Stamping die for stainless steel plate-galvanized plate composite plate

Abstract

The invention relates to the technical field of stamping guiding, in particular to a stamping die for a stainless steel plate-galvanized plate composite plate. Comprising a top die and a bottom die below the top die, the top die is connected with the bottom die through a guide supporting column; a movable die is movably connected between the top die and the bottom die along the guide pillars; an upper die is mounted on the lower surface of the movable die, and a lower die is mounted on the upper surface of the bottom die; the upper die and the lower die are close to each other to complete stamping; the movable mold is movably connected with the guide supporting column through the movable hole; the guide supporting columns are rotationally connected with the top die and the bottom die; a first inclined groove and a second inclined groove are formed in the outer wall of the guide supporting column; according to the invention, the guide pillar can rotate during each stamping, so that the position of the guide pillar for bearing lateral force is changed, the guide pillar is uniformly stressed, the deformation caused by non-uniform stress of the guide pillar is reduced, the guide precision of the guide pillar is improved, and the quality of a stamped product is indirectly improved.

Description

Technical Field

[0001] The invention relates to the technical field of stamping guides, in particular to a stamping die for a stainless steel plate-galvanized plate composite plate. Background Art

[0002] Galvanized stainless steel composite panels are widely used in many fields. In the construction field, they are often used to build roofs, walls and other structures. They can provide good strength and have rust and corrosion resistance. In automobile manufacturing, some parts such as body shells and doors will use this composite panel, which helps to reduce the weight of the body while ensuring structural safety. In the home appliance industry, the shells of refrigerators and air conditioners will also use galvanized stainless steel composite panels, which are not only beautiful but also extend the service life. In addition, galvanized stainless steel is the material used to make water tanks. When processing galvanized stainless steel composite panels, stamping is a common method, which requires the use of stamping dies. The stamping die mainly includes an upper die, a lower die, and guide pillars connecting them.

[0003] The guide pillar plays a key role in the working process of the mold. On the one hand, it can ensure the precise guidance of the upper and lower molds during the movement, so that the mold can move up and down smoothly and accurately. On the other hand, it has to withstand lateral force. This lateral force is generated during the stamping process, and its direction is perpendicular to the direction of mold movement. When the same product is stamped continuously, the direction of the lateral force on the guide pillar is roughly fixed. Under the action of this single-direction lateral force for a long time, the guide pillar will be subjected to horizontal force, which may cause slight bending. Once the guide pillar has this stress bending, it will affect the guiding accuracy of the upper and lower molds, and ultimately affect the stamping quality of the stainless steel galvanized sheet composite plate. For example, the stamped product may have defects and other problems. Summary of the Invention

[0004] In order to make up for the shortcomings of the existing technology, the present invention proposes a stamping die for a stainless steel plate-galvanized plate composite plate. The present invention rotates the guide pillar during each stamping, thereby changing the position where the guide pillar bears the lateral force, thereby making the guide pillar evenly stressed, reducing the deformation caused by uneven force on the guide pillar, improving the guiding accuracy of the guide pillar, and indirectly improving the quality of the stamped product.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a stamping die for a stainless steel plate-galvanized plate composite plate described in the present invention comprises a top die and a bottom die below the top die; the top die and the bottom die are connected by a guide pillar; the top die and the bottom die are movably connected to the movable die along the guide pillar; an upper die is installed on the lower surface of the movable die, and a lower die is installed on the upper surface of the bottom die; the upper die and the lower die approach each other to complete the stamping; the movable die is movably connected to the guide pillar through a movable hole; the guide pillar is rotatably connected to the top die and the bottom die; a first inclined groove and a second inclined groove are provided on the outer wall of the guide pillar; the first inclined groove and the second inclined groove are arranged in a V shape; in the circumferential direction of the guide pillar, a plurality of the first inclined grooves and the second inclined grooves are staggered and connected end to end; the depth of the upper end of the first inclined groove is less than the depth of the upper end of the second inclined groove; the depth of the lower end of the first inclined groove is greater than the depth of the lower end of the second inclined groove; a movable rod is movably connected in the first inclined groove or the second inclined groove; the movable rod is connected to the inner wall of the movable hole.

