Punching device

Abstract

The invention discloses a stamping device which comprises a rack, and a power mechanism, a stamping mechanism and a feeding mechanism are arranged on the rack. The stamping mechanism comprises a stamping die and a stamping driving device; the feeding mechanism comprises a first clamping plate, a second clamping plate, a first clamping block, a second clamping block and a feeding driving device. And the power mechanism is in transmission connection with the stamping and feeding driving device. A gap for containing a material belt is formed between the two clamping plates, one end is a feeding port, the other end is a discharging port, and the width of the clamping plates is smaller than that of the material belt. The feeding driving device comprises a first driving mechanism and a second driving mechanism, and the first driving mechanism drives the first clamping block to be close to or away from the second clamping block; the second driving mechanism drives the two clamping blocks to synchronously reciprocate in the first axial direction. According to the stamping device, feeding and stamping actions are carried out in a coordinated mode, and the pause and adjustment time is shortened; meanwhile, the surface damage risk of the material belt is reduced, the adaptability to the width and thickness changes of the material belt is high, and the device can be compatible with material belts of various specifications without frequently replacing clamping components.

Description

Technical Field

[0001] The present invention relates to the technical field of terminal processing equipment, and in particular to a stamping device. Background Art

[0002] Stamping equipment is widely used in the metalworking industry, primarily for stamping and forming metal strips (such as terminal strips) or other materials to produce parts that meet specific shapes and sizes. Traditional stamping equipment typically includes a power mechanism, a stamping mechanism, and a feed mechanism. The stamping mechanism uses a stamping die and a drive mechanism to stamp the material, while the feed mechanism is responsible for accurately transporting the material to the processing position of the stamping die.

[0003] In existing stamping devices, the design of the feed mechanism directly impacts the material delivery accuracy and processing efficiency. Traditional feed mechanisms often employ roller-type or simple clamping structures, feeding the material into the stamping die through the rolling of rollers or the unidirectional movement of the clamping mechanism. However, these feed mechanisms have several shortcomings in practical applications. For example, roller-type feed mechanisms are prone to slippage due to uneven material surfaces or uneven material thickness, thus affecting feeding accuracy. Simple clamping feed mechanisms often struggle to accommodate material of varying widths or thicknesses, and can easily deform or damage the material during the clamping and releasing process. Summary of the Invention

[0004] The purpose of the present invention is to solve the above technical problems and provide a stamping device that can adapt to material strips of different specifications, ensure the stability of the material strips during transportation, and accurately dock with the stamping die.

[0005] In order to achieve the above-mentioned object, the present invention provides a stamping device, which includes a frame, on which a power mechanism, a stamping mechanism and a feeding mechanism are provided; the stamping mechanism includes a stamping die and a stamping drive device connected to a movable die in the stamping die; The feeding mechanism includes a pair of first and second clamping plates that are oppositely arranged and extend along a first axial direction, a first clamping block and a second clamping block that are respectively located on one side of the first and second clamping plates and oppositely arranged, and a feeding drive device; The power mechanism is in transmission connection with the punching drive device and the feeding drive device; A receiving gap is defined between the first clamping plate and the second clamping plate for receiving a material strip to be conveyed. One end of the first clamping plate and the second clamping plate comprises a feed port for receiving the material strip into the receiving gap, and the other end comprises a discharge port. The width of the first clamping plate and the second clamping plate is smaller than that of the material strip, so that at least one side of the material strip extends out of the receiving gap. The discharge port is connected to the feed port of the stamping die. The feeding drive device includes a first driving mechanism and a second driving mechanism; The first driving mechanism is connected to the first clamping block, and is used to drive the first clamping block to move closer to or away from the second clamping block, so as to clamp the edge of the material strip extending from the accommodating gap between the first clamping block and the second clamping block, or to release the clamping of the material strip; The second driving mechanism is used to drive the first clamping block and the second clamping block to synchronously reciprocate along the first axial direction.

[0006] Preferably, the feeding device also includes a supporting frame and a third clamping block, and the feeding drive device also includes a third driving mechanism, the two ends of the second clamping plate are arranged on the supporting frame, the first clamping plate is arranged above the second clamping plate, and the third clamping block is arranged on one end of the supporting frame close to the discharge port, and the third driving mechanism is connected to the third clamping block, and the third driving mechanism is used to drive the third clamping block close to or away from the supporting frame to clamp the edge of the material strip extending from the accommodating gap between the third clamping block and the support frame, or release the clamping of the material strip; and when the first clamping block is in a clamping state, the third clamping block is in a loose state; when the first clamping block is in a loose state, the third clamping block is in a clamping state.

