A floor slab prefabricated piece distribution rib steel bar cutting machine

Abstract

The application relates to the technical field of steel bar cutting equipment, and discloses a steel bar cutting machine for floor prefabricated part distributed steel bars, which comprises a vehicle body, a box body and a positioning seat are arranged on the top of the vehicle body, a reciprocating push rod is movably arranged in the box body, the reciprocating push rod is driven by a motor arranged on the top of the vehicle body to move horizontally, a fixed cutter seat is fixedly installed on the positioning seat, two fixed blades arranged in an up-down mode are fixedly installed on the fixed cutter seat, and two blade assemblies are arranged in the box body. Through the two blades arranged in an up-down mode, a rotatable rectangular push block is arranged at one end of the reciprocating push rod, when the steel bar is cut, the rectangular push block only drives one blade assembly to move, in the steel bar feeding stage, the rectangular push block is rotated to a horizontal state and moves between the two blade assemblies, and when one steel bar is cut, the other steel bar is fed, the time for waiting for the steel bar feeding to control the cutting length is saved, and therefore the steel bar cutting efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of steel bar cutting equipment, and in particular to a steel bar cutting machine for distribution bars of prefabricated floor slabs. Background Art

[0002] The distribution bars in prefabricated floor slabs are important structural reinforcements that ensure the integrity and durability of the structure. They serve as fixed, load-bearing main reinforcements to resist shrinkage and temperature stress. The distribution bars transfer local stress evenly to the main reinforcements through a grid structure, avoiding stress concentration and cracking. The distribution bars in prefabricated floor slabs generally need to be cut to the required length using a rebar cutter. Existing rebar cutters include hydraulically driven and eccentric wheel types. The eccentric wheel type offers a simple structure, portability, strong stability, and low cost, and is often used on construction sites.

[0003] The existing eccentric wheel type steel bar cutting machine is driven by a motor, uses a gear set to increase torque, and then transmits the clutch to the clutch, cooperates with the rotation of the eccentric wheel to realize the reciprocating movement of the movable blade, and cooperates with the fixed blade to shear the steel bar. Due to the limited shearing force of the existing eccentric wheel type, it is generally used to cut a single steel bar. This means that after the steel bar is cut, it is necessary to wait for the steel bar to be re-loaded, resulting in low efficiency in steel bar cutting, and frequent control of clutch separation and reset is required, which makes the clutch easy to wear, and has high costs and inconvenience in maintenance. Summary of the Invention

[0004] The present application proposes a steel bar cutting machine for distribution reinforcement of prefabricated floor slab parts, which has the advantages of high steel bar cutting efficiency, low cost and easy maintenance. It is used to solve the problems of low efficiency in cutting single steel bars in existing eccentric wheel steel bar cutting machines, frequent separation and resetting of the clutch causing wear, high cost and inconvenient maintenance.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a steel bar cutting machine for distributed reinforcement of prefabricated floor slabs, comprising a car body, a box body and a positioning seat provided on the top of the car body, a reciprocating push rod movably provided in the box body, and the reciprocating push rod is driven by a motor provided on the top of the car body to move back and forth horizontally, a fixed knife seat is fixedly installed on the positioning seat, two fixed blades arranged up and down are fixedly installed on the fixed knife seat, a blade assembly corresponding to the two fixed blades is provided in the box body, a piston plate is fixedly installed on one end of the reciprocating push rod, and a transmission shaft is movably connected to the side of the piston plate away from the reciprocating push rod, and a rectangular push block is fixedly mounted on the transmission shaft.

[0006] The transmission shaft is controlled to drive the rectangular push block to rotate. When the steel bar is cut, the rectangular push block only pushes one of the blade assemblies to move. During the steel bar feeding stage, the rectangular push block is rotated to a horizontal state and moves between the two blade assemblies.

[0007] Furthermore, the box body is provided with an inner groove close to one side of the positioning seat, and the box body is also provided with two sliding grooves located on one side of the inner groove, both sliding grooves are connected to the inner groove, and the blade assembly is arranged in the sliding groove.

