Hydraulic two-end hoop bending machine

Abstract

The utility model provides a hydraulic two-end hoop bending machine which comprises a support and a hoop bending head installed on the support, the hoop bending head is a hydraulic hoop bending head, an oil cylinder of the hydraulic hoop bending head is communicated with an oil tank through a hydraulic control element and a hydraulic pump, and the hydraulic control element comprises an oil path block and an oil path control valve. The oil way control valve is divided into a single-head valve for controlling the oil outlet speed and a double-head valve for controlling oil inlet and oil return, and two sets of oil holes corresponding to the single-head valve and the double-head valve respectively are formed in the oil way block. The power source of the hoop bending head is the hydraulic pump, and even if the hoop bending head needs to be started and stopped in the hoop bending operation process, a medium for transmitting power is hydraulic oil, so that hard impact on a motor can be effectively reduced, the service life is prolonged, and the whole hoop bending head can normally and stably work. In addition, the single-head valve for controlling the oil outlet speed is additionally arranged, and the steel bar bending speed of the hoop bending head can be controlled by controlling the oil outlet speed, so that the hoop bending machine adapts to operation skills of different workers and is convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to a steel bar hoop bending machine manufacturing technical field, in particular to a hydraulic two-end hoop bending machine. BACKGROUND

[0002] At present, there are two kinds of steel bar hoop bending machines, one is single-end machine, and the other is double-end machine. Among them, the bending head of the single-end machine is generally driven by a motor or a hydraulic cylinder, and the bending head of the double-end machine in the existing market is basically driven by a motor. However, since the steel bar hoop bending operation needs to be continuously interrupted by the motor, such a motor is easily damaged by hard impact, and a relatively complex reduction mechanism is also needed to cooperate in the power transmission process of the motor. Once the reduction mechanism is selected, the bending speed cannot be changed during operation. SUMMARY

[0003] In view of the above shortcomings of the prior art, the utility model aims to provide a stable and reliable hydraulic two-end hoop bending machine.

[0004] The utility model realizes the above-mentioned purpose in this way:

[0005] A hydraulic two-end hoop bending machine comprises a support and a bending head mounted on the support, wherein the bending head is a hydraulic bending head, the oil cylinder of the hydraulic bending head is communicated with an oil tank through a hydraulic control element and a hydraulic pump, the hydraulic control element comprises an oil passage block and an oil passage control valve, the oil passage control valve comprises a single-end valve for controlling the oil outlet speed and a double-end valve for controlling the oil inlet and oil return, and two groups of oil holes corresponding to the single-end valve and the double-end valve are arranged on the oil passage block.

[0006] Among them, the oil holes corresponding to the double-end valve have four oil holes, namely an oil inlet hole, an oil supply hole, an oil return hole and an oil return hole, and the oil holes corresponding to the single-end valve have three oil holes, namely an oil inlet hole, an adjustment hole and an oil outlet hole. The oil supply hole is communicated with the oil inlet hole through an oil supply channel, the adjustment hole and the oil outlet hole are communicated with an oil outlet channel, and an oil amount adjusting bolt is mounted at the adjustment hole.

[0007] Among them, the hydraulic control element further comprises an oil overflow valve and a timing valve, and the oil overflow valve and the timing valve are mounted between the oil passage block and the double-end valve.

[0008] Among them, the support is a double-rail support, one rail of which is provided with a rack, the traction motor mounted on the sliding plate is engaged with the rack through a gear, and one bending head is mounted on the sliding plate.

[0009] Among them, the bottom of the sliding plate is provided with at least two side guards, and a load bearing wheel and a deviation preventing wheel are mounted on the side guards.

[0010] Among them, the side guards are three, and the deviation preventing wheel is mounted on the side faces of the adjacent two side guards.

[0011] Wherein, a steel bar support platform is installed at the rear of the bracket.

[0012] Among them, a steel support bracket is installed on the bracket, and the support bracket includes a base slidably connected to the bracket, a column is provided on the base, and a telescopic spring is sleeved on the column. The upper bracket is sleeved on the column through a sleeve below, and the telescopic spring is located between the sleeve and the base.

[0013] The beneficial effects of the present invention are as follows: Since the bending head of the present invention is a hydraulic bending head, the power source of the bending head is a hydraulic pump. Even if the bending head needs to be started and stopped during the bending operation, the medium for transmitting power is hydraulic oil. This can effectively reduce the hard impact on the motor, extend the service life, and ensure that the entire bending head can work normally and stably. In addition, the present invention adds a single-head valve to control the oil output speed. Controlling the oil output speed can control the speed at which the bending head bends the steel bars, thereby adapting to the operating skills of different workers and facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 It is a partial structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of another part of the structure of the utility model;

[0017] Figure 3 for Figure 2 A in the middle is an enlarged schematic diagram;

[0018] Figure 4 This is a structural diagram of the oil circuit block of the utility model;

[0019] Figure 5 yes Figure 2 Enlarged view of point B. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with examples and drawings. The schematic implementation scheme of the present invention and its description are only used to analyze the present invention and are not intended to limit the present invention.

