Automatic broken biscuit picking device

Abstract

The utility model belongs to biscuit production technical field, concretely relates to a kind of automatic picking device of broken biscuit, including conveying frame, the port of air inlet pipe is successively equipped with baffle ring and wind speed detector, the bottom of the blocking plate is equipped with multiple automatic baffle, the conveying frame is symmetrically equipped with two the material guide plate and two conveyer belts, the symmetry axis of the material guide plate and the conveyer belt is perpendicular, the material guide plate covers the top of one the conveyer belt and then tilts to another the conveyer belt;By setting suction plate, baffle ring, wind speed detector and negative pressure device, biscuit will cause hindrance to the airflow entering air inlet pipe, the ability of airflow hindering of complete biscuit and broken biscuit is different, whether biscuit is broken can be determined by comparing wind speed, biscuit is lifted by airflow during detection, after detection, biscuit falls down, secondary detection is carried out at this time, avoid the accuracy of device detection to reduce due to crack in biscuit.

Description

Technical Field

[0001] This utility model belongs to the field of biscuit production technology, specifically relating to an automatic biscuit sorting device. Background Technology

[0002] Cookies are fragile items, and it is inevitable that some cookies will break or be damaged during the production process. Therefore, it is necessary to sort out the cookies that are broken or damaged before packaging. In order to reduce the labor intensity of the staff, some cookie sorting devices are equipped with vision sensors to sort the cookies.

[0003] Patent application number "CN202421833649.7" discloses an automatic biscuit sorting device for biscuit production. In use, biscuits are placed in a feeding hopper. A baffle moves within a channel as the conveyor belt rotates. When the baffle passes the discharge port below the feeding hopper, it pushes the lowest biscuit towards the vision sensor. When a biscuit passes below the vision sensor, if it is undamaged, the vision sensor sends a signal to a cylinder, causing it to push upwards. A positioning plate tilts with the cylinder's push, causing undamaged biscuits to fall away from the cylinder for discharge. When a damaged biscuit passes the vision sensor, the cylinder retracts, tilting the positioning plate towards the cylinder, thus moving the biscuit towards the cylinder. This method achieves automatic sorting of damaged biscuits while reducing the problem of omissions caused by manual sorting.

[0004] The aforementioned patent uses visual sensors to sort cookies. However, this sorting method only detects cookies by their outer contours. Some cookies have internal cracks, making them prone to breakage during transportation, which reduces the accuracy of the sorting process. Utility Model Content

[0005] This invention provides an automatic biscuit sorting device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic biscuit sorting device, comprising a conveyor frame, a synchronous belt mounted on the conveyor frame with multiple material placement plates, multiple material placement frames mounted on the material placement plates, and further comprising a suction plate, a baffle plate, and a guide plate. The suction plate is located at the top of the conveyor frame, and the suction plate is provided with an air inlet pipe and a negative pressure device corresponding to the material placement frames. A baffle ring and a wind speed detector are sequentially installed at the port of the air inlet pipe. The baffle plate is located at the end of the downward section of the synchronous belt, and multiple automatic baffles are installed at the bottom of the baffle plate. The length of the automatic baffle is half of the groove in which it is installed. The automatic baffles correspond one-to-one with the material placement frames. The conveyor frame is symmetrically provided with two guide plates and two conveyor belts below the automatic baffles. The axes of symmetry of the two guide plates and the two conveyor belts are perpendicular to each other. The guide plates cover the top of one conveyor belt and then tilt towards the other conveyor belt.

[0007] Preferably, the side wall of the guide plate is provided with a partition that contacts the bottom surface of the barrier plate.

[0008] Preferably, the top of the inclined surface of the guide plate does not contact the bottom surface of the barrier plate.

[0009] Preferably, the retaining ring has a mesh structure, and the bottom surface of the retaining ring is flush with the bottom surface of the suction plate.

[0010] Preferably, the material placement frame is mounted on the material placement plate by screws, and the top of the material placement frame is provided with a removable sealing plate.

[0011] Preferably, adjacent material trays are connected by an elastic band, and the adjacent material trays do not contact each other.

