Material feeding device

Abstract

The utility model relates to the field of material feeding systems of metal processing production lines, in particular to a material feeding device. Comprising a feeding system, a discharging system, a workpiece transferring system and a workpiece positioning system, and the workpiece transferring system grabs a workpiece to be machined and places the workpiece on the workpiece positioning system; the workpiece positioning system comprises a material bearing table which is horizontally arranged and used for containing workpieces, two baffles which are perpendicular to each other are arranged on the two adjacent side edges of the material bearing table in an L shape, a plurality of material moving devices which are arranged in parallel are arranged on the upper surface of the material bearing table, and the workpieces are pressed on the material moving devices. The workpieces are driven by friction force of the material moving device to move towards the two baffles at the same time. According to the technical scheme, a pushing air cylinder is not needed to position the workpieces, and the material moving device drives the workpieces on the material moving device to be close to the two baffles at the same time. And the damage of the pushing cylinder to the surface of the workpiece is reduced.

Description

Technical Field

[0001] The utility model relates to the field of material feeding systems for metal processing production lines, and particularly to a material feeding device. Background Art

[0002] During the production process of the metal shells of 3C digital products, they need to go through multiple steps such as blanking, cutting, sandblasting, anodic oxidation, and dyeing. After the sandblasting process of the part materials is completed, the sandblasted surface needs to be protected to avoid being bumped. Therefore, after the sandblasting process, the workpieces will be placed in a special tray for temporary storage.

[0003] When the next process needs to be carried out, a feeding device is required to take out the workpieces from the tray one by one, and then a manipulator grabs the workpieces and transports them to the next process. The positions of the workpieces in the tray are randomly distributed. Therefore, the feeding device needs to be provided with a positioning system. The feeding device places the workpieces on the positioning system, and then the positioning system moves the workpieces to specific positions. Thus, it is ensured that the positions of the workpieces grabbed by the manipulator are consistent.

[0004] The existing positioning system is provided with two positioning cylinders in the X-axis direction and the Y-axis direction. The positioning cylinders are used to push the workpieces from the X and Y axial directions. The workpieces are pushed onto two positioning baffles arranged in an L shape along the X and Y directions, thereby positioning the workpieces. However, this method is prone to the knocking and scratching of the sandblasted surface of the workpieces by the pushing parts of the cylinders. This results in a decrease in the yield rate of the workpieces. Summary of the Utility Model

[0005] In view of the above deficiencies or defects in the prior art, the utility model provides a material feeding device, and the positioning system of the material feeding device will not cause impact on the workpieces and protects the processing surfaces of the workpieces.

[0006] The material feeding device includes a feeding system, a discharging system, a workpiece transfer system, and a workpiece positioning system. The workpiece transfer system grabs the workpieces to be processed and places them on the workpiece positioning system; the workpiece positioning system includes a bearing table horizontally arranged for placing workpieces. Two adjacent sides of the bearing table are provided with two mutually perpendicular baffles arranged in an L shape. A plurality of parallel moving devices are arranged on the upper surface of the bearing table, and the workpieces are pressed on the moving devices. The workpieces are driven by the frictional force of the moving devices and move towards the two baffles at the same time.

[0007] In some embodiments, the moving device is a plurality of rollers arranged on the upper surface of the bearing table. The plurality of rollers are parallel to each other and arranged at intervals in the horizontal direction; the tangent direction of the upper edge movement of the rollers points to the included angle of the two baffles.

[0008] In some embodiments, the moving device is a conveyor belt arranged on the upper surface of the bearing table, and the feeding direction of the conveyor belt points to the included angle of the two baffles.

[0009] In some embodiments, the top of the material transfer device is higher than the upper surface of the material receiving table, and the workpiece is pressed against the upper edge of the material transfer device.

[0010] In some embodiments, guide rollers are installed on the side of the baffle near the workpiece, and a plurality of guide rollers are arranged at intervals along the horizontal direction of the baffle.

[0011] In some embodiments, a driving motor is connected to the material transfer device, and the driving motor drives the material transfer device to roll, thereby driving the workpiece on the material transfer device to move.

[0012] In some embodiments, the driving motor is always turned on when the material feeding device is working.

[0013] Applying the above technical solution of the present invention to a material feeding device has the following effects:

[0014] For the positioning system of the prior art material feeding device, the positioning method of using a cylinder to push the workpiece has a large impact force on the cylinder and the workpiece. Moreover, after the cylinder pushes the workpiece, the workpiece will hit the baffle at a relatively high speed, and it is relatively easy to damage the corners of the workpiece.

