Reciprocating steel bar moving saw machine

Abstract

This utility model relates to the field of cutting device technology, specifically to a reciprocating rebar mobile saw. It includes a mobile cutting table, a cutting assembly at the lower part of the mobile cutting table, a reciprocating assembly at the bottom of the cutting assembly for driving the cutting assembly to reciprocate along an arc, and a pair of drive assemblies fixedly mounted on the top of the mobile cutting table for moving the rebar. Two clamping rings located on the same x-axis are pushed closer together along a guide rod, clamping the rebar while ensuring that the area near the cutting point remains taut, thus preventing displacement of the cutting point after bending due to differences in flexibility at different parts of the rebar. After the rebar is cut by the saw blade, both clamping rings lose the constraint of the intact rebar. Under the restoring force of two first springs, the two clamping rings drive the two cut rebar segments away from the saw blade, thus preventing the rebar cut from being worn by the side of the saw blade.

Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, specifically to a reciprocating rebar mobile saw. Background Technology

[0002] In the construction and building materials processing industry, large-scale fixed-length rebar cutting operations generally rely on fixed clamping devices. However, existing cutting equipment suffers from significant technical bottlenecks: traditional cutting devices require releasing the rebar after each cut to adjust the feed distance, and this frequent clamping operation severely reduces work efficiency. While mobile rebar saws, designed to improve efficiency, employ a manual material-holding cutting method, the lack of a reliable dynamic positioning mechanism makes it difficult to control the accuracy of the rebar segment length, and also presents the following contradictory defects:

[0003] Firstly, when the spacing between the fixing points of the reinforcing bars is too large, the radial resistance generated by the saw blade during cutting can easily cause the reinforcing bars to bend and deform, resulting in uneven cuts and offset cutting points, which seriously affects the yield. Particularly noteworthy is that the material variation between different batches of reinforcing bars amplifies this error, causing length deviations.

[0004] Secondly, if the clamping distance is forcibly shortened to maintain the rigidity of the steel bar, although the amount of bending can be controlled, the cut section is prone to continuous friction with the side of the high-speed rotating saw blade during the movement process.

[0005] In view of this, we propose a reciprocating rebar moving saw to improve the shortcomings of the existing technology. Utility Model Content

[0006] The purpose of this utility model is to provide a reciprocating rebar saw. Because rebar itself is highly flexible, during the cutting process, when the saw blade contacts the rebar, the rebar will bend due to the resistance of the saw blade. This not only easily leads to uneven cuts but also causes the cutting point to shift due to differences in flexibility throughout the rebar. If the two fixed points of the rebar are set close together to straighten it, after cutting, the cut rebar will remain near the saw blade. As the moving device moves the rebar, the cut will come into contact with the side of the saw blade, causing wear and tear on the originally smooth cut.

[0007] If the fixing points of the reinforcing bars are too far apart, the bars may bend during cutting; if they are too close together, the cut edges of the reinforcing bars may be worn down by the saw blade.

[0008] To achieve the above objectives, the reciprocating rebar mobile saw includes a mobile cutting table, a cutting assembly at the lower part of the mobile cutting table, a reciprocating assembly at the bottom of the cutting assembly for driving the cutting assembly to reciprocate along an arc, a pair of drive assemblies for driving the rebar to move are fixedly installed on the top of the mobile cutting table, and a cutting groove is opened between the two drive assemblies on the top of the mobile cutting table.

[0009] The driving assembly includes a fixed module and a movable module distributed along the y-axis. Each of the two movable modules is provided with a clamping assembly at its top. The clamping assembly includes a limiting seat and multiple fixing parts. The limiting seat is fixedly connected to multiple guide rods distributed along the x-axis on the side near the cutting groove. Each fixing part is slidably connected to the corresponding guide rod.

[0010] Before and during cutting, two fasteners located on the same x-axis are used on both sides of the rebar cutting point, and the two fasteners can straighten both sides of the rebar cutting point.

[0011] In the above technical solution, a limiting cap is fixedly connected to the end of the guide rod away from the limiting seat to prevent the fixing component from falling off.

[0012] In another technical solution, the fixing component includes a clamping ring slidably connected to the guide rod. The clamping ring has a plurality of concentrically arranged clamping arms. Each clamping arm has a telescopic rod fixedly connected to the side away from its own axis. The end of the telescopic rod away from the clamping arm is slidably connected to the clamping ring. A spring is sleeved around the telescopic rod between the outer wall of the telescopic rod and the inner wall of the clamping ring.

