A ribbon cartridge tray receiving and positioning device

Abstract

The utility model provides a kind of ribbon cartridge tray material receiving positioning device, it is related to ribbon cartridge injection molding technical field, the utility model includes locating block, locating block is installed in the top of conveyer belt, at least is provided with a pair, to form the positioning interval of tray, and relative to the diagonal position distribution of tray, the section of locating block is L-shaped, for the corner position of clamping tray, its inboard lower side is equipped with the first guide slope of guiding and positioning to tray;Bracket is set between conveyer belt, it is configured to be under the action of driving structure, when tray is conveyed to the top of bracket by conveyer belt, lift tray and move along vertical direction, to make tray separate from conveyer belt and enter the positioning interval;Support plate is installed in the top of conveyer belt, it is configured to move along horizontal direction under the action of driving structure, to hold the tray after separating from conveyer belt positioning.The utility model compared with prior art has the advantage of realizing the accurate positioning of tray material receiving.

Description

Technical Field

[0001] This utility model relates to the field of ribbon box injection molding technology, and in particular to a ribbon box tray receiving and positioning device. Background Technology

[0002] A ribbon cassette is a container used in printing equipment to hold and guide consumable ribbons. To meet the needs of mass production and automated assembly, existing production lines typically use automated equipment that integrates sorting, traying, and conveying to process ribbon cassettes. This allows the ribbon cassettes to be sequentially gripped, flipped, and placed on a pallet after forming, thereby improving production efficiency and reducing manual intervention.

[0003] In the aforementioned process, the ribbon cartridge is typically picked up by a robotic arm and placed into a tray on the conveyor belt. However, this type of tray is not fixed to the conveyor belt or platform, but rather is in a state where it can move with the conveyor belt to its designated placement position. Due to the unavoidable inertial effect of the conveyor belt during operation, as well as the disturbances generated during acceleration, deceleration, or reversal, coupled with the fact that there is usually a certain clearance between the tray and the conveyor belt, and factors such as the dimensional tolerances of the tray itself, differences in conveyor belt tension, and changes in friction conditions, the tray may experience slight displacement or angular deviation during transport or positioning.

[0004] In this situation, the robotic arm is highly prone to alignment errors when placing the ribbon cartridge into the tray. For example, the ribbon cartridge may be misplaced, interfere with the tray cavity, or fail to fall accurately into the designated position. These problems not only affect the accuracy and stability of tray placement but may also lead to damage, jamming, or poor assembly of the ribbon cartridge, thereby reducing overall production efficiency and product qualification rate. Utility Model Content

[0005] The purpose of this application is to provide a ribbon box tray receiving and positioning device to solve the above-mentioned technical problems existing in the prior art.

[0006] This application provides a ribbon box tray receiving and positioning device, which adopts the following technical solution: A ribbon box tray receiving and positioning device includes: Positioning blocks are installed above the conveyor belt, and at least one pair is provided to form a positioning area for the pallet. They are distributed diagonally relative to the pallet. The positioning blocks have an L-shaped cross-section to engage the corners of the pallet. A first guide slope is provided on the lower inner side of the positioning block to guide the pallet into the positioning area. A bracket, positioned between conveyor belts, is configured such that, under the action of a drive structure, when a pallet is conveyed by the conveyor belt to a position above the bracket, it lifts the pallet and moves it vertically upwards, so that the pallet leaves the conveyor belt and enters the positioning area. A support plate, mounted above the conveyor belt, is configured to move horizontally under the action of a drive structure to clamp and position the pallet after it has been disengaged from the conveyor belt.

[0007] This utility model has the following advantages and beneficial effects: (1) This device achieves high-precision positioning of the pallet during conveying and receiving through the coordinated operation of three types of structures: bracket, positioning block, and support plate. First, the bracket, under the action of the drive structure, vertically lifts the pallet on the conveyor belt, causing the pallet to detach from the conveyor belt's running state. The bracket provides an independent motion reference, thereby avoiding pallet displacement deviation caused by speed fluctuations, tension changes, or uneven friction during the operation of the conveyor belt. Second, the L-shaped positioning blocks located on both sides of the conveyor belt form a first guide slope on their inner lower side. When the pallet is lifted into the positioning zone, the pallet's corners first contact the guide slope, and under the action of contact force, it automatically slides into the L-shaped locking position along the slope. Even if there is a slight misalignment of the pallet during conveying, it can achieve self-correction through this passive guide structure. Third, under the action of the drive structure, the support plate enters the positioning zone laterally, clamping and positioning the lifted pallet from the side, and together with the positioning block, provides support and constraint for the bottom and side walls of the pallet, thereby effectively suppressing the pallet's shaking, flipping, and displacement, forming a stable receiving posture.

