Sheet taking device of automatic sheet loading and unloading equipment

Abstract

The utility model relates to the field of sheet feeding, and discloses an automatic sheet loading and unloading equipment sheet taking device which comprises a base, a mechanical arm is arranged above the base, a pneumatic suction cup is installed on the mechanical arm, an installation base is fixed above the base, a placing plate is installed above the installation base in an up-down lifting mode, and the placing plate is fixed on the base. The device comprises a placing plate, the middle of the placing plate is sunken to form a round hole, a weighing sensor is installed in the round hole, a weighing plate is arranged above the weighing sensor, positioning plates are arranged at the four corners of the upper portion of the placing plate in a sliding mode, and the four positioning plates are distributed in a square structure. Four positioning plates distributed in a square structure, a manipulator and a pneumatic suction cup are arranged on the placing plate, the manipulator can automatically extract sheet products to be machined, a weighing plate and a weighing sensor are arranged in a matched mode, the magnitude of force applied by the manipulator can be detected, the situation that the manipulator is out of control and squeezes fragments can be prevented, and the production efficiency is improved. And the reject ratio of products is reduced.

Description

Technical Field

[0001] The utility model relates to the field of sheet material loading, in particular to a sheet taking device of an automatic sheet loading and unloading device. Background Art

[0002] When processing plastic products by CNC, the loading of the products to be processed is generally manual. Since the large-size ultra-thin products are extremely thin (the size is usually 80*80*0.2 to 100*100*0.2), when manually placing the products to be processed, because such sheets are extremely thin and brittle materials, it is easy to crush them when workers hold them with improper force, resulting in fragments. The defective rate is generally about 3%, which makes the production cost relatively high. For this reason, we have designed a sheet taking device for an automatic sheet loading and unloading device. Summary of the Utility Model

[0003] To solve the technical problem that it is easy to crush the sheet when workers hold it with improper force and easy to generate fragments, the utility model provides a sheet taking device for an automatic sheet loading and unloading device.

[0004] The utility model is realized by the following technical solutions: A sheet taking device for an automatic sheet loading and unloading device includes a base. Above the base, there is a manipulator, and a pneumatic suction cup is installed on the manipulator. Above the base, a mounting seat is fixed. Above the mounting seat, a placement plate is installed in a vertically movable manner. A round hole is formed by depression in the middle of the placement plate. A weighing sensor is installed in the round hole. Above the weighing sensor, there is a weighing plate. At the four corners above the placement plate, positioning plates are slidably arranged, and the four positioning plates are distributed in a square structure.

[0005] As a further improvement of the above solution, a fixing frame is arranged between the manipulator and the mounting seat. Two symmetrically distributed electromagnetic valves are installed on the fixing frame. The air outlet end of the electromagnetic valve is installed with a spray pipe. The inlet end of the electromagnetic valve is connected to the air outlet end of an external air compressor through a hose. Compressed gas can be blown onto the surface of the sheet product, so as to remove the dirt on it and can automatically clean the fragments of the broken sheet.

[0006] As a further improvement of the above solution, the positioning plate is in an L-shaped structure, and the top end of the inner side surface of the positioning plate is designed with a rounded corner to form an arc surface. The structure of the arc surface makes the opening above the positioning plate larger, which is convenient for the sheet to be placed in the space formed by the four positioning plates and avoids scratching the lower surface of the sheet.

[0007] As a further improvement of the above solution, the placement plate is of a square structure, and four evenly distributed adjustment sliding grooves are provided on the placement plate. The four adjustment sliding grooves are respectively opened on the four diagonals of the placement plate. The product sheet is of a square structure, and the shape formed by the movement of the four positioning plates along the diagonal is still a square structure, which is convenient for positioning and placing the sheet.

[0008] As a further improvement of the above solution, an adjustment slider is provided at the bottom end of the positioning plate, and the cross-section of the adjustment slider is of a convex shape. The cross-section of the adjustment sliding groove is of a convex shape. The adjustment slider is slidably placed in the adjustment sliding groove, and the position of the positioning plate can be quickly moved correspondingly, so as to change the size of the structure formed by them, and it is applicable to sheet products of various different sizes;

[0009] A locking screw is provided on the adjustment slider, and a locking nut is threadedly connected to the locking screw. A scale is also provided on the placement plate, which is convenient for determining the moving distance of the positioning plate, so that the moving distances of the four positioning plates are exactly the same.

[0010] As a further improvement of the above solution, the upper surface of the weighing plate is flush with the upper surface of the placement plate, which is convenient for placing the sheet product, and the lower surface of the positioning plate is in sliding contact with the upper surface of the placement plate.

[0011] As a further improvement of the above solution, three mounting holes are provided on the upper surface of the mounting seat. The mounting holes extend downward through the base, and the three mounting holes are distributed in an equilateral triangle structure. A lifting cylinder is installed in the mounting holes, and the push rod of the lifting cylinder is connected to the lower surface of the placement plate, which can make the placement plate rise as needed, so that the upper surface of each sheet product can be blown by the compressed air flow.

