Feeding device and stamping die

Abstract

The application provides a feeding device and a stamping die to improve feeding quality. The feeding device comprises a rotating disc assembly, a rotating shaft assembly and a driving assembly. The rotating disc assembly comprises a rotating disc and a plurality of convex pieces. The plurality of convex pieces are equidistantly arranged along the circumference of the rotating disc and are respectively movably connected with the rotating disc. The rotating shaft assembly comprises a rotating shaft, a damping piece and a fixing piece. The rotating shaft is coaxially arranged with the rotating disc, penetrates through the rotating disc and is connected with the rotating disc. The damping piece is arranged at one end of the rotating shaft. The fixing piece is arranged at the other end of the rotating shaft. The driving assembly comprises a connecting piece, a gear, a torsional spring and a rack. The connecting piece is sleeved on the rotating shaft and is connected with the rotating shaft. The rotating shaft penetrates through the gear and is engaged with the gear. The gear can rotate in one direction around the rotating shaft. The torsional spring is sleeved on the rotating shaft. The two ends of the torsional spring are respectively elastically abutted against the connecting piece and the rotating shaft. The rack is slidably arranged on one side of the gear and is engaged with the gear.

Description

Technical Field

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

[0002] Currently, when conveying material belts, such as within stamping dies, the thinness and length of the belts cause them to bulge and stack during transport, leading to belt damage and reduced feeding quality. Utility Model Content

[0003] In view of the above situation, it is necessary to provide a feeding device and a stamping die to improve the feeding quality.

[0004] This application provides a feeding device for conveying a material strip having multiple through holes, wherein the multiple through holes are equally spaced along the extension direction of the material strip, including: A turntable assembly includes a turntable component and a plurality of protrusions. The plurality of protrusions are equally spaced along the circumference of the turntable component and are movably connected to the turntable component respectively. The protrusions are configured to be inserted into the through holes of the material strip and drive the material strip to move under the drive of the turntable component. A rotating shaft assembly includes a rotating shaft component, a damping component, and a fixing component. The rotating shaft component is coaxially arranged with the turntable component, passes through the turntable component, and is connected to the turntable component. The damping component is located at one end of the rotating shaft component, and the fixing component is located at the other end of the rotating shaft component. A drive assembly includes a connector, a gear, a torsion spring, and a rack. The connector is sleeved on and connected to the rotating shaft. The rotating shaft passes through and meshes with the gear, which is unidirectionally rotatable around the rotating shaft. The torsion spring is sleeved on the rotating shaft, with its two ends elastically abutting against the connector and the rotating shaft, respectively. The rack is slidably disposed on one side of the gear and meshes with it. The rack drives the gear to rotate, causing the gear to compress the torsion spring against the connector, thereby driving the connector and the rotating shaft to rotate.

[0005] In some embodiments, the turntable component is provided with a plurality of receiving slots and a plurality of assembly slots. The plurality of receiving slots are equally spaced along the circumference of the turntable component and correspond one-to-one with the plurality of protrusions. The plurality of assembly slots correspond one-to-one with the plurality of receiving slots. The assembly slots are located on the side of the turntable component facing the gear and communicate with the corresponding receiving slot. The protrusion includes a protruding body, a first elastic body, and a pushing body. The protruding body is inserted into the corresponding receiving groove and extends out of the groove opening. The two ends of the first elastic body elastically abut against the protruding body and the bottom of the receiving groove, respectively. The pushing body is movably inserted through the protruding body and the corresponding assembly groove and extends out of the groove opening. The pushing body abuts against the inclined surface of the protruding body. The feeding device is provided with a material release position, and the turntable assembly further includes a pressing member. The pressing member is provided at the material release position and fixedly located on the side of the turntable assembly facing the gear. The pressing member is used to press against the pushing body that has moved to the material release position, so that the protrusion retracts into the receiving groove under the pushing of the pushing body, and compresses the first elastic body to the bottom of the receiving groove, so as to loosen the material belt.

