Feeding abnormality sensing mechanism of progressive die

Abstract

The application discloses a feeding abnormality sensing mechanism of a progressive die, and belongs to the technical field of the progressive die, and the technical scheme is as follows: the feeding abnormality sensing mechanism of the progressive die comprises a fixing device, a conveying device and a sensing device, the fixing device is connected with a workbench, the workbench is connected with a stamping mechanism, the conveying device is connected with the workbench, the conveying device, the fixing device and the stamping mechanism are sequentially arranged along a material conveying direction, the workbench is connected with a limiting assembly for limiting the length of the material conveyed by the conveying device, the sensing device is connected with the conveying device, a synchronous assembly is arranged between the sensing device and the conveying device, the synchronous assembly is connected with the conveying device and the sensing device, when the conveying device is connected with the limiting assembly, the sensing device changes, the stamping mechanism is electrically connected with a control module, and the fixing device, the conveying device and the sensing device are electrically connected with the control module, so that the possibility of loss is reduced.

Description

Technical Field

[0001] This application relates to the field of progressive die technology, and in particular to a feeding anomaly sensing mechanism for progressive dies. Background Technology

[0002] Currently, progressive dies consist of multiple stations, each sequentially linked to complete different processing steps, performing a series of different stamping processes in one stroke of the press. Progressive dies offer advantages such as high stamping production efficiency, safe and simple operation, long die life, and high product quality.

[0003] In related technologies, a progressive die stamping system includes a worktable, a feeding mechanism, and a stamping mechanism. The feeding mechanism is fixedly connected to the worktable, and the stamping mechanism is connected to the worktable and positioned close to the feeding mechanism. The feeding mechanism is electrically connected to a control module, and the stamping mechanism is also electrically connected to the control module. The control module controls the feeding mechanism and the stamping mechanism to work together. Material is fed to the stamping mechanism at a predetermined length via the feeding mechanism until it passes through the entire stamping mechanism, achieving the desired effect.

[0004] Regarding the aforementioned technologies, progressive dies suffer from a cascading problem: if the material feed at a certain station is incomplete (e.g., too much or too little material, misalignment, or material loss), and due to system settings, this often occurs simultaneously at multiple stations. Continuing processing in such situations can result in damage to the workpiece or, in severe cases, destruction of the die. However, because the feeding at each station is automated, it's difficult for humans to observe and assess, so the problem is often only discovered after the anomaly has occurred, by which time damage has already taken place. Summary of the Invention

[0005] To reduce the possibility of losses, the present invention provides a feeding anomaly sensing mechanism for a progressive die.

[0006] The feeding anomaly sensing mechanism for a progressive die provided by this invention adopts the following technical solution:

[0007] A feeding anomaly sensing mechanism for a progressive die includes a fixing device, a conveying device, and a sensing device. The fixing device is connected to a worktable, and the worktable is connected to a stamping mechanism. The conveying device is connected to the worktable. The conveying device, the fixing device, and the stamping mechanism are arranged sequentially along the material conveying direction. The worktable is connected to a limiting component that restricts the length of material conveyed by the conveying device. The sensing device is connected to the conveying device. A synchronization component is provided between the sensing device and the conveying device. The synchronization component is connected to both the conveying device and the sensing device. When the conveying device is connected to the limiting component, the sensing device changes position. The stamping mechanism is electrically connected to a control module. The fixing device, the conveying device, and the sensing device are all electrically connected to the control module.

[0008] By adopting the above technical solution, the material passes through the conveying device and the fixing device. The conveying device transports the material to the stamping mechanism for stamping, and the fixing device approaches and fixes the material. The stamping device then stamps the material. The limiting component is adjusted according to the length of the conveyed material, and the conveying device moves within the limiting range. When the conveying device moves to connect with the limiting component, it continues to move until the sensing device changes. At this point, the conveying device clamps the material, i.e., the conveying device has moved to the length of the material conveying distance. After the sensing device changes, it transmits an electrical signal to the control module. The fixing device disengages from the material, and the control module controls the conveying device to move in the opposite direction. The conveying device clamps the material and returns to its initial position, i.e., the conveying device conveys the material. When the conveying device returns to its initial position and reconnects with the limiting component, it continues to move until the sensing device changes. The fixing device fixes the workpiece again, and the stamping mechanism stamps the material. At this point, the conveying device disengages from the material and moves away from the fixing device, preparing to convey more material. Upon completion of stamping, the conveying device reconnects with the limiting component, and the above operation is repeated.

