A conveying device and an adjusting assembly for a blister plate

Abstract

The application relates to a conveying device and adjusting assembly of a blister plate, which comprises a conveying frame, both ends of the conveying frame are provided with rotating shafts, both ends of the rotating shafts are provided with chain wheels, corresponding chain wheels are driven through chains, a plurality of detachable chain plates are fixed between the two chains; a driving device is arranged on the conveying frame, the driving device drives the chain wheels to rotate and drives the chains and the chain plates to move; an extension mechanism is arranged on the chain plate, the top end of the extension mechanism is flush with the upper surface of the chain plate during horizontal conveying, and the top end of the extension mechanism is extended to limit the bottom edge of the EVA blister plate during inclined upward conveying. The conveying device and adjusting assembly of the blister plate are switched and matched through the telescopic bracket and the inner plate, a single device is compatible with two working conditions of horizontal conveying and inclined upward conveying, the stable conveying of the EVA blister plate is guaranteed, a complex reversing mechanism is not needed, the equipment occupies a small area, and the investment cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of conveying equipment technology, and in particular to a conveying device and adjusting components for a thermoforming board. Background Technology

[0002] EVA vacuum forming sheet production lines require the connection of multiple functional areas, including loading area, pretreatment, spraying, drying, and unloading area. These areas have varying heights; for example, the drying chamber needs to be elevated, while the pretreatment tank needs to be on the ground. Conveying equipment must achieve both "straightened paths" and "three-dimensional layout" (multi-layer space utilization) to meet the processing and conveying requirements of the final assembly line for EVA vacuum forming sheets. Traditional technologies typically employ a combination of various equipment to form the final assembly line, including horizontal conveyor lines, inclined conveyor lines, and reversing mechanisms. Horizontal conveyor lines transport EVA vacuum forming sheets to the pretreatment area, inclined conveyor lines to the drying area, and reversing mechanisms to switch the EVA vacuum forming sheets from horizontal to inclined conveyor lines. Overall, existing technologies lack an integrated conveying system capable of adapting to conveying EVA vacuum forming sheets to different heights.

[0003] In view of the above-mentioned shortcomings, the present invention aims to create a conveying device and adjusting component for a thermoforming board, making it more industrially valuable. Summary of the Invention

[0004] To solve the above technical problems, the purpose of this invention is to provide a conveying device for a thermoforming board, including a conveying frame, with a rotating shaft at both ends of the conveying frame, and a sprocket installed at both ends of the rotating shaft. The sprockets are driven by chains, and several evenly distributed detachable chain plates are fixed between the two chains.

[0005] The conveyor frame is equipped with a drive device, which drives the sprocket to rotate and drives the chain and chain plate to move.

[0006] The chain plate is equipped with a telescopic mechanism. When conveying horizontally, the top of the telescopic mechanism is flush with the upper surface of the chain plate. When conveying inclined upward, the top of the telescopic mechanism extends out to limit the bottom edge of the EVA blister board.

[0007] The telescopic mechanism includes a bracket, and the chain plate has a groove for the bracket to slide and retract;

[0008] The bracket is L-shaped and includes an integrally connected vertical section and a horizontal section, with the horizontal section positioned in the upward conveying direction of the EVA blister board.

[0009] The L-shaped bracket is covered with a soft material, and its hardness is lower than that of the EVA vacuum-formed board surface.

[0010] An inverted L-shaped inner plate that can move along the length of the chain plate is provided between the two chains. The inner plate has a top groove at the top of the inner corner and a side groove on the side.

[0011] The vertical section of the bracket is rotatably equipped with a top column;

[0012] When the top of the telescopic mechanism extends, the top column is attached to the upper surface of the inner plate;

[0013] When the top of the telescopic mechanism retracts, the end of the top column engages in the side groove.

[0014] A base is slidably mounted on the vertical section of the bracket. The base abuts against the top column. A hanging plate is fixed on the side of the base near the inner plate. A bottom column is rotatably mounted on the end of the hanging plate away from the base, which abuts against the top of the inner corner of the inner plate.