[0006] In some embodiments, the gear is provided with a through groove, the through groove is coaxially arranged with the rotating shaft, and the groove wall of the through groove is provided with a plurality of ratchet teeth along the circumference of the gear; The rotating shaft component includes a rotating shaft body, an elastic pawl, and a retaining body. The rotating shaft body passes through the gear, the torsion spring, and the turntable, and is respectively connected to the damping component, the fixing component, the turntable, and the connecting component. The elastic pawl is located on the side wall of the rotating shaft body and meshes with the ratchet teeth. The elastic pawl is configured to drive the rotating shaft body to rotate under the push of the ratchet teeth. The retaining body is located on the side wall of the rotating shaft body and is adjacent to the turntable relative to the elastic pawl. The retaining body is configured to abut against the torsion spring.

[0007] In some embodiments, the fastener includes: A fixed body is provided on one side of the gear and has a mounting groove, the mounting groove passing through the fixed body, and one end of the rotating shaft is inserted into the mounting groove; A support body, inserted into the fixing body and extending into the mounting groove, is used to fix one end of the rotating shaft; and A damping body is spaced apart from the support body, and the damping body is inserted into the fixing body and extends into the mounting groove.

[0008] In some embodiments, the fastener includes: A stop body is provided, which covers the groove of the mounting slot away from the gear and is detachably connected to the fixing body. The stop body is used to abut against the rotating shaft.

[0009] In some embodiments, the pivot assembly further includes: A first elastic element is disposed below the fixing element and connected to the fixing element.

[0010] In some embodiments, the connector includes: A first connector is sleeved on the rotating shaft. The first connector has a plurality of first meshing teeth on the side facing the turntable. The plurality of first meshing teeth are evenly arranged around the rotating shaft. The second connector is sleeved on the rotating shaft and detachably connected to the rotating shaft. The second connector has a plurality of second meshing teeth on the side facing the first connector. The plurality of second meshing teeth are evenly arranged around the rotating shaft and mesh with the plurality of first meshing teeth.

[0011] In some embodiments, the driver component further includes: The second elastic element is located below the rack and connected to the rack.

[0012] In some embodiments, the driver component further includes: A limiting member is provided on one side of the gear and has a limiting groove and an opening. The limiting groove passes through the limiting member, and the opening is provided on the side of the limiting member facing the gear and communicates with the limiting groove. The rack is inserted into the limiting groove, and the rack extends out of the opening on the side facing the gear and meshes with the gear.

[0013] This application also provides a stamping die, including: The lower die device is used to carry the material strip; The feeding device described in any of the above embodiments is disposed on the lower die device, and the feeding device is used to convey the material belt; and An upper die device is disposed opposite to the lower die device, and the upper die device is used to stamp the strip to form a product.

[0014] When the above-mentioned feeding device and stamping die are in use, firstly, the upper die moves closer to the lower die to press against the rack, and the rack drives the gear to rotate. Then, the gear drives the rotating shaft, connecting parts, and turntable to rotate synchronously, so that the turntable drives multiple protrusions to be inserted into multiple through holes of the strip in sequence. The protrusions abut against the hole wall of the through hole and push the strip along the first direction, avoiding the strip from bulging or stacking. This allows the strip near the upper die to be stably stamped to the preset position to form a product. At the same time, the rotating shaft compresses the torsion spring to the connecting parts, so that the torsion spring absorbs the excessive pressure applied to the rack by the upper die, preventing the strip from being damaged by excessive pulling of the protrusions. Finally, the upper die moves away from the lower die, and the compressed torsion spring provides elasticity to drive the gear to reset and rotate, and synchronously drive the rack to reset. Since the gear can only rotate unidirectionally around the rotating shaft, it can prevent the rotating shaft and turntable from rotating synchronously with the resetting gear, causing the strip to retract. In this way, the turntable assembly, shaft assembly and drive assembly work together to drive the material belt to move stably along the first direction, avoiding the material belt from bulging or stacking during the conveying process, thereby improving the feeding quality. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the stamping die and the matching strip provided in the embodiments of this application.

