Automatic slab feeding machine suitable for conveying stone slabs through belt

Abstract

The utility model relates to the field of slab feeding machines, in particular to an automatic slab feeding machine suitable for conveying stone slabs through a belt. The plate feeding machine comprises a plate feeding machine body, a lifting mechanism is arranged on the side, close to a belt, of the bottom of the plate feeding machine body, and the lifting mechanism lifts the single side of the plate feeding machine body. The single-side lifting mechanism is arranged at the bottom of the plate feeding machine, on the premise that the accurate plate feeding position of the plate feeding machine is guaranteed, the height difference is formed between the plate feeding position and the belt, and plates rising in the inclined direction are lowered to the original horizontal position to be in lap joint with the belt after running to a certain position; the friction force between the plate and the belt is ensured to be large enough, and sliding between the plate and the belt is not caused, so that the distance between the adjacent plates on the belt is relatively unchanged, the requirement of simultaneous working of multiple stations and multiple procedures on the belt is met, and the subsequent machining precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of loading machines, and in particular to an automatic loading machine adapted to belt conveying of stone slabs. Background Technology

[0002] In the sheet metal processing industry, a loading machine is often used to transport sheets stacked at an angle to a conveyor belt for automatic feeding. Because the contact area between the sheet metal and the conveyor belt is large, and given their significant weight, it is difficult to adjust their position on the belt surface. Therefore, the initial loading position on the belt is crucial. Existing loading methods use rollers on the loading machine to push the sheet metal onto the moving conveyor belt. However, due to the different frictional forces between the rollers and the sheet metal, the pushing time and position of each sheet metal will have different deviations, affecting subsequent precise processing. Although robotic arms are used to transfer materials between the loading machine and the conveyor belt, the large weight of the sheet metal and the high cost of the robotic arms increase production costs. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide an automatic board loading machine that is suitable for belt conveying of stone slabs, which has the advantages of simple structure, synchronous board overlapping and small error.

[0004] This utility model provides an automatic loading machine adapted to belt conveying of stone slabs, including a loading machine body. The bottom of the loading machine body is provided with a lifting mechanism on the side near the belt. The lifting mechanism lifts one side of the loading machine body. When the loading machine is started, the slabs are transported upward along the inclined direction to the top of the belt.

[0005] Furthermore, the board-mounting machine also includes a limiting track. At least four rollers are symmetrically arranged inside the board-mounting machine body. Each roller has a limiting protrusion on one side near the center of the board-mounting machine body. The top of the limiting track has a groove corresponding to the shape of the roller. The left and right sidewalls of the groove are inclined to the sides.

[0006] Furthermore, the lifting mechanism is an airbag, which is connected to an external inflation device. The inflation state of the airbag is controlled to achieve the lifting of the upper platen body.

[0007] Furthermore, the top of the airbag is provided with an air inlet for connecting to an external inflation device, and the bottom of the airbag is provided with an abutment portion.

[0008] Furthermore, the lifting mechanism includes a swing rod and a stop. One end of the swing rod is rotatably connected to the side wall at the bottom of the upper platen body, and the other end of the swing rod is provided with a second roller. The length of the swing rod is greater than the distance from the connection point between the swing rod and the upper platen body to the track. The stop is located above the track. During operation, the second roller is closer to the stop than the connection point between the swing rod and the upper platen body.

[0009] Furthermore, the lifting mechanism also includes an auxiliary rod, one end of which is connected to the swing rod, and the other end of which is separated from the swing rod by a distance not less than the length of the stop block.

[0010] Furthermore, the auxiliary rod is L-shaped.

[0011] Furthermore, the rotation angle of the swing arm connected to the upper plate mechanism body is no higher than 45°.

[0012] By adopting the above technical solution, the beneficial effects of this utility model are:

[0013] This invention features a single-sided lifting mechanism at the bottom of the loading machine. While ensuring precise loading of the plate, a height difference is created between the plate and the conveyor belt. The plate, rising along an inclined direction, lowers to its original horizontal position after reaching a certain point, overlapping with the belt. This ensures sufficient friction to prevent slippage between the plate and the belt, maintaining a relatively constant spacing between adjacent plates on the belt. This allows for simultaneous operation of multiple stations and processes on the belt, improving subsequent processing accuracy. By fixing the overlap area between the plate and the belt and using plates of the same specifications, the friction is kept constant, significantly reducing the transmission time error between the belt and the loading machine, effectively minimizing the error in the spacing between adjacent plates and improving subsequent processing accuracy. Furthermore, the invention incorporates rollers and corresponding grooves to prevent derailment caused by single-sided lifting.

