Coil material conveying transition structure and continuous die stamping apparatus

Abstract

The utility model provides a kind of roll material conveying transition structure and continuous die stamping equipment, roll material conveying transition structure includes lifting guide device;Feeding guide platform is liftable and movable and is installed on lifting guide device;Elastic reset mechanism is connected between feeding guide platform and lifting guide device, according to the feeding height adjustment guide platform along lifting guide device lifting movement of upstream equipment conveying roll material;Several guide pulleys are distributed on feeding guide platform, for guiding and transmitting roll material.The utility model provides roll material conveying transition structure using hierarchical, segmented foldable transition tool, can quickly realize the substantial and trace adjustment of the guide length of roll material conveying transition structure, meet the flexible guide demand between automatic feeder and different size stamping die, and realize the adaptive lifting adjustment and quick feeding angle adjustment of feeding guide platform, improve material guiding adjustment efficiency, and have the advantages of simple structure, easy processing, light weight and low cost.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal progressive die stamping technology, and in particular to a coil material conveying transition structure and progressive die stamping equipment. Background Technology

[0002] Existing sheet metal progressive die stamping equipment requires an automatic feeder during stamping production to ensure continuous processing of sheet metal coils and strips. Because the size and height of the stamping dies vary when stamping parts of different specifications and dimensions, gaps of varying spatial dimensions often exist at the transition between the traditional automatic feeder and the stamping die, and there is often a height difference between the coil conveyor and the stamping die.

[0003] Therefore, flexible materials such as cardboard and plastic boxes are usually used to pad the roll material and fill the gaps. However, due to the oil-absorbing properties of cardboard and plastic boxes, the surface quality of the raw materials becomes abnormal during the roll material transport process. Furthermore, manually adjusting the height of the cardboard and plastic boxes requires visual judgment of the amount of cardboard and plastic boxes used, making it difficult to accurately adjust the height and accuracy of the roll material transport after padding. In addition, the manual padding adjustment method results in long downtime and low efficiency for debugging. Utility Model Content

[0004] This utility model proposes a coil conveying transition structure and a progressive die stamping equipment to solve the technical problem that traditional progressive die stamping equipment uses manual padding of flexible materials to fill the gap in coil conveying between the automatic feeder and the stamping die, which reduces the accuracy and efficiency of coil conveying.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] This utility model provides a roll material conveying transition structure, including:

[0007] Lifting and guiding device;

[0008] The feeding guide platform is movably and liftably installed on the lifting guide device;

[0009] The elastic reset mechanism is connected between the feeding guide platform and the lifting guide device. It adjusts the lifting and lowering movement of the guide platform along the lifting guide device according to the feeding height of the coil conveyed by the upstream equipment.

[0010] Several guide pulleys are distributed on the feeding guide platform to guide and transport the roll material.

[0011] Preferably, the lifting guide device includes: a support frame, the support frame including a plurality of guide vertical rods;

[0012] The feeding guide platform includes: several lifting slides, which are movably mounted on corresponding guide vertical rods; and a platform assembly, which is mounted on the lifting slides and used to install guide pulleys.

[0013] Furthermore, the support frame also includes: a pair of support crossbars, spaced horizontally at intervals, and a pair of guide vertical bars, which are vertically connected to the corresponding ends of the pair of support crossbars;

[0014] A pair of elastic reset mechanisms are connected between the lifting slide and the support crossbar corresponding to a pair of guide vertical rods.

[0015] Preferably, the elastic reset mechanism is a spring reset mechanism sleeved on the guide rod.

[0016] Preferably, the platform components include:

[0017] The first extension platform is connected to the lifting slide and extends along the feeding direction of the upstream equipment conveying the coil material;

[0018] The second extension platform is rotatably connected to the first extension platform;

[0019] Several guide pulleys are distributed on the first extension platform and the second extension platform.

[0020] Furthermore, the platform components also include:

[0021] The third extension platform is rotatably connected to the end of the second extension platform that is furthest from the first extension platform;

[0022] Guide pulleys are also distributed on the third extension platform.