[0013] Before installing the rebar to be cut, insert the rebar into two fasteners located on the same x-axis. Since the radius of the rebar is larger than the radius of the circle containing the inner diameter of the clamping arm (this is designed to ensure that the clamping arm can clamp the rebar), the rebar squeezes the clamping arm, causing the telescopic rod to slide towards the outer wall of the clamping ring. At the same time, the spring is squeezed, so the multiple clamping arms located in the same clamping ring clamp the rebar under the action of the restoring force of each spring. Then, push the two clamping rings located on the same x-axis closer to each other along the guide rod. While clamping the rebar, ensure that the area near the cutting point of the rebar remains taut, thereby preventing the displacement of the cutting point after the rebar is cut due to the difference in flexibility at different parts of the rebar.

[0014] Based on the above description, the beneficial effects of this utility model compared with the prior art are:

[0015] Push the two clamping rings located on the same x-axis closer together along the guide rod. While clamping the rebar, ensure that the area near the cutting point of the rebar remains taut, thereby preventing the rebar from shifting at the cutting point after bending due to differences in flexibility at different parts of the rebar. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 This is a partial cross-sectional perspective view of the present invention;

[0019] Figure 3 This is a partial sectional left view of the present invention;

[0020] Figure 4 This is one of the three-dimensional structural views of the reciprocating component of this utility model;

[0021] Figure 5 This is the second three-dimensional structural view of the reciprocating component of this utility model;

[0022] Figure 6 This is a three-dimensional structural view of the cutting component of this utility model;

[0023] Figure 7 This is a three-dimensional structural view of the drive component of this utility model;

[0024] Figure 8 This is a sectional front view of the drive component of this utility model;

[0025] Figure 9 This is a three-dimensional structural view of the clamping assembly of this utility model;

[0026] Figure 10 This is a front view of the clamping assembly of this utility model;

[0027] Figure 11 For the present utility model Figure 10 Enlarged view of point A in the middle;

[0028] Figure 12 This is a three-dimensional structural view of the fastener of this utility model;

[0029] Figure 13 This is a front view of the structure of the fastener of this utility model.

[0030] The meanings of the labels in the diagram are as follows:

[0031] 100. Movable cutting table; 110. Cutting groove;

[0032] 200. Reciprocating assembly; 210. Mounting bracket; 220. Mounting bolt; 230. Reciprocating lead screw; 240. Lead screw nut seat; 250. Adjusting plate; 260. Drive bracket; 270. First motor;

[0033] 300. Cutting assembly; 310. Saw blade; 320. Second motor; 330. Wheel; 340. Belt;

[0034] 400. Drive assembly; 410. I-beam rail; 420. Drive base; 430. Drive wheel; 440. Driven wheel; 450. Third motor;

[0035] 500 Clamping assembly; 510 Limiting seat; 520 Guide rod; 530 Fixing component; 531 Clamping ring; 532 Clamping arm; 533 Telescopic rod; 534 Spring; 540 Limiting cap. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Please see Figures 1-3 As shown, fixing the reinforcing bars too far apart can easily cause them to bend during cutting, while fixing them too close together can easily cause the surface of the cut end of the reinforcing bars to be worn by the saw blade 310.

[0038] The purpose of this embodiment is to provide a reciprocating rebar mobile saw, including a mobile cutting table 100, a cutting component 300 at the lower part of the mobile cutting table 100, a reciprocating component 200 at the bottom of the cutting component 300 for driving the cutting component 300 to reciprocate along an arc, a pair of driving components 400 for driving the rebar to move are fixedly provided at the top of the mobile cutting table 100, and a cutting groove 110 is opened between the two driving components 400 at the top of the mobile cutting table 100.

[0039] The drive assembly 400 includes a fixed module and a movable module distributed along the y-axis. The top of each movable module is provided with a clamping assembly 500. The clamping assembly 500 includes a limiting seat 510 and multiple fixing members 530. The limiting seat 510 has multiple guide rods 520 distributed along the x-axis fixedly connected to the side near the cutting groove 110. Each fixing member 530 is slidably connected to the corresponding guide rod 520.

[0040] Before and during cutting, two fasteners 530 located on the same x-axis are used on both sides of the rebar cutting point, and the two fasteners 530 can straighten both sides of the rebar cutting point.

