Steel bar pressing device

Abstract

The utility model relates to a steel bar pressing device. The steel bar pressing device comprises a horizontally arranged pressing plate and two hydraulic cylinders located above the pressing plate, two pull ring sets are fixed to the upper surface of the pressing plate in the length direction, and pressing blocks are fixed to the tail ends of piston rods of the hydraulic cylinders; the pressing blocks are driven by a hydraulic cylinder to move up and down in a reciprocating mode, and the pressing blocks jointly drive the pressing plate to ascend through the corresponding pull ring sets. The pull ring set is composed of two pull rings arranged in parallel, and the two opposite ends of the pressing block extend out of the areas surrounded by the corresponding pull rings and the pressing plate respectively, or the two opposite ends of the pressing block are located in the areas surrounded by the corresponding pull rings and the pressing plate respectively. In the ascending and descending process of the pressing block, the part, located in the area surrounded by the corresponding pull ring and the pressing plate, of the pressing block can move in the vertical direction and the length direction of the pressing plate relative to the corresponding pull ring. And the pressing plate can be naturally inclined, so that the piston rods of the hydraulic cylinders are prevented from being bent when the two hydraulic cylinders are asynchronous.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar processing equipment, in particular to a steel bar pressing device suitable for a full-automatic steel bar sawing machine. Background Art

[0002] The fully automatic rebar sawing machine has the function of cutting rebar to fixed length. When the rebar enters the sawing position according to the designed length, a clamping device will be used to clamp the rebar, and then the sawing operation will be carried out. The current clamping devices are mainly single hydraulic cylinder type and double hydraulic cylinder type. The single hydraulic cylinder type is suitable for cutting a small amount of rebar and does not have the ability to clamp multiple rebars. The double hydraulic cylinder type has a stronger clamping ability. Its principle is that the piston rods of the two hydraulic cylinders are fixedly connected to the clamping plate, and the movement of the clamping plate is achieved through the synchronous movement of the hydraulic cylinders to clamp or loosen the rebar. However, it is difficult to ensure the synchronous movement of the two hydraulic cylinders during use. Occasionally, the hydraulic cylinders will move asynchronously, resulting in the disconnection between the hydraulic cylinder and the clamping plate or the piston rod of the hydraulic cylinder being bent. Utility Model Content

[0003] In view of the above problems, the present utility model is proposed to provide a steel bar pressing device that overcomes the above problems or at least partially solves the above problems.

[0004] The steel bar pressing device includes a horizontally arranged pressing plate and two hydraulic cylinders located above the pressing plate, two pull ring groups are fixed on the upper surface of the pressing plate along the length direction, and a pressing block is fixed at the end of the piston rod of the hydraulic cylinder; the pressing block is driven by the hydraulic cylinder to reciprocate up and down, and each of the pressing blocks drives the pressing plate to rise through the corresponding pull ring group; the pull ring group is composed of two pull rings arranged in parallel, and the opposite ends of the pressing block respectively extend out of the area surrounded by the corresponding pull ring and the pressing plate, or the opposite ends of the pressing block are respectively in the area surrounded by the corresponding pull ring and the pressing plate; during the rising and falling process of the pressing block, the part of the pressing block in the area surrounded by the corresponding pull ring and the pressing plate can move relative to the corresponding pull ring in the vertical direction and the length direction of the pressing plate; during the descent of the pressing block, it can be pressed against the upper surface of the pressing plate to transmit the pressure output by the hydraulic cylinder.

[0005] In one embodiment, the pull ring is composed of a horizontally arranged crossbar and two vertically arranged vertical rods, the upper ends of the two vertical rods are respectively fixedly connected to the two ends of the crossbar, and the lower ends of the two vertical rods are fixedly connected to the pressure plate.

[0006] In one embodiment, the virtual center line of the crossbar is parallel to the long side of the upper surface of the pressing plate.

[0007] In one embodiment, the pressing block is in the shape of a rectangular parallelepiped, and the end of the piston rod of the hydraulic cylinder is fixedly connected to the pressing block at the center of the upper surface of the pressing block; the virtual plane where the lower surface of the pressing block is located is parallel to the virtual plane on the upper surface of the pressure plate; the longitudinal section of the pressure plate is rectangular, and the long side of the upper surface of the pressing block is perpendicular to the long side of the upper surface of the pressure plate.

