Automatic feeding device of a sheet metal compounder

Abstract

The application discloses a kind of automatic feeding devices of sheet composite machine, mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.It is mainly related to sheet composite processing field.

Description

Technical Field

[0001] This invention relates to the field of sheet metal composite processing equipment, specifically an automatic feeding device for a sheet metal composite machine. Background Technology

[0002] In the sheet metal lamination process, sheet metal such as cutting plates and spring pads needs to be laminated. The sheet metal is first cut into stacked sheets of a certain size on a slitting machine, and then the cut stacked sheets are transported to the feeding position of the laminating machine, where the laminating machine performs lamination sheet by sheet.

[0003] Currently, the transfer and loading of sheet metal from the slitting machine to the laminating machine mainly relies on manual operation. After the laminating machine runs out of sheet metal, operators need to manually move the stacked sheet metal from the slitting machine to the loading position on the laminating machine. This manual handling method has the following prominent problems: First, manual handling is inefficient, requiring operators to frequently travel between the slitting machine and the laminating machine, resulting in high labor intensity; second, manual loading makes it difficult to ensure accurate and timely replenishment, easily leading to situations where the laminating machine is short of material or experiences excessive accumulation, affecting the overall feeding efficiency and continuity of the laminating machine, and consequently impacting its processing efficiency.

[0004] To address the aforementioned issues, existing improved technical solutions include connecting the slitting machine and the laminating machine using a conveyor belt. After cutting, the stacked sheets are placed on the conveyor belt and transported directly to the laminating machine's loading position. While this method improves loading efficiency and reduces manual handling to some extent, it still has the following drawbacks: After the sheets are used up on the laminating machine, the conveyor belt cannot automatically start to replenish them; operators still need to monitor the sheet usage and manually start the conveyor belt when replenishment is needed. Since the sheet usage speed is not completely uniform and constant, the timing of manual replenishment is often inaccurate, easily leading to premature replenishment causing sheet accumulation at the loading position, or delayed replenishment causing the laminating machine to stop due to material shortage. This loading method, reliant on manual monitoring and operation, results in discontinuous loading of the laminating machine, and the convenience and efficiency of feeding still need further optimization.

[0005] Furthermore, in existing conveyor belt feeding systems, the sheet material conveying and feeding processes are combined. After the sheets are conveyed to the feeding position on the conveyor belt, they are fed one sheet at a time directly onto the conveyor belt. The continuous operation of the conveyor belt and the intermittent feeding action can easily interfere with each other. The movement of the conveyor belt may affect the positioning accuracy of the sheets during feeding, while the feeding action may hinder the conveying process of subsequent sheets. Coordinating the two actions is difficult, making it challenging to achieve efficient and stable automated feeding.

[0006] Therefore, there is an urgent need for an automatic feeding device that can automatically replenish and continuously feed sheet metal, and separate the conveying and feeding processes so as not to interfere with each other, in order to solve the above-mentioned problems existing in the prior art. Summary of the Invention

[0007] The purpose of this invention is to provide an automatic feeding device for a sheet metal laminating machine, which can solve the technical problems of discontinuous feeding and low efficiency of existing laminating machines. By sequentially setting a conveying station, a preparatory station, and a feeding station, as well as control components, the automatic replenishment and continuous feeding of sheet metal are realized. The conveying and feeding processes are separated from each other, which improves the efficiency and convenience of feeding.

[0008] To achieve the above objectives, the present invention employs the following technical solution: An automatic feeding device for a sheet metal laminating machine includes a conveying station and a feeding station. Multiple conveying rollers for driving sheet metal movement are rotatably connected to both the conveying and feeding stations. A first motor for driving the conveying rollers is installed at the conveying station, and a second motor for driving the conveying rollers is installed at the feeding station. A preparatory station is located between the conveying and feeding stations, and multiple conveying rollers are also rotatably connected to the preparatory station. A third motor for driving the conveying rollers is installed at the preparatory station. A feeding frame and a lifting column for driving the feeding frame to move up and down are located below the feeding station. A [missing information - likely a component or feature] is provided on one side of the feeding frame. A baffle for use with sheet metal extends upwards through the area between the conveyor rollers to above the loading station. The baffle has a loading port that allows only a single sheet metal to pass through. The loading station has multiple support seats that can move up and down between adjacent conveyor rollers at the loading station. Each support seat has a loading block that drives the bottom sheet metal toward the loading port. Each support seat also has a loading motor that drives the loading block to move. The direction of movement of the loading block is parallel to the axis of the conveyor rollers. The conveying station, the preparation station, and the loading station are all equipped with control components that automatically fill in the gaps between the sheet metal in sequence.

