and a torsion spring that pushes the flip plates to flip upward and reset. The flip plates can abut against one side of the support rods when reset upward, thereby forming several horizontal receiving grooves that can support the rebar segments.

[0010] The cutting principle of this utility model is as follows: Several straightened steel bars pass through the space between two traction rollers on the traction wheel assembly and are conveyed to the rear of the equipment. When the lever on the length control mechanism is in an unloaded state, the front end of the slide rod abuts against the pad on the pad assembly. Under the action of the second return spring, the pad stops at the rear end of the lifting seat. The punch on the punch assembly moves up and down at a fixed frequency. The lowest position of the punch is higher than the upper end face of the upper blade, which is in a high position. Therefore, the punch assembly is in an idling state at this time, and the upper blade is also in a high position under the action of the first return spring. The steel bars can pass directly through the gap between the upper and lower blades, slide into the steel bar support platform, and gradually slide backward under the guidance of the receiving groove. The flipping plate... The torsion spring can be used to support the reinforcing bar. As the reinforcing bar is continuously fed backward, it will start to contact the lower end of the lever and push the lever to flip. The sliding rod slides forward synchronously, pushing the pad block forward. At this time, the bottom surface of the pad block is not lower than the upper surface of the upper blade, while the high position of the punch is higher than the top surface of the pad block. Therefore, when the punch rises to the high position, the pad block can be pushed directly under the punch. Then, when the punch descends, it will collide with the pad block. The pad block and the lifting seat descend synchronously, which in turn pushes the upper blade downward, ultimately achieving the upper blade to perform a shearing action on the reinforcing bar. Under the downward pressure of the upper blade, the cut reinforcing bar segment is passively flipped downward by the flipping plate, causing the reinforcing bar segment to slide off. Then, the entire device returns to the initial state under the action of the return spring.

[0011] Furthermore, a sleeve is fitted around the front end of the slide rod, and a fourth return spring is disposed inside the sleeve, abutting against the front end of the slide rod. The elastic coefficient of the fourth return spring is greater than that of the second return spring. When the slide rod is triggered to slide forward, if the height of the punch is too low and the pad cannot slide under it, the fourth return spring will undergo adaptive deformation to prevent the relevant components from being squeezed and deformed. The elastic coefficient of the fourth return spring is greater than that of the second return spring, which ensures that the sleeve can push the pad to slide forward while the fourth return spring is in an uncompressed state.

[0012] Furthermore, the slide rod has several upper protruding posts of equal height, and the guide seat has correspondingly a number of lower protruding posts with the same spacing. The lever is rotatably connected to the lower protruding posts. The lever is mounted on different lower protruding posts, corresponding to different rebar cutting lengths. Thus, this invention has the effect of cutting rebars of different lengths.

[0013] Therefore, this utility model has the following characteristics compared with the prior art: 1. This utility model can automatically cut multiple steel bars at the same time, with continuous cutting action and full automation, resulting in high production efficiency. Moreover, the equipment achieves fixed-length cutting through a pure mechanical structure, making it less prone to failure and easier to troubleshoot; 2. By adjusting the position of the lever assembly, the corresponding steel bar cutting lengths are different, thus this utility model has the effect of cutting steel bars of different lengths. Attached Figure Description

[0014] Appendix Figure 1 This is a schematic diagram of the structure of this utility model when the punch is in a high position and the lever is not triggered;

[0015] Appendix Figure 2 This is a schematic diagram of the structure of this utility model when the punch is in a low position and the lever is not triggered;

[0016] Appendix Figure 3 This is a schematic diagram of the structure of this utility model when the punch is in a high position and the lever is triggered;

[0017] Appendix Figure 4 This is a schematic diagram of the structure of this utility model when the punch is in a low position and the lever is triggered;

[0018] Appendix Figure 5 This is a schematic diagram of the cutting component;

[0019] Appendix Figure 6 These are schematic diagrams showing two states of the steel reinforcement support platform;

[0020] Appendix Figure 7 This is a schematic diagram of the traction wheel assembly. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0022] In the description of this utility model, 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", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Example 1: See Figure 1 A cutting machine for steel bars in track slabs includes: a punch assembly 100, on which a punch 110 that moves up and down is provided;

[0024] See Figure 7 The traction wheel assembly 200 is located on the front side of the punch press assembly and includes two traction rollers 210, one above the other. The two traction rollers are provided with three annular grooves 220 that face each other vertically.

