A groove reinforcement cage forming mould

Abstract

The utility model discloses a recessed reinforcement cage forming mould, including jig frame, support, clamp, screw rod, hydraulic cylinder and pressure head, the support of rectangular frame places in the top left side of the upper frame of jig frame, and the support is pressed in the both ends of straight reinforcement that is placed to the jig frame, two clamps are respectively from the front and back ends of the upper frame of jig frame and hold support and jig frame, and the top of screw rod is connected in the top of clamp, and the top end of screw rod and the top end surface of the upper frame of support abut, fix support on the jig frame, two completely same hydraulic cylinders are fixedly connected respectively in the front and back ends of the upper support, between two clamps, and the telescopic direction is vertical, and the end of telescopic rod of hydraulic cylinder is fixedly connected in pressure head. The straight reinforcement under the support can be bent into the recessed reinforcement of several characters by pressure head down. The utility model has the advantages of automatic bending recessed reinforcement, realizing one person operation to make recessed reinforcement cage, reducing manpower, time saving and labor saving.

Description

Technical Field

[0001] This utility model relates to the field of track construction tools, specifically to a grooved steel cage forming jig. Background Technology

[0002] Ballastless track refers to a track structure that uses a monolithic foundation of concrete, asphalt mixture, etc., instead of loose gravel track. Also known as ballastless track, it represents the world's most advanced track technology. During construction, molds are first erected, and then concrete is poured to form a grooved base. This grooved structure not only interlocks with the track slab to restrict its lateral movement but also allows the concrete to expand and contract freely due to temperature changes, preventing cracking caused by constraint stress. During the casting of the track slab, the bottom also requires the binding of a grooved steel reinforcement cage. However, the grooved steel reinforcement cage is small and has size limitations. Even with a bending machine, multiple people are needed to measure, bend, and bind the cage, making the process time-consuming and labor-intensive.

[0003] Therefore, to address the above shortcomings, it is necessary to develop a grooved steel cage forming jig. Summary of the Invention

[0004] The purpose of this utility model is to provide a grooved steel cage forming jig to solve the current problem that multiple people are needed to bend the grooved steel bars.

[0005] The purpose of this utility model is achieved as follows:

[0006] A grooved rebar cage forming jig, characterized by comprising a jig frame, a support, clamps, a screw, a hydraulic cylinder, and a pressure head. The support of the rectangular frame is placed on the top left side of the upper frame of the jig frame, and the support presses on both ends of the straight rebar placed on the jig frame. Two clamps clamp the support and the jig frame from the front and rear ends of the upper frame of the jig frame, respectively. The screw is threaded to the top of the clamps, and the top end of the screw abuts against the top surface of the upper frame of the support, fixing the support to the jig frame. The bottoms of two identical hydraulic cylinders are fixedly connected to the front and rear ends of the support frame and between the two clamps, respectively, and the extension and retraction direction is vertical. The pressure head is fixedly connected to the end of the extension rod of the hydraulic cylinder.

[0007] As a further explanation of this utility model, preferably, the jig is a quadrangular prism frame composed of an upper frame, a lower frame and a support rod. The size of the jig is slightly larger than the size of the grooved steel bar to be formed. A folding rod is fixedly connected to the inner side of the front and rear ends of the upper frame of the jig. The top of the folding rod near the pressure head is an arc surface.

[0008] As a further explanation of this utility model, preferably, the bracket is a rectangular frame, and circular grooves are provided on the side walls at both the front and rear ends of the bracket, which penetrate the side walls of the bracket and are on the same straight line, so as to insert straight steel bars.

[0009] As a further explanation of this utility model, preferably, the bottom of the outer shell of the hydraulic cylinder is fixed to the upper frame of the bracket by a Z-shaped plate, the inner width of the Z-shaped plate being greater than the width of the pressure head, for accommodating the pressure head in its initial position.

[0010] As a further explanation of this utility model, preferably, the clamp is a U-shaped structure, the inner width of the clamp is greater than the sum of the thickness of the upper frame of the jig and the support, the bottom end face of the clamp abuts against the bottom end face of the upper frame of the jig, the top end of the screw tightly abuts against the top end face of the upper frame of the support, so that the top end face of the upper frame sinks slightly, and the surface of the circular groove inside the upper frame used to fix the straight bar contacts the straight bar, generating friction to limit the slippage of the straight bar, so as to fix the straight bar.

[0011] As a further explanation of this utility model, preferably, the width of the pressure head is greater than the diameter of the straight steel bar, and the downward movement of the pressure head can bend the straight steel bar under the support into a Z-shaped grooved steel bar.

