A safety cutting device for vegetables with stepless adjustment of cutting length

Abstract

The utility model belongs to food processing machinery technical field, concretely relates to a synchronous control stepless regulation safety cutting device of cutting length, including frame, there is non -contact switch on the frame, there is inductive component above non -contact switch, inductive component is connected with cutter assembly through support, cutter assembly includes cutter body and tool rest, the linear motion assembly of linear motor drive is installed above tool rest, and the mechanical linkage is linked with cutter assembly through pull rod structure, drive conveying assembly includes clutch motor and transmission structure, and the safety protection mechanism is equipped with on the transmission belt of transmission structure, safety protection mechanism includes the protective cover of being located cutter assembly one side, and the power-off switch is above protective cover, the microprocessor in control cabinet has control module and response module. The utility model can greatly broaden the cutting length range, can fundamentally guarantee food safety, and the device's structure is simple, high reliability, easy to maintain, and still has very high security.

Description

Technical Field

[0001] This utility model belongs to the field of food processing machinery technology, specifically relating to a safe vegetable cutting device with synchronous control and stepless adjustment of cutting length. Background Technology

[0002] Most vegetable cutters on the market use ratchet, cam, and crank-connecting rod mechanisms to achieve the intermittent motion of the conveyor belt and the synchronous motion of the cutter.

[0003] Currently, this type of mechanical linkage structure is limited by the stroke and speed ratio of the mechanical structure, resulting in a cutting length adjustment range that is typically 5–50 mm. This narrow adjustment range is insufficient to meet the diverse needs of food processing. Furthermore, mechanical components such as ratchet and cams can experience wear or corrosion after prolonged use or exposure to moisture. These issues can lead to inaccurate coordination between the conveyor belt and the cutter. Additionally, at the moment the cutter contacts the conveyor belt, the belt may not have completely stopped, resulting in slight movement and scraping between the cutter and the conveyor belt surface, producing plastic or rubber particles that can contaminate the food, causing serious food safety problems. Moreover, the complex mechanical transmission structure contains numerous easily worn parts, most of which are located at the bottom of the equipment. These parts are highly susceptible to corrosion from water and debris during cutting and washing, requiring extensive maintenance and resulting in a short service life. Furthermore, if the protective cover is accidentally opened, it is impossible to immediately cut off all power sources, posing a safety hazard. Therefore, there is an urgent need for a vegetable cutting device with a wide cutting range, no pollution, a simple and reliable structure, and higher safety. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a safe vegetable cutting device with synchronous control and stepless adjustment of cutting length, so as to solve the problems of limited cutting length range, food safety hazards, complex structure, high failure rate and inadequate safety protection of traditional vegetable cutting machines in the prior art.

[0005] To achieve the above objectives, a safe vegetable cutting device with synchronously controlled stepless adjustment of cutting length includes: A frame, on which a non-contact switch is provided, and a sensing component is located above the non-contact switch. The sensing component is connected to the cutter assembly via a bracket. A cutting assembly includes a cutting body and a cutting holder, with a linear motion component mounted above the cutting holder; A linear motion assembly includes a linear motor and a tie rod structure. The tie rod structure includes two optical axes passing through a linear bearing. The two optical axes are fixed by a connecting rod. A first joint bearing is provided in the middle of the connecting rod. The first joint bearing is connected to a first tie rod. The first tie rod is connected to a second tie rod via a second joint bearing. The end of the second tie rod is fixedly connected to the output shaft of the linear motor. A drive conveyor assembly includes a clutch motor and its transmission structure. The transmission structure includes a drive gear driven by the clutch motor. The drive gear is fitted with a drive chain, which meshes with a conveyor belt gear. The conveyor belt gear is located on one side of a drive roller, which is located on one side of the frame. A driven roller is located on the other side of the frame. A conveyor belt is mounted on the drive roller and the driven roller. The drive roller and the driven roller support the conveyor belt while rotating. A cutting area is located above the conveyor belt. The safety protection mechanism includes a protective cover located in the cutting area, and the protective cover is equipped with a power-off switch; The control cabinet has a built-in microprocessor, which contains a control module and a sensing module. The sensing module receives signals from the non-contact switch indicating that the cutter is in place or has disappeared, as well as signals from the power-off switch indicating that the cover is open, and transmits these signals to the control module. The control module controls the start and stop of the clutch motor and the movement of the linear motor based on the sensing signals, and sends a power-off signal to the main circuit.

[0006] Preferably, the non-contact switch is a proximity switch, and the sensing element is a metal sensing sheet.