[0009] Furthermore, the control components include a PLC control system and a material shortage sensor. The material shortage sensor at the loading station is electrically connected to the second motor, the lifting column, the loading motor, and the third motor. The material shortage sensor at the preparation station is electrically connected to the third motor and the first motor. The material shortage sensor at the conveying station is electrically connected to the first motor.

[0010] Furthermore, a first telescopic column electrically connected to a material shortage sensor on the loading station is provided between the loading station and the preparation station, and a second telescopic column electrically connected to a material shortage sensor on the preparation station is provided between the preparation station and the conveying station. Both the first and second telescopic columns extend and retract vertically.

[0011] Furthermore, the side of the preparation station is provided with a baffle that is flush with the material stop, and the preparation station is provided with a push plate and a telescopic rod that drives the push plate to slide toward the baffle. The telescopic rod is electrically connected to the material shortage sensor on the preparation station.

[0012] Furthermore, the side of the preparation station is symmetrically equipped with guardrails, and the baffle and telescopic rod are respectively fixed on the guardrails on both sides. The guardrail where the telescopic rod is located is provided with multiple guide holes, and the side of the push plate is provided with multiple guide rods. The guide rods pass through the guide holes and are slidably connected to them.

[0013] Furthermore, an arc-shaped transition plate is provided on the side of the baffle closest to the conveying station.

[0014] Furthermore, the support includes symmetrically arranged inverted L-shaped plates, the top of the inverted L-shaped plates being in contact with the bottom of the sheet material, and the loading block moving between the two inverted L-shaped plates.

[0015] Furthermore, multiple sprockets are rotatably connected between the inverted L-shaped plates on both sides, and the feeding motor is used to drive one of the sprockets to rotate. Chains are externally meshed with the multiple sprockets, and the feeding block is fixed on the chain.

[0016] Furthermore, the baffle is symmetrically provided with baffles, the baffles are in contact with the side of the sheet material, the feeding port is formed by the bottom of the baffles and the bottom of the baffle, and the bottom of the baffles is rotatably connected with rollers.

[0017] Furthermore, the side of the stop bar that contacts the sheet metal is provided with multiple toothed grooves.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Automatic replenishment and continuous, efficient feeding: This invention sequentially sets up a conveying station, a preparatory station, and a feeding station, with control components at each station. When the control component at the feeding station detects that the sheet material has been used up, it automatically controls the lifting column to descend and the conveyor rollers to rotate, transporting the sheet material from the preparatory station to the feeding station for replenishment. When the preparatory station is short of material, it automatically replenishes from the conveying station. The entire replenishment process is automatically detected and controlled by the control components, requiring no manual monitoring or operation. This achieves automatic sheet material replenishment, ensuring the continuity of feeding to the laminating machine and significantly improving both feeding efficiency and the laminating machine's processing efficiency.

[0019] 2. Separation of Conveying and Loading Processes, No Interference: This invention features a liftable loading rack and support seat below the loading station. During sheet material conveying, the support seat descends below the conveyor rollers, allowing the sheet material to be smoothly conveyed to the loading position. When loading is required, the support seat rises, lifting the sheet material away from the conveyor rollers. The loading block on the support seat then drives the sheet material one sheet at a time through the loading port into the laminating machine. The sheet material conveying and loading processes are separated spatially and temporally. The conveyor rollers are only responsible for conveying sheet material between stations, and the loading block is only responsible for loading individual sheets. These two processes do not interfere with each other, ensuring the stability and reliability of their respective operations. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a front view of the present invention.

[0022] Figure 3 This is an appendix to the present invention. Figure 2 A cross-sectional view along the AA direction.

[0023] Figure 4 This is an appendix to the present invention. Figure 2 A cross-sectional view along the BB direction.

[0024] Figure 5 This is an appendix to the present invention. Figure 4 A cross-sectional view along the CC direction.

[0025] The labels shown in the attached diagram: 1. Conveying station; 2. Loading station; 3. Sheet material; 4. Conveying roller; 5. Preparatory station; 6. Loading rack; 7. Lifting column; 8. Material stop; 9. Loading port; 10. Bearing seat; 11. Loading block; 12. Loading motor; 13. Material shortage sensor; 14. First telescopic column; 15. Second telescopic column; 16. Baffle; 17. Push plate; 18. Telescopic rod; 19. Guardrail; 20. Guide hole; 21. Guide rod; 22. Arc transition plate; 23. Inverted L-shaped plate; 24. Sprocket; 25. Chain; 26. Stop bar; 27. Roller; 28. Tooth groove. Detailed Implementation

[0026] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined in this application.

