A tray feeding and discharging device

Abstract

The utility model discloses a material tray feeding and discharging device, including installation bottom plate, jacking mechanism and conveying frame, the conveying frame contains conveying assembly, clamping assembly and guide component, wherein guide component is formed by the surrounding of front guide rod and rear guide rod and forms the lift channel, is used for the attitude correction of material tray, clamping assembly realizes the clamping and release of material tray through front, rear air cylinder and horizontal supporting plate, jacking mechanism is used for vertical lift material tray. Be equipped with conveying positioning sensor, lower limit early warning positioning sensor and upper limit early warning positioning sensor on rear guide rod, respectively for detecting material tray to the state of in position, insufficient quantity and stacking too high. The utility model discloses through the collaborative design of automation conveying and accurate orientation, has realized the efficient separation, stable stacking and real -time monitoring of material tray, effectively solved the problem of traditional manual feeding and discharging low efficiency, uneven interval and stacking misplacement, is applicable to electronic manufacturing, food packaging and other automated production line, has the characteristics such as simple structure, strong universality.

Description

Technical Field

[0001] This utility model relates to the field of automated loading and unloading technology, and in particular to a material tray loading and unloading device. Background Technology

[0002] In automated production lines, trays serve as crucial carriers of materials or workpieces, and their loading and unloading efficiency and stability directly impact production cycle time and product quality. Traditional tray management typically involves manual operation, where workers manually separate stacked trays one by one and place them onto the conveyor line for loading, or manually collect and stack trays at the unloading end. This method has the following problems:

[0003] Low material feeding efficiency: The speed of manual separation and placement of material trays is limited, making it difficult to match the needs of high-speed automated production lines and easily becoming a production bottleneck.

[0004] Unstable tray spacing: When trays are placed manually, it is difficult to accurately control the spacing between trays on the conveyor line, which makes it difficult for subsequent automated equipment (such as robotic arms and vision positioning systems) to accurately grasp or detect, affecting production stability.

[0005] High risk of stacking misalignment: At the unloading end, manual stacking of trays is prone to tilting, misalignment, or even collapse due to operational errors, affecting storage and transportation safety.

[0006] High labor intensity: Repetitive manual loading and unloading operations can easily lead to worker fatigue and increase the rate of operational errors, which is not in line with the development trend of intelligent manufacturing in the long run.

[0007] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a material tray loading and unloading device to solve the above problems.

[0008] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solution of this utility model and facilitating the understanding of those skilled in the art. It should not be assumed that the above content is known to those skilled in the art simply because it has been described in the background section of this utility model. Utility Model Content

[0009] To overcome the shortcomings of the prior art, the present invention discloses a material tray loading and unloading device, which achieves accurate positioning, stable stacking and real-time status feedback of the material tray through the coordinated operation of the lifting mechanism and the guide channel, combined with multi-level sensor monitoring.

[0010] This utility model discloses a material tray loading and unloading device, comprising:

[0011] Install the base plate, which serves as the supporting base for the overall structure;

[0012] The lifting mechanism is fixed to the upper end of the mounting base plate, and its output end is equipped with a horizontal support plate for vertically lifting the material tray;

[0013] The conveyor frame includes a conveying assembly, a clamping assembly, and a guiding assembly. The conveying assembly is used for horizontally conveying a material tray and includes conveying lines symmetrically arranged on the front and rear sides of a lifting mechanism. The clamping assembly is used for clamping or releasing the material tray and includes a front cylinder and a rear cylinder respectively arranged on the front and rear sides of the lifting mechanism. The output ends of the front cylinder and the rear cylinder are arranged opposite each other and each is connected to at least one horizontal support plate. The guiding assembly is used for position correction of the material tray and includes front guide rods arranged vertically on both sides of the front cylinder along the conveying direction of the conveying line and rear guide rods arranged vertically on both sides of the rear cylinder along the conveying direction of the conveying line. The two sets of front guide rods and rear guide rods together form a lifting channel for the material tray to pass through in an oriented manner, and the height of the front guide rods is less than that of the rear guide rods.