[0016] Figure 2 for Figure 1 The diagram shows a three-dimensional structure of the feeding device and the matching strip in the stamping die.

[0017] Figure 3 for Figure 2 The diagram shown is an exploded view of the feeding device.

[0018] Figure 4 for Figure 3 The diagram shows an exploded view of the turntable assembly in the feeding device.

[0019] Key component symbols: Feeding device 100, loosening position 110, turntable assembly 10, turntable component 11, receiving groove 111, assembly groove 112, protrusion 12, protruding body 121, first elastic body 122, pushing body 123, pressing component 13, rotating shaft assembly 20, rotating shaft component 21, rotating shaft body 211, elastic pawl 212, holding body 213, damping component 22, fixing component 23, fixing body 231, placement groove 2311, support body 232, damping body 233, stop. Body 234, first elastic element 24, support element 25, drive assembly 30, connector 31, first connecting body 311, first meshing tooth 3111, second connecting body 312, second meshing tooth 3121, gear 32, through groove 321, ratchet tooth 322, torsion spring 33, rack 34, second elastic element 35, limiting element 36, limiting groove 361, opening 362, stamping die 200, upper die device 210, lower die device 220, strip 300, through hole 301. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0024] Please see Figure 1 This application provides a stamping die 200, which includes a feeding device 100, an upper die device 210, and a lower die device 220. The lower die device 220 is configured to carry a strip material 300. The upper die device 210 and the lower die device 220 are arranged opposite to each other. The feeding device 100 is disposed on the lower die device 220. The feeding device 100 drives the strip material 300 to move under the pressure of the upper die device 210, so that the upper die device 210 stably stamps the strip material 300 to form a product. The strip material 300 has a plurality of through holes 301, which are equally spaced along the extension direction of the strip material 300. The product can be a conductive spring, a frame, a card holder, etc.

[0025] For ease of understanding and explanation, a three-dimensional coordinate system is established in some of the accompanying drawings, with the first direction being... Figure 1 The X-axis direction is shown, and the second direction is... Figure 1 The Y-axis direction shown is the third direction. Figure 1 The Z-axis direction shown is perpendicular to each other in the first, second, and third directions.

[0026] Please see Figure 2 , Figure 3 and Figure 4 The feeding device 100 includes a turntable assembly 10, a rotating shaft assembly 20, and a drive assembly 30.

[0027] The turntable assembly 10 includes a turntable component 11 and a plurality of protrusions 12. The plurality of protrusions 12 are equally spaced along the circumference of the turntable component 11 and are movably connected to the turntable component 11 respectively. The protrusions 12 are configured to be inserted into the through holes 301 of the material belt 300 and drive the material belt 300 to move under the drive of the turntable component 11. The rotating shaft assembly 20 includes a rotating shaft component 21, a damping component 22 and a fixing component 23. The rotating shaft component 21 is coaxially arranged with the turntable component 11, passes through the turntable component 11 and is connected to the turntable component 11. The damping component 22 is located at one end of the rotating shaft component 21 and the fixing component 23 is located at the other end of the rotating shaft component 21. The drive assembly 30 includes a connector 31, a gear 32, a torsion spring 33, and a rack 34. The connector 31 is sleeved on and connected to the rotating shaft 21. The rotating shaft 21 passes through and meshes with the gear 32. The gear 32 can rotate unidirectionally around the rotating shaft 21. The torsion spring 33 is sleeved on the rotating shaft 21. The two ends of the torsion spring 33 elastically abut against the connector 31 and the rotating shaft 21, respectively. The rack 34 is slidably disposed on one side of the gear 32 and meshes with the gear 32. The rack 34 is used to drive the gear 32 to rotate, so that the gear 32 compresses the torsion spring 33 to the connector 31, and drives the connector 31 and the rotating shaft 21 to rotate. For example, the torsion spring 33 can be a torsion spring, and the damping element 22 can be any damping part, damping block or similar damping block that can clamp the rotating shaft 21, such as two damping blocks arranged opposite each other, with a screw passing through one of the damping blocks and threaded to the other damping block. The clamping force of the two damping blocks applied to the rotating shaft 21 between them can be adjusted by adjusting the tightness of the screw.

