Grabbing device of stacker crane

Abstract

The utility model discloses a grabbing device of a stacker crane, relates to the technical field of stackers, and aims to solve the problems that materials of different specifications cannot be stably grabbed and the practicability is low when the materials of different specifications are grabbed in the background technology. The connecting mechanism comprises a connecting base connected to the stacking machine through bolts and two fixing plates connected to the outer wall of the bottom of the connecting base through bolts, and an adjusting assembly is arranged on the connecting base. And the adjusting assembly comprises an adjusting motor connected to the outer wall of the top of the connecting seat through a bolt, a gear box connected to the outer wall of the bottom of the connecting seat through a bolt, two screw rods which penetrate through and are connected to the inner walls of the two sides of the gear box through bearings, two mounting seats and four first mounting blocks. The distance between the two clamping plates can be adjusted, so that materials of different specifications can be clamped, and the practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of palletizing machine technology, and in particular to a gripping device for a palletizing machine. Background Technology

[0002] A palletizer automatically stacks cartons already packed in containers onto pallets or stacks (wooden or plastic) in a specific arrangement. Multiple layers can be stacked, and then the cartons are pushed out for easy transport to a warehouse by forklift.

[0003] A search revealed a Chinese patent (application number "202223112879.8") disclosing "a gripping device for a palletizing machine." This gripping device includes a top plate, the upper middle side of which is connected to the palletizing machine's robotic arm via a shock absorber. Two through holes are symmetrically arranged at both ends of the top plate, and baffles are vertically installed at both ends. A cylinder is installed in each through hole. Two T-shaped support rods are installed on the top plate, with the horizontal end of each T-shaped support rod positioned above the top plate. The vertical end of each T-shaped support rod passes through each through hole and is connected to the cylinder via a buffer. A bottom gripper is provided at the vertical end of each T-shaped support rod. Each T-shaped support rod also has side grippers for fixing the sides of the container. However, during use, this gripping device cannot stably grip materials of different specifications, resulting in low practicality. Utility Model Content

[0004] This utility model provides a gripping device for a palletizer, which solves the problem of low practicality of the gripping device proposed in the prior art when gripping materials of different specifications, as it cannot stably grip materials of different specifications.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A palletizer gripping device includes a connecting mechanism. The connecting mechanism includes a connecting seat bolted to the palletizer and two fixing plates bolted to the bottom outer wall of the connecting seat. The connecting seat is equipped with an adjusting assembly, which includes an adjusting motor bolted to the top outer wall of the connecting seat, a gearbox bolted to the bottom outer wall of the connecting seat, two screws passing through and connected to the inner walls of the gearbox via bearings, two mounting seats bolted to one end of the two screws, and four first mounting blocks bolted to opposite sides of the two mounting seats. Each mounting seat has a connecting rod assembly on one side. Each connecting rod assembly includes connecting shafts with both ends passing through and connected to one side of the outer wall of the two first mounting blocks via bearings, and two rotatable mounting blocks... Triangular connecting rods are mounted on the outer walls of both ends of the connecting shaft, and fixed shafts are respectively passed through and connected to the upper outer walls of the two triangular connecting rods by bearings. Two tensioning assemblies are provided on one side of each of the two mounting seats. Each tensioning assembly includes a fixed block connected to the outer wall of one side of the mounting seat by bolts, a connecting block abutting against the outer wall of one side of the fixed block, a hydraulic cylinder fixed to the outer wall of one end of the connecting block, and a fixed seat fixed to the outer wall of one end of the piston rod of the hydraulic cylinder. Each of the two mounting seats is provided on one side of the clamping assembly. Each clamping assembly includes a mounting shaft respectively passed through and connected to the outer wall of one side of the two triangular connecting rods by bearings, two second mounting blocks respectively connected to the outer walls of both ends of the mounting shaft by bolts, clamping plates connected to the outer walls of one side of the two second mounting blocks by bolts, and two torsion springs respectively sleeved on the outer walls of both ends of the mounting shaft.

[0007] Preferably, the bottom of the connecting seat has two side plates connected to the outer walls on both sides by bolts, and the two fixing plates are respectively fixed to the outer walls of one side plate.