[0008] (2) Compared to the traditional method of relying on the direct support of the conveyor belt, this device fixes the pallet in a relatively static reference position after the bracket lifts it, eliminating the impact of conveyor belt disturbance on placement accuracy from the source. At the same time, the first guide ramp provides a passive self-correction function, enabling the pallet to achieve stable angular positioning even with slight deviations, reducing the dependence on conveyor belt tension balance, friction consistency, and pallet manufacturing tolerances. Furthermore, the supporting action of the support plate below and the lateral clamping and positioning action, together with the positioning block, form multi-directional constraints, significantly enhancing the stability and anti-interference ability of the pallet during the force process. As a result, not only is the alignment accuracy and assembly yield of the ribbon box receiving improved, and collisions and rework caused by pallet shaking or offset reduced, but a stable and reliable mechanical foundation is also provided for integration with automatic detection and closed-loop control systems, thereby improving the reliability and consistency of the overall production process while maintaining automated production capacity. Attached Figure Description

[0009] 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.

[0010] Figure 1This is a schematic diagram of the overall structure of the ribbon box swivel machine.

[0011] Figure 2 This is a top view of the ribbon box swivel machine.

[0012] Figure 3 yes Figure 1 Enlarged view of section A.

[0013] Figure 4 This is a schematic diagram designed to showcase the structure of the ribbon box tray receiving and positioning device on the conveyor belt.

[0014] Figure 5 yes Figure 4 Enlarged view of section B.

[0015] Figure 6 This is a schematic diagram intended to show the structure of the positioning block.

[0016] Figure 7 It is an exploded view designed to show the positioning block and damping plate.

[0017] Figure 8 This is a structural diagram intended to show the support plate.

[0018] Figure 9 This is a structural diagram intended to show the bracket.

[0019] Figure 10 This is a schematic diagram intended to show the structure of the tray.

[0020] The diagram is marked as follows: 100. Workbench; 110. Conveyor belt; 120. Robotic arm; 130. Tilting mechanism; 140. Loading mechanism; 150. Unloading mechanism; 200. Positioning block; 201. Plate; 210. Positioning interval; 220. First guide ramp; 230. First through slot; 240. Lower extension; 241. Activity space; 242. Second guide ramp; 243. First block; 2431. Damping plate; 2432. Mounting rod; 2 433, Mounting slot; 2434, Receiving slot; 244, Second block; 2441, Second through slot; 300, Bracket; 310, Center rod; 320, First rod; 330, Support block; 400, Support plate; 410, First limiting structure; 411, Limiting block; 4111, Waist-shaped hole; 500, First position sensor; 510, Second position sensor; 600, Tray; 610, Wide bottom edge; 700, Ribbon box. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] The following is combined with Figures 1 to 10 The present application provides a detailed description of a ribbon box tray receiving and positioning device through specific embodiments and application scenarios.

[0023] The ribbon cassette tray receiving and positioning device is mainly installed inside the worktable 100 of the ribbon cassette tray slab machine. The slab machine includes a robotic arm 120 and conveyor belts 110 located on both sides of the robotic arm 120. The tray receiving and positioning device is positioned in the middle of the two conveyor belts 110 and is within the operable working area of ​​the robotic arm 120. The output end of the robotic arm 120 is typically equipped with suction cups, which can move in multiple directions under the action of the robotic arm 120's drive structure to grab ribbon cassettes 700 from the feed inlet of the slab machine. In actual production, the ribbon cassettes 700 often have inconsistent orientations, requiring them to be flipped and aligned first by a flipping mechanism 130 located on the worktable 100.

[0024] The flipping mechanism 130 generally includes a flipping motor and a flipping plate installed at the output end of the flipping motor. The flipping plate is provided with a placement slot for placing the ribbon cassette 700. When the flipping motor drives the flipping plate to rotate, it can flip the ribbon cassette 700 so that the front or back of the ribbon cassette 700 is consistent with the subsequent feeding direction, thereby ensuring that the robotic arm 120 can achieve correct gripping and positioning during the picking and placing process. After the flipping and picking operation, the robotic arm 120 accurately places the ribbon cassette 700 into the tray 600 on the two side conveyor belts 110, where the position is defined by the positioning device.