[0008] Furthermore, the vehicle body is provided with a first arc-shaped groove located in the inner groove, a side cover is fixedly installed on one side of the front of the inner groove, a second arc-shaped groove is provided on the side cover, and the piston plate is movably arranged in a circular groove spliced ​​by the second arc-shaped groove and the first arc-shaped groove.

[0009] Furthermore, the blade assembly includes a movable blade seat movably mounted in the sliding groove, a movable blade facing the fixed blade is fixedly mounted on the movable blade seat, a passive plate is fixedly mounted on one side of the movable blade seat, a return spring located above the movable blade seat is fixedly mounted on one side of the passive plate, and one end of the return spring is movably connected to the inner wall of the inner groove.

[0010] Furthermore, a transmission sleeve is movably mounted on the box body, one end of the transmission sleeve is movably connected to an end of the transmission shaft away from the rectangular push block, a gear box is fixedly mounted on the outside of the box body, the end of the gear box away from the rectangular push block extends to the interior of the gear box and is fixedly mounted with a first gear, a second gear is also movably mounted inside the gear box, a positioning shaft is fixedly mounted on the second gear, the outer side of the positioning shaft is meshed with the outer side of the first gear, and one end of the second gear extends out of the gear box and is fixedly connected to a push rod.

[0011] Furthermore, a transmission sleeve is movably mounted on the box body, one end of the transmission sleeve is movably connected to the end of the transmission shaft away from the rectangular push block, a servo motor is fixedly installed on the outside of the box body, and the output shaft of the servo motor is fixedly connected to the end of the transmission sleeve away from the transmission shaft.

[0012] Furthermore, a limit support device located on the front side of the fixed knife holder is fixedly installed on the box body, and the limit support device includes two sliding rods movably mounted on the box body, one end of the two sliding rods is fixedly connected to the limit support plate, and the two sliding rods are also movably mounted with a second spring located between the box body and the limit support plate, and the other end of the limit support plate extends to the outside of the box body and is fixedly connected to a baffle.

[0013] Furthermore, a notch is provided on the position-limiting support plate, and an inner side wall of the notch does not contact the transmission pipe sleeve.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The present application provides a steel bar cutting machine for distribution reinforcement of prefabricated floor slab parts. It has two blades arranged upper and lower, and a rotatable rectangular push block is provided at one end of a reciprocating push rod. When cutting the steel bars, the rectangular push block only pushes one of the blade assemblies to move. During the steel bar loading stage, the rectangular push block is rotated to a horizontal state and moves between the two blade assemblies. When one of the steel bars is cut, the other steel bar is loaded, which saves the time of waiting for the steel bars to be loaded and controlling the cutting length, thereby improving the cutting efficiency of the steel bars.

[0016] 2. The present application provides a steel bar cutting machine for distributed reinforcement of prefabricated floor slabs. By providing two upper and lower blades and a rotatable rectangular push block at one end of a reciprocating push rod, compared with the existing steel bar cutting machine which controls the separation of the clutch to prevent the blade assembly from moving horizontally so as to load the steel bars and control the cutting length, the wear problem caused by the frequent contact and separation of the clutch is avoided, and the service life of the clutch is improved. Compared with the existing steel bar cutting machine in which the clutch is arranged in the box for maintenance, the present application makes it easier to replace the rectangular push block and the blade assembly after opening the side cover, making subsequent maintenance more convenient. In addition, the clutch arranged in the box in the present application can also be used only for overload protection during the steel bar cutting process, which can reduce the cost of using the clutch. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only embodiments of the present invention. Those skilled in the art can also derive other drawings based on the provided drawings without inventive work.

[0018] Figure 1 This is a schematic structural diagram of embodiment 1 of the present invention;

[0019] Figure 2 for Figure 1 Schematic diagram of the structure after removing the side cover;

[0020] Figure 3 for Figure 2 Schematic diagram of the structure of the inner groove, sliding groove and first arc groove in the middle box;

[0021] Figure 4 for Figure 1 Schematic diagram of the back structure of the middle cover;

[0022] Figure 5 for Figure 2 A schematic structural diagram of the middle blade assembly;

[0023] Figure 6 for Figure 1Left view of;

[0024] Figure 7 for Figure 6 Schematic diagram of the internal structure of the gearbox;

[0025] Figure 8 for Figure 1 Schematic diagram of the structure of the middle limit support device;

[0026] Figure 9 This is a structural diagram of embodiment 2 of the present invention.