[0021] Reference Figures 1 to 5The utility model provides a hydraulic two-end hoop bending machine, including support 1 and the hoop bending head 2 of installation on the support, the hoop bending head 2 is hydraulic hoop bending head, and the oil cylinder 3 of hydraulic hoop bending head is communicated with oil tank 6 through hydraulic control element 4, hydraulic pump 5, the hydraulic control element 4 includes oil passage block 41 and oil passage control valve 42, the oil passage control valve 42 is divided into single -end valve 421 of control oil -out speed and double -end valve 422 of control oil -in and oil -return, and is equipped with two groups of oil hole corresponding to single -end valve 421 and double -end valve 422 on oil passage block 41.The power source of hoop bending head 2 is hydraulic pump 5, even if in the process of hoop bending operation needs hydraulic pump 5 to open and stop, but the medium for power transmission is hydraulic oil, so it can effectively reduce the hard impact that motor receives, prolongs the service life, guarantees that the whole hoop bending head 2 can normally and stably work.In addition, the utility model increases single -end valve 421 of control oil -out speed, and the speed of bending steel bar of hoop bending head can be controlled to control the speed of oil -out, to adapt to the operating skills of different staff, facilitate use.

[0022] The oil hole corresponding to double -end valve 422 has four, and they are oil inlet hole 71, oil supply hole 72, return oil hole 73 and oil return hole 74, and the oil hole corresponding to single -end valve 421 has three, and they are oil inlet hole 75, adjusting hole 76 and oil outlet hole 77, oil supply hole 72 is communicated with oil inlet hole 75 through oil supply channel 8, adjusting hole 76 and oil outlet hole 77 are communicated with oil outlet channel 9, and oil quantity adjusting bolt 10 is installed at adjusting hole 76.Hydraulic pump 5 pumps the oil in oil tank 6 to oil inlet hole 71 through oil inlet channel 11, when double -end valve 422 is operated and is communicated with oil inlet hole 75 and oil supply hole 72, at this time, oil will flow from oil supply hole 72 to oil inlet hole 75 through oil supply channel 8, at this time, single -end valve 421 can adjust the oil through adjusting bolt 10 at adjusting hole 76 or directly communicate oil inlet hole 75 and oil outlet hole 77 to make oil flow through oil outlet channel 9 and supply oil to the oil cylinder 3 of hydraulic hoop bending head, so that the hydraulic hoop bending head bends the steel bar, the speed of bending the steel bar of hoop bending head can be controlled by adjusting bolt 10, if the bending speed of hoop is not needed to be adjusted, single -end valve 421 can be directly communicated with oil inlet hole 75 and oil outlet hole 77, so that oil can directly flow to the oil cylinder 3 of hydraulic hoop bending head without adjusting bolt 10, to realize the most rapid bending, wherein, the return oil hole 74 is a through hole penetrating through the oil passage block 41, one end is communicated with the hydraulic control element 4, and the other end is communicated with the oil tank 6.The oil in oil tank 6 flows through oil inlet hole 71 under the action of hydraulic pump 5, the oil of the hydraulic oil cylinder of hoop bending head flows through return oil channel 20 and return oil hole 73, and then flows to return oil hole 74 under the control of double -end valve 422, and then returns to oil tank 6.

[0023] In addition, the hydraulic control element 4 also includes an oil overflow valve 43 and a timing valve 44, which are installed between the oil block 41 and the double-headed valve 422. The oil overflow valve 43 effectively prevents damage to some components of the hydraulic system caused by excessive oil pressure; the timing valve 44 effectively ensures that the bending head can effectively clamp the steel bar when bending the steel bar, facilitating the bending operation of the other bending head.

[0024] Furthermore, the bracket 1 is a dual-track bracket, with a rack 12 mounted on one track. The rack 12 faces sideways, and a traction motor 14 mounted on a slide 13 engages with the rack 12 via a gear 15. A curved hoop is attached to the slide 13. Because the rack 12 faces sideways, the traction motor 14 can be mounted vertically on the slide 13. The gear 15, which engages with the rack 12, is mounted on the lower output shaft of the traction motor 14. When the traction motor 14 is in operation, it drives the slide 13 and its attached objects, such as the motor itself and the curved hoop. The other curved hoop 2 is typically fixed to one end of the bracket 1.

[0025] In order to ensure that the skateboard 13 moves smoothly along the bracket 1 and prevent it and its attachments from deviating during movement, the bottom of the skateboard 13 is provided with at least two side guard plates 131, and the guard plates 131 are installed with load-bearing wheels 16 and anti-deflection wheels 17, and the anti-deflection wheels 17 are in contact with the sides of the bracket.