[0025] In the ribbon box stacking machine, a loading mechanism 140 and a unloading mechanism 150 are respectively installed at both ends of each side of the conveyor belt 110. The loading mechanism 140 or unloading mechanism 150 consists of four positioning posts, which surround each other to form a stacking space for the trays 600. An appropriate gap is maintained between the lower end of the positioning posts and the surface of the conveyor belt 110 to ensure that the trays 600 can smoothly enter and exit without jamming. A switch assembly is also provided below the positioning posts to open or close according to the entry and exit status of the trays 600, thereby realizing the stacked storage and orderly handling of the trays 600. Through this arrangement, the loading and unloading processes can be coordinated with the positioning of the trays 600 and the operation of the robotic arm 120, ensuring the stability and accuracy of the trays 600 during conveying, gripping, and placement, effectively reducing the risk of collision or displacement of the trays 600, and providing a stable working environment for the efficient and automated assembly of the ribbon boxes 700.

[0026] The specific working process of the ribbon box tray stacking machine is as follows: First, a certain number of empty trays 600 are stacked in the feeding mechanism 140 on one side. Under the control of the switching component, the empty trays 600 enter the conveyor belt 110 in sequence and are transported to the tray receiving and positioning device for positioning as the conveyor belt 110 runs. Then, the robotic arm 120 accurately places the ribbon boxes 700, which have been adjusted to a correct position by the flipping mechanism 130, into the trays 600 on both conveyor belts 110, which are positioned by the positioning device, until the trays 600 are full. The full trays 600 are then transported by the conveyor belt 110 to the unloading mechanism 150 on the other side. Then, driven by the lifting cylinder, the full trays are pushed into the tray stacking space formed by the four positioning columns in the unloading mechanism 150, thus completing the tray loading operation. Subsequently, all the stacked trays 600 in the unloading mechanism 150 can be removed as a whole by the mechanical gripper or manually. The specific removal method is not limited here. It should be noted that the above-mentioned feeding, unloading, and positioning column structures are existing technologies and are not protected in this application. They are only used to illustrate the working environment and operation process of the pallet receiving and positioning device.

[0027] In this application, a ribbon box tray receiving and positioning device includes positioning blocks 200. The positioning blocks 200 are vertically mounted on the frames on both sides of a conveyor belt 110 via plates 201 and are located above the conveyor belt. At least one pair is provided to enclose a positioning area 210 forming a tray 600, and they are distributed diagonally relative to the tray 600. The positioning blocks 200 have an L-shaped cross-section for engaging the corners of the tray 600, and a first guide ramp 220 is provided on its inner lower side for guiding and positioning the tray 600 upon entry.

[0028] In this embodiment, the L-shaped cross-section of the positioning block 200 not only provides positive locking restriction for the corners of the pallet 600, but also provides guiding correction in conjunction with the first guide ramp 220 during the process of the pallet 600 entering the positioning interval 210. When the pallet 600 experiences a slight deviation due to belt vibration, uneven tension, or friction differences during the conveyor belt 110 transport process, its corners will first contact the first guide ramp 220, and gradually slide into the L-shaped locking position under the guiding action, thereby achieving self-correction and allowing the pallet 600 to smoothly enter the predetermined position. Through the diagonal distribution, multi-point limiting of the pallet 600 at the four corners can be achieved, ensuring that the pallet 600 is subjected to balanced force during lifting or handling, and significantly improving stability. The positioning block 200 is connected to the plate 201 on the conveyor belt 110 frame by bolts or other fasteners, ensuring connection strength and installation firmness, and can resist the impact force generated by the pallet 600 and ribbon box 700 during high-speed transport or frequent stacking, improving the structural stability and long-term durability of the entire positioning interval 210. In addition, the positioning block 200 can be made of high-polymer wear-resistant material or metal material with low-friction coating, which can not only extend its service life, but also effectively reduce friction resistance when the pallet 600 moves in and out, and improve the smoothness of the pallet 600 movement and positioning accuracy.

[0029] It should be noted that the conveyor belt 110 in this application is a split structure of the same conveyor belt 110, including two spaced belts. The spaced belts are fixedly installed by a frame, and the pallet 600 is simultaneously carried and transported by the two belts. The bracket 300 located at the gap between the two belts is used to lift the pallet 600 vertically when it is transported to directly above the bracket 300 under the action of the drive structure, so that it is separated from the conveyor belt 110 and enters the positioning area 210.

