CN210192011U

CN210192011U - CCD-based counting machine

Info

Publication number: CN210192011U
Application number: CN201920244654.7U
Authority: CN
Inventors: Xiaokui Jiang; 蒋晓魁; Zhenglong Jiang; 蒋正龙
Original assignee: Hefei Zhi Wan Electronic Technology Co Ltd
Current assignee: Hefei Zhi Wan Electronic Technology Co Ltd
Priority date: 2019-02-22
Filing date: 2019-02-22
Publication date: 2020-03-27
Anticipated expiration: 2029-02-22

Abstract

The utility model belongs to material count packing field, concretely relates to counting machine based on CCD, including pay-off unit, identification element, ejection of compact processing unit and data processing and the control unit, the pay-off unit includes into hopper, vibratory conveying device and baffle box, vibratory conveying device is located the hopper exit and is arranged in carrying the material that goes into the hopper to the baffle box, ejection of compact processing unit is located the baffle box below and is used for receiving the material that falls down from the baffle box. The utility model has the advantages that: the high-speed visual counting machine is based on the CCD imaging principle, and can realize quick and accurate counting of products which are large in size and weight difference and easy to damage (the speed of materials with the diameter of 6mm can reach 80000 grains per minute, and the error is less than three thousandths).

Description

CCD-based counting machine

Technical Field

The utility model belongs to material count packing field, concretely relates to counting machine based on CCD.

Background

With the development of science and technology in China, many industries in China begin to adopt refined counting packaging. The counting packaging equipment on the market at present mainly has a weighing type and a photoelectric type. Product weighing type packaging equipment with different weight of single materials and large quantity of single packages cannot accurately count and package the products; the photoelectric counting packaging equipment cannot accurately count the overlapped products, and has low production efficiency and high counting cost for the products packaged in large quantities.

Disclosure of Invention

In order to solve the problem, the utility model provides a counter based on CCD, this kind of counter can realize carrying out quick, accurate count to weight, overall dimension and the big product of volume difference.

The invention provides the following technical scheme:

a counter based on a CCD comprises a feeding unit, an identification unit, a discharge processing unit and a data processing and control unit, wherein the feeding unit comprises a feeding hopper, a vibration conveying device and a guide chute, the vibration conveying device is positioned at an outlet of the feeding hopper and used for conveying materials in the feeding hopper into the guide chute, the discharge processing unit is positioned below the guide chute and used for receiving the materials falling from the guide chute, the identification unit comprises a light source and a CCD image unit matched with the light source, the CCD image unit comprises 3 groups of CCD image sensors which are arranged side by side, the light source is positioned above the guide chute, the 3 groups of CCD image sensors are positioned below the guide chute, so that the materials fall into the discharge processing unit from the guide chute and can be identified by the CCD image sensors, the data processing and control unit is connected with the identification unit through a circuit and used for collecting and processing identification data of the identification unit, and completing counting of the materials.

Preferably, the vibration conveying device comprises 3 groups of vibration units arranged side by side, each vibration unit comprises a first vibrator, a second vibrator and a third vibrator, the first vibrator is arranged at the outlet of the feeding hopper, the second vibrator and the third vibrator are arranged side by side and attached together, and the second vibrator and the third vibrator are arranged below the first vibrator and above the guide chute.

Preferably, a material level switch for controlling the thickness of the material is arranged on the third vibrator.

Preferably, the discharge processing unit comprises 3 groups of material buffer areas matched with the 3 groups of vibration units, each material buffer area comprises a material buffer area A and a material buffer area B, an A area baffle is arranged at the bottom of the material buffer area A, the material buffer areas A and B are switched on and off through the opening and closing of the A area baffle, a B area baffle is arranged at the bottom of the material buffer area B, and an inlet of the material buffer area A is located below the guide chute.

Preferably, a silica gel curtain for preventing the material from being damaged is arranged in the material cache region A.

Preferably, a pressure reducing plate for preventing materials from being directly accumulated on the vibration conveying device is arranged in the feeding hopper.