[0015] The bottom column is equipped with flanges at both ends, which abut against the inner plate sidewall and slide in the top groove respectively;

[0016] The horizontal section of the bracket is rotatably provided with an end shaft at the end away from the vertical section, and pressure plates are installed at both ends of the end shaft;

[0017] The bracket has a sliding channel on its vertical section, a connecting plate slides in the sliding channel, a lug is fixed at the top of the connecting plate, and a plate track is opened on the pressure plate, with the lug sliding in the plate track;

[0018] The chassis is assembled at the end of the connecting plate, and a spring is fitted on the vertical section. The two ends of the spring are fixed to the chain plate and the chassis, respectively.

[0019] Preferably, a first electric push rod is provided between the conveyor frame and the inner plate, the fixed end of the first electric push rod is installed on the conveyor frame, and the inner plate is installed on the telescopic end of the first electric push rod;

[0020] During horizontal conveying, the first electric push rod retracts to offset the inner plate from the bottom column and flange;

[0021] During inclined conveying, the first electric push rod extends to make the inner plate fit and abut against the bottom column and flange.

[0022] Preferably, the bottom column and the top column are distributed in parallel, and the length of the top column is greater than the length of the bottom column.

[0023] Preferably, the plate groove includes an expansion groove and a recycling groove;

[0024] The telescopic groove runs through the chain plate, and the vertical section of the bracket is slidably set in the telescopic groove.

[0025] The recycling trough is located on the side of the chain plate facing away from the inner plate, and the recycling trough is used for recycling by the pressure plate.

[0026] Preferably, a fixed frame and a third electric push rod are provided below the conveyor frame, the conveyor frame is hinged to the fixed frame, and the two ends of the third electric push rod are respectively hinged to the fixed frame and the conveyor frame;

[0027] All four corners of the bottom of the fixed frame are equipped with casters with brakes.

[0028] The present invention also discloses an adjustment component for use in the above-mentioned conveying equipment for blister boards, comprising a guide block, a bracket, and a second electric push rod;

[0029] The bracket is installed on the inner wall of the conveyor frame, the fixed end of the second electric push rod is installed on the bracket, and the guide block is installed on the telescopic end of the second electric push rod.

[0030] The guide block abuts against the end of the inner plate, and the upper surface of the guide block is inclined, with the end away from the inner plate tilting downwards.

[0031] By means of the above-described solution, the present invention has at least the following advantages:

[0032] 1. Enables free switching between horizontal and inclined working conditions:

[0033] This invention, through the switching and cooperation of the retractable bracket and the inner plate, allows a single device to be compatible with both horizontal and inclined upward conveying conditions, while ensuring stable conveying of EVA thermoforming boards. It eliminates the need for complex reversing mechanisms, reduces the equipment footprint, and lowers investment costs.

[0034] It replaces the traditional technology that requires the combination of multiple devices (horizontal conveyor lines, inclined conveyor lines, and reversing mechanisms, etc.);

[0035] Furthermore, the angle of the conveyor can be adjusted arbitrarily to adapt to different floor heights and different process equipment docking requirements.

[0036] 2. Ensure the surface quality of the EVA vacuum forming board:

[0037] This invention has two conveying states. First, when conveying horizontally, the bracket is fully retracted, and the surface of the chain plate is flat without protrusions, avoiding scratches and indentations caused by traditional fixed edge guards. Second, when conveying at an incline, the L-shaped bracket is covered with a soft material, which is lower than the surface hardness of the EVA blister board, to achieve soft contact blocking and prevent hard damage.

[0038] 3. Multi-directional interlocking and limiting ensures rigidity during inclined conveying:

[0039] The present invention achieves precise linkage between the bottom column, flange, and chassis through the hanging plate, which can fully exert the limiting and locking function under inclined conveying conditions, and can also achieve stable separation from the inner plate when switching working conditions, taking into account both the reliability of limiting and the convenience of working condition switching; at the same time, through the mechanical linkage of the plate channel, ear rod and connecting plate, the EVA vacuum forming plate is used to squeeze the pressure plate, automatically triggering the chassis to move upward, the bottom column to lock, and the spring to retract to absorb the impact of the plate.