[0009] If the material is not fed to the correct position at a certain workstation, such as too much or too little material, or if there is a deviation, or if the material is damaged, the sensing device will not change its status. The sensing device will not transmit an electrical signal to the control module. If the control module does not receive an electrical signal from the sensing device within a fixed time, the conveying device will not convey the material. At the same time, the control module will control the stamping mechanism to stop stamping, so that the equipment will stop working immediately in the case of insufficient material feeding, reducing the possibility of loss.

[0010] Preferably, the worktable is provided with a sliding groove, the length of which is parallel to the material conveying direction. The limiting component includes a first limiting rod, a second limiting rod, and a fixing screw. The first limiting rod and the second limiting rod are both located on the same side of the material. The bottom end of the first limiting rod is connected to the worktable, and the bottom end of the second limiting rod matches the sliding groove. The second limiting rod extends into the sliding groove and is slidably connected to the worktable. The fixing screw passes through the second limiting rod and abuts against the worktable. The fixing screw is threadedly connected to the second limiting rod.

[0011] By adopting the above technical solution, the second limiting rod slides within the chute according to the length of the conveyed material until the conveying device moves between the first and second limiting rods, and the length of the conveyed material is the same as the expected material conveying length. Then, the fixing screw is adjusted to fix the position of the second limiting rod. The conveying device first disengages from the first limiting rod, and then connects to the second limiting rod. After the conveying device is connected to the second limiting rod, it will continue to move for a short period of time. Then, the conveying device clamps the material and moves towards the first limiting rod until it connects to the first limiting rod. After this period of continuous movement, it stops.

[0012] Preferably, the conveying device includes a driving component, a guide rod, a base, a clamping plate, and a control component. The driving component and the guide rod are both connected to the worktable. The driving component is electrically connected to the control module. The base is sleeved on the guide rod and slidably connected to the guide rod. The base is connected to the driving component. The direction in which the driving component drives the base and the length direction of the guide rod are both parallel to the material conveying direction. The base has a sliding groove for the clamping plate to move closer to or away from the material. A connecting block connected to the clamping plate is provided in the sliding groove. The control component is connected to the connecting block. After the control component is connected to the first limiting rod or the second limiting rod, the synchronous component and the clamping plate move synchronously, and the sensing device changes.

[0013] By adopting the above technical solution, the material passes between the clamping plate and the base. The drive unit is activated, causing the base to reciprocate along the length of the guide rod. The control component connects to either the first or second limit rod, thereby driving the clamping plate to move. When the control component connects to the second limit rod, the drive unit continues the original movement of the base, while the control component moves, causing the clamping plate to approach the base. Once both the clamping plate and the base are in contact with the material, clamping the material, the drive unit stops driving the base. Simultaneously, the control component drives the synchronization component, which in turn causes a change in the sensing device. This change in the sensing device transmits an electrical signal to the control module. The control module then controls the drive unit to move the base in the opposite direction, bringing the base closer to the first limit rod, until the control component connects to the first limit rod. The control component then moves in the opposite direction, causing the upper pressure plate to disengage from the material. The sensing device changes again, transmitting an electrical signal to the control module, which then controls the drive unit to move in the opposite direction.

[0014] Preferably, the base has a movable cavity for the control component to move within it, and the base also has a through hole connecting the movable cavity to the outside. The control component includes a control rod, a rotating shaft, a control gear, and a control rack. One end of the control rod passes through the through hole and extends into the movable cavity. The rotating shaft, the control gear, and the control rack are all located within the movable cavity. The rotating shaft is rotatably connected to the base, and the control rod is fixedly connected to the control rod. The control gear is sleeved on the rotating shaft and fixedly connected to the rotating shaft. The control rack is slidably connected to the base. The length direction of the control rack is parallel to the length direction of the sliding groove. The control rack meshes with the control gear. The connecting block is connected to the control rack. The synchronization component is connected to the rotating shaft. After the control rod abuts against the first or second limiting rod, the movement of the clamping plate and the change of the sensing device are realized.