[0028] When the aforementioned feeding device 100 and stamping die 200 are in use, firstly, the upper die device 210 moves closer to the lower die device 220 to press against the rack 34, and the rack 34 drives the gear 32 to rotate; then, the gear 32 drives the rotating shaft 21, the connecting member 31, and the turntable 11 to rotate synchronously, so that the turntable 11 drives multiple protrusions 12 to be inserted into multiple through holes 301 of the strip 300 in sequence, so that the protrusions 12 abut against the hole wall of the through hole 301 and push the strip 300 to move in the first direction, avoiding the strip 300 from bulging, stacking, etc., thereby allowing the upper die device 210 to stably stamp and move to the preset position. The material strip 300 is placed to form a product. At the same time, the rotating shaft 21 compresses the torsion spring 33 to the connecting member 31, so that the torsion spring 33 absorbs the excessive pressure applied to the rack 34 by the upper mold device 210, preventing the material strip 300 from being damaged by excessive pulling of the protrusion 12. Finally, the upper mold device 210 moves away from the lower mold device 220, and the compressed torsion spring 33 provides elasticity to drive the gear 32 to reset and rotate, and synchronously drive the rack 34 to reset. At the same time, since the gear 32 can only rotate unidirectionally around the rotating shaft 21, it can prevent the rotating shaft 21 and the turntable 11 from rotating synchronously with the reset gear 32, causing the material strip 300 to retract. In this way, through the cooperation of the turntable assembly 10, the rotating shaft assembly 20 and the drive assembly 30, the material strip 300 is driven to move stably along the first direction, avoiding the material strip 300 from bulging or stacking during the conveying process, thereby improving the feeding quality.

[0029] In addition, the damping member 22 and the fixing member 23 support the two ends of the rotating shaft member 21 respectively, preventing the rotating shaft member 21 from shaking during rotation or when subjected to impact, thereby improving the rotational stability of the rotating shaft member 21; in addition, by adjusting the magnitude of the clamping force applied to the rotating shaft member 21 by the damping member 22, the rotational speed of the rotating shaft member 21 is adjusted, ensuring that the protrusion 12 is stably inserted into the through hole 301 of the material belt 300, thereby improving the feeding accuracy.

[0030] Please see Figure 3 and Figure 4In some embodiments, the turntable 11 is provided with a plurality of receiving grooves 111 and a plurality of assembly grooves 112. The plurality of receiving grooves 111 are equally spaced along the circumference of the turntable 11 and correspond one-to-one with a plurality of protrusions 12. The plurality of assembly grooves 112 correspond one-to-one with the plurality of receiving grooves 111. The assembly grooves 112 are located on the side of the turntable 11 facing the gear 32 and communicate with the corresponding receiving groove 111. The protrusion 12 includes a protrusion body 121, a first elastic body 122 and a pushing body 123. The protrusion body 121 is inserted into the corresponding receiving groove 111 and extends out of the groove opening of the receiving groove 111. The two ends of the first elastic body 122 elastically abut against the bottom of the groove of the protrusion body 121 and the receiving groove 111, respectively. The pushing body 123 is movably inserted through the protrusion body 121 and the corresponding assembly groove 112 and extends out of the groove opening of the assembly groove 112. The pushing body 123 abuts against the inclined surface of the protrusion body 121. The feeding device 100 is provided with a material release position 110. The turntable assembly 10 also includes a pressing member 13. The pressing member 13 is provided at the material release position 110 and fixedly provided on the side of the turntable assembly 11 facing the gear 32. The pressing member 13 is used to press the pushing body 123 that has moved to the material release position 110, so that the protrusion 121 retracts into the receiving groove 111 under the pushing of the pushing body 123, and compresses the first elastic body 122 to the bottom of the receiving groove 111, so as to loosen the material belt 300.