[0007] Preferably, the first clamping block and the third clamping block are provided with avoidance grooves adapted to the first clamping plate, so that the first clamping block and the third clamping block span the first clamping plate; the second clamping block is provided with a groove, a part of the second clamping plate located between the two ends is embedded in the groove, and the second clamping block can slide along the second clamping plate.

[0008] Preferably, it also includes a support frame, the two ends of the second splint are arranged on the support frame, the first splint is arranged above the first splint, and a fixed mounting plate is respectively provided on one end of the support frame close to the feed port and the discharge port, and the two ends of the first splint are respectively connected to the two fixed mounting plates.

[0009] Preferably, the first driving mechanism includes a first support shaft and a first bearing sleeved on the first support shaft, the first bearing is connected to the second clamping block, the upper end of the first support shaft passes through the second clamping block and is connected to the first clamping block, and the lower end of the first support shaft abuts against the first lifting plate; The third driving mechanism includes a second support shaft and a second bearing sleeved on the second support shaft, the second bearing is connected to the support frame, the upper end of the second support shaft passes through the support frame and is connected to the third clamping block, and the lower end of the second bearing shaft abuts against the second lifting plate.

[0010] Preferably, it further comprises a rotating shaft for transmission connection with the driving motor, wherein the rotating shaft is eccentrically provided with a first roller and a second roller; The first lifting plate is in rolling connection with the outer wall of the first roller, and the second lifting plate is in rolling connection with the outer wall of the second roller. When the rotating shaft rotates, the first lifting plate and the second lifting plate are alternately raised and lowered.

[0011] Preferably, the second driving mechanism includes a rotating wheel and a crank, the rotating wheel is connected to the rotating shaft through a transmission wheel mechanism, so that the rotating shaft can drive the rotating wheel to rotate, one end of the crank is pivotally connected to the second clamping block, and the other end of the crank is connected to a position point on the rotating wheel that deviates from the rotation center.

[0012] Preferably, the rotating wheel is further provided with a linear groove extending in its radial direction, a connecting block is provided in the linear groove, the position of the connecting block in the linear groove is adjustable, and one end of the crank is connected to the connecting block.

[0013] Preferably, the support frame includes a loading end close to the feed port and a feeding end close to the discharge port, the rotating wheel is located below the loading end, and the loading end is also provided with an auxiliary loading plate docked with the feed port, and the auxiliary loading end is provided with a guide groove directly opposite to the feed port, and the guide groove is used to place the material belt and guide the material belt into the feed port.

[0014] Preferably, the loading end of the support frame has a notch connected to the rotating wheel below, the inner end of the auxiliary loading plate close to the feed port is located in the notch, and the inner end is pivotally connected to the support frame, so that the auxiliary loading plate can flip relative to the support frame, and the auxiliary loading plate has a first state and a second state; a supporting portion is also provided in the notch on the support frame, and when the auxiliary loading plate is in the first state, the supporting portion abuts against the bottom wall of the auxiliary loading plate, so that the guide groove is opposite to the feed port; when the auxiliary loading plate is in the second state, the notch is exposed.

[0015] Compared with the prior art, the stamping device provided by the above technical solution has a transmission connection between the power mechanism and the stamping drive device and the feeding drive device, so that the feeding and stamping actions can be coordinated, reducing the pause and adjustment time. The feeding mechanism uses a pair of oppositely arranged first clamping plates and second clamping plates to form a receiving gap, and combines the first clamping block and the second clamping block. The first driving mechanism drives the first clamping block to move closer to or away from the second clamping block to achieve precise clamping and release of the edge of the material strip. First, the clamping block only acts on the edge of the material strip, avoiding direct contact and extrusion of the main body of the material strip, effectively reducing the risk of damage to the surface of the material strip, and is particularly suitable for precision terminal material strips or materials with high surface requirements, ensuring the quality of subsequent stamping processing. Secondly, this clamping method has strong adaptability to changes in the width and thickness of the material strip, and is compatible with material strips of various specifications without the need for frequent replacement of clamping components, thereby improving the versatility and production efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the punching device in an embodiment of the present invention.

[0017] Figure 2 for Figure 1 side view.

[0018] Figure 3 It is a three-dimensional structural diagram of the feeding mechanism in an embodiment of the present invention.

[0019] Figure 4 for Figure 3 Top view of .

[0020] Figure 5 This is a diagram of the feeding mechanism in use in an embodiment of the present invention.

[0021] Figure 6 for Figure 5 Installation structure diagram of the middle part of the mechanism.

[0022] Figure 7 for Figure 6 side view.

[0023] Figure 8 3D is a three-dimensional structural diagram of a rotating wheel in an embodiment of the present invention.

[0024] Figure 9 3D diagram of the first clamping block and the second clamping block in an embodiment of the present invention.