[0015] By adopting the above technical solution, when the control rod abuts against the first limit rod and the second limit rod, the control rod is limited by the first limit rod or the second limit rod. At this time, the base continues to move, so a relative movement occurs between the control rod and the base. The control rod moves within the through hole, driving the rotating shaft to rotate. The rotating shaft drives the control gear to rotate, the control gear drives the control rack to rotate, the control rack drives the connecting block to move, and the connecting block drives the clamping plate to move. Simultaneously, the rotating shaft drives the synchronization component to move, and the synchronization component causes the sensing device to move and change.

[0016] Preferably, the sensing device includes a sensor light, a sensor switch, and a sensor block. The sensor light is connected to the base, the sensor switch is electrically connected to the sensor light, the sensor switch and the sensor block are both located in the movable cavity, the sensor block is connected to the synchronization component, and the sensor light is turned on after the sensor block is connected to the sensor switch. The sensor switch is electrically connected to the control module.

[0017] By adopting the above technical solution, when the synchronization component moves, the synchronization component drives the sensing block to approach the sensing switch until the sensing block touches the sensing switch, causing the sensing light to light up. The control module is connected to the control module, and the control module synchronizes the change of the sensing light through the change of the control module.

[0018] Preferably, the synchronization component is located within the movable cavity. The synchronization component includes a synchronization gear and a synchronization rack. The synchronization gear is sleeved on the rotating shaft and fixedly connected to the rotating shaft. The synchronization rack meshes with the base and is slidably connected to the sensing block.

[0019] By adopting the above technical solution, the rotation of the shaft drives the rotation of the synchronous gear, the synchronous gear drives the synchronous rack to move, and the synchronous rack drives the sensing block to move closer to or away from the sensing switch.

[0020] Preferably, a first pressure sensor is connected to the side wall of the first limiting rod near the first limiting rod. The first pressure sensor is electrically connected to the control module. When the control rod abuts against the first pressure sensor, the fixing device fixes the material.

[0021] By adopting the above technical solution, when the control rod is connected to the first limit rod, the control rod abuts against the first pressure sensor. When the first pressure sensor senses that the pressure from the control rod exceeds a certain value, the first pressure sensor transmits an electrical signal to the control module. After receiving the signal, the control module controls the fixing device to fix the material, so that the stamping mechanism can accurately position the material when stamping, and reduce the impact of the base and clamping plate movement on the material, thereby affecting the stamping.

[0022] Preferably, the second limiting rod is connected to a second pressure sensor, which is electrically connected to the control module. When the control rod abuts against the second pressure sensor, the fixing device moves away from the material.

[0023] By adopting the above technical solution, when the control rod is connected to the second limit rod, the control rod abuts against the second pressure sensor. When the second pressure sensor senses that the pressure from the control rod exceeds a set value, the second pressure sensor transmits an electrical signal to the control module. After receiving the signal, the control module controls the fixing device to fix the material, which facilitates the conveying of the material.

[0024] Preferably, the fixing device includes a base plate, a cylinder, and a fixing plate. The base plate is fixedly connected to the worktable, the cylinder is connected to the worktable, the fixing plate is connected to the cylinder, and the fixing plate covers the base plate. Material passes through the space between the fixing plate and the base plate. The cylinder is electrically connected to the control module.

[0025] By adopting the above technical solution, when the control module receives a change signal from the first pressure sensor or the second pressure sensor, the control module transmits an electrical signal to the cylinder. When the first pressure sensor changes, the cylinder moves the fixed plate closer to the bottom plate until both the fixed plate and the bottom plate are in contact with the material, that is, the fixed plate and the bottom plate cooperate to fix the material; when the second pressure sensor changes, the cylinder moves the fixed plate away from the bottom plate, and the fixed plate detaches from the material.

[0026] Preferably, the worktable is provided with a scale near the edge of the slide, and the scale is provided along the length direction of the slide.

[0027] By adopting the above technical solution, the scale is easier to adjust with the second limit rod, thus improving work efficiency.

