JP2023510995A - Truss bottom leg cutting device - Google Patents

Abstract

a frame (1) and a fixed tool post (2) fixed to the frame and provided with two fixed blades (3) symmetrically, the fixed tool post being provided to support a truss (10), and two fixed blades are provided to support the truss bottom leg (100) of the truss, fixed turret (2) and symmetrically mounted on the frame, each provided with a movable blade (5) 2 two cutting arms (4) mounted on the frame and arranged to drive the two cutting arms into motion so that the two cutting arms have two movable blades approaching the corresponding fixed blades. and a drive member (6) for driving and cooperating with two fixed blades to cut the truss bottom leg. [Selection drawing] Fig. 2

Description

This application claims priority to a Chinese patent application numbered 202011502836.3 filed with the Chinese Patent Office on December 18, 2020, the entire content of which is incorporated by reference. incorporated into this application.

The present application relates to the field of truss processing technology, for example to a truss bottom foot cutting device.

A rebar truss floor deck is formed by welding two parts, a bottom plate and a rebar truss. As shown in FIG. 1, the reinforcing bar truss 10 is formed by welding an upper chord rib 101, a lower chord rib 102, and a truss bottom leg 100 connecting the upper and lower chord ribs. Here, the truss bottom leg 100 is made of corrugated rebar. At present, truss production lines are involved in truss cutting work, and in general, there are many methods of cutting avoiding the position of the truss bottom. However, for special needs or situations where the truss bottom leg must be cut from the position, the truss bottom leg is often manually cut using a method such as a toothless saw. However, there are problems such as difficulty in controlling the length accuracy of the reinforcing steel truss, low manufacturing efficiency, and too much work load on workers, which poses safety problems.

The present application provides a truss bottom leg amputation device that can solve the situation of low manufacturing efficiency and heavy workload existing in the truss bottom leg amputation method.

In one example,
a frame;
A fixed tool post fixed to the frame and provided with two fixed blades symmetrically, the fixed tool post being configured to support a truss, and the two fixed blades being the truss bottom of the truss a fixed turret configured to support a foot;
two cutting arms symmetrically mounted on the frame and each provided with a movable blade;
mounted on the frame and configured to drive the two cutting arms to move, causing the two cutting arms to entrain the two movable blades to approach the corresponding fixed blades; and a drive member that cooperates with the two fixed blades to cut the truss bottom leg;
A truss bottom foot amputation device comprising:

Preferably, said two cutting arms are rotatably mounted on said frame, said drive member is operable to rotate said two cutting arms, and said two movable blades are adapted to cut said two cutting arms respectively. It can be attached to one end of an arm and entrained in rotation by said two cutting arms respectively.

Preferably, it further comprises a transmission module, said transmission module having a crankshaft rotatably mounted on said frame and two connecting arms mounted on said crankshaft and only rotating with respect to said crankshaft. each of said connecting arms being rotatably connected to a cutting arm, said drive member being drivingly connected to said crankshaft and capable of entraining said crankshaft in rotation; can synchronously entrain the two connecting arms to protrude and retract when rotating.

Preferably, the crankshaft includes a first connection portion and a second connection portion, and the center axis of the first connection portion and the center axis of the second connection portion are symmetrical with respect to the centerline of the crankshaft. one of the connecting arms is rotatably connected to the first connecting portion and the other of the connecting arms is rotatably connected to the second connecting portion.

Preferably, the transmission module further comprises a connecting rod, a first end of the connecting rod is rotatably connected to the connecting arm, and a second end of the connecting rod is rotatably connected to the cutting arm.

Preferably, two said drive members are provided, each said drive member being drivingly connected to one corresponding said cutting arm.

Preferably, the two drive members operate synchronously to drive the two cutting arms to rotate synchronously.

Preferably, said two cutting arms are slidably mounted on said frame, said driving member is capable of driving the sliding of said two cutting arms, and said two movable blades are mounted at one end of said two cutting arms. It can be movably entrained by the two cutting arms mounted respectively to the corresponding fixed blade.

Preferably, said driving member is an air cylinder or an oil cylinder, and the output end of said air cylinder or oil cylinder is connected to said two cutting arms.