[0012] As a further improvement of the above solution, the lifting height of the placement plate each time is the thickness of a unit sheet product. After taking one sheet, the sheet below will rise by the height of one sheet unit, so that the upper surface of each sheet product can be blown by the compressed air flow.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By providing four positioning plates distributed in a square structure on the placement plate, cooperating with the provided manipulator and pneumatic suction cup, the manipulator can automatically extract the sheet product to be processed. Cooperating with the provided weighing plate and weighing sensor, the magnitude of the force exerted by the manipulator can be detected, which can prevent the manipulator from squeezing and fragmenting out of control, and reduce the defective rate of the product;

[0015] 2. The four positioning plates are distributed in a square structure and cooperate with the adjustment sliding grooves arranged on the diagonal line. The positioning plates can be adjusted to corresponding positions as needed, making them applicable to sheet products of various different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a sheet picking device of an automatic sheet loading and unloading device provided by the present utility model;

[0017] Figure 2 FIG. Figure 1 FIG. 2 is an enlarged schematic diagram of the structure at A in FIG. 1;

[0018] Figure 3 FIG. Figure 1 FIG. 3 is a schematic diagram of the structure without a placement plate in FIG. 1;

[0019] Figure 4 FIG. Figure 1 FIG. 4 is a front view of FIG. 1;

[0020] Figure 5 FIG. 5 is a top view of the placement plate.

[0021] MAIN SYMBOL DESCRIPTION:

[0022] 1. Base; 2. Mounting seat; 21. Mounting hole; 3. Placement plate; 31. Adjustment sliding groove; 4. Weighing plate; 5. Positioning plate; 51. Arc surface; 52. Adjustment slider; 53. Locking screw; 6. Solenoid valve; 61. Fixed frame; 62. Spray pipe; 7. Manipulator; 71. Pneumatic suction cup; 8. Lifting cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, in combination with the drawings and specific embodiments, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0024] Embodiment:

[0025] Please refer to Figures 1 - 5 , a sheet picking device of an automatic sheet loading and unloading device in this embodiment includes a base 1. A manipulator 7 is arranged above the base 1, and a pneumatic suction cup 71 is installed on the manipulator 7. An installation seat 2 is fixed above the base 1, and a placement plate 3 is installed above the installation seat 2 in a vertically movable manner. A circular hole is formed in the middle of the placement plate 3 and a weighing sensor is installed in the circular hole. A weighing plate 4 is arranged above the weighing sensor. Four positioning plates 5 are slidably arranged at the four corners above the placement plate 3, and the four positioning plates 5 are distributed in a square structure.

[0026] A fixing bracket 61 is provided between the manipulator 7 and the mounting base 2. Two symmetrically distributed solenoid valves 6 are installed on the fixing bracket 61. A nozzle 62 is installed at the air outlet end of the solenoid valve 6. The inlet end of the solenoid valve 6 is connected to the air outlet end of an external air compressor through a hose. Compressed air can be blown onto the surface of the sheet product, thereby removing the dirt above it and automatically cleaning the broken sheet fragments.

[0027] The positioning plate 5 is in an L-shaped structure, and the top of the inner side surface of the positioning plate 5 is designed with rounded corners to form an arc surface 51. The structure of the arc surface 51 makes the opening above the positioning plate 5 larger, facilitating the placement of the sheet in the space formed by the four positioning plates 5 and avoiding scratches on the lower surface of the sheet.

[0028] The placement plate 3 is in a square structure, and four uniformly distributed adjustment chutes 31 are provided on the placement plate 3. The four adjustment chutes 31 are respectively opened on the four diagonals of the placement plate 3. The product sheet is in a square structure, and the shape formed by the four positioning plates 5 moving along the diagonal is still a square structure, facilitating the positioning and placement of the sheet.

[0029] An adjustment slider 52 is provided at the bottom end of the positioning plate 5, and the cross-section of the adjustment slider 52 is in a convex shape. The cross-section of the adjustment chute 31 is in a convex shape. The adjustment slider 52 slides in the adjustment chute 31, enabling the position of the positioning plate 5 to be quickly moved accordingly, thereby changing the size of the structure formed by them and being applicable to sheet products of various different sizes.

[0030] A locking screw 53 is provided on the adjustment slider 52. A locking nut is threadedly connected to the locking screw 53. A scale is also provided on the placement plate 3, thereby facilitating the determination of the moving distance of the positioning plate 5 and ensuring that the moving distances of the four positioning plates 5 are exactly the same.

[0031] The upper surface of the weighing plate 4 is flush with the upper surface of the placement plate 3, facilitating the placement of the sheet product, and the lower surface of the positioning plate 5 is in sliding contact with the upper surface of the placement plate 3.

[0032] Three mounting holes 21 are provided on the upper surface of the mounting base 2. The mounting holes 21 extend downward through the base 1, and the three mounting holes 21 are distributed in an equilateral triangle structure. A lifting cylinder 8 is installed in the mounting holes 21. The push rod of the lifting cylinder 8 is connected to the lower surface of the placement plate 3, enabling the placement plate 3 to be lifted as needed, so that the upper surface of each sheet product can be blown by the compressed air flow.