[0007] Preferably, the linear motion component is disposed inside the crankshaft cover of the linear motor; the linear motor is disposed inside the linear motor cover.

[0008] Preferably, the linear motor drives the second pull rod to rotate. Based on the rotation of the second pull rod, the first pull rod drives the connecting rod to move up and down, thereby driving the optical axis to move up and down linearly within the linear bearing, and thus realizing the reciprocating cutting motion of the cutter body.

[0009] Preferably, the control cabinet includes speed control interfaces connected to the linear motor and the clutch motor respectively, and the speed control interfaces are equipped with independent control buttons for individually adjusting the running speed of the cutter body and the conveyor belt.

[0010] Preferably, the clutch motor and the linear motor are adjustable speed motors, and the running speed is synchronously adjusted by the control button to achieve stepless adjustment of the cutting length within the range of 5 to 400 mm.

[0011] The beneficial effects of this utility model are: 1. This utility model achieves stepless adjustment of the cutting length by independently and precisely adjusting the up-and-down movement frequency of the linear motion component and the conveying speed of the drive conveying component through the control cabinet. The adjustable cutting length range is 5-400mm. The cutting length adjustment range of this utility model is 7-10 times that of traditional vegetable cutters, and its application scenarios are extremely wide.

[0012] 2. This utility model utilizes the non-contact sensing of a proximity switch and the rapid response of a clutch brake motor to achieve millisecond-level precise coordination between the cutter and the conveyor belt. This ensures that the conveyor belt remains precisely stationary throughout the entire cutting process within a 5mm distance between the cutter and the conveyor belt, completely avoiding the problem of particulate contaminants generated by friction between the conveyor belt and the cutter due to minute movements, thus significantly improving food safety.

[0013] 3. This utility model eliminates the complex intermittent mechanical mechanisms such as ratchet, cam, crank connecting rod, etc. The main power and execution components are two motors. In particular, the linear motion component that drives the cutter assembly effectively avoids water flow and debris during cleaning, reducing the risk of corrosion and failure. The overall structure is simple, highly modular, has a low failure rate, and is easy to maintain.

[0014] 4. This utility model is equipped with a protective cover, which not only physically isolates the operator's hands from contact with the cutter, but also has a linkage power-off function. Once the protective cover is opened, it will trigger the safety switch and immediately cut off the power supply to the equipment, realizing active safety protection and greatly improving operational safety. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is a schematic diagram of the cutting blade assembly of this utility model; Figure 3 This is a schematic diagram of the linear motion component of this utility model; Figure 4 This is a schematic diagram of the drive and conveying assembly of this utility model; Figure 5 This is a schematic diagram of the safety protection mechanism of this utility model; Figure 6 This is a schematic diagram of the control logic of this utility model.

[0017] In the diagram: Frame 1, Non-contact switch 11, Sensing component 12, Support 13; Cutter assembly 2, Cutter body 201, Cutter holder 202; Control cabinet 3, Speed ​​control interface 31, Control button 32, Microprocessor 300, Control module 301, Sensing module 302; Linear motion assembly 4, Linear motor crankshaft cover 401, Linear motor cover 402, Linear motor 403, Optical shaft 404, Linear bearing 405, Connecting rod 406, First joint bearing 407, First pull rod 408, Second joint bearing 409, Second pull rod 410, Output shaft 411; Drive conveyor assembly 5, Clutch motor 501, Clutch motor drive gear 502, Drive chain 503, Conveyor belt gear 504, Conveyor belt 505; Safety protection mechanism 6, Protective cover 61, Power off switch 62. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0020] Currently, the mechanical linkage structure of this ratchet, cam, and crank-connecting rod mechanism is limited by the stroke and speed ratio of the mechanical structure, resulting in a narrow adjustment range for the cutting length. After long-term use or exposure to moisture, mechanical components such as the ratchet and cam will experience wear or corrosion. These phenomena cause the cutter to scrape against the conveyor belt surface, producing plastic or rubber particles, posing a serious food safety problem. The complex mechanical transmission structure contains many easily worn parts, most of which are located at the bottom of the equipment, requiring extensive maintenance and resulting in a short service life. Furthermore, if the protective cover is accidentally opened, it is impossible to immediately cut off all power sources, posing a safety hazard. Therefore, there is an urgent need for a vegetable cutting device with a wide cutting range, no pollution, simple and reliable structure, and higher safety.

[0021] The solution provided by this utility model will now be described in detail with reference to the accompanying drawings.

[0022] Reference Figure 1-6 A safe vegetable cutting device with synchronous control and stepless adjustment of cutting length includes a frame 1, a cutting blade assembly 2, a control cabinet 3, a linear motion assembly 4, a drive and conveying assembly 5, and a safety protection mechanism 6.

