Flexible detection and rejection equipment and detection and rejection method

Abstract

The invention discloses flexible detection and rejection equipment and a detection and rejection method, the equipment comprises a conveying unit, a detection unit, a material blocking unit, a telescopic unit and a control unit, the conveying unit comprises a main conveyor belt, a first conveyor belt and a second conveyor belt, the first conveyor belt and the second conveyor belt are arranged at the tail end of the main conveyor belt, and the second conveyor belt is arranged between the main conveyor belt and the first conveyor belt; the detection unit is arranged at one end of the main conveyor belt away from the first conveyor belt; the material blocking unit is arranged at the end, close to the first conveying belt, of the main conveying belt and used for blocking the defective products, and the defective products and the non-defective products are arranged in rows. The telescopic unit is arranged between the main conveying belt and the first conveying belt, is positioned at the top between the second conveying belts and is used for shunting good products and defective products; and the control unit is electrically connected with the conveying unit, the detection unit, the material blocking unit and the telescopic unit correspondingly, the mode that sorting is conducted firstly and then removing is conducted is adopted, the removing efficiency is improved, and meanwhile the quality of good products cannot be damaged.

Description

Technical Field

[0001] The present application relates to biscuit processing equipment, and in particular to a flexible detection and rejection equipment and a detection and rejection method. Background Art

[0002] In the food industry, sandwich biscuits production line needs to be inspected online and unqualified biscuits need to be removed. However, the sandwich biscuits just out of the sandwich machine on the conveyor belt are still soft and the filling is creamy. During the removal process, the following phenomena may occur, such as only half of the sandwich biscuits are removed, the sandwich biscuits fall onto normal biscuits during the movement, or cause slippage and blockage. Therefore, the current method of removing sandwich biscuits cannot completely remove defective products, and also affects the quality of good products. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings, the purpose of the present application is to provide a flexible detection and rejection device, which detects and rejects sandwich biscuits by sorting them first and then rejecting them, thereby improving the rejection efficiency.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] A flexible detection and rejection device, comprising

[0006] A conveying unit, comprising a main conveyor belt for product feeding, a first conveyor belt and a second conveyor belt arranged at the end of the main conveyor belt, wherein the second conveyor belt is arranged between the main conveyor belt and the first conveyor belt;

[0007] A detection unit, arranged at an end of the main conveyor belt away from the first conveyor belt, for taking pictures of the product;

[0008] A material blocking unit is arranged at one end of the main conveyor belt close to the first conveyor belt, and is used to block defective products so that defective products and good products are arranged in separate rows;

[0009] a telescopic unit, arranged between the main conveyor belt and the first conveyor belt and located on top of the second conveyor belt, wherein when the telescopic unit is in an extended state, good products on the main conveyor belt are conveyed to the first conveyor belt, and when the telescopic unit is in a retracted state, bad products on the main conveyor belt are conveyed to the second conveyor belt;

[0010] The control unit is electrically connected to the conveying unit, the detecting unit, the material blocking unit and the telescopic unit respectively.

[0011] In one embodiment, the main conveyor belt and the first conveyor belt are arranged in a straight line, and the transmission direction of the second conveyor belt is perpendicular to the transmission direction of the main conveyor belt.

[0012] Furthermore, the height of the first conveyor belt is the same as that of the main conveyor belt, and the height of the second conveyor belt is lower than that of the main conveyor belt.

[0013] In one embodiment, the detection unit includes a detection camera and a detection light source located above the main conveyor belt.

[0014] In one embodiment, the material blocking unit includes a plurality of guide cylinders located above the main conveyor belt, and at least two blocking rods are disposed at the output end of each guide cylinder.

[0015] In one embodiment, the telescopic unit is a telescopic belt conveyor.

[0016] In one embodiment, the main conveyor belt is formed with a good product transport row and a bad product transport row, and the bad product transport row is located between the two good product transport rows.

[0017] Furthermore, the defective product transport row is arranged in the middle of two rows of good product transport rows.