Preferably, a hopper gate capable of adjusting the size of the hopper outlet according to the type of the material is arranged at the hopper outlet.

Preferably, the feeding hopper is provided with a photoelectric switch for monitoring the material level of the feeding hopper, and the photoelectric switch is electrically connected with the data processing and control unit.

Preferably, the counting machine further comprises a material returning unit, the material returning unit comprises a material returning door arranged below the baffle in the area B, and telescopic cylinders for realizing the opening and closing actions of the material returning door are arranged on two sides of the material returning door.

Preferably, the counting machine further comprises a display and setting unit, and the display and setting unit (60) is electrically connected with the data processing and control unit.

The invention has the beneficial effects that:

1. the high-speed visual counting machine is based on the CCD imaging principle, and can realize quick and accurate counting of products which are large in size and weight difference and easy to damage (the speed of materials with the diameter of 6mm can reach 80000 grains per minute, and the error is less than three thousandths).

2. The utility model discloses data processing and control unit possess product parameter automatic identification and memory function, through the analog count to the product in earlier stage, can realize the discernment and the storage to product form parameter automatically, be convenient for from now on directly use.

3. In the prior art, a camera is usually designed right above a conveying device, so that the camera cannot identify materials or cannot identify the materials accurately due to impurities, stains and the like on the conveying device; the utility model discloses with CCD image sensor's setting in the baffle box below, the light source is located the baffle box top, and the material falls into material buffer memory A or material buffer memory B from the baffle box, discerns the material of whereabouts aloft, the effectual this problem of having avoided.

4. Among the prior art, adopt the disc vibrator to carry out the feed supplement, feed supplement inefficiency and poor to the commonality of material, vibratory feed device includes the vibration unit that 3 groups set up side by side, the vibration unit includes first vibrator, second vibrator and third vibrator, first vibrator sets up in going into the hopper exit, second vibrator, third vibrator just paste side by side and lean on together, second vibrator, third vibrator set up in first vibrator below, baffle box top, can effectually carry out feed supplement and commonality to the material good.

5. The material level switch is arranged at the rear end of the third vibrator, so that the problem that materials are easy to stack due to unstable voltage is solved.

6. A pressure reducing plate is arranged in the feeding hopper, so that the influence on the material conveying performance of the conveying unit when the weight of the materials in the feeding hopper is changed greatly is solved.

7. Be equipped with the silica gel check curtain in material buffer A, solved the easy damaged problem of seed at whereabouts in-process.

8. The material return unit is arranged below the discharge hopper, so that materials with counts exceeding an error tolerance value can be conveyed to the feed hopper again for recounting, and the counting consistency of different bags of materials is effectively guaranteed.

Drawings

FIG. 1 is a perspective view of a counting machine;

FIG. 2 is a side view of the counting machine;

FIG. 3 is a schematic view of the structure of the input hopper;

fig. 4 is a schematic structural view of the vibration unit;

fig. 5 is a schematic view of the structure of the recognition unit.

The designations in the drawings have the following meanings:

10-feeding unit 11-feeding hopper 111-decompression plate 112-feeding hopper gate 113-photoelectric switch 12-vibrating conveying device 121-first vibrator 122-second vibrator 123-third vibrator 1231-material level switch 13-material guide chute

20-identification unit 21-light source 22-CCD image unit 30-discharge processing unit 31-material buffer area A311-A area baffle 32-material buffer area B321-B area baffle 40-data processing and control unit 50-material returning unit 51-material returning door 52-telescopic cylinder 60-display and setting unit

Detailed Description

The present invention will be described in detail with reference to the following examples.