[0008] The utility model provides a steel bar pressing device, wherein the pressing plate can be naturally inclined, so as to prevent the piston rods of the hydraulic cylinders from being bent when the two hydraulic cylinders are not synchronized. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0010] Figure 1 It is a structural schematic diagram of an exemplary embodiment of a steel bar pressing device of the utility model;

[0011] Figure 2 for Figure 1 A structural schematic diagram of the middle steel bar pressing device from another perspective;

[0012] Figure 3 It is a structural schematic diagram of the steel bar pressing device when the pressing plate is in a hoisted state;

[0013] Figure 4 This is a schematic diagram of the structure of the steel bar clamping device when the two hydraulic cylinders move asynchronously.

[0014] Explanation of the reference numerals: 1. pressure plate; 2. hydraulic cylinder; 3. clamping block; 4. pull ring; 5. cross bar; 6. vertical bar. DETAILED DESCRIPTION

[0015] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, but cannot be understood as limiting the utility model. Ordinary technicians in this field can make various changes, modifications, substitutions and variations to these embodiments without departing from the principles and purpose of the utility model. The scope of the utility model is defined by the claims and their equivalents.

[0016] The terms "center", "longitudinal", "lateral", "length", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like mentioned or may be mentioned in the description of the present invention indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0017] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In addition, the terms "include", "comprises" and any variations thereof are intended to cover non-exclusive inclusions.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] A steel bar pressing device according to an embodiment of the utility model is described below with reference to the accompanying drawings. The steel bar pressing device is suitable for a fully automatic steel bar sawing machine.

[0020] See also Figures 1 to 3 According to an embodiment of the utility model, a steel bar pressing device comprises a horizontally arranged pressing plate 1 and two hydraulic cylinders 2 located above the pressing plate 1. The pressing plate 1 is used to transmit the pressure output by the two hydraulic cylinders 2 to the steel bar to be sawed, so as to press the steel bar to be sawed.

[0021] Two pull ring groups are fixed on the upper surface of the pressing plate 1 along the length direction. In this embodiment, the longitudinal section of the pressing plate 1 is rectangular, corresponding to Figure 2 In the view, the two pull ring groups can be fixed at positions close to the left and right ends of the pressing plate 1. When the pressing plate 1 and the two pull ring groups are made of metal as their preparation materials, the pull ring group can be fixed to the upper surface of the pressing plate 1 by welding.

[0022] A clamping block 3 is fixed to the end of the piston rod of the hydraulic cylinder 2. The clamping block 3 is driven by the hydraulic cylinder 2 to reciprocate up and down. Each of the clamping blocks 3 drives the pressure plate 1 to rise through the corresponding pull ring group. Similarly, when the piston rod and the clamping block 3 are made of metal, the clamping block 3 can be fixed to the end of the piston rod by welding. The clamping block 3 moves synchronously with the piston rod. During the rising process, the clamping block 3 can drive the pressure plate 1 to rise through the corresponding pull ring group.

[0023] Specifically, the pull ring group is composed of two pull rings 4 arranged in parallel, and the opposite ends of the pressing block 3 extend out of the area surrounded by the corresponding pull ring 4 and the pressing plate 1, respectively. Figure 2 From the perspective of the pressing block 3, the front and rear ends of the pressing block 3 extend out of the area surrounded by the corresponding pull ring 4 and the pressing plate 1 respectively. The virtual vertical cross-section of the area is larger than the vertical cross-section of the portion of the pressing block 3 in the area surrounded by the corresponding pull ring 4 and the pressing plate 1. During the rising and falling process of the pressing block 3, the portion of the pressing block 3 in the area surrounded by the corresponding pull ring 4 and the pressing plate 1 can move relative to the corresponding pull ring 4 in the vertical direction and the length direction of the pressing plate 1. During the rising process of the pressing block 3, after the pressing block 3 rises to the first set position, the pull ring 4 rests on the pressing block 3, and then rises synchronously with the pressing block 3 and drives the pressing plate 1 to rise, until the pressing block 3 rises to the second set position ( Figure 3 During the descent of the pressing block 3, after the pressing block 3 descends to the first set position, the pull ring 4 separates from the pressing block 3, and then the pressing block 3 continues to descend to the third set position ( Figure 2 The pressing block 3 is then pressed against the upper surface of the pressing plate 1 to transmit the pressure output by the hydraulic cylinder 2. During normal operation, the pressing block 3 moves only in the vertical direction relative to the pull ring 4 between the first setting position and the third setting position.