[0031] Thus, through the above configuration, when the conveyor belt 300 moves to the loosening position 110, the pressing member 13 presses against the pushing body 123 that has moved to the loosening position 110, so that the protrusion 121 retracts into the receiving groove 111 under the pushing of the pushing body 123, and compresses the first elastic body 122 to the bottom of the receiving groove 111, so that the protrusion 121 disengages from the through hole 301 of the conveyor belt 300 to loosen the conveyor belt 300, avoiding the protrusion 121 rotating to the loosening position 110 from interfering with the conveying of the conveyor belt 300, thereby improving the feeding stability. After the protrusion 121 loosens from the conveyor belt 300, the compressed first elastic body 122 provides elastic force to drive the protrusion 121 to reset and extend out of the groove of the receiving groove 111, which is beneficial for the protrusion 121 to repeat the operation.

[0032] Please see Figure 3In some embodiments, the gear 32 is provided with a through groove 321, which is coaxially arranged with the rotating shaft 21, and the groove wall of the through groove 321 is provided with a plurality of ratchet teeth 322 along the circumference of the gear 32. The rotating shaft component 21 includes a rotating shaft body 211, an elastic pawl 212, and a retaining body 213. The rotating shaft body 211 passes through the gear 32, the torsion spring 33, and the turntable component 11, and is respectively connected to the damping component 22, the fixing component 23, the turntable component 11, and the connecting component 31. The elastic pawl 212 is disposed on the side wall of the rotating shaft body 211 and meshes with the ratchet teeth 322. The elastic pawl 212 is configured to drive the rotating shaft body 211 to rotate under the pushing of the ratchet teeth 322. The retaining body 213 is disposed on the side wall of the rotating shaft body 211 and is adjacent to the turntable component 11 relative to the elastic pawl 212. The retaining body 213 is configured to abut against the torsion spring 33. Exemplarily, the elastic pawl 212 can be a pawl connected to a spring.

[0033] Thus, through the above configuration, when the upper mold device 210 and the lower mold device 220 are closed, the gear 32 pushes against the elastic pawl 212 through the ratchet teeth 322, driving the rotating shaft 211, the connecting piece 31 and the turntable 11 to rotate synchronously. When the upper mold device 210 and the lower mold device 220 are opened, the gear 32 resets and rotates. At the same time, the ratchet teeth 322 press against the elastic pawl 212 and rotate relative to the elastic pawl 212, so that the gear 32 rotates relative to the rotating shaft 211, preventing the rotating shaft 211 and the turntable 11 from retracting due to the rotation of the reset gear 32, thereby improving the feeding stability.

[0034] Please see Figure 3 In some embodiments, the fixing member 23 includes a fixing body 231, a support body 232, and a damping body 233. The fixing body 231 is disposed on one side of the gear 32 and has a mounting groove 2311. The mounting groove 2311 extends through the fixing body 231 along a second direction, and one end of the rotating shaft 21 is inserted into the mounting groove 2311. The support body 232 is inserted into the fixing body 231 along a third direction and extends into the mounting groove 2311. The support body 232 is used to fix one end of the rotating shaft 21. The damping body 233 is spaced apart from the support body 232 along the second direction. The damping body 233 is inserted into the fixing body 231 along a third direction and extends into the mounting groove 2311. The damping body 233 is used to clamp the end of the rotating shaft 21. It can be understood that the damping body 233 and the damping member 22 have roughly the same structure, the difference being that the damping body 233 is disposed on the fixing body 231.