[0012] Preferably, the top surface of the conveyor frame is provided with a feeding plate, which is located near the end of the synchronous belt that is rising.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention incorporates a suction plate, a baffle ring, a wind speed detector, and a negative pressure device. During operation, the negative pressure device draws in outside air. The biscuit obstructs the airflow entering the intake pipe. The different shapes of intact and broken biscuits result in varying degrees of airflow obstruction, leading to different wind speeds entering the intake pipe. The wind speed detector within the intake pipe monitors the airflow velocity. By comparing these speeds, it can be determined whether the biscuit is broken. During the detection process, the biscuit is lifted by the airflow. After detection, the biscuit falls. If the biscuit has internal cracks, it breaks upon falling. A secondary detection is then performed to prevent internal cracks from reducing the accuracy of the device's detection. By setting up automatic baffles, guide plates, and conveyor belts, when the biscuits are moved to the slot where the automatic baffles are installed, the biscuits fall onto the guide plates and conveyor belts. By adjusting the position of the automatic baffles, whole biscuits and broken biscuits fall onto different guide plates and conveyor belts, thus achieving classified conveying of biscuits. By setting up multiple material boxes and air inlets and automatic baffles that correspond to each material box, the synchronous detection of multiple biscuits is achieved, improving the working efficiency of the device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the automatic biscuit sorting device of this utility model; Figure 2 This is a schematic diagram of the barrier plate in this utility model; Figure 3 This is a structural schematic diagram of the conveyor belt installation position in this utility model; Figure 4 This is a schematic diagram of the suction plate in this utility model; Figure 5 This is a flowchart illustrating the process of the device in this invention inspecting intact biscuits; Figure 6 This is a flowchart illustrating the process of the device in this invention detecting broken biscuits. Figure 7 This is a schematic diagram showing the fit between the central material frame and the slot for installing the automatic baffle in this utility model. Figure 8 This is a schematic diagram of the location where the barrier plate is set in this utility model.

[0015] In the diagram: 1. Conveyor frame; 11. Feeding plate; 2. Placing plate; 21. Elastic belt; 3. Placing frame; 4. Suction plate; 41. Baffle ring; 42. Wind speed detector; 43. Negative pressure device; 5. Conveyor belt; 6. Barrier plate; 61. Automatic baffle; 7. Guide plate. Detailed Implementation

[0016] Please see Figure 1-8This utility model provides the following technical solution: an automatic biscuit sorting device, including a conveyor frame 1, a synchronous belt on the conveyor frame 1 with multiple material placement plates 2, multiple material placement frames 3 on the material placement plates 2, and a suction plate 4, a baffle plate 6 and a guide plate 7. The top of the conveyor frame 1 is provided with a suction plate 4, and the suction plate 4 is provided with an air inlet pipe and a negative pressure device 43 corresponding to the material placement frame 3. A baffle ring 41 and a wind speed detector 42 are installed in sequence at the port of the air inlet pipe. The end of the downward section of the synchronous belt is provided with a baffle plate 6, and multiple automatic baffles 61 are installed at the bottom of the baffle plate 6. The length of the automatic baffle 61 is half of the groove where the automatic baffle 61 is installed. The automatic baffles 61 correspond one-to-one with the material placement frames 3. Two guide plates 7 and two conveyor belts 5 are symmetrically arranged below the automatic baffles 61 on the conveyor frame 1. The axes of symmetry of the two guide plates 7 and the two conveyor belts 5 are perpendicular to each other. The guide plate 7 covers the top of one conveyor belt 5 and then tilts towards the other conveyor belt 5.