[0006] Preferably, a rod groove is provided on the inner wall of the movable hole; the movable rod is movably connected in the rod groove; and the bottom of the rod groove and the movable rod are connected via a first spring.

[0007] Preferably, an extension groove is vertically provided downwardly at the lower end of the first inclined groove and the second inclined groove; the depth of the extension groove at the upper end is consistent with the depth of the lower end of the first inclined groove.

[0008] Preferably, an annular adjustment groove is provided on the upper surface of the movable mold concentrically with the upper end of the movable hole; an annular adjustment ring is rotatably connected in the adjustment groove; slots are provided through the upper and lower parts of the adjustment ring; an insert is connected in the upper and lower sliding manner in the slot; slots for inserting the insert are evenly provided at the bottom of the adjustment groove; an annular accommodating groove is provided on the inner side of the adjustment ring; a rope hole communicating with the accommodating groove is provided at the bottom of the rod groove; a pull rope passes through the rope hole; one end of the pull rope is connected to the movable rod, and the other end is fixedly connected to the inner wall of the accommodating groove.

[0009] Preferably, the guide pillar is movably sealedly connected to the movable hole; the lower surface of the movable mold is fixedly connected to the extension sleeve; the extension sleeve is movably sealedly connected to the guide pillar; the adjustment ring protrudes from the upper surface of the movable mold; and the adjustment ring is rotatably sealedly connected to the adjustment groove.

[0010] Preferably, a strip-shaped lubrication groove is provided upward on the inner wall of the movable hole; a one-way liquid inlet hole is provided through the end of the movable rod away from the first spring and the end close to the first spring; a one-way liquid outlet hole is provided at the position of the accommodating groove connected to the protruding adjustment groove on the inner side of the adjustment ring; the depth of the extension groove at the upper end is less than the depth at the lower end.

[0011] Preferably, the movable rod in the movable hole is only one; the movable rod and the lubrication groove are arranged away from each other in the circumferential direction of the guide pillar.

[0012] Preferably, the number of the movable rods is consistent with the number of the extension slots; and the spacing between the plurality of movable rods in the circumferential direction of the guide pillar is consistent with the spacing between adjacent extension slots in the circumferential direction.

[0013] Preferably, the movable rod is rotatably connected to the rotating ring through the rotating groove on one side close to the bottom of the rod groove; one end of the first spring is fixedly connected to the rotating ring, and the other end is fixedly connected to the bottom of the rod groove.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention rotates the guide pillar during each stamping process, thereby changing the position where the guide pillar bears the lateral force, thereby making the guide pillar bear the force evenly, reducing the deformation of the guide pillar caused by uneven force, improving the guiding accuracy of the guide pillar, and indirectly improving the quality of the stamped product.

[0015] 2. When the movable rod of the present invention moves along the extension groove, the movable mold will drive the upper mold to approach the lower mold to complete the stamping process. The setting of the extension groove can, on the one hand, be applicable to upper molds and lower molds of different thicknesses and composite plates of different thicknesses. On the other hand, it completes the rotation of the guide pillar before stamping, thereby reducing the wear of the guide pillar during the stamping process.

[0016] 3. The present invention can selectively adjust whether the guide pillar needs to rotate according to the part stamping type. The non-rotating guide pillar can reduce the stamping energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 is a perspective view of the present invention; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 is a perspective view of a guide support in the present invention; Figure 4 yes Figure 3 Enlarged view of point B in the middle; Figure 5 is a cross-sectional view of the movable hole and the guide pillar in the present invention; Figure 6 yes Figure 5 Enlarged view of point C in the middle.