[0025] See Figure 5 The cutting assembly 300 is located below the punch and includes a relatively fixed lower blade 310, an upper blade 320 that floats up and down, and a first guide rod 330. The first guide rod is vertically fixed relative to the lower blade, and a first limiting block 331 is fixed at the upper end of the first guide rod. The upper blade slides relative to the first guide rod. A first reset spring 340 is provided between the upper blade and the lower blade, and an upper blade pad 350 is provided at the upper end of the upper blade.

[0026] The pad assembly 400 is disposed between the punch and the cutting assembly. It includes a base 410 fixed relative to the lower blade, a second guide rod 420 vertically fixed on the base, a lifting seat 430 slidably disposed on the second guide rod, and a pad 440 slidably disposed on the lifting seat. The lifting seat is provided with a second return spring 450 that pushes the pad to slide backward. The second guide rod is fitted with a third return spring 460 that can push the lifting seat to return upward. A second limit block 421 is fixed at the upper end of the second guide rod.

[0027] The length control mechanism 500 is located behind the pad assembly. It includes a relatively fixed guide seat 510, a slide rod 520 that slides horizontally on the guide seat, and a lever 530 that rotates on the guide seat. The slide rod has an upper protrusion 521, and the upper end of the lever has a slot 531 that engages with the upper protrusion. The slot is a long, closed structure. When the end of the slot abuts against the upper protrusion, it creates a limiting effect, thereby limiting the rotation angle of the lever. The rotation angle of the lever is generally limited to within 120°.

[0028] See Figure 6The rebar support platform 600 is located below the length control mechanism and behind the cutting assembly. It includes three relatively fixed support rods 610, three hinged flip plates 620 connected to the support rods, and a torsion spring 640 that pushes the flip plates to flip upward and reset. The flip plates can abut against one side of the support rods when reset upward, thus forming three horizontal receiving grooves 630 that can support the rebar segments.

[0029] See Figures 1 to 4 The cutting principle of this embodiment is as follows: the straightened steel bar 10 passes between the two traction rollers on the traction wheel assembly and is conveyed to the rear of the equipment. When the lever on the length control mechanism is in an unloaded state, the front end of the slide rod abuts against the pad on the pad assembly, and the pad stops at the rear end of the lifting seat under the action of the second return spring. The punch on the punch assembly moves up and down at a fixed frequency, and the lowest position of the punch is higher than the upper blade pad at the high position. Therefore, the punch assembly is in an idling state at this time, and the upper blade is also at the high position under the action of the first return spring. The steel bar can pass directly through the gap between the upper and lower blades, slide into the steel bar support platform, and gradually slide backward under the guidance of the receiving groove. The flip plate is under the torsion spring Under the action of the lever, it can be used to support the steel bars. As the steel bars are continuously fed backward, they will start to contact the lower end of the lever and push the lever to flip. The sliding rod slides forward in sync, pushing the pad block forward. At this time, the bottom surface of the pad block is not lower than the upper blade pad block of the upper blade, while the high position of the punch is higher than the top surface of the pad block. Therefore, when the punch rises to the high position, the pad block can be pushed directly under the punch. Then, when the punch descends, it will collide with the pad block. The pad block and the lifting seat descend in sync, thus pushing the upper blade downward. Finally, the upper blade will perform a shearing action on the steel bar. Under the downward pressure of the upper blade, the cut steel bar segment is passively flipped downward by the flipping plate, causing the steel bar segment to slide off. Then, the entire device returns to the initial state under the action of the return spring.