[0027] Reference Figure 1 and Figure 2This invention describes an automatic feeding device for a sheet metal laminating machine. The main structure includes a conveying station 1 and a feeding station 2. Both conveying station 1 and feeding station 2 are horizontal platform structures, arranged sequentially along the conveying direction of the sheet metal 3. Multiple conveying rollers 4 are rotatably connected to both conveying station 1 and feeding station 2 via bearing seats. These rollers 4 are arranged in parallel and spaced intervals to drive the sheet metal 3 to move along the conveying direction. A first motor is provided on conveying station 1 to drive the conveying rollers 4, and a second motor is provided on feeding station 2 to drive the conveying rollers 4. Specifically, each of the multiple conveying rollers 4 has a sprocket at its end, and the sprockets are connected by chains or synchronous belts. The first motor or the second motor drives one of the sprockets to rotate, achieving synchronous drive of the multiple conveying rollers 4. The sheet metal 3, cut and stacked on the slitting machine, is conveyed towards feeding station 2 via the multiple conveying rollers 4 on conveying station 1. The sheet metal 3 entering feeding station 2 continues to be conveyed forward to the feeding position under the action of the conveying rollers 4. This structure enables automatic conveying of sheet metal 3 between various workstations, eliminating the need for manual handling and replenishment, thus significantly improving the efficiency and smoothness of sheet metal 3 loading. A preparatory workstation 5 is located between conveying workstation 1 and loading workstation 2. Multiple conveying rollers 4 are rotatably connected to the preparatory workstation 5 via bearing seats. A third motor is installed on the preparatory workstation 5 to drive the conveying rollers 4 at this workstation. The third motor uses the same drive method as the first and second motors. The preparatory workstation 5 is used to temporarily store the stacked sheet metal 3 conveyed from conveying workstation 1. When the sheet metal 3 at loading workstation 2 is used up, the sheet metal 3 temporarily stored at the preparatory workstation 5 can be promptly replenished to loading workstation 2. Since a stack of sheet metal 3 is always pre-stored at the preparatory workstation 5, even if there is a brief stoppage or replenishment delay in the slitting process, loading workstation 2 will not immediately run out of material, thereby avoiding the impact on the continuous loading of the laminating machine due to the lack of sheet metal 3 caused by untimely replenishment.

[0028] Below the loading station 2 is a loading rack 6 and a lifting column 7 that drives the loading rack 6 to move up and down. The lifting column 7 is a hydraulic cylinder or an electric push rod, with its cylinder body fixed to the ground or the frame, and its movable end fixedly connected to the bottom of the loading rack 6, driving the entire loading rack 6 to move vertically. Specifically, multiple guide columns are set at the bottom of the loading station 2, and multiple guide rings that slide and fit with the guide columns are set on the side of the loading rack 6 to improve the stability of the vertical movement of the loading rack 6. On the side of the loading rack 6 near the laminating machine, there is a baffle 8 for use with sheet metal 3. The baffle 8 is a vertical frame structure, with its lower end fixed to the loading rack 6 and its upper end extending upward through the gap area between adjacent conveyor rollers 4 to a certain height above the conveyor rollers 4 of the loading station 2. The bottom of the baffle 8 is provided with a loading port 9 that only allows a single sheet metal 3 to pass through. Multiple bearing seats 10 are welded and fixed at intervals along the axial direction of the conveyor rollers 4 on the loading rack 6. The position of the support seat 10 corresponds one-to-one with the gap position of the conveyor roller 4, and the support seat 10 can move up and down in the gap between adjacent conveyor rollers 4 at the loading station 2. Each support seat 10 is provided with multiple loading blocks 11, and the loading blocks 11 can reciprocate on the support seat 10 in a direction perpendicular to the conveying direction of the sheet 3 (i.e., the axial direction of the conveyor roller 4). The support seat 10 is provided with a loading motor 12 that drives the loading blocks 11 to move.

