Product punch forming device

Abstract

The utility model relates to a product punch forming device. The product punch forming device comprises a pre-cutting mechanism and a punch forming assembly. The pre-cutting mechanism is used for performing pre-cutting treatment on the material belt and comprises a pre-cutting piece which is arranged corresponding to the position of a connecting strip of the material belt and is used for cutting the connecting strip to form a notch. The punch forming assembly is used for conducting punching treatment on the to-be-punched part of the material belt subjected to pre-cutting treatment through the pre-cutting mechanism. In the process of stamping the material strip to process a product, the material strip firstly moves to pass through the pre-cutting mechanism, and the connecting strip is cut to form a notch through the downward pressing action of the pre-cutting piece of the pre-cutting mechanism, so that the pulling force of the connecting strip on the to-be-stamped part in the fine stamping forming process of the to-be-stamped part can be reduced; therefore, the stress on each part of the periphery of the to-be-stamped part is relatively more uniform, the area of a bright zone on the peripheral surface of a product can be increased, the percent of pass of the product is increased, and the processing efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of product stamping and forming, and in particular to a product stamping and forming device. Background Art

[0002] Stamping is a processing method with high production efficiency and low material consumption. Its process theory is based on the plastic deformation of metal. It uses molds and stamping equipment to apply pressure to the sheet material to cause plastic deformation or separation of the sheet material, thereby obtaining products with certain shapes, sizes and properties. The stamping process is suitable for the production of large batches of products, is easy to realize mechanization and automation, and has high production efficiency.

[0003] With the continuous development and evolution of product stamping and forming devices, the requirements for product precision and appearance are getting higher and higher. More and more punched products require that the fracture surface must be a bright band of more than 70% or even 100%. The fracture surface with a bright band of less than 70% is a defective product. This poses a great challenge to the punching quality of product stamping and forming devices in related technologies, resulting in a low product qualification rate and low processing efficiency. Summary of the invention

[0004] Based on this, it is necessary to overcome the defects of the prior art and provide a product stamping and forming device, which can improve the product processing quality, increase the product qualification rate, and improve the processing efficiency.

[0005] A product stamping and forming device, the product stamping and forming device comprising:

[0006] A pre-cutting mechanism, the pre-cutting mechanism is used to pre-cut the material strip, the pre-cutting mechanism includes a pre-cutting piece arranged corresponding to the position of the connecting strip of the material strip and cutting a notch on the connecting strip; and

[0007] A stamping and forming component is used to stamp the portion to be stamped of the material strip that has been pre-cut by the pre-cutting mechanism.

[0008] In one embodiment, the stamping forming assembly includes a first die base, a forming convex die disposed on the first die base, a second die base and a forming concave die disposed on the second die base, the forming convex die and the forming concave die are disposed in corresponding positions, and the first die base or the second die base is used to be connected to a driving mechanism;

[0009] The pre-cutting mechanism is connected to the first die base or the second die base.

[0010] In one of the embodiments, the product stamping and forming device also includes a first stripping component; the first stripping component and the pre-cut piece are both arranged on the first mold base or the second mold base, and the first stripping component is used to drive the material strip to separate from the pre-cut piece.

[0011] In one embodiment, the product stamping and forming device also includes at least one first gasket detachably disposed between the forming punch and the first die base; and / or, the product stamping and forming device also includes at least one second gasket detachably disposed between the forming die and the second die base.

[0012] In one of the embodiments, the product stamping and forming device further includes a first fixed die and a first mounting plate; the first fixed die is fixedly mounted on the first die base via the first mounting plate; and the top of the forming punch is mounted in the first fixed die.

[0013] In one of the embodiments, the product stamping and forming device further includes a second fixed die and a second mounting plate; the second fixed die is fixedly mounted on the second die base via the second mounting plate; and the forming concave die is mounted in the second fixed die.

[0014] In one of the embodiments, a detachable positioning portion is provided on the molding punch, and the positioning portion is used to be inserted into the positioning hole of the material strip.

[0015] In one embodiment, a first mounting hole is provided on the bottom surface of the molding punch, and the positioning portion is provided with an insertion end adapted to the first mounting hole, and the insertion end is inserted into the first mounting hole; the positioning portion is detachably connected to the molding punch via a first fastener.

