Soup ladle handle lining part reel pipe continuous stamping die

Abstract

The utility model discloses a continuous stamping die for a ladle handle lining part reelpipe, which relates to the technical field of dies, is used for stamping a strip-shaped stainless steel material belt into a plurality of reelpipes, and the reelpipes are rectangular when unfolded, and comprises a lower die, an upper die and a lower die, a second punching groove hole, a third punching groove hole, a first groove, a first through hole, a second groove and a second through hole are sequentially formed in the top face of the lower die body in the length direction of the lower die body. The trouble that plates needed for forming and edge rolling need to be cut firstly and then transferred to the die one by one for punch forming is avoided, meanwhile, the trouble that the plates are located on the die core after edge rolling, and materials need to be taken out manually or through a mechanical arm is avoided, and the production and machining efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a continuous stamping mold for a rolling tube of an inner lining part of a spoon handle. Background Art

[0002] Rolled products are widely used in modern life. The traditional process is to put the sheet metal through three processes: pre-bending, rolling and shaping.

[0003] For example, in the stamping and rolling die of the exhaust pipe heat insulation cover disclosed in the Chinese utility model patent on August 22, 2023, with the announcement number CN219560991U, the downward pressure of the upper pad will drive the nitrogen spring to descend. The nitrogen spring first presses against the mold core to drive the mold core down to the stamping spring. Then the upper pad continues to descend to apply pressure to the stamping spring to compress it. When the stamping spring is compressed to the lowest point, the mold core moves into place. At this time, the mold core moves to the lower mold to stamp the sheet material, so that the lower end of the sheet material is formed into a circular arc, and the upper pad continues to descend. At this time, the nitrogen spring will be compressed by force and gradually shortened, causing the upper mold to slowly descend to the mold core, pressing the sheet material to fit the upper surface of the mold core, thereby completing the rolling of the sheet material.

[0004] The forming mold has the following defects when in use: the plates required for forming need to be cut first and then transferred one by one to the mold for stamping and forming. In addition, the plates are rolled up and are on the mold core, and the materials need to be taken out manually or by a robot, resulting in low production and processing efficiency. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a continuous stamping die for rolling the inner lining of a soup spoon handle, so as to solve the problem that the plate required for rolling by the existing forming mold needs to be cut first and then transferred one by one to the mold for stamping and forming. In addition, after the plate is rolled, it is on the mold core and the material needs to be taken out manually or by a robot, resulting in low production and processing efficiency.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a continuous stamping die for rolling tubes of a lining part of a spoon handle, which is used to stamp a long stainless steel strip into a plurality of rolled tubes, and the rolled tubes are rectangular when unfolded, comprising:

[0007] A lower mold, wherein the top surface of the lower mold is provided with a second notch hole, a third notch hole, a first groove, a first through hole, a second groove and a second through hole in sequence along the length direction thereof, at least two of the third notch holes are symmetrically and parallelly arranged along the center line of the length direction of the top surface of the lower mold, a first lower module is arranged in the first groove, both sides of the top surface of the first lower module are provided with a first bending surface, a third lower module is arranged in the second groove, a V-shaped groove is arranged on the top surface of the third lower module, the inner wall of the V-shaped groove is arc-shaped, two second lower modules that move toward or away from each other are arranged in the first through hole, the top surface of the second lower module is n-shaped, and two lower cutting blocks that move toward or away from each other are arranged in the second through hole;

[0008] An upper mold, wherein the bottom surface of the upper mold is provided with a second punching piece, a third punching piece, a first stamping piece, a second stamping piece, a third stamping piece and an upper cut block in sequence along its length direction, the bottom of the second stamping piece is provided with a contoured groove adapted to the second lower die block, the bottom surfaces of the third stamping piece and the upper cut block are both provided with a stamping groove adapted to the curvature of the top surface of the second lower die block, and the third stamping piece and the third lower die block form a cavity adapted to the size of the outer wall of the coil when the mold is closed;

[0009] Among them, the second punching piece and the second punching hole are used to punch out vertical grooves on the long strip of stainless steel material, and the third punching piece and the third punching hole are used to punch out horizontal grooves on the long strip of stainless steel material. Two adjacent vertical grooves and horizontal grooves cooperate to form a rectangular plate. A connecting spacer is provided between two adjacent horizontal grooves on the same side of the stainless steel material strip. The two ends of each vertical groove are respectively connected to the center position of a horizontal groove. The first lower module and the first stamping piece are used to stamp both sides of the rectangular plate to form bent edges.

