Steel bar cutting device

Abstract

The utility model discloses a steel bar cutting-off device which comprises a cutting-off head frame body, a sliding seat and a cutting-off tool. Two parallel track shafts are arranged on the cutting head frame body, the sliding seat is arranged on the two track shafts in a sliding manner, and the cutting tool is fixed on the sliding seat; the cut-off tool comprises a cylinder body and a piston rod connected with the cylinder body through a piston, and a blade is arranged at the front end of the piston rod; the front end of the piston rod is inclined downwards, and the cut reinforcing steel bar can smoothly fall into the material receiving groove at the preset position. The supporting mode of the cutting-off head is optimized, the impact force in the pushing process of the steel bar cutting-off head is reduced, the torque in the cutting-off pushing process is reasonably balanced, equipment runs stably, and the service life is prolonged; in addition, the front end of the piston rod is inclined downwards, so that the steel bar can fall into a preset track smoothly after being cut off, and accumulation of machining scraps and the like can be prevented.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of steel bar processing, in particular to a steel bar cutting device. BACKGROUND

[0002] In the steel bar processing process, it is often necessary to cut the steel bar to a predetermined length, and the steel bar cutting device is specially designed for this purpose. When the steel bar is cut, the steel bar is pushed to the predetermined length by a pushing device, and then cut by a cutting device. When the steel bar is cut during the pushing process, the cutting device needs to be pushed synchronously as a whole. During this process, the cutting device will generate a certain impact force, and the size of the impact force is directly related to the overall mass of the cutting device. The greater the mass, the greater the impact force, which may affect the cutting effect and the subsequent processing of the steel bar. At the same time, the cutting process will also generate a certain torque on the support seat. The size of the torque is not only related to the design of the cutting device, but also affected by the support method. A reasonable support method can reduce the torque and improve the stability of the cutting process, thereby prolonging the service life of the equipment.

[0003] In the past, when the cutting head is placed horizontally as a whole, the cut steel bar often cannot be normally ejected and fall onto the specified track, which is mainly caused by the unreasonable impact force, torque and support method during the cutting process. The irregular ejection of the steel bar will affect the subsequent processing flow and reduce the production efficiency. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the application provides a steel bar cutting device to solve the technical problems of irregular falling and large torque on the support seat during the cutting of the steel bar.

[0005] To achieve the above purpose, the application provides a steel bar cutting device, which comprises a cutting head frame body, a sliding seat and a cutting knife.

[0006] The cutting knife is arranged on the sliding seat, and the cutting knife comprises a cylinder body and a piston rod connected with the cylinder body through a piston. The front end of the piston rod is provided with a blade. The cylinder body drives the piston rod to extend or retract through hydraulic oil, so that the blade cuts the steel bar.

[0007] The cutting head frame body comprises a U-shaped support, and two parallel track shafts are arranged on the U-shaped support. The extension direction of the two track shafts is parallel to the direction of the steel bar pushing. The sliding seat comprises a mounting plate and two sliding sleeves. The two sliding sleeves are fixedly arranged at the front end and the rear end of the mounting plate. The sliding seat is slidably connected with the two track shafts through the two sliding sleeves, and the sliding sleeve at the front end of the mounting plate is lower than the other sliding sleeve, so that the sliding seat and the front end of the piston rod are inclined downward.

[0008] Further, the mounting plate is an L-shaped plate, comprising a horizontal bottom plate and a vertical plate arranged at the end of the bottom plate, and an arc-shaped slot is arranged on the vertical plate and matched with the outer shape of the cylinder body.

[0009] Further, an inclined guide plate is arranged at the front end of the U-shaped support, and the inclined guide plate is used to guide the cut-off steel bars into a steel bar collecting groove.

[0010] Further, the extension directions of the two track shafts are perpendicular to the extension direction of the piston rod.

[0011] Further, the cutting knife further comprises a knife seat fixedly arranged at the front end of the cylinder body, and a steel bar guide sleeve is arranged on the knife seat, the steel bar passes through the steel bar guide sleeve to the front of the blade, and the blade is movable relative to the steel bar guide sleeve to cut off the steel bar.

[0012] Further, a square-shaped sliding groove is arranged on the knife seat, the blade is a square-shaped blade, the square-shaped blade slides along the square-shaped sliding groove, and the side surface of the square-shaped blade abuts against the square-shaped sliding groove.