[0014] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0015] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and illustrations.

[0016] To make the above and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0020] Figure 1 This is a diagram showing the automatic loading machine for conveying stone slabs according to the present invention in the state of overlapping with the belt.

[0021] Figure 2 This is a schematic diagram of the roller and limiting track structure of an automatic loading machine for conveying stone slabs by belt, according to the present invention.

[0022] Figure 3 This utility model provides a schematic diagram of the structure of an automatic loading machine for conveying stone slabs via belt conveyor. Figure 1 ;

[0023] Figure 4 This utility model Figure 3 Schematic diagram of the structure of the central airbag;

[0024] Figure 5 This is a schematic diagram of another structure of an automatic loading machine for conveying stone slabs using a belt conveyor, in motion.

[0025] Figure 6 This is a schematic diagram of another structure of an automatic loading machine for conveying stone slabs using a belt, in the lifting state.

[0026] Explanation of key figure labels:

[0027] 1. The board loading machine body;

[0028] 11. Roller 1; 12. Limiting convex part;

[0029] 2. Lifting mechanism;

[0030] 2a, Airbag; 2a1, Air Intake; 2a2, Contact Part;

[0031] 2b1, Swing lever; 2b2, Stop block; 2b3, Roller II; 2b4, Auxiliary lever;

[0032] 3. Limiting track;

[0033] 31. Groove;

[0034] 4. Belt. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model. Example 1

[0036] Reference Figure 1-4 This utility model provides an automatic loading machine adapted to conveyor belt 4 for transporting stone slabs. It includes a loading machine body 1, which can be any existing loading machine. The loading machine utilizes rollers 11 at its bottom to move the stacking point and the loading point. A lifting mechanism 2 is provided on the bottom of the loading machine body 1 near the conveyor belt 4. The lifting mechanism 2 lifts one side of the loading machine body 1, and starting the loading machine transports the slabs upwards along an inclined direction to above the conveyor belt. The lifting height is slightly higher than the thickness of the slabs. The lifting mechanism 2 can be a telescopic hydraulic cylinder or a pneumatic cylinder. However, given that the maximum lifting height range for existing slab thicknesses is no more than 1 cm, to ensure lifting accuracy and save costs, in this embodiment, the lifting mechanism 2 is an airbag 2a. The airbag 2a is connected to an external inflation device. The inflation device can be a unified inflation system connected to the airbag 2a via pipes, or it can be an air pump or air cylinder that can be mounted on the loading machine. Automated control valves control the inflation and deflation operations, thereby controlling the inflation state of the airbag 2a to lift the loading machine body 1. To improve the stability of the airbag 2a during lifting, the top of the airbag 2a is provided with an air inlet 2a1 for connecting to an external inflation device, and the bottom of the airbag 2a is provided with an abutment part 2a2. The connecting part and the abutment part 2a2 are rigidly connected to the upper platen body 1 and the limiting rail 3 respectively, ensuring the effective area of ​​the airbag 2a.

[0037] This embodiment can operate independently of the track, but in order to prevent positional deviation during unilateral lifting, the upper mechanism also includes a limiting track 3. The upper mechanism body 1 has at least four rollers 11 symmetrically arranged inside. Each roller 11 has a limiting protrusion 12 on one side near the center of the upper mechanism body 1. The top of the limiting track 3 has a groove 31 corresponding to the shape of the roller 11. The left and right sidewalls of the groove 31 are inclined to both sides. The inclined sidewalls provide space for the roller 11 to tilt and provide support after tilting.

[0038] Working principle: When the board-loading machine grabs the board and reaches the designated location, the lifting mechanism 2 is activated to raise one side of it and the rollers on the board-loading machine are activated to make the board extend from one side of the board-loading machine. Then the board-loading machine is reset so that the board overlaps with the belt. At this time, the board leaves the board-loading machine under the traction of the belt. Example 2

[0039] The difference between this embodiment and Embodiment 1 is that the lifting mechanism 2 is different.