[0017] A controller is installed on the conveyor frame 1, which is connected to each of the electrically powered components of the device. The controller controls the operation of these components. The controller, conveyor frame 1, and conveyor belt 5 are common, mature components available on the market, and their operation is common knowledge in this field, so they will not be described in detail in this manual. The material placement plate 2 is used to place the biscuits to be tested. Each material placement frame 3 contains one biscuit to be tested. The material placement plate 2 is mounted on a synchronous belt. When the synchronous belt on the conveyor frame 1 starts, the material placement plate 2 and the material placement frames 3 begin to move under the action of the synchronous belt, thus conveying the biscuits. When the material placement plate 2, carrying the biscuits, moves to a position that aligns with the air inlet pipe of the negative pressure device 43, the synchronous belt stops. The negative pressure device 43 is then activated, and external airflow passes through the material placement frames 3 and enters the air inlet pipe. The wind speed detector 42 detects the airflow velocity entering the air inlet pipe. During airflow, the biscuits placed in the feeding frame 3 partially cover the bottom of the frame 3. When a biscuit is damaged, its area changes, altering the opening area of ​​the airflow into the inlet pipe and changing the airflow velocity. The shape of the biscuit remains the same, matching the data obtained by the wind speed detector 42 in the inlet pipe corresponding to the feeding frame 3 with intact biscuits. By comparing the data obtained by the wind speed detector 42 with the data obtained when the biscuit is intact, it can be determined whether the biscuit is intact. The airflow carries the biscuit as it enters the inlet pipe, and the baffle ring 41 acts as a limit, preventing the biscuit from being carried into the inlet pipe by the airflow. During use, the biscuit is tested twice. After the first test, the biscuit impacts the feeding frame 3 upon falling. If the biscuit has a crack, it will break upon falling. This process is repeated for a second test, which improves the accuracy of the device's detection. As the feeding plate 2 moves with the biscuits, the baffle plate 6 serves to block and divert the biscuits. When the feeding plate 2 moves with the feeding frame 3 to a downward-facing position, the baffle plate 6 prevents the biscuits from detaching from the feeding frame 3. When the feeding frame 3 moves to a position that mates with the slot of the automatic baffle 61, the biscuits fall from the slot. The guide plate 7 and the conveyor belt 5 are symmetrically positioned below the automatic baffle 61. The position of the guide plate 7 ensures that the biscuits falling from both ends of the slot of the automatic baffle 61 land on the two guide plates 7 respectively. The shape of the slot of the automatic baffle 61 matches the length of the automatic baffle 61. When the automatic baffle 61 moves to both ends of the slot, the unsealed portion of the slot corresponds to the two guide plates 7 respectively.The falling position of the biscuits can be adjusted by changing the position of the automatic baffle 61. The wind speed detector 42, the automatic baffle 61, and the controller are connected. The data obtained by the wind speed detector 42 is transmitted to the controller, which controls the movement of the wind speed detector 42. The automatic baffles 61, corresponding to the boxes 3 containing complete biscuits and the boxes 3 containing broken biscuits, are located at opposite ends of the slot where the automatic baffles 61 are installed, respectively, realizing the separate conveying of complete biscuits and broken biscuits. The shape and position of the guide plate 7 ensure the effective sorting and conveying of biscuits. When complete biscuits fall from the automatic baffle 61, the biscuits above the conveyor belt 5 that conveys complete biscuits fall onto the conveyor belt 5. The remaining biscuits fall onto the guide plate 7, and the complete biscuits slide from the guide plate 7 onto the conveyor belt 5 that conveys complete biscuits. The guide plate 7 can prevent biscuits from falling onto the wrong conveyor belt 5.

[0018] Specifically, the side wall of the guide plate 7 is provided with a partition that contacts the bottom surface of the barrier plate 6.

[0019] The partitions on the guide plate 7 separate the top surface of the guide plate 7 from the external environment, preventing the biscuits from falling onto the wrong conveyor belt 5 during the movement of the biscuits on the guide plate 7, thus ensuring the device's ability to sort biscuits.

[0020] Specifically, the top of the inclined surface of the guide plate 7 does not contact the bottom surface of the barrier plate 6.

[0021] The position of the top of the inclined surface of the guide plate 7 ensures that each cookie has enough space to fall, preventing the cookie from getting stuck during the fall.

[0022] Specifically, the retaining ring 41 has a mesh structure, and the bottom surface of the retaining ring 41 is flush with the bottom surface of the suction plate 4.

[0023] The shape of the baffle ring 41 ensures that the baffle ring 41 will not obstruct the airflow into the air intake pipe. The position of the bottom surface of the baffle ring 41 ensures that when the baffle ring 41 blocks the biscuit, the top surface of the biscuit is flush with the top surface of the feeding plate 2. When the moving feeding plate 2 carries the biscuit, the position of the biscuit pushed by the airflow ensures that the pushed biscuit will not obstruct the movement of the feeding plate 2.

[0024] Specifically, the material placement frame 3 is mounted on the material placement plate 2 by screws, and the top of the material placement frame 3 is provided with a removable sealing plate.

[0025] The installation method of the feeding frame 3 makes it easy for users to replace the feeding frame 3. It is convenient for users to select the appropriate feeding frame 3 to install on the feeding plate 2 according to the shape of the biscuit. When the user sets the feeding frame 3, the feeding plate 2 with the feeding frame 3 with the sealing plate and the feeding plate 2 with the feeding frame 3 without the sealing plate are alternately set on the conveyor frame 1. During the movement of the feeding plate 2, the setting method of the feeding plate 2 ensures that the slot of the automatic baffle 61 will only cooperate with one feeding frame 3 without the sealing plate.

[0026] Specifically, adjacent material trays 2 are connected by elastic bands 21, and adjacent material trays 2 do not contact each other.

[0027] The non-contacting material trays 2 provide space for movement. The position of the material trays 2 can avoid mutual interference between adjacent material trays 2 during movement. The elastic band 21 acts to seal the gap between the material trays 2, preventing the biscuits from falling out of the gap between the material trays 2 when the biscuits are placed by the user. When the material trays 2 move to the bend of the synchronous belt, the distance between the material trays 2 changes, and the elastic band 21 is elastically deformed by the material trays 2, ensuring that the elastic band 21 does not hinder the movement of the material trays 2.