[0018] The embodiment of the present application also provides a detection and rejection method of the flexible detection and rejection device as described above, comprising the following steps:

[0019] The main conveyor automatically transports the sandwich biscuits to the detection unit.

[0020] The detection unit takes a picture of the appearance of the sandwich biscuit and feeds the picture information back to the control unit.

[0021] The control unit performs analysis and comparison based on the received photos.

[0022] If it is judged as qualified, no adjustment will be made.

[0023] If it is judged to be unqualified, an adjustment signal is output to the material blocking unit and the telescopic unit to transfer the defective products.

[0024] Further, if the judgment is unqualified, outputting an adjustment signal to the blocking unit and the telescopic unit to transfer the defective products includes:

[0025] The blocking unit blocks defective products and stops the operation of the blocking unit after a certain period of time.

[0026] The telescopic unit is in a retracted state. After a certain period of time, the telescopic unit can be extended forward.

[0027] The present application sets a material blocking unit at one end of the main conveyor belt close to the first conveyor belt. Before the defective products are taken out, the defective products are first stopped, so that the defective products and good products are arranged in separate rows on the main conveyor belt, and then the good products and unqualified products are separated by cooperation with the telescopic unit. The present application adopts the method of sorting before rejection, which not only improves the rejection efficiency, but also does not damage the quality of good products. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide an understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation on the technical solution of the present disclosure. The shapes and sizes of the components in the accompanying drawings do not reflect the actual proportions and are only intended to illustrate the content of the present application.

[0029] Figure 1 A schematic diagram of a normal conveying state of a detection and rejection device provided in an embodiment of the present application;

[0030] Figure 2 A schematic diagram of the reject state of the detection and rejection device provided in an embodiment of the present application;

[0031] Figure 3 Schematic diagram of a material blocking unit in an embodiment of the present application;

[0032] Figure 4 for Figure 3 Enlarged schematic diagram of the circled part;

[0033] Figure 5 A top view of the main conveyor belt in an embodiment of the present application;

[0034] Figure 6 This is a schematic diagram of the normal conveying state of the material blocking unit in the embodiment of the present application;

[0035] Figure 7 This is a schematic diagram of the material blocking state of the material blocking unit in an embodiment of the present application. DETAILED DESCRIPTION

[0036] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the examples can be further adjusted as the conditions of the specific manufacturer, and the unspecified implementation conditions are usually the conditions in conventional experiments.

[0037] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should be understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connecting" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. In this article, "electrical connection" includes the situation where the constituent elements are connected together through an element with some electrical function. "Elements with some electrical function" are not particularly limited as long as they can transfer electrical signals between the connected constituent elements. "Elements with some electrical function" can be, for example, electrodes or wiring, or switching elements such as transistors, or other functional elements such as resistors, inductors or capacitors. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0038] In this application, the directions or positional relationships indicated by the terms "upper", "lower", "inner", "middle", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0039] The inventors of the present application have discovered in the course of long-term practical work that, during the rejection process of sandwich biscuits, not only can defective products not be completely rejected, but the quality of good products is also affected. The main reason for this is that the sandwich biscuits that have just come out of the sandwich machine on the conveyor belt are prone to failure during the rejection process because the cake base is still in a soft state and the sandwich is creamy, thus affecting production and product quality.

[0040] In the prior art, the following methods are used to remove sandwich biscuits, such as vacuum suction cup adsorption, slide flap removal and pneumatic blowing.

[0041] However, the inventors have found that after the above-mentioned processing is completed, not only can the defective products not be completely eliminated, but the quality of the good products will also be affected. For example, when a vacuum suction cup is used for elimination, the suction cup will only absorb half of the biscuit during the absorption process. At the same time, since the sandwich is in a creamy state and the cake embryo is still in a soft state, there is a risk of the sandwich biscuit falling during the movement, thereby affecting the quality of the good sandwich biscuits; if a slide flap method is used for elimination, since the cake embryo is still in a soft state and the sandwich is in a creamy state, the sandwich of the sandwich biscuit is easy to stick to the slide, causing blockage; if a pneumatic blowing method is used for elimination, this method requires a faster transmission speed, but the faster speed will cause the sandwich biscuit to deform and the upper and lower covers to misalign, affecting production and product quality.