[0023] Preferably, the first extension platform includes:

[0024] The horizontal frame includes a pair of horizontal borders parallel to the support crossbar and a pair of vertical borders perpendicular to the support crossbar. The pair of horizontal borders and the pair of vertical borders are connected end to end to form a horizontally set horizontal frame. The two corners of the rectangular frame corresponding to the horizontal border located upstream in the feeding direction are respectively connected to the lifting slide corresponding to a pair of guide vertical bars.

[0025] Several longitudinal links are connected at intervals between a pair of transverse frames and are parallel to the longitudinal frames.

[0026] Preferably, one end of the longitudinal connecting rod is connected to the transverse frame of the rectangular frame corresponding to the upstream side in the feeding direction, and the other end of the longitudinal connecting rod passes through the cross joint of the transverse frame of the rectangular frame corresponding to the downstream side in the feeding direction and extends out of the rectangular frame.

[0027] One end of the second extension platform can be flipped to connect to the end of each longitudinal link extending out of the rectangular frame.

[0028] Preferably, the second extension platform includes:

[0029] The horizontal connecting rod is parallel to the horizontal border.

[0030] Several first flip links are connected to the transverse links at intervals, matching each longitudinal link;

[0031] Several first folding joints are located at the ends of the corresponding first flipping links away from the transverse links;

[0032] One end of the second extension platform is rotatably connected to the end of each longitudinal link via each first folding joint.

[0033] Preferably, the second extension platform further includes: a plurality of extension links, spaced apart from the transverse link, and extending in the opposite direction to the first flip link;

[0034] The third extension platform includes:

[0035] Several extended frameworks;

[0036] Several second flip links are spaced and matched with each extension link to the extension frame;

[0037] Several second folding joints are located at the ends of the corresponding second flipping links away from the extension frame;

[0038] One end of the third extension platform is rotatably connected to the end of each extension link via each second folding joint.

[0039] Furthermore, the second extended platform also includes:

[0040] The ground-mounted vertical pole is connected vertically to the extension link and extends towards the ground.

[0041] The adjusting vertical rod has an adjusting joint at one end. The adjusting vertical rod can be raised and lowered to be flush with the ground vertical rod through the adjusting joint. The end of the adjusting vertical rod away from the adjusting joint extends out of the other end of the adjusting vertical rod away from the extension link, and is used to support the feeding guide platform on the ground or a fixed object.

[0042] This utility model also provides a continuous die stamping equipment, including an automatic feeder and a stamping die, and also includes the above-mentioned coil conveying transition structure. The automatic feeder is the upstream device of the coil conveying transition structure, and the stamping die is the downstream device of the coil conveying transition structure. The coil conveying transition structure is used to guide and transfer the coil between the automatic feeder and the stamping die.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] The roll material conveying transition structure provided by this utility model adopts a graded, segmented, and foldable roll material conveying transition tooling design, which can quickly realize large and small adjustments to the guide length of the roll material conveying transition structure, meeting the flexible guidance requirements between automatic feeders and stamping dies of different sizes; and through the elastic reset mechanism for adaptive and labor-saving adjustment, and the adjustment vertical rod and adjustment joint cooperating with the lifting of the ground vertical rod to realize the rapid adjustment of the feeding angle of the feeding guide platform, plus several guide pulleys for the roll material to fit the feeding guide platform, it is compatible with the use requirements of roll materials in different processes, and quickly transfers and adjusts the roll material from the automatic feeder to the stamping die, improving the efficiency of material guiding adjustment, and has the advantages of simple structure, easy processing, light weight and low cost. Attached Figure Description

[0045] To more clearly illustrate the technical solution proposed by this utility model, the present utility model will be described in detail below with reference to the embodiments and accompanying drawings. It should be understood that the embodiments and accompanying drawings described in the following detailed description are merely some embodiments of this utility model, and those skilled in the art can make changes to these drawings under the concept of this utility model.

