CN216334975U

CN216334975U - Positive and negative state screening device for reducer parts

Info

Publication number: CN216334975U
Application number: CN202122911767.8U
Authority: CN
Inventors: 邱展; 余金林
Original assignee: Wuhan Feituoke Industry Co ltd
Current assignee: Wuhan Feituoke Industry Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-04-19
Anticipated expiration: 2031-11-25

Abstract

The utility model relates to a screening device for positive and negative states of large and small-head parts, which comprises a main body, a conveyor belt and a distribution main board, wherein the conveyor belt is arranged on the main body, the distribution main board stretches across the main body, the side wall of the distribution main board is provided with a distribution surface, the bottom of the distribution main board is provided with a forward copying channel and a reverse copying channel, the included angle between the distribution surface and the vertical axis of the conveyor belt and the included angles between the forward copying channel and the motion axis of the conveyor belt and between the reverse copying channel and the motion axis of the conveyor belt are both 30-50 degrees, and the distribution main board is provided with a tapered transition curved surface above the inlet of the forward copying channel. The automatic screening device has the advantages of simple structure, small volume, uniform screening of products, avoidance of mutual collision of the products, reduction of surface scratches and wide application in automatic screening of high-precision products.

Description

Positive and negative state screening device for reducer parts

Technical Field

The utility model relates to the field of auxiliary feeding of automatic processing machinery, in particular to a screening device for positive and negative states of large and small-head parts.

Background

At present, the most common device for automatically arranging parts from disorder to order is a vibration disc, wherein the vibration disc comprises a hopper, a base plate, a controller, a linear feeder, a storage bin and a photoelectric sensing system.

Because the work piece is screened to the vibration dish needs to utilize the difference in height, so need occupy certain volume, be unsuitable to establish ties and place in continuity automation line. Meanwhile, the vibration disc needs to provide power for the movement of the workpieces by utilizing vibration, the workpieces rub against each other in the vibration process, and the vibration disc is not suitable for screening the workpieces with high precision or sharp ends.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a screening device for the positive and negative states of large and small-head parts, which comprises a main body, a conveyor belt and a distribution main board, wherein the conveyor belt is arranged on the main body, the distribution main board stretches across the main body, the side wall of the distribution main board is provided with a distribution surface, the bottom of the distribution main board is provided with a positive profiling channel and a reverse profiling channel, the included angle between the distribution surface and the vertical axis of the conveyor belt and the included angles between the positive profiling channel and the motion axis of the conveyor belt and between the reverse profiling channel and the motion axis of the conveyor belt are both 30-50 degrees, and the distribution main board is provided with a tapered transition curved surface above the inlet of the positive profiling channel.

Furthermore, a first reverse distributing block and a second reverse distributing block are arranged at the bottom of the distributing main plate, and a reverse profiling channel is formed between the first reverse distributing block and the second reverse distributing block.

Furthermore, the included angle between the parting surface and the axis perpendicular to the conveying belt and the included angles formed by the forward profiling channel and the reverse profiling channel and the movement axis of the conveying belt are both 45 degrees.

The automatic screening device has the advantages of simple structure, small volume, uniform screening of products, avoidance of mutual collision of the products, reduction of surface scratches and wide application in automatic screening of high-precision products.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is an exploded view of the present invention showing another preferred construction;