[0041] In practice, the reinforcing bar to be cut is first inserted into two fasteners 530 located on the same x-axis. This process is repeated until the fasteners 530 are filled with reinforcing bars. Then, the two fasteners 530 are pushed closer together to clamp the two sides of the cutting point of the reinforcing bar. Under the action of the resetting force of the two fasteners 530 along the guide rod 520, the two fasteners 530 straighten the two sides of the cutting point of the reinforcing bar.

[0042] Then, the two drive components 400 are activated to move multiple reinforcing bars located on multiple x-axis axes toward the cutting groove 110. At the same time, the reciprocating component 200 and the cutting component 300 are activated. The reciprocating component 200 drives the cutting component 300 to reciprocate along an arc within the cutting groove 110, thereby cutting the reinforcing bars that have passed through the cutting groove 110.

[0043] After the reinforcing bar is cut, the two fixing members 530 located on the same x-axis move the two sections of reinforcing bar away from each other, thereby preventing the cut ends of the two sections of reinforcing bar from being worn. Multiple reinforcing bars located on multiple x-axis are cut by the cutting member 300 in sequence and then move away from the cutting member 300 through the above process of approaching the cutting member 300, thereby making it easier to remove the cut reinforcing bar from the fixing member 530 and improving the cutting efficiency.

[0044] like Figure 4 and Figure 5 As shown, the reciprocating assembly 200 includes a mounting bracket 210 installed on the lower part of the movable cutting table 100, and an adjustment plate 250 is rotatably connected to one end of the top of the mounting bracket 210.

[0045] The improvement is as follows: a pair of mounting bolts 220 are provided on the top of the mounting bracket 210, and a reciprocating screw 230 is rotatably connected between the two mounting bolts 220. A screw nut seat 240 is threaded onto the reciprocating screw 230, and a drive bracket 260 is rotatably connected to the upper part of the screw nut seat 240. The end of the drive bracket 260 away from the screw nut seat 240 is rotatably connected to the adjusting plate 250. The reciprocating screw 230 is driven by the first motor 270.

[0046] It should be disclosed that after the power supply of the first motor 270 is turned on, the first motor 270 drives the reciprocating lead screw 230, which is coaxially connected to its output shaft, to rotate. The reciprocating lead screw 230 drives the lead screw nut seat 240, which is threadedly connected to it, to reciprocate along the axis of the reciprocating lead screw 230. During the reciprocating motion of the lead screw nut seat 240, the drive bracket 260 swings left and right around its axis of rotation with the adjusting plate 250, thereby driving the adjusting plate 250 to reciprocate in an arc around its axis of rotation with the mounting bracket 210, thereby driving the saw blade 310 to reciprocate in an arc.

[0047] exist Figure 6 In the middle, the cutting assembly 300 includes a saw blade 310 and a second motor 320. The second motor 320 is used to drive the saw blade 310 to rotate, and at the same time, the saw blade 310 reciprocates in an arc around the axis of the adjusting plate 250 in the cutting groove 110.

[0048] In addition, a pair of wheel discs 330 are arranged side by side on one side of the second motor 320. One of the wheel discs 330 is coaxially connected to the output shaft of the second motor 320, and the other wheel disc 330 is coaxially connected to the saw blade 310. The two wheel discs 330 are wrapped with belts 340.

[0049] It should be noted that after the power supply of the second motor 320 is turned on, the second motor 320 drives the wheel 330, which is coaxially connected to its output shaft, to rotate. The wheel 330 then drives the belt 340 on its periphery to rotate, and the belt 340 then drives another wheel 330 to rotate, thereby transmitting the output torque of the second motor 320 to the saw blade 310. The saw blade 310 rotates while following the adjustment plate 250 in an arc reciprocating motion, thereby completing the cutting of the steel bar.

[0050] like Figure 7 and Figure 8 As shown below, the specific structure of the drive assembly 400 is disclosed. The fixed module includes an I-shaped rail 410 fixedly connected to the top of the movable cutting table 100. The two I-shaped rails 410 are located on both sides of the cutting groove 110. The movable module includes a drive seat 420 slidably connected to the top of the I-shaped rail 410.

[0051] Furthermore, the drive base 420 is rotatably connected to multiple drive wheels 430 and multiple driven wheels 440. The drive wheels 430 are in contact with the two ends of the I-shaped rail 410, and the driven wheels 440 are in contact with the rail body of the I-shaped rail 410. The drive wheels 430 are driven by a third motor 450.

[0052] In other words, when the third motor 450 drives the drive wheel 430 to rotate, under the action of friction between the drive wheel 430 and the I-shaped rail 410, the drive seat 420 drives the steel bar to be cut, which is fixed in the fixing member 530, to move closer to the saw blade 310.