[0013] Further, the cutting knife further comprises a compression spring and a spring cap;

[0014] The spring cap is arranged at the tail end of the piston rod, the compression spring is sleeved on the outer periphery of the piston rod, and the tail end of the piston rod is connected with the spring cap.

[0015] Further, the spring cap is provided with a cap nut, and the cap nut is threadedly connected with the tail end of the piston rod.

[0016] Different from the prior art, the technical scheme improves the matching relationship between the sliding seat and the cutting head frame body, optimizes the supporting mode of the cutting head, reduces the impact force in the pushing process of the steel bar cutting head, reasonably balances the torque in the cutting pushing process, makes the equipment run stably, and prolongs the service life; and the front end of the piston rod is inclined downward, so that the steel bar can smoothly fall into the predetermined track after being cut off, and the accumulation of machining scraps and the like can be prevented.

[0017] The above-mentioned content related to the utility model is only a summary of the technical scheme of the application, in order to enable those skilled in the art to more clearly understand the technical scheme of the application, and then can be implemented according to the content recorded in the specification and the drawings, and in order to enable the above-mentioned purpose and other purposes, characteristics and advantages of the application to be more easily understood, the following is described in combination with the specific embodiments of the application and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are only used to show the principles, implementation manners, applications, characteristics and effects of the specific embodiments and other related contents of the utility model, and cannot be considered as a limitation of the application.

[0019] In the drawings:

[0020] Figure 1 The structural schematic view of the reinforcing steel bar cutting device is described for the specific embodiment;

[0021] Figure 2 The structural schematic view of the reinforcing steel bar cutting device is described for the specific embodiment;

[0022] Figure 3 The structural schematic view of the cutting head frame body (hidden track shaft) is described for the specific embodiment;

[0023] Figure 4 The structural schematic view of the sliding seat is described for the specific embodiment;

[0024] Figure 5 For Figure 1 The local enlarged view of part A in the middle;

[0025] The reference signs involved in the above drawings are explained as follows:

[0026] 1, cutting head frame body; 2, sliding seat; 3, cutting knife;

[0027] 11, track shaft; 13, material collecting groove; 10, U-shaped support; 12, inclined material guide plate; 101, mounting hole;

[0028] 21, sliding sleeve; 22, mounting plate; 23, arc-shaped groove; 221, bottom plate; 222, vertical plate;

[0029] 31, cylinder body; 32, piston rod; 33, blade; 34, reinforcing steel bar guide sleeve; 35, compression spring; 36, spring cap cover; 37, knife seat; 371, shaped sliding groove; Specific embodiment

[0030] In order to describe the possible application scenarios, technical principles, specific schemes that can be implemented, purposes and effects that can be achieved and the like of the application in detail, the following will be described in detail in combination with the specific embodiments listed and the drawings. The embodiments recorded in the present text are only used to more clearly illustrate the technical schemes of the application, and therefore only serve as examples, and cannot be considered as a limitation of the protection scope of the application.

[0031] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0032] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0033] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0034] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0035] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar open-ended expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0036] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0037] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0038] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0039] Please see Figures 1 to 5 This embodiment provides a rebar cutting device. This rebar cutting device is used to cut rebars to the required length for further processing. For example... Figure 1 As shown, the rebar cutting device includes: a cutting head frame 1, a slide 2, and a cutting blade 3.

[0040] The cutting head frame 1 is provided with two parallel track shafts 11, and the slide block 2 is slidably mounted on the two track shafts 11. The cutting blade 3 is fixed on the slide block 2. The cutting blade 3 includes a cylinder 31 and a piston rod 32 connected to the cylinder 31 via a piston. The front end of the piston rod 32 is provided with a blade 33; preferably, the blade 33 is a square blade 33. In other embodiments, the blade 33 can also be a blade 33 of other shapes used for cutting reinforcing bars. The extending direction of the two track shafts 11 is parallel to the direction of reinforcing bar propulsion, and the position of the two track shafts 11 is set such that the front track shaft 11 is lower than the rear track shaft 11, so that the front end of the piston rod 32 is inclined downwards, and the cut reinforcing bar can fall smoothly into the receiving trough 13 at a predetermined position. The downward inclination angle of the front end of the piston rod 32 is 10 degrees to 40 degrees.