[0027] In the figure: 1. body; 2. box body; 201. inner groove; 202. sliding groove; 203. first arc groove; 3. positioning seat; 4. fixed knife seat; 5. fixed blade; 6. reciprocating push rod; 7. side cover; 701. second arc groove; 8. piston plate; 9. transmission shaft; 10. rectangular push block; 11. movable knife seat; 12. movable blade; 13. passive plate; 14. return spring; 15. transmission sleeve; 16. gear box; 17. first gear; 18. positioning shaft; 19. second gear; 20. push rod; 21. limit support device; 211. sliding rod; 212. limit support plate; 2121. notch; 213. second spring; 214. baffle; 22. servo motor. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example 1, as Figure 1-Figure 3The top of the car body 1 is provided with a box body 2 and a positioning seat 3, and the positioning seat 3 is fixedly installed with a fixed knife seat 4, and the fixed knife seat 4 is fixedly installed with two fixed blades 5 facing one side of the box body 2, and the two fixed blades 5 are arranged up and down, and a reciprocating push rod 6 facing one side of the positioning seat 3 is movably installed on the box body 2, and the reciprocating push rod 6 is driven by a motor arranged on one side of the top of the car body 1, and is driven by a transmission box, a clutch and an eccentric wheel transmission mechanism arranged in the car body 1 to perform horizontal reciprocating movement (the driving method of the horizontal reciprocating movement of the reciprocating push rod 6 is the same as the structure of the existing steel bar cutting machine, and the specific structure is not repeated here). An inner groove 201 close to one side of the positioning seat 3 is opened on the box body 2, and two sliding grooves 202 located on one side of the inner groove 201 are further opened on the box body 2. The two sliding grooves 202 are connected to the inner groove 201, and the two sliding grooves 202 are arranged up and down, and the two sliding grooves 202 correspond to the two fixed blades 5 one by one.

[0030] The vehicle body 1 is further provided with a first arc-shaped groove 203 located in the inner groove 201. A side cover 7 is fixedly mounted on one side of the front of the inner groove 201. Figure 1-Figure 4 A second arc-shaped groove 701 is provided on the side cover 7. A piston plate 8 is movably mounted in the circular groove formed by the second arc-shaped groove 701 and the first arc-shaped groove 203. One side of the piston plate 8 is fixedly connected to one end of the reciprocating push rod 6. The other side of the piston plate 8 is movably connected to a transmission shaft 9. The transmission shaft 9 moves together with the piston plate 8, and the transmission shaft 9 can rotate relative to the piston plate 8. A rectangular push block 10 located on the other side of the piston plate 8 is fixedly mounted on the transmission shaft 9.

[0031] The two sliding slots 202 are respectively provided with blade assemblies corresponding to the two fixed blades 5. Figure 2-Figure 3 、 Figure 5 The blade assembly includes a movable blade seat 11 movably mounted in the sliding groove 202, and the movable blade seat 11 can only move horizontally under the limiting action of the inner wall of the inner groove 201 and the side cover 7. A movable blade 12 facing the side of the fixed blade 5 is fixedly mounted on the movable blade seat 11, and a passive plate 13 is fixedly mounted on one side of the movable blade seat 11. A return spring 14 located above the movable blade seat 11 is fixedly mounted on one side of the passive plate 13, and one end of the return spring 14 is movably connected to the inner wall of the inner groove 201. The elastic force of the return spring 14 is utilized to enable the blade assembly to move into the inner groove 201 without affecting the passage of the steel bar between the box body 2 and the positioning seat 3.