[0024] If the two hydraulic cylinders 2 are not synchronized, that is, an abnormality occurs, the clamping block 3 can also move relative to the pull ring 4 in the length direction of the pressing plate 1. Figure 4 From a certain perspective, when the two hydraulic cylinders 2 are not synchronized, the clamping block 3 can move left and right relative to the pull ring 4 while moving in the vertical direction relative to the pull ring 4, or the clamping block 3 only moves left and right relative to the pull ring 4, or the clamping block 3 only moves in the vertical direction relative to the pull ring 4. The pressure plate 1 can tilt naturally to prevent the piston rod of the hydraulic cylinder 2 from being bent when the two hydraulic cylinders 2 are not synchronized.

[0025] In another embodiment, the opposite ends of the pressing block 3 are respectively located in the area surrounded by the corresponding pull ring 4 and the pressing plate 1 .

[0026] In this embodiment, the pull ring 4 is composed of a horizontally arranged crossbar 5 and two vertically arranged vertical rods 6, the upper ends of the two vertical rods 6 are respectively fixedly connected to the two ends of the crossbar 5, and the lower ends of the two vertical rods 6 are fixedly connected to the pressing plate 1. The virtual center line of the crossbar 5 is parallel to the long side of the upper surface of the pressing plate 1.

[0027] The clamping block 3 is in a rectangular parallelepiped shape, and the end of the piston rod of the hydraulic cylinder 2 is fixedly connected to the clamping block 3 at the center of the upper surface of the clamping block 3. The virtual plane where the lower surface of the clamping block 3 is located is parallel to the virtual plane of the upper surface of the pressure plate 1, and the long side of the upper surface of the clamping block 3 is perpendicular to the long side of the upper surface of the pressure plate 1.

[0028] The steel bar pressing device of this embodiment has a pressing plate that can tilt naturally to prevent the piston rods of the hydraulic cylinders from being bent when the two hydraulic cylinders are out of sync.

Claims

1. A steel bar pressing device, characterized in that: It includes a horizontally arranged pressure plate and two hydraulic cylinders located above the pressure plate, two pull ring groups are fixed on the upper surface of the pressure plate along the length direction, and a clamping block is fixed at the end of the piston rod of the hydraulic cylinder; the pressure block is driven by the hydraulic cylinder to reciprocate up and down, and each of the pressure blocks drives the pressure plate to rise through the corresponding pull ring group; the pull ring group is composed of two parallelly arranged pull rings, and the opposite ends of the pressure block respectively extend out of the area surrounded by the corresponding pull ring and the pressure plate, or the opposite ends of the pressure block are respectively in the area surrounded by the corresponding pull ring and the pressure plate; during the rising and falling process of the pressure block, the part of the pressure block in the area surrounded by the corresponding pull ring and the pressure plate can move relative to the corresponding pull ring in the vertical direction and the length direction of the pressure plate; during the descent of the pressure block, it can be pressed against the upper surface of the pressure plate to transmit the pressure output by the hydraulic cylinder.

2. The steel bar pressing device according to claim 1, characterized in that: The pull ring is composed of a horizontally arranged crossbar and two vertically arranged vertical rods. The upper ends of the two vertical rods are respectively fixedly connected to the two ends of the crossbar, and the lower ends of the two vertical rods are fixedly connected to the pressing plate.

3. The steel bar pressing device according to claim 2, characterized in that: The virtual center line of the crossbar is parallel to the long side of the upper surface of the pressing plate.

4. The steel bar pressing device according to claim 3 is characterized in that: The clamping block is in the shape of a rectangular parallelepiped, and the end of the piston rod of the hydraulic cylinder is fixedly connected to the clamping block at the center of the upper surface of the clamping block; the virtual plane where the lower surface of the clamping block is located is parallel to the virtual plane on the upper surface of the pressure plate; the longitudinal section of the pressure plate is rectangular, and the long side of the upper surface of the clamping block is perpendicular to the long side of the upper surface of the pressure plate.

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