[0040] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0041] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show a certain embodiment of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a schematic diagram of the conveying equipment for the vacuum forming board of the present invention.

[0043] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0044] Figure 3 This is a schematic diagram of the conveyor frame and fixing frame structure of the present invention.

[0045] Figure 4 This is a schematic diagram of the inner plate and guide block structure of the present invention.

[0046] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point B.

[0047] Figure 6 This is a schematic diagram of the conveyor frame and the first electric push rod structure of the present invention.

[0048] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at point C.

[0049] Figure 8 This is a schematic diagram of the first and second electric push rods of the present invention.

[0050] Figure 9 This is a schematic diagram of the top and bottom column structures of the present invention.

[0051] Figure 10 This is a schematic diagram of the vertical and horizontal segments of the present invention.

[0052] Figure 11 This is a schematic diagram of the connecting plate and lug structure of the present invention.

[0053] Figure 12 This is a schematic diagram of the top groove and side groove structure of the present invention.

[0054] In the diagram: 1. Conveyor frame; 2. Chain; 3. Chain plate; 4. Sprocket; 5. Plate groove; 501. Telescopic groove; 502. Recycling groove; 6. Bracket; 601. Vertical section; 602. Horizontal section; 7. End shaft; 8. Pressure plate; 801. Plate guide; 9. Sliding channel; 10. Connecting plate; 11. Ear rod; 12. Chassis; 13. Spring; 14. Inner plate; 1401. Top groove; 1402. Side groove; 15. Top column; 16. Hanging plate; 17. Bottom column; 18. Flange; 19. Guide block; 20. First electric push rod; 21. Bracket; 22. Second electric push rod; 23. Fixing frame; 24. Third electric push rod. Detailed Implementation

[0055] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0056] This invention provides, for example Figures 1-12 The illustrated conveying device for a thermoformed sheet includes a conveyor frame 1. Both ends of the conveyor frame 1 are equipped with rotating shafts, and sprockets 4 are fixedly mounted on both ends of each rotating shaft. Two corresponding sprockets 4 are connected via chains 2. Several evenly distributed chain plates 3 are fixedly connected between the two chains 2, and the chain plates 3 are detachable for easy maintenance and replacement. A driving device (not shown in the figure) is installed on the conveyor frame 1. The driving device includes a motor and other structures, with the motor fixedly mounted on the conveyor frame 1. One of the rotating shafts is fixedly connected to the motor's drive shaft. The driving device drives the sprockets 4 to rotate, causing the chains 2 and chain plates 3 to move synchronously, thus conveying the EVA thermoformed sheet.

[0057] The present invention provides a telescopic mechanism on the chain plate 3. During horizontal conveying, the top of the telescopic mechanism is flush with the upper surface of the chain plate 3 to form a flat conveying surface, avoiding scratches, indentations or deformation on the bottom surface of the EVA blister board. At the same time, the bottom of the telescopic mechanism provides stable support to ensure structural strength and smooth operation.

[0058] When conveying upwards at an incline, the top of the telescopic mechanism extends from the upper surface of the chain plate 3 to limit the bottom edge of the EVA thermoformed board laid on the chain plate 3, effectively preventing the board from slipping, shifting, or falling during the incline conveying process. The bottom of the telescopic mechanism has reinforcement measures to ensure that the telescopic mechanism does not shake or sway under stress, improving the positioning accuracy and operational reliability during incline conveying. This allows the same set of conveying equipment to be compatible with both horizontal and incline working conditions, improving the equipment's versatility and production line adaptability.