[0030] In this embodiment, the lifting action of the bracket 300 can be achieved through various driving methods such as cylinders, electric push rods, or lead screw modules to adapt to different requirements for action precision and cost. The structural design of the bracket 300 takes into account the relative relationship between the tray 600 and the conveyor belt 110, ensuring no interference with the belt during the lifting process and guaranteeing the smooth rise of the tray 600. In addition, the lifting height of the bracket 300 is detected and fed back in real time by a position sensor to ensure that the tray 600 accurately enters the positioning range 210 after reaching the predetermined height, achieving stable positioning.

[0031] It is worth noting that this solution uses a bracket 300 to lift the pallet 600, detaching it from the conveyor belt 110, and then uses the positioning block 200 and support plate 400 for constraint and positioning. This method differs fundamentally from simply setting a baffle at the front end of the conveyor belt 110. During operation, there is often slight relative slippage and gap between the pallet 600 and the conveyor belt 110. When the conveyor belt 110 accelerates or decelerates, the pallet 600 will experience slight relative displacement due to inertia. If only a baffle is used for limiting, the pallet 600 is prone to collision or rebound, making it difficult to guarantee stable and accurate positioning. However, by using the bracket 300 to lift the pallet 600, after it detaches from the conveyor belt 110, it is decoupled from the disturbance of the conveyor belt 110, and thus positioned within a relatively static reference frame, greatly improving the accuracy and stability of the pallet 600 entering the positioning zone 210.

[0032] Reference Figure 5 , Figure 8 As shown, the support plate 400 is installed above the conveyor belt 110 frame and can move horizontally under the action of the drive structure. It is used to clamp and position the pallet 600 after it is separated from the conveyor belt 110, so that the pallet 600 remains horizontal during lifting and handling, preventing the ribbon box 700 from tipping over or getting stuck due to offset. The movement between the support plate 400 and the bracket 300 is coordinated. When the bracket 300 lifts the pallet 600 and gradually enters the positioning zone 210, the support plate 400 can clamp the weight of the positioning pallet 600 at the appropriate time, realizing a smooth transition of the pallet 600 from the conveyor belt 110 to the support plate 400. This effectively avoids the pallet 600 from being suspended, falling, or vibrating, thereby significantly improving the stability and reliability of the entire receiving and positioning process.

[0033] In different embodiments, the positioning block 200 is positioned above the conveyor belt 110 frame, with its bottom height from the surface of the conveyor belt 110 equal to the thickness of the pallet 600. This ensures that the pallet 600 enters the positioning zone 210 of the positioning block 200 promptly during lifting, preventing the conveyor belt 110 from moving the pallet 600 too far. This structure, through highly precise positioning, achieves a tight fit between the pallet 600 and the positioning block 200 during the lifting and moving process of the bracket 300. This eliminates the need for additional adjustments when the pallet 600 enters the positioning zone 210, reducing intervention by the robotic arm 120 or operators, improving operational efficiency, and ensuring the stability of the pallet 600 during handling and placement.

[0034] As an optional embodiment, multiple sets of positioning blocks 200 are arranged along the conveying direction of the conveyor belt 110. In this embodiment, there are two sets distributed in the middle of the conveyor belt 110. After the ribbon box 700 is placed by the robotic arm 120, the placed tray 600 can be removed by an external robotic arm, a gripping component, or manually to continue the operation.

[0035] In this embodiment, each positioning interval 210 formed by the positioning blocks 200 includes two pairs of positioning blocks 200, that is, a total of four positioning blocks 200 are provided. The two pairs of positioning blocks 200 are located at opposite corners of the pallet 600, thereby limiting the four corners of the pallet 600 when it enters the positioning interval 210. This four-corner positioning method can constrain the position of the pallet 600 in both longitudinal and lateral directions simultaneously. Compared with limiting only on both sides, this significantly improves the stability and reliability of the pallet 600 during conveying, lifting, and clamping positioning. Especially when the pallet 600 carries multiple ribbon boxes 700, the four-corner positioning structure can prevent the pallet 600 from tilting or slipping due to uneven weight distribution.

[0036] As an optional embodiment, the support plates 400 are set corresponding to the positioning intervals 210, and each positioning interval 210 is equipped with a pair of support plates 400, which are symmetrically installed on both sides of the frame of the conveyor belt 110. The symmetrical support plates 400 can evenly bear the weight of the pallet 600, so that the pallet 600 remains stable during horizontal movement or lifting by the bracket 300, and avoids the pallet 600 from tilting or shifting due to unilateral support, thereby ensuring the safety and neatness of the ribbon box 700 in the pallet 600.