[0016] In one of the embodiments, at least one second stripping component is provided on the forming punch, and the second stripping component is used to drive the material strip to separate from the positioning part.

[0017] In one embodiment, the molding die is provided with a cutting portion and a supporting portion connected to the cutting portion, the cutting portion is provided with a first through hole, the supporting portion is provided with a second through hole connected to the first through hole, the hole wall of the first through hole is perpendicular to the end face of the cutting portion, the hole wall of the second through hole is arranged at an obtuse angle to the hole wall of the first through hole, and the inner diameter of the second through hole tends to increase in a direction away from the first through hole.

[0018] In one embodiment, an angle formed by the hole wall of the second through hole and the hole wall of the first through hole is a, wherein a is 150° to 178°.

[0019] In one of the embodiments, the product stamping and forming device also includes a clamping plate, the clamping plate is provided with a second avoidance hole, the forming punch is passed through the second avoidance hole, and the hole edge of the second avoidance hole is provided with a clamping portion, and the clamping portion is used to clamp the material strip.

[0020] In the above-mentioned product stamping and forming device, during the process of stamping the material strip into a product, the material strip first moves through the pre-cutting mechanism, and the pre-cutting piece of the pre-cutting mechanism presses down to cut a notch on the connecting strip, thereby reducing the pulling force of the connecting strip on the part to be stamped during the fine stamping process, so that the force on each part of the periphery of the part to be stamped is relatively more uniform, which is beneficial to increase the area of ​​the bright band on the outer peripheral surface of the product, thereby improving the qualified rate of the product, and the processing efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG. 1 is a schematic diagram of the structure of a material strip according to an embodiment of the present application.

[0022] FIG2 is a diagram showing a product stamping and forming device in a closed mold working state according to an embodiment of the present application.

[0023] FIG. 3 is a diagram showing the device shown in FIG. 2 in a working state of mold opening.

[0024] FIG. 4 is a structural diagram of the forming punch in the device shown in FIG. 2 from one perspective.

[0025] FIG. 5 is a structural diagram of the device shown in FIG. 4 from another perspective.

[0026] FIG. 6 is a structural diagram of a molding die in the device shown in FIG. 2 from one perspective.

[0027] 10. material strip; 11. production unit; 111. annular ring; 112. part to be stamped; 1121. positioning hole; 113. connecting strip; 1131. notch; 114. product; 20. pre-cutting mechanism; 21. pre-cut parts; 30. stamping forming assembly; 31. first die base; 32. forming punch; 321. positioning part; 3211. insertion end; 3212. second mounting hole; 322. first mounting hole; 323. movable hole; 324. third mounting hole; 33. second Die base; 34, forming die; 341, cutting part; 3411, first through hole; 342, supporting part; 3421, second through hole; 35, second stripping assembly; 40, first stripping assembly; 41, first elastic member; 42, stripping column; 43, stripping plate; 431, first avoidance hole; 44, stripping cushion; 52, second cushion; 53, first fixed die; 54, first mounting plate; 55, second fixed die; 56, second mounting plate; 60, clamping plate; 70, guide member. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0029] As described in the background technology, the product stamping and forming device in the related technology has the problems of low blanking quality and low product qualification rate. The inventor has found that the reason for this problem is that, generally speaking, the material strip at the position to be stamped includes a body, on which is provided an annular ring, a part to be stamped arranged inside the annular ring, and a plurality of connecting strips between the annular ring and the part to be stamped, and the part to be stamped is connected to the annular ring through each connecting strip. When the material strip enters the fine stamping position from the position to be stamped, the product stamping and forming device cooperates with the forming convex die and the forming concave die to stamp out the product on the part to be stamped. Since the circumferential edge of the part to be stamped is connected to the annular ring through a plurality of connecting strips, in the process of stamping the part to be stamped to form the product, the force on the part to be stamped where the connecting strip is provided is greater than the force on the other parts, that is, the force on the whole circumference of the part to be stamped is uneven, which leads to the tearing band convex point defect at the position corresponding to the connecting strip on the outer peripheral surface of the stamped product, and then the bright band does not meet the requirements, and the product qualification rate is low.

[0030] Based on the above reasons, the present application provides a product stamping and forming device, which can improve the product processing quality, increase the product qualification rate, and improve the processing efficiency.

