Flower basket feeding device

Abstract

The utility model relates to the field of solar cell production. A flower basket feeding device comprises a feeding conveying belt, laser sensing devices and a limiting device, the limiting device is a limiting rod, each laser sensing device comprises a laser emitting end and a signal receiving end, and the connecting line of the laser emitting ends and the signal receiving ends is perpendicular to the moving direction of the feeding conveying belt. The feeding conveying belt comprises two independent conveying belt sections, namely a front conveying belt section 2 and a rear conveying belt section 1, the number of the laser sensing devices is three, the two laser sensing devices are arranged on the side edge of the rear conveying belt section 1, the laser sensing device is arranged on the side edge of the front conveying belt section 2, and the feeding conveying belt and the laser sensing devices are connected with the PLC through electric signals.

Description

Technical Field

[0001] The utility model relates to the field of solar cell production. Background Art

[0002] The rapid development of the photovoltaic manufacturing industry is inseparable from the updating and iteration of equipment technology. At the same time, the equipment is also diversified. Often, a main equipment manufacturer gradually expands its equipment types to form integrated products of automation and main equipment. This not only reduces equipment costs, but also increases competitive advantages. However, due to the lack of on-site production experience, the details of equipment operation are often not considered and the performance of the equipment cannot be maximized.

[0003] Among the existing equipment in photovoltaic manufacturing, automated equipment accounts for a large proportion and has many types. Since each process has its own characteristics, the equipment is complex and diverse, and many practical operation issues need to be considered. For example, in the loading process of PECVD coating equipment, the loading basket relies on the limiter to limit its over-movement, and the conveyor belt is a section, there is a relative displacement between the basket and the belt, causing belt wear and reducing its service life. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to solve the problem of relative displacement between the flower basket and the belt during the feeding process of the flower basket, which causes the wear of the belt.

[0005] The technical solution adopted by the utility model is: a flower basket feeding device, including a feeding conveyor belt, a laser sensing device, and a limit device, wherein the limit device is a limit rod, each laser sensing device includes a laser emitting end and a signal receiving end, and the connection line between the laser emitting end and the signal receiving end is perpendicular to the movement direction of the feeding conveyor belt, the feeding conveyor belt includes two independent conveyor belts, namely a front conveyor belt 2 and a rear conveyor belt 1, there are three laser sensing devices, two laser sensing devices are provided on the side of the rear conveyor belt 1, and one laser sensing device is provided on the side of the front conveyor belt 2, and the feeding conveyor belt and the laser sensing device are both electrically connected to the PLC.

[0006] The distance between the axial centers of the rear head transmission shaft 9 of the front conveyor belt 2 and the rear head transmission shaft 8 of the rear conveyor belt 1 is 1-5 cm.

[0007] The limiting rod is installed on one side of the rear tail transmission shaft 6 of the rear conveyor belt 1, and the distance from the top of the limiting rod to the horizontal plane where the upper surface of the rear conveyor belt 1 is located is 3-7 cm.

[0008] The two laser sensing devices on the side of the rear section conveyor belt 1 are respectively the first laser sensing device 3 and the second laser sensing device 4, and the laser sensing device on the side of the front section conveyor belt 2 is the third laser sensing device 5. The distance from the first laser sensing device 3 to the rear section tail transmission shaft 6 is 10-15cm, the distance from the second laser sensing device 4 to the rear section head transmission shaft 8 is 15-25cm, and the distance from the third laser sensing device 5 to the front section head transmission shaft is 5-10cm.

[0009] The working principle of the utility model is as follows: when the first laser sensing device and the second laser sensing device have no sensing signals (there is no flower basket here), and the third laser sensing device has a sensing signal (there is a flower basket here), the front conveyor belt and the rear conveyor belt are driven at the same speed to sequentially transmit the loading flower basket to the rear conveyor belt; when the first laser sensing device has a sensing signal, the limit rod pops up to prevent the frontmost flower basket on the rear conveyor belt from moving further forward.

[0010] When the first laser sensing device and / or the second laser sensing device senses a signal (there is a flower basket here), and the third laser sensing device senses a signal (there is a flower basket here), the rear conveyor belt stops transmitting, the front conveyor belt transmits at the set speed, and the loading flower basket is transmitted to the front conveyor belt in sequence.

[0011] The beneficial effect of the utility model is that the utility model divides the flower basket feeding conveying device into two belt sections, front and rear, which can reduce the relative friction between the belt and the flower basket during the feeding process after the limiter pops up, thereby reducing the wear of the belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Among them, 1. rear section conveyor belt, 2. front section conveyor belt, 3. first laser sensing device, 4. second laser sensing device, 5. third laser sensing device, 6. rear section tail transmission shaft, 7. front section head transmission shaft, 8. rear section head transmission shaft, 9. front section tail transmission shaft. DETAILED DESCRIPTION Example 1

[0014] In the production process of solar cell silicon wafers, during the PECVD coating process, the loading is generally achieved through a basket loading device. In the prior art, the basket loading device includes a loading conveyor belt, a laser sensing device, and a limit device. The limit device is a limit rod. Each laser sensing device includes a laser emitting end and a signal receiving end. The connection line between the laser emitting end and the signal receiving end is perpendicular to the movement direction of the loading conveyor belt. When the laser sensing device senses that the basket has reached the front of the limit rod, it sends a signal to the PLC. The loading conveyor belt connected to the PLC does not stop directly, but reduces the speed or continues to run at the original speed. The front basket is blocked by the limit rod, and the rear basket continues to be loaded under the action of the loading conveyor belt, which will cause the front basket to rub against the loading conveyor belt.