[0008] Preferably, one end of each of the two screws is connected to the outer wall of one side of the two fixed plates via bearings. Two slides are opened on the top outer wall of the connecting seat. Two slide rods are fixed on the top outer wall of each of the two mounting seats, and the four slide rods are slidably installed in the two slides. Limit bolts are screwed onto the upper outer wall of each of the four slide rods.

[0009] The above scheme involves adjusting the rotation of the motor output shaft and driving it through a gearbox to rotate two screws. The two screws then move two mounting seats, causing them to move away from each other. This, in turn, causes the clamping plates to move away from each other, thereby enabling the clamping of materials of different specifications.

[0010] Preferably, each of the two side plates has a channel on its lower outer wall, and the two ends of the connecting shaft are slidably installed in the two channels respectively.

[0011] Preferably, a fixing rod is fixed on one side of the outer wall of the connecting block, and the fixing rod passes through and is connected to one side of the outer wall of the fixing block through a bearing, and the fixing seat is connected to the outer wall of the fixing shaft by bolts.

[0012] Preferably, each of the two clamping plates has two fixing holes on one side of its outer wall, and each of the four triangular connecting rods has an installation port on one end of its outer wall. The lower parts of the two torsion springs are inserted into the two fixing holes on one side of the clamping plate, and the upper parts of the two torsion springs are inserted into the installation ports on one side of the two triangular connecting rods.

[0013] The above scheme involves moving the piston rod of the hydraulic cylinder, which pulls the fixed shaft and the triangular connecting rod to rotate along the axis of the connecting shaft, causing the two clamping plates to move closer to each other. When the lower part of the clamping plate contacts the material, the clamping plate flips along the axis of the mounting shaft, and at the same time, the torsion spring twists, making the two clamping plates parallel to each other, thereby clamping the material. The torsion spring keeps the angle between the clamping plate and the triangular connecting rod constant when the triangular connecting rod flips.

[0014] The beneficial effects of this utility model are as follows:

[0015] The motor output shaft rotates and is driven by a gearbox, which in turn drives two screws to rotate. The two screws then move two mounting seats apart, causing the clamping plates to move apart as well. This allows for the clamping of materials of different specifications. The distance between the two clamping plates can be adjusted to accommodate materials of different specifications, thus improving practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall main structure of the gripping device of a palletizer proposed in this utility model.

[0017] Figure 2 This is a front view cross-sectional structural diagram of a gripping device for a palletizing machine proposed in this utility model.

[0018] Figure 3 This is a front view structural diagram of the connection mechanism of the gripping device of a palletizer proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the main structure of the adjustment component of the gripping device of a palletizer proposed in this utility model.

[0020] Figure 5 This is a schematic diagram of the main structure of the linkage assembly of the gripping device of a palletizer proposed in this utility model.

[0021] Figure 6 This is a schematic diagram of the main structure of the stretching component of the gripping device of a palletizer proposed in this utility model.

[0022] Figure 7 This is a schematic diagram of the main structure of the clamping component of the gripping device of a palletizer proposed in this utility model.