[0037] As an optional embodiment, each positioning block 200 has a first through groove 230 vertically formed at its inner corner. The cross-section of the first through groove 230 is arc-shaped, and the first through groove 230 extends through the height range of the positioning block 200. Its position corresponds to the contact points between the four corners of the tray 600 and the positioning block 200. The inner wall of the positioning block 200 protrudes outward relative to the inner wall of the first through groove 230, forming a local limiting surface. With this design, when the four corners of the tray 600 enter the positioning interval 210, they do not directly contact the sharp inner corners of the positioning block 200, but first contact the protruding limiting surface, thereby effectively avoiding the jamming or wear problems caused by hard friction between the corners of the tray 600 and the inner corners of the positioning block 200.

[0038] Furthermore, the width and depth of the first through groove 230 can be precisely designed according to the corner dimensions of the pallet 600, and the contact area is limited to the protruding flat part, which facilitates the upward and downward sliding of the pallet 600 and avoids the frictional resistance caused by excessive contact surface at the four corners. This design not only reduces the sliding friction generated by the pallet 600 during conveying and positioning, but also enables the pallet 600 to maintain a more stable and smooth movement trajectory when entering the positioning zone 210, improving the sensitivity of guidance and positioning accuracy.

[0039] Furthermore, since the contact area is concentrated on the flat part of the protruding limiting surface, local stress concentration is reduced, avoiding the risk of damage to the corners of the tray 600 due to long-term friction, and also reducing the wear rate of the positioning block 200. Combined with wear-resistant materials or surface coating treatment, the service life of the positioning block 200 can be significantly extended, reducing the frequency of maintenance and replacement.

[0040] As an optional embodiment, refer to Figure 9 As shown, the bracket 300 includes a central rod 310, on which multiple parallel first rods 320 are fixedly inserted. Each end of the first rod 320 is bolted with a support block 330. The top walls of all support blocks 330 are on the same horizontal plane to ensure even force distribution when lifting the pallet 600. This structural design ensures the pallet 600 remains balanced during vertical lifting, preventing it from tilting or tipping over. It is particularly suitable and safe for large pallets 600 or pallets 600 carrying heavy ribbon boxes 700.

[0041] As an optional embodiment, each group of four positioning blocks 200 corresponds to one bracket 300, thereby ensuring that each pallet 600 can be stably supported and accurately positioned during lifting and handling. This design improves operational flexibility, allowing the loading and unloading of pallets 600 to be carried out simultaneously, improving production line efficiency, and reducing the risk of damage to pallets 600 caused by unstable lifting.

[0042] It should be noted that the drive structure described in this embodiment can be a cylinder, an electric push rod, or other drive forms, which can be flexibly selected in different production environments to meet the needs of different pallet sizes, weights, and operating speeds.

[0043] Reference Figure 3 and Figure 10As shown, in this embodiment, the bottom of the tray 600 has a wide bottom edge 610 structure. To accommodate the characteristics of the wide bottom edge 610, a lower extension 240 is integrally extended below the positioning block 200. The inner side of the lower extension 240 and the inner side of the positioning block 200 together form an active space 241 for accommodating the up-and-down movement of the wide bottom edge 610 of the tray 600. This allows the wide bottom edge 610 to be stably engaged with the bottom of the positioning block 200 when the tray 600 is transported to the positioning interval 210, thereby ensuring that the tray 600 is reliably limited in both the longitudinal and lateral directions.

[0044] To further improve the import efficiency, a second guide slope 242 is provided on the inner bottom of the lower extension 240. When the tray 600 enters the positioning interval 210, the tray 600 first contacts the second guide slope 242 and slides into the activity space 241 under its action, avoiding the problem that the tray 600 cannot be positioned smoothly due to the bottom edge being blocked.

[0045] Furthermore, the lower extension 240 is composed of a first block 243 and a second block 244, which are arranged perpendicularly to each other. The first block 243 is located on the side perpendicular to the conveyor belt 110's conveying direction, and its length is designed to be greater than that of the second block 244. This allows the first block 243 to achieve a secure bolted or welded connection with the conveyor belt 110 frame plate 201 through a longer contact surface, thereby improving the structural strength and installation stability of the overall positioning block 200. The second block 244 is located on the side perpendicular to the conveyor belt 110's conveying direction. When the pallet 600 is lifted into the positioning section 210, this part can preferentially contact and abut against the side wall of the pallet 600, preventing the pallet 600 from shifting due to inertia or minor deviations during its ascent.