[0031] Please refer to FIG. 1 , which shows a schematic diagram of the structure of a material strip 10 according to an embodiment of the present application. The material strip 10 includes a plurality of production units 11 sequentially processed by a product stamping and forming device along the F direction, and each production unit 11 corresponds to a different process. Specifically, the production units 11 are four as shown in FIG. 1 , wherein the first production unit 11 includes an annular ring 111, a portion to be stamped 112 disposed in the annular ring 111, and a plurality of connecting strips 113 between the annular ring 111 and the portion to be stamped 112, and the portion to be stamped 112 is connected to the annular ring 111 through each connecting strip 113. After the first production unit 11 is moved to the pre-cutting position along the F direction, the second production unit 11 is obtained by pre-cutting by the product stamping and forming device. The difference between the second production unit 11 and the first production unit 11 is that a notch 1131 is formed on at least one connecting strip 113. After the second production unit 11 moves to the fine blanking position along the F direction, it is punched and formed by the product punching device, so that the product 114 and the waste material are formed on the part to be punched 112, and the waste material is also the third production unit 11. The third production unit 11 continues to move along the F direction and obtains the fourth production unit 11, the waste material and the product 114 are completely separated, and the product 114 is separated from the fourth production unit 11.

[0032] Referring to Figures 1 to 3, Figures 2 and 3 respectively show two different working states of a product stamping and forming device in one embodiment of the present application in a closed mold and an open mold. An embodiment of the present application provides a product stamping and forming device, and the product stamping and forming device includes: a pre-cutting mechanism 20 and a stamping and forming assembly 30. The pre-cutting mechanism 20 is used to pre-cut the material strip 10, and the pre-cutting mechanism 20 includes a pre-cut piece 21 arranged corresponding to the position of the connecting strip 113 of the material strip 10 and cutting the connecting strip 113 to form a notch 1131. The stamping and forming assembly 30 is used to stamp the portion to be stamped 112 of the material strip 10 that has been pre-cut by the pre-cutting mechanism 20.

[0033] In the above-mentioned product stamping and forming device, during the process of stamping the material strip 10 to produce the product 114, the material strip 10 first moves through the pre-cutting mechanism 20, and the pre-cutting piece 21 of the pre-cutting mechanism 20 presses down to cut a notch 1131 on the connecting strip 113, thereby reducing the pulling force of the connecting strip 113 on the part to be stamped 112 during the fine stamping process, so that the force on each peripheral part of the part to be stamped 112 is relatively more uniform, which is beneficial to increase the size of the bright band area on the outer peripheral surface of the product 114, thereby improving the qualified rate of the product 114, and the processing efficiency is improved.

[0034] Please refer to FIG. 1 . In some embodiments, the number of connecting strips 113 on the periphery of each to-be-punched portion 112 on the connecting belt may be the same or different, including but not limited to 2, 3, 4, 5 or other numbers. In order to facilitate the processing efficiency of the pre-cutting mechanism 20 , each manufacturing unit 11 on the connecting belt is processed and formed in sequence along the F direction, so that the number and position of the connecting strips 113 on the periphery of each to-be-punched portion 112 are consistent.

[0035] As an example, the number of pre-cut pieces 21 of the pre-cutting mechanism 20 can be the same as the number of connecting strips 113 of the portion to be punched 112, and the positions can be arranged correspondingly, so that each connecting strip 113 of the portion to be punched 112 can be processed to form a notch 1131; please refer to Figure 1, the number of pre-cut pieces 21 of the pre-cutting mechanism 20 can also be less than the number of connecting strips 113 of the portion to be punched 112, and the number of pre-cut pieces 21 of the pre-cutting mechanism 20 is, for example, 1, 2, 3 or other numbers, that is, a part of the connecting strips 113 on the portion to be punched 112 are processed to form notches 1131, and the remaining connecting strips 113 do not need to be processed to form notches 1131. Specifically, when arranging the pre-cut pieces 21 of the pre-cutting mechanism 20, the connecting strip 113 that needs to be cut to form the notch 1131 is determined according to the parts of the outer peripheral surface of the product 114 that have higher requirements for appearance quality, such as the exposed parts. That is, the connecting strip 113 that needs to be cut to form the notch 1131 is arranged corresponding to the parts of the outer peripheral surface of the product 114 that have higher requirements for appearance quality, and the pre-cut pieces 21 are arranged accordingly according to the connecting strip 113 that needs to be cut to form the notch 1131.