Example 1

As shown in fig. 1, 2 and 5, a counter based on CCD comprises a feeding unit 10, an identifying unit 20, a discharging processing unit 30 and a data processing and controlling unit 40, wherein the feeding unit 10 comprises a feeding hopper 11, a vibration conveying device 12 and a material guiding chute 13, the vibration conveying device 12 is located at an outlet of the feeding hopper 11 for conveying a material in the feeding hopper 11 into the material guiding chute 13, the discharging processing unit 30 is located below the material guiding chute 13 for receiving the material falling from the material guiding chute 13, the identifying unit 20 comprises a light source 21 and a CCD image unit 22 matched with the light source 21, the CCD image unit 22 comprises 3 sets of CCD image sensors arranged side by side, the light source 21 is located above the material guiding chute 13, the 3 sets of CCD image sensors are located below the material guiding chute 13 so that the material falling from the material guiding chute 13 into the discharging processing unit 30 can be identified by the CCD image sensors, the data processing and control unit 40 is connected with the identification unit 20 through a circuit and collects and processes the identification data of the identification unit 20 to complete counting of the materials.

Example 2

On the basis of embodiment 1, as shown in fig. 1 and 4, the vibration conveying device 12 includes 3 sets of vibration units arranged side by side, each vibration unit includes a first vibrator 121, a second vibrator 122 and a third vibrator 123, the first vibrator 121 is arranged at the outlet of the feeding hopper 11, the second vibrator 122 and the third vibrator 123 are arranged side by side and abut against each other, and the second vibrator 122 and the third vibrator 123 are arranged below the first vibrator 121 and above the material guide chute 13;

and a material level switch 1231 for controlling the thickness of the material is arranged on the third vibrator 123.

Example 3

On the basis of embodiment 2, as shown in fig. 1 and 2, the discharge processing unit 30 includes 3 sets of material buffer areas matched with the 3 sets of vibration units, each material buffer area includes a material buffer area a31 and a material buffer area B32, an a-area baffle 311 is disposed at the bottom of the material buffer area a31, and the material buffer areas a31 and B32 are switched on and off by opening and closing the a-area baffle 311, a B-area baffle 321 is disposed at the bottom of the material buffer area B32, and an inlet of the material buffer area a31 is located below the material guide chute 13;

a silica gel curtain 312 for preventing the material from being damaged is arranged in the material buffer area A31.

Example 4

On the basis of the embodiment 1, as shown in fig. 1 and 2, a pressure reducing plate 111 for preventing materials from directly accumulating on the vibrating conveying device is arranged in the feeding hopper 11;

a hopper gate 112 capable of adjusting the size of the hopper outlet according to the type of the material is arranged at the hopper 11 outlet;

the feeding hopper 11 is provided with a photoelectric switch 113 for monitoring the material level of the feeding hopper, and the photoelectric switch 113 is electrically connected with the data processing and control unit 40.

Example 5

On the basis of embodiment 1, as shown in fig. 1, the counting machine further includes a material returning unit 50, the material returning unit 50 includes a material returning door 51 disposed below the B-zone baffle 321, and telescopic cylinders 52 for realizing opening and closing of the material returning door 51 are disposed on two sides of the material returning door 51.

Example 6

On the basis of embodiment 1, as shown in fig. 1, the counter further includes a display and setting unit 60, and the display and setting unit 60 is electrically connected to the data processing and control unit 50.

The working process of the utility model is as follows:

the utility model discloses the during operation, to the material of first count, need carry out material parameter automatic identification process earlier: after the materials are put into the material inlet hopper 11, the parameter identification button of the display and setting unit 60 is clicked, the system starts the analog counting function, the identification of the product form parameters is automatically realized, after a certain number (for example, not less than 5000) is reached, the end button is clicked, the system automatically stores the identified material parameter information, at the moment, the material name is input and then the identified material parameter information is stored, the material parameter automatic identification process is completed, and the material parameter automatic identification process can be directly called in the future.

