Cutting plate grabbing device

Abstract

The invention discloses a cutting plate grabbing device which comprises a main hanging beam, an opening and closing driving mechanism and a cutting plate holding claw which are sequentially arranged from top to bottom. The main lifting beam comprises a strip-shaped beam body which is horizontally arranged; the opening and closing driving mechanism comprises a worm lifting mechanism, a connecting beam and two connecting rod groups; the worm lifting mechanism is centrally fixed at the bottom of the main lifting beam, and a movable lead screw of the worm lifting mechanism is vertically downward and is connected with a horizontally arranged connecting beam; the two connecting rod sets are symmetrically arranged on the two end sides of the main beam body, and the top ends of two connecting rods of each connecting rod set are hinged to the end wall of the main beam body. The plate cutting holding claw is composed of two clamping claws symmetrically arranged below the two connecting rod sets, each clamping claw is composed of two crossed and hinged fold-line-shaped claw bodies, the top ends of the two fold-line-shaped claw bodies are hinged to the bottom ends of the two connecting rods on the same side, and the bottom ends of the two fold-line-shaped claw bodies are provided with oppositely-arranged hook bodies. The cut plate grabbing device is connected with hoisting equipment, so that the hoisting operation of bundled cut plates can be realized, manual operation assistance is not needed, the operation efficiency is high, and the risk is low.

Description

Technical Field

[0001] The present invention relates to the technical field of large-sized goods hoisting, and particularly to a cutting board gripping device. Background Art

[0002] As a large-sized board, the cutting board has a wide range of uses but is not convenient for transportation. Generally, multiple cutting boards are stacked and bundled into a group, and then placed in stacks on the ground in a horizontal and vertical alternating manner to form a cross stack, and then waiting to be transported to a designated location.

[0003] Currently, there are generally two transportation methods for bundled cutting boards. One method is to use a lifting device to sling the bundled cutting boards with a sling for hoisting; the other method is to use a forklift for shoveling and transporting. However, the transportation method of sling hoisting requires manual cooperation. Moreover, the bundled cutting boards are not only heavy but also have sharp top corners, so there is a certain operation risk in the manual operation process; while the transportation method of forklift shoveling has requirements for the activity space of the forklift. And because the bundled cutting boards are placed on the ground in a cross stack manner, the forklift needs to run back and forth in circles to cooperate with the insertion direction of the bundled cutting boards, resulting in low work efficiency.

[0004] Based on this, it is necessary to design a cutting board gripping device for quickly gripping and hoisting the cutting board. Summary of the Invention

[0005] The object of the present invention is to provide a cutting board gripping device that solves the above technical problems.

[0006] For this purpose, the technical solution of the present invention is as follows:

[0007] A cutting board gripping device includes a main lifting beam, an opening and closing drive mechanism, and a cutting board clamping claw that are sequentially arranged from top to bottom. Among them,

[0008] The main lifting beam includes a strip-shaped beam body arranged horizontally; the opening and closing drive mechanism includes a worm lifting mechanism, a connecting beam, and two connecting rod groups; the worm lifting mechanism is fixed at the bottom of the beam body with its movable lead screw vertically downward, and a connecting sleeve is provided at the bottom end of the movable lead screw; the connecting beam is sleeved in the connecting sleeve and is arranged horizontally along the length direction of the beam body to drive the connecting beam to lift through the worm lifting mechanism; the two connecting rod groups are symmetrically arranged on both ends of the beam body, each connecting rod group is composed of two connecting rods, and their top ends are hinged to the end plates at both ends of the beam body through pins;

[0009] The cutting plate gripper consists of two gripper jaws, which are symmetrically arranged at both ends of the connecting beam; each gripper jaw includes two intersecting zigzag-shaped jaw bodies, the tops of the two jaw bodies are respectively hinged to the bottoms of two transmission rods on the same side through pins, and the intersection of the two is hinged to the same-side end face of the connecting beam through a pin, so that a parallelogram linkage structure is formed by the upper parts of the two jaw bodies and the two transmission rods; the lower parts of the two jaw bodies are arranged downward, and hooks facing each other are provided at their bottoms to support on the bottom surface of the cutting plate to be grabbed.

[0010] Further, two lifting lug groups are symmetrically arranged in the middle of the top side of the beam body, and each lifting lug group includes at least two spaced lifting lugs.

[0011] Further, the end plates at both ends of the beam body extend downward to form connecting parts, so that the tops of the two transmission rods can be hinged to the connecting parts on the same side through pins.

[0012] Further, each jaw body is composed of a first connecting rod, a second connecting rod, a third connecting rod and a support hook that are sequentially connected and integrally formed. The second connecting rod is a horizontal rod, the first connecting rod and the third connecting rod are respectively connected to both ends of the second connecting rod in an obliquely upward and obliquely downward manner, and the support hook is a hook body arranged obliquely upward and faces the second connecting rod side.