[0028] In summary, this invention has the following beneficial effects: The limiting component is adjusted according to the length of the conveyed material. When the conveying device moves to connect with the limiting component, it continues to move until the sensing device changes. At this point, the conveying device clamps the material, i.e., the conveying device has moved to the length of the material conveying distance. After the sensing device changes, it transmits an electrical signal to the control module. The fixing device disengages from the material, and the control module controls the conveying device to move in the opposite direction. The conveying device clamps the material and returns to its initial position, i.e., the conveying device conveys the material. After the conveying device returns to its initial position, it reconnects with the limiting component and continues to move until the sensing device changes. The fixing device then fixes the workpiece again, and the stamping mechanism stamps the material. If the material is not fed to the correct position at a certain station, the sensing device will not change. If the control module does not receive an electrical signal from the sensing device within a fixed time, the conveying device will not convey the material. Simultaneously, the control module controls the stamping mechanism to stop stamping, causing the equipment to stop working immediately in the event of insufficient material feeding, reducing the possibility of loss. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a feeding anomaly sensing mechanism for a progressive die.

[0030] Figure 2 This is a front view of a feeding anomaly sensing mechanism for a progressive die.

[0031] Figure 3 This is a cross-sectional view of the base.

[0032] Figure 4 This is an exploded view of the connecting block and the base.

[0033] Figure 5 This is a schematic diagram of the control component.

[0034] Figure 6 This is a schematic diagram of the sensing device.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Workbench; 11. Slide groove; 12. Scale; 2. Fixing device; 21. Base plate; 22. Cylinder; 23. Fixing plate; 3. Limiting assembly; 31. First limiting rod; 32. Second limiting rod; 33. Fixing screw; 4. First pressure sensor; 5. Second pressure sensor; 6. Conveying device; 61. Hydraulic cylinder; 62. Guide rod; 63. Base; 631. Sliding groove; 632. Movable cavity; 633. Through hole; 64. Clamping plate; 641. Connecting block; 65. Control assembly; 651. Control rod; 652. Rotating shaft; 653. Control gear; 654. Control rack; 7. Synchronization assembly; 71. Synchronization gear; 72. Synchronization rack; 8. Sensing device; 81. Sensing light; 82. Sensing block; 83. Sensing switch; 9. Stamping mechanism. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings.

[0038] A feeding anomaly sensing mechanism for a progressive die, as described in reference Figure 1 , Figure 2 and Figure 3The system includes a fixing device 2, a conveying device 6, and a sensing device 8. The fixing device 2 is connected to a worktable 1 and is used to fix the position of the material. The conveying device 6 is connected to the worktable 1 and is used to convey the material. The worktable 1 is connected to a stamping mechanism 9. The conveying device 6, the fixing device 2, and the stamping mechanism 9 are arranged sequentially along the material conveying direction. The worktable 1 is connected to a limit component 3, which is used to limit the material conveying distance. A synchronization component 7 is provided between the sensing device 8 and the conveying device 6. The synchronization component 7 is connected to both the sensing device 8 and the conveying device 6. After the conveying device 6 is connected to the limit component 3, the sensing device 8 changes position. The fixing device 2, the conveying device 6, the sensing device 8, and the stamping mechanism 9 are all electrically connected to a control module. The control module is used to control the fixing device 2, the conveying device 6, the sensing device 8, and the stamping mechanism 9 to cooperate in processing the material.

[0039] The control module controls the fixing device 2 to fix the material and simultaneously controls the movement of the conveying device 6. After the conveying device 6 is connected to the limiting component 3, when the conveying device 6 reaches the maximum transport distance, the sensing device 8 changes. The control module then controls the fixing device 2 to move away from the material and simultaneously controls the conveying device 6 to move closer to the material and transport it. The stamping mechanism 9 stamps the material. After the conveying device 6 returns to its original position, the control module controls the fixing device 2 to fix the material again. The above steps are repeated to achieve fixed-length material transport. The sensing device 8 will only change when the expected distance is reached. If the sensing device 8 does not change, the control module controls the stamping mechanism 9 to stop stamping. In the event that the material is not fed to the correct position, the equipment will stop working immediately, reducing the possibility of loss.

[0040] Reference Figure 1 The fixing device 2 includes a base plate 21, cylinders 22, and a fixing plate 23. The base plate 21 is fixedly connected to the worktable 1. Two cylinders 22 are provided, located on opposite sides of the base plate 21, and the material passes between the two cylinders 22. The fixing plate 23 is fixedly connected to both cylinders 22 and covers the base plate 21, allowing the material to pass between the fixing plate 23 and the base plate 21. The cylinders 22 are electrically connected to the control module.