[0025] Figure 10 2 is a three-dimensional structural diagram of a fixed mounting plate in an embodiment of the present invention.

[0026] Figure 11 3D is a perspective view of a driving mechanism in an embodiment of the present invention.

[0027] Figure 12 for Figure 11 Top view of .

[0028] Figure 13 This is a three-dimensional view of the auxiliary loading plate of the feeding mechanism in the embodiment of the present invention in the flipped-up state. DETAILED DESCRIPTION

[0029] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the embodiments and the accompanying drawings.

[0030] The invention discloses a punching device for punching strip materials, including but not limited to terminal strips.

[0031] like Figure 1 and Figure 2 The stamping device includes a frame 2, on which a power mechanism, a stamping mechanism and a feeding mechanism 1 are provided.

[0032] The stamping mechanism includes a stamping die 30 and a stamping drive device connected to a movable die in the stamping die 30 .

[0033] The feeding mechanism 1 includes a feeding drive device.

[0034] The power mechanism is in transmission connection with the punching drive device and the feeding drive device.

[0035] In this embodiment, the stamping drive device includes two rotating sleeves 31 mounted on a first rotating shaft 40. Both rotating sleeves 31 are connected to the movable die of the stamping die 30. The two rotating sleeves 31 are eccentrically positioned relative to the first rotating shaft 40, so that rotation of the first rotating shaft 40 drives the two rotating sleeves 31 to reciprocate up and down, thereby driving the movable die to move toward or away from the stationary die. Furthermore, a drive motor 41 is provided on the frame 2 and is drivingly connected to the first rotating shaft 40.

[0036] At the same time, the first rotating shaft 40 is also connected to the feeding drive device through the transmission belt 41 to drive the feeding mechanism 1 to move.

[0037] like Figures 3 to 6 The feeding mechanism 1 includes a pair of first and second clamping plates 100 and 101 that are oppositely arranged and extend along the first axial direction F, and a first clamping block 11 and a second clamping block 12 that are respectively located on one side of the first and second clamping plates 100 and 101 and are oppositely arranged.

[0038] There is a receiving gap between the first clamp 100 and the second clamp 101 for receiving the material strip P to be conveyed. One end of the first clamp 100 and the second clamp 101 has a feed port 102 for receiving the material strip P into the receiving gap, and the other end has a discharge port 103. The width of the first clamp 100 and the second clamp 101 is smaller than the material strip P, so that at least one side of the material strip P extends out of the receiving gap, and the discharge port 103 is connected to the feed port of the stamping die 30.

[0039] The feeding drive device includes a first drive mechanism and a second drive mechanism.

[0040] The first driving mechanism is connected to the first clamping block 11, and the first driving mechanism is used to drive the first clamping block 11 to move closer to or away from the second clamping block 12, so as to clamp the edge of the material strip P extending from the accommodating gap between the first clamping block 11 and the second clamping block 12, or to release the clamping of the material strip P.

[0041] The second driving mechanism is used to drive the first clamping block 11 and the second clamping block 12 to reciprocate synchronously along the first axial direction F.

[0042] For the above-mentioned feeding mechanism 1, its working principle is: First, the material strip P enters the receiving gap between the two clamping plates (the first clamping plate 100 and the second clamping plate 101) from the material inlet 102. Because the width of the clamping plates is smaller than that of the material strip P, at least one side of the edge of the material strip P is exposed outside the clamping plates and is located in the clamping area between the first clamping block 11 and the second clamping block 12. Then, the first driving mechanism drives the first clamping block 11 to approach the second clamping block 12, thereby clamping the edge of the material strip P and forming a driving force transmission surface; Then, the second driving mechanism drives the first clamping block 11 and the first clamping block 11 to move synchronously along the first axial direction F (i.e., the conveying direction of the material strip P) to drive the material strip P to move toward the discharge port 103; When the first clamping block 11 and the first clamping block 11 move to the limit position, the first driving mechanism drives the first clamping block 11 away from the second clamping block 12, thereby releasing the clamping of the material strip P; Then, the second driving mechanism drives the first clamping block 11 and the second clamping block 12 to move in the opposite direction to return to the starting point and prepare for secondary conveying; In this way, through the clamping and intermittent movement of the first clamping block 11 and the second clamping block 12 (the rhythm is: clamping-moving-releasing-returning), the material strip P is conveyed step by step toward the discharge port 103, and the material strip P is sent into the stamping die 30 from the discharge port 103.

[0043] For the punching device provided in this embodiment, the power mechanism is connected with the punching drive device and the feeding drive device in a transmission manner, so that the feeding and punching actions can be coordinated, reducing pauses and adjustment time.

