Stamping die feeding detection mechanism

Abstract

The utility model relates to a stamping die feeding detection mechanism, include: material belt support seat for supporting and limiting the material belt of stamping, material belt support seat sets up a plurality of material belt limit piece, in place detection subassembly is used for in place detection to the material belt on material belt support seat, in place detection subassembly includes: support plate passes through fixed seat and installs in the material belt support seat's material outlet end, stroke limit base sets up on the fixed seat, stroke limit head sets up on stroke limit base, the one end of detection pin is opposite with stroke limit head, drive connecting plate passes through the rotation shaft rotation and sets up on support plate, and drive connecting plate is connected with the other end of detection pin, the jacks, set up on drive connecting plate, micro -switch sets up on support plate, and be located in the swing path of jacks. The utility model can detect the feeding of material belt to the place, has material belt feeding stroke limit function, limits the maximum feeding length of feeder, prevents the damage of mould by more feeding.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, and in particular to a stamping die feeding and detection mechanism. Background Technology

[0002] Existing continuous stamping dies feed a whole strip of material into the die for stamping, cutting the strip into the desired product shape. During in-die processing, a feeder is needed to deliver the strip into the continuous die for stamping and cutting. In actual processing, the feed distance of the strip needs to be controlled to prevent overfeeding and damage to the die. Currently, end-feeding misfeed detection devices on the market generally use spring-loaded detection pins. Using spring-loaded detection pins has two drawbacks: first, insulation needs to be considered, so the detection pin must be made of plastic, but the strength of plastic cannot limit the feeding stroke; second, the energized detection requires the entire die and equipment to be electrified, posing a significant safety hazard, and leakage could damage the equipment. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the problems of insufficient plastic strength of the detection pin of the end misfeed detection device in the prior art and the problem of the whole equipment being electrified due to the power-on detection. It provides a stamping die feeding detection mechanism that can realize the detection of the feeding position of the strip, and at the same time has the function of limiting the feeding stroke of the strip to limit the maximum feeding length of the strip and prevent excessive feeding from damaging the mold.

[0004] To solve the above-mentioned technical problems, this utility model provides a stamping die feeding and detection mechanism, comprising: A strip support base is used to support and limit the strip to be stamped; the strip support base is provided with several strip limiting components; A positioning detection component is used to detect the positioning of the material strip on the material strip support; the positioning detection component includes: The support plate is installed at the discharge end of the material belt support seat via a fixing bracket; A travel limit base is disposed on the fixed base; A travel limit head is disposed on the travel limit base; when the travel limit head contacts the material belt, the travel limit head can slide within the travel limit base; The probe pin is positioned on the same horizontal line as the travel limit head, and one end of the probe pin abuts against the travel limit head; A drive connecting plate is rotatably mounted on the support plate via a rotating shaft, and the drive connecting plate is connected to the other end of the detection pin to convert the linear displacement of the detection pin into the angular displacement of the drive connecting plate; a top rod is provided on the drive connecting plate; A micro switch is mounted on the support plate and located within the swing path of the push rod. When the push rod rotates with the drive connecting plate, the push rod triggers the micro switch, thereby outputting a feeding completion signal to the punch press.

[0005] In one embodiment of the present invention, the drive connecting plate includes a rotating connecting part and a top block, the rotating connecting part and the top block are formed together, the probe pin is threadedly connected to the rotating connecting part, and the top rod is disposed on the top block.

[0006] In one embodiment of this utility model, an arc-shaped transition connection is provided between the rotating connection part and the top block.

[0007] In one embodiment of the present invention, a movable limiting pin is further provided on the support plate, the movable limiting pin protruding from the support plate for limiting the rotation angle of the top block.

[0008] In one embodiment of this utility model, the top rod is threadedly connected to the top block.

[0009] In one embodiment of this utility model, the detection pin is threadedly connected to the rotating connection portion.

[0010] In one embodiment of this utility model, the travel limiting base is provided with a limiting through hole for the travel limiting head to move, and a reset spring is wrapped around the position where the travel limiting head extends into the limiting through hole.

[0011] In one embodiment of the present invention, one end of the travel limiting head is provided with a material belt abutment, the size of which is larger than the size of the limiting through hole.