[0041] When cylinder 22 is activated, cylinder 22 moves the fixing plate 23 closer to the base plate 21, and the fixing plate 23 and the base plate 21 work together to fix the material; when cylinder 22 moves the fixing plate 23 away from the base plate 21, the fixing plate 23 separates from the material.

[0042] Reference Figure 1 The limiting components 3 are provided in two sets, with the two sets of limiting components 3 located on both sides of the material. The limiting components 3 include a first limiting rod 31, a second limiting rod 32, and a fixing screw 33. The first limiting rod 31 and the second limiting rod 32 in the same set are located on the same side of the material. The first limiting rod 31 is set close to the bottom plate 21 and is fixedly connected to the worktable 1.

[0043] Reference Figure 1 The worktable 1 has a slide groove 11, the length of which is parallel to the material conveying direction. The worktable 1 has a scale 12 near the edge of the slide groove 11, and the scale 12 is set along the length of the slide groove 11. The slide groove 11 matches the bottom end of the second limiting rod 32, the bottom end of which is located within the slide groove 11 and slidably connected to the worktable 1. A fixing screw 33 passes through the second limiting rod 32 and abuts against the worktable 1; the fixing screw 33 is threadedly connected to the second limiting rod 32.

[0044] The distance between the first limiting rod 31 and the second limiting rod 32 can be adjusted according to the expected length of the conveyed material. The conveying device 6 moves between the first limiting rod 31 and the second limiting rod 32, which limit the range of movement of the conveying device 6. When adjusting the second limiting rod 32, the fixing screw 33 is adjusted away from the worktable 1. After the second limiting rod 32 moves to a suitable position according to the scale 12, the fixing screw 33 is adjusted in the opposite direction to fix the position of the second limiting rod 32.

[0045] Reference Figure 2 A first pressure sensor 4 is fixedly connected to the side wall of the first limiting rod 31 near the second limiting rod 32, and a second pressure sensor 5 is fixedly connected to the side wall of the second limiting rod 32 near the first limiting rod 31. Both the first pressure sensor 4 and the second pressure sensor 5 are electrically connected to the control module.

[0046] When the pressure value received by the first pressure sensor 4 or the second pressure sensor 5 exceeds the preset value, the first pressure sensor 4 or the second pressure sensor 5 transmits an electrical signal to the control module.

[0047] Reference Figure 2 and Figure 3 The conveying device 6 includes a drive component, a guide rod 62, a base 63, a clamping plate 64, and a control assembly 65. To achieve the same purpose, the drive component can be a hydraulic cylinder 61, etc.; in this embodiment, a hydraulic cylinder 61 is selected. Two hydraulic cylinders 61 are provided, and both are fixedly connected to the worktable 1, located on either side of the material. The hydraulic cylinders 61 are electrically connected to the control module. The control module controls the start or stop of the hydraulic cylinders 61.

[0048] Reference Figure 2 The guide rod 62 is fixedly connected to the worktable 1. The base 63 is sleeved on the guide rod 62 and slidably connected to the guide rod 62. The base 63 is fixedly connected to both hydraulic cylinders 61. The direction in which the hydraulic cylinders 61 push the base 63 and the length direction of the guide rod 62 are both parallel to the material conveying direction.

[0049] Reference Figure 4The base 63 has two vertically and symmetrically arranged sliding grooves 631. Connecting blocks 641 are fixedly connected to both sides of the clamping plate 64 perpendicular to the material conveying direction, and the connecting blocks 641 match the sliding grooves 631. The two connecting blocks 641 correspond one-to-one with the two sliding grooves 631, and the connecting blocks 641 are disposed within the sliding grooves 631 and slidably connected to the base 63.

[0050] The sliding groove 631 restricts the movement direction of the connecting block 641. The connecting block 641 slides within the sliding groove 631, enabling the clamping plate 64 to move and clamp or detach from the material.