[0042] In view of this, the present application discloses a flexible detection and rejection device, including a conveying unit, a detection unit, a material blocking unit, a telescopic unit and a control unit, including a main conveyor belt for product feeding, a first conveyor belt and a second conveyor belt arranged at the end of the main conveyor belt, and the second conveyor belt is arranged between the main conveyor belt and the first conveyor belt; the detection unit is arranged at an end of the main conveyor belt away from the first conveyor belt, and is used to take pictures of sandwich biscuits; the material blocking unit is arranged at an end of the main conveyor belt close to the first conveyor belt, and is used to stop defective products and arrange the defective products and good products in separate rows; the telescopic unit is arranged between the main conveyor belt and the first conveyor belt and at the top between the second conveyor belt When the telescopic unit is in an extended state, the defective products on the main conveyor belt are conveyed to the first conveyor belt, and when it is in a retracted state, the defective products on the main conveyor belt are conveyed to the second conveyor belt; the control unit is electrically connected to the conveying unit, the detection unit, the blocking unit and the telescopic unit respectively. The present application sets a blocking unit at one end of the main conveyor belt close to the first conveyor belt. Before the defective products are taken out, the defective products are first stopped, so that the defective products and the good products are arranged in separate rows on the main conveyor belt, and then the good products and the unqualified products are separated by cooperation with the telescopic unit. The present application adopts the method of sorting first and then rejecting, which not only improves the rejection efficiency, but also does not damage the quality of the good products.

[0043] Next join Figure 1-Figure 7 To describe the flexible detection and rejection device of the present application, the flexible detection device is mainly used for detecting and rejecting sandwich biscuits.

[0044] A flexible detection and rejection device, comprising

[0045] The conveying unit 10 comprises a main conveyor belt 11 for feeding sandwich biscuits, a first conveyor belt 12 and a second conveyor belt 13 arranged at the end of the main conveyor belt 11, and the second conveyor belt 13 is arranged between the main conveyor belt 11 and the first conveyor belt 12;

[0046] The detection unit 20 is arranged at an end of the main conveyor 11 away from the first conveyor 12 and is used to take pictures of the products;

[0047] The material blocking unit 30 is arranged at one end of the main conveyor belt 11 close to the first conveyor belt 12, and is used to block defective products so that defective products and good products are arranged in separate rows;

[0048] The telescopic unit 40 is arranged between the main conveyor belt 11 and the first conveyor belt 12 and is located on the top of the second conveyor belt 13. When the telescopic unit 40 is in an extended state, the good products on the main conveyor belt 11 are conveyed to the first conveyor belt 12. When the telescopic unit 40 is in a retracted state, the bad products on the main conveyor belt 11 are conveyed to the second conveyor belt 13.

[0049] The control unit is electrically connected to the conveying unit 10, the detection unit 20, the material blocking unit 30 and the telescopic unit 40, respectively. The control unit controls the conveying unit 10 to transport the product; the detection unit 20 transmits the captured photo data to the control unit, and the control unit obtains the defective product data through calculation and analysis; the control unit transmits the defective product data signal to the material blocking unit 30, so that the material blocking unit 30 starts to stop the defective product; the control unit transmits the defective product data signal to the telescopic unit 40, so that the telescopic unit 40 retracts backwards, thereby removing the defective product.

[0050] refer to Figure 1 In this embodiment, the main conveyor belt 11 and the first conveyor belt 12 are arranged in a straight line, and the transmission direction of the second conveyor belt 13 is perpendicular to the transmission direction of the main conveyor belt 11. Preferably, the height of the first conveyor belt 12 is the same as that of the main conveyor belt 11, and the height of the second conveyor belt 13 is lower than that of the main conveyor belt 11. This design is conducive to the diversion of sandwich biscuits between the first conveyor belt 12 and the second conveyor belt 13 through the telescopic unit.