[0036] In some embodiments, the pre-cut pieces 21 include but are not limited to cutting knives, needle punches, cutting blades, cutting plates, etc., as long as a notch 1131 can be formed on the connecting strip 113 to reduce the pulling force of the connecting strip 113 on the periphery of the stamping portion 112 during the fine stamping process.

[0037] Please refer to Figures 1 to 3. In one embodiment, the stamping and forming assembly 30 includes a first die base 31, a forming convex die 32 disposed on the first die base 31, a second die base 33, and a forming concave die 34 disposed on the second die base 33. The forming convex die 32 and the forming concave die 34 are disposed in corresponding positions, and the first die base 31 or the second die base 33 is used to be connected to a driving mechanism. The driving mechanism includes but is not limited to various power mechanisms such as motor screw drive, motor crankshaft drive, motor gear drive, and cylinder drive. Optionally, the pre-cutting mechanism 20 is connected to the first die base 31 or the second die base 33. In this way, when the stamping and forming assembly 30 processes the part 112 to be stamped to produce the product 114 at the fine-blanking position, the pre-cutting mechanism 20 will move synchronously under the drive of the first die base 31 or the second die base 33, and can realize the pre-cutting of the connecting strip 113 at the pre-cutting position to form an incision, that is, it can realize the synchronous operation of at least two different processes of the material strip 10, which can not only simplify the structure of the power drive, reduce the device cost, but also improve the processing efficiency.

[0038] Of course, as some optional solutions, the pre-cutting mechanism 20 is not connected to the first mold base 31 or the second mold base 33, but is independently set and driven to achieve pre-cutting of the connecting strip 113 of the material strip 10 to form an incision. After pre-cutting the connecting strip 113 of the material strip 10 to form an incision, the material strip 10 is transferred to the fine stamping position for fine stamping forming.

[0039] Please refer to Figures 1 to 3. In some embodiments, the first mold base 31 and the second mold base 33 include but are not limited to being arranged in the vertical direction, and the forming punch 32 and the forming die 34 are arranged in the vertical direction accordingly; they can also be arranged in the lateral direction, or in other directions, which are not limited here.

[0040] Please refer to Figures 1 to 3. In this embodiment, specifically, the first die base 31 and the forming convex die 32 are located above the second die base 33 and the forming concave die 34. In addition, the first die base 31 is connected to the driving mechanism, and the position of the second die base 33 is in a fixed state. During the mold closing operation, under the drive of the driving mechanism, the first die base 31 drives the forming convex die 32 arranged thereon to move downward, and the forming convex die 32 cooperates with the forming concave die 34 directly below it, so that the product 114 can be stamped on the part to be stamped 112 of the material strip 10, and the product 114 is separated from the remaining materials on the material strip 10, and falls downward through the drop hole (specifically the second through hole 3421 below) of the forming concave die 34, and the product 114 is collected.

[0041] Please refer to Figures 1 to 3. In one embodiment, the product stamping and forming device further includes a first stripping component 40. The first stripping component 40 and the pre-cut piece 21 are both arranged on the first die base 31 or the second die base 33, and the first stripping component 40 is used to drive the material strip 10 to separate from the pre-cut piece 21. In this way, when the pre-cut piece 21 forms a notch 1131 on the connecting strip 113 of the material strip 10, and the first die base 31 and the second die base 33 are separated from each other, the first stripping component 40 drives the material strip 10 and the pre-cut piece 21 to separate from each other, which can avoid the position deviation of the material strip 10 caused by the resetting process of the pre-cut piece 21.

[0042] Referring to FIGS. 1 to 3 , in some embodiments, the first stripping assembly 40 and the pre-cut piece 21 are both specifically disposed on the first die base 31. In addition, the first stripping assembly 40 includes a first elastic member 41, a stripping column 42, and a stripping plate 43. The first die base 31 is connected to the stripping column 42 via the first elastic member 41, and the stripping column 42 is connected to the stripping plate 43. The stripping plate 43 is provided with a first avoidance hole 431, and the pre-cut piece 21 can be movably inserted into the first avoidance hole 431. Among them, when the first mold base 31 drives the pre-cut piece 21 and the forming punch 32 to move downward to perform the mold closing action, the unloading plate 43 compresses the first elastic member 41 accordingly, and the pre-cut piece 21 extends out from the first avoidance hole 431 and pre-cuts the material strip 10; when the first mold base 31 drives the pre-cut piece 21 and the forming punch 32 to move upward to perform the mold opening action, the first elastic member 41 is reset to drive the unloading plate 43 to move, and the unloading plate 43 drives the material strip 10 and the pre-cut piece 21 to separate from each other.

