Feeding device and punching device

Abstract

The invention discloses a feeding device and a stamping device. The feeding device comprises a base, the base is provided with a sliding cavity, and the upper surface of the base is suitable for bearing a material belt; the first feeding mechanism and the second feeding mechanism comprise sliding blocks and feeding protruding parts, the feeding protruding parts are arranged on the sliding blocks, the sliding blocks are arranged in the sliding cavities in a sliding mode, and the feeding protruding parts can protrude out of the upper surface of the base and make contact with the material belt; the driving mechanism is suitable for driving the first feeding mechanism and the second feeding mechanism to get close to each other and get away from each other, and when the first feeding mechanism and the second feeding mechanism get away from each other, a feeding protruding part of the first feeding mechanism drives the material belt to move in the first direction; when the first feeding mechanism and the second feeding mechanism get close to each other, the feeding protruding part of the second feeding mechanism drives the material belt to move in the first direction.

Description

Technical Field

[0001] The present invention relates to the technical field of machining, and more particularly, to a feeding device and a stamping device. Background Art

[0002] In related technologies, feeding devices are usually required to be provided in machining equipment. For high-precision punching presses, since the feeding stroke of their feeding devices is relatively low, an additional air cylinder is usually required to pull the material to meet the feeding requirements of a large step distance. However, the air cylinder has a slow movement speed, is not easy to maintain, has a short service life, and is easily affected by external factors (such as a humid, oily environment, high temperature, air pressure, etc.). Therefore, the air cylinder cannot meet the usage requirements of machining equipment. Summary of the Invention

[0003] An object of the present invention is to provide a new technical solution for a feeding device and a stamping device.

[0004] According to a first aspect of the present invention, a feeding device is provided. The feeding device includes: A base, a sliding cavity is provided in the base, and the upper surface of the base is adapted to carry a strip; A first feeding mechanism and a second feeding mechanism, the first feeding mechanism and the second feeding mechanism include a slider and a feeding protrusion, the feeding protrusion is provided on the slider, the slider is slidably provided in the sliding cavity, and the feeding protrusion can protrude from the upper surface of the base and contact the strip; and A driving mechanism, the driving mechanism is adapted to drive the first feeding mechanism and the second feeding mechanism to approach and separate from each other. When the first feeding mechanism and the second feeding mechanism are separated from each other, the feeding protrusion of the first feeding mechanism drives the strip to move in a first direction; when the first feeding mechanism and the second feeding mechanism approach each other, the feeding protrusion of the second feeding mechanism drives the strip to move in the first direction.

[0005] Optionally, the first feeding mechanism and the second feeding mechanism further include a push rod, the push rod is provided on the slider, a strip-shaped groove is provided on the base, the strip-shaped groove communicates with the sliding cavity, and the push rods of the first feeding mechanism and the second feeding mechanism are slidably provided in the strip-shaped groove, and the driving mechanism is adapted to drive the push rods of the first feeding mechanism and the second feeding mechanism to make the first feeding mechanism and the second feeding mechanism approach and separate from each other.

[0006] Optionally, the driving mechanism includes two oppositely arranged side surfaces and transition surfaces respectively connected to the two side surfaces. The two side surfaces are parallel, and the two transition surfaces approach each other from the ends connected to the two side surfaces towards the ends away from the side surfaces. The two transition surfaces respectively abut against the push rods of the first feeding mechanism and the second feeding mechanism to drive the two push rods.

[0007] Optionally, the driving mechanism further includes an elastic reset member, and the elastic reset member is adapted to drive the sliders of the first feeding mechanism and the second feeding mechanism to approach or separate from each other.

[0008] Optionally, there are two elastic reset members, and the two elastic reset members are located between the two sliders, or the two sliders are located between the two elastic reset members.

[0009] Optionally, needle rollers are arranged on the bottom surface of the sliding cavity, and the slider is in rolling cooperation with the needle rollers.

[0010] Optionally, the feeding convex portions of the first feeding mechanism and the second feeding mechanism are wedge-shaped convexes. The first inclined surface of the wedge-shaped convex faces the incoming material side of the material tape, and the wedge-shaped convex includes a straight edge perpendicular to the first direction, and the straight edge faces the outgoing material side of the material tape.

[0011] Optionally, the first feeding mechanism and the second feeding mechanism further include swing arms and first elastic members. The swing arms are rotatably connected to the sliders, the feeding convex portions are arranged on the swing arms, and the first elastic members are adapted to drive the feeding convex portions to move in a direction away from the sliders.

[0012] Optionally, a limiting mechanism is further included. The limiting mechanism includes a limiting seat and an abutting portion. The limiting seat is arranged at an interval from the base, and the abutting portion is arranged on the limiting seat. The abutting portion is adapted to elastically abut against the material tape.

[0013] Optionally, the limiting mechanism further includes a check portion and a second elastic member. The check portion is slidably arranged on the limiting seat, and the second elastic member is adapted to drive the check portion to approach the material tape.

[0014] Optionally, a second inclined surface is arranged at the end of the check portion, and the second inclined surface faces the incoming material end of the limiting seat.

[0015] Optionally, there are two sets of the check portions and the second elastic members, and the two sets of the check portions and the second elastic members are respectively located at the incoming material end and the outgoing material end of the limiting seat.

[0016] According to the second aspect of the present invention, a stamping device is provided. The stamping device includes the feeding device of the present invention.

[0017] According to a third aspect of the present invention, a stamping device is provided. The stamping device includes the feeding device described in the present invention. During the process that the push rod abuts against the transition surface and moves in the direction close to the side surface, the first feeding mechanism drives the strip to move in the first direction; During the process that the push rod abuts against the side surface and moves in the direction away from the transition surface, the stamping device stamps the strip; During the process that the push rod abuts against the transition surface and moves in the direction away from the side surface, the second feeding mechanism drives the strip to move in the first direction.

[0018] In an embodiment of the present invention, the first feeding mechanism and the second feeding mechanism are periodically close to and away from each other through a driving mechanism. In this way, within one movement cycle of the driving mechanism, the feeding device can realize that the first feeding mechanism and the second feeding mechanism respectively drive the strip to move in the first direction. In this way, within one cycle of the first feeding mechanism and the second feeding mechanism being close to and away from each other, the strip is fed twice in the first direction, thereby significantly improving the feeding pitch and feeding speed of the feeding device.