[0012] In one embodiment of the present invention, a feeding guide seat and a discharging guide groove are arranged opposite to each other on both sides of the material belt support seat. The feeding guide seat and the material belt support seat are arranged on the same horizontal plane, and the discharging guide groove is inclinedly arranged at the discharging end of the material belt support seat.

[0013] In one embodiment of the present invention, the material strip limiting member includes a side limiting part and a top limiting part. The side limiting part is used to limit the edge of the material strip, and the top limiting part is used to limit the upper surface of the material strip.

[0014] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects: The stamping die feeding detection mechanism described in this utility model uses a purely mechanical chain transmission to complete the feeding arrival detection without the need for an air or power source. It also features a material strip feeding stroke limit function, restricting the maximum feeding length of the material strip to prevent overfeeding and damage to the die, thus eliminating safety hazards. When the material strip is fed to the set step distance, it pushes the stroke limit head, which in turn pushes the detection pin. The detection pin then drives the drive connecting plate to rotate around the rotating shaft, and the ejector rod rotates synchronously, touching a micro switch. The micro switch then activates, transmitting a signal indicating feeding completion to the stamping press via a signal line, thus realizing the stamping of the material strip. Simultaneously, the stroke limit base restricts the position of the stroke limit head, preventing the feeder from exceeding its stroke limit. Attached Figure Description

[0015] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. Figure 1 This is a schematic diagram of the structure of the stamping die feeding and detection mechanism in a preferred embodiment of this utility model; Figure 2 yes Figure 1 The diagram shows the structural schematic of the arrival detection component of the stamping die feeding detection mechanism; Figure 3 This is a schematic diagram of the drive connection plate of this utility model; Figure 4 This is a schematic diagram of the stroke limiting base of this utility model; Figure 5 This is a schematic diagram of the stroke limiting head and return spring of this utility model. Figure 6 This is a schematic diagram of the material strip limiting component of this utility model; Explanation of reference numerals in the accompanying drawings: 1. Material strip support seat; 11. Material strip limiting component; 111. Side limiting part; 112. Top limiting part; 12. Feed guide seat; 13. Discharge guide groove; 2. Support plate; 21. Fixed seat; 22. Movable limiting pin; 3. Stroke limiting base; 31. Limiting through hole; 32. Return spring; 4. Stroke limiting head; 41. Material strip abutment part; 5. Detection pin; 6. Drive connecting plate; 61. Rotating shaft; 62. Rotating connecting part; 63. Top block; 64. Arc-shaped transition connecting part; 7. Top rod; 8. Micro switch; 100. Material strip. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0017] Reference Figure 1-2 As shown, a stamping die feeding and detection mechanism of this utility model includes: a strip support 1 for supporting and limiting the strip 100 to be stamped; a plurality of strip limiting members 11 are provided on the strip support 1; and a positioning detection component for detecting the positioning of the strip on the strip support 1; the positioning detection component includes: A support plate 2 is mounted on the discharge end of the strip support seat 1 via a fixed seat 21; a stroke limiting base 3 is mounted on the fixed seat 21; a stroke limiting head 4 is mounted on the stroke limiting base 3; when the stroke limiting head 4 contacts the strip 100, the stroke limiting head 4 can slide within the stroke limiting base 3; a detection pin 5 is mounted on the same horizontal line as the stroke limiting head 4, and one end of the detection pin 5 abuts against the stroke limiting head 4; a drive connecting plate 6 is rotatably mounted on the support plate 2 via a rotating shaft 61, and the drive connecting plate 6 is connected to the other end of the detection pin 5 to convert the linear displacement of the detection pin 5 into the angular displacement of the drive connecting plate 6; a push rod 7 is mounted on the drive connecting plate 6; a micro switch 8 is mounted on the support plate 2 and located within the swing path of the push rod 7, used to detect whether the strip 100 has been fed to the correct position; when the push rod 7 rotates with the drive connecting plate 6, the push rod 7 triggers the micro switch 8, thereby outputting a feeding completion signal to the punch press.

[0018] The above structure uses a purely mechanical chain-type stroke limit head 4, detection pin 5, drive connecting plate 6, ejector rod 7 and micro switch 8. It can complete the feeding position detection at the mold discharge end without the need for an air source or power source. The structure is compact, the response is fast, and it significantly reduces the risk of misfeeding and overfeeding in high-speed punch presses, thereby improving mold life and product qualification rate.