[0010] Preferably, first movable columns are movably provided on both sides of the inner wall of the first through hole, one end of the first movable column passes through the lower mold and is fixedly connected to the first baffle, the first baffle and the lower mold are fixedly connected to the first elastic member, the other end of the first movable column is fixedly installed with a movable block, the second lower module is fixedly installed on the opposite side of the two movable blocks, the upper parts of the two movable blocks facing away from the side are set as inclined surfaces, and two first wedge blocks are provided on the bottom surface of the upper mold.

[0011] Preferably, second movable columns are movably provided on both sides of the inner wall of the second through hole, one end of the second movable column passes through the lower mold and is fixedly connected to the second baffle, the second baffle and the lower mold are fixedly connected to the second elastic member, the other end of the second movable column is fixedly installed with a lower cutting block, the upper parts of the two lower cutting blocks facing away from each other are both set as inclined surfaces, two second wedge blocks are provided on the bottom surface of the upper mold, and when the second elastic member is at its original length, the distance between the two lower cutting blocks is greater than the length of the rolled tube after molding.

[0012] Preferably, a first notch hole and a fourth notch hole are formed on at least one side of the top surface of the lower mold, and the center point of the fourth notch hole, the first notch hole and the center point of a third notch hole are located on the same straight line, and the bottom surface of the upper mold is provided with a first punching piece and a fourth punching piece, the first punching piece and the first notch hole are used to punch out a first notch on the long strip of stainless steel material, and the first notch is connected to both the horizontal groove and the vertical groove, and the fourth punching piece and the fourth notch hole are used to punch out a second notch on the long strip of stainless steel material, and the second notch is connected to the horizontal groove.

[0013] Preferably, the top surface of the lower mold is symmetrically provided with a plurality of spring floating pins along its length direction, and the top surface of the lower cutting block is also provided with a spring floating pin, the spring floating pin includes a third elastic member and a vertical rod, and two symmetrically arranged vertical rod outer walls are provided with limiting grooves on opposite sides, and the distance between the two symmetrical limiting grooves is greater than the width of the stainless steel strip, and the distance between the two symmetrical vertical rod outer walls is less than the width of the stainless steel strip. When the third elastic member is in its original length, the stainless steel strip is located above the lower mold, and when the third elastic member is in a fully compressed state, the stainless steel strip fits the top surface of the lower mold.

[0014] Preferably, a plurality of positioning punch holes are symmetrically provided on both sides of the top surface of the lower mold, and a plurality of positioning punch rods adapted to the positioning punch holes are symmetrically provided on both sides of the bottom surface of the upper mold.

[0015] Preferably, the angle between the bent edge and the horizontal plane of the stainless steel strip is not less than 30°.

[0016] Preferably, a third groove is provided on the top surface of the lower mold, and the third groove is located between the second groove and the second through hole. A shaping lower module adapted to the size of the third lower module is provided in the third groove, and a shaping upper module adapted to the size of the third stamping part is provided on the bottom surface of the upper mold.

[0017] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0018] The utility model completes the one-stop continuous and uninterrupted step-by-step automatic processing and production from the stainless steel material strip to the coiled tube through the setting of the continuous die. Compared with the existing forming dies, it not only avoids the trouble of cutting the plate required for forming and curling and then transferring it to the die one by one for stamping and forming, but also avoids the trouble of the plate being on the die core after being rolled and needing to be taken out manually or by a robot, thereby greatly improving the production and processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the continuous mold of the utility model;

[0020] Figure 2This is a schematic diagram of the lower mold structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the first punching slot hole, the second punching slot hole, the third punching slot hole, the fourth punching slot hole and the positioning punching hole structure on the lower die of the utility model;