[0012] This utility model has the following advantages:

[0013] 1. By adding a support with a hydraulic cylinder to the existing jig, straight steel bars can be automatically bent, and the bending depth can be adjusted according to actual needs. This allows the jig to manufacture grooved steel bars of different sizes, improving its applicability.

[0014] 2. Compared with the traditional binding work that requires multiple people to complete, this utility model can make grooved steel cages by one person, reducing manpower and saving time and effort. Attached Figure Description

[0015] Figure 1 This is an assembly rendering of the present invention;

[0016] Figure 2 This is a side view of the present invention;

[0017] Figure 3 yes Figure 2 Enlarged view of A in the middle;

[0018] Figure 4 This is a cross-sectional view of the bracket and reinforcing steel assembly of this utility model;

[0019] Figure 5 This is another cross-sectional view of the bracket and reinforcing steel assembly of this utility model;

[0020] Figure 6 This is a bottom view of the present invention;

[0021] Figure 7 This is a rendering of the assembly of the steel cage with the fixture of this utility model.

[0022] In the diagram: 1. Frame; 11. Folding rod; 12. Z-shaped plate; 13. Inner cavity; 2. Support; 21. Circular groove; 3. Clamp; 4. Screw; 5. Hydraulic cylinder; 6. Pressure head; 61. Arc surface; 7. Grooved steel bar; 8. Upper frame; 9. Straight steel bar; 10. Telescopic rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] A grooved rebar cage forming jig includes a jig frame 1, a support 2, clamps 3, screws 4, hydraulic cylinders 5, and a pressing head 6. The support 2, a rectangular frame, is placed on the top left side of the upper frame 8 of the jig frame 1, and the support 2 presses down on both ends of the straight rebars 9 placed on the jig frame 1. Two clamps 3 clamp the support 2 and the jig frame 1 from the front and rear ends of the upper frame 8 of the jig frame 1, respectively. The screw 4 is threaded to the top of the clamps 3, and the top end of the screw 4 abuts against the top surface of the upper frame 8 of the support 2, fixing the support 2 to the jig frame 1. The bottoms of two identical hydraulic cylinders 5 are fixedly connected to the front and rear ends of the support 2 and between the two clamps 3, respectively, and the extension and retraction direction is vertical. The pressing head 6 is fixedly connected to the end of the extension rod 10 of the hydraulic cylinder 5.

[0025] The jig 1 is a quadrangular prism frame consisting of an upper frame 8, a lower frame, and support rods. The size of the jig 1 is slightly larger than the size of the grooved steel bar 7 to be formed. A folding rod 11 is fixedly connected to the inner side of each end of the upper frame 8 of the jig 1. The top of the folding rod 11 near the pressure head 6 is a rounded surface 61. The folding rod 11 can act as a fulcrum when bending the straight steel bar 9, and at the same time make the straight steel bar 9 easier to bend.

[0026] The support 2 is a rectangular frame. Circular grooves 21 are provided on the side walls of the front and rear ends of the support 2, which penetrate the side walls of the support 2 and are on the same straight line, so as to insert straight steel bars 9.

[0027] The bottom of the outer shell of the hydraulic cylinder 5 is fixed to the upper frame 8 of the bracket 2 by a zigzag plate 12. The width of the inner cavity 13 of the zigzag plate 12 is greater than the width of the pressure head 6, which is used to accommodate the pressure head 6 in the initial position, so that the pressure head 6 can contact the straight steel bar 9 when it moves downward.

[0028] The clamp 3 has a U-shaped structure. The inner width of the clamp 3 is greater than the total thickness of the upper frame 8 of the jig 1 and the support 2. The bottom end face of the clamp 3 abuts against the bottom end face of the upper frame 8 of the jig 1. The top end of the screw 4 tightly abuts against the top end face of the upper frame 8 of the support 2, causing the top end face of the upper frame 8 to sink slightly. The surface of the circular groove 21 inside the upper frame 8 used to fix the straight bar 9 is in contact with the straight bar 9, generating friction to limit the slippage of the straight bar 9, thereby fixing the straight bar 9 and preventing the straight bar 9 from slipping out of the support 2 and affecting the molding effect.