[0046] Figure 1 A three-dimensional structural diagram of an embodiment of the roll conveying transition structure provided by this utility model. Figure 1 ;

[0047] Figure 2 A three-dimensional structural diagram of an embodiment of the roll conveying transition structure provided by this utility model. Figure 2 ;

[0048] Figure 3 for Figure 2 A magnified schematic diagram of a portion of region A in the diagram;

[0049] Figure 4 for Figure 2 A magnified schematic diagram of the local structure of region B in the diagram;

[0050] Figure 5 A front view schematic diagram of an embodiment of the roll conveying transition structure provided by this utility model;

[0051] Figure 6 A rear view schematic diagram of an embodiment of the roll conveying transition structure provided by this utility model;

[0052] Figure 7 A side view of an embodiment of the roll conveying transition structure provided by this utility model;

[0053] Figure 8 A top view schematic diagram of an embodiment of the roll conveying transition structure provided by this utility model;

[0054] Figure 9 This is a bottom view of an embodiment of the roll conveying transition structure provided by this utility model.

[0055] The main markings in the attached figures are as follows:

[0056] 1. Lifting and guiding device; 11. Support frame; 111. Guide vertical rod; 1111. Roller guide groove; 112. Support horizontal rod;

[0057] 2. Feeding guide platform; 21. First extended platform; 211. Horizontal frame; 2111. Lateral border; 2112. Vertical border; 212. Vertical link; 22. Second extended platform; 221. Lateral link; 222. First flip link; 223. Extension link; 23. Third extended platform; 231. Extension frame; 2311. Extension crossbar; 2312. Extension longitudinal bar; 232. Second flip link;

[0058] 3. Lifting slide; 31. Clearance groove; 32. Lifting roller; 33. Inclined support rod;

[0059] 4. Guide pulley; 41. Pulley assembly; 42. Outer connector;

[0060] 5. Cross joint;

[0061] 6. First folding joint;

[0062] 7. Second folding connector;

[0063] 8. Ground-mounted vertical pole;

[0064] 9. Adjust the vertical rod; 91. Adjust the joint. Detailed Implementation

[0065] To make the technical problem to be solved, the technical solution and the beneficial effects of this utility model clearer, the following description is provided in conjunction with the appendix. Figure 1-9 The present invention will be further described in detail with reference to the embodiments.

[0066] Please refer to the following: Figure 1-9 The roll conveying transition structure provided by this utility model includes:

[0067] Lifting guide device 1; feeding guide platform 2, which is movably mounted on lifting guide device 1; elastic reset mechanism (not shown in the figure), connected between feeding guide platform 2 and lifting guide device 1, which adjusts the lifting and lowering movement of guide platform along lifting guide device 1 according to the feeding height of the coil conveyed by upstream equipment; several guide pulleys 4, distributed on feeding guide platform 2, used to guide and transmit coil (not shown in the figure).

[0068] In this embodiment, the coil material is sheet metal coil or strip, preferably a coil or strip made of steel plate.

[0069] The roll material conveying transition structure provided by this utility model pulls the feeding guide platform 2 through an elastic reset mechanism connected to the lifting guide device 1. When the upstream automatic feeder unwinds and conveys the roll material forward according to the stamping step of the downstream stamping die, the roll material adheres to several guide pulleys 4 on the feeding guide platform 2 and is transmitted to the stamping die, so that the guide pulleys 4 roll together in the direction of the roll material movement, reducing the friction of the roll material transmission. By utilizing the retractable reset property of the elastic reset mechanism, the feeding guide platform 2 is pulled to move up and down in the vertical direction, realizing the adaptive height adjustment of the roll material conveying for the stamping die cavity, improving the conveying efficiency and accuracy of the roll material.

[0070] Please refer to the following: Figure 1-3 In this embodiment, the lifting guide device 1 includes:

[0071] The support frame 11 includes a plurality of guide vertical rods 111.

[0072] The feeding guidance platform 2 includes:

[0073] Several lifting slides 3 are movably mounted on corresponding guide rods 111; a platform assembly is mounted on the lifting slides 3 for mounting guide pulleys 4.