[0022] Figure 4 This is a schematic diagram of the first lower module of the utility model, and the second lower module structure position when the first elastic member is in a compressed state;

[0023] Figure 5 This is a schematic diagram of the second lower module structure position when the first elastic member of the utility model is at its original length;

[0024] Figure 6 It is a schematic diagram of the position of the lower cutting block structure when the third lower module, the shaping lower module and the second elastic member on the lower mold of the utility model are in the original length compression state;

[0025] Figure 7 This is a schematic diagram of the upper mold structure of the utility model;

[0026] Figure 8 This is a schematic diagram of the top view of the stainless steel strip forming structure of the utility model;

[0027] Fig. 9 This is a schematic diagram of the main structure of the stainless steel strip forming of the utility model;

[0028] Fig.10 This is a schematic diagram of the coiled tube structure of the lining member after forming of the utility model;

[0029] Among them: 1. Lower mold; 11. First notch hole; 12. Second notch hole; 13. Third notch hole; 14. First lower module; 141. First bending surface; 15. First through hole; 151. First movable column; 152. First elastic member; 153. First baffle; 154. Movable block; 155. Second lower module; 16. Third lower module; 17. Second through hole; 171. Second movable column; 172. Second elastic member; 173. Second baffle; 174. Lower cut block; 18. Shaping lower module; 19. Fourth notch hole; 2. Upper mold ; 21. First punching part; 22. Second punching part; 23. Third punching part; 24. First stamping part; 25. Second stamping part; 251. First wedge block; 26. Third stamping part; 27. Upper cutting block; 28. Shaping upper module; 29. ​​Fourth punching part; 271. Second wedge block; 31. Cutting groove; 32. Cutting block; 4. Spring lifting pin; 51. Positioning punch; 52. Positioning punch rod; 61. First notch; 62. Vertical groove; 63. Horizontal groove; 64. Spacer; 65. Bending edge; 66. Second notch; 67. Limiting hole. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments. However, the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without making any creative work all fall within the scope of protection of the present invention.

[0031] like Figure 1-Figure 9 As shown, the utility model provides a continuous stamping die for rolling tubes of a lining part of a handle of a soup spoon, which is used for stamping a long stainless steel strip into a plurality of rolled tubes, and the rolled tubes are rectangular when unfolded, and include a lower die 1 and an upper die 2;

[0032] The top surface of the lower mold 1 is provided with a second notch hole 12, a third notch hole 13, a first groove, a first through hole 15, a second groove and a second through hole 17 in sequence along its length direction. At least two third notch holes 13 are symmetrically arranged in parallel along the center line of the length direction of the top surface of the lower mold 1. A first lower module 14 is arranged in the first groove. Both sides of the top surface of the first lower module 14 are provided with first bending surfaces 141. A third lower module 16 is arranged in the second groove. A V-shaped groove is arranged on the top surface of the third lower module 16. The inner wall of the V-shaped groove is arc-shaped. Two second lower modules 155 that move toward or away from each other are arranged in the first through hole 15. The top surface of the second lower module 155 is n-shaped. Two lower cutting blocks 174 that move toward or away from each other are arranged in the second through hole 17.

[0033] The bottom surface of the upper mold 2 is provided with a second punching piece 22, a third punching piece 23, a first punching piece 24, a second punching piece 25, a third punching piece 26 and an upper cut block 27 in sequence along its length direction. The bottom of the second punching piece 25 is provided with a contoured groove adapted to the second lower die block 155. The bottom surfaces of the third punching piece 26 and the upper cut block 27 are both provided with a punching groove adapted to the curvature of the top surface of the second lower die block 155 (so that when the third punching piece 26 and the upper cut block 27 contact with the top surface of the n-shaped plate or the coiled tube, the n-shaped plate or the coiled tube will not be deformed). When the third punching piece 26 and the third lower die block 16 are molded together, a cavity adapted to the size of the outer wall of the coiled tube is formed;