[0019] Other features and advantages of the present invention will become clear through the following detailed description of the exemplary embodiments of the present invention with reference to the accompanying drawings. Brief Description of the Drawings

[0020] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments of the present invention and, together with the description, are used to explain the principles of the present invention.

[0021] Figure 1 is a perspective view of the feeding device according to an embodiment of the present invention.

[0022] Figure 2 is a front view of the feeding device according to an embodiment of the present invention.

[0023] Figure 3 is a top view of the feeding device according to an embodiment of the present invention.

[0024] Figure 4 is Figure 3 a cross-sectional view taken along line D-D in

[0025] Figure 5 is Figure 3 a cross-sectional view taken along line C-C in

[0026] Figure 6 is a schematic diagram of the stamping device in the mold opening state according to an embodiment of the present invention.

[0027] Figure 7Schematic diagram of a stamping device in a critical state according to an embodiment of the present invention.

[0028] Figure 8 Schematic diagram of a stamping device in a die - closing state according to an embodiment of the present invention.

[0029] Explanation of reference numerals: 100, driving mechanism; 101, side surface; 102, transition surface; 103, first spring; 104, second spring; 200, mounting plate; 300, base; 3001, supporting plate; 3002, intermediate plate; 3003, bottom plate; 301, first sliding cavity; 302, second sliding cavity; 303, first strip - shaped groove; 304, second strip - shaped groove; 305, first spring cavity; 306, second spring cavity; 307, upper surface; 308, needle roller; 309, guiding plate; 401, first feeding mechanism; 402, second feeding mechanism; 403, first slider; 404, second slider; 405, first push rod; 406, second push rod; 407, first groove; 408, second groove; 409, first swing arm; 410, second swing arm; 411, first wedge - shaped protrusion; 412, second wedge - shaped protrusion; 413, third spring; 414, first inclined surface; 500, limiting mechanism; 501, limiting seat; 502, mounting bracket; 503, connecting column; 504, abutting portion; 505, fourth spring; 506, check portion; 5061, second inclined surface; 507, fifth spring; 600, strip; 601, upper die holder; 602, upper clamping plate; 603, upper backing plate; 604, stripping backing plate; 605, stripping plate; 606, lower template; 607, lower backing plate; 608, lower die holder. Detailed implementation manners

[0030] Now, various exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that: Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended as a limitation on the present invention, its application, or its use.

[0032] Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be regarded as part of the specification.

[0033] In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0034] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it is not necessary to discuss it further in subsequent figures.

[0035] The feeding device according to an embodiment of the present invention will be specifically described below with reference to the accompanying drawings.

[0036] According to an embodiment of the present invention, a feeding device is provided. As Figure 1 、 Figure 4 、 Figure 5 shown, the feeding device includes: A base 300, the base 300 is provided with a sliding cavity, and the upper surface 307 of the base 300 is adapted to carry a tape 600; A first feeding mechanism 401 and a second feeding mechanism 402, the first feeding mechanism 401 and the second feeding mechanism 402 include a slider and a feeding protrusion, the feeding protrusion is provided on the slider, the slider is slidably disposed in the sliding cavity, and the feeding protrusion can protrude from the upper surface 307 of the base 300 and contact the tape 600; and A driving mechanism 100, the driving mechanism 100 is adapted to drive the first feeding mechanism 401 and the second feeding mechanism 402 to approach and separate from each other. When the first feeding mechanism 401 and the second feeding mechanism 402 are separated from each other, the feeding protrusion of the first feeding mechanism 401 drives the tape 600 to move in a first direction; when the first feeding mechanism 401 and the second feeding mechanism 402 approach each other, the feeding protrusion of the second feeding mechanism 402 drives the tape 600 to move in the first direction.

[0037] Specifically, the feeding device is used to supply the tape 600. Optionally, the feeding device intermittently supplies the tape 600 according to the processing cycle of the tape 600. The material of the tape 600 is metal, plastic, rubber, glass, ceramic, etc. Optionally, a plurality of holes are provided in the tape 600. During feeding, the feeding protrusion enters the holes and drives the tape 600 to move.

[0038] The base 300 is used to carry the tape 600, the first feeding mechanism 401, the second feeding mechanism 402, etc. During feeding, the tape 600 is located on the upper surface 307 of the base 300. A sliding cavity is formed inside the base 300. The sliding cavity can be formed by a partial concave of the upper surface 307 of the base 300, or a sliding cavity can be formed inside the base 300. An opening communicating with the sliding cavity is formed on the upper surface 307 of the base 300. As Figures 6 - 8 shown, the base 300 includes a bottom plate 3003, an intermediate plate 3002, and a support plate 3001 that are stacked. For example, the three are fixed together by means such as bolt connection, riveting, and welding. The upper surface 307 of the base 300 is located on the support plate 3001. A notch is provided on the intermediate plate 3002. The support plate 3001 and the bottom plate 3003 are arranged on both sides of the intermediate plate 3002 to seal the notch, thereby forming a sliding cavity between the support plate 3001, the intermediate plate 3002, and the bottom plate 3003. This method makes it easy to arrange various structures on the base 300. It can also be that the base 300 forms an integral structure. It should be noted that Figures 1 - 5 in, in order to facilitate the display of the internal structure of the base 300, the support plate 3001 is omitted.

[0039] The structures of the first feeding mechanism 401 and the second feeding mechanism 402 are the same or basically the same. The first feeding mechanism 401 and the second feeding mechanism 402 include sliders and feeding protrusions. The feeding protrusions are provided on the sliders. The feeding protrusions can protrude from the upper surface 307 of the base 300 to facilitate contact with the tape 600. The two sliders are slidably located in the sliding cavity. As Figure 4 shown, two sliding cavities are provided on the base 300, namely a first sliding cavity 301 and a second sliding cavity 302. The first sliding cavity 301 and the second sliding cavity 302 are separated by a stop block. The first feeding mechanism 401 includes a first slider 403 and a first feeding protrusion. The first slider 403 is slidably arranged in the first sliding cavity 301. The first feeding protrusion is located at the opening of the first sliding cavity 301 and protrudes upward. The second feeding mechanism 402 includes a second slider 404 and a second feeding protrusion. The second slider 404 is slidably arranged in the second sliding cavity 302. The second feeding protrusion is located at the opening of the second sliding cavity 302 and protrudes upward.