[0015] In this application, the cylinder for pushing the workpiece is removed, and a material transfer device is directly arranged on the loading table. The material transfer device uses friction to move the workpiece placed thereon in a specific direction, specifically moving towards the included angle of the two baffles. The movement of the workpiece can be decomposed into two mutually perpendicular directions, respectively towards the two baffles. When the workpiece first contacts one of the baffles, the other movement component will continue to move until the two sides of the workpiece are respectively aligned with the two baffles. Then the manipulator takes away the workpiece.

[0016] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation part. Brief Description of the Drawings

[0017] Figure 1 is a perspective view of an embodiment in the prior art;

[0018] Figure 2 is Figure 1 the top view of

[0019] Figure 3 is the top view of Embodiment 2 of this application;

[0020] Figure 4 is Figure 3 the schematic diagram after placing the workpiece in

[0021] Figure 5 is the schematic diagram during the movement of the workpiece.

[0022] Description of the Reference Numerals

[0023] 1 - Feeding system; 2 - Discharging system; 3 - Workpiece transfer system; 4 - Positioning system; 4a - Loading table; 4b - Baffle; 4c - Material transfer device; 5 - Workpiece Detailed Embodiment

[0024] The following provides a detailed description of the specific embodiments of the present invention. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention

[0025] In the present invention, unless otherwise stated, the orientation terms such as "upper" and "lower" generally refer to the orientation in the assembled and used state. "Inner" and "outer" refer to the inner and outer relative to the contour of each component itself

[0026] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present invention described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices

[0027] The present invention provides a material loading device, which includes a feeding system 1, a discharging system 2, a workpiece transfer system 3 and a workpiece 5 positioning system 4. The workpiece transfer system 3 grabs the workpiece 5 to be processed and places it on the workpiece 5 positioning system 4

[0028] The workpiece 5 positioning system 4 includes a horizontally arranged loading table 4a for placing the workpiece 5. Two adjacent sides of the loading table 4a are provided with two mutually perpendicular baffles 4b in an L shape. A plurality of parallel material transfer devices 4c are arranged on the upper surface of the loading table 4a. The workpiece 5 is pressed on the material transfer device 4c, and the workpiece 5 is driven by the frictional force of the material transfer device 4c and moves towards the two baffles 4b at the same time

[0029] The metal casings of digital 3C products are generally rectangular. By pressing two adjacent sides of the rectangular workpiece 5 against two mutually perpendicular baffles 4b. At this time, the position of the workpiece 5 is accurately positioned by the two baffles 4b. The traditional method of pushing the workpiece 5 towards the baffle 4b by the top push of the air cylinder is likely to scratch the sprayed processing surface on the surface of the workpiece 5, leaving slight scratches on the workpiece 5. Although this degree of damage will not affect the mechanical properties of the workpiece 5, as an important part of the appearance of electronic consumer products, if there are scratches on the metal casing, it will seriously affect the sales of the product.

[0030] Therefore, this application modifies the positioning method of the workpiece 5. A movable material transfer device 4c is provided on the upper surface of the material receiving table 4a of the positioning system 4. After the workpiece 5 is placed on the material transfer device 4c, it is driven by the frictional force of the material transfer device 4c and moves towards the two baffles 4b. Finally, the two sides of the workpiece 5 are fitted with the two baffles 4b to achieve the positioning of the workpiece 5. The workpiece 5 is driven by the frictional force of the material transfer device 4c and moves towards the two baffles 4b at the same time.

[0031] This application gives two specific implementation manners for the driving method of using the frictional force of the material transfer device 4c to drive the workpiece 5 to move towards the two baffles 4b.

[0032] Embodiment 1: The material transfer device 4c is a plurality of rollers provided on the upper surface of the material receiving table 4a. The plurality of rollers are parallel to each other and are spaced at intervals in the horizontal direction; the tangent direction of the upper edge movement of the rollers points to the included angle of the two baffles 4b. The rollers rotate actively. When the rollers rotate, the workpiece 5 will be driven by the frictional force of the rollers and move towards the two baffles 4b. After the movement speed is decomposed, the sub-movements respectively towards the two baffles 4b are obtained.