[0034] The second punching piece 22 and the second punching hole 12 are used to punch out a vertical groove 62 on the long stainless steel strip, the third punching piece 23 and the third punching hole 13 are used to punch out a transverse groove 63 on the long stainless steel strip, two adjacent vertical grooves 62 and transverse grooves 63 cooperate to form a rectangular plate, and a connecting spacer 64 is provided between two adjacent transverse grooves 63 on the same side of the stainless steel strip, and both ends of each vertical groove 62 are respectively connected to the center position of a transverse groove 63, and the first lower module 14 and the first stamping piece 24 are used to stamp both sides of the rectangular plate to form a bending edge 65;

[0035] It should be noted that the stainless steel strip can be pulled by an existing traction machine to feed the material in an equidistant stepping manner, and the upper die 2 is driven by a cylinder (not shown in the figure) to move up and down, thereby driving the second punching piece 22, the third punching piece 23, the first punching piece 24, the second punching piece 25, the third punching piece 26 and the upper cutting block 27 to move up and down;

[0036] When the inner liner needs to be rolled and formed, the stainless steel strip is first conveyed to the top of the second punching slot hole 12, and is punched by the second punching piece 22 to punch out a vertical slot 62 on the stainless steel strip. The stainless steel strip continues to move forward, and at this time, the two ends of the vertical slot 62 are located at the center of the two third punching slot holes 13. After the third punching piece 23 punches, a horizontal slot 63 is punched out on the stainless steel strip. The two vertical slots 62 cooperate with the four horizontal slots 63 to form a rectangular plate (such as Figure 8 As shown in A in the middle), the preliminary cutting work is completed. Due to the presence of the spacer 64, the rectangular plate will not be separated from the stainless steel strip at this time;

[0037] The stainless steel strip is subsequently moved forward continuously, so that the rectangular plate is located above the first lower module 14, and the two vertical sides of the rectangular plate are aligned with the first bending surface 141. After being stamped by the first stamping part 24, the two vertical sides of the rectangular plate are bent downward to form a bending edge 65 (such as Figure 8 and Fig. 9 As shown in B in the figure), it is convenient for the third stamping part 26 and the third lower die block 16 to be molded together later, and the rectangular plate can be well enclosed after being bent into an n-shape;

[0038] After the rectangular plate is bent to form the bending edge 65, the stainless steel strip continues to move forward, and the rectangular plate with the bending edge 65 moves to the top of the first through hole 15 (the second lower module 155). When the second stamping part 25 moves downward, the two second lower modules 155 move closer to each other, so that the second stamping part 25 and the second lower module 155 cooperate to complete the bending of the rectangular plate, so that it is bent into an n-shape (such as Figure 8 and Fig. 9 As shown in the middle C, then when the upper mold 2 moves upward, the two second lower modules 155 move away from each other, so that the n-shaped plate is automatically separated from the second lower module 155. At the same time, due to the existence of the bending edge 65, if the n-shaped plate is directly moved upward and separated from the second lower module 155, the bent n-shaped plate will be deformed, and the lower opening will be enlarged. By the two second lower modules 155 moving away from each other and separating from the n-shaped plate, the deformation of the bent n-shaped plate can be avoided, which is convenient for subsequent encirclement and molding.

[0039] (It should be noted that the n-shaped plate moves upward because the rectangular plate of the stainless steel strip is bent into an n-shape and is located in the first through hole 15, and the bent edge 65 of the rectangular plate is affixed to the first bending surface 141 after being bent. Therefore, when the stainless steel strip needs to be continuously moved forward, the stainless steel strip needs to be moved upward as a whole to be separated from the first through hole 15 and the first bending surface 141 and located above the lower mold 1 before the stainless steel strip can continue to move forward. Specifically, the upward movement of the stainless steel strip is achieved by the spring floating pin 4 described below);

[0040] After the rectangular plate is formed into an n-shaped plate, the stainless steel strip continues to move forward. When the n-shaped plate moves to the top of the third lower module 16, when the third stamping part 26 moves down, it cooperates with the third lower module 16 to stamp the n-shaped plate so that the two sides of the n-shaped plate are enclosed (such as Fig. 9 As shown at D in the figure), the automatic bending and forming of the inner lining tube roll is completed;