[0040] Optionally, the base 300 can also be provided with only one sliding cavity. The first slider 403 and the second slider 404 are slidably arranged in the sliding cavity.

[0041] The feeding protrusion can form a thrust and / or a frictional force on the tape 600 to drive the material to move in the first direction. Among them, the first direction is the direction in which the tape 600 is fed, as Figure 2 shown by the direction of the arrow. The left side of the feeding device is the incoming material side or the incoming material end. The right side of the feeding device is the outgoing material side or the outgoing material end.

[0042] Optionally, the slider and the feeding projection are made of metal, plastic, glass, ceramic, wood, etc. The shape of the slider is a cuboid, a cylinder, a sphere, an ellipsoid, etc.

[0043] The driving mechanism 100 is used to drive the first feeding mechanism 401 and the second feeding mechanism 402 to approach and separate from each other. During the feeding process, when the first feeding mechanism 401 and the second feeding mechanism 402 are separated from each other, the feeding projection of the first feeding mechanism 401 drives the tape 600 to move in the first direction. When the first feeding mechanism 401 and the second feeding mechanism 402 approach each other, the feeding projection of the second feeding mechanism 402 drives the tape 600 to move in the first direction. That is to say, one of the first feeding structure and the second feeding mechanism 402 drives the tape 600 to move in the first direction when they are separated from each other. The other of the first feeding structure and the second feeding mechanism 402 drives the tape 600 to move in the first direction when they approach each other.

[0044] In the embodiment of the present invention, the driving mechanism 100 enables the first feeding mechanism 401 and the second feeding mechanism 402 to approach and separate from each other periodically. In this way, within one movement cycle of the driving mechanism 100, the feeding device can realize that the first feeding mechanism 401 and the second feeding mechanism 402 respectively drive the tape 600 to move in the first direction. By this means, within one cycle of the first feeding mechanism 401 and the second feeding mechanism 402 approaching and separating from each other, the tape 600 is fed twice in the first direction, thereby significantly improving the feeding pitch and feeding speed of the feeding device.

[0045] Of course, those skilled in the art can set the distance that the first feeding mechanism 401 and the second feeding mechanism 402 move the tape 600 in each cycle according to actual needs.

[0046] In an embodiment of the present invention, the first feeding mechanism 401 and the second feeding mechanism 402 further include a push rod. The push rod is arranged on the slider. A strip-shaped groove is arranged on the base 300. The strip-shaped groove is communicated with the sliding cavity. The push rods of the first feeding mechanism 401 and the second feeding mechanism 402 are slidably arranged in the strip-shaped groove. The driving mechanism 100 is adapted to drive the push rods of the first feeding mechanism 401 and the second feeding mechanism 402 so that the first feeding mechanism 401 and the second feeding mechanism 402 approach and separate from each other.

[0047] In this embodiment, as Figure 1 、 Figure 2 、 Figure 6As shown, the first feeding mechanism 401 includes a first push rod 405. The first push rod 405 is connected to the side wall of the first slider 403. The second feeding mechanism 402 includes a second push rod 406. The second push rod 406 is connected to the side wall of the second slider 404. Two strip-shaped grooves are formed in the side wall of the base 300, such as the first strip-shaped groove 303 and the second strip-shaped groove 304. The first strip-shaped groove 303 communicates with the first sliding cavity 301. The second strip-shaped groove 304 communicates with the second sliding cavity 302. The first push rod 405 can slide along the first strip-shaped groove 303. The first push rod 405 protrudes from the first strip-shaped groove 303. The second push rod 406 can slide along the second strip-shaped groove 304. The second push rod 406 protrudes from the second strip-shaped groove 304.

[0048] The driving mechanism 100 is adapted to drive the push rods of the first feeding mechanism 401 and the second feeding mechanism 402, so that the first feeding mechanism 401 and the second feeding mechanism 402 approach and move away from each other. That is to say, the driving mechanism 100 pushes the first push rod 405 and the second push rod 406 to approach and move away from each other. The first push rod 405 and the second push rod 406 respectively drive the first slider 403 and the second slider 404 to approach and move away from each other. The first slider 403 and the second slider 404 respectively drive the first feeding protrusion and the second feeding protrusion to approach and move away from each other. The first feeding protrusion drives the tape 600 to move in the first direction when the two are moving away from each other for feeding. The second feeding protrusion drives the tape 600 to move in the first direction when the two are approaching each other for feeding. In this way, the feeding mechanism realizes feeding of the tape 600 twice in the first direction within one cycle.

[0049] The structure of the push rod and the strip-shaped groove in the embodiment of the present invention is simple, and the moving stability is high, so that the feeding device runs smoothly and has good durability.

[0050] In an embodiment of the present invention, the driving mechanism 100 includes two relatively arranged side surfaces 101 and transition surfaces 102 respectively connected to the two side surfaces 101. The two side surfaces 101 are parallel, and the two transition surfaces 102 approach each other from the end connected to the two side surfaces 101 to the end away from the side surfaces 101. The two transition surfaces 102 respectively abut against the push rods of the first feeding mechanism 401 and the second feeding mechanism 402 to drive the two push rods.

[0051] In this embodiment, as Figure 1 、 Figure 2As shown, the first push rod 405 and the second push rod 406 are in the state where they are closest to each other initially. The overall driving mechanism 100 has a plate-like structure. The two side surfaces 101 of the driving mechanism 100 perpendicular to the first direction are arranged in parallel. The top of the driving mechanism 100 is connected to the mounting plate 200. The longitudinal section of the bottom of the driving mechanism 100 has a trapezoidal structure. The two hypotenuses of the trapezoidal structure are transition surfaces 102. The two transition surfaces 102 are respectively connected to the two side surfaces 101. The two transition surfaces 102 are respectively used to push the first push rod 405 and the second push rod 406. When the driving mechanism 100 moves downward, under the push of the two transition surfaces 102, the first push rod 405 and the second push rod 406 move away from each other, thereby driving the first slider 403 and the second slider 404 to move away from each other. When the first push rod 405 and the second push rod 406 respectively reach the two side surfaces 101, the distance between them remains unchanged. When the driving mechanism 100 moves upward, under the action of an external force, the first slider 403 and the second slider 404 approach each other, and then the first push rod 405 and the second push rod 406 approach each other along the two transition surfaces 102 respectively.