[0029] The specific loading steps are as follows: S1. When the sheet material 3 temporarily stored at the preparatory station 5 needs to enter the loading station 2, the lifting column 7 first drives the loading rack 6 to descend, so that the multiple support seats 10 on the loading rack 6 descend as a whole below the upper surface of the conveyor roller 4. At this time, the support seats 10 are hidden below the conveyor roller 4 and will not cause any obstruction to the movement of the sheet material 3 along the conveyor roller 4. The sheet material 3 on the preparatory station 5 smoothly enters the loading station 2 under the drive of the conveyor roller 4, and continues to move along the conveyor roller 4 of the loading station 2 until the side end face of the sheet material 3 contacts and is positioned with the side of the baffle 8. S2. After the sheet material 3 is in place on the conveyor roller 4, the lifting column 7 drives the loading rack 6 and the multiple support seats 10 on it to rise. The top of the support seat 10 protrudes upward from the gap between the adjacent conveyor rollers 4 and contacts the lower surface of the bottom sheet material 3 of the stacked sheet material 3, lifting the entire stack of sheet material 3 upward. After the sheet material 3 is lifted, its bottom surface disengages from the conveyor roller 4 and is no longer driven by the conveyor roller 4. The support seat 10 continues to rise, lifting the sheet material 3 upward to the height where the feeding port 9 on the baffle frame 8 is level with the feeding position of the laminating machine, and the lifting column 7 stops. S3, the feeding motors 12 on multiple support seats 10 start simultaneously, driving their respective feeding blocks 11 to move along the axial direction of the conveyor roller 4 toward the feeding port 9. During the movement, the end face of the feeding block 11 contacts the rear side of the bottom sheet material 3 in the stack, and pushes the sheet material 3 toward the feeding port 9. The other sheet materials 3 located above the bottom sheet material 3 are blocked by the vertical surface of the baffle frame 8 and cannot move forward with the bottom sheet material 3. Therefore, only the bottom sheet material 3 is pushed out by the feeding block 11 alone, passes through the feeding port 9 and enters the feed port of the laminating machine, completing the feeding of a single sheet material 3. After the bottom sheet 3 is pushed out, the remaining stacked sheets 3 above it automatically sink downwards by a sheet thickness under gravity. The subsequent feeding block 11, driven by the chain 25, moves again behind the sheet 3 to continue pushing the new bottom sheet 3 for feeding. This cycle repeats to achieve automatic and continuous feeding of single sheets of stacked sheets 3 on the feeding station 2.

[0030] Throughout the entire process, the conveying of sheet material 3 (transferring between workstations by conveyor rollers 4) and the loading of sheet material 3 (single sheet loading completed by the loading block 11 pushing after being lifted by the support seat 10) are carried out separately. During conveying, the support seat 10 lowers to avoid obstruction, and during loading, the support seat 10 rises to separate sheet material 3 from conveyor rollers 4. The two processes are independent of each other in space and time, without interfering with each other, ensuring the continuity and stability of sheet material 3 conveying and loading.

[0031] Conveying station 1, preparatory station 5, and loading station 2 are all equipped with control components that automatically replenish the material plates 3 sequentially. The control components are electrically connected to the first motor, second motor, third motor, lifting column 7, and loading motor 12.

[0032] The automatic replenishment process is as follows: S1. When the control component of the loading station 2 detects that all the sheet metal 3 on the carrier 10 has been used up (i.e., no sheet metal 3 is detected on the carrier 10), the control component controls the lifting column 7 to descend, causing multiple carriers 10 to descend below the conveyor rollers 4. Then, the control component controls the second and third motors to start, driving the conveyor rollers 4 of the loading station 2 and the preparation station 5 to rotate, conveying the sheet metal 3 temporarily stored in the preparation station 5 to the loading station 2. S2. When the control component detects that the sheet metal 3 has reached the predetermined position of the loading station 2, it controls the second motor to stop rotating, the sheet metal 3 stops conveying and rests on the multiple conveyor rollers 4 of the loading station 2. The control component then controls the lifting column 7 to rise, causing the carriers 10 to lift the sheet metal 3 upwards and separate it from the conveyor rollers 4 until the loading port 9 is level with the loading position of the laminating machine. Then, the loading motor 12 starts for a new round of loading. S3. Simultaneously, the control component at the preparatory station 5 detects that the sheet material 3 at this station has been transported to the loading station 2 and is missing. It then controls the first motor to start, driving the conveyor roller 4 of the conveying station 1 to rotate, transporting the sheet material 3 from the conveying station 1 to the preparatory station 5. When the control component at the preparatory station 5 detects that the sheet material 3 has arrived, it controls the third motor to stop rotating, and the sheet material 3 stops being transported and rests on the conveyor roller 4 of the preparatory station 5. S4. The first motor then continues to drive the conveyor roller 4 to rotate, continuing to transport subsequent sheet materials 3 until the control component at the conveying station 1 detects that the sheet material 3 has arrived and controls the first motor to stop.

[0033] In this way, when the feeding station 2 is short of material, the control component automatically replenishes the material from the standby station 5; when the standby station 5 is short of material, the control component automatically replenishes the material from the conveying station 1. The entire replenishment process is automatically detected and controlled by the control component, realizing the automatic sequential replenishment of the sheet metal 3 between the three stations without the need for manual monitoring and operation, which greatly improves the continuity and automation of feeding and enhances the overall efficiency of composite machining.