[0029] An arc surface 61 is provided on the end of the pressure head 6 near the straight reinforcing bar 9. When the arc surface 61 contacts the straight reinforcing bar 9, it provides a smoother force application path, making the straight reinforcing bar 9 subjected to uniform force during bending. This facilitates control of the bending radius and angle, and avoids sharp compression or cutting of the surface of the straight reinforcing bar 9, reducing surface scratches and local deformation, thus keeping the mechanical properties of the straight reinforcing bar 9 (such as tensile strength and toughness) unaffected. The width of the pressure head 6 is greater than the diameter of the straight reinforcing bar 9. When the pressure head 6 moves downward, it can bend the straight reinforcing bar 9 under the support 2 into a Z-shaped grooved reinforcing bar 7.

[0030] Working principle:

[0031] 1. In use, first fix the front end of the bracket 2 to the jig 1 using the clamp 3 and the screw 4 (the front end of the bracket 2 can also be further designed as a cylindrical rod with a through groove, such as...). Figure 5 As shown, by removing only one side of the clamp 3 and screw 4, the bracket 2 can be flipped upward along the axis of the cylindrical member on the other side. Then, the straight steel bar 9 is inserted into the circular groove 21 at the front end of the bracket 2, and the other end of the straight steel bar 9 is also inserted into the circular groove 21 at the rear end of the bracket 2. Finally, it is fixedly connected to the jig 1 by the clamp 3 and screw 4, thus completing the fixation of the straight steel bar 9.

[0032] 2. Then start the hydraulic cylinder 5. The extension rod 10 of the hydraulic cylinder 5 moves downward, causing the pressure head 6 to move downward and abut against the top of the straight steel bar 9, and continue downward until the straight steel bar 9 is bent downward. Under the action of the bending rod 11 and the arc surface of the pressure head 6, the straight steel bar 9 can be bent faster.

[0033] 3. The staff dynamically adjusts the clamping degree of the screw 4 according to the bending situation, so that the hydraulic cylinder 5 can press the straight steel bar 9 into a regular grooved steel bar 7.

[0034] 4. After bending, remove the clamp 3 at the front end, lift the front end of the bracket 2, rotate the grooved steel bar 7 to a horizontal position, and then pull it away from the rear end of the bracket 2. Place it on the right side or in the middle of the upper frame 8 of the jig 1 for later use. Once all straight steel bars 9 have been bent, the bracket 2 can be removed, and then... Figure 4 Place grooved steel bars 7 in the center and then tie them to obtain a grooved steel cage.

[0035] Compared to the traditional binding work that requires multiple people to complete, this utility model can make grooved steel cages by one person, saving time and effort.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A grooved steel cage forming jig, characterized in that: The system includes a jig, a bracket, clamps, a screw, a hydraulic cylinder, and a pressure head. The rectangular frame bracket is placed on the top left side of the upper frame of the jig, and the bracket presses against both ends of the straight steel bar placed on the jig. Two clamps hold the bracket and the jig from the front and rear ends of the upper frame of the jig, respectively. The screw is threaded to the top of the clamp, and the top end of the screw abuts against the top surface of the upper frame of the bracket, fixing the bracket to the jig. The bottoms of two identical hydraulic cylinders are fixedly connected to the front and rear ends of the bracket and between the two clamps, respectively, and the extension and retraction direction is vertical. The pressure head is fixedly connected to the end of the extension rod of the hydraulic cylinder.

2. The grooved steel cage forming jig according to claim 1, characterized in that: The jig is a quadrangular prism frame consisting of an upper frame, a lower frame, and support rods. The size of the jig is slightly larger than the size of the grooved steel bar to be formed. A folding rod is fixedly connected to the inner side of the front and rear ends of the upper frame of the jig. The top of the folding rod near the pressure head is an arc surface.

3. The grooved steel cage forming jig according to claim 1, characterized in that: The support is a rectangular frame. Circular grooves that penetrate the side walls of the support and are aligned with the same straight line are opened on the side walls at both the front and rear ends of the support to insert straight reinforcing bars.

4. The grooved steel cage forming jig according to claim 1, characterized in that: The bottom of the hydraulic cylinder housing is fixed to the upper frame of the bracket by a Z-shaped plate. The inner width of the Z-shaped plate is greater than the width of the pressure head, which is used to accommodate the pressure head in its initial position.

5. The grooved steel cage forming jig according to claim 1, characterized in that: The clamp has a U-shaped structure. The inner width of the clamp is greater than the total thickness of the upper frame of the jig and the support. The bottom end face of the clamp abuts against the bottom end face of the upper frame of the jig, and the top end of the screw abuts against the top end face of the upper frame of the support to restrict the slippage of the straight steel bar and fix the straight steel bar.

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