[0043] Referring to Figures 1 to 3, in some embodiments, the first stripping assembly 40 further includes a stripping pad 44 that is superimposed and connected to the stripping plate 43. The stripping pad 44 is located on a side of the stripping plate 43 close to the first die holder 31. In this way, when the stripping plate 43 is worn out after long-term use, the wear of the stripping plate 43 can be compensated by adjusting and replacing the stripping pad 44 with different thicknesses, thereby improving the accuracy.

[0044] In some embodiments, the unloading pad 44 includes but is not limited to a pad, a block, a gasket, etc.

[0045] Please refer to Figures 1 to 3. In some embodiments, the product stamping forming device further includes at least one first cushion member detachably disposed between the forming punch 32 and the first die base 31. In this way, when the forming punch 32 is worn, the wear of the forming punch 32 can be compensated by replacing the first cushion members of different thicknesses to ensure the processing accuracy of the product 114. In this way, there is no need to replace the forming punch 32 with a push-hanging table, which is convenient for maintenance and can extend the life of the forming punch 32. In addition, by providing the first cushion member, the length of the forming punch 32 can be reduced, which can reduce the amount of alloy material used and thus reduce costs.

[0046] Please refer to FIG. 2 and FIG. 3. In some embodiments, the product stamping forming device further includes at least one second gasket 52 detachably disposed between the forming die 34 and the second die base 33. In this way, when the forming die 34 is worn, the wear of the forming die 34 can be compensated by replacing the second gasket 52 of different thicknesses to ensure the processing accuracy of the product 114. In this way, there is no need to replace the forming die 34 with a push-hanging table, which is convenient for maintenance and can extend the life of the forming die 34. In addition, by providing the second gasket 52, the length of the forming die 34 can be reduced, which can reduce the amount of alloy material used and thus reduce costs.

[0047] In addition, the second cushion member 52 can be set to, for example, 1, 2, 3 or other numbers, which can be flexibly adjusted and set according to actual needs. When the second cushion member 52 is set to at least two, at least two second cushion members 52 are stacked, and the thickness of each second cushion member 52 is the same or different. When the forming die 34 is worn, each second cushion member 52 can be replaced more flexibly. The female mold is changed to a split structure, which can be processed with PG to meet the requirements of smoothness.

[0048] In some embodiments, the first cushion member and the second cushion member 52 are independently configured, and both include but are not limited to cushion plates, cushion blocks, gaskets, etc.

[0049] Referring to FIG. 2 and FIG. 3 , in one embodiment, the product stamping and forming device further includes a first fixed die 53 and a first mounting plate 54. The first fixed die 53 is fixedly mounted on the first die holder 31 through the first mounting plate 54. The top of the forming convex die 32 is mounted in the first fixed die 53. In this way, the forming convex die 32 can be stably mounted on the first die holder 31.

[0050] In some embodiments, the first cushion member is, for example, installed between the top surface of the molding punch 32 and the first mounting plate 54 .

[0051] In some embodiments, the push pin can also be movably disposed in the first fixed mold 53 and the first mounting plate 54 .

[0052] Referring to FIG. 2 and FIG. 3 , in one embodiment, the product stamping and forming device further includes a second fixed die 55 and a second mounting plate 56. The second fixed die 55 is fixedly mounted on the second die base 33 via the second mounting plate 56. The forming die 34 is mounted in the second fixed die 55. In this way, the forming die 34 can be stably mounted on the second die base 33.

[0053] In addition, the upper surface of the second fixed mold 55 is set to be a plane. During the processing, the material strip 10 runs on the upper surface of the second fixed mold 55, and the second fixed mold 55 plays a supporting role.

[0054] In some embodiments, the second cushion member 52 is, for example, installed between the bottom surface of the molding die 34 and the second mounting plate 56 .