[0074] Please refer to the following: Figure 1-3 In a preferred embodiment, the support frame 11 further includes: a pair of support crossbars 112, which are horizontally spaced vertically, and a pair of guide vertical bars 111, which are vertically connected to the corresponding ends of the pair of support crossbars 112. The pair of support crossbars 112 and the pair of guide vertical bars 111 are connected end to end to form a rectangular support frame 11, which is vertically arranged perpendicular to the horizontal plane.

[0075] A pair of elastic reset mechanisms are connected between the lifting slide 3 and the support crossbar 112 corresponding to a pair of guide vertical rods 111.

[0076] Please refer to the following: Figure 1-3 In a more preferred embodiment, the elastic reset mechanism is a spring reset mechanism sleeved on the guide vertical rod 111, with one end of the spring reset mechanism abutting against the lifting slide 3 and the other end of the spring reset mechanism abutting against one of the support horizontal rods 112 located above or below.

[0077] Please refer to the following: Figure 1-3In a preferred embodiment, both the pair of supporting crossbars 112 and the pair of guide vertical bars 111 are formed using precision-machined aluminum tubing. One side of the lifting slide 3 has a clearance groove 31 that matches the shape of the guide vertical bar 111. The lifting slide 3 is movably mounted on the corresponding guide vertical bar 111 through this clearance groove 31, allowing for sliding engagement. A pair of roller guide grooves 1111 can also be spaced apart on the guide vertical bar 111. Two sets of lifting rollers 32, each matching a pair of roller guide grooves 1111, are spaced apart inside the clearance groove 31 of the lifting slide 3. The pair of lifting rollers 32 can respectively engage with the pair of roller guide grooves 1111 in a rolling and lifting engagement.

[0078] Please refer to the following: Figure 1 , 4 -8. In this embodiment, the platform components include:

[0079] The first extension platform 21 is connected to the lifting slide 3 and extends along the feeding direction of the upstream equipment conveying the coil material; the second extension platform 22 is rotatably connected to the first extension platform 21.

[0080] Several guide pulleys 4 are distributed on the first extension platform 21 and the second extension platform 22.

[0081] Please refer to the following: Figure 1 , 4 -8. In this embodiment, the platform components also include:

[0082] The third extension platform 23 is rotatably connected to the end of the second extension platform 22 away from the first extension platform 21.

[0083] Guide pulleys 4 are also distributed on the third extension platform 23.

[0084] Please refer to the following: Figure 1 , 4 -8, In this embodiment, the first extension platform 21 includes:

[0085] The horizontal frame 211 includes a pair of transverse sidewalls 2111 parallel to the support crossbar 112 and a pair of longitudinal sidewalls 2112 perpendicular to the support crossbar 112. The pair of transverse sidewalls 2111 and the pair of longitudinal sidewalls 2112 are connected end to end to form a horizontally set horizontal frame 211. The two corners of the rectangular frame corresponding to the transverse sidewalls 2111 located upstream in the feeding direction are respectively connected to the lifting slides 3 corresponding to the pair of guide vertical bars 111. Several longitudinal connecting rods 212 are connected between the pair of transverse sidewalls 2111 at intervals and are parallel to the longitudinal sidewalls 2112.

[0086] Please refer to the following: Figure 1 , 4-8. In a preferred embodiment, the lifting slide 3 is provided in two sets. Each set includes two lifting slides 3 installed adjacent to each other on the corresponding guide rods 111. The two corners of the rectangular frame corresponding to the horizontal frame 2111 located upstream in the feeding direction are respectively connected to the upper lifting slide 3 of each set. The lower lifting slide 3 of each set is connected to the corresponding vertical frame 2112 through the inclined support rod 33.

[0087] Please refer to the following: Figure 1 , 4 -8. In a preferred embodiment, one end of the longitudinal connecting rod 212 is connected to the transverse frame 2111 of the rectangular frame corresponding to the upstream side in the feeding direction, and the other end of the longitudinal connecting rod 212 passes through the cross joint 5 provided on the transverse frame 2111 of the rectangular frame corresponding to the downstream side in the feeding direction and extends out of the rectangular frame. The longitudinal connecting rod 212 and the transverse frame 2111 are connected by the cross joint 5, which allows for flexible adjustment of the length and width of the transverse frame 2111 in the feeding direction (i.e., adjusting the extension length and width of the first extension platform 21), thereby improving the material guiding adjustment efficiency.