[0041] After bending and forming, the stainless steel strip continues to move forward, so that the formed coiled tube is located above the second through hole 17 and directly between the two lower cutting blocks 174, and then when the upper mold 2 moves downward, the upper cutting block 27 moves downward, and at the same time, the two lower cutting blocks 174 move closer to each other to limit and fix the coiled tube, and the upper cutting block 27 fits the top surface of the coiled tube. The upper cutting block 27 cooperates with the lower cutting block 174 to quickly and automatically cut the coiled tube from the stainless steel strip, and the cut coiled tube falls through the second through hole 17 (here, a collection box can be placed directly below the second through hole 17 to collect the coiled tube through the collection box);

[0042] Through this continuous die, a one-stop continuous and uninterrupted step-by-step automatic processing and production from stainless steel material strip to coiled tube is completed. Compared with the existing forming molds, it avoids the trouble of cutting the plates required for forming and curling and then transferring them one by one to the mold for stamping and forming. At the same time, it avoids the trouble of the plates being on the mold core after curling and needing to be taken out manually or by a robot, thereby greatly improving the production and processing efficiency.

[0043] like Figure 2 , Figure 4 , Figure 5 and Figure 7 As shown, first movable columns 151 are movably provided on both sides of the inner wall of the first through hole 15, one end of the first movable column 151 passes through the lower mold 1 and is fixedly connected to the first baffle 153, a first elastic member 152 (which can be set as a spring and sleeved on the outer periphery of the first movable column 151) is fixedly connected between the first baffle 153 and the lower mold 1, and a movable block 154 is fixedly installed on the other end of the first movable column 151, and a second lower module 155 is fixedly installed on the opposite side of the two movable blocks 154, and the upper sides of the two movable blocks 154 facing away are both set as inclined surfaces, and two first wedge blocks 251 are provided on the bottom surface of the upper mold 2;

[0044] When the upper mold 2 moves downward, the first wedge block 251 is driven to move downward. Due to the cooperation between the inclined surface of the movable block 154 and the first wedge block 251, the two first wedge blocks 251 first drive the two movable blocks 154 to move closer to each other, so that the two second lower mold blocks 155, the two first movable columns 151 and the two first blocking pieces 153 move closer to each other, so that the first elastic member 152 is squeezed and compressed. When the two second lower mold blocks 155 are fitted (that is, the two second lower mold blocks 155 are Figure 5 Status converted to Figure 4 State), the second lower module 155 and the second stamping part 25 cooperate to stamp and bend the rectangular plate into an n-shaped plate;

[0045] On the contrary, after being formed into an n-shaped plate, the upper mold 2 moves upward, driving the first wedge block 251 to gradually move upward. At this time, the first elastic member 152 gradually recovers its original length and rebounds, thereby driving the two first baffles 153 to move away from each other, and finally causing the two first movable columns 151 and the two movable blocks 154 as well as the two second lower modules 155 to move away from each other, so that the two second lower modules 155 automatically detach from the formed n-shaped plate. The overall structure is ingenious, and there is no need to use external force to detach the second lower modules 155 from the n-shaped plate.

[0046] like Figure 2 and Figure 6 As shown, second movable columns 171 are movably provided on both sides of the inner wall of the second through hole 17, one end of the second movable column 171 passes through the lower mold 1 and is fixedly connected to the second baffle 173, the second baffle 173 and the lower mold 1 are fixedly connected to the second elastic member 172, and the other end of the second movable column 171 is fixedly installed with a lower cutting block 174, and the upper sides of the two lower cutting blocks 174 facing away from one side are both set as inclined surfaces, and two second wedge blocks 271 are provided on the bottom surface of the upper mold 2. When the second elastic member 172 is at its original length, the distance between the two lower cutting blocks 174 is equal to the length of the coiling tube, so that the coiling tube can smoothly enter between the two lower cutting blocks 174, and the subsequent accurate cutting and blanking of the coiling tube is ensured;