[0044] In the feeding mechanism 1, a pair of first clamping plate 100 and second clamping plate 101 are arranged oppositely to form a containing gap, and combined with the first clamping block 11 and the second clamping block 12, the first clamping block 11 is driven by the first driving mechanism to approach or move away from the second clamping block 12, so as to realize the precise clamping and releasing of the edge of the material strip P.

[0045] For this feeding mechanism 1, first of all, the clamping block only acts on the edge of the material strip P, avoiding direct contact and extrusion on the main body of the material strip P, effectively reducing the risk of damage to the surface of the material strip P, especially suitable for precise terminal material strip P or materials with high surface requirements, ensuring the quality of subsequent stamping processing.

[0046] Secondly, it has strong adaptability to the width and thickness changes of the material strip P, and can be compatible with various specifications of the material strip P without frequent replacement of the clamping parts, improving the universality and production efficiency of the device.

[0047] In addition, the clamping surfaces of the first clamping block 11 and the second clamping block 12 can be provided with specific textures or shapes to increase friction or adapt to the clamping of special-shaped material strips P. The feeding port 102 and the discharging port 103 can be equipped with guiding devices such as guide grooves 170 to further optimize the introduction and discharge of the material strip P.

[0048] On the other hand, as Figures 5 to 7 , the feeding mechanism 1 also includes a support frame 13, a third clamping block 14 and a third driving mechanism, both ends of the second clamping plate 101 are arranged on the support frame 13, and the first clamping plate 100 is arranged above the second clamping plate 101.

[0049] The third clamping block 14 is arranged on one end of the support frame 13 close to the discharging port 103, and the third driving mechanism is connected with the third clamping block 14. The third driving mechanism is used to drive the third clamping block 14 to approach or move away from the support frame 13, so as to clamp the edge of the material strip P extending from the containing gap between the third clamping block 14 and the support frame 13, or release the clamping of the material strip P. And when the first clamping block 11 is in the clamping state, the third clamping block 14 is in the releasing state. When the first clamping block 11 is in the releasing state, the third clamping block 14 is in the clamping state.

[0050] The feeding mechanism 1 in this embodiment has an alternating working mode including two sets of clamping mechanisms, aiming to solve the problem of back-off and position deviation in the feeding process, and improve the continuity and accuracy of feeding.

[0051] The feeding mechanism 1 is based on the cooperative and alternating work of the two sets of clamping mechanisms. The first clamping block 11 and the second clamping block 12 constitute the first clamping mechanism, and its working principle is described in detail in the above example. On this basis, the third clamping block 14 and the third driving mechanism constitute the third clamping mechanism.

[0052] When the first clamping block 11 is in a clamped state, the third clamping block 14 is in a loosened state. The first clamping mechanism then drives the web P forward. When the first clamping block 11 is loosened, the third clamping block 14 immediately clamps the web P, preventing it from retreating, while the first clamping mechanism simultaneously retracts. This alternating clamping ensures that the web P is securely held by one set of clamping mechanisms throughout the entire feeding cycle, enabling continuous, retraction-free, and precise feeding.

[0053] On the other hand, Figure 9 The first clamping block 11 and the third clamping block 14 are provided with an avoidance groove C1 adapted to the first clamping plate 100, so that the first clamping block 11 and the third clamping block 14 straddle the first clamping plate 100. The second clamping block 12 is provided with a groove C2, and a portion of the second clamping plate 101 located between the two ends is embedded in the groove C2, and the second clamping block 12 can slide along the second clamping plate 101.

[0054] In this embodiment, the avoidance grooves C1 provided on the first clamping block 11 and the third clamping block 14 are shaped and sized to match the first clamping plate 100, allowing the first clamping block 11 and the third clamping block 14 to "straddle" or "ride" the first clamping plate 100. This ensures that the first clamping block 11 and the third clamping block 14 avoid interference with the first clamping plate 100 during the clamping operation, while also providing additional lateral support for the first clamping block 11 and the third clamping block 14, thereby improving their movement stability.

[0055] The groove C2 provided on the second clamping block 12 is used to fit a portion of the second clamping plate 101, allowing the second clamping block 12 to slide smoothly along the second clamping plate 101. The close fit between the groove C2 and the second clamping plate 101 provides precise guidance while limiting the lateral freedom of the second clamping block 12, ensuring that it always maintains the correct motion trajectory during the feeding process.

[0056] On the other hand, Figure 5 A fixed mounting plate 15 is provided on one end of the support frame 13 close to the feed port 102 and the discharge port 103 , and both ends of the first clamping plate 100 are connected to the two fixed mounting plates 15 .

[0057] In this embodiment, the two fixed mounting plates 15 are provided to secure the ends of the first clamping plate 100. Thus, by controlling the position of the first clamping plate 100 on the fixed mounting plates 15, the gap between the first clamping plate 100 and the second clamping plate 101 can be controlled to fit the material strip P. Specifically, the fixed mounting plates 15 have slots 150, and the two ends of the first clamping plate 100 are respectively engaged with the two fixed mounting plates 15.