[0052] Optionally, the two transition surfaces 102 can both be inclined surfaces. The lengths of the two inclined surfaces can be the same or different, and the inclination angles of the two inclined surfaces can be the same or different. By adjusting the lengths and inclination angles of the two inclined surfaces, the distances that the first feeding mechanism 401 and the second feeding mechanism 402 drive the strip 600 to move twice within one movement cycle can be controlled.

[0053] Optionally, the two transition surfaces 102 can be arc-shaped surfaces; alternatively, one of the two transition surfaces 102 can be an arc-shaped surface and the other can be an inclined surface.

[0054] In this example, the included angle between the transition surface 102 and the corresponding side surface 101 is an obtuse angle. This method is applicable to the state where the first push rod 405 and the second push rod 406 are closest to each other initially. When the driving mechanism 100 moves downward, the two transition surfaces 102 push the first push rod 405 and the second push rod 406 to move away from each other.

[0055] Optionally, as Figure 3 shown, the feeding device includes two driving mechanisms 100. The two driving mechanisms 100 are respectively connected to two opposite sides of the mounting plate 200. The two driving mechanisms 100 drive the first feeding mechanism 401 and the second feeding mechanism 402 from the opposite sides of the first feeding mechanism 401 and the second feeding mechanism 402. This setting method makes the feeding of the strip 600 more stable.

[0056] Optionally, as Figures 1 - 3As shown, a guide plate 309 is provided on the side of the base 300. A limiting hole is formed between the guide plate 309 and the base 300. The driving mechanism 100 slides along the limiting hole. The limiting hole can guide the sliding of the driving mechanism 100. For example, guide plates 309 are provided on two opposite sides of the base 300 to form two limiting holes. The two limiting holes are respectively used to limit the two driving mechanisms 100 to guide the sliding of the two driving mechanisms 100.

[0057] In another embodiment, the included angle between the two transition surfaces 102 of the driving mechanism 100 and the corresponding side surfaces 101 is an acute angle. That is, the bottom of the driving mechanism 100 forms a concave trapezoidal structure. This method is applicable to the state where the first push rod 405 and the second push rod 406 are initially the farthest from each other. When the driving mechanism 100 moves downward, the two transition surfaces 102 push the first push rod 405 and the second push rod 406 closer to each other. When the driving mechanism 100 moves upward, under the action of an external force, the first push rod 405 and the second push rod 406 move away from each other along the corresponding transition surfaces 102. This setting method can also realize that within one movement cycle of the first feeding mechanism 401 and the second feeding mechanism 402, the tape 600 is fed along the first direction twice.

[0058] Optionally, at least one of the transition surfaces 102 can also be an arc surface.

[0059] In yet another embodiment, the above trapezoidal structure or concave trapezoidal structure can also be a triangular structure.

[0060] In an embodiment of the present invention, the driving mechanism 100 further includes an elastic reset member, and the elastic reset member is adapted to drive the sliders of the first feeding mechanism 401 and the second feeding mechanism 402 to approach or move away from each other.

[0061] As Figure 5 、 Figure 6 shown, when the initial positions of the first slider 403 and the second slider 404 are in the state of being closest to each other, the elastic reset member is used to return the first slider 403 and the second slider 404 from the state of moving away from each other to the initial position. When the initial positions of the first slider 403 and the second slider 404 are in the state of being farthest from each other, the elastic reset member is used to return the first slider 403 and the second slider 404 from the state of approaching each other to the initial position.

[0062] In this embodiment, the elastic reset member includes a first spring 103 and a second spring 104. The side wall of the base 300 is provided with a first spring cavity 305 and a second spring cavity 306. For example, the first spring cavity 305 and the second spring cavity 306 are provided on the intermediate plate 3002. The first spring cavity 305 and the second spring cavity 306 are oppositely arranged in the first direction. The first spring 103 is located in the first spring cavity 305. The first spring 103 abuts against the first slider 403. The opening of the first spring cavity 305 is sealed by a screw. The screw can also adjust the elastic force of the first spring 103. The second spring 104 is located in the second spring cavity 306. The second spring 104 abuts against the second slider 404. The opening of the second spring cavity 306 is sealed by a screw. The screw can also adjust the elastic force of the second spring 104.

[0063] The initial positions of the first slider 403 and the second slider 404 are in the state where they are closest to each other. When the driving mechanism 100 moves downward, the two transition surfaces 102 push the first push rod 405 and the second push rod 406 away from each other from the initial positions. The first feeding mechanism 401 drives the tape 600 to feed in the first direction. When the driving mechanism 100 moves upward, under the elastic force of the first spring 103 and the second spring 104, the first push rod 405 and the second push rod 406 slide along the two transition surfaces 102 and approach each other. The first slider 403 and the second slider 404 approach each other under the action of the first push rod 405 and the second push rod 406, and finally return to the initial positions.

[0064] Of course, the elastic reset member is not limited to a spring, and can also be a spring piece, an elastic rubber member, etc.

[0065] In another embodiment, the first spring 103 and the second spring 104 can also pull the first slider 403 and the second slider 404 to make the first slider 403 and the second slider 404 return to the initial positions.

[0066] In an embodiment of the present invention, the driving mechanism 100 includes two of the elastic reset members, and the two elastic reset members are located between the two sliders, or the two sliders are located between the two elastic reset members.

[0067] In this example, there are two elastic reset members. There can be various ways of arranging the elastic reset members and the sliders. It can be that the two elastic reset members are located between the two sliders. In this way, the two elastic reset members pull the two sliders back to the initial positions.

[0068] It can also be, as Figure 5 shown, the two sliders are located between the two elastic reset members. In this way, the two elastic reset members push the two sliders back to the initial positions.