[0019] In the figure: top mold 1, bottom mold 2, guide pillar 3, first oblique groove 31, second oblique groove 32, extension groove 33, movable mold 4, movable hole 41, rod groove 42, first spring 43, adjustment groove 44, card slot 45, rope hole 46, pull rope 47, extension sleeve 48, lubrication groove 49, upper mold 5, lower mold 6, movable rod 7, one-way liquid inlet hole 71, rotating groove 72, rotating ring 73, adjusting ring 8, slot 81, insert 82, accommodating groove 83, one-way liquid outlet hole 84. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figures 1 to 6 As shown, the present invention includes the following embodiments: Example 1: A stamping die for a stainless steel plate-galvanized plate composite plate, comprising a top die 1 and a bottom die 2 below the top die 1; the top die 1 and the bottom die 2 are connected by a guide pillar 3; a movable die 4 is movably connected between the top die 1 and the bottom die 2 along the guide pillar 3; an upper die 5 is mounted on the lower surface of the movable die 4, and a lower die 6 is mounted on the upper surface of the bottom die 2; the upper die 5 and the lower die 6 are brought close to each other to complete the stamping; the movable die 4 is movably connected to the guide pillar 3 through a movable hole 41; the guide pillar 3 is rotatably connected to the top die 1 and the bottom die 2 ; A first inclined groove 31 and a second inclined groove 32 are provided on the outer wall of the guide pillar 3; the first inclined groove 31 and the second inclined groove 32 are provided in a V shape; in the circumferential direction of the guide pillar 3, a plurality of the first inclined grooves 31 and the second inclined grooves 32 are staggered and connected end to end; the depth of the first inclined groove 31 at the upper end is less than the depth of the second inclined groove 32 at the upper end; the depth of the first inclined groove 31 at the lower end is greater than the depth of the second inclined groove 32 at the lower end; a movable rod 7 is movably connected in the first inclined groove 31 or the second inclined groove 32; the movable rod 7 is connected to the inner wall of the movable hole 41.

[0022] 2. A stamping die for a stainless steel plate-galvanized plate composite plate according to claim 1, characterized in that: a rod groove 42 is provided on the inner wall of the movable hole 41; the movable rod 7 is movably connected in the rod groove 42; and the bottom of the rod groove 42 and the movable rod 7 are connected by a first spring 43.

[0023] A hydraulic cylinder that can drive the movable mold 4 to move up and down is provided through the top of the top mold 1, and then the corresponding upper mold 5 is installed on the lower surface of the movable mold 4 through the mounting part, and the lower mold 6 is installed on the upper surface of the bottom mold 2 through the mounting part. The lower surface of the upper mold 5 and the upper surface of the lower mold 6 can adapt to the shape of the punched composite plate after forming. After the composite plate is placed on the upper surface of the lower mold 6, the hydraulic cylinder is controlled to move the movable mold 4 downward. During the downward movement of the movable mold 4, the upper mold 5 will be driven downward. During the downward movement of the movable mold 4, the movable hole 41 will be driven to move along the guide pillar 3. During the downward movement of the movable hole 41, the movable rod 7 on the inner wall will be driven to move downward synchronously. Taking the movable rod 7 as an example of first movably connecting to the second inclined groove 32, the depth of the second inclined groove 32 at the upper end is greater than the depth at the lower end When the movable rod 7 moves from top to bottom along the second inclined slot 32, the guide pillar 3 will rotate counterclockwise in a top-down projection, and a rod slot 42 is provided on the inner wall of the movable hole 41. The first spring 43 in the rod slot 42 will give the movable rod 7 a force against the bottom of the second inclined slot 32. In this way, when the movable rod 7 moves to the lower end of the second inclined slot 32, the movable die 4 drives the upper die 5 to contact the lower die 6 to complete the composite plate stamping process. The movable rod 7 will enter the lower end of the first inclined slot 31. The depth of the lower end of the first inclined slot 31 is greater than that of the lower end of the second inclined slot 32. Therefore, the movable rod 7 is pressed against the bottom position of the lower end of the first inclined slot 31 under the action of the elastic force of the first spring 43. After the stamping is completed, the movable die 4 will drive the upper die 5 to move upward. During the upward movement of the movable die 4 The movable rod 7 inside the movable hole 41 will be driven to move from bottom to top along the first inclined slot 31. Since the first inclined slot 31 is inclined, the movable rod 7 will drive the guide pillar 3 to rotate counterclockwise in a top view. The movable rod 7 is pressed against the bottom of the first inclined slot 31 under the elastic force of the first spring 43. When the movable rod 7 moves along the first inclined slot 31 to the upper end of the first inclined slot 31, the movable mold 4 drives the upper mold 5 to separate from the lower mold 6 and completes the upward movement. The movable rod 7 will enter the upper end of the next second inclined slot 32. The depth of the upper end of the first inclined slot 31 is less than the upper end of the second inclined slot 32. Therefore, the movable rod 7 will enter the range of the upper end of the second inclined slot 32. As the movable mold 4 moves downward again, the movable rod 7 will move from top to bottom along the second inclined slot 32. In this way, the movable rod 7 will move cyclically along the second inclined groove 32 and the first inclined groove 31; each time the movable mold 4 moves up and down, the movable rod 7 will drive the guide pillar 3 to rotate counterclockwise in a top-down projection. During the stamping process, the guide pillar 3 plays a guiding purpose on the one hand, and on the other hand, the guide pillar 3 needs to withstand the horizontal lateral force generated during the stamping process. The horizontal lateral force borne by the fixed guide pillar 3 is in a single direction, and the guide pillar 3 is rotated during each stamping, thereby changing the position where the guide pillar 3 bears the lateral force, thereby making the guide pillar 3 evenly stressed, reducing the deformation caused by uneven stress on the guide pillar 3, improving the guiding accuracy of the guide pillar 3, and indirectly improving the quality of the stamped product.