[0046] In addition, a second through groove 2441 is provided vertically on the second block 244 near the first block 243. The cross-section of the second through groove 2441 is designed as an arc-shaped structure, so that when the bottom edge or corner of the tray 600 enters, it forms a planar contact with the second block 244 rather than a sharp corner contact, thereby effectively dispersing contact stress, reducing frictional resistance, and preventing the tray 600 from getting stuck.

[0047] As an optional embodiment, since a very small gap is usually reserved between the positioning interval 210 enclosed by each set of positioning blocks 200 and the outer contour of the tray 600, this gap can prevent the tray 600 from getting stuck due to excessive tightness during the upward movement into the positioning interval 210. On the other hand, it can also cause a certain amount of play in the tray 600. If the tray 600 is affected by the inertia of the conveyor belt 110 or external force during the lifting process, it may experience a slight displacement, affecting the subsequent alignment accuracy. To this end, this embodiment has a damping plate 2431 vertically detachably provided on the inner side of the first block 243. The damping plate 2431 is made of a metal material with good elastic recovery ability, such as spring steel or stainless steel elastic sheet, to ensure that it can deform to a certain extent and quickly return to its original position after being subjected to force.

[0048] Specifically, the bottom of the damping plate 2431 is inclined towards the center of the conveyor belt 110, forming an acute angle with the plane of the first block 243. When the pallet 600 moves upward into the positioning interval 210, its edge first contacts the bottom of the damping plate 2431. Under the action of the contact force, the damping plate 2431 undergoes elastic deformation, gradually guiding the edge of the pallet 600 closer to the center of the positioning interval 210, thus playing a guiding and centering role. This elastic guiding design not only alleviates the impact caused by the rigid contact between the edge of the pallet 600 and the positioning block 200, but also actively corrects the position of the pallet 600 when there is a slight deviation, improving the success rate and stability of the pallet 600 entering the positioning interval 210.

[0049] To facilitate installation and disassembly, a vertical mounting groove 2433 is provided on the first block 243. The mounting rod 2432 of the damping plate 2431 is inserted into the mounting groove 2433 to complete the installation. The installation or replacement process is simple and quick, facilitating later maintenance and replacement of damping plates 2431 with different elastic parameters to meet the guiding requirements of pallets 600 of different specifications. The design of the receiving groove 2434 prevents the damping plate 2431 from protruding significantly from the outer surface of the first block 243, thus avoiding interference with the normal upward movement path of the pallet 600.

[0050] Furthermore, the damping plate 2431 can not only be installed on the first block 243, but also, depending on the actual layout requirements, be installed on the second block 244 or other positions on the overall positioning block 200, providing a variety of flexible implementation methods. By configuring the damping plate 2431 in different positions, guidance correction can be achieved in both the longitudinal and lateral directions of the pallet 600, further improving the fault tolerance of the positioning section 210 and the smoothness of the pallet 600 introduction process.

[0051] As an optional embodiment, the support plate 400 is provided with a first limiting structure 410. The first limiting structure 410 moves synchronously with the lateral movement of the support plate 400 and abuts against the side wall edge of the pallet 600 during the clamping and positioning process, thereby achieving lateral limiting of the pallet 600. With this structural arrangement, when the pallet 600 is lifted off the conveyor belt 110 and clamped and positioned by the support plate 400, its horizontal position can be further constrained, effectively avoiding lateral displacement caused by inertia or external force interference. The specific form of the first limiting structure 410 can be varied, such as a locking block, a protruding edge locking part, or a limiting strip with a buffer layer, etc. Among them, the protruding edge locking form can reduce indentation or wear on the edge of the pallet 600 while ensuring limiting, and is suitable for the use of pallets 600 made of different materials.

[0052] Preferably, the first limiting structure 410 includes a limiting block 411, which is fixed to the top surface of the support plate 400. To accommodate pallets 600 of different sizes, the limiting block 411 has an oblong hole 4111 extending perpendicular to the length of the conveyor belt 110. Bolts pass through the oblong hole 4111 and are threadedly connected to the support plate 400. By tightening or loosening the bolts, the fixed position of the limiting block 411 can be adjusted within a certain range, allowing it to flexibly abut against the sidewall edges of pallets 600 of different sizes, thereby improving the applicability and scalability of the device.