[0023] like Figure 1 and Figure 2 As shown, a non-contact switch 11 is provided on the frame 1. The non-contact switch 11 is a proximity switch with a certain sensing range. Above the non-contact switch 11 is a sensing element 12, which is a metal sensing sheet. The sensing element 12 is connected to the cutter assembly 2 through the bracket 13. The cutter assembly 2 includes a cutter body 201, which is mounted on the cutter holder 202.

[0024] The non-contact switch 11 is connected to the control cabinet 3. The control cabinet 3 is equipped with a speed adjustment interface 31 and a control button 32. The control cabinet 3 is equipped with a microprocessor 300, which contains a control module 301 and a sensing module 302.

[0025] Reference Figure 1 and Figure 3A linear motion assembly 4 is connected above the cutter assembly 2. A linear motor crankshaft cover 401 is fitted over the linear motion assembly 4. The linear motion assembly 4 is driven by a linear motor 403 housed within the linear motor cover 402. The linear motor 403 is an adjustable speed motor and is connected to the control cabinet 3 via a speed adjustment interface 31. The linear motor 403 is mechanically linked to the cutter assembly 2 via a pull rod structure. The pull rod structure includes two optical shafts 404, which pass through a linear bearing 405 and are connected by a connecting rod 406. A first joint bearing is located in the middle of the connecting rod 406. 407, the first joint bearing 407 is connected to the first pull rod 408, the first pull rod 408 is connected to the second pull rod 410 through the second joint bearing 409, the end of the second pull rod 410 is fixedly connected to the output shaft 411 of the linear motor 403, the linear motor 403 drives the second pull rod 410 to rotate, based on the rotation of the second pull rod 410, the first pull rod 408 drives the connecting rod 406 to move up and down, thereby driving the optical axis 404 to move up and down linearly within the linear bearing 405, thereby realizing the reciprocating cutting motion of the cutter body 201.

[0026] Reference Figure 1 and Figure 4 The drive conveying assembly 5 includes a clutch motor 501 and its transmission structure. The clutch motor 501 is an adjustable speed motor. The clutch motor 501 is connected to the control cabinet 3 through the speed adjustment interface 31. The transmission structure includes a clutch motor drive gear 502. A drive chain 503 is sleeved on the clutch motor drive gear 502. The drive chain 503 is connected to the conveyor belt gear 504. The conveyor belt gear 504 is located on one side of the drive roller. The drive roller is located on one side of the frame 1. A driven roller is located on the other side of the frame 1. A conveyor belt 505 is provided on the drive roller and the driven roller. The drive roller and the driven roller support the conveyor belt 505 on the basis of rotation. A cutting area is provided above the conveyor belt 505.

[0027] Reference Figure 5 The safety protection mechanism 6 includes a protective cover 61 located above the cutting area, and the protective cover 61 is located on one side of the cutter assembly 2. The protective cover 61 is equipped with a power-off switch 62, which is connected to the control cabinet 3.

[0028] Based on the above embodiments, such as Figure 6As shown, after adjusting control button 32, control button 32 sends a signal to control module 301. After receiving the signal, control module 301 simultaneously sends a linear motion signal to linear motor 403 and clutch motor 501 to control the downward movement of the pull rod mechanism and a start transport signal to control the linear movement of the transmission structure towards the cutting area. After receiving the signals, linear motor 403 and clutch motor 501 start moving simultaneously. Under the drive of the pull rod mechanism, the cutter assembly 2 begins to move downward linearly. When the sensing component 12 reaches the sensing range of non-contact switch 11, non-contact switch 11 sends a cutter arrival signal to sensing module 302. After receiving the cutter arrival signal, sensing module 302 transmits the cutter arrival signal to control module 301. After receiving the cutter arrival signal, 301 instantly sends a stop signal to the clutch motor 501. Upon receiving the stop signal, the clutch motor 501 immediately applies an emergency brake, thereby stopping the conveyor belt 505. At the same time, the cutter body 201 begins to cut the product segment stationary in the cutting area. After completing the cutting action, the cutter assembly 2 moves upward in a straight line. When the cutter assembly 2 moves away from the sensing range of the non-contact switch 11, the non-contact switch 11 sends a cutter disappearance signal to the sensing module 302. Upon receiving the cutter disappearance signal, the sensing module 302 transmits the cutter disappearance signal to the control module 301. Upon receiving the cutter disappearance signal, the control module 301 sends an start signal to the clutch motor 501, thereby resuming the movement of the conveyor belt 505.