[0014] The rear guide rod is equipped with a conveying positioning sensor to detect whether the material trays on the conveying line are in place, a lower limit warning positioning sensor to detect whether the number of material trays in the lifting channel is lower than a preset value, and an upper limit warning positioning sensor to detect whether the number of material trays in the lifting channel exceeds a preset value.

[0015] Preferred technical solution: Both the front guide rod and the rear guide rod are equipped with guide baffles to limit the side of the material tray, which facilitates the material tray's entry and exit from the lifting channel and improves the positioning accuracy of the material tray.

[0016] Preferred technical solution: The surface of the guide baffle is provided with a wear-resistant layer to reduce frictional wear of the material tray.

[0017] Preferred technical solution: Photoelectric switches are installed on both sides of the lifting mechanism along the conveying direction of the conveyor line on the mounting base plate to detect the position of the material tray and trigger the lifting action.

[0018] Preferred technical solution: The horizontal support plates of the front cylinder and the rear cylinder are coplanar in the extended state to form a material tray support plane.

[0019] Preferred technical solution: The lifting mechanism is any one of electric push rod, hydraulic cylinder, pneumatic-hydraulic booster cylinder and lead screw motor.

[0020] Preferred technical solution: The conveyor line is a belt conveyor line, and a belt tensioning device is installed below the belt conveyor line to adjust the tension of the conveyor line and ensure smooth operation.

[0021] Preferred technical solution: The delivery positioning sensor, the lower limit warning positioning sensor, and the upper limit warning positioning sensor are all any one of photoelectric sensors and proximity switches.

[0022] Preferred technical solution: Both the upper limit warning positioning sensor and the lower limit warning positioning sensor can be height-adjusted along the rear guide rod to adapt to different stacking requirements.

[0023] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:

[0024] 1) The collaborative design of conveyor line + lifting mechanism + clamping components realizes automatic separation, conveying, positioning and stacking of material trays, completely replacing manual operation and improving production efficiency. The clamping design of front / rear cylinders + horizontal support plate ensures stable alignment of material trays during conveying and lifting, avoiding uneven spacing caused by manual placement.

[0025] 2) The guide assembly (front / rear guide rods + guide baffles) forms a closed lifting channel to ensure that the material trays remain vertically aligned during stacking, preventing tilting or collapse; the front guide rod is lower than the rear guide rod, which facilitates the smooth loading and unloading of material trays from the front and reduces the risk of jamming.

[0026] 3) A conveyor positioning sensor is used to detect whether the material trays on the conveyor line are in place, ensuring that the lifting mechanism accurately receives the materials; a lower limit warning sensor is used to monitor whether the number of material trays is lower than the safe value, preventing production interruptions caused by empty materials. An upper limit warning sensor is used to detect whether the stacking is too high, avoiding material tray overflow or equipment overload; and the sensor height is adjustable to adapt to the stacking requirements of different sized material trays, improving the equipment's versatility. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of a material tray loading and unloading device according to the present invention;

[0029] Figure 2 This is a top view of a material tray loading and unloading device according to the present invention.

[0030] In the attached diagrams above, 1 is the mounting base plate; 11 is the photoelectric switch; 2 is the lifting mechanism; 21 is the horizontal support plate; 3 is the conveyor frame; 31 is the conveyor assembly; 311 is the conveyor line; 312 is the belt tensioning device; 32 is the clamping assembly; 321 is the front cylinder; 322 is the rear cylinder; 323 is the horizontal support plate; 33 is the guide assembly; 331 is the front guide rod; 332 is the rear guide rod; 332a is the conveyor positioning sensor; 332b is the lower limit warning positioning sensor; 332c is the upper limit warning positioning sensor; and 333 is the guide baffle. Detailed Implementation

[0031] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0032] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and their synonyms, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0033] In this application, the terms "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this utility model and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0034] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0035] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," "fitting," and "fitting" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Similarly, "fitting" can mean completely or partially fitted. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] Example:

[0038] like Figure 1and Figure 2 As shown, this utility model discloses a material tray loading and unloading device, including a mounting base plate 1, a lifting mechanism 2, and a conveying frame 3. The main components of this utility model will be described in detail below:

[0039] Mounting base plate 1, made of high-strength aluminum alloy, is used to fix it to the production line frame.