[0013] Further, the included angle between the first connecting rod and the first connecting rod is set to 155°, the included angle between the second connecting rod and the third connecting rod is set to 105°, the length of the second connecting rod is adapted to the width of the cutting plate, and the length of the third connecting rod is adapted to the total stacking thickness of the cutting plates corresponding to the maximum number of cutting plates to be grabbed.

[0014] Further, the distance between the two gripper jaws in the horizontal direction is 1.5 m to 2 m.

[0015] Further, multiple reinforcing rods are arranged at intervals between the two gripper jaws, and they are arranged parallel to the connecting beam. Both ends of each reinforcing rod are perpendicularly fixed to the opposite side wall surfaces of the jaw body.

[0016] Further, on each gripper jaw, clamping plates are attached and fixed to the opposite side wall surfaces of the lower parts of the two jaw bodies.

[0017] Compared with the prior art, the cutting plate grabbing device solves the problems in the prior art that the sling hanging operation process of cutting plate transportation requires manual assistance and there are operation risks, and the forklift shoveling transportation has low working efficiency. By designing a cutting plate grabbing device composed of a main lifting beam, an opening and closing drive mechanism and a cutting plate gripper connected in sequence from top to bottom, the cutting plate grabbing device can be directly connected to a lifting device to carry out the lifting operation of the cutting plate. It can not only realize the one-time grabbing of bundled cutting plates, but also does not require manual operation assistance, with high operation efficiency and low risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The side view of the cutting plate gripping device of the present invention when the cutting plate clamping claws are in the open state;

[0019] Figure 2 The structural schematic diagram of the cutting plate gripping device of the present invention when the cutting plate clamping claws are in the open state;

[0020] Figure 3 The side view of the cutting plate with a gripping width of 1.5 m grasped by the cutting plate gripping device of the present invention;

[0021] Figure 4 The structural schematic diagram of the cutting plate with a gripping width of 1.5 m grasped by the cutting plate gripping device of the present invention;

[0022] Figure 5 The side view of the cutting plate with a gripping width of 1.2 m grasped by the cutting plate gripping device of the present invention;

[0023] Figure 6 The structural schematic diagram of the cutting plate with a gripping width of 1.2 m grasped by the cutting plate gripping device of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the following embodiments are by no means restrictive of the present invention.

[0025] Refer to Figure 1 and Figure 2 , the cutting plate gripping device includes a main lifting beam 1, an opening and closing drive mechanism 2 and cutting plate clamping claws, which are arranged in sequence from top to bottom.

[0026] The main lifting beam 1 includes a horizontally arranged strip-shaped beam body 101, which is preferably a hollow beam body with a cubic structure; two lifting lug groups 102 are symmetrically arranged in the middle of the top side of the beam body 101, and the two are preferably symmetrically distributed on both sides of the beam body in the length direction, and each lifting lug group 102 is composed of two spaced lifting lugs.

[0027] The opening and closing drive mechanism 2 includes a worm lifting mechanism 201, a connecting beam 202, and two connecting rod groups 203; the worm lifting mechanism 201 is fixed at the center of the bottom surface of the beam body 101 with its movable lead screw facing vertically downward, and a connecting sleeve 204 is fixed at the bottom end of the movable lead screw, on which a through hole is provided along the length direction of the beam body 101; the connecting beam 202 is horizontally inserted into the connecting sleeve 204 to be horizontally arranged along the length direction of the main lifting beam 1, and the connecting beam 202 is driven to lift and lower by the worm lifting mechanism 201; the two connecting rod groups 203 are symmetrically arranged on both ends of the main beam body 1, correspondingly, the end plates at both ends of the beam body 101 extend downward and form inverted triangular connecting parts; each connecting rod group 203 includes two transmission rods, and the top ends thereof are hinged to the connecting parts on the same side on the beam body 101 through pins.

[0028] The worm lifting mechanism 201 specifically includes a motor, a lead screw, and a worm; the screw rod of the lead screw is vertically and crosswise arranged with the worm, and external teeth are provided on the outer wall of the lead screw nut so that it can mesh with the worm to form a worm and worm gear mechanism; the output shaft of the motor is connected to one end of the worm through a coupling; in practical applications, the motor drives the worm to rotate to realize the worm driving the lead screw nut to rotate; since the position of the lead screw nut is relatively fixed, therefore, the lead screw moves along its axis under the rotation of the lead screw nut; since the worm lifting mechanism 201 is arranged with its screw rod facing vertically downward, therefore, when the motor rotates, the screw rod can drive the connecting beam 202 to perform lifting and lowering movements.

[0029] The advantage of this worm lifting mechanism 201 is that it can lock the lifting and lowering positions of the connecting beam 202 through the motor, ensuring the stability of the opening and closing degree of the cutting plate gripper; and, in the case of power failure or equipment failure, the goods will not fall.