[0051] Reference Figure 4 and Figure 5 The base 63 has two symmetrically arranged movable cavities 632, each corresponding to one of the two sliding grooves 631, and the movable cavities 632 communicate with their corresponding sliding grooves 631. The base 63 also has through holes 633 connecting the movable cavities 632 to the outside. Two sets of control components 65 are provided, each corresponding to one of the two sets of movable cavities 632, and the control components 65 are connected to the connecting block 641. The control components 65 control the movement of the connecting block 641 within the sliding groove 631.

[0052] Reference Figure 1 , Figure 2 and Figure 5 The control assembly 65 includes a control lever 651, a rotating shaft 652, a control gear 653, and a control rack 654. The control lever 651 is vertically arranged, with one end extending into the movable cavity 632 through the through hole 633 and the other end exposed to the outside. The control lever 651 abuts against the first pressure sensor 4, bringing the fixed plate 23 closer to the base plate 21; the control lever 651 abuts against the second pressure sensor 5, moving the fixed plate 23 away from the base plate 21.

[0053] When the pressure from the control lever 651 on the first pressure sensor 4 exceeds a preset value, the first pressure sensor 4 transmits an electrical signal to the control module. The control module then transmits the electrical signal to the cylinder 22, which drives the fixing plate 23 closer to the base plate 21. When the pressure from the control lever 651 on the second pressure sensor 5 exceeds a preset value, the second pressure sensor 5 transmits an electrical signal to the control module. The control module then transmits the electrical signal to the cylinder 22, which drives the fixing plate 23 away from the base plate 21.

[0054] Reference Figure 5The rotating shaft 652, control gear 653, and control rack 654 are all located within the movable cavity 632. The rotating shaft 652 is horizontally positioned and rotatably connected to the base 63, and is fixedly connected to the control rod 651. The control gear 653 is sleeved on the rotating shaft 652 and fixedly connected to it. The control rack 654 is vertically positioned, meshes with the control gear 653, is slidably connected to the base 63, and is fixedly connected to the connecting block 641.

[0055] The control lever 651 drives the rotating shaft 652 to rotate, the rotating shaft 652 drives the control gear 653 to rotate, the control gear 653 drives the control rack 654 to rotate, the control rack 654 drives the connecting block 641 to move, and the connecting block 641 drives the clamping plate 64 to move.

[0056] Reference Figure 5 Two sets of synchronization components 7 are provided, each located within a separate movable cavity 632. Each synchronization component 7 includes a synchronization gear 71 and a synchronization rack 72. The synchronization gear 71 is sleeved on and fixedly connected to the rotating shaft 652. The synchronization rack 72 meshes with the synchronization gear 71 and is slidably connected to the base 63. Rotation of the rotating shaft 652 drives the synchronization gear 71 to rotate, which in turn drives the synchronization rack 72 to move.

[0057] Reference Figure 6 The sensing device 8 includes a sensor light 81, a sensor switch 83, and a sensor block 82. The sensor light 81 is fixedly connected to the base 63. Both the sensor switch 83 and the sensor block 82 are located within the movable cavity 632. The sensor switch 83 is fixedly connected to the base 63 and electrically connected to the sensor light 81. The sensor block 82 is fixedly connected to the synchronous rack 72. When the sensor block 82 comes into contact with the sensor switch 83, the sensor light 81 illuminates. The sensor switch 83 is electrically connected to the control module.

[0058] The synchronous rack 72 drives the sensor block 82 to move. When the sensor block 82 comes into contact with the sensor switch 83, the sensor light 81 lights up. The control module synchronizes the changes in the sensor light 81 with the changes in the control module.

[0059] The working principle of this application is as follows: when it is necessary to stamp the material, the material is passed between the clamping plate 64 and the base 63, and between the fixing plate 23 and the bottom plate 21, and the beginning of the material is positioned in a suitable position. First, start cylinder 22 and hydraulic cylinder 61. Cylinder 22 makes the fixing plate 23 cooperate with the base plate 21 to fix the material. Hydraulic cylinder 61 pushes the base 63 to move closer to the second limit rod 32 until the control rod 651 abuts against the second pressure sensor 5 on the second limit rod 32. Hydraulic cylinder 61 continues to push the base 63, and the base 63 continues to move. The second limit rod 32 limits the control rod 651, so that the control rod 651 drives the rotating shaft 652 to rotate. The rotating shaft 652 drives the control gear 653 and the synchronous gear 71 to rotate synchronously. The control gear 653 drives the control rack 654 to move. The synchronous gear 71 drives the synchronous rack 72 to move. The control rack 654 drives the connecting block 641 to slide in the sliding groove 631. The connecting block 641 drives the clamping plate 64 to approach the base 63 until the material is clamped. At this time, the value of the second pressure sensor 5 exceeds the preset value, and the base 63 stops moving.