[0051] In this embodiment, the detection unit 20 includes a detection camera (not shown in the drawings) and a detection light source (not shown in the drawings) located above the main conveyor belt. The control unit 20 already has good product data of sandwich biscuits. The detection camera takes pictures of the sandwich biscuits in transportation and feeds them back to the control unit. The control unit compares the pictures with the good product data, identifies defective products, and transmits the data signals of the defective products to the material blocking unit. In this application, the main defects detected in the sandwich biscuits are missing pieces, fewer cakes, and misalignment of upper and lower cakes.

[0052] refer to Figure 3-4In this embodiment, the blocking unit 30 includes several guide cylinders 31 located above the main conveyor belt 11. At least two blocking rods 32 are provided at the output end of each guide cylinder 31. The production line of sandwich biscuits in this application is 36 lanes, and 36 guide cylinders need to be provided accordingly, so that the guide cylinders 31 correspond to the number of sandwich biscuits one by one. The guide cylinders 31 receive the unqualified signal from the control unit, and the guide cylinders 31 above the corresponding defective products are started, driving the blocking rods 32 to descend, and blocking the defective products, so that the defective products and good products are arranged in separate rows (such as Figure 5 As shown), after the guide cylinder 31 stops the defective product for a certain period of time, when the defective product is between two rows of good products, the guide cylinder 31 retracts, which is conducive to the removal of defective products in the later stage. In this application, the normal state of the guide cylinder 31 is the retracted state. Figure 6 This is a schematic diagram of the normal conveying state of the blocking unit (the blocking rod 32 does not descend); Figure 7 Schematic diagram of the blocking state of the blocking unit (the blocking rod 32 is lowered, and then the blocking is performed. Figure 7 (indicated by the arrow in the middle).

[0053] refer to Figure 1-2 In this embodiment, the telescopic unit 40 is a telescopic belt conveyor, which receives a defective product data signal from the control unit. When the defective product reaches the telescopic belt conveyor, the conveying end of the telescopic belt conveyor begins to retract backward (such as Figure 2 As shown), a gap is created between the main conveyor belt 11 and the first conveyor belt 12. At this time, defective products can fall off the retractable belt conveyor to the second conveyor belt 13. After completion, the conveying end of the retractable belt conveyor extends forward to connect the main conveyor belt 11 with the first conveyor belt 12. Qualified sandwich biscuits move to the first conveyor belt 11 (as shown). Figure 1 In the present application, the normal state of the retractable belt conveyor is the extended state.

[0054] refer to Figure 5 In this embodiment, since the blocking unit blocks the defective products from moving forward, the main conveyor belt is formed with a good product transport row 111 and a defective product transport row 112. The defective product transport row 112 is located between the two good product transport rows 111. Preferably, the defective product transport row 112 is located in the middle of the two good product transport rows 111. This design allows the entire row of defective biscuits to be removed. Compared with the method of removing defective products one by one, this method improves production efficiency and does not damage the quality of good products.

[0055] The present application also provides a detection and rejection method for the above-mentioned flexible detection and rejection device, the method comprising the following steps:

[0056] The main conveyor belt 11 automatically transports the sandwich biscuits to the detection unit; the detection unit 20 takes photos of the appearance of the sandwich biscuits and feeds back the photographic information to the control unit; the control unit analyzes and compares based on the received photos, and if it is judged to be qualified, no adjustment is made; if it is judged to be unqualified, an adjustment signal is output to the material blocking unit and the telescopic unit to transfer the defective products.

[0057] If it is judged to be unqualified, an adjustment signal is output to the material blocking unit 30 and the telescopic unit 40 to transfer the defective products, including: the material blocking unit blocks the defective products, and the material blocking unit 30 stops running after a certain period of time; the telescopic unit is in a retracted state, and after a period of retraction, the telescopic unit 40 retracts forward.