[0034] Preferably, the control components include a PLC control system and a material shortage sensor 13. The material shortage sensor 13 is a photoelectric sensor or proximity switch, installed at a predetermined detection position at each station, generally at the front end of the conveying direction. The material shortage sensor 13 at the loading station 2 is electrically connected to the second motor, lifting column 7, loading motor 12, and third motor, used to control the opening and closing of the second motor, lifting column 7, and loading motor 12, and the starting of the third motor. The material shortage sensor 13 at the preparatory station 5 is electrically connected to the third motor and the first motor, used to control the starting and closing of the first motor. The material shortage sensor 13 at the conveying station 1 is electrically connected to the first motor, used to control the closing of the first motor. The cooperation between the material shortage sensor 13 and the PLC control system enables timely and accurate detection of whether the sheet material 3 at the current station is in place or missing, and transmits the signal to the PLC control system. The PLC control system then controls the sequential operation of each actuator according to a preset logic program, making the detection of material shortage more accurate and reliable, and the replenishment more timely and efficient.

[0035] Preferably, a first telescopic column 14 electrically connected to a material shortage sensor 13 on the loading station 2 is provided between the loading station 2 and the preparation station 5. A second telescopic column 15 electrically connected to a material shortage sensor 13 on the preparation station 5 is provided between the preparation station 5 and the conveying station 1. Both the first telescopic column 14 and the second telescopic column 15 are electric push rods or cylinders that move vertically, and their movable ends can extend upwards to form an obstruction or retract downwards to release the obstruction. When the material shortage sensor 13 detects a material shortage at the loading station 2, the PLC control system controls the first telescopic column 14 to retract downwards, releasing the obstruction between the loading station 2 and the preparation station 5, allowing the sheet metal 3 on the preparation station 5 to smoothly enter the loading station 2. When the material shortage sensor 13 of the loading station 2 detects that the sheet metal 3 has arrived, the PLC control system controls the first telescopic column 14 to extend upwards, forming a vertical obstruction between the loading station 2 and the preparation station 5, preventing subsequent sheet metal 3 from entering the loading station 2 from the preparation station 5 and causing the sheet metal 3 to accumulate and become disorderly. Similarly, when the material shortage sensor 13 detects a material shortage at the preparation station 5, the second telescopic column 15 retracts downwards, allowing the sheet metal 3 from the conveying station 1 to enter the preparation station 5; after the material shortage sensor 13 at the preparation station 5 detects that the sheet metal 3 has arrived, the second telescopic column 15 extends upwards to form a blockage. The arrangement of the first telescopic column 14 and the second telescopic column 15 effectively ensures the accuracy and orderliness of the sequential replenishment of the sheet metal 3 between each station, avoiding chaotic movement of the sheet metal 3 between stations.

[0036] Preferably, the side of the preparatory station 5 is provided with a baffle 16 flush with the baffle 8. The baffle 16 is a vertical plate, welded and fixed to the side of the preparatory station 5. The preparatory station 5 is provided with a push plate 17 and a telescopic rod 18 that drives the push plate 17 to slide toward the baffle 16. The telescopic rod 18 is a cylinder, with its cylinder body fixed to one side and its movable end fixedly connected to the push plate 17. The telescopic rod 18 is electrically connected to the material shortage sensor 13 on the preparatory station 5. When the material shortage sensor 13 of the preparatory station 5 detects that the sheet material 3 has arrived, the PLC control system controls the telescopic rod 18 to extend, driving the push plate 17 to slide toward the baffle 16. During the movement, the push plate 17 pushes the entire stack of sheet material 3 that has just arrived at the preparatory station 5 toward the baffle 16 until one side of the sheet material 3 contacts the baffle 16. After being aligned by the push plate 17, the side of the sheet material 3 on the preparatory station 5 remains in a neat state of contact with the baffle 16. When the next batch of sheet metal 3 is conveyed from the preparation station 5 to the loading station 2, its sides can naturally maintain contact with the baffle 8. In this way, when the loading block 11 drives the bottom sheet metal 3 into the loading port 9, the upper sheet metal 3 is in close contact with the baffle 8, and the overall position is stable. It will not sway or tip over due to uneven stacking, ensuring the neatness and stability of the stacked sheet metal 3 during the loading process. The push plate 17 adjusts and organizes the position of the sheet metal 3 in advance at the preparation station 5, preparing for the smooth loading at the subsequent loading station 2.