[0028] Specifically, a feeding plate 11 is provided on the top surface of the conveyor frame 1, and the feeding plate 11 is close to the end of the synchronous belt that is rising.

[0029] The feeding plate 11 is provided with multiple feeding ports corresponding to the feeding frame 3. When the device is in use, the biscuits are placed into the feeding ports and fall onto the feeding frame 3 through the feeding ports, thus realizing the feeding of biscuits. The side wall of the feeding port of the feeding plate 11 is provided with a groove with the side wall inclined outward. The groove on the side wall of the feeding port plays a guiding role, making it easy for the user to put the biscuits into the feeding port. The position of the feeding plate 11 ensures that the suction plate 4 and the feeding plate 11 cooperate with the feeding frame 3 without the sealing plate, realizing the simultaneous feeding and detection.

[0030] The working principle and usage process of this utility model are as follows: A biscuit is placed into the feeding port of the feeding plate 11, and the biscuit falls into the feeding frame 3. The synchronous belt is started, and the synchronous belt moves the feeding plate 2. When the feeding plate 2 moves the feeding frame 3 to a position that matches the air inlet pipe of the negative pressure device 43, the synchronous belt is turned off, and the negative pressure device 43 is started. The airflow enters the air inlet pipe of the negative pressure device 43 under the action of the negative pressure device 43. During the airflow process, the biscuit will obstruct the airflow. The wind speed detector 42 detects the airflow. The shapes of complete biscuits and broken biscuits are different, and the data obtained by the wind speed detector 42 are different. The data obtained by the wind speed detector 42 is transmitted to the controller. The controller controls the movement of the automatic baffle 61 corresponding to the broken material box 3. The automatic baffle 61 corresponding to the broken material box 3 and the automatic baffle 61 corresponding to the intact material box 3 are located at both ends of the slot where the automatic baffle 61 is installed. The controller controls the material plate 2 to move. The material plate 2 moves the material box 3 to the position that matches the slot where the automatic baffle 61 is installed. The biscuit falls onto the guide plate 7 through the slot where the automatic baffle 61 is installed. The intact biscuit and the broken biscuit fall onto different conveyor belts 5 and guide plates 7 respectively. The biscuit that falls onto the guide plate 7 falls onto the corresponding conveyor belt 5. The conveyor belt 5 transports the biscuit.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic sorting device for damaged biscuits, comprising a conveyor frame (1), wherein a plurality of material placement plates (2) are mounted on a synchronous belt disposed on the conveyor frame (1), and a plurality of material placement frames (3) are mounted on the material placement plates (2), characterized in that: It also includes a suction plate (4), a baffle plate (6), and a guide plate (7). The top of the conveyor frame (1) is provided with the suction plate (4). The suction plate (4) is provided with an air inlet pipe and a negative pressure device (43) corresponding to the material placement frame (3). A retaining ring (41) and a wind speed detector (42) are installed in sequence at the port of the air inlet pipe. The baffle plate (6) is provided at the end of the downward section of the synchronous belt. Multiple automatic baffles (61) are installed at the bottom of the baffle plate (6). 1) The length is half of the groove where the automatic baffle (61) is installed. The automatic baffle (61) corresponds one-to-one with the material placement frame (3). The conveyor frame (1) is symmetrically provided with two guide plates (7) and two conveyor belts (5) below the automatic baffle (61). The axes of symmetry of the two guide plates (7) and the two conveyor belts (5) are perpendicular to each other. The guide plate (7) covers the top of one conveyor belt (5) and then tilts towards the other conveyor belt (5).

2. The apparatus according to claim 1, wherein: The guide plate (7) has a partition on its side wall that contacts the bottom surface of the barrier plate (6).

3. The apparatus according to claim 1, wherein: The top of the inclined surface of the guide plate (7) does not contact the bottom surface of the barrier plate (6).

4. The apparatus according to claim 1, wherein: The retaining ring (41) has a mesh structure, and the bottom surface of the retaining ring (41) is flush with the bottom surface of the suction plate (4).

5. The automatic biscuit sorting device according to claim 1, characterized in that: The material placement frame (3) is mounted on the material placement plate (2) by screws, and the top of the material placement frame (3) is provided with a removable sealing plate.

6. The automatic biscuit sorting device according to claim 1, characterized in that: The adjacent material plates (2) are connected by an elastic band (21) and the adjacent material plates (2) do not contact each other.

7. The automatic biscuit sorting device according to claim 1, characterized in that: The top surface of the conveyor frame (1) is provided with a feeding plate (11), which is close to the end of the synchronous belt that is rising.

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