[0058] On the other hand, Figure 6 and Figure 7 The first driving mechanism comprises a first supporting shaft 110 and a first bearing 111 sleeved on the first supporting shaft 110, the first bearing 111 is connected with the second clamping block 12, the upper end of the first supporting shaft 110 is connected with the first clamping block 11 through the second clamping block 12, and the lower end of the first supporting shaft 110 abuts against the first lifting plate 112.

[0059] The third driving mechanism comprises a second supporting shaft 140 and a second bearing 141 sleeved on the second supporting shaft 140, the second bearing 141 is connected with the supporting frame 13, the upper end of the second supporting shaft 140 is connected with the third clamping block 14 through the supporting frame 13, and the lower end of the second bearing 141 abuts against the second lifting plate 142.

[0060] For the first driving mechanism in the embodiment, the vertical movement of the first supporting shaft 110 can directly drive the first clamping block 11 to move close to or away from the second clamping block 12. The lower end of the first supporting shaft 110 abuts against the first lifting plate 112, that is, the lifting movement of the first lifting plate 112 will directly drive the vertical displacement of the first supporting shaft 110, so as to control the clamping and loosening of the first clamping block 11.

[0061] Similarly, for the third driving mechanism, the lower end of the second supporting shaft 140 abuts against the second lifting plate 142. Through the lifting of the second lifting plate 142, the vertical movement of the second supporting shaft 140 is driven, and then the clamping and loosening of the third clamping block 14 relative to the supporting frame 13 are controlled.

[0062] The embodiment utilizes the linear reciprocating movement of the supporting shaft, provides support and guidance through the bearing, ensures the stability and accuracy of the vertical movement of the clamping blocks (the first clamping block 11 and the third clamping block 14), reduces the transmission links, and improves the response speed and transmission efficiency.

[0063] In addition, the lower end of the first supporting shaft 110 is rollingly connected with the first lifting plate 112 through the first roller 113. When the second driving mechanism drives the second clamping block 12 to move along the first axial direction F, the first roller 113 will roll on the surface of the first lifting plate 112, thereby effectively reducing the friction between the first supporting shaft 110 and the first lifting plate 112 and saving energy consumption. At the same time, the rolling contact also avoids the jamming and shaking that may be caused by sliding friction, and ensures that the horizontal movement of the first supporting shaft 110 is smoother and more accurate.

[0064] In another aspect, please refer to Figure 6 , Figure 7 , and Figure 11 and Figure 12The feeding mechanism 1 further includes a second rotating shaft 160 for transmission connection with the driving motor 41 , and a first roller 161 and a second roller 162 are eccentrically arranged on the second rotating shaft 160 .

[0065] The first lifting plate 112 is in rolling connection with the outer wall of the first roller 161 , and the second lifting plate 142 is in rolling connection with the outer wall of the second roller 162 . When the second rotating shaft 160 rotates, the first lifting plate 112 and the second lifting plate 142 are alternately raised and lowered.

[0066] Specifically, if Figure 6 The first lifting plate 112 is mounted with a second roller 114, and the second lifting plate 142 is mounted with a third roller 143, so as to achieve rolling connection between the outer wall surfaces of the first lifting plate 112 and the first roller 161, and between the second lifting plate 142 and the second roller 162. This rolling connection effectively prevents the first lifting plate 112 and the second lifting plate 142 from obstructing the rotation of the first roller 161 and the second roller 162.

[0067] In this embodiment, the feed mechanism 1 converts rotational motion into linear reciprocating motion based on eccentric rotation. Specifically, a second rotating shaft 160 is provided, which is in transmission connection with the drive motor 41. This second rotating shaft 160 has eccentric first and second rollers 161 and 162. "Eccentric" here means that the rotation centers of the first and second rollers 161 and 162 do not coincide with the rotation center of the second rotating shaft 160.

[0068] When the drive motor 41 rotates the second rotating shaft 160, the eccentric arrangement of the first roller 161 and the second roller 162 causes them to periodically change the distance between their rotation centers and the contact points of the first and second lifting plates 112, 142. This distance change is converted into vertical reciprocating motion of the first and second lifting plates 112, 142 through the rolling connection.

[0069] Because the first roller 161 and the second roller 162 are eccentrically positioned with different eccentricities, the first and second lifting plates 112 and 142 can precisely alternately rise and fall as the second rotating shaft 160 rotates. For example, when the eccentric point of the first roller 161 is at its highest point, the first lifting plate 112 rises to its highest point, while the eccentric point of the second roller 162 is at its lowest point, causing the second lifting plate 142 to reach its lowest point. As the second rotating shaft 160 continues to rotate, the relative positions of the two rollers change, resulting in the alternating rise and fall of the two lifting plates. This, in turn, drives the alternating clamping and release of the two clamping mechanisms, ensuring continuous feeding of the material strip P.