[0030] Preferably, two limit blocks are sleeved and fixed on the connecting beam 202, and the two are respectively arranged on both sides of the connecting sleeve 204 to limit the position of the connecting sleeve 204 on the connecting beam 202.

[0031] The cutting plate gripper is composed of two clamping claws 3, and the two are symmetrically arranged on both ends of the connecting beam 202; wherein, each group of clamping claws is composed of two folded claw bodies 301 arranged crosswise, the top ends of the two claw bodies 301 are respectively hinged to the bottom ends of the two transmission rods on the same side through pins, and the intersection of the two is hinged to the end surface on the same side of the connecting beam 202, so that a parallelogram connecting rod structure is formed by the upper parts of the two claw bodies 301 and the two transmission rods; the lower parts of the two claw bodies 301 face downward, and hooks facing each other are provided at the bottom ends of the two, so as to realize the opening and closing movement of the lower part through the up and down telescopic movement of the upper connecting rod structure.

[0032] In this embodiment, each claw body 301 is specifically composed of a first connecting rod, a second connecting rod, a third connecting rod and a support hook which are connected in sequence and integrally formed. The second connecting rod is a horizontal rod. The first connecting rod and the third connecting rod are respectively connected to both ends of the second connecting rod in an obliquely upward and obliquely downward manner. The support hook is a hook head body arranged obliquely upward and faces the side of the second connecting rod.

[0033] In practical applications, since the current mainstream plate cutting machines in steel mills cut plates in two specifications: plates with a width of 1.2 m and plates with a width of 1.5 m, and generally 15 - 30 plates are bundled into a bundle. To improve the universality of this grasping device and maintain a stable clamping force, the included angle between the first connecting rods of the claw bodies 301 is set to 155°, the included angle between the second connecting rod and the third connecting rod is set to 105°, and the length of the second connecting rod is set to 0.8 m; in addition, according to the two plate widths of 1.2 m and 1.5 m, the length of the second connecting rod is set to 1.6 m; according to the general plate length of 2.4 m - 4.8 m, the distance between two groups of clamping jaws is set to 2 m; according to the general thickness of a single plate of 2 mm - 8 mm, that is, the total thickness of the bundled plates 4 is 120 mm - 300 mm, the length of the third connecting rod is set to 450 m to achieve grasping 1 - 2 bundles of plates at one time.

[0034] As a preferred technical solution of this embodiment, on each clamping jaw 3, clamping plates 302 are attached and welded to the opposite side wall surfaces of the lower parts (i.e., the third connecting rods) of two claw bodies 301 to increase the contact area between the claw bodies 301 and the side wall of the bundled plates 4, and at the same time increase the structural strength of the lower claw bodies.

[0035] As another preferred technical solution of this embodiment, a plurality of reinforcing rods 5 are also arranged at intervals between the clamping jaws 3 on both sides, and they are arranged in a manner parallel to the connecting beam 202; both ends of each reinforcing rod 5 are perpendicularly fixed to the opposite side walls of the claw bodies 301; the arrangement of the plurality of reinforcing rods 5 can not only strengthen the overall structural strength of the plate clamping claws, but also ensure the synchronous movement of the clamping jaws 3 on both sides, and ensure that the opening and closing actions of the clamping jaws 3 on both sides are consistent.

[0036] See Figures 3 to 6 , the specific usage methods of this plate grasping device for the bundled plates 4 with a width of 1.2 m and the bundled plates 4 with a width of 1.5 m are described as follows.

[0037] A locking device is sleeved on the lifting lug group of the sheet cutting and grabbing device and connected to the lifting equipment; then, the lifting equipment moves the sheet cutting and grabbing device above the 4th layer of the bundled sheets to be grabbed; control the lead screw of the worm lifting mechanism 201 to move upward, so as to lift the connecting beam 202, causing the connecting rod structure formed by the upper part of the jaw 3 and the connecting rod group on each side to contract upward, driving the two jaw bodies of each jaw 3 to open relative to each other. At this time, the sheet clamping jaws are in an open state; lower the sheet cutting and grabbing device through the equipment, so that the open sheet clamping jaws are placed on both sides of the bundled sheets to be grabbed; when the bottom hook body of the sheet clamping jaws of the sheet cutting and grabbing device is lowered to below the bundled sheets 4, control the lead screw of the worm lifting mechanism 201 to move downward, so as to lower the connecting beam 202, causing the connecting rod structure formed by the upper part of the jaw 3 and the connecting rod group on each side to expand downward, thereby driving the two jaw bodies of each jaw 3 to close, firmly clamping on both sides of the bundled sheets 4, and realizing the grabbing.

