KR200413095Y1 - Portable hydraulic iron cutter - Google Patents

Abstract

The present invention relates to a portable hydraulic rebar cutting machine.

The present invention has a housing 50 is formed to protrude a plurality of ribs to increase the strength of the outside for this purpose; An oil circulation part 55 provided in the inner working groove of the housing to circulate oil by a constant pressure; A piston (60) inserted into a piston operating hole of the housing and having a groove in a return valve operating hole and an outer circumferential surface thereof at a position of one head; A hydraulic adjustment unit 70 fitted to the return valve operation hole to smoothly adjust the hydraulic amount by the operation of the return valve; It is provided on one side of the housing and the outside of the piston, the flow path and two cylinder block 80 is provided with two pairs of two;

The present invention configured as described above includes a housing having an oil circulation portion, a sloped surface, and ribs, a piston having a hydraulic control portion, and a cylinder block having five ports, thereby improving cutting capacity of the rebar cutter, and also repairing. It provides the effect of easy, trouble-free, etc., which greatly improves the quality and reliability of the product, so that consumers can plant a good image.

 Housing, oil circulation section, cylinder block, hydraulic control section, rebar cutting machine.

Description

Portable Hydraulic Rebar Cutting Machine {PORTABLE HYDRAULIC IRON CUTTER}

Figure 1 (a) is a cross-sectional view of the entire configuration of a conventional rebar cutting machine,

        (b) confirms the main part before the piston applied to the conventional rebar cutting machine is operated.

           Large cross section,

        (c) is after the piston applied to the conventional rebar cutting machine is operated to one side

           It is an enlarged sectional view of the main part.

2 is an overall configuration diagram of a portable hydraulic rebar cutting machine applied to the present invention,

        A partial cross section before the stone is working.

3 is an overall configuration diagram of a portable hydraulic rebar cutting machine applied to the present invention,

        Partial cross section after the stone has been acted on one side.

Figure 4 (a) is a perspective view of a housing applied to the present invention rebar cutting machine,

        (b) is a side view of the housing applied to the present invention rebar cutting machine.

Figure 5 (a) is a state in which the return valve is disassembled in the piston of the present invention rebar cutting machine

           Shown is a perspective view,

        (b) shows the return valve coupled to the piston of the present invention rebar cutter

           It is a perspective view shown.

Figure 6 (a) shows a state before the return valve applied to the present invention is operated

            It is the main part enlarged section,

        (b) shows the state in which the return valve applied to the present invention is pushed to one side

            It is an enlarged sectional view of the main part.

7 (a) is a perspective view of a cylinder block applied to the present invention rebar cutting machine,

        (b) is a rear view of the cylinder block applied to the present invention rebar cutting machine.

<Explanation of symbols for the main parts of the drawings>

50: housing 51: inclined surface

55: oil circulation part 60: piston

70: hydraulic control unit 80: cylinder block

The present invention relates to a portable hydraulic rebar cutting machine, and more particularly, a cutting capacity of a rebar cutting machine having a housing having an oil circulation portion, a sloped surface, ribs, a piston having a hydraulic control portion, and a cylinder block having five ports. It is possible to improve, to provide easy maintenance, trouble-free effects, such as to significantly improve the quality and reliability of the product to allow consumers to plant a good image.

As is well known, the portable hydraulic rebar cutting machine is easy to carry and has excellent cutting ability, and is used for cutting rebars in various construction sites as well as for cutting and removing rebars of various disaster sites.

On the other hand, a number of useful rebar cutting machine as described above has been applied and registered in the prior art, among which utility model registration No. 0161960 (Application No. 1997-0027748) (name: rebar cutting machine) has been registered.

That is, the technical configuration of the conventional reinforcing bar cutting machine, the movable cutter (3 ') mounted to the fixed cutter (3) and the piston (4) on the front of the housing (1) with the handle (2) is formed, the housing ( Inside the rear side of 1), a centrifugal plunger pump 15 composed of an armature set 11 and a camshaft 12 is provided, and a piston 4 is connected to a spring 5 on a cylinder block 9 on the front side thereof. The fluid storage chamber 17, the high pressure pump chamber 14, and the high pressure path 13 which are piled up and reciprocate the piston 4 by the operation of the centrifugal plunger pump 15 are provided, and the upper center of the piston 4 is provided. Between the inside and the cylinder block 9, a return valve 6 for discharge is installed to connect with the discharge path 8 installed in the center of the nozzle 7 and the discharge path 8 'installed in the cylinder block 9, On the lower side of the cylinder block 9, a separate discharge path for discharging the fluid filled in the space in which the spring 5 of the piston 4 is installed is constituted. , The return valve 6 is inserted into the discharge path 8 installed in the center of the nozzle 7 fixed to the cylinder block 9, and slides by the gate 18 installed on the upper end of the piston 4. A return valve 6 having a plurality of distribution grooves 21 formed on an outer circumferential surface of the piston 4 is installed to open and close, and the piston 1 is moved forward. It is configured to open the discharge path 8 while contacting the contact portion.