[0059] Reference Figure 2 , Figure 5 and Figure 9As shown, the telescopic mechanism includes a bracket 6. The chain plate 3 has a plate groove 5 for the bracket 6 to slide and retract. The bracket 6 includes an integrally connected vertical section 601 and a horizontal section 602. The vertical section 601 and the horizontal section 602 are L-shaped, and the horizontal section 602 is set in the direction of upward conveying of the EVA blister board. When the bracket 6 extends upward, the end of the EVA blister board is locked between the horizontal section 602 and the chain plate 3. The vertical section 601 forms a blocking support for the edge of the EVA blister board, effectively preventing the EVA blister board from sliding backward during inclined conveying. The horizontal section 602 presses against the upper surface of the EVA blister board, forming a downward pressure limit on the EVA blister board. Together with the chain plate 3, it achieves clamping and fixing of the EVA blister board in the vertical direction, avoiding warping, bouncing or shifting of the EVA blister board during inclined conveying, making the positioning of the board more reliable and the conveying more stable under inclined conveying conditions.

[0060] It should be noted that the L-shaped bracket 6 is covered with a soft material, which is less hard than the surface hardness of the EVA vacuum-formed board, thus achieving soft contact blocking and preventing hard damage.

[0061] Reference Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, an inner plate 14 is provided between the two chains 2. The inner plate 14 is distributed along the length direction of the conveyor frame 1 and can move horizontally along the length direction of the chain plate 3 (width direction of the conveyor frame 1). The inner plate 14 is inverted L shape. A top groove 1401 is provided at the top of the inner corner of the inner plate 14, and a side groove 1402 is provided on the side of the inner corner of the inner plate 14. Both the top groove 1401 and the side groove 1402 are distributed along the length direction of the inner plate 14. A top post 15 is rotatably provided on the side of the vertical section 601. When the top end of the telescopic mechanism extends from the upper surface of the chain plate 3, the top post 15 is attached to the upper surface of the inner plate 14. When the top end of the telescopic mechanism is retracted to be flush with the upper surface of the chain plate 3, the end of the top post 15 is engaged in the side groove 1402.

[0062] A horizontal section 602 is rotatably mounted with an end shaft 7 at the end furthest from the vertical section 601. Both ends of the end shaft 7 are fixedly connected to pressure plates 8. A base plate 12 is slidably mounted on the vertical section 601. The base plate 12 is close to the top column 15 and abuts against the top column 15. A groove is provided on the side of the base plate 12 near the corresponding chain plate 3. A hanging plate 16 is fixedly connected to the side of the base plate 12 near the inner plate 14. A bottom column 17 is rotatably mounted at the end of the hanging plate 16 furthest from the base plate 12. The bottom column 17 is parallel to the top column 15, and the length of the top column 15 is greater than the length of the bottom column 17. The bottom column 17 abuts against the top of the inner corner of the inner plate 14.

[0063] Both ends of the bottom column 17 are fixedly connected with flanges 18, which are circular in shape. One flange 18 abuts against the side wall of the inner plate 14, while the other flange 18 slides against the top groove 1401.

[0064] When the conveyor frame 1 is set in an inclined state, its downward inclined end is the EVA blister board feeding end, and its upward inclined end is the EVA blister board unloading end. Both ends of the inner plate 14 are a certain distance from the corresponding ends of the conveyor frame 1 to ensure that the flange 18 and the top groove 1401, and the top column 15 and the side groove 1402 are stably matched. The top groove 1401 and the side groove 1402 can be equipped with structures such as ball bearings to ensure that the flange 18 and the top column 15 slide smoothly. The ball bearings are not shown in the figure and can be selected according to actual needs. They will not be described in detail here.

[0065] Meanwhile, a sliding channel 9 is provided on the vertical section 601, and a connecting plate 10 is slidably arranged inside the sliding channel 9. The top of the connecting plate 10 is fixedly connected to a lug 11. A plate path 801 is provided at the end of the pressure plate 8 away from the end shaft 7, and the lug 11 is slidably arranged in the plate path 801. The chassis 12 is assembled and connected to the end of the connecting plate 10 away from the lug 11, and the chassis 12 is arranged in a ring around the vertical section 601. The chassis 12 can slide up and down along the height direction of the vertical section 601. A spring 13 is fitted on the outside of the vertical section 601. One end of the spring 13 is fixedly connected to the chain plate 3, and the other end of the spring 13 is fixedly connected to the groove on the upper surface of the chassis 12. The groove of the chassis 12 can completely accommodate the retracted spring 13.