[0069] The setting manners of the elastic resetting member and the slider can be selected by those skilled in the art according to actual needs.

[0070] In an embodiment of the present invention, needle rollers 308 are arranged on the bottom surface of the sliding cavity, and the slider is in rolling cooperation with the needle rollers 308.

[0071] As Figure 4 、 Figure 5 As shown, a plurality of needle rollers 308 are arranged at the bottoms of the first sliding cavity 301 and the second sliding cavity 302. For example, the plurality of needle rollers 308 are arranged on the bottom plate 3003. The plurality of needle rollers 308 are arranged at intervals along the first direction. The axial direction of the needle rollers 308 is perpendicular to the first direction. The first slider 403 and the second slider 404 are arranged on the plurality of needle rollers 308. The needle rollers 308 are rotatably connected to the base 300. The needle rollers 308 can effectively reduce the frictional force when the first slider 403 and the second slider 404 move, so that the feeding device is more labor-saving.

[0072] It should be noted that the axial direction of the needle rollers 308 can also be an acute angle with the first direction. This way can also reduce the frictional force when the first slider 403 and the second slider 404 move.

[0073] Of course, the number and size of the needle rollers 308 are not limited herein, and those skilled in the art can set them according to actual needs.

[0074] In an embodiment of the present invention, the feeding convex portions of the first feeding mechanism 401 and the second feeding mechanism 402 are wedge-shaped protrusions, and the first inclined surface 414 of the wedge-shaped protrusion faces the incoming material side of the tape 600.

[0075] When the tape 600 is fed in the first direction, since the feeding convex portion protrudes from the upper surface 307 of the base 300, the feeding convex portion may interfere with the movement of the tape 600. In particular, when the upper surface 307 of the feeding convex portion forms a right angle with the side surface 101 of the incoming material side, it is easy to interfere with the structure on the tape 600 and block the feeding of the tape 600 in the first direction.

[0076] In this embodiment, as Figure 4 、 Figure 5As shown, the feeding protrusion of the first feeding mechanism 401 is the first wedge-shaped protrusion 411, and the feeding protrusion of the second feeding mechanism 402 is the second wedge-shaped protrusion 412. Both the first wedge-shaped protrusion 411 and the second wedge-shaped protrusion 412 include a first inclined surface 414. For example, chamfers are made on the first feeding protrusion and the second feeding protrusion to form the first inclined surface 414. The first inclined surface 414 faces the incoming material side of the strip 600, that is, the left side. When the strip 600 moves in the first direction, the first inclined surface 414 will not interfere with the strip 600, thereby making the feeding of the strip 600 smoother.

[0077] Optionally, the angle of the first inclined surface 414 of the first wedge-shaped protrusion 411 is the same as or different from the angle of the first inclined surface 414 of the second wedge-shaped protrusion 412. When the angles of the two first inclined surfaces 414 are the same, the processing of the first feeding protrusion and the second feeding protrusion is easy. When the angles of the two first inclined surfaces 414 are different, the feeding requirements of strips 600 with different structures can be met.

[0078] Of course, the angle of the first inclined surface 414 is not limited herein, and those skilled in the art can select it according to actual needs.

[0079] In an embodiment of the present invention, the wedge-shaped protrusion includes a straight edge perpendicular to the first direction, and the straight edge faces the discharging side of the strip 600.

[0080] In this embodiment, as Figure 4 、 Figure 5 shown, a plurality of holes arranged along the extension direction of the strip 600 are usually provided on the surface of the strip 600. For example, the holes are formed by stamping. During feeding, a part of the wedge-shaped protrusion enters the holes. Since the straight edge is perpendicular to the first direction and faces the discharging side of the strip 600, that is, the right side, the straight edge, especially the part of the straight edge close to the upper surface 307, is likely to abut against the side wall of the hole, so that the strip 600 is subjected to a force in the first direction. The setting of the straight edge can prevent the wedge-shaped protrusion from slipping out of the holes in the strip 600 when the wedge-shaped protrusion applies a force to the holes in the strip 600. This makes the action of the wedge-shaped protrusion on the strip 600 more effective and improves the reliability of feeding the strip 600.

[0081] In an embodiment of the present invention, the first feeding mechanism 401 and the second feeding mechanism 402 further include a swing arm and a first elastic member. The swing arm is rotatably connected to the slider, the feeding protrusion is provided on the swing arm, and the first elastic member is adapted to drive the feeding protrusion to move in a direction away from the slider.

[0082] In this embodiment, as Figure 4 、 Figure 5As shown in the figure, a first groove 407 is provided at the top of the first slider 403. A first swing arm 409 is rotatably connected in the first groove 407 through a rotating shaft. The rotating shaft is located at one end of the first swing arm 409. A first wedge-shaped protrusion 411 is provided at the other end of the first swing arm 409. For example, the first wedge-shaped protrusion 411 is perpendicular to the first swing arm 409. The first wedge-shaped protrusion 411 and the whole of the first swing arm 409 are in an L shape. A receiving groove is provided at the bottom of the first groove 407. A first elastic member is provided in the receiving groove. The first elastic member is a third spring 413. The third spring 413 forms an elastic force on the first swing arm 409 and / or the first wedge-shaped protrusion 411 to keep the first wedge-shaped protrusion 411 protruding from the upper surface 307 of the base 300. Since the third spring 413 can be compressed, when a downward acting force of the tape 600 is received, the swing arm swings into the first groove 407, reducing the interference of the first wedge-shaped protrusion 411 on the tape 600, thereby facilitating the movement of the tape 600.

[0083] A second groove 408 is provided at the top of the second slider 404. A second swing arm 410 is rotatably connected in the second groove 408 through a rotating shaft. The rotating shaft is located at one end of the second swing arm 410. A second wedge-shaped protrusion 412 is provided at the other end of the second swing arm 410. For example, the second wedge-shaped protrusion 412 is perpendicular to the second swing arm 410. The second wedge-shaped protrusion 412 and the whole of the second swing arm 410 are in an L shape. A receiving groove is provided at the bottom of the second groove 408. A second elastic member is provided in the receiving groove. The second elastic member is a third spring 413. The third spring 413 forms an elastic force on the second swing arm 410 and / or the second wedge-shaped protrusion 412 to keep the second wedge-shaped protrusion 412 protruding from the upper surface 307 of the base 300. Since the third spring 413 can be compressed, when a downward acting force of the tape 600 is received, the swing arm swings into the second groove 408, reducing the interference of the second wedge-shaped protrusion 412 on the tape 600, thereby facilitating the movement of the tape 600.