Rebar cutting machine of the prior art as described above operates the cutter with a centrifugal plunger pump and install a return valve and discharge path therein to operate the cutter by circulating the fluid filled inside without supplying oil from the outside The present invention relates to a rebar cutting machine that can be used more conveniently and efficiently by minimizing the size of the cutting machine.

However, the above-described prior art has caused a number of problems.

That is, the conventional housing is formed by horizontally falling portion after the reinforcing bar is formed so that the cut reinforcing bar does not immediately fall to the outside and eventually push forward the front of the housing while moving forward by the force of the moving cutter to continue to break There was a big problem with this.

In addition, since the conventional housing does not have a technical configuration such as a reinforcing rib on the outside, the strength is weak, so that a problem that is easily cut even by a weak impact when used for a long time occurs.

In addition, since the oil circulation part of the prior art is made of a rubber tube, a problem of being torn and unusable when used for a long time due to a contraction-relaxing action, and a problem of being easily deformed by oil and heat has occurred.

In addition, since the piston of the prior art does not have a hydraulic control part, the stroke length of the piston is long, and the speed also takes about 2 to 3 seconds, resulting in a problem that requires a long working time. It became.

The present invention has been made to solve the above problems of the prior art, and includes a housing having an oil circulation portion, an inclined surface and a rib, a piston having a hydraulic control portion, and a cylinder block having five ports. The first purpose, the second purpose is to improve the strength of the housing by the above-described technical configuration, to provide a tube-free oil circulating unit free of trouble, and the third purpose is to provide a piston with a hydraulic control unit The stroke length is short and the speed is about 0.7 seconds, so the working time can be shortened. The fourth objective is to improve the cutting capacity of the rebar cutter by the above technical action and to make it easy to repair. The fifth objective is to significantly improve the quality and reliability of the product, so that consumers can plant a good image. Provides a portable hydraulic rebar cutter.

In order to achieve the above object, the present invention is easy to carry and has excellent cutting ability, the rebar cutting machine used to cut reinforcing bars in various construction sites, etc., comprising: a housing in which a plurality of ribs protrude so as to increase external strength; An oil circulation unit provided in the inner working groove of the housing to circulate oil by a constant pressure; A piston which is inserted into a piston operating hole of the housing and has a groove formed on a return valve operating hole and an outer circumferential surface thereof at one side of the head; A hydraulic control unit fitted to the return valve operation hole and smoothly adjusting the hydraulic amount by the operation of the return valve; It is provided on one side of the housing and the outside of the piston, and the flow path and two provide a portable hydraulic reinforcing steel cutting machine, characterized in that it is provided with a pair of cylinder blocks having five ports.

Hereinafter, described in detail with reference to the accompanying drawings a preferred embodiment of the present invention for achieving this purpose are as follows.

The portable hydraulic rebar cutter applied to the present invention is configured as shown in FIGS. 2 to 7.

In the following description of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

The following terms are terms set in consideration of functions in the present invention, which may vary depending on the intention or custom of the producer, and the definitions should be made based on the contents throughout the present specification.

The technical configuration of the present invention is largely composed of a housing 50 having an oil circulation portion, an inclined surface and ribs, a piston 60 having a hydraulic control portion 70, and a cylinder block 80 having five ports. As will be described in more detail below.

First, the present invention is provided with a housing 50 formed to protrude a plurality of ribs 52 so as to increase the external strength as shown in Figures 2 to 4.

At this time, the inclined surface 51 of the "∝" angle (about 5 to 10 degrees) so that the reinforcing bars (not shown in the figure) is automatically cut and then rolled on the upper fixed cutter 58 of the housing 50. Is formed.