[0019] like Figure 3 As shown, the drive connecting plate 6 includes a rotating connecting part 62 and a top block 63. The rotating connecting part 62 and the top block 63 are formed together. The probe pin 5 is threadedly connected to the rotating connecting part 62, and the push rod 7 is set on the top block 63. The drive connecting plate 6 integrally forms the rotating connecting part 62 and the top block 63, reducing the number of parts and assembly steps, eliminating hinge gaps, improving transmission accuracy and repeatability, and maintaining the trigger point unchanged even after long-term use.

[0020] An arc-shaped transition connection 64 is provided between the rotating connection 62 and the top block 63. The arc-shaped transition connection 64 smoothly transfers force flow, avoids stress concentration, and can prevent fatigue fracture under high-speed impact of 800 SPM or higher, thus extending the service life of the detection mechanism.

[0021] The support plate 2 is also provided with a movable limiting pin 22, which protrudes from the support plate 2 and is used to limit the rotation angle of the top block 63. The movable limiting pin 22 provides mechanical hard limit on both sides of the top block 63, which not only prevents over-rotation from damaging the micro switch 8, but also immediately locks the mechanism in case of abnormal feeding (excessive step distance), realizing fault self-protection and reducing the risk of mold chipping.

[0022] The ejector pin 7 is threadedly connected to the ejector block 63. The threaded connection between the ejector pin 7 and the ejector block 63 allows for quick adaptation to strips of different thicknesses or different pitches by adjusting the extension length of the ejector pin 7 on the drive connecting plate 6, without the need to replace parts, thus shortening the mold change and debugging time.

[0023] The probe pin 5 is threadedly connected to the rotating connection part 62. By rotating the probe pin 5, its extension amount can be continuously changed to achieve "zero position" fine adjustment, ensuring that different batches of molds or material strips with different timing intervals can obtain an accurate trigger point at the same assembly position, greatly shortening the mold change and debugging time, and improving the versatility and repeatability of the detection mechanism.

[0024] like Figure 4 and 5 As shown, the travel limit base 3 is provided with a limit through hole 31 for the travel limit head 4 to move. A return spring 32 is wrapped around the position where the travel limit head 4 extends into the limit through hole 31. When the travel limit head 4 can move along the axis of the limit through hole 31, the return spring 32 can absorb energy at the moment of impact and actively provide a restoring force when the material belt 100 retracts, avoiding the limit head from getting stuck or being triggered twice, and significantly improving the mechanism's response speed and signal stability.

[0025] One end of the travel limit head 4 is provided with a material belt abutment part 41, the size of which is larger than the size of the limit through hole 31. The end of the material belt abutment part 41 is cylindrical, and the end face of the cylinder abuts against the material belt, thereby limiting the position of the travel limit head 4. When the material belt abutment part 41 is in full and tight contact with the travel limit base 3, the step distance of the material belt 100 reaches the set requirement. The diameter of the material belt abutment part 41 is larger than that of the limit through hole 31, forming a self-contained mechanical stop, which can prevent the travel limit head 4 from dislodging even if the return spring 32 fails, ensuring that the mechanism is always within the safe travel range.

[0026] Feed guide seats 12 and discharge guide grooves 13 are arranged opposite each other on both sides of the strip support seat 1. The feed guide seats 12 and the strip support seat 1 are located on the same horizontal plane, and the discharge guide grooves 13 are inclined at the discharge end of the strip support seat 1. The feed guide seats 12 and the discharge guide grooves 13 form a "horizontal feeding-inclined discharging" combination, which can automatically discharge the stamped finished product, avoid the waste material rebound interfering with the detection area, and reduce the number of downtime cleanings.

[0027] like Figure 6 As shown, the material strip limiting member 11 includes a side limiting part 111 and a top limiting part 112; the side limiting part 111 is used to limit the edge of the material strip 100, and the top limiting part 112 is used to limit the upper surface of the material strip 100. The side limiting part 111 and the top limiting part 112 constitute a "side + top" bidirectional constraint to prevent the material strip from jumping up and down or deviating laterally, ensuring the accuracy of the feeding position each time, and providing stable triggering conditions for the micro switch 8.