[0066] The workflow for horizontally conveying EVA thermoforming sheets is as follows:

[0067] The first step is to control the inner plate 14 to be in a staggered and avoidant state with the bottom column 17 and the flange 18. When the chain plate 3 rotates to the bottom of the conveyor frame 1, under the elastic support force of the spring 13, the chassis 12 abuts against the top column 15 and drives the horizontal section 602 of the bracket 6 to retract into the interior of the plate groove 5.

[0068] When the chain plate 3 rotates to the top of the conveyor frame 1, the top of the bracket 6 is flush with the upper surface of the chain plate 3, forming a flat conveying surface, and the corresponding top column 15 and side groove 1402 are at the same height.

[0069] In the second step, since the length of the top column 15 is greater than the length of the bottom column 17, the end of the top column 15 away from the bracket 6 enters the side groove 1402. The operator places the EVA blister board on the chain plate 3 for conveying. During this process, the top column 15 and the side groove 1402 cooperate to form a rigid and stable support for the bottom of the bracket 6, effectively preventing the chain plate 3 from sinking, shaking or accidentally extending during the conveying process, and ensuring the smoothness of the conveying.

[0070] The workflow for conveying EVA vacuum forming boards at an upward tilt is as follows:

[0071] The first step is to control the inner plate 14, the bottom column 17, and the flange 18 to switch to a state where they can abut against each other and work together. When the chain plate 3 rotates to the top of the conveyor frame 1, the top column 15 moves smoothly along the guide surface at the top of the inner plate 14. At this time, the top column 15 drives the bracket 6 to extend upward, the spring 13 compresses the part, and the pressure plate 8 is in an inclined state, with the end near the vertical section 601 tilting downward.

[0072] The second step is for the operator to insert the bottom of the EVA vacuum forming board into the position between the horizontal section 602 and the chain plate 3. The bottom edge of the EVA vacuum forming board is pressed against the pressure plate 8, and the end of the pressure plate 8 near the vertical section 601 is flipped upward until it is horizontal.

[0073] At this time, the vertical section 601 forms a blocking support on the bottom edge of the EVA vacuum forming board, effectively preventing the EVA vacuum forming board from sliding backward during the inclined conveying process. The horizontal section 602 presses against the upper surface of the EVA vacuum forming board, forming a downward pressure limit on the EVA vacuum forming board. Together with the chain plate 3, it achieves clamping and fixing of the EVA vacuum forming board in the vertical direction, avoiding warping, bouncing or shifting of the EVA vacuum forming board during inclined conveying, making the board more reliably positioned and more stably conveyed under inclined conveying conditions.

[0074] Third, when the end of the pressure plate 8 near the vertical section 601 is flipped upwards until it is horizontal, the pressure plate 8, through the plate channel 801 opened on it, cooperates with the ear rod 11 to drive the connecting plate 10 to move smoothly upwards. The connecting plate 10 drives the chassis 12 to closely abut against the bottom of the chain plate 3, increasing the contact support area with the chain plate 3 and improving the overall force stability; and the spring 13 compresses accordingly to realize real-time force relief and buffering, avoiding direct hard contact between the EVA blister board and the bracket 6 and causing collisions.

[0075] At the same time, the hanging plate 16 connected to the connecting plate 10 synchronously drives the bottom column 17 to move upward. The bottom column 17 stably abuts against the top of the inner corner of the inner plate 14. One flange 18 on the bracket 6 tightly abuts against the side wall of the inner plate 14, and the other flange 18 is correspondingly inserted into the top groove 1401 on the inner plate 14 to form a fitting limit. The bracket 6 is constrained from multiple directions to prevent the bracket 6 from swaying left and right, swaying back and forth, or loosening radially during the transportation process.

[0076] During the conveying process, the top column 15 and the inner plate 14 work together to form a rigid and stable support for the bracket 6 and the bottom of the chain plate 3, effectively preventing the chain plate 3 from sinking, shaking or accidentally extending during the conveying process, thus ensuring the smoothness of the conveying.