[0070] On the other hand, the first roller body 161 and the second roller body 162 are arranged in a machine box 163, and the two sides of the first lifting plate 112 and the second lifting plate 142 are respectively connected with the side walls of the machine box 163 through a guide structure, which comprises a guide shaft and a guide hole matched with the guide shaft.

[0071] Specifically, the guide hole is arranged on the side wall of the machine box 163, and the guide shaft is arranged on the corresponding lifting plate (the first lifting plate 112 and the second lifting plate 142). When the lifting plate vertically reciprocates under the action of the roller body (the first roller body 161 and the second roller body 162), the guide shaft slides up and down in the guide hole, thereby accurately limiting the movement track of the lifting plate, ensuring that the lifting plate always vertically moves along the preset straight line path, greatly improving the stability and straightness of the movement of the lifting plate, thereby ensuring the accurate clamping and loosening actions of the clamping block (the first clamping block 11 and the third clamping block 14), and further improving the accuracy and reliability of the whole feeding mechanism 1.

[0072] On the other hand, as Figures 6 to 8 The second driving mechanism comprises a rotating wheel 120 and a crank 121. The rotating wheel 120 is in transmission connection with the second rotating shaft 160 through a transmission wheel mechanism, so that the second rotating shaft 160 can drive the rotating wheel to rotate. One end of the crank 121 is pivotally connected with the second clamping block 12, and the other end of the crank 121 is connected with a position point on the rotating wheel 120 deviating from the rotation center.

[0073] The embodiment converts the rotary motion into linear reciprocating motion based on the crank 121 connecting rod mechanism. Specifically, one end of the crank 121 is pivotally connected with the second clamping block 12, that is, the crank 121 can freely rotate around this connection point, and at the same time, the force is transmitted to the second clamping block 12. The other end of the crank 121 is connected with a position point on the rotating wheel 120 deviating from the rotation center. When the rotating wheel 120 rotates around the center, since the other end of the crank 121 is connected to the eccentric point, the crank 121 will be periodically pushed and pulled. The pushing and pulling action is transmitted to the second clamping block 12 through the crank 121, forcing the second clamping block 12 to reciprocate along the first axial direction F.

[0074] Since the first clamping block 11 and the second clamping block 12 are arranged oppositely and cooperatively clamp the edge of the material belt P, the reciprocating motion of the second clamping block 12 will drive the first clamping block 11 and the clamped material belt P to synchronously reciprocate along the first axial direction F, thereby realizing the accurate feeding of the material belt P. The crank 121 connecting rod mechanism has simple structure and high reliability, and can efficiently convert the rotary motion into accurate linear reciprocating motion.

[0075] In addition, as Figure 3The support frame 13 is further provided with a guide rod 134, and the second clamping block 12 is passed through the guide rod 134. When the second clamping block 12 is subjected to the push and pull force of the crank 121, it reciprocates along the guide rod 134, thereby further ensuring that the second clamping block 12 moves linearly along a fixed route, preventing the material strip P from deflecting during the conveying process.

[0076] The transmission wheel mechanism can adopt various forms, such as precision gear transmission (such as synchronous belt transmission, sprocket transmission) or friction wheel transmission, to adapt to different transmission ratios, torque and noise requirements. Figure 7 The transmission wheel mechanism includes a first wheel 164 and a second wheel 165. The first wheel 164 is connected to the rotating shaft 160, and the second wheel 165 is connected to the rotating wheel 120. The first wheel 164 and the second wheel 165 are meshed. The rotation of the rotating shaft 160 drives the first wheel 164 to rotate, thereby driving the second wheel 165 meshed with the first wheel 164 to rotate, and then the rotating wheel 120 is driven by the second wheel 165.

[0077] On the other hand, Figure 8 The rotating wheel is also provided with a linear groove 122 extending in its radial direction. A connecting block 123 is provided in the linear groove 122 . The position of the connecting block 123 in the linear groove 122 is adjustable. One end of the crank 121 is connected to the connecting block 123 .