[0053] Based on the above explanation, the following will further combine... Figures 9-13 To explain the preferred effect of the clamping assembly 500, the end of the guide rod 520 away from the limiting seat 510 is fixedly connected to a limiting cap 540 to prevent the fixing member 530 from falling off.

[0054] Furthermore, the fixing member 530 includes a clamping ring 531 that is slidably connected to the guide rod 520. The clamping ring 531 has a plurality of concentrically arranged clamping arms 532. Each clamping arm 532 has a telescopic rod 533 fixedly connected to the side away from its own axis. The end of the telescopic rod 533 away from the clamping arm 532 is slidably connected to the clamping ring 531. A spring 534 is sleeved on the periphery of the telescopic rod 533 between the outer wall of the telescopic rod 533 and the inner wall of the clamping ring 531.

[0055] It should be noted that before installing the rebar to be cut, the rebar is inserted into two fixing members 530 located on the same x-axis. Since the radius of the rebar is larger than the radius of the circle containing the inner diameter of the clamping arm 532 (this is designed to ensure that the clamping arm 532 can clamp the rebar), the rebar squeezes the clamping arm 532, causing the telescopic rod 533 to slide towards the outer wall of the clamping ring 531. At the same time, the spring 534 is squeezed. Thus, the multiple clamping arms 532 located in the same clamping ring 531 clamp the rebar under the restoring force of each spring 550. Then, the two clamping rings 531 located on the same x-axis are pushed closer to each other along the guide rod 520. While clamping the rebar, it is ensured that the area near the cutting point of the rebar remains taut, thereby preventing the displacement of the cutting point after the rebar is cut due to the difference in flexibility at different parts of the rebar.

[0056] It should be disclosed that, in order to cut multiple long steel bars into fixed-length steel bar segments, the pair of limiting seats 510 used in this embodiment have openings on the same x-axis as the clamping ring 531 for inserting the steel bars into the limiting channels. Please refer to the following for details. Figure 1 and Figure 9 The limiting channel on the left limiting seat 510 is connected at both ends, while the limiting channel on the right limiting seat 510 is closed at the right end. After the steel bar is inserted into the clamping ring 531 and the limiting channel, the saw blade 310 cuts the steel bar into fixed-length steel bar segments.

[0057] After the steel bar is cut by the saw blade 310, both clamping rings 531 lose the restraint of the complete steel bar (the friction between the steel bar and the clamping arm 532). Under the restoring force of the two first springs 550, the two clamping rings 531 drive the two cut steel bars away from each other from the saw blade 310, thereby preventing the cut of the steel bar from being worn by the side of the saw blade 310.

[0058] Furthermore, in order to balance the speed of batch processing of reinforcing bars with ensuring their physiological activity during handling, please continue reading. Figure 12and Figure 13 Both sides of the clamping arm 532 are curved and smooth, so that when installing the steel bar before cutting and removing the steel bar segment after cutting, the steel bar (semi-finished product) and steel bar segment (finished product) can be easily and quickly pushed and pulled to slide within multiple clamping arms 532.

[0059] In summary, the working principle of this utility model is as follows:

[0060] Insert the steel bar to be cut into two fasteners 530 located on the same x-axis, and then push the two fasteners 530 closer together to clamp the two sides of the cutting point of the steel bar.

[0061] Before installing the steel bar to be cut, insert the steel bar into two fasteners 530 located on the same x-axis. Repeat the above operation until the fasteners 530 are filled with steel bars. Since the radius of the steel bar is larger than the radius of the circle containing the inner diameter of the clamping arm 532, the steel bar squeezes the clamping arm 532 and drives the telescopic rod 533 to slide towards the outer wall of the clamping ring 531. At the same time, the spring 534 is squeezed. Thus, the multiple clamping arms 532 located in the same clamping ring 531 clamp the steel bar under the restoring force of each spring 550.

[0062] When the third motor 450 drives the drive wheel 430 to rotate, under the action of friction between the drive wheel 430 and the I-shaped rail 410, the drive seat 420 drives the steel bar to be cut, which is fixed in the fixing member 530, to move closer to the saw blade 310.

[0063] The first motor 270 drives the reciprocating lead screw 230, which is coaxially connected to its output shaft, to rotate. The reciprocating lead screw 230 drives the lead screw nut seat 240, which is threadedly connected to it, to reciprocate along the axis of the reciprocating lead screw 230. During the reciprocating motion of the lead screw nut seat 240, the drive bracket 260 swings left and right around its axis of rotation with the adjusting plate 250, thereby driving the adjusting plate 250 to reciprocate in an arc around its axis of rotation with the mounting bracket 210, thereby driving the saw blade 310 to reciprocate in an arc.