[0032] See also Figure 2 、 Figure 6-Figure 7, a transmission sleeve 15 is movably mounted on the box body 2, and one end of the transmission sleeve 15 is movably connected to the end of the transmission shaft 9 away from the rectangular push block 10, and the transmission sleeve 15 can drive the transmission shaft 9 to rotate together. A gear box 16 is fixedly installed on the outside of the box body 2, and the end of the gear box 16 away from the rectangular push block 10 extends to the inside of the gear box 16 and is fixedly mounted with a first gear 17. The inside of the gear box 16 is also movably mounted with a second gear 19, and a positioning shaft 18 is fixedly mounted on the second gear 19. The outer side of the positioning shaft 18 is meshed with the outer side of the first gear 17. One end of the second gear 19 extends out of the outside of the gear box 16 and is fixedly connected to a push rod 20. In the initial state, the push rod 20 is at In the vertical state, the rectangular push block 10 is in a horizontal state and is located between the two movable knife seats 11. When the reciprocating push rod 6 drives the piston plate 8 and the rectangular push block 10 to move back and forth horizontally, it will not push one of the two movable knife seats 11 to move horizontally together. The operator manually rotates the push rod 20 counterclockwise to drive the second gear 19 and the positioning shaft 18 to rotate, and then drives the positioning shaft 18 and the transmission sleeve 15, the transmission shaft 9, and the rectangular push block 10 to rotate ninety degrees clockwise (the rotation angle of the push rod 20 can be controlled by the gear ratio of the second gear 19 and the first gear 17, so that after the push rod 20 is rotated, the rectangular push block 10 can just rotate ninety degrees), so that the rectangular push block One end of 10 is rotated to an upward vertical state, and the rectangular push block 10 can push the blade assembly in the upper sliding groove 202 to move toward one side of the box body 2, and use the movable blade 12 in the blade assembly to cooperate with the fixed blade 5 set above the fixed knife seat 4 to cut the upper steel bar. Similarly, by pushing the push rod 20 to rotate along the needle, one end of the rectangular push block 10 can be rotated to a downward vertical state, and the rectangular push block 10 can push the blade assembly in the lower sliding groove 202 to move toward one side of the box body 2, and cooperate with the fixed blade 5 set below the fixed knife seat 4 to cut the lower steel bar. Therefore, when one steel bar is cut, the other steel bar is loaded, saving waiting time. The time of cutting length is controlled by feeding the steel bars, thereby improving the cutting efficiency of the steel bars. Compared with the existing steel bar cutting machine that controls the separation of the clutch to prevent the blade assembly from moving horizontally to facilitate steel bar feeding and controlling the cutting length, the wear problem caused by frequent contact and separation of the clutch is avoided, and the service life of the clutch is improved. Compared with the existing steel bar cutting machine, the clutch is set in the box body 2 for maintenance and repair. After opening the side cover 7, the rectangular push block 10 and the blade assembly are more convenient to replace, making subsequent maintenance more convenient. In addition, the clutch set in the box body 2 in the present application can also be used only for overload protection during the steel bar cutting process, which can reduce the cost of using the clutch.

[0033] See also Figure 1 、 Figure 2 and Figure 8The box body 2 is fixedly installed with a limit support device 21 located on the front side of the fixed knife holder 4. The limit support device 21 includes two sliding rods 211 movably sleeved on the box body 2. One end of the two sliding rods 211 is fixedly connected to the limit support plate 212. The two sliding rods 211 are also movably sleeved with a second spring 213 located between the box body 2 and the limit support plate 212. The other end of the limit support plate 212 extends to the outside of the box body 2 and is fixedly connected to a baffle 214. Through the elastic force of the second spring 213, combined with the limiting effect of the baffle 214 on the outside of the box body 2, the side of the limit support plate 212 can be located in the same plane as the side of the fixed blade 5. The limit support plate 212 is used to support the side of the steel bar being cut, which is beneficial to improving the cutting effect of the steel bar.

[0034] A notch 2121 is defined on the position-limiting support plate 212 . The inner sidewall of the notch 2121 does not contact the transmission sleeve 15 , thereby not affecting the rotation of the transmission sleeve 15 .