[0024] Embodiment 2: An extension groove 33 is vertically provided downward at the lower end of the first inclined groove 31 and the second inclined groove 32; the depth of the upper end of the extension groove 33 is consistent with the depth of the lower end of the first inclined groove 31.

[0025] The downward movement path of the movable mold 4 along the guide pillar 3 is divided into an upper adjustment section and a lower stamping section. The adjustment section refers to the range in which the movable rod 7 moves along the second inclined slot 32, and the stamping section refers to the range in which the movable rod 7 moves along the extension slot 33. The movable rod 7 will move from the upper end of the second inclined slot 32 to the lower end as the movable mold 4 moves downward. The lower end of the second inclined slot 32 is the lower end of the first inclined slot 31, and the lower end of the first inclined slot 31 is the upper end of the extension slot 33. When the movable rod 7 moves downward along the second inclined slot 32, the guide pillar 3 will be driven to rotate, and the movable rod 7 will move downward along the extension slot 33. Since the extension slot 33 is vertically arranged, the movable rod 7 will not cause the guide pillar 3 to rotate during the movement along the extension slot 33. When the movable rod 7 moves along the extension slot 33, the movable mold 4 will drive the upper mold 5 The stamping process is completed near the lower die 6. The setting of the extension groove 33, on the one hand, can be applicable to upper dies 5 and lower dies 6 of different thicknesses and composite plates of different thicknesses. On the other hand, the rotation of the guide pillar 3 is completed before stamping, thereby reducing the wear caused by the rotation of the guide pillar 3 during the stamping process. That is, it can be understood that if the guide pillar 3 is still rotating during the stamping process, the lateral force of the movable die 4 is transmitted to the guide pillar 3, which will cause the guide pillar 3 to have greater rotation resistance and greater wear. After the stamping is completed, the movable rod 7 will move up along the extension groove 33 and enter the upper end of the extension groove 33. The upper end of the extension groove 33 is the lower end of the first inclined groove 31. The movable rod 7 will move along the first inclined groove 31, causing the guide pillar 3 to rotate again. The movable rod 7 moves from the upper end of the first inclined groove 31 to the upper end of the next second inclined groove 32, and the cycle is repeated.

[0026] Embodiment 3: An annular adjustment groove 44 is provided on the upper surface of the movable mold 4 concentrically with the upper end of the movable hole 41; an annular adjustment ring 8 is rotatably connected in the adjustment groove 44; a slot 81 is provided through the upper and lower parts of the adjustment ring 8; an inserting strip 82 is connected to the slot 81 for sliding up and down; a card slot 45 for inserting the inserting strip 82 is evenly provided at the bottom of the adjustment groove 44; an arc-shaped receiving groove 83 is provided on the inner side of the adjustment ring 8; a rope hole 46 connected to the receiving groove 83 is provided at the bottom of the rod groove 42; a pull rope 47 passes through the rope hole 46; one end of the pull rope 47 is connected to the movable rod 7, and the other end is fixed to the inner wall of the receiving groove 83.