Detailed Description

To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

Referring to fig. 1-3, the present invention includes a main body 12, a conveyor belt 14, and a main distributing plate 22, wherein the conveyor belt 14 is wound around rollers disposed at both ends of the main body 12, and the rollers are connected to a driving motor. The main distributor plate 22 spans the main body 12 and is fixed to the main body 12 by screws 32. The bottom of the material distribution main plate 22 is provided with a forward copying channel 20 and a reverse copying channel 30, and the cross section of the copying channel is similar to the shape of a product to be screened and is slightly larger than the size of the product. The forward profiling channel 20 only allows forward product to flow in, the reverse profiling channel 30 only allows reverse product to flow in, and the number of flow channels can be increased or decreased as appropriate according to the number of products to be screened on site by the forward profiling channel 20 and the reverse profiling channel 30. The side wall of the material distribution main board 22 is provided with a distribution surface 26, an included angle between the distribution surface 26 and the vertical axis of the conveyor belt 14 is alpha, the included angle alpha is too large, so that a product to be screened is not favorable to entering the profiling channel, the included angle alpha is too small, the flow velocity of the product to be screened is reduced, and the product is easy to block, so that the surface of the product is scratched. Therefore, the included angle alpha is more than or equal to 30 degrees and less than or equal to 50 degrees, which is beneficial for the products to be screened to flow to the profiling channels in turn at uniform speed along the parting surface 26. The included angles between the forward profiling channel 20 and the reverse profiling channel 30 and the movement axis of the conveyor belt 14 are beta, the included angles beta are too large, products to be screened cannot smoothly flow out of the profiling channel and are easy to block, and the included angles beta are too small, so that the products to be screened are easy to be propped by the following products when entering the profiling channel. Therefore, the angle beta is not less than 30 degrees and not more than 50 degrees, when the product to be screened moves along the parting surface, the product behind the product to enter the flow channel is not propped, and the blockage of the flow channel is avoided. In order to match the angle and spacing of the product entering the profiling channel with the speed of movement of the conveyor 14, in a preferred embodiment, the included angles α and β are both 45 °.

The material distributing main plate 22 is provided with a tapered transition curved surface 28 above the inlet of the forward copying channel 20, the transition curved surface 28 is tapered from the upper side of the inlet of the forward copying channel 20 to the lower side of the inlet, and the transition curved surface 28 can enable a forward product to smoothly enter the forward copying channel and enable a reverse product to continuously move to the lower right and enter the reverse copying channel.

In a preferred embodiment of the present invention, the distribution main plate 22 is provided with a first reverse distribution block 16 and a second reverse distribution block 18 at the bottom, see fig. 4 in particular. The first reverse distributor block 16 and the second reverse distributor block 18 are fastened in the rectangular groove 24 at the bottom of the distributor main plate 22 through screws 34, the first reverse distributor block 16 and the second reverse distributor block 18 are distributed in a crossed manner, and the side surfaces of the first reverse distributor block 16 and the second reverse distributor block 18 are machined into profiling surfaces, namely the channel cross sections formed by the adjacent first reverse distributor block 16 and the second reverse distributor block 18 are consistent with the reverse profiling channel 30. The first reverse distributing block 16 and the second reverse distributing block 18 can be replaced by modules with corresponding sizes according to the shapes of products, and the application range is widened.

The material distributing main plate 22, the first reverse material distributing block 16 and the second reverse material distributing block 18 are all made of non-metal materials, and the non-metal materials can reduce scratches on products to be screened.

The utility model has been described with reference to a preferred embodiment, to which the above mentioned examples do not limit the utility model, and from reading the present description a person skilled in the art will be able to conceive of numerous modifications and variations to the structure, any obvious alternative being within the scope of protection of the utility model without departing from the inventive concept.

Claims

1. The screening device for the positive and negative states of the large and small-head parts comprises a main body (12), a conveyor belt (14) and a distribution main board (22), and is characterized in that the conveyor belt (14) is arranged on the main body (12), the distribution main board (22) stretches across the main body (12), a distribution surface (26) is arranged on the side wall of the distribution main board (22), a forward profiling channel (20) and a reverse profiling channel (30) are arranged at the bottom of the distribution main board, the included angle formed by the distribution surface (26) and the vertical axis of the conveyor belt (14) and the included angles formed by the forward profiling channel (20) and the reverse profiling channel (30) and the movement axis of the conveyor belt (14) are both 30-50 degrees, and a tapered transition curved surface (28) is arranged above the inlet of the forward profiling channel (20) of the distribution main board (22).

2. The positive and negative state screening device for large and small parts according to claim 1, wherein the bottom of the distribution main plate (22) is provided with a first reverse distributor block (16) and a second reverse distributor block (18), and a reverse profiling channel (30) is formed between the first reverse distributor block (16) and the second reverse distributor block (18).

3. The apparatus for screening positive and negative conditions of large and small parts according to claim 2, wherein the angle formed by said parting surface (26) and the axis perpendicular to said conveyor belt (14) and the angle formed by said forward copying channel (20) and said reverse copying channel (30) and the axis of movement of said conveyor belt (14) are both 45 °.