[0035] Thus, through the above configuration, the support body 232 stably supports the end of the rotating shaft 21, thereby ensuring the stable rotation of the rotating shaft 21. Since the clamping force applied to the rotating shaft 21 by a single damping element 22 is too small, the damping body 233 and the damping element 22 cooperate to increase the adjustment range of the clamping force applied to the rotating shaft 21, thereby improving the adjustment flexibility.

[0036] Please see Figure 3 In some embodiments, the fixing member 23 includes a stop 234. The stop 234 covers the slot of the mounting groove 2311 away from the gear 32 and is detachably connected to the fixing member 231. The stop 234 is used to abut against the rotating shaft member 21.

[0037] Thus, through the above arrangement, the stop body 234 abuts against the end of the rotating shaft 21 to prevent the rotating shaft 21 from moving axially, thereby further improving the operational stability of the rotating shaft assembly 20.

[0038] Please see Figure 2 In some embodiments, the pivot assembly 20 further includes a first elastic element 24, which is disposed below and connected to the fixing element 23. Exemplarily, the first elastic element 24 may be a spring.

[0039] Thus, through the above configuration, the first elastic element 24 can provide elastic support for the fixed element 23, absorb the impact and vibration of the fixed element 23 during operation, reduce the wear between the fixed element 23 and other components, and improve service life and operational stability.

[0040] Please see Figure 2 In some embodiments, the pivot assembly 20 further includes a support member 25, and the number of first elastic members 24 is two. The support member 25 is disposed between the connector 31 and the turntable 11 and sleeved on the pivot member 21. One of the first elastic members 24 is connected to the fixing member 23, and the other first elastic member 24 is disposed below the support member 25 and connected to the support member 25.

[0041] Thus, through the above arrangement, the support member 25, together with the fixing member 23, stably supports the rotating shaft member 21.

[0042] Please see Figure 2 and Figure 3 In some embodiments, the connector 31 includes a first connector 311 and a second connector 312. The first connector 311 is sleeved on the rotating shaft 21, and the first connector 311 has a plurality of first meshing teeth 3111 on the side facing the turntable 11, and the plurality of first meshing teeth 3111 are evenly arranged around the rotating shaft 21. The second connector 312 is sleeved on the rotating shaft 21 and detachably connected to the rotating shaft 21, and the second connector 312 has a plurality of second meshing teeth 3121 on the side facing the first connector 311, and the plurality of second meshing teeth 3121 are evenly arranged around the rotating shaft 21, and the plurality of second meshing teeth 3121 mesh with the plurality of first meshing teeth 3111.

[0043] Thus, through the above configuration, when the rotating shaft 21 rotates, the first connecting body 311 and the second connecting body 312 are tightly engaged by the first meshing tooth 3111 and the second meshing tooth 3121, enabling the turntable 11 to rotate smoothly under the drive of the rotating shaft 21. This helps to reduce the shaking and vibration of the turntable 11 during rotation, and avoids the material belt 300 from deviating or shaking during conveying, thereby improving the conveying stability of the material belt 300. In addition, when the torque input to the rotating shaft 21 exceeds the preset value, the first connecting body 311 and the second connecting body 312 slip against each other to release the excess torque through slippage, avoiding the excessive torque from causing impact or vibration in the feeding device 100, and ensuring the smooth operation of the feeding device 100.

[0044] Please see Figure 2 In some embodiments, the drive assembly 30 further includes a second elastic element 35, which is disposed below and connected to the rack 34. The end of the second elastic element 35 furthest from the rack 34 is connected to the lower mold assembly 220.

[0045] Thus, with the above arrangement, when the upper mold device 210 moves close to the lower mold device 220 and presses against the rack 34, the rack 34 compresses the second elastic member 35 to the lower mold device 220, so that the second elastic member 35 provides elastic force when the rack 34 is reset, thereby driving the rack 34 to reset quickly.