[0078] As the connecting block 123 moves within the linear slot 122, the "effective eccentricity" (i.e., the distance from the connection point to the rotational center of the rotating wheel 120) between the crank 121 and the rotating wheel 120 also changes. When the connecting block 123 moves away from the center of the rotating wheel 120, the effective eccentricity increases, thereby increasing the reciprocating stroke of the second clamping block 12 driven by the crank 121. Conversely, when the connecting block 123 moves closer to the center of the rotating wheel 120, the effective eccentricity decreases, and the feeding stroke also decreases. By adjusting the position of the connecting block 123 within the linear slot 122, the effective radius of the crank 121 can be precisely varied, thereby achieving stepless or graded adjustment of the reciprocating feeding stroke of the second clamping block 12. This design greatly enhances the flexibility of the feeding mechanism 1 and its adaptability to varying feeding lengths.

[0079] The connecting block 123 can adopt a variety of locking mechanisms, such as bolt locking and quick clamping mechanism, to ensure that the adjusted position is stable and reliable and prevent displacement during high-speed operation.

[0080] On the other hand, Figure 3The supporting frame 13 includes a loading end 130 close to the feed port 102 and a feeding end 131 close to the discharge port 103. The rotating wheel is located below the loading end 130. The loading end 130 is also provided with an auxiliary loading plate 17 docked with the feed port 102. The auxiliary loading end 130 is provided with a guide groove 170 that is directly opposite to the feed port 102. The guide groove 170 is used to place the material strip P and guide the material strip P into the feed port 102.

[0081] The auxiliary loading plate 17 provides a stable platform for the material strip P to enter. A guide groove 170 is positioned above the auxiliary loading plate 17, facing the feed port 102 (i.e., the feed port 102). The guide groove 170 precisely accommodates the material strip P and guides it smoothly along a predetermined path into the feed port 102.

[0082] Based on the auxiliary loading plate 17 and the guide groove 170, the loading process of the material strip P is greatly simplified, the difficulty of manual alignment is reduced, the efficiency and accuracy of loading are improved, and the risk of bending or damage of the material strip P during the loading process is also reduced.

[0083] During the loading process of the material strip P, it is sometimes necessary to adjust the position of the connecting block 123 on the rotating wheel 120 or to inspect, maintain, or clean the components thereunder, and the presence of the auxiliary loading plate 17 may hinder the operation.

[0084] To this end, further improvements are made: Figure 13 The loading end 130 of the support frame 13 has a notch 132 connected to the rotating wheel below. The inner end of the auxiliary loading plate 17 close to the feed port 102 is located in the notch 132, and the inner end is pivotally connected to the support frame 13, so that the auxiliary loading plate 17 can flip relative to the support frame 13, and the auxiliary loading plate 17 has a first state and a second state; a supporting portion 133 is also provided in the notch 132 on the support frame 13. When the auxiliary loading plate 17 is in the first state, the supporting portion 133 abuts against the bottom wall of the auxiliary loading plate 17, so that the guide groove 170 is opposite to the feed port 102; when the auxiliary loading plate 17 is in the second state, the notch 132 is exposed.

[0085] In this embodiment, the auxiliary loading plate 17 has two working states: a first state and a second state.

[0086] In the first state, the auxiliary loading plate 17 is in a horizontal position, and its bottom wall abuts against the supporting portion 133 on the support frame 13. The supporting portion 133 supports the auxiliary loading plate 17 and ensures that the guide groove 170 on the auxiliary loading plate 17 is accurately aligned with the feed port 102, facilitating the introduction of the material strip P.

[0087] In the second state, the auxiliary feeding plate 17 is flipped upward, so that the notch 132 is exposed. At this time, the operator can conveniently adjust, check, maintain or clean the lower rotating wheel 120 or other components through the notch 132 without disassembling the entire auxiliary feeding plate 17. This flip design greatly improves the maintainability and operation convenience of the device, while not affecting its normal feeding function.

[0088] The implementation mode of the pivotal connection of the auxiliary feeding plate 17 and the support frame 13 can adopt a pin shaft, a hinge or a universal joint to adapt to different flip angles and bearing requirements. A damping mechanism or a positioning pin can be arranged at the pivotal connection to ensure the stable locking of the auxiliary feeding plate 17 in the first state and the second state.

[0089] The above only discloses the preferred embodiments of the present application, of course, cannot limit the scope of the present application, therefore, the equivalent changes made in the patent range of the present application still belong to the scope covered by the present application.