[0027] Not all guide pillars 3 in stamping dies are subject to lateral forces. Whether they bear lateral forces depends on the die structure, stamping process type and force balance state: The first is the situation where no obvious lateral force may be generated, such as symmetrical structure die: such as simple blanking die, punching die, if the die cavity and stamping part are symmetrical in shape, the material is deformed evenly, and the die is mainly subjected to vertical punching pressure during closing. The lateral force is extremely small (negligible), and the guide pillars 3 mainly play a positioning and guiding role and bear almost no lateral force; another example is pure vertical motion process: such as blanking and shallow drawing (symmetrical) of flat parts, the male and female dies have no tilt or offset design, the reaction force of the material on the die is transmitted in the vertical direction, and the guide pillars 3 only need to maintain the coaxiality of the opening and closing of the die; the second is the situation where they must bear lateral forces Situations include asymmetric process molds: such as unilateral bending, beveling, and asymmetric stretching of U-shaped parts. When the material is deformed, a unilateral horizontal thrust will be generated on the mold, causing the guide pillar 3 to bear a lateral force. Another example is a wedge / side punch mechanism: if there is a wedge slider, side punching / side shaping structure in the mold, the wedge angle will decompose the vertical force into a horizontal lateral force. At this time, the guide pillar 3 needs to directly offset the force to prevent the mold from shifting. Another example is a force imbalance scenario: such as uneven material thickness, feeding deviation, and misalignment of mold parts installation, which will cause instantaneous lateral force. The guide pillar 3 needs to absorb this dynamic unbalanced force through the fitting clearance; therefore, this embodiment selectively adjusts whether the guide pillar 3 needs to rotate based on the part stamping type. The non-rotating guide pillar 3 can reduce stamping energy loss; The specific operator can move the inserting strip 82 upward. The inserting strip 82 is in an inverted L shape, so it is easy to move. During the upward movement of the inserting strip 82, it will slide along the slot 81. The lower end of the inserting strip 82 will move out of the card slot 45 to unlock the adjusting ring 8. Then, the adjusting ring 8 is rotated in the adjusting slot 44. The inner wall of the accommodating slot 83 inside the adjusting ring 8 will pull the pull rope 47 to drive the movable rod 7 to overcome the first spring 43 and retract into the rod slot 42. In this way, the movable mold 4 and the guide pillar 3 are unlocked, and the inserting strip 82 is released. The inserting strip 82 moves along the slot 81 under the action of its own gravity. It slides and snaps into the card slot 45 to lock the adjusting ring 8; if the inserting strip 82 is lifted again and the adjusting ring 8 is rotated in the opposite direction, the pull rope 47 in the rope hole 46 is loosened, and the movable rod 7 is extended from the rod slot 42 again under the action of the first spring 43, so that the movable mold 4 and the guide pillar 3 are switched between the connected and disconnected states. When the guide pillar 3 needs to be rotated, the connected state is adopted, and when the guide pillar 3 is not needed, the disconnected state is adopted, thereby reducing the energy consumption of the movable mold 4 in the up and down movement and achieving the purpose of energy saving.

[0028] Embodiment 4: The guide pillar 3 is movably and sealingly connected to the movable hole 41; the lower surface of the movable mold 4 is fixedly connected to the extension sleeve 48; the extension sleeve 48 is movably and sealingly connected to the guide pillar 3; the adjustment ring 8 protrudes from the upper surface of the movable mold 4; the adjustment ring 8 is rotatably and sealingly connected to the adjustment groove 44.

[0029] 6. A stamping die for a stainless steel plate-galvanized plate composite plate according to claim 5, characterized in that: a strip-shaped lubrication groove 49 is provided on the inner wall of the movable hole 41 facing upward; a one-way liquid inlet hole 71 is provided through the end of the movable rod 7 away from the first spring 43 and the end close to the first spring 43; the accommodating groove 83 is connected to the position of the protruding adjustment groove 44 on the inner side of the adjustment ring 8 and is provided with a one-way liquid outlet hole 84; the depth of the upper end of the extension groove 33 is less than the depth of the lower end.