Preferably, the fixed tool post includes a support and mounting portions located on both sides of the support, the support being arranged to support the truss, and the two fixed blades being respectively attached to the two mounting portions. fixedly attached to the

1 is a structural schematic diagram of a truss according to the present application; FIG. 1 is a front view of a truss bottom foot amputation device according to the present application; FIG. 1 is a side view of a truss bottom foot amputation device according to the present application; FIG. FIG. 3 is a structural schematic diagram hiding the frame and driving member of the truss bottom foot amputation device according to the present application; FIG. 4 is a schematic diagram of the fitting structure of the transmission module and the cutting arm according to the present application;

1 - frame, 2 - fixed turret, 21 - support, 22 - attachment, 3 - fixed blade, 4 - cutting arm, 5 - movable blade, 6 - drive member, 7 - transmission module, 71 - Crankshaft, 711 - first connecting part, 712 - second connecting part, 72 - connecting arm, 73 - connecting rod, 10 - truss, 100 - truss bottom foot, 101 - upper chord rib, 102 - lower chord rib

In the description of the present application, the terms "contact", "connection" and "fixation" should be understood broadly, for example, may be a fixed connection, a detachable connection It may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium It may also be communication between two elements or an interaction relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific situation.

In this application, unless expressly specified and limited, reference to a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact; It may include that the first and second features are in contact through another feature therebetween rather than being in direct contact. Also, that the first feature is "above," "above," and "top" the second feature includes that the first feature is directly above and obliquely above the second feature, or that the first feature is horizontally above the first feature. It only indicates that the height is higher than the second feature. The first feature being "below", "below" and "lower side" of the second feature includes that the first feature is directly below and diagonally below the second feature, or that the horizontal height of the first feature is It only indicates that it is less than the second feature.

In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the orientation or positional relationship shown in the drawings and are for ease of explanation and operation only. and does not indicate or imply that the indicated device or element has a particular orientation and is not required to be constructed or operated in a particular orientation, thus limiting this application. should not be understood as Also, the terms "first" and "second" are used only for distinction in the description and have no special meaning.

In the present application, there is no need for manual cutting, and automatic cutting can be realized for the truss bottom foot 100 of the truss 10, which has a higher degree of automation, improves manufacturing efficiency, and improves worker workload and safety. To provide a truss bottom foot amputator that reduces the problem of

As shown in FIGS. 2 to 5, the truss bottom leg cutting device includes a frame 1, a fixed tool post 2, a fixed blade 3, a cutting arm 4, a movable blade 5, a driving member 6, and a transmission module. 7.

Here, the frame 1 is configured to support the fixed tool post 2, the fixed blade 3, the cutting arm 4, the movable blade 5, the drive member 6, and the transmission module 7, A cutting operation for the truss bottom foot 100 is realized.

The fixed tool post 2 is fixed to the frame 1 and preferably arranged at the top position of the frame 1 . The shape of the fixed tool post 2 matches the shape of the truss 10 . As shown in FIGS. 2 and 4 , the fixed tool post 2 includes a support portion 21 and mounting portions 22 located on both sides of the support portion 21 . Here, the support portion 21 presents a substantially inverted trapezoidal structure. The truss 10 is arranged on and supported by the support portion 21 . The mounting portion 22 is provided so as to fix and mount the fixed blade 3 . Moreover, when the truss 10 is placed on the support 21 , the truss bottom leg 100 can be placed on the fixed blade 3 .

The cutting arm 4 is mounted on the frame 1 and can rotate with respect to the frame 1 . As shown in FIG. 4, the middle upper position of the cutting arm 4 is connected to the frame 1 so as to be rotatable by a rotating shaft. The movable blade 5 is attached to one end of the cutting arm 4 that is close to the rotating shaft, and the movable blade 5 approaches or separates from the fixed blade 3 as the cutting arm 4 rotates. be able to. When the cutting arm 4 brings the movable blade 5 closer to the fixed blade 3 , the movable blade 5 and the fixed blade 3 can cooperate to cut the truss bottom foot 100 .

Illustratively, the cutting arms 4 in this example are provided symmetrically on the frame 1 . Correspondingly, two movable blades 5 and two fixed blades 3 are provided symmetrically. Furthermore, cutting the truss bottom legs 100 on both sides of the truss 10 is realized.