[0077] In summary, this invention achieves free switching between horizontal and inclined upward conveying by setting a retractable bracket 6 on the chain plate 3. During horizontal conveying, the surface of the chain plate 3 is a smooth conveying surface without protrusions, while during inclined conveying, the surface of the chain plate 3 forms a protruding bracket 6, creating a reliable limit. It can maintain stable support for the chain plate 3 and the EVA vacuum forming board in both horizontal and inclined conveying states, solving the technical problem that traditional conveying equipment cannot simultaneously meet the requirements of horizontal and inclined conveying without slippage when processing EVA vacuum forming boards. This improves the equipment's versatility and production line adaptability, eliminates the need for automated robotic arms or suction cups, and reduces processing costs.

[0078] The present invention adopts a composite structure of L-shaped bracket 6 and pressure plate 8. When conveying at an incline, the vertical section 601 forms a backward obstruction on the bottom edge of the EVA blister board, and the horizontal section 602 forms a downward pressure limit on the upper surface of the board. Together with the chain plate 3, it realizes the upper and lower clamping and positioning. At the same time, the pressure plate 8 is pressed and flipped to trigger subsequent locking and buffering actions to ensure stable conveying.

[0079] This invention utilizes the linkage between the pressure plate 8, the guide rail 801, the lug 11, the connecting plate 10, and the spring 13 to automatically achieve the dual functions of buffering and unloading force and supporting and reinforcing when the pressure plate 8 flips to the horizontal position, thereby achieving the effects of protection, shock absorption, and reinforcement.

[0080] This invention achieves reliable locking under both horizontal and inclined conditions by switching and cooperating the inner plate 14, top column 15, bottom column 17 and flange 18. During horizontal conveying, the top column 15 cooperates with the side groove 1402 to prevent the bracket 6 from accidentally extending. During inclined conveying, the bottom column 17 and flange 18 form multi-directional interlocking and limiting with the top surface, side wall and top groove 1401 of the inner plate 14 respectively to prevent the bracket 6 from shaking, swaying and loosening. The top column 15 and inner plate 14 provide rigid support for the bracket 6 and chain plate 3 throughout the process, which not only ensures smooth operation, but also simplifies the control method and improves the conveying efficiency.

[0081] By setting up structures such as top column 15 and bottom column 17, the present invention forms a multi-point support and bi-directional limiting cooperation with the inner plate 14, which effectively prevents the bracket 6 from tilting, swaying and shaking during the extension and stress process, reduces the local stress and wear at the connection between the bracket 6 and the chain plate 3, extends the service life of the structure, and ensures that the bracket 6 is stable in posture and reliable in action during the conveying process, further improving the overall operating accuracy and durability of the equipment.

[0082] In addition, the bottom column 17, flange 18 and chassis 12 are precisely linked and coordinated through the hanging plate 16, which can fully exert the limiting and locking function under inclined conveying conditions, and can also achieve stable separation from the inner plate 14 when switching working conditions, taking into account both the reliability of limiting and the convenience of switching working conditions.

[0083] The elastic support force of spring 13 is adapted to the weight of the EVA blister board and the requirements of the conveying process. It will not make the EVA blister board difficult to insert due to excessive elasticity, nor will it fail to achieve effective buffering and support due to insufficient elasticity.

[0084] Reference Figure 2 , Figure 5 As shown, the plate groove 5 includes a telescopic groove 501 and a recycling groove 502, wherein the telescopic groove 501 passes through the chain plate 3, and the vertical section 601 is slidably disposed in the telescopic groove 501; the recycling groove 502 is located on the side of the chain plate 3 facing away from the inner plate 14, and the recycling groove 502 is used for recycling by the pressure plate 8.