[0047] Similarly, when the coiled tube is automatically cut and blanked after encirclement and forming, the coiled tube is located directly above the two lower cutting blocks 174. When the upper mold 2 moves downward, the second wedge block 271 is driven to move downward. Due to the cooperation between the inclined surface of the lower cutting block 174 and the second wedge block 271, the two second wedge blocks 271 first drive the two lower cutting blocks 174 to move closer to each other, so that the two second movable columns 171 and the two second blocking sheets 173 move closer to each other, so that the second elastic member 172 is squeezed and compressed. The two lower cutting blocks 174 move towards each other and gradually abut against the two ends of the inner lining roll tube (when the upper mold 2 moves down to cut the roll tube, the two second lower cutting blocks 174 will no longer be driven to move towards each other), and the upper mold 2 moves down to cause the second upper cutting block 27 to move down to cut between the roll tube and the spacer 64, thereby ensuring precise cutting each time and avoiding the trouble of not being able to cut a complete roll tube when the distance between the two second upper cutting blocks 27 is constant and adapted to the length of the roll tube and the stainless steel strip is offset.

[0048] In addition, if Figure 2 and Figure 7 As shown, a cutting groove 31 is provided at the discharge tail end of the stainless steel strip of the lower mold 1, and a cutting block 32 is provided at the corresponding position of the upper mold 2, so that when the upper mold 2 and the lower mold 1 are closed, the cutting block 32 and the cutting groove 31 can cooperate to cut the waste strip after the coil is taken away, thereby avoiding the trouble of subsequent processing of the waste strip that is too long.

[0049] like Figure 3 , Figure 7 , Figure 8 and Fig.10 As shown, at least one side of the top surface of the lower mold 1 is provided with a first notch hole 11 and a fourth notch hole 19, the center point of the fourth notch hole 19 and the center point of the first notch hole 11 and a third notch hole 13 are located on the same straight line, and the bottom surface of the upper mold 2 is provided with a first punching piece 21 and a fourth punching piece 29, the first punching piece 21 and the first notch hole 11 are used to punch out a first notch 61 on the long strip of stainless steel material, the first notch 61 is connected with the transverse groove 63 and the vertical groove 62, the fourth punching piece 29 and the fourth notch hole 19 are used to punch out a second notch 66 on the long strip of stainless steel material, the second notch 66 is connected with the transverse groove 63;

[0050] Here, a first punching hole 11 and two fourth punching holes 19 are provided on one side of the top surface of the lower mold 1 for illustration: thus, a corresponding first punching piece 21 and a fourth punching piece 29 are provided on one side of the bottom surface of the upper mold 2. By such an arrangement, a first notch 61 and two second notches 66 can be punched out on the stainless steel strip. When the rectangular plates are enclosed to form a liner roll tube, one end of the roll tube has three notches, such as Fig.10 As shown, when the hole is expanded at one end of the rolled tube later, it is convenient to expand and flanging it.

[0051] like Figure 2 and Figure 6 As shown, the top surface of the lower mold 1 is symmetrically provided with a plurality of spring floating pins 4 along its length direction, and the top surface of the lower cutting block 174 is also provided with a spring floating pin 4, the spring floating pin 4 includes a third elastic member (not shown) and a vertical rod, and the outer walls of the two symmetrically arranged vertical rods are provided with a limiting groove (here a ring groove) on the opposite side, the distance between the two symmetrical limiting grooves is greater than the width of the stainless steel strip, and the distance between the outer walls of the two symmetrical vertical rods is less than the width of the stainless steel strip (to ensure that the spring floating pin 4 will not be separated from the limiting groove while limiting the stainless steel strip, and the stainless steel strip will not be clamped, so as to ensure the normal stepping movement of the stainless steel strip), when the upper mold 2 moves down and contacts the vertical rod and drives it to move down until the third elastic member is in a fully compressed state, the stainless steel strip fits with the top surface of the lower mold 1, thereby facilitating the punching, bending and cutting of the stainless steel strip, and when the upper mold 2 moves up to no longer contact the vertical rod, the third elastic member gradually restores its original length, the vertical rod moves up to drive the stainless steel strip to move up, and the stainless steel strip moves to above the lower mold 1;

[0052] By providing the spring floating pin 4, it can be ensured that the stainless steel strip will not contact and collide with the top surface of the lower mold 1 and cause deviation during the conveying process after the bending and forming process, thereby ensuring stable conveying and precise processing of the stainless steel strip.