[0088] In other embodiments, the cross joint 5 can also be replaced by other joints that can connect two perpendicular rods.

[0089] One end of the second extension platform 22 is rotatably connected to the end of each longitudinal link 212 extending out of the rectangular frame.

[0090] Please refer to the following: Figure 1 , 4 -8, In this embodiment, the second extension platform 22 includes:

[0091] A transverse link 221 is parallel to the transverse frame 2111; a plurality of first flip links 222 are matched with each longitudinal link 212 and are spaced apart from the transverse link 221; a plurality of first folding joints 6 are provided at the ends of the corresponding first flip links 222 away from the transverse link 221.

[0092] One end of the second extension platform 22 is rotatably connected to the end of each longitudinal link 212 via each first folding joint 6.

[0093] Please refer to the following: Figure 1 , 4 -8, In a preferred embodiment, the second extension platform 22 further includes:

[0094] Several extension links 223 are spaced apart from the transverse link 221 and extend in the opposite direction to the first flip link 222.

[0095] The third extension platform 23 includes:

[0096] A plurality of extension frames 231; a plurality of second flip links 232, which are spaced apart and matched with each extension link 223; a plurality of second folding joints 7, which are located at the ends of the corresponding second flip links 232 away from the extension frames 231.

[0097] One end of the third extension platform 23 is rotatably connected to the end of each extension link 223 via each second folding joint 7.

[0098] Please refer to the following: Figure 1 , 4 -8. In a more preferred embodiment, the second extension platform 22 further includes:

[0099] The ground vertical rod 8 is vertically connected to the extension link 223 and extends towards the ground; the adjusting vertical rod 9 has an adjusting joint 91 at one end, and the adjusting vertical rod 9 can be raised and lowered flush with the ground vertical rod 8 through the adjusting joint 91. The other end of the adjusting vertical rod 9 away from the adjusting joint 91 extends out of the adjusting vertical rod 9 away from the extension link 223, and is used to support the feeding guide platform 2 on the ground or a fixed object (such as a support table).

[0100] The adjusting vertical rod 9 is vertically and flexibly connected to the ground vertical rod 8 via the adjusting joint 91. When the end (bottom) of the adjusting vertical rod 9 contacts the bottom surface, the height of the adjusting vertical rod 9 and the ground vertical rod 8 changes, thereby forming a certain angle between the feeding guide platform 2 and the ground. This allows for quick adjustment of the angle of the feeding guide platform 2 relative to the ground, thus guiding the coil material to be fed upwards or downwards at a certain angle, improving the applicability of the coil material conveying transition structure.

[0101] Please refer to the following: Figure 1 , 4 -8. In a preferred embodiment, the extension links 223 are divided into several groups, each group including two extension links 223 spaced apart from the transverse links 221. The second flip links 232 are also divided into several groups, each group including two second flip links 232.

[0102] Extended framework 231 includes:

[0103] An extension crossbar 2311 is set parallel to the transverse connecting rod 221, and its length matches the spacing between the two extension connecting rods 223 in each group; a pair of sliding joints are respectively connected to the two ends of the extension crossbar 2311; an extension longitudinal rod 2312 is vertically connected to the extension crossbar 2311 and extends in the direction away from the transverse connecting rod 221.

[0104] The extension frame 231 is slidably connected to the two second flip links 232 of each group via a pair of sliding joints, so that the third extension platform 23 can be telescopically adjusted relative to the second extension platform 22 along the second flip links 232 to change its length.