[0028] In this embodiment, the micro switch 8 is preferably a MISUMI Z-15GD55-B, which is a micro-error detection component. When the material belt 100 is delivered to the position, the end of the material belt 100 contacts the travel limit head 4, exerting a pushing force on the travel limit head 4, allowing the travel limit head 4 to move horizontally within the limit through hole 31. When the travel limit head 4 moves, the detection pin 5 pushes the drive connecting plate 6 to rotate, thereby causing the push rod 7 to rotate. When the push rod 7 rotates and contacts the trigger switch of the micro switch 8, the micro switch 8 is triggered.

[0029] The specific working process of the stamping die feeding and detection mechanism based on the above structure is as follows: The feeder continuously feeds the strip 100. When the strip 100 contacts the travel limit head 4, the travel limit head 4 moves towards the probe pin 5 in the travel limit base 3 and pushes the drive connecting plate 6 through the probe pin 5. The drive connecting plate 6 rotates around the rotating shaft 61, causing the push rod 7 to touch the micro switch 8. The micro switch 8 is turned on, and the switch signal is sent to the punch press through the signal line. The punch press starts to press the strip 100. At the same time, since the travel limit base 3 restricts the position of the travel limit head 4, the travel limit head 4 limits the strip 100, preventing the feeder from feeding beyond the travel limit. If the feeding step of the strip 100 is insufficient, the push rod 7 will not trigger the micro switch 8, and the punch press will not perform any pressing action.

[0030] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A stamping die feeding and detection mechanism, comprising: A strip support base is used to support and limit the strip to be stamped, and a plurality of strip limiting components are provided on the strip support base; A positioning detection component is used to detect the positioning of the strip on the strip support; wherein, the positioning detection component includes: The support plate is installed at the discharge end of the material belt support seat via a fixing seat; A travel limit base is disposed on the fixed base; A travel limit head is disposed on the travel limit base; when the material belt contacts the travel limit head, the travel limit head can slide within the travel limit base under the thrust of the continuously conveying material belt; The probe pin is positioned on the same horizontal line as the travel limit head, and one end of the probe pin abuts against the travel limit head; A drive connecting plate is rotatably mounted on the support plate via a rotating shaft, and the drive connecting plate is connected to the other end of the detection pin to convert the linear displacement of the detection pin into the angular displacement of the drive connecting plate; a top rod is provided on the drive connecting plate; A micro switch is mounted on the support plate and located within the swing path of the push rod. When the push rod rotates with the drive connecting plate, the push rod triggers the micro switch, thereby outputting a feeding completion signal to the punch press.

2. The stamping die feeding and detection mechanism according to claim 1, characterized in that: The drive connecting plate includes a rotating connecting part and a top block. The rotating connecting part and the top block are formed together. The probe pin is threadedly connected to the rotating connecting part. The top rod is disposed on the top block.

3. The stamping die feeding and detection mechanism according to claim 2, characterized in that: An arc-shaped transition connection is provided between the rotating connection part and the top block.

4. The stamping die feeding and detection mechanism according to claim 3, characterized in that: The support plate is also provided with a movable limiting pin, which protrudes from the support plate to limit the rotation angle of the top block.

5. The stamping die feeding and detection mechanism according to claim 2, characterized in that: The top rod is threadedly connected to the top block.

6. The stamping die feeding and detection mechanism according to claim 2, characterized in that: The probe pin is threadedly connected to the rotating connection part.

7. The stamping die feeding and detection mechanism according to claim 1, characterized in that: The travel limit base is provided with a limit through hole for the travel limit head to move, and a reset spring is wrapped around the position where the travel limit head extends into the limit through hole.

8. The stamping die feeding and detection mechanism according to claim 7, characterized in that: One end of the travel limiting head is provided with a material belt abutment, the size of which is larger than the size of the limiting through hole.

9. The stamping die feeding and detection mechanism according to claim 1, characterized in that: The feed guide seat and the discharge guide groove are arranged opposite to each other on both sides of the feed belt support seat. The feed guide seat and the feed belt support seat are arranged on the same horizontal plane, and the discharge guide groove is inclinedly arranged at the discharge end of the feed belt support seat.

10. The stamping die feeding and detection mechanism according to claim 1, characterized in that: The material strip limiting component includes a side limiting part and a top limiting part. The side limiting part is used to limit the edge of the material strip, and the top limiting part is used to limit the upper surface of the material strip.

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