[0053] As an alternative embodiment, the cross-sectional structure of the support plate 400 itself can be designed as L-shaped along the conveyor belt 110 conveying direction. After the two opposing support plates 400 move laterally and push the limiting block 411 against the side wall of the pallet 600, the space below their L-shape forms a receiving cavity, allowing the conveyor belt 110 to move freely when not carrying the pallet 600. When the pallet 600 is conveyed to the positioning area, the conveyor belt 110 carries the pallet 600 into the L-shaped space. The snap-fit ​​engagement of the support plate 400 and the limiting block 411 with the edge of the pallet 600 reliably limits the pallet 600, preventing lateral swaying or displacement. Because there is a fitting space below the L-shaped cross-section, it not only ensures the smooth passage of the pallet 600 conveyed by the conveyor belt 110, but also avoids hard interference between the support plate 400 and the conveyor belt 110 during the clamping and positioning process, thus balancing limiting accuracy and smooth conveying.

[0054] Reference Figure 4 and Figure 5As shown, a first position sensor 500 is installed on the conveyor belt 110 frame at the front end of the positioning section 210 to detect the conveying position of the pallet 600, ensuring that the pallet 600 is accurately sensed before reaching the bracket 300. In this embodiment, the first position sensor 500 can be a photoelectric, proximity, or laser rangefinder sensor, preferably a photoelectric reflective sensor. Its installation position is below, to the side, or above the conveyor belt 110 frame, maintaining a certain distance parallel or perpendicular to the moving trajectory of the pallet 600 on the conveyor belt 110, ensuring a reliable trigger signal when the pallet 600 enters the sensor's detection range. The sensor is electrically connected to the bracket 300 drive structure via a wire. When it detects that the pallet 600 has reached the predetermined position, it outputs an electrical signal to the controller. The controller then controls the bracket 300 to initiate a lifting action according to a preset program, allowing the pallet 600 to smoothly detach from the conveyor belt 110. This design effectively avoids errors in the number of pallets lifted, improves operational accuracy, prevents pallet 600 overlap or omission, and ensures smooth subsequent positioning and handling operations.

[0055] The second position sensor 510, installed on the positioning block 200 plate 201, is used to detect the lifting height of the pallet 600 in real time, ensuring that the pallet 600 is stably clamped and positioned by the support plate 400 when it reaches a predetermined lifting height. In this embodiment, the second position sensor 510 can be a magnetic proximity switch, a Hall sensor, or a photoelectric sensor, preferably a photoelectric reflective or grating sensor, to ensure high-precision detection of changes in the height of the pallet 600. The second position sensor 510 is vertically fixed on the side of the positioning block 200 plate 201, and its detection range covers the critical height range of the pallet 600's upward stroke. The sensor output signal is electrically connected to the controller, support plate 400, and bracket 300 drive structure via a wire or industrial bus interface. When the lifting height of the pallet 600 reaches the predetermined value, the controller receives the signal and immediately controls the drive structure to drive the support plate 400 to move horizontally to clamp and position the pallet 600, while simultaneously instructing the bracket 300 drive structure to stop moving upward and retract in time.

[0056] In different embodiments, to improve reliability, both the first position sensor 500 and the second position sensor 510 can be configured with redundancy, or a two-point detection mode can be adopted. The position and height of the tray 600 are determined through cross-verification of the dual sensors, avoiding operational abnormalities caused by single-point failure. Furthermore, sensor installation can be achieved through threaded fixing, sliding groove adjustment, or bracket clamping. After installation, the bracket position can be adjusted to precisely align with the moving trajectory and lifting path of the tray 600, ensuring accurate signal triggering. The electrical connection between the sensor and the controller can reduce electromagnetic interference through shielded cables. Simultaneously, in conjunction with the controller software logic, delay or signal filtering can be set to eliminate false triggering caused by slight shaking of the tray 600, ensuring stable lifting of the tray 600 and coordinated clamping and positioning actions of the support plate 400.

[0057] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A ribbon box tray receiving and positioning device, characterized in that, include: Positioning blocks (200) are installed above the conveyor belt (110), and at least one pair is provided to form a positioning interval (210) for the pallet (600) and are distributed diagonally relative to the pallet (600). The positioning blocks (200) have an L-shaped cross section for engaging the corners of the pallet (600), and a first guide slope (220) is provided on the lower inner side for guiding the pallet (600) into the positioning position. The bracket (300) is disposed between the conveyor belts (110) and configured to lift the pallet (600) and move it vertically when the pallet (600) is conveyed to the top of the bracket (300) by the drive structure, so that the pallet (600) is removed from the conveyor belt (110) and enters the positioning area (210). A support plate (400) is mounted above the conveyor belt (110) and configured to move horizontally under the action of a drive structure to clamp and position the pallet (600) after it has been disengaged from the conveyor belt (110).