[0058] Specifically, the stopping time of the stopping unit is set according to the distance between two adjacent product transport rows on the transport line. Preferably, when the stopping unit stops the defective product to the middle position between the two adjacent product transport rows, the stopping unit stops stopping the defective product. The time when the telescopic unit is in the retracted state is also set according to the distance between the good product transport row and the defective product transport row on the transport line. Preferably, the time required for half of the distance between the adjacent good product transport row and the defective product transport row on the transport line is the optimal time for the telescopic unit to be in the retracted state.

[0059] The above embodiments are only for illustrating the technical concept and features of the present application, and their purpose is to enable people familiar with the technology to understand the content of the present application and implement it accordingly, and they cannot be used to limit the protection scope of the present application. Any equivalent transformation or modification made according to the spirit of the present application shall be included in the protection scope of the present application.

Claims

1. A flexible detection and rejection device, characterized in that: include: A conveying unit, comprising a main conveyor belt for product feeding, a first conveyor belt and a second conveyor belt arranged at the end of the main conveyor belt, wherein the second conveyor belt is arranged between the main conveyor belt and the first conveyor belt; A detection unit, which is arranged on a side of the main conveyor belt away from the first conveyor belt and is used to take pictures of the product; A material blocking unit is arranged at one end of the main conveyor belt close to the first conveyor belt, and is used to block defective products so that defective products and good products are arranged in separate rows; a telescopic unit, which is arranged between the main conveyor belt and the first conveyor belt and is located on the top of the second conveyor belt, wherein when the telescopic unit is in an extended state, good products on the main conveyor belt are conveyed to the first conveyor belt, and when the telescopic unit is in a retracted state, bad products on the main conveyor belt are conveyed to the second conveyor belt; A control unit is electrically connected to the conveying unit, the detecting unit, the material blocking unit and the telescopic unit respectively.

2. The flexible detection and rejection device according to claim 1, characterized in that: The main conveyor belt and the first conveyor belt are arranged in a straight line, and the transmission direction of the second conveyor belt is perpendicular to the transmission direction of the main conveyor belt.

3. The flexible detection and rejection device according to claim 2, characterized in that: The height of the first conveyor belt is the same as that of the main conveyor belt, and the height of the second conveyor belt is lower than that of the main conveyor belt.

4. The flexible detection and rejection device according to claim 1, characterized in that: The detection unit includes a detection camera and a detection light source located above the main conveyor belt.

5. The flexible detection and rejection device according to claim 1, characterized in that: The material blocking unit comprises a plurality of guide cylinders located above the main conveyor belt, and at least two blocking rods are arranged at the output end of each guide cylinder.

6. The flexible detection and rejection device according to claim 1, characterized in that: The telescopic unit is a telescopic belt conveyor.

7. The flexible detection and rejection device according to claim 1, characterized in that: The main conveyor belt is formed with a good product transport row and a bad product transport row, and the bad product transport row is located between two rows of good product transport rows.

8. The flexible detection and rejection device according to claim 7, characterized in that: The defective product transport row is arranged in the middle of the two rows of good product transport rows.

9. A detection and rejection method using the flexible detection and rejection device according to any one of claims 1 to 7, characterized in that: The steps include: The main conveyor automatically transports the sandwich biscuits to the detection unit. The detection unit takes a picture of the appearance of the sandwich biscuit and feeds the picture information back to the control unit. The control unit performs analysis and comparison based on the received photos. If it is judged as qualified, no adjustment will be made. If it is judged to be unqualified, an adjustment signal is output to the material blocking unit and the telescopic unit to transfer the defective products.

10. The removal method according to claim 9, characterized in that: If it is judged as unqualified, the adjustment signal is output to the material blocking unit and the telescopic unit to transfer the defective products including: The blocking unit blocks defective products and stops the operation of the blocking unit after a certain period of time. The telescopic unit is in a retracted state, and after being retracted for a period of time, the telescopic unit is retracted forward.

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