[0085] Reference Figure 6 , Figure 8 As shown, a first electric push rod 20 is provided between the conveyor frame 1 and the inner plate 14. The fixed end of the first electric push rod 20 is fixedly installed on the inner wall of the conveyor frame 1, and the inner plate 14 is fixedly installed on the telescopic end of the first electric push rod 20. Under horizontal conveying: the telescopic end of the first electric push rod 20 is controlled to retract, so that the inner plate 14 is staggered and avoids the bottom column 17 and the flange 18. Under the inclined upward conveying condition: the telescopic end of the first electric push rod 20 is controlled to extend and retract, and the inner plate 14 and the bottom column 17 and the flange 18 are controlled to switch to a state in which they can abut against each other and cooperate in linkage.

[0086] In actual use, to further improve the operational stability and accuracy of switching between working conditions of the inner plate 14, the equipment is equipped with multiple first electric push rods 20. These first electric push rods 20 are evenly spaced along the length of the inner plate 14, synchronously driving the inner plate 14 to move horizontally along the length of the chain plate 3. This ensures that the inner plate 14 experiences uniform force and does not tilt during movement, while also providing a stable driving force. This avoids problems such as force imbalance and swaying caused by a single electric push rod, effectively guaranteeing the stability and reliability of the inner plate 14 during switching between horizontal and inclined conveying conditions. Simultaneously, It is also equipped with guide cylinders, guide rods and other guiding and positioning structures. The guide cylinders and guide rods correspond one-to-one and slide together. The guide cylinders are fixedly installed on the conveyor frame 1. One end of the guide rod is fixedly connected to the inner plate 14, and the other end is slidably inserted into the inside of the guide cylinder. Through the precise cooperation between the guide cylinder and the guide rod, the movement direction of the inner plate 14 is strictly limited, which effectively prevents the inner plate 14 from shifting left and right or moving up and down during movement or operation. This further helps to ensure the stability of the inner plate 14 and ensures that the inner plate 14 can achieve precise docking with the top column 15, bottom column 17 and flange 18, and can be adjusted according to the specific use.

[0087] A fixed frame 23 and a third electric push rod 24 are provided below the conveyor frame 1. The conveyor frame 1 is hinged to the fixed frame 23 via a hinge shaft. The third electric push rod 24 is located away from the hinge point between the conveyor frame 1 and the fixed frame 23. The fixed end of the third electric push rod 24 is hinged to the fixed frame 23, and the telescopic end of the third electric push rod 24 is hinged to the conveyor frame 1. The telescopic movement of the third electric push rod 24 drives the conveyor frame 1 to rotate around the hinge shaft, realizing the continuous adjustment of the tilt angle of the conveyor frame 1 to adapt to the docking requirements of production lines with different heights and slopes. At the same time, universal wheels with brake function are provided at the four corners of the bottom of the fixed frame 23. This not only facilitates the rapid movement, repositioning and adjustment of the equipment and the layout of the production line, but also locks and positions the equipment after it is in place through the brake structure, ensuring that the conveying equipment is stable and reliable under both horizontal and inclined conveying conditions, without displacement or shaking.

[0088] The present invention also discloses an adjustment component applied to the above-mentioned conveying equipment for blister boards, including a guide block 19, a bracket 21, and a second electric push rod 22. The bracket 21 is fixedly installed on the inner wall of the conveying frame 1, the fixed end of the second electric push rod 22 is fixedly installed on the bracket 21, the guide block 19 is fixedly installed on the telescopic end of the second electric push rod 22, the guide block 19 abuts against the end of the inner plate 14, and the upper surface of the guide block 19 is inclined, with the end of the guide block 19 away from the inner plate 14 inclined downward.

[0089] In horizontal conveying mode: control the extension end of the second electric push rod 22 to retract, so that the guide block 19 is misaligned with the inner plate 14. When the chain plate 3 rotates to the top of the conveyor frame 1, the end of the corresponding top column 15 away from the bracket 6 can enter the side groove 1402.

[0090] When the conveyor is tilted upward: the extension end of the second electric push rod 22 is extended so that the guide block 19 corresponds to the inner plate 14. The upper surface of the guide block 19 and the top of the inner plate 14 form a continuous guide surface. When the chain plate 3 rotates to the top of the conveyor frame 1, the top column 15 moves smoothly along the upper surface of the guide block 19 into the top of the inner plate 14.