[0105] Please refer to the following: Figure 1-8 In this embodiment, the guide pulley 4 includes a pulley assembly 41 and an outer connector 42. The pulley assembly 41 is locked to the length direction of the corresponding rods or frames of the first extension platform 21, the second extension platform 22 and the third extension platform 23 through the outer connector 42. After the coil is fed out from the automatic feeder, the lower surface of the coil passes through the upper surface of the pulley of the pulley assembly 41, driving the pulley to roll around the bearing of the pulley assembly 41, thereby realizing the smooth guiding and feeding of the coil from the automatic feeder to the cavity of the stamping die.

[0106] In this embodiment, the first extension platform 21, the second extension platform 22 and the third extension platform 23 are all made of LCIA aluminum lean tubing, which has the advantages of easy processing, light weight and low cost.

[0107] Please refer to the following: Figure 1-9 The roll material conveying transition structure provided by this utility model is provided with a first extension platform 21, a second extension platform 22 and a third extension platform 23 in sequence along the feeding direction of the roll material conveyed by the upstream equipment. The first extension platform 21 and the second extension platform 22, the third extension platform 23 and the second extension platform 22 are all connected by folding joints that can be flipped. The length of the third extension platform 23 itself can be adjusted by sliding joints, and the sliding joints can stop at any position according to actual needs.

[0108] Therefore, this invention can quickly achieve large and small adjustments to the guide length of the coil conveying transition structure, meeting the flexible guiding requirements between automatic feeders and stamping dies of different sizes. It also features adaptive, labor-saving adjustment via an elastic reset mechanism, and rapid adjustment of the feeding angle of the feeding guide platform 2 through the lifting and lowering cooperation of the adjusting vertical rod 9 and adjusting joint 91 with the ground vertical rod 8. This allows for compatibility with the needs of coil materials used in different processes, achieving rapid coil adjustment and feeding guidance, improving guiding adjustment efficiency, and offering advantages such as simple structure, easy processing, light weight, and low cost. Furthermore, it improves the cleanliness of the continuous die stamping site and the safety of production operations.

[0109] This utility model also provides a continuous die stamping equipment, including an automatic feeder (not shown in the figure) and a stamping die (not shown in the figure), and also includes the above-mentioned coil conveying transition structure. The automatic feeder is the upstream device of the coil conveying transition structure, and the stamping die is the downstream device of the coil conveying transition structure. The coil conveying transition structure is used to guide and transfer the coil between the automatic feeder and the stamping die.

[0110] The continuous die stamping equipment provided by this utility model, combined with the on-site use conditions of the automatic feeder, and based on the measured data such as the height and width of the stamping die, adopts a graded, segmented, and foldable design to manufacture a coil material conveying transition structure constructed from LCIA aluminum lean tubes as a transition tooling for coil material conveying. After testing, it can reduce the material guide switching and adjustment time by 28.6 hours / month and reduce the labor intensity of employees by 17%, and is suitable for large-scale production of continuous die stamping production lines.

[0111] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Those skilled in the art should understand that any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A roll material conveying transition structure, characterized in that, include: Lifting and guiding device (1); The feeding guide platform (2) is movably and vertically mounted on the lifting guide device (1); An elastic reset mechanism is connected between the feeding guide platform (2) and the lifting guide device (1) to adjust the lifting and lowering movement of the guide platform along the lifting guide device (1) according to the feeding height of the coil conveyed by the upstream equipment. Several guide pulleys (4) are distributed on the feeding guide platform (2) to guide and transport the roll material.

2. The roll conveying transition structure as described in claim 1, characterized in that, The lifting guide device (1) includes: a support frame (11), the support frame (11) including a plurality of guide vertical rods (111); The feeding guide platform (2) includes: a plurality of lifting slides (3), which are movably mounted on corresponding guide vertical rods (111); and a platform assembly mounted on the lifting slides (3) for mounting the guide pulleys (4).

3. The roll conveying transition structure as described in claim 2, characterized in that, The support frame (11) further includes: a pair of support crossbars (112) arranged horizontally at intervals, and a pair of guide vertical bars (111) vertically connected to the corresponding ends of the pair of support crossbars (112); A pair of elastic reset mechanisms are connected between the lifting slide (3) corresponding to a pair of guide vertical rods (111) and the support horizontal rod (112).