[0037] Preferred, refer to Figure 3 On both sides of the preparatory station 5, guardrails 19 are symmetrically welded and fixed. Guardrails 19 are protective railings extending along the conveying direction. A baffle 16 is welded and fixed to one side of the guardrail 19, and the cylinder of the telescopic rod 18 is fixedly installed on the other side of the guardrail 19. Multiple guide holes 20 are provided on the guardrail 19 where the telescopic rod 18 is located. Multiple guide rods 21 are welded and fixed to the side of the push plate 17 facing the telescopic rod 18. The positions of the guide rods 21 correspond one-to-one with the guide holes 20, and the guide rods 21 pass through and slide through the guide holes 20. The guardrail 19 provides a stable installation support base for the baffle 16 and the telescopic rod 18. When the telescopic rod 18 drives the push plate 17 to slide laterally, the multiple guide rods 21 slide synchronously within the corresponding guide holes 20, providing precise linear guidance and rotational restriction for the lateral sliding movement of the push plate 17. This ensures that the push plate 17 always pushes the sheet metal 3 in a translational manner, without tilting or deflection, guaranteeing the accuracy and reliability of the sheet metal 3's position adjustment.

[0038] Preferably, an arc-shaped transition plate 22 is welded or integrally formed and fixed on the side of the baffle 16 near the conveying station 1. The arc-shaped transition plate 22 is an arc-shaped plate that bends and extends from the side of the baffle 16 toward the conveying station 1. When the sheet material 3 enters the preparatory station 5 from the conveying station 1 along the conveying roller 4, the front end of the sheet material 3 first contacts the arc-shaped surface of the arc-shaped transition plate 22. The arc-shaped transition plate 22 smoothly guides the movement direction of the sheet material 3, allowing the sheet material 3 to slide smoothly into the area of ​​the conveying roller 4 in the preparatory station 5 along the arc-shaped surface, avoiding direct collision or jamming between the front ends of the stacked sheet material 3 and the right-angle side of the baffle 16, thus ensuring the smoothness of the sheet material 3 entering the preparatory station 5.

[0039] Preferred, refer to Figure 5 Each support base 10 includes two symmetrically arranged inverted L-shaped plates 23. The lower end of the vertical portion of the inverted L-shaped plate 23 is welded and fixed to the loading frame 6, and the vertical portion extends upward through the gap between adjacent conveying rollers 4. The horizontal portion at the top of the inverted L-shaped plate 23 bends inward and extends horizontally, with its upper surface contacting the bottom of the plate 3, providing a horizontal support surface for the plate 3. The loading block 11 is located in the space between the two inverted L-shaped plates 23 and can move freely back and forth along the axial direction of the conveying rollers 4 within this space. The horizontal portions at the top of the two inverted L-shaped plates 23 provide two symmetrical and stable support points for the plate 3. After the support base 10 lifts the plate 3, the plate 3 is subjected to uniform force and its position is stable, ensuring the accuracy and smoothness of the subsequent loading block 11 pushing the plate 3. At the same time, the space between the two inverted L-shaped plates 23 provides sufficient movement space for the reciprocating movement of the loading block 11, and the loading block 11 will not interfere with the inverted L-shaped plates 23 when it moves.

[0040] Preferred, refer to Figure 4Multiple sprockets 24 are rotatably connected by bearings within the space between the two inverted L-shaped plates 23. The sprockets 24 are supported between the two inverted L-shaped plates 23 by bearing seats. A feeding motor 12 is fixedly installed below the side of the support base 10, and its output shaft is connected to the shaft of one of the sprockets 24 via a coupling to drive the sprocket 24 to rotate. A closed chain 25 is externally meshed with the multiple sprockets 24. A feeding block 11 is fixedly connected to a link of the chain 25 by screws or welding and moves with the chain 25. When the feeding motor 12 drives the sprockets 24 to rotate, it drives the chain 25 to rotate cyclically, and the feeding block 11 on the chain 25 continuously reciprocates with the chain 25. When the feeding block 11 moves with the chain 25 to the upper stroke section, the upper end face of the feeding block 11 is higher than the upper surface of the transverse portion of the inverted L-shaped plate 23, allowing it to contact the rear side of the bottommost plate 3 in the stacked plates 3 and push the plate 3 to move. When the feeding block 11 moves to the lower stroke section with the chain 25, it is located below the transverse portion of the inverted L-shaped plate 23 and will not contact the plate 3. The continuous cyclical movement of the chain 25 allows the feeding block 11 to intermittently push the bottom plate 3 for feeding, achieving continuous feeding of the plate 3. Preferably, there are three sprockets 24, which are arranged in a triangular distribution, with one sprocket 24 located at the bottom. The feeding motor 12 drives the lower sprocket 24 to rotate. Since the feeding motor 12 is installed on the side of the support seat 10 near the bottom, when the support seat 10 rises to a higher position with the feeding frame 6, the overall height of the feeding motor 12 is still lower than the height of the conveyor roller 4, and there will be no movement interference with the upper conveyor roller 4, ensuring the smooth up-and-down movement of the support seat 10.