[0055] Please refer to FIG. 1 and FIG. 4 . In one embodiment, a detachable positioning portion 321 is provided on the forming convex die 32. The positioning portion 321 is used to be inserted into the positioning hole 1121 of the material strip 10. In this way, after the positioning portion 321 is inserted into the positioning hole 1121 of the material strip 10, it plays a coaxial positioning role for the material strip 10 during the stamping process, which can improve the processing quality of the product 114. In addition, since the positioning portion 321 is detachably mounted on the forming convex die 32, when the concentricity needs to be adjusted, it is only necessary to disassemble, replace and maintain the positioning portion 321, which saves time and improves the machine utilization rate.

[0056] 4, in one embodiment, a first mounting hole 322 is provided on the bottom surface of the molding convex mold 32, and a positioning portion 321 is provided with an insertion end 3211 adapted to the first mounting hole 322, and the insertion end 3211 is inserted into the first mounting hole 322. The positioning portion 321 is detachably connected to the molding convex mold 32 via a first fastener.

[0057] Specifically, a second mounting hole 3212 is provided on the positioning portion 321, and the first fastener includes but is not limited to screws, bolts, pins, rivets, etc. The first fastener is adapted to the second mounting hole 3212, and the first fastener passes through the second mounting hole 3212 and is fixedly installed on the bottom surface of the molding punch 32 together with the first mounting hole 322.

[0058] In some embodiments, the positioning portion 321 may also be fixedly mounted on the bottom surface of the forming punch 32 by various means such as snap-fitting, bonding, etc.

[0059] Please refer to Figures 1 to 5. In one embodiment, at least one second stripping component 35 is provided on the forming convex die 32, and the second stripping component 35 is used to drive the material strip 10 to separate from the positioning portion 321. In this way, when the forming convex die 32 punches the product 114 on the part to be punched 112, and the first die base 31 and the second die base 33 are separated from each other, the second stripping component 35 drives the material strip 10 to separate from the positioning portion 321, which can avoid the position deviation of the material strip 10 caused by the resetting process of the positioning portion 321.

[0060] In some embodiments, the second stripping component 35 is specifically, for example, disposed on the bottom surface of the forming punch 32. In addition, the second stripping component 35 includes a second elastic member and a material-lifting member connected to the second elastic member. The material-lifting member can be movably inserted into a movable hole 323 on the bottom surface of the forming punch 32, and the second elastic member is disposed in a third mounting hole 324 of the forming punch 32. When the first mold base 31 drives the forming punch 32 to move downward to perform a mold closing action, the second elastic member is compressed by force, and the material-lifting member enters the movable hole 323; when the first mold base 31 drives the forming punch 32 to move upward to perform a mold opening action, the second elastic member is reset to drive the material strip 10 to move, and drive the material strip 10 to separate from the positioning portion 321, so as to prevent the material strip 10 from rebounding and causing dotting defects.

[0061] In some embodiments, the second stripping assembly 35 includes but is not limited to one, two, three, four or other quantities. In this embodiment, the second stripping assembly 35 is configured to be three and is arranged at intervals around the circumference of the positioning portion 321 .

[0062] Please refer to FIG. 6 . In one embodiment, the forming die 34 is provided with a cutting portion 341 and a supporting portion 342 connected to the cutting portion 341. The cutting portion 341 is provided with a first through hole 3411, and the supporting portion 342 is provided with a second through hole 3421 connected to the first through hole 3411. The hole wall of the first through hole 3411 is perpendicular to the end face of the cutting portion 341, the hole wall of the second through hole 3421 is arranged at an obtuse angle to the hole wall of the first through hole 3411, and the inner diameter of the second through hole 3421 tends to increase in a direction away from the first through hole 3411. In this way, the stripping method of the forming die 34 is an inclined stripping method. Compared with the step structure in the related art, the cutting portion 341 of the forming die 34 can be fully utilized, and the material thickness D of the cutting portion 341 can still be used normally when it is 0.2 mm, that is, the life of the component can be extended, and it is easy to process and reduce the cost.

[0063] In one embodiment, an angle formed by the hole wall of the second through hole 3421 and the hole wall of the first through hole 3411 is a, wherein a is 150° to 178°.