[0091] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A conveying device for a thermoforming sheet, characterized in that: It includes a conveyor frame, with a rotating shaft at both ends of the conveyor frame. A sprocket is installed at both ends of the rotating shaft. The sprockets are driven by chains, and several evenly distributed detachable chain plates are fixed between the two chains. The conveyor frame is equipped with a drive device, which drives the sprocket to rotate and drives the chain and chain plate to move. The chain plate is equipped with a telescopic mechanism. When conveying horizontally, the top of the telescopic mechanism is flush with the upper surface of the chain plate. When conveying inclined upward, the top of the telescopic mechanism extends out to limit the bottom edge of the EVA blister board. The telescopic mechanism includes a bracket, and the chain plate has a groove for the bracket to slide and retract; The bracket is L-shaped and includes an integrally connected vertical section and a horizontal section, with the horizontal section positioned in the upward conveying direction of the EVA blister board. The L-shaped bracket is covered with a soft material, and its hardness is lower than that of the EVA vacuum-formed board surface. An inverted L-shaped inner plate that can move along the length of the chain plate is provided between the two chains. The inner plate has a top groove at the top of the inner corner and a side groove on the side. The vertical section of the bracket is rotatably equipped with a top column on its side; When the top of the telescopic mechanism extends, the top column is attached to the upper surface of the inner plate; When the top of the telescopic mechanism retracts, the end of the top column engages in the side groove. A base is slidably mounted on the vertical section of the bracket. The base abuts against the top column. A hanging plate is fixed on the side of the base near the inner plate. A bottom column is rotatably mounted on the end of the hanging plate away from the base, which abuts against the top of the inner corner of the inner plate. The bottom column is equipped with flanges at both ends, which abut against the inner plate sidewall and slide in the top groove respectively; The horizontal section of the bracket is rotatably provided with an end shaft at the end away from the vertical section, and pressure plates are installed at both ends of the end shaft; The bracket has a sliding channel on its vertical section, a connecting plate slides in the sliding channel, a lug is fixed at the top of the connecting plate, and a plate track is opened on the pressure plate, with the lug sliding in the plate track; The chassis is assembled at the end of the connecting plate, and a spring is fitted on the vertical section. The two ends of the spring are fixed to the chain plate and the chassis, respectively. A first electric push rod is provided between the conveyor frame and the inner plate. The fixed end of the first electric push rod is installed on the conveyor frame, and the inner plate is installed on the telescopic end of the first electric push rod. During horizontal conveying, the first electric push rod retracts to offset the inner plate from the bottom column and flange; During inclined conveying, the first electric push rod extends to make the inner plate fit and abut against the bottom column and flange; It also includes an adjustment assembly, which includes a guide block, a bracket, and a second electric push rod; The bracket is installed on the inner wall of the conveyor frame, the fixed end of the second electric push rod is installed on the bracket, and the guide block is installed on the telescopic end of the second electric push rod. The guide block abuts against the end of the inner plate, and the upper surface of the guide block is inclined, with the end away from the inner plate tilting downwards.

2. The conveying equipment for a thermoforming board according to claim 1, characterized in that: The bottom column and the top column are distributed in parallel, and the length of the top column is greater than the length of the bottom column.

3. The conveying equipment for a thermoforming board according to claim 1, characterized in that: The plate groove includes an expansion groove and a recycling groove; The telescopic groove runs through the chain plate, and the vertical section of the bracket is slidably set in the telescopic groove. The recycling trough is located on the side of the chain plate facing away from the inner plate, and the recycling trough is used for recycling by the pressure plate.

4. The conveying equipment for a thermoforming board according to claim 1, characterized in that: A fixed frame and a third electric push rod are provided below the conveyor frame. The conveyor frame is hinged to the fixed frame, and the two ends of the third electric push rod are respectively hinged to the fixed frame and the conveyor frame. All four corners of the bottom of the fixed frame are equipped with casters with brakes.

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