[0040] The lifting mechanism 2 uses a lead screw motor. The output end of the lead screw motor is vertically positioned at the center of the upper end of the mounting base plate 1, with a stroke of 200mm and a maximum load of 50kg. The output end is connected to a horizontal support plate 21, which is made of 304 stainless steel and has a 2mm thick anti-slip silicone pad attached to its surface.

[0041] The conveyor frame 3 includes a conveying assembly 31, a clamping assembly 32, and a guiding assembly 33. The conveying assembly 31 includes two symmetrically arranged conveyor lines 311, which are belt conveyor lines located on the front and rear sides of the lifting mechanism 2. The belt width is 20mm and is driven by a servo motor. A belt tensioning device 312 is provided below the belt for adjusting the belt tension. The clamping assembly 32 includes a front cylinder 321 and a rear cylinder 322, which are fixed to the conveyor frame 3 by L-shaped brackets. The output ends of the front cylinder 321 and the rear cylinder 322 are connected to horizontal support plates 323. When the multiple horizontal support plates 323 are extended, they are coplanar to form a material tray support plane.

[0042] The guide assembly 33 includes a front guide rod 331 (100mm high) and a rear guide rod 332 (400mm high), both made of chrome-plated steel with a diameter of 20mm, and vertically installed via a flange seat. The front guide rod 331 and the rear guide rod 332 together form a rectangular lifting channel through which the feeding tray passes. The front guide rod 331 is lower than the rear guide rod 332 to facilitate tray loading and unloading. Along the height direction on the rear guide rod 332, the following are sequentially installed: a conveying positioning sensor 332a for detecting tray arrival signals; a lower limit warning positioning sensor 332b for monitoring insufficient tray quantity; and an upper limit warning positioning sensor 332c for detecting excessive tray stacking. Guide baffles 333, made of polyurethane-coated steel plate with a 0.2mm thick tungsten carbide wear-resistant layer, are provided on the inner sides of the front guide rod 331 and the rear guide rod 332.

[0043] Two photoelectric switches 11 are installed on the mounting base plate 1 along the conveying direction of the conveyor line 311, with the installation position ±200mm from the center line of the lifting mechanism 2.

[0044] Material tray feeding process: Step 1, Material tray conveying and detection:

[0045] The material tray is horizontally conveyed to the entrance of the lifting channel by the conveyor line 311 in conjunction with the photoelectric switch 11.

[0046] After the positioning sensor 332a detects that the material tray is in place, it sends a signal to the control system, triggering the lifting mechanism 2 to operate.

[0047] Step 2, Lifting and receiving materials:

[0048] The horizontal support plate 21 of the lifting mechanism 2 rises to be flush with the conveyor line 311, and after receiving the material tray, it continues to rise vertically to the preset height.

[0049] The horizontal support plates 323 of the front cylinder 321 and the rear cylinder 322 extend synchronously to form a coplanar support plane, which clamps the material tray and keeps it stably stationary.

[0050] Step 3, Stacking and Correction:

[0051] Subsequent trays are conveyed and stacked below the clamped trays. The front guide rod 331 and the rear guide rod 332 of the guide assembly 33 limit the sides of the trays through the guide baffle 333 to ensure that the posture is vertically aligned during the stacking process.

[0052] The 332c upper limit warning positioning sensor monitors the stacking height in real time and issues an alarm if the height exceeds the preset value to prevent excessive stacking.

[0053] Step 4, repeat the process:

[0054] Repeat the above steps until the preset number of trays are stacked.