[0084] The setting of the swing arm and the first elastic member can keep the feeding protrusion elastically protruding from the upper surface 307 of the base 300. In this way, when the feeding protrusion feeds, it is easy for the feeding protrusion to form a pushing action on the tape 600. When a force of the tape 600 is received, the first elastic member can be compressed, thereby reducing the height of the feeding protrusion protruding from the upper surface 307 of the base 300. In this way, when another feeding protrusion feeds, the interference of this feeding protrusion on the feeding of the tape 600 is reduced, which is beneficial to the feeding of the tape 600.

[0085] In an embodiment of the present invention, the feeding device further includes a limiting mechanism 500. The limiting mechanism 500 includes a limiting seat 501 and an abutting portion 504. The limiting seat 501 is spaced apart from the base 300. The abutting portion 504 is provided on the limiting seat 501, and the abutting portion 504 is adapted to elastically abut against the tape 600.

[0086] In this embodiment, as Figure 2 , Figure 4 , Figure 5 shown, the limiting seat 501 is a plate-like structure. The limiting seat 501 is parallel to the base 300 and they are spaced apart. For example, the limiting seat 501 is mounted on the base 300 through a connecting column 503. A gap is formed between the base 300 and the limiting seat 501. This gap allows the tape 600 to pass through. A first through hole is provided on the limiting seat 501. The abutting portion 504 is slidably disposed in the first through hole. For example, the abutting portion 504 is a columnar structure. The abutting portion 504 elastically abuts against the tape 600. The elastic abutment increases the frictional force between the abutting portion 504 and the tape 600, and can effectively prevent the tape 600 from jumping when subjected to a large acting force.

[0087] The elastic abutment can be that the abutting portion 504 is made of an elastic material. The abutting portion 504 relies on its own elastic deformation when abutting against the tape 600, so as to form a large frictional force with the tape 600.

[0088] Or, the abutting portion 504 is made of a rigid material. The limiting mechanism 500 further includes a fourth spring 505. A mounting bracket 502 is mounted on the limiting seat 501. The fourth spring 505 is mounted on the mounting bracket 502. The fourth spring 505 abuts against the abutting portion 504. The fourth spring 505 provides an elastic force for the abutting portion 504. Through the elastic deformation of the fourth spring 505, a large frictional force is formed between the abutting portion 504 and the tape 600.

[0089] Of course, the way of elastic abutment is not limited to the above embodiments, and those skilled in the art can set it according to actual needs.

[0090] In an embodiment of the present invention, the limiting mechanism 500 further includes a check portion 506 and a second elastic member. The check portion 506 is slidably disposed on the limiting seat 501, and the second elastic member is adapted to drive the check portion 506 close to the tape 600.

[0091] In this embodiment, as Figure 4As shown, the check portion 506 can prevent the tape 600 from moving in the opposite direction of the first direction. A second through hole is provided on the limit seat 501. The check portion 506 is a columnar structure. The check portion 506 is slidably disposed in the second through hole. The second elastic member includes a fifth spring 507. The fifth spring 507 is fixed on the mounting bracket 502. The fifth spring 507 abuts against the check portion 506 so that the bottom end of the check portion 506 can be inserted into the corresponding structure of the tape 600 to form a blockage of the tape 600 and prevent the tape 600 from moving in the opposite direction of the first direction.

[0092] Optionally, the second elastic member can also be a shrapnel, an elastic rubber member, etc.

[0093] It should be noted that, in order to prevent the check portion 506 and the abutting portion 504 from slipping off the limit seat 501, the check portion 506 and the abutting portion 504 have large-diameter heads.

[0094] In an embodiment of the present invention, a second inclined surface 5061 is provided at the end of the check portion 506, and the second inclined surface 5061 faces the incoming material end of the limit seat 501.

[0095] In this embodiment, as Figure 4 shown, the bottom end of the check portion 506 forms the second inclined surface 5061 by making a chamfer. The second inclined surface 5061 faces the incoming material section of the limit seat 501, that is, the left end. When the tape 600 moves in the first direction, the second inclined surface 5061 will not interfere with the tape 600, making the feeding of the tape 600 smoother.

[0096] Of course, the inclination angle of the second inclined surface 5061 is not limited herein, and those skilled in the art can set it according to actual needs.

[0097] In an embodiment of the present invention, the abutting portion 504 is located at the incoming material end of the limit seat 501.

[0098] Generally, the incoming material end of the limit seat 501 is close to the processing equipment of the previous station. Setting the abutting portion 504 at the incoming material end of the limit seat 501 can more effectively avoid adverse effects on the feeding of the tape 600 by the previous station.

[0099] In an embodiment of the present invention, two sets of the check portion 506 and the second elastic member are included, and the two sets of the check portion 506 and the second elastic member are respectively located at the incoming material end and the outgoing material end of the limit seat 501.

[0100] In this embodiment, as Figure 4As shown, check valves 506 and fifth springs 507 are provided at both the incoming end and the outgoing end of the limit seat 501. Compared with the arrangement of only providing the check valve 506 and the fifth spring 507 at one end of the limit seat 501, this arrangement can more effectively form a check function for the strip 600, prevent the strip 600 from moving in the opposite direction of the first direction, and ensure the reliability of the strip 600 feeding.

[0101] According to another embodiment of the present invention, a stamping device is provided. The stamping device includes the feeding device described in the present invention.

[0102] The stamping device has the characteristics of high feeding efficiency and high stamping efficiency.

[0103] According to still another embodiment of the present invention, a stamping device is provided. The stamping device includes the feeding device described in the embodiment of the present invention.