4. The roll conveying transition structure as described in claim 3, characterized in that, The elastic reset mechanism is a spring reset mechanism sleeved on the guide vertical rod (111).

5. The roll conveying transition structure as described in claim 3 or 4, characterized in that, The platform components include: The first extension platform (21) is connected to the lifting slide (3) and extends along the feeding direction of the upstream equipment conveying the coil material; The second extension platform (22) is rotatably connected to the first extension platform (21); Several of the guide pulleys (4) are distributed on the first extension platform (21) and the second extension platform (22).

6. The roll conveying transition structure as described in claim 5, characterized in that, The platform components also include: The third extension platform (23) is rotatably connected to the end of the second extension platform (22) away from the first extension platform (21); The guide pulleys (4) are also distributed on the third extension platform (23).

7. The roll conveying transition structure as described in claim 6, characterized in that, The first extension platform (21) includes: The horizontal frame (211) includes a pair of horizontal side frames (2111) parallel to the support crossbar (112) and a pair of vertical side frames (2112) perpendicular to the support crossbar (112). The pair of horizontal side frames (2111) and the pair of vertical side frames (2112) are connected end to end to form the horizontal frame (211) set horizontally. The two corners of the rectangular frame corresponding to the horizontal side frame (2111) located upstream in the feeding direction are respectively connected to the lifting slide (3) corresponding to the pair of guide vertical bars (111). Several longitudinal links (212) are connected at intervals between a pair of transverse frames (2111) and are parallel to the longitudinal frames (2112).

8. The roll conveying transition structure as described in claim 7, characterized in that, One end of the longitudinal connecting rod (212) is connected to the horizontal frame (2111) of the rectangular frame located upstream of the feeding direction, and the other end of the longitudinal connecting rod (212) passes through the cross joint (5) of the horizontal frame (2111) located downstream of the feeding direction and extends out of the rectangular frame. One end of the second extension platform (22) is rotatably connected to the end of each longitudinal link (212) extending out of the rectangular frame.

9. The roll conveying transition structure as described in claim 8, characterized in that, The second extension platform (22) includes: A transverse link (221) is parallel to the transverse frame (2111); A plurality of first flip links (222) are spaced apart from each of the longitudinal links (212) and connected to the transverse link (221); A plurality of first folding joints (6) are provided at the ends of the first flipping link (222) away from the transverse link (221); One end of the second extension platform (22) is rotatably connected to the end of each longitudinal link (212) via each of the first folding joints (6).

10. The roll conveying transition structure as described in claim 9, characterized in that, The second extension platform (22) further includes: a plurality of extension links (223), which are spaced apart from the transverse link (221) and extend in the opposite direction to the first flip link (222); The third extension platform (23) includes: Several extended frameworks (231); A plurality of second flip links (232) are spaced apart from each of the extension links (223) and connected to the extension frame (231); Several second folding joints (7) are provided at the ends of the corresponding second flip link (232) away from the extension frame (231); One end of the third extension platform (23) is rotatably connected to the end of each extension link (223) via each of the second folding joints (7).

11. The roll conveying transition structure as described in claim 10, characterized in that, The second extension platform (22) also includes: The ground-mounted vertical pole (8) is vertically connected to the extension link (223) and extends toward the ground; An adjusting vertical rod (9) is provided at one end with an adjusting connector (91). The adjusting vertical rod (9) is connected to the ground vertical rod (8) in a height-lowering manner through the adjusting connector (91). The end of the adjusting vertical rod (9) away from the adjusting connector (91) extends out of the other end of the adjusting vertical rod (9) away from the extension connecting rod (223) and is used to support the feeding guide platform (2) on the ground or a fixed object.

12. A progressive die stamping apparatus, comprising an automatic feeder and a stamping die, characterized in that, It also includes a coil conveying transition structure as described in any one of claims 1-9, wherein the automatic feeder is an upstream device of the coil conveying transition structure, the stamping die is a downstream device of the coil conveying transition structure, and the coil conveying transition structure is used to guide and transfer the coil between the automatic feeder and the stamping die.

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