[0030] Before stamping, lubricating liquid is poured into the inner side of the adjusting ring 8. When the movable mold 4 moves downward, the first inclined groove 31 and the second inclined groove 32 on the outer wall of the guide pillar 3 are exposed, and the lubricating liquid contained in the inner side of the adjusting ring 8 contacts the first inclined groove 31 and the second inclined groove 32. When the lubricating liquid is applied to the first inclined groove 31 and the second inclined groove 32, the resistance of the movable rod 7 to the movement is reduced, so that the movable rod 7 drives the guide pillar 3 to rotate more smoothly. Furthermore, the depth of the first inclined groove 31, the second inclined groove 32 and the extension groove 33 is There is a drop, so when the movable rod 7 is pressed close to the rod groove 42, the lubricating liquid in the rod groove 42 will be discharged along the rope hole 46, the accommodating groove 83 and the one-way liquid outlet 84 to the inner space of the adjustment ring 8 on the upper surface of the movable mold 4, and when the movable rod 7 moves away from the bottom of the rod groove 42, a negative pressure will be formed in the rod groove 42, and the rod groove 42 will absorb the lubricating liquid, and the lubricating liquid will flow back along the lubrication groove 49 to the first inclined groove 31, the second inclined groove 32 and the extension groove 33, thereby realizing the flow of the lubricating liquid and improving the lubrication effect on the movement of the movable rod 7.

[0031] Embodiment 5: The number of the movable rod 7 in the movable hole 41 is only one; the movable rod 7 and the lubrication groove 49 are arranged to be spaced apart from each other in the circumferential direction of the guide pillar 3 .

[0032] When only one movable rod 7 is provided, the position where the movable rod 7 sucks out the lubricating liquid in the first chute 31, the second chute 32 and the extension groove 33 is far away from the position where the lubricating liquid enters the lubricating groove 49, so that the flow path of the lubricating liquid in the first chute 31, the second chute 32 and the extension groove 33 is maximized to maximize the replacement effect of the lubricating liquid. A filter (not shown in the figure) can be provided at the upper end of the lubricating groove 49 for filtering to ensure the cleanliness of the lubricating liquid. The upper surface space of the movable mold 4 inside the adjustment ring 8 can be regularly cleaned of impurities and the addition of lubricating liquid.

[0033] Embodiment 6: The number of the movable rods 7 is consistent with the number of the extension slots 33; the spacing between the plurality of movable rods 7 in the circumferential direction of the guide pillar 3 is consistent with the spacing between adjacent extension slots 33 in the circumferential direction.

[0034] The number of movable rods 7 is set to be consistent in the extension slot 33, so that multiple movable rods 7 can move simultaneously along the first inclined slot 31, the second inclined slot 32 and the extension slot 33, so that the movable rods 7 in the first inclined slot 31, the second inclined slot 32 and the extension slot 33 drive the guide pillar 3 to rotate, and the force is more evenly distributed, avoiding uneven force caused by the drive of a single movable rod 7, and improving the stability of the guide pillar 3 being driven to rotate.

[0035] Embodiment 7: The movable rod 7 is rotatably connected to the rotating ring 73 through the rotating groove 72 on one side close to the bottom of the rod groove 42; one end of the first spring 43 is fixedly connected to the rotating ring 73, and the other end is fixedly connected to the bottom of the rod groove 42.

[0036] The outer diameter of the movable rod 7 is slightly smaller than the slot width of the first bevel groove 31, the second bevel groove 32 and the extension slot 33. In addition, by setting the connection position between the first spring 43 and the movable rod 7 to rotate, the movable rod 7 can rotate by friction during the movement along the slot wall of the first bevel groove 31, the second bevel groove 32 and the extension slot 33, thereby reducing wear and improving the service life of the movable rod 7.