The drive member 6 is configured to drive the cutting arm 4 to rotate with respect to the frame 1 . The drive member 6 may be a motor or a deceleration motor. Also, two driving members 6 may be provided. The two drive members 6 each drive the rotation of one cutting arm 4 to achieve cutting of the truss bottom leg 100 . Moreover, the two driving members 6 can preferably operate synchronously, and synchronously cut the truss bottom legs 100 on both sides of the same position of the truss 10 to improve the cutting efficiency.

Due to manufacturing cost considerations, preferably only one drive member 6 is provided in this embodiment. At this time, the driving member 6 drives the cutting arm 4 to rotate by means of the transmission module 7 . 2 and 5 , the transmission module 7 includes a crankshaft 71 , a connecting arm 72 and a connecting rod 73 .

Here, the crankshaft 71 is rotatably mounted on the frame 1 and rotatably driven by the drive member 6 . The crankshaft 71 is provided with a first connection portion 711 and a second connection portion 712 , one connection arm 72 is rotatably connected to the first connection portion 711 , and the other connection arm 72 is connected to the second connection portion 712 . rotatably connected to the One end of each connecting arm 72 is rotationally connected to the first end of one connecting rod 73 . A second end of each connecting rod 73 is rotatably connected to the cutting arm 4 . Further, when the connection arm 72 is driven by the crankshaft 71 to extend or retract, the connection arm 72 can rotate the cutting arm 4, and the cutting arm 4 moves the movable blade 5 to the fixed blade 3. take you closer to or away from

Illustratively, the center axis of the first connection portion 711 and the center axis of the second connection portion 712 are provided symmetrically with respect to the center line of the crankshaft 71 . The center axis of the first connection portion 711 and the center axis of the second connection portion 712 are provided symmetrically with respect to the center line of the crankshaft 71, so that when the crankshaft 71 rotates, two The connecting arms 72 can be projected at the same time. In addition, the two cutting arms 4 and the movable blades 5 are brought close to the fixed blade 3 at the same time to achieve synchronous cutting of the truss bottom legs 100 on both sides of the truss 10 . Alternatively, the two connecting arms 72 are retracted at the same time, and the two cutting arms 4 and the movable blade 5 are taken away from the fixed blade 3 at the same time.

In the truss bottom leg cutting device of this embodiment, when operating, the truss 10 is first placed on the support 21 of the fixed tool post 2 and the truss bottom leg 100 is positioned on the fixed blade 3 . Next, the driving member 6 drives the crankshaft 71 to rotate. The crankshaft 71 drives the two connecting arms 72 to extend. The connecting arm 72 entrains the cutting arm 4 in rotation. Rotation of the cutting arm 4 brings the movable blade 5 closer to the fixed blade 3 and finally cooperates with the fixed blade 3 to cut the truss bottom foot 100 .

After the truss bottom leg 100 has been cut, continue to transport the truss 10 rearward to the truss shearing device. The cutting of the entire truss 10 is completed by cutting the top and bottom chord ribs with a truss shear.

Embodiment 2 This embodiment provides a truss bottom foot amputation device with the following differences from the first embodiment. The cutting arm of this embodiment is not rotatably mounted on the frame, but is slidably mounted on the frame. And a drive member is provided to drive the slide of the cutting arm. Moreover, no transmission module is provided in this embodiment.

Preferably, the frame is provided with a slide rail and correspondingly the cutting arm is provided with a slider, and the drive member drives the cutting arm to slide along the vertical direction. Sliders and slide rails can serve the purpose of guiding and stabilizing support.

At the same time, the driving member in this embodiment may be an air cylinder or an oil cylinder. The output end of the air cylinder or oil cylinder is connected to the cutting arm. Two driving members may be provided. Each drive member is drivingly connected to a respective cutting arm. And the two drive members preferably operate synchronously to achieve synchronous sliding of the cutting arm. There may be only one drive member, in which case it is necessary to install a connecting part. A connecting piece fixedly connects the two cutting arms, and the output end of the drive member is fixedly connected to the connecting piece. A drive member drives the connecting piece to move and the connecting piece can simultaneously drive the slides of the two cutting arms.

Other structures of the present embodiment are the same as those of the first embodiment, so description thereof will be omitted.