[0053] like Figure 3 , Figure 7 and Figure 8 As shown, a plurality of positioning punch holes 51 are symmetrically provided on both sides of the top surface of the lower mold 1, and a plurality of positioning punch rods 52 adapted to the positioning punch holes 51 are symmetrically provided on both sides of the bottom surface of the upper mold 2;

[0054] By means of the positioning punch 52 and the positioning punch hole 51, a limiting hole 67 can be processed on the stainless steel strip. When the stainless steel strip is conveyed and the upper mold 2 moves downward, the rear positioning punch 52 first passes through the limiting hole 67 processed by the front positioning punch 52, ensuring that the stainless steel strip will not be offset during punching, bending, forming, and cutting and discharging, thereby further ensuring the accuracy of processing.

[0055] like Fig. 9 As shown, the angle between the bending edge 65 and the horizontal plane of the stainless steel strip is not less than 30°. When it is less than 30°, the two sides of the rectangular plate cannot be well enclosed during subsequent stamping of the third lower module 16 and the third stamping part 26 .

[0056] like Figure 2 , Figure 6 and Figure 7As shown, a third groove is provided on the top surface of the lower mold 1, and the third groove is located between the second groove and the second through hole 17. A shaping lower module 18 adapted to the size of the third lower module 16 is provided in the third groove. A shaping upper module 28 adapted to the size of the third stamping part 26 is provided on the bottom surface of the upper mold 2. By arranging the shaping lower module 18 and the shaping upper module 28, the rolled tube formed by the two vertical sides being enclosed is further stabilized and shaped.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous stamping die for rolling tube of lining part of spoon handle, characterized in that: Used to punch a long stainless steel strip into a plurality of coiled tubes, wherein the coiled tubes are rectangular when unfolded, and include: A lower mold (1), wherein the top surface of the lower mold (1) is provided with a second notch hole (12), a third notch hole (13), a first groove, a first through hole (15), a second groove and a second through hole (17) in sequence along the length direction thereof, at least two of the third notch holes (13) are symmetrically arranged in parallel along the center line of the length direction of the top surface of the lower mold (1), a first lower module (14) is arranged in the first groove, and first bending surfaces (141) are arranged on both sides of the top surface of the first lower module (14), a third lower module (16) is arranged in the second groove, and a V-shaped groove is arranged on the top surface of the third lower module (16), and the inner wall of the V-shaped groove is arc-shaped, two second lower modules (155) that move toward or away from each other are arranged in the first through hole (15), and the top surface of the second lower module (155) is n-shaped, and two lower cutting blocks (174) that move toward or away from each other are arranged in the second through hole (17); An upper mold (2), wherein the bottom surface of the upper mold (2) is provided with a second punching piece (22), a third punching piece (23), a first punching piece (24), a second punching piece (25), a third punching piece (26) and an upper cut block (27) in sequence along its length direction, the second punching piece (25) is provided with a contoured groove matching the second lower die block (155) at the bottom, the third punching piece (26) and the upper cut block (27) are both provided with a punching groove matching the curvature of the top surface of the second lower die block (155) at the bottom, and the third punching piece (26) and the third lower die block (16) form a cavity matching the size of the outer wall of the coil when the mold is closed; The second punching piece (22) and the second punching hole (12) are used to punch out a vertical groove (62) on the long strip of stainless steel material, and the third punching piece (23) and the third punching hole (13) are used to punch out a transverse groove (63) on the long strip of stainless steel material. Two adjacent vertical grooves (62) and transverse grooves (63) cooperate to form a rectangular plate. A connecting spacer (64) is provided between two adjacent transverse grooves (63) on the same side of the stainless steel material. Both ends of each vertical groove (62) are respectively connected to the center position of a transverse groove (63). The first lower module (14) and the first punching piece (24) are used to punch two sides of the rectangular plate to form a bent edge (65).