[0060] Simultaneously, the synchronous rack 72 drives the sensing block 82 to abut against the sensing switch 83. As the base 63 stops moving, the sensing light 81 lights up. After the sensing switch 83 changes, it immediately sends an electrical signal to the control module. After receiving the electrical signal from the second pressure sensor 5, the control module transmits the electrical signal to the cylinder 22. The cylinder 22 drives the fixing plate 23 away from the base plate 21. After receiving the electrical signal from the sensing switch 83, the control module transmits the electrical signal to the hydraulic cylinder 61. The hydraulic cylinder 61 drives the base 63 to move in the opposite direction.

[0061] After the base 63 abuts against the first pressure sensor 4 on the first limit rod 31, the first limit rod 31 limits the control rod 651. The base 63 continues to move, and the control rod 651 drives the rotating shaft 652 to rotate, thereby causing the connecting block 641 to move the clamping plate 64 away from the base 63. At the same time, the synchronous rack 72 drives the sensing block 82 away from the sensing switch 83. After the sensing switch 83 changes, it immediately sends an electrical signal to the control module. The control module controls the hydraulic cylinder 61 to stop, and then moves in the opposite direction again. Meanwhile, the base 63 continues to move. The first pressure sensor 4 receives a pressure value from the control rod 651 that exceeds the preset value. The first pressure sensor 4 immediately transmits an electrical signal to the control module. After receiving the electrical signal from the first pressure sensor 4, the control module transmits the electrical signal to the cylinder 22. The cylinder 22 drives the fixing plate 23 to move closer to the base plate 21 to fix the material, reducing the possibility of displacement of the material when the base 63 moves closer to the second limit rod 32, thereby reducing the possibility of loss during stamping.

[0062] If the control module does not receive an electrical signal from any of the first pressure sensor 4, the second pressure sensor 5, and the inductive switch 83 within a fixed time, the control module controls the stamping mechanism 9 to immediately stop stamping, thereby stopping the equipment immediately in case of insufficient feeding and reducing the possibility of loss.

[0063] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A feeding anomaly sensing mechanism for a progressive die, characterized in that: The device includes a fixing device (2), a conveying device (6), and a sensing device (8). The fixing device (2) is connected to a worktable (1), and the worktable (1) is connected to a stamping mechanism (9). The conveying device (6) is connected to the worktable (1). The conveying device (6), the fixing device (2), and the stamping mechanism (9) are arranged sequentially along the material conveying direction. The worktable (1) is connected to a limiting component (3) that limits the length of material conveyed by the conveying device (6). The sensing device (8) is connected to the conveying device (6). A synchronization component (7) is provided between the sensing device (8) and the conveying device (6). The synchronization component (7) is connected to both the conveying device (6) and the sensing device (8). When the conveying device (6) is connected to the limiting component (3), the sensing device (8) changes. The stamping mechanism (9) is electrically connected to a control module. The fixing device (2), the conveying device (6), and the sensing device (8) are all electrically connected to the control module. The workbench (1) is provided with a slide groove (11), the length direction of the slide groove (11) is parallel to the material conveying direction. The limiting component (3) includes a first limiting rod (31), a second limiting rod (32) and a fixing screw (33). The first limiting rod (31) and the second limiting rod (32) are located on the same side of the material. The bottom end of the first limiting rod (31) is connected to the workbench (1), and the bottom end of the second limiting rod (32) matches the slide groove (11). The second limiting rod (32) extends into the slide groove (11) and is slidably connected to the workbench (1). The fixing screw (33) passes through the second limiting rod (32) and abuts against the workbench (1). The fixing screw (33) is threadedly connected to the second limiting rod (32). The conveying device (6) includes a drive component, a guide rod (62), a base (63), a clamping plate (64), and a control component (65). The drive component and the guide rod (62) are both connected to the worktable (1). The drive component is electrically connected to the control module. The base (63) is sleeved on the guide rod (62) and slidably connected to the guide rod (62). The base (63) is connected to the drive component. The direction in which the drive component drives the base (63) and the length direction of the guide rod (62) are both perpendicular to the material. The material conveying direction is parallel. The base (63) is provided with a sliding groove (631) for the clamping plate (64) to move closer to or away from the material. A connecting block (641) connected to the clamping plate (64) is provided in the sliding groove (631). The control component (65) is connected to the connecting block (641). After the control component (65) is connected to the first limit rod (31) or the second limit rod (32), the synchronous component (7) and the clamping plate (64) move synchronously, and the sensing device (8) changes.