In addition, the housing 50 has a first spring mounting groove 52 in which the first spring 64 is installed, a piston operating hole 53 in which the piston 60 is installed, and a rebar mounting groove 50a for placing and cutting the reinforcing bars. Of course, it is provided.

The present invention is also provided with an oil circulation portion 55 is provided in the inner working groove 54 of the housing 50 to circulate the oil by a constant pressure.

That is, the oil circulating part 55 has a second spring 57 built-in in the working groove 54, and one end of the second spring 57 is provided with a packing 56a on an outer circumferential surface thereof. Holder 56 is fitted.

In addition, the present invention is fitted in the piston operating hole 53 of the housing 50, the return valve operating hole 61 and the piston 60 is formed in the outer peripheral surface thereof in place of one head is provided with a piston (60).

And the subject innovation is fitted into the return valve operation hole 61, the hydraulic control unit 70 for smoothly adjusting the hydraulic amount by the operation of the return valve 71 is provided.

When the hydraulic control unit 70 is described in more detail, a through hole 76 into which the fourth spring 77 is fitted at one side of the return valve 71 is provided and an outer circumferential surface thereof is in communication with the through hole 76 in length. The long hole 72 is formed to extend in the direction, the third spring 78 is installed on the outer peripheral surface of the return valve (71). In addition, a pin 77a is formed at the tip of the fourth spring 77 so that the fourth spring 77 coupled to the return valve 71 is not easily separated, and the return valve 71 is inserted into the pin 77a. The insertion hole 74 is formed, the fastening hole 73 is formed so as to communicate with the insertion hole 74, and the fixing bolt (75) to be fixed by pressing the pin (77a) in the fastening hole (73) Is fastened.

In addition, the present invention is provided on one side of the housing 50 and the outside of the piston 60, the cylinder block 80 is provided with a flow path 82 and two pairs of five ports 81. At this time, the cylinder block 80 is provided with an emergency valve 82 for introducing and discharging oil in an emergency.

In the drawing, reference numeral 63 is a moving cutter, 90 is a pump shaft, and 91 is a handle.

Meanwhile, the present invention may be variously modified and may take various forms in applying the above components.

And it is to be understood that the present invention is not limited to the specific forms mentioned in the above description, but rather includes all modifications, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims. It should be understood that.

Referring to the effect of the present invention portable hydraulic rebar cutting machine configured as described above are as follows.

First, the present invention operates the cutter with a centrifugal plunger pump like a conventional rebar cutter and installs a return valve and a discharge path therein so that the fluid filled inside circulates without supplying oil from the outside to operate the cutter. It is the same, but the characteristics of the following technical operation effects.

That is, FIG. 2 is a state diagram before the piston 60 applied to the present invention is operated. In this state, the packing holder 56 is pushed into the operating groove 54. 3 is a state in which the piston 60 applied to the present invention is operated by moving to one side, and in this state, the packing holder 56 is not pushed to one side.

In more detail, when the operator presses a switch provided on the handle 91 to apply power, the pump shaft 90 is driven to operate the present invention portable hydraulic rebar cutting machine. When the piston 60 is introduced into the cylinder block 80, the piston 60 moves as shown in Fig. 2 to easily cut the reinforcing bar located in the rebar mounting groove 50a.

When the rebar is cut by the above operation, the cut rebar is dropped directly to the floor by the inclined surface 51 formed in the housing 50, and thus the cutting part is formed horizontally after the rebar is cut as in the prior art. Since the reinforcing bar is not immediately dropped to the outside, it is possible to solve the big problem of pushing forward the front of the housing 50 while breaking forward by the force of the moving cutter 63 which continues to move forward.

In addition, a plurality of ribs 52 protrude from the outer circumferential surface of the housing 50 to increase the external strength.

And the present invention is to ensure that there is no trouble with the oil circulation section 55 without the tube.

That is, the packing spring 56 is moved to one side by the oil introduced into the working groove 54 as shown in FIG. 2 to compress the second spring 57, on the contrary, as shown in FIG. When the oil is discharged through the flow path 82 in the), the packing holder 56 is again placed in the initial state by the repulsive force of the second spring (57). At this time, the packing 56a installed on the outside of the packing holder 56 prevents leakage of oil in the operation groove 54.

According to the technical action as described above, the problem that the conventional rubber tube can not be torn and broken in use for a long time due to the contraction and relaxation action of the rubber tube, and the problem of being easily deformed by oil and heat can be solved at once.