[0030] See Figure 1 A sleeve 522 is fitted onto the front end of the slide rod, and a fourth return spring 523 is installed inside the sleeve, abutting against the front end of the slide rod. The elastic coefficient of the fourth return spring is greater than that of the second return spring. When the slide rod is triggered to slide forward, if the height of the punch is too low and the pad cannot slide under it, the fourth return spring will undergo adaptive deformation to prevent the relevant components from being squeezed and deformed. The elastic coefficient of the fourth return spring is greater than that of the second return spring, which ensures that the sleeve can push the pad forward while the fourth return spring is in an uncompressed state.

[0031] See Figure 1 The slide rod has several upper protruding posts of equal height, and the guide seat has corresponding lower protruding posts 511 of the same number and spacing. The lever is rotatably connected to the lower protruding posts. The lever is assembled on different lower protruding posts, corresponding to different steel bar cutting lengths. Thus, this embodiment has the effect of cutting steel bars of different lengths.

[0032] See Figure 5 and Figure 6 The upper blade has four downward-extending extension plates 321. One side wall of the extension plate is coplanar with the shearing surface of the upper blade, and the extension plate and the shearing surface of the lower blade are always in contact. The extension plates must avoid the shearing parts of the reinforcing bars.

[0033] This invention can be modified in many ways, as will be apparent to those skilled in the art, and such modifications are not considered to depart from the scope of this invention. All such modifications that are obvious to those skilled in the art are included within the scope of these claims.

Claims

1. A cutting machine for reinforcing steel bars in track slabs, characterized in that, include: A punch press assembly, on which a punch that moves up and down is mounted; The traction wheel assembly is located on the front side of the punch press assembly and includes upper and lower traction rollers. The cutting assembly is located below the punch and includes a relatively fixed lower blade, an upper blade that floats up and down, and a first guide rod. The first guide rod is vertically fixed relative to the lower blade, and the upper blade is slidably engaged relative to the first guide rod. A first return spring is provided between the upper blade and the lower blade. The pad assembly is disposed between the punch and the cutting assembly. It includes a base fixed relative to the lower blade, a second guide rod fixed vertically on the base, a lifting seat slidably disposed on the second guide rod, and a pad block slidably disposed on the lifting seat. The lifting seat is provided with a second return spring that pushes the pad block to slide backward, and the second guide rod is sleeved with a third return spring that can push the lifting seat to return upward. The length control mechanism is located at the rear of the pad assembly and includes a relatively fixed guide seat, a slide rod that is horizontally slidable on the guide seat, and a lever that is rotatably mounted on the guide seat. The slide rod has an upper protrusion, and the upper end of the lever has a slot that engages with the upper protrusion. The rebar support platform is located below the length control mechanism and behind the cutting assembly. It includes several relatively fixed support rods, several flip plates hinged to the support rods, and a torsion spring that pushes the flip plates to flip upward and reset. The flip plates can abut against one side of the support rods when reset upward, thereby forming several horizontal receiving grooves that can support the rebar segments.

2. The track slab reinforcement cutting machine according to claim 1, characterized in that: The front end of the slide rod is fitted with a sleeve, and a fourth return spring is provided inside the sleeve, which abuts against the front end of the slide rod. The elastic coefficient of the fourth return spring is greater than that of the second return spring.

3. The track slab reinforcement cutting machine according to claim 2, characterized in that: The slide bar has several upper protrusions of equal height, and the guide seat has corresponding lower protrusions of the same number and spacing. The lever is rotatably connected to the lower protrusions.

4. The track slab reinforcement cutting machine according to claim 1, characterized in that: The upper blade is provided with several downwardly extending extension pieces, one side wall of which is coplanar with the cutting surface of the upper blade, and the extension pieces are always in contact with the cutting surface of the lower blade.

5. The track slab reinforcement cutting machine according to claim 1, characterized in that: The two traction rollers are provided with several annular grooves that are directly opposite each other.

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