2. The abnormal feeding sensing mechanism of a progressive die according to claim 1, wherein: The base (63) has a movable cavity (632) for the control component (65) to move within it. The base (63) also has a through hole (633) connecting the movable cavity (632) to the outside. The control component (65) includes a control rod (651), a rotating shaft (652), a control gear (653), and a control rack (654). One end of the control rod (651) passes through the through hole (633) and extends into the movable cavity (632). The rotating shaft (652), the control gear (653), and the control rack (654) are all located within the movable cavity (632). The rotating shaft (652) is rotatably connected to the base (63), and the rotating shaft (652) is connected to the control rod. (651) Fixed connection, the control gear (653) is sleeved on the rotating shaft (652) and fixedly connected to the rotating shaft (652), the control rack (654) is slidably connected to the base (63), the length direction of the control rack (654) is parallel to the length direction of the sliding groove (631), the control rack (654) meshes with the control gear (653), the connecting block (641) is connected to the control rack (654), the synchronization component (7) is connected to the rotating shaft (652), after the control rod (651) abuts against the first limit rod (31) or the second limit rod (32), the movement of the clamp (64) and the change of the sensing device (8) are realized.

3. The abnormal feeding sensing mechanism of a progressive die according to claim 2, wherein: The sensing device (8) includes a sensor lamp (81), a sensor switch (83), and a sensor block (82). The sensor lamp (81) is connected to the base (63). The sensor switch (83) is electrically connected to the sensor lamp (81). The sensor switch (83) and the sensor block (82) are both located in the movable cavity (632). The sensor block (82) is connected to the synchronization component (7). After the sensor block (82) is connected to the sensor switch (83), the sensor lamp (81) is turned on. The sensor switch (83) is electrically connected to the control module.

4. The feeding anomaly sensing mechanism for a progressive die according to claim 3, characterized in that: The synchronization component (7) is located in the active cavity (632). The synchronization component (7) includes a synchronization gear (71) and a synchronization rack (72). The synchronization gear (71) is sleeved on the rotating shaft (652) and fixedly connected to the rotating shaft (652). The synchronization rack (72) meshes with the base (63) and is slidably connected to the sensing block (82).

5. The feeding anomaly sensing mechanism for a progressive die according to claim 2, characterized in that: The first limiting rod (31) is connected to the first pressure sensor (4), the fixing device (2) is electrically connected to the first pressure sensor (4), the first pressure sensor (4) is electrically connected to the control module, and when the control rod (651) abuts against the first pressure sensor (4), the fixing device (2) fixes the material.

6. The feeding anomaly sensing mechanism for a progressive die according to claim 5, characterized in that: The second limiting rod (32) is connected to the second pressure sensor (5). The fixing device (2) is electrically connected to the second pressure sensor (5). The second pressure sensor (5) is electrically connected to the control module. When the control rod (651) abuts against the second pressure sensor (5), the fixing device (2) releases the fixing of the material.

7. The feeding anomaly sensing mechanism for a progressive die according to claim 6, characterized in that: The fixing device (2) includes a base plate (21), a cylinder (22) and a fixing plate (23). The base plate (21) is fixedly connected to the workbench (1). The cylinder (22) is connected to the workbench (1). The fixing plate (23) is connected to the cylinder (22) and covers the base plate (21). The material passes between the fixing plate (23) and the base plate (21). The cylinder (22) is electrically connected to the control module.

8. The feeding anomaly sensing mechanism for a progressive die according to claim 1, characterized in that: The workbench (1) has a scale (12) near the edge of the slide (11), and the scale (12) is set along the length direction of the slide (11).

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