[0041] The cylinder 31 drives the piston rod 32 to extend and retract via hydraulic oil, thereby enabling the blade 33 to cut the reinforcing steel. An oil passage is provided between the piston rod 32 and the cylinder 31, allowing hydraulic oil from the hydraulic system to drive the piston rod 32 to reciprocate, thus driving the blade 33 to perform the reinforcing steel cutting action.

[0042] like Figure 1 and Figure 2 As shown, in this embodiment, the front end of the piston rod 32 is inclined downwards. That is, when the reinforcing bar is cut, the blade 33 located at the front end of the piston rod 32 is pushed downwards at an angle, so the reinforcing bar is also cut downwards at an angle. Therefore, under the action of gravity, the cut reinforcing bar will fall forward into the predetermined collection trough 13, which facilitates the collection and sorting of the reinforcing bar and can improve the processing efficiency of the reinforcing bar.

[0043] The cutting blade 3 also includes a blade holder 37, which is fixedly mounted on the front end of the cylinder 31. A rebar guide sleeve 34 is provided on the blade holder. The rebar passes through the rebar guide sleeve 34 to the front of the blade 33. The blade 33 can move relative to the rebar guide sleeve 34 to cut the rebar. The blade 33 is located on one side of the blade holder, while the rebar guide sleeve 34 is located on the opposite side of the blade holder. After the rebar passes through the rebar guide sleeve 34, the piston rod 32 pushes the square blade 33 to complete the rebar cutting process. During rebar cutting, the rebar is pushed by a rebar pushing device after passing through the rebar guide sleeve 34. The rebar pushing device and the rebar cutting device operate in coordination. After the rebar pushing device pushes a preset length of rebar, the rebar cutting device cuts the rebar.

[0044] like Figure 5 As shown, in this embodiment, the blade holder 37 has an i-shaped groove 371 on its side. When cutting reinforcing bars, the square blade is pushed by the piston rod to slide along the i-shaped groove 371, that is, the direction of extension of the i-shaped groove 371 is consistent with the extension and retraction direction of the piston rod. The side of the square blade abuts against the i-shaped groove. Therefore, in this embodiment, the i-shaped groove 371 can provide lateral support force for the square blade, making the advancement of the square blade more stable when cutting reinforcing bars and reducing the probability of lateral breakage of the square blade.

[0045] like Figure 1 and Figure 2 As shown, the cutting blade 3 also includes a compression spring 35 and a spring cap 36. The spring cap 36 is disposed at the tail end of the piston rod 32, and the compression spring 35 is sleeved on the outer periphery of the piston rod 32 and connected to the tail end of the piston rod 32 through the spring cap 36. One end of the compression spring 35 abuts against the spring cap 36, and the other end of the compression spring 35 abuts against the cylinder body 31. When the piston rod 32 advances forward to cut the reinforcing bar, the compression spring 35 is compressed and contracted, and when the piston rod 32 is retracted, the elastic force of the compression spring 35 can push it back.

[0046] The spring cap 36 is provided with a cap nut, which is threaded to the tail end of the piston rod 32. The spring force of the compression spring 35 can be adjusted by adjusting the relative position of the cap nut and the piston rod 32.

[0047] The track shaft 11 can be a circular track with a circular cross-section. In other embodiments, the track shaft 11 can also be an I-shaped track, a square track, or other tracks with other cross-sectional shapes. Figure 3 As shown, the cutting head frame 1 is provided with mounting holes 101 for mounting the track shaft 11.

[0048] like Figure 3 As shown, the cutting head frame 1 includes a U-shaped support 10 and an inclined guide plate 12. Two track shafts 11 are disposed on the U-shaped support 10, and the inclined guide plate 12 is inclinedly disposed in front of the U-shaped support 10. The inclined guide plate 12 is used to guide the cut steel bars into the receiving trough 13. Therefore, the inclined guide plate 12 can guide the cut steel bars to the receiving trough 13 located at its bottom.