[0055] Material tray unloading process: Step 1, release of stacked material trays:

[0056] The horizontal support plate 323 of the clamping component 32 retracts, releasing the stacked trays onto the horizontal support plate 21 of the lifting mechanism 2.

[0057] Step 2, Descending and Conveying:

[0058] The lifting mechanism 2 drives the material tray stack to descend vertically until the lowest material tray is level with the conveyor line 311.

[0059] When conveyor line 311 starts, it horizontally sends the material tray out of the lifting channel and into the next process or collection station.

[0060] Step 3, Empty Material Warning:

[0061] The lower limit warning positioning sensor 332b monitors the number of remaining material trays in the lifting channel. If the number is lower than the safety value, it will issue a warning signal to prompt the replenishment of material trays.

[0062] This invention solves the problems of low efficiency, poor stability, and reliance on manual labor in traditional material tray loading and unloading through an integrated design of automated conveying, precise guidance, and intelligent monitoring. It is particularly suitable for industries that require high-precision automated loading and unloading, such as electronics manufacturing, food packaging, and pharmaceutical production, and has broad market application prospects.

[0063] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A material tray loading and unloading device, characterized in that, include: Install base plate (1); The lifting mechanism (2) is fixed to the upper end of the mounting base plate (1), and its output end is provided with a horizontal support plate (21). The conveyor frame (3) includes a conveying assembly (31), a clamping assembly (32), and a guiding assembly (33). The conveying assembly (31) includes conveying lines (311) symmetrically arranged on the front and rear sides of the lifting mechanism (2). The clamping assembly (32) includes a front cylinder (321) and a rear cylinder (322) respectively arranged on the front and rear sides of the lifting mechanism (2). The output ends of the front cylinder (321) and the rear cylinder (322) are arranged opposite to each other and are each connected to at least one horizontal support plate. 323); The guiding assembly (33) includes a front guide rod (331) arranged vertically on both sides of the front cylinder (321) along the conveying direction of the conveying line (311), and a rear guide rod (332) arranged vertically on both sides of the rear cylinder (322) along the conveying direction of the conveying line (311); the two sets of the front guide rod (331) and the rear guide rod (332) together form a lifting channel for the feeding tray to pass through in an oriented manner, and the height of the front guide rod (331) is less than that of the rear guide rod (332). The rear guide rod (332) is provided with a conveying positioning sensor (332a), a lower limit warning positioning sensor (332b), and an upper limit warning positioning sensor (332c) sequentially from bottom to top.

2. The material tray loading and unloading device according to claim 1, characterized in that: Both the front guide rod (331) and the rear guide rod (332) are equipped with guide baffles (333) to limit the side of the material tray.

3. The material tray loading and unloading device according to claim 2, characterized in that: The surface of the guide baffle (333) is provided with a wear-resistant layer.

4. The material tray loading and unloading device according to claim 1, characterized in that: Photoelectric switches (11) are provided on both sides of the lifting mechanism (2) along the conveying direction of the conveying line (311) on the mounting base plate (1).

5. The material tray loading and unloading device according to claim 1, characterized in that: The horizontal support plates (323) of the front cylinder (321) and the rear cylinder (322) are coplanar in the extended state to form a material tray support plane.

6. The material tray loading and unloading device according to claim 1, characterized in that: The lifting mechanism (2) is any one of an electric push rod, a hydraulic cylinder, a pneumatic-hydraulic booster cylinder, and a lead screw motor.

7. The material tray loading and unloading device according to claim 1, characterized in that: The conveyor line (311) is a belt conveyor line, and a belt tensioning device (312) is provided below the belt conveyor line.

8. The material tray loading and unloading device according to claim 1, characterized in that: The conveying positioning sensor (332a), the lower limit warning positioning sensor (332b), and the upper limit warning positioning sensor (332c) are all either photoelectric sensors or proximity switches.

9. A material tray loading and unloading device according to claim 1, characterized in that: Both the upper limit warning positioning sensor (332c) and the lower limit warning positioning sensor (332b) can be height-adjusted along the rear guide rod (332).

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