[0064] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A reciprocating rebar mobile saw, comprising a mobile cutting table (100), wherein a cutting assembly (300) is provided at the lower part of the mobile cutting table (100), and a reciprocating assembly (200) is provided at the bottom of the cutting assembly (300) for driving the cutting assembly (300) to reciprocate along an arc, and a pair of driving assemblies (400) for driving the rebar to move are fixedly provided at the top of the mobile cutting table (100), and a cutting groove (110) is formed between the two driving assemblies (400) at the top of the mobile cutting table (100), characterized in that: The drive assembly (400) includes a fixed module and a movable module distributed along the y-axis. Each of the two movable modules is provided with a clamping assembly (500) at its top. The clamping assembly (500) includes a limiting seat (510) and a plurality of fixing members (530). The limiting seat (510) is fixedly connected to a plurality of guide rods (520) distributed along the x-axis on the side near the cutting groove (110). Each fixing member (530) is slidably connected to the corresponding guide rod (520). Before and during cutting, two fasteners (530) located on the same x-axis are used on both sides of the rebar cutting point, and the two fasteners (530) can straighten both sides of the rebar cutting point; After the cutting is completed, the two fixing members (530) drive the two cut steel bars away from the cutting assembly (300).

2. The reciprocating rebar movement saw machine of claim 1, wherein: The reciprocating assembly (200) includes a mounting bracket (210) installed on the lower part of the movable cutting table (100), and an adjustment plate (250) is rotatably connected to one top end of the mounting bracket (210).

3. The reciprocating rebar movement saw machine of claim 2, wherein: The mounting bracket (210) has a pair of mounting bolts (220) on its top. A reciprocating screw (230) is rotatably connected between the two mounting bolts (220). A screw nut seat (240) is threaded onto the reciprocating screw (230). A drive bracket (260) is rotatably connected to the upper part of the screw nut seat (240). The end of the drive bracket (260) away from the screw nut seat (240) is rotatably connected to the adjusting plate (250). The reciprocating screw (230) is driven by a first motor (270).

4. The reciprocating steel bar moving saw according to claim 3, characterized in that: The cutting assembly (300) includes a saw blade (310) and a second motor (320). The second motor (320) is used to drive the saw blade (310) to rotate, and at the same time, the saw blade (310) moves in an arc reciprocating motion around the axis of the adjusting plate (250) in the cutting groove (110).

5. The reciprocating steel bar moving saw according to claim 4, characterized in that: A pair of wheel discs (330) are arranged side by side on one side of the second motor (320). One of the wheel discs (330) is coaxially connected to the output shaft of the second motor (320), and the other wheel disc (330) is coaxially connected to the saw blade (310). The two wheel discs (330) are wrapped with belts (340).

6. The reciprocating steel bar moving saw according to claim 1, characterized in that: The fixed module includes an I-shaped rail (410) fixedly connected to the top of the movable cutting table (100), with two I-shaped rails (410) located on both sides of the cutting groove (110). The movable module includes a drive seat (420) slidably connected to the top of the I-shaped rail (410).

7. The reciprocating steel bar moving saw according to claim 6, characterized in that: The drive seat (420) is rotatably connected to a plurality of drive wheels (430) and a plurality of driven wheels (440). The drive wheels (430) are in contact with the two ends of the I-shaped rail (410), and the driven wheels (440) are in contact with the rail body of the I-shaped rail (410). The drive wheels (430) are driven by a third motor (450).

8. The reciprocating steel bar mobile saw according to claim 1, characterized in that: The guide rod (520) is fixedly connected to a limiting cap (540) at the end away from the limiting seat (510) to prevent the fixing member (530) from falling off.

9. The reciprocating steel bar mobile saw according to claim 1, characterized in that: The fixing member (530) includes a clamping ring (531) slidably connected to the guide rod (520). The clamping ring (531) has a plurality of concentrically arranged clamping arms (532). Each clamping arm (532) has a telescopic rod (533) fixedly connected to the side away from its own axis. The end of the telescopic rod (533) away from the clamping arm (532) is slidably connected to the clamping ring (531). A spring (534) is sleeved on the periphery of the telescopic rod (533) between the outer wall of the telescopic rod (533) and the inner wall of the clamping ring (531).

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