[0040] In this embodiment, the lifting mechanism 2 includes a swing rod 2b1 and a stop block 2b2. One end of the swing rod 2b1 is rotatably connected to the side wall at the bottom of the upper platen body 1, and the other end of the swing rod 2b1 is provided with a roller 2b3. The length of the swing rod 2b1 is greater than the distance from the connection point between the swing rod 2b1 and the upper platen body 1 to the track. The stop block 2b2 is located above the track. During operation, the roller 2b3 is closer to the stop block 2b2 than the connection point between the swing rod 2b1 and the upper platen body 1.

[0041] To improve stability after lifting, the lifting mechanism 2 also includes an auxiliary rod 2b4. One end of the auxiliary rod 2b4 is connected to the swing rod 2b1, and the other end of the auxiliary rod 2b4 is separated from the swing rod 2b1 by a distance not less than the length of the stop block 2b2. When the swing rod 2b1 is intercepted by the stop block 2b2, the swing rod 2b1 swings around the roller 2b3. At this time, the angle between the swing rod 2b1 and the upper mechanism body 1 changes, causing the upper mechanism body 1 to be raised. When the swing rod 2b1 is perpendicular to the track, the auxiliary rod 2b4 contacts the ground to prevent further swinging. In this embodiment, the auxiliary rod 2b4 is L-shaped, but it can also be straight. The angle between the straight auxiliary rod 2b4 and the swing rod 2b1 is not greater than 90°. To increase stability after lifting, the swing rod 2b1 and the upper mechanism body 1 can be provided with an intercepting block or a groove 31 so that the rotation angle between the swing rod 2b1 and the upper mechanism body 1 is not greater than 45°.

[0042] Working principle: When the board-loading machine grabs the board and reaches the designated location, the lifting mechanism 2 is activated to raise one side of it and the rollers on the board-loading machine are activated so that the board extends from one side of the board-loading machine until it exceeds its balance point. The board then swings and overlaps with the belt. After overlapping, the board leaves the board-loading machine under the traction of the belt. When the board is completely inside the belt, the board-loading machine is started to move, and at this time the height of the board-loading machine is reset.

[0043] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

Claims

1. An automatic loading machine adapted for conveyor belt transport of stone slabs, comprising a loading machine body, characterized in that, The bottom of the loading machine body is equipped with a lifting mechanism on the side near the belt. This lifting mechanism lifts one side of the loading machine body, and starting the loading machine causes the board to be transported upward along the inclined direction to the top of the belt.

2. The automatic loading machine for conveyor belt transport of stone slabs according to claim 1, characterized in that, It also includes a limiting track. At least four rollers are symmetrically arranged inside the upper platen body. Each roller has a limiting protrusion on one side near the center of the upper platen body. The top of the limiting track has a groove corresponding to the shape of the roller. The left and right sidewalls of the groove are inclined to the sides.

3. The automatic loading machine for belt conveying stone slabs according to any one of claims 1 or 2, characterized in that, The lifting mechanism is an airbag, which is connected to an external inflation device. Controlling the inflation state of the airbag enables the lifting of the upper plate mechanism body.

4. The automatic loading machine for belt conveying stone slabs according to claim 3, characterized in that, The airbag has an air inlet at the top for connecting to an external inflation device, and an abutment at the bottom.

5. The automatic loading machine for belt conveying stone slabs according to claim 2, characterized in that, The lifting mechanism includes a swing arm and a stop block. One end of the swing arm is rotatably connected to the side wall at the bottom of the upper platen body, and the other end of the swing arm is provided with a second roller. The length of the swing arm is greater than the distance from the connection point between the swing arm and the upper platen body to the track. The stop block is located above the track. During operation, the second roller is closer to the stop block than the connection point between the swing arm and the upper platen body.

6. The automatic loading machine for belt conveying stone slabs according to claim 5, characterized in that, The lifting mechanism also includes an auxiliary rod, one end of which is connected to the swing rod, and the other end of which is separated from the swing rod by a distance not less than the length of the stop block.

7. The automatic loading machine for belt conveying stone slabs according to claim 6, characterized in that, The auxiliary rod is L-shaped.

8. The automatic loading machine for belt conveying stone slabs according to any one of claims 5-6, characterized in that, The rotation angle of the swing arm, which is rotatably connected to the upper plate mechanism body, does not exceed 45°.

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