2. The continuous stamping die for rolling tube of the lining of the handle of a soup spoon according to claim 1, characterized in that: First movable columns (151) are movably provided on both sides of the inner wall of the first through hole (15); one end of the first movable column (151) passes through the lower mold (1) and is fixedly connected to a first baffle (153); a first elastic member (152) is fixedly connected between the first baffle (153) and the lower mold (1); a movable block (154) is fixedly installed on the other end of the first movable column (151); a second lower mold block (155) is fixedly installed on the opposite side of the two movable blocks (154); the upper sides of the two movable blocks (154) facing away from each other are both provided with inclined surfaces; and two first wedge blocks (251) are provided on the bottom surface of the upper mold (2).

3. The continuous stamping die for rolling tube of the inner lining of the handle of a soup spoon according to claim 1, characterized in that: Second movable columns (171) are movably provided on both sides of the inner wall of the second through hole (17); one end of the second movable column (171) passes through the lower mold (1) and is fixedly connected to the second baffle (173); a second elastic member (172) is fixedly connected between the second baffle (173) and the lower mold (1); the other end of the second movable column (171) is fixedly installed with a lower cutting block (174); the upper sides of the two lower cutting blocks (174) facing away from each other are both arranged as inclined surfaces; two second wedge blocks (271) are provided on the bottom surface of the upper mold (2); when the second elastic member (172) is at its original length, the distance between the two lower cutting blocks (174) is greater than the length of the rolled tube after molding.

4. The continuous stamping die for rolling tube of the inner lining of the handle of a soup spoon according to claim 1, characterized in that: A first notch hole (11) and a fourth notch hole (19) are formed on at least one side of the top surface of the lower mold (1), wherein the center point of the fourth notch hole (19), the center point of the first notch hole (11) and the center point of a third notch hole (13) are located on the same straight line; a first punching piece (21) and a fourth punching piece (29) are formed on the bottom surface of the upper mold (2), wherein the first punching piece (21) and the first notch hole (11) are used to punch out a first notch (61) on the long strip of stainless steel material, wherein the first notch (61) is connected to both the transverse groove (63) and the vertical groove (62); and the fourth punching piece (29) and the fourth notch hole (19) are used to punch out a second notch (66) on the long strip of stainless steel material, wherein the second notch (66) is connected to the transverse groove (63).

5. The continuous stamping die for rolling tube of the inner lining of the handle of a soup spoon according to claim 3, characterized in that: The top surface of the lower mold (1) is symmetrically provided with a plurality of spring floating pins (4) along its length direction, and the top surface of the lower cutting block (174) is also provided with a spring floating pin (4), and the spring floating pin (4) includes a third elastic member and a vertical rod, and two symmetrically arranged vertical rod outer walls are provided with limiting grooves on opposite sides, and the distance between the two symmetrical limiting grooves is greater than the width of the stainless steel strip, and the distance between the two symmetrical vertical rod outer walls is less than the width of the stainless steel strip. When the third elastic member is in its original length, the stainless steel strip is located above the lower mold (1), and when the third elastic member is in a fully compressed state, the stainless steel strip fits the top surface of the lower mold (1).

6. The continuous stamping die for rolling tube of the lining of the handle of a soup spoon according to claim 1, characterized in that: A plurality of positioning punch holes (51) are symmetrically provided on both sides of the top surface of the lower mold (1), and a plurality of positioning punch rods (52) adapted to the positioning punch holes (51) are symmetrically provided on both sides of the bottom surface of the upper mold (2).

7. The continuous stamping die for rolling tube of the inner lining of the handle of a soup spoon according to claim 1, characterized in that: The angle between the bent edge (65) and the horizontal plane of the stainless steel strip is not less than 30°.

8. The continuous stamping die for rolling tube of the inner lining of the handle of a soup spoon according to claim 1, characterized in that: The top surface of the lower mold (1) is provided with a third groove, the third groove is located between the second groove and the second through hole (17), a shaping lower module (18) whose size matches that of the third lower module (16) is provided in the third groove, and the bottom surface of the upper mold (2) is provided with a shaping upper module (28) whose size matches that of the third stamping part (26).

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