When the materials are counted, the display and setting unit 60 only needs to select the types of the materials to be counted, the data processing and control unit 60 detects whether the correlation photoelectric switch 113 has a feeding signal after the counting is started, if so, the elevator is controlled to automatically feed materials, and if not, the elevator is in a leisure state; the materials are conveyed into the guide chute in a vibrating mode through the vibrating unit, after the materials falling from the guide chute 13 pass through the identification area (a connecting line between the centers of the CCD image sensor 22 and the light source 21), the characteristic parameters of the materials are captured by the CCD image sensor, the data processing and control unit 40 collects and processes the characteristic parameters of the materials captured by the CCD image sensor, the counting of the materials is completed and is uploaded to the display and setting unit 60, the materials fall into the material cache area A, when the counted materials in the cache area A reach the preset number of single packages, the corresponding vibrating unit stops working, the baffle of the material cache area A is opened, after the materials fall into the material cache area B, the baffle of the material cache area A is closed again, and at the moment, the corresponding vibrating unit also starts working. And the data processing and control unit 40 opens the baffles of the material cache regions B in sequence according to the storage time of the materials in the 3 groups of material cache regions B, so that the counted materials enter the next procedure.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The counting machine based on the CCD is characterized by comprising a feeding unit (10), an identification unit (20), a discharging processing unit (30) and a data processing and control unit (40), wherein the feeding unit (10) comprises a feeding hopper (11), a vibration conveying device (12) and a guide chute (13), the vibration conveying device (12) is positioned at the outlet of the feeding hopper (11) and used for conveying materials in the feeding hopper (11) into the guide chute (13), the discharging processing unit (30) is positioned below the guide chute (13) and used for receiving the materials falling from the guide chute (13), the identification unit (20) comprises a light source (21) and a CCD image unit (22) matched with the light source (21), the CCD image unit (22) comprises 3 groups of CCD image sensors which are arranged side by side, the light source (21) is positioned above the guide chute (13), the 3 groups of CCD image sensors are positioned below the material guide chute (13), so that materials fall into the discharging processing unit (30) from the material guide chute (13) and can be identified by the CCD image sensors, and the data processing and control unit (40) is connected with the identification unit (20) through a circuit and collects and processes identification data of the identification unit (20) to complete counting of the materials.

2. The CCD-based counting machine according to claim 1, wherein the vibrating conveyor (12) comprises 3 sets of vibrating units arranged side by side, each vibrating unit comprises a first vibrator (121), a second vibrator (122) and a third vibrator (123), the first vibrator (121) is arranged at an outlet of the feeding hopper (11), the second vibrator (122) and the third vibrator (123) are arranged side by side and are attached together, and the second vibrator (122) and the third vibrator (123) are arranged below the first vibrator (121) and above the material guide chute (13).

3. The CCD-based counting machine according to claim 2, characterized in that a level switch (1231) is provided on the third vibrator (123) to control the material thickness.

4. The CCD-based counting machine according to claim 1, wherein the discharging processing unit (30) comprises 3 groups of material buffer areas matched with 3 groups of vibration units, each material buffer area comprises a material buffer area A (31) and a material buffer area B (32), an A-area baffle (311) is arranged at the bottom of the material buffer area A (31), the opening and closing of the material buffer area A (31) and the material buffer area B (32) are realized through the opening and closing of the A-area baffle (311), a B-area baffle (321) is arranged at the bottom of the material buffer area B (32), and an inlet of the material buffer area A (31) is located below the material guide chute (13).

5. The CCD-based counting machine according to claim 4, wherein a silica gel curtain (312) for preventing material damage is arranged in the material buffer A (31).

6. The CCD-based counting machine according to claim 1, wherein a decompression plate (111) is provided in the hopper (11) to prevent the material from directly accumulating on the vibrating conveyor.

7. The CCD-based counting machine according to claim 1, wherein a hopper gate (112) capable of adjusting the size of the hopper outlet according to the type of the material is arranged at the hopper (11) outlet.

8. The CCD-based counting machine according to claim 1, wherein the hopper (11) is provided with a photoelectric switch (113) for monitoring the hopper level, and the photoelectric switch (113) is electrically connected with the data processing and control unit (40).

9. The CCD-based counting machine according to claim 1, further comprising a material returning unit (50), wherein the material returning unit (50) comprises a material returning door (51) arranged below the B-area baffle (321), and telescopic cylinders (52) for realizing opening and closing actions of the material returning door (51) are arranged on two sides of the material returning door (51).

10. The CCD-based counting machine according to claim 1, further comprising a display and setting unit (60), said display and setting unit (60) being electrically connected to said data processing and control unit (40).