[0038] As Figure 3 and Figure 4 shown is a schematic diagram of using this sheet cutting and grabbing device to grab sheets with a width of 1.5 m. Since the sheet clamping jaws are designed based on the size of this specification of sheets, therefore, it can contact the side and bottom surfaces of the bundled sheets 4 through the clamping plates 302 fixed inside the four jaw bodies and the hook bodies at the bottoms of the four jaw bodies 301, realizing the clamping of at least one bundle of sheets, and then the lifting equipment can transport the bundled sheets 4 to the designated position; in the above-mentioned manner, by controlling the opening of the sheet clamping jaws, the bundled sheets 4 can be unloaded from the sheet cutting and grabbing device.

[0039] As Figure 5 and Figure 6 shown is a schematic diagram of using this sheet cutting and grabbing device to grab sheets with a width of 1.2 m. When grabbing, the four jaw bodies 301 will further close according to the sheet width, and use the clamping plates 302 fixed inside the four jaw bodies and the hook bodies at the bottoms of the four jaw bodies 301 to contact the side and bottom surfaces of the bundled sheets 4 in a point-contact clamping manner to achieve firm clamping; similarly, this sheet cutting and grabbing device transports the bundled sheets 4 with a relatively narrow width to the designated position in a grabbing manner.

Claims

1. A cutting board grasping device, characterized in that, It includes a main lifting beam (1), an opening and closing drive mechanism (2) and a cutting plate gripper claw, which are arranged successively from top to bottom; among them, The main lifting beam (1) includes a strip-shaped beam body (101) arranged horizontally; the opening and closing drive mechanism (2) includes a worm lifting mechanism (201), a connecting beam (202) and two connecting rod groups (203); the worm lifting mechanism (201) is fixed to the bottom of the beam body (101) with its movable lead screw facing vertically downward, and a connecting sleeve (204) is provided at the bottom end of the movable lead screw; the connecting beam (202) is sleeved in the connecting sleeve (204) and is arranged horizontally along the length direction of the beam body (101) to drive the connecting beam (202) to lift through the worm lifting mechanism (201); the two connecting rod groups (203) are symmetrically arranged on both end sides of the beam body (101), and each connecting rod group (203) is composed of two connecting rods, and their tops are hinged to the end plates at both ends of the beam body (101) through pins; The cutting plate gripper claw is composed of two gripper claws (3), which are symmetrically arranged on both end sides of the connecting beam (202); each gripper claw (3) is composed of two crossed zigzag claw bodies (301), and the tops of the two claw bodies (301) are respectively hinged to the bottom ends of two transmission rods on the same side through pins, and their crossing points are hinged to the same side end face of the connecting beam (202), so that the upper parts of the two claw bodies (301) and the two transmission rods form a parallelogram connecting rod structure; the lower parts of the two claw bodies (301) are arranged downward, and hooks facing each other are provided at their bottom ends to support on the bottom surface of the cutting plate to be grabbed.

2. The cutting board gripping device according to claim 1, wherein Two lifting lug groups (102) are symmetrically arranged in the middle of the top side of the beam body (101), and each lifting lug group (102) includes at least two spaced lifting lugs.

3. The cutting plate gripping device according to claim 1, wherein, The end plates at both ends of the beam body (101) extend downward to form connecting parts, so that the top ends of the two transmission rods can be hinged to the connecting parts on the same side through pins.

4. The cutting plate gripping device according to claim 1, wherein Each claw body (301) is composed of a first connecting rod, a second connecting rod, a third connecting rod and a support hook that are sequentially connected and integrally formed. The second connecting rod is a horizontal rod, and the first connecting rod and the third connecting rod are respectively connected to both ends of the second connecting rod in an obliquely upward and obliquely downward manner. The support hook is a hook body arranged obliquely upward and faces the second connecting rod side.

5. The cutting plate gripping device according to claim 4, characterized in that, The included angle between the first connecting rod and the first connecting rod is set to 155°, the included angle between the second connecting rod and the third connecting rod is set to 105°, the length of the second connecting rod is adapted to the width of the cutting plate, and the length of the third connecting rod is adapted to the total stacking thickness of the cutting plates corresponding to the maximum number of cutting plates to be grabbed.

6. The cutting plate gripping device according to claim 1, characterized in that, The distance between the two gripper claws (3) in the horizontal direction is 1.5 m to 2 m.

7. The cutting plate gripping device according to claim 1, characterized in that, A plurality of reinforcing rods (5) are arranged at intervals between the two gripper claws (3), and they are arranged parallel to the connecting beam (202). Both ends of each reinforcing rod (5) are vertically fixed to the opposite side wall surfaces of the claw body (301).

8. The cutting board gripping device according to claim 1, wherein, On each gripper claw (3), clamping plates (302) are attached and fixed to the opposite side wall surfaces of the lower parts of the two claw bodies (301).

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