[0035] Example 2, as Figure 9 On the basis of Example 1, the difference from Example 1 is that a servo motor 22 is fixedly installed on the outside of the box body 2, and the output shaft of the servo motor 22 is fixedly connected to the end of the transmission sleeve 15 away from the transmission shaft 9. The output shaft is driven by the servo motor 22 to drive the transmission sleeve 15, the transmission shaft 9 and the rectangular push block 10 to rotate. Driven by the servo motor 22, no manual operation is required.

[0036] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steel bar cutting machine for distribution reinforcement of prefabricated floor slabs, comprising a body, a box body and a positioning seat provided on the top of the body, a reciprocating push rod movably provided in the body, and the reciprocating push rod is driven by a motor provided on the top of the body to move back and forth horizontally, a fixed knife seat is fixedly installed on the positioning seat, and is characterized in that: Two fixed blades arranged up and down are fixedly mounted on the fixed blade holder, and a blade assembly corresponding to the two fixed blades is provided in the box body. A piston plate is fixedly mounted on one end of the reciprocating push rod, and a transmission shaft is movably connected to the side of the piston plate away from the reciprocating push rod, and a rectangular push block is fixedly sleeved on the transmission shaft; The box body is provided with an inner groove close to one side of the positioning seat, and the box body is also provided with two sliding grooves located on one side of the inner groove, both sliding grooves are connected to the inner groove, and the blade assembly is arranged in the sliding groove; The blade assembly includes a movable blade seat movably mounted in the sliding groove, a movable blade facing the fixed blade fixedly mounted on the movable blade seat, a passive plate fixedly mounted on one side of the movable blade seat, a return spring fixedly mounted on one side of the passive plate and located above the movable blade seat, and one end of the return spring movably connected to the inner wall of the inner groove; During the initial feeding stage of the steel bars, the rectangular push block is rotated to a horizontal state and moves between the two blade assemblies. The transmission shaft is controlled to drive the rectangular push block to rotate. When the steel bars are cut, the rectangular push block only pushes one of the blade assemblies to move. When one of the steel bars is cut, the other steel bar is fed.

2. The steel bar cutting machine for distribution bars of prefabricated floor slabs according to claim 1, characterized in that: The vehicle body is further provided with a first arc-shaped groove located in the inner groove, a side cover is fixedly installed on one side of the front of the inner groove, a second arc-shaped groove is provided on the side cover, and the piston plate is movably arranged in a circular groove spliced ​​by the second arc-shaped groove and the first arc-shaped groove.

3. The steel bar cutting machine for distribution bars of prefabricated floor slabs according to claim 1, characterized in that: A transmission sleeve is movably mounted on the box body, one end of the transmission sleeve is movably connected to an end of the transmission shaft away from the rectangular push block, a gear box is fixedly mounted on the outside of the box body, one end of the gear box away from the rectangular push block extends to the interior of the gear box and a first gear is fixedly mounted thereon, a second gear is movably mounted inside the gear box, a positioning shaft is fixedly mounted on the second gear, the outer side of the positioning shaft is meshed with the outer side of the first gear, and one end of the second gear extends out of the gear box and is fixedly connected to a push rod.

4. The steel bar cutting machine for distribution bars of prefabricated floor slabs according to claim 1, characterized in that: A transmission sleeve is movably mounted on the box body, one end of the transmission sleeve is movably connected to an end of the transmission shaft away from the rectangular push block, a servo motor is fixedly mounted on the outside of the box body, and the output shaft of the servo motor is fixedly connected to an end of the transmission sleeve away from the transmission shaft.

5. The steel bar cutting machine for distribution bars of prefabricated floor slabs according to claim 3 or 4, characterized in that: A limit support device located on the front side of the fixed knife holder is fixedly installed on the box body, and the limit support device includes two sliding rods movably mounted on the box body, one end of the two sliding rods is fixedly connected to the limit support plate, and the two sliding rods are also movably mounted with a second spring located between the box body and the limit support plate, and the other end of the limit support plate extends to the outside of the box body and is fixedly connected to a baffle.

6. The steel bar cutting machine for distribution bars of prefabricated floor slabs according to claim 5, characterized in that: The position limiting support plate is provided with a notch, and the inner side wall of the notch does not contact the transmission pipe sleeve.

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