[0026] Wherein, described guard plate 131 is three, and anti-deviation wheel 17 is installed on the side of two adjacent guard plates 131. Another one is only installed with load-bearing wheel 16 carrying slide plate 13 etc. and rolls along the surface of bracket 1.

[0027] In order to facilitate workers in bending steel bars, a steel bar support 30 is installed at the rear of the bracket 1. As long as the steel bars to be bent are placed on the steel bar support 30, workers can quickly move the steel bars to the bending hoop when bending the steel bars, which facilitates operation and improves production efficiency.

[0028] During the bending process of a relatively long steel bar, if the weight of the steel bar is carried solely by two bending hoops, the middle portion of the steel bar will be concave, which will affect the bending accuracy. To this end, the present invention installs a steel bar support bracket 18 on the bracket 1. The support bracket 18 includes a base 181 slidably connected to the bracket 1, a column 182 is provided on the base 181, and a telescopic spring 183 is sleeved on the column 182. An upper bracket 184 is sleeved on the column 182 via a sleeve 185 below, and the telescopic spring 183 is located between the sleeve 185 and the base 181. With the steel bar support bracket 18, the middle portion of the steel bar will not be concave, ensuring the bending accuracy. Moreover, the telescopic spring 183 between the sleeve 185 and the base 181 can effectively buffer the impact of gravity when the steel bar is placed on the support bracket 18, preventing the steel bar from being deformed. In addition, a roller 186 is installed on the upper bracket 184. When the steel bar moves on the support bracket 18, the roller 186 will rotate accordingly, reducing the friction of the steel bar movement and making it easier for workers to move the steel bar.

[0029] It can be understood that the above embodiments only express the preferred implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can be made, all of which fall within the scope of protection of the present invention. Therefore, all equivalent changes and modifications made to the claims and scope of the present invention should fall within the scope of coverage of the claims of the present invention.

Claims

1. A hydraulic two-end hoop bending machine, comprising a bracket (1) and a hoop bending head (2) mounted on the bracket, characterized in that: The bending hoop head (2) is a hydraulic bending hoop head. The oil cylinder (3) of the hydraulic bending hoop head is connected to the oil tank (6) through a hydraulic control element (4) and a hydraulic pump (5). The hydraulic control element (4) includes an oil circuit block (41) and an oil circuit control valve (42). The oil circuit control valve (42) is divided into a single-head valve (421) for controlling the oil output speed and a double-head valve (422) for controlling the oil inlet and return. The oil circuit block (41) is provided with two groups of oil holes corresponding to the single-head valve (421) and the double-head valve (422).

2. The hydraulic double-end hoop bender according to claim 1, characterized in that: There are four oil holes corresponding to the double-headed valve (422), namely, the oil inlet hole (71), the oil supply hole (72), the oil return hole (73) and the oil return hole (74). There are three oil holes corresponding to the single-headed valve (421), namely, the oil inlet hole (75), the regulating hole (76) and the oil outlet hole (77). The oil supply hole (72) is connected to the oil inlet hole (75) through the oil supply passage (8), and the regulating hole (76) and the oil outlet hole (77) are connected to the oil outlet passage (9). An oil quantity regulating bolt (10) is installed at the regulating hole (76).

3. A hydraulic double-end hoop bending machine according to claim 1 or 2, characterized in that The hydraulic control element (4) further comprises an oil overflow valve (43) and a timing valve (44), wherein the oil overflow valve (43) and the timing valve (44) are installed between the oil circuit block (41) and the double-head valve (422).

4. The hydraulic double-end hoop bender according to claim 1, characterized in that: The bracket (1) is a double-track bracket, wherein a rack (12) is provided on one track, the rack (12) faces the side, a traction motor (14) mounted on a slide (13) is engaged with the rack (12) via a gear, and a bent hoop head is mounted on the slide (13).

5. The hydraulic double-end hoop bender according to claim 4, characterized in that: The bottom of the slide plate (13) is provided with at least two side guard plates (131), and the guard plates (131) are mounted with load-bearing wheels (16) and anti-deflection wheels (17).

6. The hydraulic double-end hoop bender according to claim 5, characterized in that: The guard plates (131) are three in number, and the anti-deflection wheels (17) are mounted on the sides of two adjacent guard plates (131).

7. The hydraulic double-end hoop bender according to claim 1, characterized in that: A steel bar support platform (30) is installed at the rear of the bracket (1).

8. A hydraulic double-end hoop bender according to claim 1 or 4, characterized in that: A steel support bracket (18) is mounted on the bracket (1), the support bracket (18) comprising a base (181) slidably connected to the bracket (1), a column (182) being provided on the base (181), a telescopic spring (183) being sleeved on the column, an upper bracket (184) being sleeved on the column (182) via a sleeve (185) below, the telescopic spring (183) being located between the sleeve (185) and the base (181).

Images