[0033] Embodiment 2: The material transfer device 4c is a conveyor belt provided on the upper surface of the material receiving table 4a. The feeding direction of the conveyor belt points to the included angle of the two baffles 4b. The workpiece transfer system 3 of the feeding device will directly place the workpiece 5 on the conveyor belt, and the conveyor belt carries the workpiece 5 and moves towards the baffle 4b.

[0034] For these two implementation manners of this application, if the angle deviation of the workpiece 5 is too large and exceeds 45°, it will no longer be effective. However, in actual situations, the angle deviation of the workpiece 5 generally does not exceed 5°. Moreover, in the prior art, the positioning method using the top push of the air cylinder will also no longer be effective if the angle deviation of the workpiece 5 exceeds 45°.

[0035] The top of the material transfer device 4c is higher than the upper surface of the material receiving table 4a, and the workpiece 5 is pressed against the upper edge of the material transfer device 4c. That is, after the workpiece 5 is placed on the material receiving table 4a, it is directly in contact with the material transfer device 4c and will not be in contact with the surface of the material receiving table 4a.

[0036] To facilitate the posture correction of the workpiece 5, guide rollers are installed on the side edge of the baffle 4b close to the workpiece 5, and a plurality of the guide rollers are arranged at intervals along the horizontal direction of the baffle 4b. After the workpiece 5 first contacts one of the baffles 4b, the workpiece 5 will continue to move towards the other baffle 4b. At this time, the rollers on the side edge of the baffle 4b facilitate the sliding of the workpiece 5 along the side edge of the baffle 4b.

[0037] A driving motor is connected to the material transfer device 4c, and the driving motor drives the material transfer device 4c to roll, thereby driving the workpiece 5 on the material transfer device 4c to move. Specifically, it is to drive the rotation of the roller in Embodiment 1, or drive the movement of the conveyor belt in Embodiment 2.

[0038] When the material feeding device works, the driving motor is always turned on. Therefore, this solution does not require the use of sensors for identification work. The feeding system can directly feed the workpiece 5 onto the material receiving table 4a, and wait for a set time to take away the positioned workpiece 5 from a specific position at the included angle of the two baffles 4b.

[0039] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0040] In addition, it should be noted that, in the various specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0041] In addition, any combination can be made between various different embodiments of the present invention, as long as it does not violate the idea of the present invention, it should also be regarded as the content disclosed by the present invention.

Claims

1. Material feeding device, characterized in that: It comprises a feeding system (1), a discharging system (2), a workpiece transfer system (3) and a workpiece (5) positioning system (4), wherein the workpiece transfer system (3) grabs the workpiece (5) to be processed and places it on the workpiece (5) positioning system (4); The positioning system (4) of the workpiece (5) comprises a horizontally arranged material receiving platform (4a) for placing the workpiece (5), two adjacent side edges of the material receiving platform (4a) are provided with two mutually perpendicular baffles (4b) in an L-shape, and a plurality of parallel material moving devices (4c) are provided on the upper surface of the material receiving platform (4a), the workpiece (5) is pressed on the material moving device (4c), and the workpiece (5) is driven by the friction force of the material moving device (4c) to move simultaneously in the direction of the two baffles (4b).

2. The material feeding device according to claim 1, characterized in that: The material transfer device (4c) is a plurality of rollers arranged on the upper surface of the material receiving platform (4a), and the plurality of rollers are parallel to each other and arranged at intervals in the horizontal direction; The tangent direction of the movement of the upper edge of the roller points to the angle between the two baffles (4b).

3. The material feeding device according to claim 1, characterized in that: The material moving device (4c) is a conveyor belt arranged on the upper surface of the material receiving platform (4a), and the feeding direction of the conveyor belt points to the angle between the two baffles (4b).

4. The material feeding device according to claim 1, characterized in that: The top of the material moving device (4c) is higher than the upper surface of the material receiving platform (4a), and the workpiece (5) is pressed on the upper edge of the material moving device (4c).

5. The material feeding device according to claim 1, characterized in that: The baffle plate (4b) is provided with guide rollers on the side close to the workpiece (5), and a plurality of guide rollers are arranged at intervals in the horizontal direction of the baffle plate (4b).

6. The material feeding device according to claim 1, characterized in that: The material moving device (4c) is connected to a driving motor, and the driving motor drives the material moving device (4c) to roll, thereby driving the workpiece (5) on the material moving device (4c) to move.

7. The material feeding device according to claim 6, characterized in that: The driving motor is always turned on when the material feeding device is working.

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