In the truss bottom foot cutting device of this embodiment, when operating, the truss is first placed on the support of the fixed turret, and the bottom foot of the truss is positioned on the fixed blade. After that, the driving member drives the cutting arm to slide downward, and the movable blade on the cutting arm is brought close to the fixed blade, and finally cooperates with the fixed blade to move the bottom leg of the truss. disconnect.

After the bottom of the truss is cut, the truss is subsequently transported to a truss shearing device. The cutting of the truss is completed by cutting the upper chord rib and the lower chord rib with the truss cutting device.

In the present invention, the cutting arm 4 brings the movable blade 5 closer to the fixed blade 3 . After that, the movable blade 5 and the fixed blade 3 cooperate to cut the truss bottom leg 100 . To achieve automatic cutting to the truss bottom leg 100 of the truss 10 without the need for manual cutting. A higher degree of automation improves manufacturing efficiency and reduces operator workload and safety concerns.

Claims (10)

a frame (1);
A fixed tool post (2) fixed to the frame (1) and provided with two fixed blades (3) symmetrically, wherein the fixed tool post (2) is provided to support a truss (10). a fixed tool post (2) provided with said two fixed blades (3) supporting a truss bottom foot (100) of said truss (10);
two cutting arms (4) mounted symmetrically on said frame (1) and each provided with a movable blade (5);
Said two movable blades (5) on said two cutting arms (4) by being mounted on said frame (1) and arranged to drive said two cutting arms (4) into motion. a drive member (6) to bring the corresponding fixed blades (3) close to each other and cooperate with the two fixed blades (3) to cut the truss bottom foot (100);
A truss bottom foot cutting device including. said two cutting arms (4) are rotatably mounted on said frame (1);
said drive member (6) is drivable to rotate said two cutting arms (4);
Said two movable blades (5) are respectively attached to one end of said two cutting arms (4) and can be taken rotationally by said two cutting arms (4) respectively. Item 2. The truss bottom foot amputation device according to item 1. further comprising a transmission module (7);
Said transmission module (7) comprises a crankshaft (71) rotatably mounted on said frame (1) and a crankshaft (71) mounted on said crankshaft (71) and only rotating with respect to said crankshaft (71). two connecting arms (72);
each said connecting arm (72) being rotatably connected to one cutting arm (4);
said drive member (6) is drivingly connected to said crankshaft (71) and entrainable to rotate said crankshaft (71);
A truss bottom foot cutting device according to claim 2, wherein the crankshaft (71) is capable of entraining the two connecting arms (72) to extend and retract synchronously when rotating. The crankshaft (71) includes a first connection portion (711) and a second connection portion (712), and the central axis of the first connection portion (711) and the central axis of the second connection portion (712) are It is provided symmetrically with respect to the center line of the crankshaft (71), one of the connecting arms (72) is rotatably connected to the first connecting portion (711), and the other of the connecting arms (72) ) is rotatably connected to said second connection (712). the transmission module (7) further comprises a connecting rod (73),
a first end of said connecting rod (73) is rotatably connected to said connecting arm (72) and a second end of said connecting rod (73) is rotatably connected to said cutting arm (4); A truss bottom foot amputator according to claim 3 or 4. Truss bottom foot amputator according to claim 2 or 5, wherein two drive members (6) are provided, each drive member (6) being drivingly connected to one corresponding cutting arm (4). . Truss bottom foot amputator according to claim 6, wherein the two drive members (6) operate synchronously to drive the two cutting arms (4) to rotate synchronously. said two cutting arms (4) are slidably mounted on said frame (1),
said drive member (6) is capable of driving the sliding of said two cutting arms (4);
Said two movable blades (5) are respectively attached to one end of said two cutting arms (4) and taken by said two cutting arms (4) to move to corresponding said fixed blades (3). The truss bottom foot amputator of claim 1, wherein the truss bottom foot amputator is capable of The driving member (6) is an air cylinder or an oil cylinder,
Truss bottom foot cutting device according to claim 8, wherein the output end of the air or oil cylinder is connected to the two cutting arms (4). The fixed tool post (2) includes a support (21) and mounting portions (22) located on both sides of the support (21),
said support (21) is configured to support said truss (10),
The truss bottom foot cutting device according to claim 1, wherein said two fixed blades (3) are fixedly attached to two mounting portions (22) respectively.

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