[0049] Furthermore, in this embodiment, the rebar cutting device adopts a lightweight overall design, and the improved support method and inclined layout of the cutting blade 3 can reduce the overall impact force during the cutting head's advancement process and reasonably balance the torque during this process. Figure 4 As shown, the slide 2 includes an L-shaped mounting plate 22, which includes a base plate 221 and a vertical plate 222 disposed at the end of the base plate 221. The vertical plate 222 has an arc-shaped groove 23 adapted to the outer circumference of the cylinder body 31. The cylinder body 31 is mounted on the mounting plate 22, and the arc-shaped groove 23 abuts against the outer circumference of the cylinder body 31. The vertical plate 222 and the base plate 221 can be fixed by welding, or the vertical plate 222 and the base plate 221 can be formed by bending a single steel plate. The cylinder body 31 can also be fixed to the vertical plate 222 by bolts or other fasteners. Sliding sleeves 21 are respectively provided at the front and rear ends of the mounting plate 22. The slide 2 is slidably connected to two track shafts 11 through two sliding sleeves 21, and the sliding sleeve 21 at the front end of the mounting plate 22 is lower than the other sliding sleeve 21, thereby tilting the slide 2. The shape of the sliding sleeve 21 is adapted to the shape of the track, such as... Figure 2 and Figure 4 As shown, in this embodiment, the sliding sleeve 21 is a circular sleeve. The sliding sleeve 21 can be fixedly connected to the mounting plate 22 by welding. In other embodiments, the sliding sleeve 21 can also be fixedly connected to the mounting plate 22 by fasteners such as bolts.

[0050] In this embodiment, the slide block 2 includes only an L-shaped mounting plate 22 and two sliding sleeves 21, greatly reducing the overall mass of the rebar cutting device. Furthermore, the extension direction of the two track shafts 11 is the same as the direction of rebar propulsion and perpendicular to the extension / retraction direction of the piston rod 32. The torque generated during cutting is evenly distributed across the two track shafts 11, thus reasonably balancing the torque during the cutting process.

[0051] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A reinforcing bar cutting device characterised by, The utility model relates to a cutting head frame body, slide and cutting knife, the cutting knife is arranged on the slide, and the cutting knife includes cylinder and the piston rod that is connected with the cylinder through the piston, the front end of the piston rod is provided with the blade, wherein the cylinder drives the piston rod to retract through the hydraulic oil to make the blade cut the reinforcing bar, the cutting head frame body includes the U-shaped support, two parallel track shafts are arranged on the U-shaped support, the extension direction of two track shafts is parallel with the direction of reinforcing bar propulsion, the slide includes the mounting plate and two slide bushings, two slide bushings are fixedly arranged on the front end and rear end of the mounting plate, the slide is slidably connected with two track shafts through two slide bushings, and the slide bushing located at the front end of the mounting plate is lower than the other slide bushing, so that the front end of the slide and the piston rod is inclinedly arranged downward. The mounting plate is L-shaped plate, including the horizontal bottom plate and the vertical stand plate that is arranged on the end of the bottom plate, the arc-shaped groove that is matched with the outer shape of the cylinder is arranged on the stand plate, the cylinder is installed on the mounting plate, and the arc-shaped groove is matched with the outer periphery of the cylinder. The front end of the U-shaped support is provided with the inclined guide plate, and the inclined guide plate is used for guiding the cut reinforcing bar into the reinforcing bar collecting groove. The extension direction of two track shafts is perpendicular to the retracting direction of the piston rod.

2. The rebar shearing device of claim 1, wherein, The cutting knife further includes a knife seat fixedly arranged at the front end of the cylinder, a reinforcing bar guide sleeve arranged on the knife seat, a reinforcing bar passing through the reinforcing bar guide sleeve to the front of the blade, and the blade being movable relative to the reinforcing bar guide sleeve to cut the reinforcing bar.

3. The rebar shearing device of claim 1, wherein, The knife seat is provided with a U-shaped sliding groove, the blade is a square blade, the square blade slides along the U-shaped sliding groove, and the side surface of the square blade is matched with the U-shaped sliding groove.

4. The rebar shearing device of claim 1, wherein, The cutting knife further includes a compression spring and a spring cap, the spring cap is arranged at the tail end of the piston rod, the compression spring is sleeved on the outer periphery of the piston rod, and the tail end of the piston rod is connected with the spring cap.

5. The rebar shearing device of claim 1, wherein, The spring cap is provided with a cap nut threadedly connected with the tail end of the piston rod.

6. The bar shearing apparatus of claim 5 wherein, ​ 7. The rebar shearing device of claim 1, wherein, ​ 8. The bar shearing apparatus of claim 7 wherein, ​

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