[0029] Based on the above cutting process, with the speed coordination of the clutch motor 501 and the linear motor 403, the cutting length can be infinitely adjusted, allowing the cutting length to continuously vary within the range of 5 to 400 mm.

[0030] Furthermore, such as Figure 6 As shown, when the protective cover 61 is opened, the power-off switch 62 on the protective cover 61 will be triggered. The power-off switch 62 sends a protective cover opening signal to the sensing module 302. The sensing module 302 transmits the received protective cover opening signal to the control module 301. After receiving the protective cover opening signal, the control module 301 immediately sends a power-off signal to the main circuit power supply. The entire vegetable cutting device immediately stops all operations to ensure the safety of the operator.

[0031] Specifically, when using the safe vegetable cutting device with synchronous control and stepless adjustment of cutting length provided by this utility model for vegetable cutting operations, the operator needs to first place the product segment on the conveyor belt 505 on the side away from the cutting area, and connect it to the linear motor 403 and the clutch motor 501 respectively through the speed adjustment interface 31 on the control cabinet 3. Adjust the speed of the linear motor 403 and the clutch motor 501 respectively through the control button 32. At the adjusted speed, the linear motor 403 and the clutch motor 501 start to move downward in a straight line and transport the product segment to the cutting area simultaneously to perform the cutting motion, while sending away the already cut product segment. This cycle repeats to achieve automatic, continuous and precise cutting.

[0032] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A safe vegetable cutting device with synchronously controlled stepless adjustment of cutting length, characterized in that, include: A frame, on which a non-contact switch is provided, and a sensing component is located above the non-contact switch. The sensing component is connected to the cutter assembly via a bracket. A cutting assembly includes a cutting body and a cutting holder, with a linear motion component mounted above the cutting holder; A linear motion assembly includes a linear motor and a tie rod structure. The tie rod structure includes two optical axes passing through a linear bearing. The two optical axes are fixed by a connecting rod. A first joint bearing is provided in the middle of the connecting rod. The first joint bearing is connected to a first tie rod. The first tie rod is connected to a second tie rod via a second joint bearing. The end of the second tie rod is fixedly connected to the output shaft of the linear motor. A drive conveyor assembly includes a clutch motor and its transmission structure. The transmission structure includes a drive gear driven by the clutch motor. The drive gear is fitted with a drive chain, which meshes with a conveyor belt gear. The conveyor belt gear is located on one side of a drive roller, which is located on one side of the frame. A driven roller is located on the other side of the frame. A conveyor belt is mounted on the drive roller and the driven roller. The drive roller and the driven roller support the conveyor belt while rotating. A cutting area is located above the conveyor belt. The safety protection mechanism includes a protective cover located in the cutting area, and the protective cover is equipped with a power-off switch; The control cabinet has a built-in microprocessor, which contains a control module and a sensing module. The sensing module receives signals from the non-contact switch indicating that the cutter is in place or has disappeared, as well as signals from the power-off switch indicating that the cover is open, and transmits these signals to the control module. The control module controls the start and stop of the clutch motor and the movement of the linear motor based on the sensing signals, and sends a power-off signal to the main circuit.

2. The safe vegetable cutting device with synchronous control and stepless adjustment of cutting length according to claim 1, characterized in that, The non-contact switch is a proximity switch, and the sensing component is a metal sensing sheet.

3. The safe vegetable cutting device with synchronous control and stepless adjustment of cutting length according to claim 1, characterized in that, The linear motion component is housed inside the crankshaft cover of the linear motor; the linear motor is housed inside the linear motor cover.

4. The safe vegetable cutting device with synchronous control and stepless adjustment of cutting length according to claim 1, characterized in that, The linear motor drives the second pull rod to rotate. Based on the rotation of the second pull rod, the first pull rod drives the connecting rod to move up and down, thereby driving the optical axis to move up and down linearly within the linear bearing, thus realizing the reciprocating cutting motion of the cutter body.

5. A safe vegetable cutting device with synchronous control and stepless adjustment of cutting length according to claim 1, characterized in that, The control cabinet includes speed control interfaces connected to the linear motor and the clutch motor respectively. The speed control interfaces are equipped with independent control buttons for individually adjusting the running speed of the cutter body and the conveyor belt.

6. A safe vegetable cutting device with synchronous control and stepless adjustment of cutting length according to claim 1, characterized in that, The clutch motor and linear motor are adjustable speed motors, and their operating speed is synchronously adjusted by the control button to achieve stepless adjustment of the cutting length within the range of 5 to 400 mm.

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