[0041] Preferably, baffles 26 are symmetrically welded and fixed on the baffle frame 8. The baffles 26 are vertical members, and their inner sides contact the sides of the stacked sheet metal 3, limiting and guiding the stacked sides of the sheet metal 3. The loading port 9 is formed by a rectangular opening between the bottom of the baffles 26 and the bottom crossbeam of the baffle frame 8. The height of the opening is slightly greater than the thickness of a single sheet metal 3, allowing only a single sheet metal 3 to pass through. The baffles 26 block all sheet metal 3 above the stacked sheet metal 3 except for the bottom sheet, preventing them from passing through the loading port 9. The bottom of the baffles 26 is rotatably connected to a roller 27 via a pin. When the bottom sheet metal 3 is pushed through the loading port 9 by the loading block 11, the upper surface of the sheet metal 3 rolls in contact with the circumferential surface of the roller 27, causing the roller 27 to rotate accordingly. The roller 27 converts the sliding friction between the sheet metal 3 and the bottom of the stop bar 26 into rolling friction, effectively preventing the surface of the sheet metal 3 from being scratched or abraded by the bottom of the stop bar 26, protecting the surface quality of the sheet metal 3, and improving the smoothness and integrity of the sheet metal 3 feeding.

[0042] Preferably, the inner surface of the stop bar 26 that contacts the sheet metal 3 is machined with multiple grooves 28. The grooves 28 are small horizontal grooves arranged vertically, which increases the surface roughness and friction coefficient between the inner surface of the stop bar 26 and the side surface of the sheet metal 3. When the side surface of the stacked sheet metal 3 contacts the stop bar 26, the friction between the grooves 28 and the side surface of the sheet metal 3 increases significantly, making it less likely for the sheet metal 3 to slip laterally with the stop bar 26 when pushed by the feeding block 11 or when the equipment vibrates. This better restricts the lateral position of the sheet metal 3, ensuring that the sheet metal 3 is always in a neat stacked state within the stop frame 8, and improves the stability of the sheet metal 3 during feeding.

[0043] Example: An automatic feeding device for a sheet metal laminating machine includes a conveying station 1, a preparatory station 5, and a feeding station 2 arranged sequentially along the conveying direction of the sheet metal 3. Each station is equipped with multiple conveying rollers 4, driven by a first motor, a third motor, and a second motor, respectively. Material shortage sensors 13 are installed at each of the conveying station 1, preparatory station 5, and feeding station 2. A feeding frame 6 is located below the feeding station 2, and a lifting column 7 drives the feeding frame 6 to rise and fall. A baffle 8 is welded to one side of the feeding frame 6, with a feeding port 9 and a baffle bar 26. The baffle bar 26 has a toothed groove 28 on its inner side and rollers 27 at its bottom. Multiple support seats 10 are welded to the feeding frame 6. Three sprockets 24 and a chain 25 are installed between two inverted L-shaped plates 23 of each support seat 10. A feeding block 11 is mounted on the chain 25, and a feeding motor 12 drives the lower sprockets 24 to rotate. A first telescopic column 14 is installed between the loading station 2 and the preparation station 5, and a second telescopic column 15 is installed between the preparation station 5 and the conveying station 1. Guardrails 19 are installed on both sides of the preparation station 5. One side of the guardrail 19 has a baffle 16 and an arc-shaped transition plate 22 welded on it, while the other side has a telescopic rod 18 and a push plate 17. A guide rod 21 is welded to the push plate 17 to engage with the guide hole 20 on the guardrail 19. All sensors and motors are electrically connected to the PLC control system. During operation, the sheet material 3 enters the loading station 2 from the conveying station 1 via the preparation station 5. The support seat 10 rises to lift the sheet material 3 away from the conveying roller 4. The loading motor 12 drives the chain 25 and the loading block 11 to move cyclically. The loading block 11 pushes the bottom sheet material 3 into the loading port 9 to enter the laminating machine. When there is a shortage of material, each station automatically fills the gap sequentially, and the push plate 17 of the preparation station 5 aligns and arranges the sheet material 3. The material shortage sensors 13 at each workstation are linked to control the lifting and lowering of the first telescopic column 14 and the second telescopic column 15, so as to realize the orderly automatic replenishment and continuous feeding of the sheet material 3.