[0023] In the diagram: 1. Connecting mechanism; 101. Connecting seat; 102. Side plate; 103. Fixing plate; 2. Adjusting assembly; 201. Adjusting motor; 202. Gearbox; 203. Screw; 204. Mounting seat; 205. Slide rod; 206. First mounting block; 3. Linkage assembly; 301. Connecting shaft; 302. Triangular linkage; 303. Fixing shaft; 4. Tensioning assembly; 401. Fixing block; 402. Connecting block; 403. Fixing rod; 404. Hydraulic cylinder; 405. Fixing seat; 5. Clamping assembly; 501. Mounting shaft; 502. Second mounting block; 503. Clamping plate; 504. Torsion spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1, referring to Figure 1-4 A gripping device for a palletizer includes a connecting mechanism 1. The connecting mechanism 1 includes a connecting seat 101 bolted to the palletizer and two fixing plates 103 bolted to the bottom outer wall of the connecting seat 101. Two side plates 102 are bolted to the bottom outer walls of the connecting seat 101 on both sides. The two fixing plates 103 are fixed to one side outer wall of the two side plates 102 respectively. An adjusting assembly 2 is provided on the connecting seat 101. The adjusting assembly 2 includes an adjusting motor 201 bolted to the top outer wall of the connecting seat 101, a gearbox 202 bolted to the bottom outer wall of the connecting seat 101, and two screws 203 that pass through and are connected to the inner walls of the gearbox 202 on both sides by bearings. Two mounting seats 204 are respectively screwed to the outer wall of one end of two screw rods 203, and four first mounting blocks 206 are respectively bolted to the outer wall of opposite sides of the two mounting seats 204. The output shaft of the adjusting motor 201 is fixed to the gear in the gearbox 202. One end of the two screw rods 203 is fixed to the two gears in the gearbox 202. One end of the two screw rods 203 is respectively connected to the outer wall of one side of the two fixing plates 103 through bearings. Two slide rails are opened on the top outer wall of the connecting seat 101. Two slide rods 205 are fixed on the top outer wall of each of the two mounting seats 204. The four slide rods 205 are slidably installed in the two slide rails. Limit bolts are screwed to the upper outer wall of each of the four slide rods 205.

[0026] Example 2, refer to Figure 5-7A palletizer gripping device further includes two linkage assemblies 3. Each linkage assembly 3 includes a connecting shaft 301, with both ends passing through and connected to the outer wall of one side of two first mounting blocks 206 via bearings; two triangular connecting rods 302, rotatably mounted on the outer walls of both ends of the connecting shaft 301; and a fixed shaft 303, with both ends passing through and connected to the upper outer wall of the two triangular connecting rods 302 via bearings. Channels are opened on the lower outer walls of both side plates 102, and the two ends of the connecting shaft 301 are slidably mounted within the two channels. Two tensioning assemblies 4 are provided on one side of each of the two mounting seats 204. Each tensioning assembly 4 includes a fixed block 401 bolted to the outer wall of one side of the mounting seat 204; a connecting block 402 abutting against the outer wall of one side of the fixed block 401; a hydraulic cylinder 404 fixed to the outer wall of one end of the connecting block 402; and a fixed seat 405 fixed to the outer wall of one end of the piston rod of the hydraulic cylinder 404. A fixed rod 405 is fixed to the outer wall of one side of the connecting block 402. 3. The fixing rod 403 passes through and is connected to the outer wall of the fixing block 401 via a bearing. The fixing seat 405 is connected to the outer wall of the fixing shaft 303 via bolts. Each of the two mounting seats 204 is provided with a clamping assembly 5. The clamping assembly 5 includes a mounting shaft 501 with both ends passing through and connected to the outer wall of the two triangular connecting rods 302 via bearings, two second mounting blocks 502 connected to the outer walls of the two ends of the mounting shaft 501 via bolts, a clamping plate 503 connected to the outer wall of the two second mounting blocks 502 via bolts, and two torsion springs 504 respectively sleeved on the outer walls of the two ends of the mounting shaft 501. Each of the two clamping plates 503 has two fixing holes on one side of the outer wall. Each of the four triangular connecting rods 302 has an installation port on one end of the outer wall. The lower part of the two torsion springs 504 is inserted into the two fixing holes on one side of the outer wall of the clamping plate 503, and the upper part of the two torsion springs 504 is inserted into the installation ports on one side of the outer wall of the two triangular connecting rods 302.

[0027] Working principle: The output shaft of the regulating motor 201 rotates and is driven by the gearbox 202, which drives the two screws 203 to rotate. The two screws 203 drive the two mounting seats 204 to move away from each other, thereby driving the clamping plates 503 to move away from each other. The piston rod of the hydraulic cylinder 404 moves, pulling the fixed shaft 303 and the triangular connecting rod 302 to rotate along the axis of the connecting shaft 301, so that the two clamping plates 503 move closer to each other. When the lower part of the clamping plate 503 contacts the material, the clamping plate 503 flips along the axis of the mounting shaft 501. At the same time, the torsion spring 504 twists, so that the two clamping plates 503 are parallel to each other, thereby clamping the material. The torsion spring 504 keeps the angle between the clamping plate 503 and the triangular connecting rod 302 constant when the triangular connecting rod 302 flips.