[0064] Please refer to FIG. 2 and FIG. 3. In one embodiment, the product stamping forming device further includes a clamping plate 60. The clamping plate 60 is provided with a second avoidance hole, the forming convex die 32 is inserted into the second avoidance hole, and the hole edge of the second avoidance hole is provided with a clamping portion, which is used to clamp the material strip 10. In this way, the forming convex die 32 is inserted into the second avoidance hole to play a positioning role; in addition, the clamping portion on the hole edge of the second avoidance hole also clamps the material strip 10, which can effectively ensure the concentricity and bright band of the product 114.

[0065] Referring to Figures 2 and 3, in one embodiment, the product stamping and forming device further includes a guide member 70. The guide member 70 is respectively disposed in the first die base 31, the first mounting plate 54, the first fixed die 53, the unloading cushion 44, the unloading plate 43, the second fixed die 55 and the second mounting plate 56, so that the guide member 70 guides the movement of the first die base 31, and the stability is improved.

[0066] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0067] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0068] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0069] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0070] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A product stamping device, characterized in that: The product stamping and forming device comprises: A pre-cutting mechanism, the pre-cutting mechanism is used to pre-cut the material strip, the pre-cutting mechanism includes a pre-cutting piece arranged corresponding to the position of the connecting strip of the material strip and cutting a notch on the connecting strip; and A stamping and forming component is used to stamp the portion to be stamped of the material strip that has been pre-cut by the pre-cutting mechanism.

2. The product stamping and forming device according to claim 1, characterized in that: The stamping forming assembly includes a first die base, a forming convex die arranged on the first die base, a second die base and a forming concave die arranged on the second die base, the forming convex die and the forming concave die are arranged in corresponding positions, and the first die base or the second die base is used to be connected to a driving mechanism; The pre-cutting mechanism is connected to the first die base or the second die base.

3. The product stamping and forming device according to claim 2, characterized in that: The product stamping and forming device also includes a first stripping component; the first stripping component and the pre-cut piece are both arranged on the first mold base or the second mold base, and the first stripping component is used to drive the material strip to separate from the pre-cut piece.

4. The product stamping and forming device according to claim 2, characterized in that: The product stamping and forming device also includes at least one first gasket detachably arranged between the forming punch and the first die base; and / or, the product stamping and forming device also includes at least one second gasket detachably arranged between the forming die and the second die base.

5. The product stamping and forming device according to claim 2, characterized in that: The product stamping and forming device also includes a first fixed die and a first mounting plate; the first fixed die is fixedly mounted on the first die base through the first mounting plate; and the top of the forming convex die is mounted in the first fixed die.

6. The product stamping and forming device according to claim 2, characterized in that: The product stamping and forming device also includes a second fixed die and a second mounting plate; the second fixed die is fixedly mounted on the second die base through the second mounting plate; and the forming concave die is mounted in the second fixed die.

7. The product stamping and forming device according to claim 2, characterized in that: The forming convex die is provided with a detachable positioning portion, and the positioning portion is used to be inserted into the positioning hole of the material strip.

8. The product stamping and forming device according to claim 7, characterized in that: A first mounting hole is provided on the bottom surface of the forming convex mold, and the positioning portion is provided with an insertion end adapted to the first mounting hole, and the insertion end is inserted into the first mounting hole; the positioning portion is detachably connected to the forming convex mold via a first fastener.

9. The product stamping and forming device according to claim 7, characterized in that: At least one second stripping component is provided on the forming convex die, and the second stripping component is used for driving the material belt to separate from the positioning part.

10. The product stamping and forming device according to claim 2, characterized in that: The molding die is provided with a cutting portion and a supporting portion connected to the cutting portion, the cutting portion is provided with a first through hole, the supporting portion is provided with a second through hole connected to the first through hole, the hole wall of the first through hole is perpendicular to the end face of the cutting portion, the hole wall of the second through hole is arranged at an obtuse angle to the hole wall of the first through hole, and the inner diameter of the second through hole tends to increase in a direction away from the first through hole.

11. The product stamping and forming device according to claim 10, characterized in that: An angle formed by the hole wall of the second through hole and the hole wall of the first through hole is a, wherein a is 150° to 178°.

12. The product stamping and forming device according to any one of claims 2 to 11, characterized in that: The product stamping and forming device also includes a clamping plate, which is provided with a second avoidance hole, the forming punch is inserted into the second avoidance hole, and the hole edge of the second avoidance hole is provided with a clamping part, and the clamping part is used to clamp the material strip.

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