[0104] Specifically, as Figures 6 - 8 shown, the stamping device includes a stamping module. The stamping module includes an upper die assembly and a lower die assembly. Between the upper die assembly and the lower die assembly is used for processing the strip 600. The strip 600 is carried on the lower die assembly. By the up and down movement of the upper die assembly, the strip 600 is stamped. Among them, the upper die assembly includes an upper die base 601, an upper clamping plate 602, an upper backing plate 603, a stripping backing plate 604 and a stripping plate 605. The upper die base 601 is connected to the upper clamping plate 602. The upper clamping plate 602, the upper backing plate 603, the stripping backing plate 604 and the stripping plate 605 are arranged and connected in sequence. The lower die assembly includes a lower die base 608, a lower backing plate 607 and a lower template 606. The lower backing plate 607 is arranged on the lower die base 608. The lower template 606 is arranged on the lower backing plate 607. The lower template 606 is used to contact the strip 600. The strip 600 is located between the stripping plate 605 and the lower template 606. The upper die base 601 is connected to a power mechanism. The power mechanism drives the upper die base 601, thereby driving the upper die assembly to move up and down.

[0105] The stamping device is arranged between the upper die base 601 and the lower die base 608. The base 300 is connected to the lower die base 608. The mounting plate 200 is fixed on the upper die base 601. The driving mechanism 100 moves up and down together with the upper die base 601. As described above, the driving mechanism 100 includes two relatively arranged side surfaces 101 and transition surfaces 102 respectively connected to the two side surfaces 101. The two side surfaces 101 are parallel. The two transition surfaces 102 are close to each other from the end connected to the two side surfaces 101 to the end away from the side surfaces 101. The two transition surfaces 102 respectively abut against the push rods of the first feeding mechanism 401 and the second feeding mechanism 402 to drive the two push rods.

[0106] In an embodiment of the present invention, during the process that the push rod abuts against the transition surface 102 and moves towards the side surface 101, the first feeding mechanism 401 drives the tape 600 to move in a first direction; During the process that the push rod abuts against the side surface 101 and moves away from the transition surface 102, the stamping device stamps the tape 600; During the process that the push rod abuts against the transition surface 102 and moves away from the side surface 101, the second feeding mechanism 402 drives the tape 600 to move in a first direction.

[0107] Specifically, one stamping process of the stamping device includes a mold opening process and a mold closing process. The mold closing process refers to the process that the stamping device transitions from the mold opening state to the mold closing state. During the mold closing process, one feeding and stamping of the tape 600 are completed. The mold opening process refers to the process that the stamping device transitions from the mold closing state to the mold opening state. During the mold opening process, the stamping device returns to the mold opening state and completes one feeding of the tape 600. A critical state will be experienced in both of the above two processes.

[0108] The following combines Figures 6 - 8 to introduce the mold closing process. During the mold closing process, the stamping device transitions from the mold opening state through the critical state to the mold closing state. Figure 6 is a schematic diagram of the stamping device in the mold opening state according to an embodiment of the present invention. In the mold opening state, the two transition surfaces 102 of the driving mechanism 100 respectively abut against the first push rod 405 and the second push rod 406. As the upper mold base 601 presses downwards, the driving mechanism 100 moves downwards. The two transition surfaces 102 push the first push rod 405 and the second push rod 406 away from each other and move towards the side surface 101 of the driving mechanism 100 in the height direction. During this process, driven by the first push rod 405 and the second push rod 406, the first slider 403 and the second slider 404 move away from each other, and further the first wedge-shaped protrusion 411 moves in the first direction. Since the first wedge-shaped protrusion 411 enters the tape 600 and the straight edge of the first wedge-shaped protrusion 411 forms a push on the tape 600, the tape 600 is fed in the first direction driven by the first wedge-shaped protrusion 411. Since the first inclined surface 414 of the second wedge-shaped protrusion 412 faces the incoming material side of the tape 600, although the second wedge-shaped protrusion 412 moves in a direction opposite to the first direction, the second wedge-shaped protrusion 412 does not interfere with the movement of the tape 600 in the first direction.

[0109] Figure 7is a schematic diagram of a stamping device in a critical state according to an embodiment of the present invention. The critical state is a state where the first push rod 405 and the second push rod 406 reach the connection between the transition surface 102 and the side surface 101. When the critical state is reached, the distance between the first push rod 405 and the second push rod 406 reaches a maximum. After reaching the critical state, during the descent of the driving mechanism 100, the moving distance of the material strip 600 along the first direction no longer increases. The feeding process of the material strip 600 before this stamping is completed, and the material strip 600 remains stationary relative to the base 300. Next, the upper die base 601 continues to move downward to stamp the material strip 600.

[0110] Figure 8 Schematic diagram of a stamping device in a mold-closing state according to an embodiment of the present invention. After reaching the critical state, driven by the upper mold base 601, the driving mechanism 100 continues to move downward. The first push rod 405 and the second push rod 406 move along the two side surfaces 101 of the driving mechanism 100, and gradually move away from the two transition surfaces 102. Since the two side surfaces 101 are arranged in parallel in the up and down directions, the horizontal distance between the first push rod 405 and the second push rod 406 remains unchanged during the descent of the driving mechanism 100. In this way, the material strip 600 remains stationary relative to the base 300. The upper mold base 601 is pressed downward to close the mold of the stamping device, thereby completing the stamping of the material strip 600.

[0111] After the stamping is completed, the upper die seat 601 moves upward. The stamping device performs a mold opening process. In this process, the stamping device goes from a mold closing state to a critical state and then reaches a mold opening state. Figure 8 , Figure 7 and Figure 6, driven by the upper die base 601, the driving mechanism 100 moves upward. The two side surfaces 101 of the driving mechanism 100 are respectively abutted against the first push rod 405 and the second push rod 406. When passing the critical state, under the action of the first spring 103 and the second spring 104, the first push rod 405 and the second push rod 406 approach each other and are respectively abutted against the two transition surfaces 102. The first push rod 405 and the second push rod 406 gradually move away from the side surfaces 101. At this time, the second spring 104 drives the second push rod 406 to move in the first direction. Under the action of the second swing arm 410 and the first elastic member, the second wedge-shaped protrusion 412 remains inserted into the strip 600, and the straight edge of the second wedge-shaped protrusion 412 forms a push on the strip 600. Therefore, the strip 600 is fed in the first direction driven by the second wedge-shaped protrusion 412. Since the first inclined surface 414 of the first wedge-shaped protrusion 411 faces the incoming material side of the strip 600, although the first wedge-shaped protrusion 411 moves in the direction opposite to the first direction, the first wedge-shaped protrusion 411 does not interfere with the movement of the strip 600 in the first direction. That is to say, during the mold opening process, due to the pushing action of the second wedge-shaped protrusion 412 on the strip 600, the strip 600 continues to be fed until the stamping device reaches the mold opening state.