[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A gripping device for a palletizer, comprising a connecting mechanism (1), characterized in that, The connecting mechanism (1) includes a connecting seat (101) bolted to the palletizer and two fixing plates (103) bolted to the bottom outer wall of the connecting seat (101); The connecting seat (101) is provided with an adjustment assembly (2), which includes an adjustment motor (201) bolted to the top outer wall of the connecting seat (101), a gearbox (202) bolted to the bottom outer wall of the connecting seat (101), two screws (203) that pass through and are connected to the inner walls of the gearbox (202) on both sides by bearings, two mounting seats (204) bolted to the outer wall of one end of the two screws (203), and four first mounting blocks (206) bolted to the outer walls of the two mounting seats (204) on opposite sides. Each of the two mounting bases (204) is provided with a connecting rod assembly (3) on one side. The connecting rod assembly (3) includes a connecting shaft (301) with both ends passing through and connected to the outer wall of one side of the two first mounting blocks (206) by bearings, two triangular connecting rods (302) rotatably mounted on the outer walls of both ends of the connecting shaft (301), and a fixed shaft (303) with both ends passing through and connected to the upper outer wall of the two triangular connecting rods (302) by bearings. Two tensioning components (4) are provided on one side of each of the two mounting bases (204). The tensioning component (4) includes a fixing block (401) bolted to the outer wall of one side of the mounting base (204), a connecting block (402) abutting against the outer wall of one side of the fixing block (401), a hydraulic cylinder (404) fixed to the outer wall of one end of the connecting block (402), and a fixing seat (405) fixed to the outer wall of one end of the piston rod of the hydraulic cylinder (404). Each of the two mounting bases (204) is provided with a clamping assembly (5) on one side. The clamping assembly (5) includes a mounting shaft (501) with both ends passing through and connected to the outer wall of one side of the two triangular connecting rods (302) by bearings, two second mounting blocks (502) respectively connected to the outer walls of both ends of the mounting shaft (501) by bolts, a clamping plate (503) connected to the outer wall of one side of the two second mounting blocks (502) by bolts, and two torsion springs (504) respectively sleeved on the outer walls of both ends of the mounting shaft (501).

2. The gripping device for a palletizer according to claim 1, characterized in that, The bottom of the connecting seat (101) has two side plates (102) connected by bolts on both sides of the outer wall, and two fixing plates (103) are respectively fixed on one side of the outer wall of the two side plates (102).

3. The gripping device for a palletizer according to claim 1, characterized in that, One end of each of the two screws (203) is connected to the outer wall of one side of the two fixed plates (103) by bearings. Two slides are opened on the top outer wall of the connecting seat (101). Two slide rods (205) are fixed on the top outer wall of each of the two mounting seats (204), and the four slide rods (205) are slidably installed in the two slides. Limit bolts are screwed onto the upper outer wall of each of the four slide rods (205).

4. The gripping device for a palletizer according to claim 2, characterized in that, Both of the side plates (102) have channels on their lower outer walls, and the two ends of the connecting shaft (301) are slidably installed in the two channels respectively.

5. The gripping device for a palletizer according to claim 1, characterized in that, A fixing rod (403) is fixed on one side of the outer wall of the connecting block (402), and the fixing rod (403) passes through and is connected to one side of the outer wall of the fixing block (401) through a bearing. The fixing seat (405) is connected to the outer wall of the fixing shaft (303) by bolts.

6. The gripping device for a palletizer according to claim 1, characterized in that, Two fixing holes are opened on one side of the outer wall of each of the two clamping plates (503), and mounting openings are opened on one side of the outer wall of each of the four triangular connecting rods (302). The lower part of the two torsion springs (504) is inserted into the two fixing holes on one side of the outer wall of the clamping plate (503), and the upper part of the two torsion springs (504) is inserted into the mounting openings on one side of the outer wall of the two triangular connecting rods (302).

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