[0046] Please see Figure 2 and Figure 3 In some embodiments, the drive assembly 30 further includes a limiting member 36. The limiting member 36 is disposed on one side of the gear 32 and has a limiting groove 361 and an opening 362. The limiting groove 361 extends through the limiting member 36 in a third direction, and the opening 362 is disposed on the side of the limiting member 36 facing the gear 32 and communicates with the limiting groove 361. The rack 34 is inserted into the limiting groove 361 in a third direction, and the rack 34 extends out of the opening 362 on the side facing the gear 32 and meshes with the gear 32.

[0047] Thus, through the above settings, the limiting groove 361 can restrict the sliding path of the rack 34, ensuring that the rack 34 can accurately mesh with the gear 32, thereby improving the driving accuracy of the rack 34.

[0048] The working process of the above-mentioned stamping die 200 is roughly as follows: First, the upper mold device 210 moves close to the lower mold device 220 to press against the rack 34. The rack 34 moves along the third direction under the limit of the limiting groove 361 and compresses the second elastic member 35 to the lower mold device 220, so as to drive the meshing gear 32 to rotate. Then, the gear 32 drives the elastic pawl 212, the rotating shaft 21, the connecting member 31 and the turntable 11 to rotate synchronously through the ratchet tooth 321, so that the turntable 11 drives multiple protrusions 12 to be inserted into multiple through holes 301 of the strip 300 in sequence, so that the protrusions 12 abut against the hole wall of the through hole 301 and push the strip 300 to move in the first direction, avoiding the strip 300 from bulging, stacking and other conditions, thereby allowing the strip 300 near the upper die device 210 to be stably stamped to the preset position to form a product. At the same time, the abutment body 213 compresses the torsion spring 33 to the connecting member 31, so that the torsion spring 33 absorbs the excessive pressure applied by the upper die device 210 to the rack 34, preventing the strip 300 from being damaged by excessive pulling of the protrusions 12. Finally, the upper mold device 210 moves away from the lower mold device 220, and the compressed torsion spring 33 provides elastic force to drive the gear 32 to reset and rotate, and simultaneously drive the rack 34 to reset. At the same time, the ratchet tooth 321 presses against the elastic pawl 212 and rotates relative to the elastic pawl 212, so that the gear 32 rotates relative to the rotating shaft 21, preventing the rotating shaft 21 and the turntable 11 from retracting along with the reset gear 32.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A feeding device for conveying a material strip having a plurality of through holes, wherein the plurality of through holes are equally spaced along the extension direction of the material strip, characterized in that, include: A turntable assembly includes a turntable component and a plurality of protrusions. The plurality of protrusions are equally spaced along the circumference of the turntable component and are movably connected to the turntable component respectively. The protrusions are configured to be inserted into the through holes of the material strip and drive the material strip to move under the drive of the turntable component. A rotating shaft assembly includes a rotating shaft component, a damping component, and a fixing component. The rotating shaft component is coaxially arranged with the turntable component, passes through the turntable component, and is connected to the turntable component. The damping component is located at one end of the rotating shaft component, and the fixing component is located at the other end of the rotating shaft component. A drive assembly includes a connector, a gear, a torsion spring, and a rack. The connector is sleeved on and connected to the rotating shaft. The rotating shaft passes through and meshes with the gear, which is unidirectionally rotatable around the rotating shaft. The torsion spring is sleeved on the rotating shaft, with its two ends elastically abutting against the connector and the rotating shaft, respectively. The rack is slidably disposed on one side of the gear and meshes with it. The rack drives the gear to rotate, causing the gear to compress the torsion spring against the connector, thereby driving the connector and the rotating shaft to rotate.