[0112] It can be seen that during the stamping process of the stamping device, the first feeding mechanism 401 and the second feeding mechanism 402 can respectively push the strip 600 so that the strip 600 is fed twice. The stamping device has the characteristics of large feeding pitch and fast feeding speed.

[0113] In the above embodiments, the differences between the embodiments are mainly described. As long as the different optimization features between the embodiments are not contradictory, they can be combined to form a more optimal embodiment. For the sake of brevity, it will not be elaborated here.

[0114] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration purposes and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A feeding device, characterized in that, include: A base (300), the base (300) being provided with a sliding cavity, and an upper surface (307) of the base (300) being suitable for carrying a material strip (600); A first feeding mechanism (401) and a second feeding mechanism (402), wherein the first feeding mechanism (401) and the second feeding mechanism (402) comprise a slider and a feeding protrusion, wherein the feeding protrusion is arranged on the slider, and the slider is slidably arranged in the sliding cavity, and the feeding protrusion can protrude from the upper surface (307) of the base (300) and contact the material belt (600); as well as A driving mechanism (100), wherein the driving mechanism (100) is suitable for driving the first feeding mechanism (401) and the second feeding mechanism (402) to move closer to and farther from each other, and when the first feeding mechanism (401) and the second feeding mechanism (402) move away from each other, the feeding protrusion of the first feeding mechanism (401) drives the material belt (600) to move in a first direction; when the first feeding mechanism (401) and the second feeding mechanism (402) move closer to each other, the feeding protrusion of the second feeding mechanism (402) drives the material belt (600) to move in the first direction.

2. The feeding device according to claim 1, wherein The first feeding mechanism (401) and the second feeding mechanism (402) further include a push rod, the push rod being arranged on the sliding block, the base (300) being provided with a strip groove, the strip groove being communicated with the sliding cavity, the push rods of the first feeding mechanism (401) and the second feeding mechanism (402) being slidably arranged in the strip groove, and the driving mechanism (100) being suitable for driving the push rods of the first feeding mechanism (401) and the second feeding mechanism (402) so as to make the first feeding mechanism (401) and the second feeding mechanism (402) approach and move away from each other.

3. The feeding device according to claim 2, characterized in that, The driving mechanism (100) comprises two side surfaces (101) arranged opposite to each other and transition surfaces (102) respectively connected to the two side surfaces (101); the two side surfaces (101) are parallel; the two transition surfaces (102) approach each other from an end connected to the two side surfaces (101) to an end facing away from the side surfaces (101); the two transition surfaces (102) respectively abut against push rods of the first feeding mechanism (401) and the second feeding mechanism (402) to drive the two push rods.

4. The feeding device according to claim 1, characterized in that, The driving mechanism (100) further comprises an elastic reset member, wherein the elastic reset member is suitable for driving the sliders of the first feeding mechanism (401) and the second feeding mechanism (402) to move closer to or farther from each other.

5. The feeding device according to claim 4, characterized in that, It comprises two elastic reset members, the two elastic reset members are located between the two sliding blocks, or the two sliding blocks are located between the two elastic reset members.

6. The feeding device according to claim 1, characterized in that, A rolling needle (308) is arranged on the bottom surface of the sliding cavity, and the sliding block and the rolling needle (308) are in rolling cooperation.

7. The feeding device according to claim 1, characterized in that, The feeding convex portions of the first feeding mechanism (401) and the second feeding mechanism (402) are wedge-shaped protrusions. The first inclined surface (414) of the wedge-shaped protrusion faces the incoming material side of the strip (600). The wedge-shaped protrusion includes a straight edge perpendicular to the first direction, and the straight edge faces the outgoing material side of the strip (600).

8. The feeding device according to claim 1, characterized in that, The first feeding mechanism (401) and the second feeding mechanism (402) further include swing arms and first elastic members. The swing arms are rotatably connected to the sliders. The feeding convex portions are arranged on the swing arms. The first elastic members are adapted to drive the feeding convex portions to move in a direction away from the sliders.

9. The feeding device according to claim 1, characterized in that It further includes a limiting mechanism (500). The limiting mechanism (500) includes a limiting seat (501) and an abutting portion (504). The limiting seat (501) is arranged at an interval from the base (300). The abutting portion (504) is arranged on the limiting seat (501). The abutting portion (504) is adapted to elastically abut against the strip (600).

10. The feeding device according to claim 9, characterized in that, The limiting mechanism (500) further includes a check portion (506) and a second elastic member. The check portion (506) is slidably arranged on the limiting seat (501). The second elastic member is adapted to drive the check portion (506) to approach the strip (600).

11. The feeding device according to claim 10, characterized in that, A second inclined surface (5061) is arranged at the end of the check portion (506). The second inclined surface (5061) faces the incoming material end of the limiting seat (501).

12. The feeding device according to claim 10, characterized in that, There are two sets of the check portions (506) and the second elastic members. The two sets of the check portions (506) and the second elastic members are respectively located at the incoming material end and the outgoing material end of the limiting seat (501).

13. A stamping device, characterized in that, It includes the feeding device according to any one of claims 1-12.

14. A stamping device, characterized in that, It includes the feeding device according to claim 3. During the process that the push rod abuts against the transition surface (102) and moves in a direction close to the side surface (101), the first feeding mechanism (401) drives the strip (600) to move in the first direction. During the process that the push rod abuts against the side surface (101) and moves in a direction away from the transition surface (102), the stamping device stamps the strip (600). During the process that the push rod abuts against the transition surface (102) and moves in a direction away from the side surface (101), the second feeding mechanism (402) drives the strip (600) to move in the first direction.

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