[0037] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention 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 operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0038] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A stamping die for a stainless steel plate-galvanized plate composite panel, comprising a top die and a bottom die below the top die; the top die and the bottom die are connected by guide pillars; a movable die is movably connected between the top die and the bottom die along the guide pillars; an upper die is mounted on the lower surface of the movable die, and a lower die is mounted on the upper surface of the bottom die; the upper die and the lower die are brought close to each other to complete the stamping; the characteristics are: The movable mold is movably connected to the guide pillar through a movable hole; the guide pillar is rotatably connected to the top mold and the bottom mold; a first inclined groove and a second inclined groove are provided on the outer wall of the guide pillar; the first inclined groove and the second inclined groove are provided in a V shape; in the circumferential direction of the guide pillar, a plurality of the first inclined grooves and the second inclined grooves are staggered and connected end to end; the depth of the first inclined groove at the upper end is less than the depth of the second inclined groove at the upper end; the depth of the first inclined groove at the lower end is greater than the depth of the second inclined groove at the lower end; a movable rod is movably connected in the first inclined groove or the second inclined groove; the movable rod is connected to the inner wall of the movable hole.

2. The stamping die for a stainless steel plate-galvanized plate composite plate according to claim 1, characterized in that: The inner wall of the movable hole is provided with a rod groove; the movable rod is movably connected in the rod groove; the bottom of the rod groove and the movable rod are connected via a first spring.

3. The stamping die for a stainless steel plate-galvanized plate composite plate according to claim 2, characterized in that: An extension groove is vertically provided downwardly at the lower end of the first inclined groove and the second inclined groove; the depth of the extension groove at the upper end is consistent with the depth of the lower end of the first inclined groove.

4. The stamping die for a stainless steel plate-galvanized plate composite plate according to claim 3, characterized in that: An annular adjustment groove is provided on the upper surface of the movable mold concentrically with the upper end of the movable hole; an annular adjustment ring is rotatably connected in the adjustment groove; slots are provided through the upper and lower parts of the adjustment ring; an insert is connected in the upper and lower sliding manner in the slot; slots for inserting the insert are evenly provided at the bottom of the adjustment groove; an annular accommodating groove is provided on the inner side of the adjustment ring; a rope hole communicating with the accommodating groove is provided at the bottom of the rod groove; a pull rope passes through the rope hole; one end of the pull rope is connected to the movable rod, and the other end is fixedly connected to the inner wall of the accommodating groove.

5. The stamping die for a stainless steel plate-galvanized plate composite plate according to claim 4, characterized in that: The guide pillar is movably sealedly connected to the movable hole; the lower surface of the movable mold is fixedly connected to the extension sleeve; the extension sleeve is movably sealedly connected to the guide pillar; the adjustment ring protrudes from the upper surface of the movable mold; the adjustment ring is rotatably sealedly connected to the adjustment groove.

6. The stamping die for a stainless steel plate-galvanized plate composite plate according to claim 5, characterized in that: A strip-shaped lubrication groove is provided on the inner wall of the movable hole facing upward; a one-way liquid inlet hole is provided through the end of the movable rod away from the first spring and the end close to the first spring; the accommodating groove is connected to the position of the protruding adjustment groove on the inner side of the adjustment ring and is provided with a one-way liquid outlet hole; the depth of the upper end of the extension groove is less than the depth of the lower end.

7. The stamping die for a stainless steel plate-galvanized plate composite plate according to claim 6, characterized in that: The number of movable rods in the movable hole is one; the movable rod and the lubrication groove are arranged away from each other in the circumferential direction of the guide pillar.

8. The stamping die for a stainless steel plate-galvanized plate composite plate according to claim 1, characterized in that: The number of the movable rods is consistent with the number of the extension slots; the spacing between the plurality of movable rods in the circumferential direction of the guide pillar is consistent with the spacing between adjacent extension slots in the circumferential direction.

9. The stamping die for a stainless steel plate-galvanized plate composite plate according to claim 4, characterized in that: The movable rod is rotatably connected to the rotating ring on one side close to the bottom of the rod groove through the rotating groove; one end of the first spring is fixedly connected to the rotating ring, and the other end is fixedly connected to the bottom of the rod groove.

Images