In addition, the present invention is provided with a hydraulic control unit 70 in the piston 60, the stroke length of the piston 60 is short, the speed is also required to be short as about 0.7 seconds to shorten the working time and as a result, this is a rebar cutting machine It is possible to improve the cutting ability of, and to provide an effect that is easy to repair.

That is, the oil introduced into the cylinder block 80 moves the piston 60 to move as shown in FIG. 3. At this time, when the fourth spring 77 is fitted to the inlet of the piston operating hole 53, the oil is compressed. On the contrary, the return valve 71 pushed to one side by the repulsive force is slightly moved to the other side again. Then, as shown in FIG. 6 (b), the oil in the cylinder block 80 is introduced into the first spring mounting groove 52 through the long hole 72 and the through hole 76, and as a result, the piston 60 is moved to one side. Is moved to the other side again, and when the return valve 71 is moved to the other side, a small amount of oil is first discharged through the groove 62 formed in the return valve operation hole 61 and the second return. A large amount of oil is discharged through the valve operating hole 62. The piston 60 is moved to the other side by the repulsive force of the first spring 64.

In addition, the present invention operates the fourth spring 77 by bending the fixing pin 75 by fastening the front end pin 77a of the fourth spring 77 protruding into the fastening hole 73 through the insertion hole 74. It is not easy to get out of the process.

The present invention also uses a cylinder block 80 having five ports 81 as shown in Figs. 2, 3 and 7 to increase the speed and increase the cutting capacity by doubling the force. Of course.

That is, when oil flows into the cylinder block 80 at the same time through five ports 81, the speed of the piston 60 (about 0.7 seconds) can be quickly actuated, and the force is doubled and cut. This improves the ability and, consequently, the effect of shortening the working time.

In addition, the present invention is provided with an emergency valve 82 in the cylinder block 80 to provide the effect of introducing and discharging oil in an emergency.

As described in detail above, the present invention includes a housing having an oil circulation portion, an inclined surface, and ribs, a piston having a hydraulic control portion, and a cylinder block having five ports. The oil circulation part without the tube is provided so that there is no trouble, and the hydraulic control part is provided on the piston to shorten the working distance of the piston and the speed as short as about 0.7 seconds. By the above technical action, the cutting ability of the rebar cutting machine can be improved, and the repair is easy. As a result, it is a very useful design that greatly improves the quality and reliability of the product so that consumers can plant a good image. will be.

Claims (6)

In the rebar cutting machine which is easy to carry and has excellent cutting ability, it is used to cut the rebar to the required length in various construction sites, A housing 50 in which a plurality of ribs protrude so as to increase external strength; An oil circulation part 55 provided in the inner working groove of the housing to circulate oil by a constant pressure; A piston (60) inserted into a piston operating hole of the housing and having a groove in a return valve operating hole and an outer circumferential surface thereof at a position of one head; A hydraulic adjustment unit 70 fitted to the return valve operation hole to smoothly adjust the hydraulic amount by the operation of the return valve; And a cylinder block (80) provided at one side of the housing and at an outside of the piston, each having five ports each having a flow path and two pairs. According to claim 1, Portable hydraulic rebar cutter, characterized in that the inclined surface 51 of the "∝" angle is formed in the upper fixed cutter portion of the housing 50 is automatically rolled off after cutting. According to claim 1, The oil circulation portion 55, A portable hydraulic rebar cutting machine, characterized in that the second spring (57) is installed inside the working groove, one end of the second spring is fitted with a packing holder 56 is provided on the outer circumferential surface. According to claim 1, The hydraulic control unit 70, On one side of the return valve 71 is provided with a through hole 76 into which the fourth spring 77 is fitted, and on the outer circumferential surface thereof, a long hole 72 formed in the longitudinal direction is formed to communicate with the through hole. Portable hydraulic rebar cutter, characterized in that the third spring 78 is installed on the outer peripheral surface. The method of claim 4 wherein A pin 77a is formed at the tip of the fourth spring so that the fourth spring coupled to the return valve 71 is not easily separated, and an insertion hole 74 is formed in the return valve so that the pin is inserted. Portable hydraulic rebar cutting machine characterized in that the fastening hole (73) is formed in communication with the insertion hole and the fixing bolt (75) is fastened to the fastening hole by pressing the pin. According to claim 1, The cylinder block (80) is a portable hydraulic rebar cutting machine characterized in that the emergency valve (82) for introducing and discharging oil in the emergency is further provided.

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