2. The ribbon box tray receiving and positioning device according to claim 1, characterized in that, The positioning block (200) is located above the conveyor belt (110) frame, and the height of its bottom from the surface of the conveyor belt (110) is equal to the thickness of the tray (600). And / or, the positioning blocks (200) are arranged in multiple sets along the conveying direction of the conveyor belt (110), each set including two pairs of positioning blocks (200), the two pairs of positioning blocks (200) are located at the four corners of the tray (600) and together form the positioning interval (210). And / or, the support plate (400) is provided corresponding to the positioning interval (210), each positioning interval (210) is provided with a pair of support plates (400), and the pair of support plates (400) are symmetrically installed on the frame on both sides of the conveyor belt (110); And / or, the positioning block (200) has a first through groove (230) at the inner corner position in the vertical direction, and the inner wall of the positioning block (200) protrudes outward relative to the inner wall of the first through groove (230); And / or, the bracket (300) includes a central rod (310), on which a plurality of parallel first rods (320) are fixedly inserted, and each of the first rods (320) is provided with a support block (330), and the top walls of all the support blocks (330) are located on the same horizontal plane.

3. The ribbon box tray receiving and positioning device according to claim 2, characterized in that, Each of the positioning blocks (200) corresponds to one of the brackets (300).

4. The ribbon box tray receiving and positioning device according to any one of claims 1-3, characterized in that, The positioning block (200) has a lower extension (240) below it. The inner side of the lower extension (240) and the inner side of the positioning block (200) form an active space (241) for the wide bottom edge (610) of the tray (600) to move into. A second guide slope (242) is provided at the bottom of the inner side of the lower extension (240).

5. The ribbon box tray receiving and positioning device according to claim 4, characterized in that, The lower extension (240) includes a first block (243) and a second block (244). The first block (243) is located on one side perpendicular to the conveying direction of the conveyor belt (110), and the second block (244) is located on one side of the conveying direction of the conveyor belt (110). The length of the first block (243) is longer than the length of the second block (244).

6. The ribbon box tray receiving and positioning device according to claim 5, characterized in that, A second through slot (2441) is provided vertically on the second block (244) near the first block (243); And / or, the first block (243) is vertically arranged with a detachable damping plate (2431), the bottom of the damping plate (2431) is inclined, the damping plate (2431) is inclinedly installed on the first block (243), and the first block (243) is provided with a receiving groove (2434) for the damping plate (2431) to deform into.

7. The ribbon box tray receiving and positioning device according to claim 2, characterized in that, The support plate (400) is provided with a first limiting structure (410), which moves with the support plate (400) and abuts against the side wall edge of the tray (600) during the movement to achieve limiting.

8. The ribbon box tray receiving and positioning device according to claim 7, characterized in that, The first limiting structure (410) includes a limiting block (411), which is located on the top of the support plate (400). The limiting block (411) has an oblong hole (4111) for threading a bolt through it and connecting it to the support plate (400) to adjust and fix the position of the limiting block (411) by means of the bolt.

9. The ribbon box tray receiving and positioning device according to claim 8, characterized in that, The cross section of the support plate (400) along the conveying direction of the conveyor belt (110) is L-shaped. After the limiting block (411) abuts against the edge of the side wall of the pallet (600), the space below the L-shaped support plate (400) is just enough to accommodate the conveyor belt (110) to transport the pallet (600) through.

10. The ribbon box tray receiving and positioning device according to claim 1, characterized in that, A first position sensor (500) is provided on the frame of the conveyor belt (110) at the front end of the positioning interval (210). The first position sensor (500) is used to detect the conveying position of the tray (600) and is electrically connected to the drive structure of the bracket (300) so as to output a signal to the controller when the tray (600) is detected to have reached the predetermined position, and the controller controls the drive structure of the bracket (300) to move. And / or, a second position sensor (510) is provided on the plate (201) on which the positioning block (200) is installed. The second position sensor (510) is used to detect the lifting height of the tray (600) and is electrically connected to the drive structure of the support plate (400) and the drive structure of the bracket (300) so as to output a signal to the controller when the lifting height reaches a predetermined value. The controller controls the drive structure of the support plate (400) to move to drive the support plate (400) to clamp the positioning tray (600), and at the same time controls the drive structure of the bracket (300) to stop the upward movement of the bracket (300) and retract it in time.

Images