[0015] In the present embodiment, the above contents have been improved by changing the existing one-stage feeding conveyor belt into two or more sections of feeding belts. Each section of feeding belt has an independent transmission device, and can realize independent operation or stop.

[0016] In one embodiment, a flower basket loading device is provided, wherein the loading conveyor belt comprises two independent conveyor belt sections, namely a front conveyor belt 2 and a rear conveyor belt 1, and there are three laser sensing devices, two laser sensing devices are provided on the side of the rear conveyor belt 1, and one laser sensing device is provided on the side of the front conveyor belt 2, and the loading conveyor belt and the laser sensing device are both electrically connected to a PLC.

[0017] The distance between the axial centers of the rear head transmission shaft 9 of the front conveyor belt 2 and the rear head transmission shaft 8 of the rear conveyor belt 1 is 3 cm.

[0018] The limiting rod is installed on one side of the rear tail transmission shaft 6 of the rear conveyor belt 1, and the distance from the top of the limiting rod to the horizontal plane where the upper surface of the rear conveyor belt 1 is located is 5 cm.

[0019] The two laser sensing devices on the side of the rear section conveyor belt 1 are respectively the first laser sensing device 3 and the second laser sensing device 4, and the laser sensing device on the side of the front section conveyor belt 2 is the third laser sensing device 5. The distance from the first laser sensing device 3 to the rear section tail transmission shaft 6 is 15 cm, the distance from the second laser sensing device 4 to the rear section head transmission shaft 8 is 20 cm, and the distance from the third laser sensing device 5 to the front section head transmission shaft is 8 cm.

[0020] During use, when the first laser sensing device and the second laser sensing device have no sensing signals (there is no flower basket here), and the third laser sensing device has a sensing signal (there is a flower basket here), the front conveyor belt and the rear conveyor belt are driven at the same speed to transmit the loading flower basket to the rear conveyor belt in turn; when the first laser sensing device has a sensing signal, the limit rod pops up to prevent the front flower basket on the rear conveyor belt from moving further forward.

[0021] When the first laser sensing device and / or the second laser sensing device senses a signal (there is a flower basket here), and the third laser sensing device senses a signal (there is a flower basket here), the rear conveyor belt stops transmitting, the front conveyor belt transmits at the set speed, and the loading flower basket is transmitted to the front conveyor belt in sequence.

[0022] The laser sensing device is used to control the feeding of the flower basket in sections. During the continuous feeding process, the wear time between the flower basket and the belt can be reduced by half, and the service life of the belt can be extended by half, thus improving the reliability of equipment operation and reducing the failure rate.

Claims

1. A flower basket feeding device, comprising a feeding conveyor belt, a laser sensing device, and a limit device, wherein the limit device is a limit rod, each laser sensing device comprises a laser emitting end and a signal receiving end, and the connecting line between the laser emitting end and the signal receiving end is perpendicular to the moving direction of the feeding conveyor belt, characterized in that: The loading conveyor belt comprises two independent conveyor belt sections, namely a front conveyor belt (2) and a rear conveyor belt (1). There are three laser sensing devices, two laser sensing devices are located on the side of the rear conveyor belt (1), and one laser sensing device is located on the side of the front conveyor belt (2). The loading conveyor belt and the laser sensing device are both connected to the PLC via electrical signals.

2. A flower basket feeding device according to claim 1, characterized in that: The distance between the axial centers of the rear head transmission shaft (9) of the front conveyor belt (2) and the rear head transmission shaft (8) of the rear conveyor belt (1) is 1-5 cm.

3. A flower basket feeding device according to claim 1, characterized in that: The limiting rod is installed on one side of the rear tail transmission shaft (6) of the rear conveyor belt (1), and the distance from the top of the limiting rod to the horizontal plane where the upper surface of the rear conveyor belt (1) is located is 3-7 cm.

4. A flower basket feeding device according to claim 1, characterized in that: The two laser sensing devices on the side of the rear conveyor belt (1) are respectively a first laser sensing device (3) and a second laser sensing device (4); the laser sensing device on the side of the front conveyor belt (2) is a third laser sensing device (5); the distance between the first laser sensing device (3) and the rear tail transmission shaft (6) is 10-15 cm; the distance between the second laser sensing device (4) and the rear head transmission shaft (8) is 15-25 cm; and the distance between the third laser sensing device (5) and the front head transmission shaft is 5-10 cm.

Images