Claims

1. An automatic feeding device for a sheet metal laminating machine, comprising a conveying station (1) and a feeding station (2), wherein both the conveying station (1) and the feeding station (2) are rotatably connected to a plurality of conveying rollers (4) for driving the sheet metal (3) to move; the conveying station (1) is provided with a first motor for driving the conveying rollers (4) to rotate, and the feeding station (2) is provided with a second motor for driving the conveying rollers (4) to rotate, characterized in that: A preparatory station (5) is provided between the conveying station (1) and the loading station (2). Multiple conveying rollers (4) are rotatably connected to the preparatory station (5). A third motor is provided on the preparatory station (5) to drive the conveying rollers (4) to rotate. A loading rack (6) and a lifting column (7) for driving the loading rack (6) to move up and down are provided below the loading station (2). A baffle (8) for use with the sheet metal (3) is provided on one side of the loading rack (6). The baffle (8) extends upward through the area between the conveying rollers (4) to the top of the loading station (2). The baffle (8) is equipped with a mechanism that allows only a single sheet metal (3) to pass through. The feeding port (9) is provided with multiple support seats (10) on the feeding frame (6). The support seats (10) can move up and down between adjacent conveying rollers (4) of the feeding station (2). The support seats (10) are provided with a feeding block (11) that drives the bottom plate (3) to move toward the feeding port (9). The support seats (10) are provided with a feeding motor (12) that drives the feeding block (11) to move. The moving direction of the feeding block (11) is parallel to the axial direction of the conveying roller (4). The conveying station (1), the preparation station (5), and the feeding station (2) are all provided with control components that control the automatic replacement of the plate (3) in sequence.

2. The automatic feeding device for a sheet metal laminating machine according to claim 1, characterized in that: The control components include a PLC control system and a material shortage sensor (13). The material shortage sensor (13) of the loading station (2) is electrically connected to the second motor, the lifting column (7), the loading motor (12), and the third motor. The material shortage sensor (13) of the preparation station (5) is electrically connected to the third motor and the first motor. The material shortage sensor (13) of the conveying station (1) is electrically connected to the first motor.

3. The automatic feeding device for a sheet metal laminating machine according to claim 2, characterized in that: A first telescopic column (14) electrically connected to a material shortage sensor (13) on the loading station (2) is provided between the loading station (2) and the preparation station (5). A second telescopic column (15) electrically connected to a material shortage sensor (13) on the preparation station (5) is provided between the preparation station (5) and the conveying station (1). Both the first telescopic column (14) and the second telescopic column (15) move vertically.

4. The automatic feeding device for a sheet metal laminating machine according to claim 2, characterized in that: The side of the preparation station (5) is provided with a baffle (16) that is flush with the baffle (8). The preparation station (5) is provided with a push plate (17) and a telescopic rod (18) that drives the push plate (17) to slide toward the baffle (16). The telescopic rod (18) is electrically connected to the material shortage sensor (13) on the preparation station (5).

5. The automatic feeding device for a sheet metal laminating machine according to claim 4, characterized in that: The preparatory work station (5) is symmetrically provided with guardrails (19) on its side. The baffle (16) and telescopic rod (18) are respectively fixed on the guardrails (19) on both sides. The guardrail (19) where the telescopic rod (18) is located is provided with multiple guide holes (20). The side of the push plate (17) is provided with multiple guide rods (21). The guide rods (21) pass through the guide holes (20) and are slidably connected to them.

6. The automatic feeding device for a sheet metal laminating machine according to claim 4, characterized in that: An arc-shaped transition plate (22) is provided on the side of the baffle (16) near the conveying station (1).

7. The automatic feeding device for a sheet metal laminating machine according to claim 1, characterized in that: The support seat (10) includes symmetrically arranged inverted L-shaped plates (23), the top of the inverted L-shaped plates (23) is in contact with the bottom of the plate (3), and the loading block (11) moves between the inverted L-shaped plates (23) on both sides.

8. The automatic feeding device for a sheet metal laminating machine according to claim 7, characterized in that: Multiple sprockets (24) are rotatably connected between the inverted L-shaped plates (23) on both sides. The feeding motor (12) is used to drive one of the sprockets (24) to rotate. The multiple sprockets (24) are externally meshed with chains (25). The feeding block (11) is fixed on the chain (25).

9. The automatic feeding device for a sheet metal laminating machine according to claim 1, characterized in that: The baffle (8) is symmetrically provided with baffles (26), the baffles (26) are in contact with the side of the plate (3), the loading port (9) is formed between the bottom of the baffles (26) and the bottom of the baffle (8), and the bottom of the baffles (26) is rotatably connected with rollers (27).

10. The automatic feeding device for a sheet metal laminating machine according to claim 9, characterized in that: The side of the stop bar (26) that contacts the sheet metal (3) is provided with multiple toothed grooves (28).

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