[0033] The lifting height of the placement plate 3 each time is the thickness of a single sheet product. After taking one sheet, the sheet below will rise by the height of one sheet unit, so that the upper surface of each sheet product can be blown by the compressed air flow.

[0034] In the embodiment of the present application, the implementation principle of the sheet taking device of an automatic sheet loading and unloading device is as follows: The positions of the four positioning plates 5 are adjusted according to the size of the sheet product. Specifically, loosen the locking nut on the locking screw 53, and then move the positioning plate 5 along the adjustment chute 31 on the diagonal line so that the size of the new square structure formed by the four positioning plates 5 is consistent with the size of the sheet product. Then tighten the locking nut. After that, stack multiple sheet products on the weighing plate 4 and place them between the four positioning plates 5. The manipulator 7 will grab them through the pneumatic suction cup 71 above and place them on the CNC for feeding. The design of the weighing sensor can detect the magnitude of the force exerted by the manipulator 7 and prevent the manipulator 7 from squeezing the fragments out of control;

[0035] By arranging four positioning plates 5 distributed in a square structure on the placement plate 3, cooperating with the arranged manipulator 7 and the pneumatic suction cup 71, the manipulator 7 can automatically extract the sheet products to be processed. Cooperating with the arranged weighing plate 4 and the weighing sensor, the magnitude of the force exerted by the manipulator 7 can be detected, which can prevent the manipulator 7 from squeezing the fragments out of control and reduce the defective rate of the products;

[0036] With the four positioning plates 5 distributed in a square structure and cooperating with the adjustment chutes 31 on the diagonal line, the positioning plates 5 can be adjusted to corresponding positions as needed to make them suitable for sheet products of various different sizes.

[0037] The above-mentioned implementation manners are only the preferred implementation manners of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention fall within the scope of protection required by the present invention.

Claims

1. An automatic loading and unloading device's sheet picking device, including a base (1), above which a manipulator (7) is arranged, and a pneumatic suction cup (71) is installed on the manipulator (7), characterized in that, Above the base (1), a mounting seat (2) is fixed. Above the mounting seat (2), a placing plate (3) is installed in a vertically liftable manner. A circular hole is formed by recessing in the middle of the placing plate (3). A weighing sensor is installed in the circular hole. Above the weighing sensor, a weighing plate (4) is provided. At the four corners above the placing plate (3), positioning plates (5) are slidably arranged, and the four positioning plates (5) are distributed in a square structure.

2. The pick-up device of an automatic sheet loading and unloading device according to claim 1, characterized in that Between the manipulator (7) and the mounting seat (2), a fixing frame (61) is provided. Two symmetrically distributed electromagnetic valves (6) are installed on the fixing frame (61). A spray pipe (62) is installed at the air outlet end of the electromagnetic valve (6). The inlet end of the electromagnetic valve (6) is connected to the air outlet end of an external air compressor through a hose.

3. The sheet picking device of an automatic sheet loading and unloading device according to claim 1, characterized in that The positioning plate (5) has an L-shaped structure, and an arc surface (51) is formed by rounding the top end of the inner side surface of the positioning plate (5).

4. The pick-up device of an automatic sheet loading and unloading device according to claim 1, characterized in that The placing plate (3) has a square structure, and four uniformly distributed adjustment sliding grooves (31) are formed on the placing plate (3). The four adjustment sliding grooves (31) are respectively formed on the four diagonals of the placing plate (3).

5. The pick-up device of an automatic sheet loading and unloading device according to claim 4, characterized in that, At the bottom end of the positioning plate (5), an adjustment slider (52) is provided. The cross-section of the adjustment slider (52) is in a convex shape. The cross-section of the adjustment sliding groove (31) is in a convex shape. The adjustment slider (52) is slidably placed in the adjustment sliding groove (31); On the adjustment slider (52), a locking screw (53) is provided. A locking nut is threadedly connected to the locking screw (53).

6. The sheet picking device of an automatic sheet loading and unloading device according to claim 1, characterized in that The upper end surface of the weighing plate (4) is flush with the upper end surface of the placing plate (3), and the lower end surface of the positioning plate (5) is in sliding contact with the upper end surface of the placing plate (3).

7. The pick-up device of an automatic sheet loading and unloading device according to claim 1, characterized in that, On the upper end surface of the mounting seat (2), three mounting holes (21) are formed. The mounting holes (21) extend downward through the base (1), and the three mounting holes (21) are distributed in an equilateral triangle structure. A lifting cylinder (8) is installed in the mounting holes (21). The push rod of the lifting cylinder (8) is connected to the lower surface of the placing plate (3).

8. The pick-up device of an automatic sheet loading and unloading device according to claim 1, characterized in that, Each time the placing plate (3) lifts, the height is the thickness of a single unit sheet product.

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