Claims

1. A punching device, characterized in that: The machine comprises a frame on which a power mechanism, a stamping mechanism and a feeding mechanism are arranged; the stamping mechanism comprises a stamping die and a stamping drive device connected to a movable die in the stamping die; The feeding mechanism includes a pair of first and second clamping plates that are oppositely arranged and extend along a first axial direction, a first clamping block and a second clamping block that are respectively located on one side of the first and second clamping plates and oppositely arranged, and a feeding drive device; The power mechanism is in transmission connection with the punching drive device and the feeding drive device; A receiving gap is defined between the first clamping plate and the second clamping plate for receiving a material strip to be conveyed. One end of the first clamping plate and the second clamping plate comprises a feed port for receiving the material strip into the receiving gap, and the other end comprises a discharge port. The width of the first clamping plate and the second clamping plate is smaller than that of the material strip, so that at least one side of the material strip extends out of the receiving gap. The discharge port is connected to the feed port of the stamping die. The feeding drive device includes a first driving mechanism and a second driving mechanism; The first driving mechanism is connected to the first clamping block, and is used to drive the first clamping block to move closer to or away from the second clamping block, so as to clamp the edge of the material strip extending from the accommodating gap between the first clamping block and the second clamping block, or to release the clamping of the material strip; The second driving mechanism is used to drive the first clamping block and the second clamping block to synchronously reciprocate along the first axial direction.

2. The punching device according to claim 1, characterized in that The feeding device further includes a supporting frame and a third clamping block, and the feeding drive device further includes a third driving mechanism, wherein both ends of the second clamping plate are arranged on the supporting frame, the first clamping plate is arranged above the second clamping plate, and the third clamping block is arranged on one end of the supporting frame close to the discharge port, and the third driving mechanism is connected to the third clamping block, and the third driving mechanism is used to drive the third clamping block to move closer to or away from the supporting frame, so as to clamp the edge of the material strip extending from the accommodating gap between the third clamping block and the supporting frame, or release the clamping of the material strip; Moreover, when the first clamping block is in a clamping state, the third clamping block is in a loosening state; when the first clamping block is in a loosening state, the third clamping block is in a clamping state.

3. The punching device according to claim 2, characterized in that The first clamping block and the third clamping block are provided with avoidance grooves adapted to the first clamping plate, so that the first clamping block and the third clamping block span the first clamping plate; the second clamping block is provided with a groove, a part of the second clamping plate located between the two ends is embedded in the groove, and the second clamping block can slide along the second clamping plate.

4. The punching device according to claim 1, characterized in that It also includes a support frame, the two ends of the second splint are arranged on the support frame, the first splint is arranged above the first splint, and a fixed mounting plate is respectively provided on one end of the support frame close to the feed port and the discharge port, and the two ends of the first splint are respectively connected to the two fixed mounting plates.

5. The punching device according to claim 2, characterized in that The first driving mechanism includes a first support shaft and a first bearing sleeved on the first support shaft, the first bearing is connected to the second clamping block, the upper end of the first support shaft passes through the second clamping block and is connected to the first clamping block, and the lower end of the first support shaft abuts against the first lifting plate; The third driving mechanism includes a second support shaft and a second bearing sleeved on the second support shaft, the second bearing is connected to the support frame, the upper end of the second support shaft passes through the support frame and is connected to the third clamping block, and the lower end of the second bearing shaft abuts against the second lifting plate.

6. The punching device according to claim 5, characterized in that It also includes a rotating shaft for transmission connection with the driving motor, and a first roller body and a second roller body are eccentrically arranged on the rotating shaft; The first lifting plate is in rolling connection with the outer wall of the first roller, and the second lifting plate is in rolling connection with the outer wall of the second roller. When the rotating shaft rotates, the first lifting plate and the second lifting plate are alternately raised and lowered.

7. The punching device according to claim 6, characterized in that The second driving mechanism includes a rotating wheel and a crank. The rotating wheel is connected to the rotating shaft through a transmission wheel mechanism so that the rotating shaft can drive the rotating wheel to rotate. One end of the crank is pivotally connected to the second clamping block, and the other end of the crank is connected to a position point on the rotating wheel that is deviated from the rotation center.

8. The punching device according to claim 7, characterized in that The rotating wheel is further provided with a linear groove extending in its radial direction. A connecting block is provided in the linear groove. The position of the connecting block in the linear groove is adjustable. One end of the crank is connected to the connecting block.

9. The punching device according to claim 7, characterized in that: The support frame includes a loading end close to the feed port and a feeding end close to the discharge port. The rotating wheel is located below the loading end. The loading end is also provided with an auxiliary loading plate docked with the feed port. The auxiliary loading end is provided with a guide groove directly opposite to the feed port. The guide groove is used to place the material belt and guide the material belt into the feed port.

10. The punching device according to claim 9, characterized in that The loading end of the support frame has a notch connected to the rotating wheel below, the inner end of the auxiliary loading plate close to the feed port is located in the notch, and the inner end is pivotally connected to the support frame, so that the auxiliary loading plate can flip relative to the support frame and the auxiliary loading plate has a first state and a second state; a supporting portion is also provided in the notch on the support frame, and when the auxiliary loading plate is in the first state, the supporting portion abuts against the bottom wall of the auxiliary loading plate, so that the guide groove is opposite to the feed port; when the auxiliary loading plate is in the second state, the notch is exposed.

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