2. The feeding device as described in claim 1, characterized in that, The turntable component is provided with multiple receiving slots and multiple assembly slots. The multiple receiving slots are equally spaced along the circumference of the turntable component and correspond one-to-one with the multiple protrusions. The multiple assembly slots correspond one-to-one with the multiple receiving slots. The assembly slots are located on the side of the turntable component facing the gear and are connected to the corresponding receiving slot. The protrusion includes a protruding body, a first elastic body, and a pushing body. The protruding body is inserted into the corresponding receiving groove and extends out of the groove opening. The two ends of the first elastic body elastically abut against the protruding body and the bottom of the receiving groove, respectively. The pushing body is movably inserted through the protruding body and the corresponding assembly groove and extends out of the groove opening. The pushing body abuts against the inclined surface of the protruding body. The feeding device is provided with a material release position, and the turntable assembly further includes a pressing member. The pressing member is provided at the material release position and fixedly located on the side of the turntable assembly facing the gear. The pressing member is used to press against the pushing body that has moved to the material release position, so that the protrusion retracts into the receiving groove under the pushing of the pushing body, and compresses the first elastic body to the bottom of the receiving groove, so as to loosen the material belt.

3. The feeding device as described in claim 1, characterized in that, The gear is provided with a through groove, which is coaxially arranged with the rotating shaft. The groove wall is provided with multiple ratchet teeth along the circumference of the gear. The rotating shaft component includes a rotating shaft body, an elastic pawl, and a retaining body. The rotating shaft body passes through the gear, the torsion spring, and the turntable, and is respectively connected to the damping component, the fixing component, the turntable, and the connecting component. The elastic pawl is located on the side wall of the rotating shaft body and meshes with the ratchet teeth. The elastic pawl is configured to drive the rotating shaft body to rotate under the push of the ratchet teeth. The retaining body is located on the side wall of the rotating shaft body and is adjacent to the turntable relative to the elastic pawl. The retaining body is configured to abut against the torsion spring.

4. The feeding device as described in claim 1, characterized in that, The fastener includes: A fixed body is provided on one side of the gear and has a mounting groove, the mounting groove passing through the fixed body, and one end of the rotating shaft is inserted into the mounting groove; A support body, inserted into the fixing body and extending into the mounting groove, is used to fix one end of the rotating shaft; and A damping body is spaced apart from the support body, and the damping body is inserted into the fixing body and extends into the mounting groove.

5. The feeding device as described in claim 4, characterized in that, The fastener includes: A stop body is provided, which covers the groove of the mounting slot away from the gear and is detachably connected to the fixing body. The stop body is used to abut against the rotating shaft.

6. The feeding device as described in claim 1, characterized in that, The rotating shaft assembly also includes: A first elastic element is disposed below the fixing element and connected to the fixing element.

7. The feeding device as described in claim 1, characterized in that, The connector includes: A first connector is sleeved on the rotating shaft. The first connector has a plurality of first meshing teeth on the side facing the turntable. The plurality of first meshing teeth are evenly arranged around the rotating shaft. The second connector is sleeved on the rotating shaft and detachably connected to the rotating shaft. The second connector has a plurality of second meshing teeth on the side facing the first connector. The plurality of second meshing teeth are evenly arranged around the rotating shaft and mesh with the plurality of first meshing teeth.

8. The feeding device as described in claim 1, characterized in that, The driving component also includes: The second elastic element is located below the rack and connected to the rack.

9. The feeding device as described in claim 1, characterized in that, The driving component also includes: A limiting member is provided on one side of the gear and has a limiting groove and an opening. The limiting groove passes through the limiting member, and the opening is provided on the side of the limiting member facing the gear and communicates with the limiting groove. The rack is inserted into the limiting groove, and the rack extends out of the opening on the side facing the gear and meshes with the gear.

10. A stamping die, characterized in that, include: The lower die device is used to carry the material strip; The feeding device as described in any one of claims 1-9 is disposed on the lower die device, and the feeding device is used to convey the material belt movement; and An upper die device is disposed opposite to the lower die device, and the upper die device is used to stamp the strip to form a product.

Images