Bushing type sheet metal part stamping device and stamping method

Abstract

The application provides a bearing bush type sheet part stamping device and stamping method, which comprises an upper die plate and a lower die plate, the upper die plate and the lower die plate are fixedly connected with a press; further comprising a movable module and an inner core fixed below the upper die plate; the movable module is provided with a stamping groove, and the inner core is attached to the stamping groove; two symmetrical positioning steps are arranged in the stamping groove, a limiting cavity is formed between the two positioning steps, the sheet part to be stamped is placed in the limiting cavity, and the shape of the limiting cavity is matched with the shape of the finished product; the movable module is two halves, the two halves of the movable module are placed on the lower die plate, and the two halves of the movable module are driven to open outward by a driving device to complete demolding. The device and method can stamp the finished product, the finished product does not need to be corrected by using hammering method, rolling method, point-by-point extrusion method and the like after stamping, and problems such as wave deformation and radian deformation do not occur, one-time stamping forming can be ensured, and the finished product quality and production efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of stamping technology, and more specifically, to a stamping device and method for thin sheet metal parts for wind turbine elastic vibration damping bearings. Background Technology

[0002] With the development of the social economy and the improvement of manufacturing levels, the requirements for finished products are becoming increasingly higher. Currently, thin sheet metal bearing parts are formed using a rolling process. This process requires multiple positioning steps, complex process parameter settings, and complicated edge-rolling operations, demanding high skill levels from operators. Therefore, the rolling process results in low production efficiency and long production time. Thin sheet metal bearing parts can also be formed using a stamping process. Cold stamping of metal sheets is a widely used processing method in industrial production. Due to the lightweight, ease of processing and forming, and convenient connection characteristics of thin sheet metal bearings, cold stamping can be adopted to improve production efficiency and reduce manufacturing costs.

[0003] For example, patent number 202222368223.6, entitled "Utility Model Patent for a Multi-Curved Surface Three-Dimensional Molding Mold for Tungsten-Molybdenum Material," describes a mold base plate with a mold assembly on its surface, a mold recess on its upper surface, a mold plate embedded in the side surface of the mold recess, a mold side platform on the upper surface of the mold base plate, and a punch assembly above the mold assembly. After installing the mold assembly and punch assembly on a press, the material is heated, and the press is started to bring the mold recess of the mold plate into contact with the punch of the punch plate. This is maintained under pressure for several seconds, then the punch assembly is raised, the finished product is removed, and the operation is complete. This method effectively reduces riveting points, lowers processing difficulty, increases processing efficiency, and achieves good dimensional accuracy.

[0004] For example, patent number 202221645633.4, entitled "A Utility Model Patent for Stamping Forming Die for Bearing Sheet Processing," includes a stamping upper die assembly and a stamping lower die assembly. The stamping upper die assembly includes multiple stamping upper dies arranged sequentially from left to right. The bottom of each stamping upper die has a stamping section, and multiple positioning pins are provided on both sides of the stamping section. Each of the multiple stamping upper dies has a first mounting hole, within which a first mounting cylinder is installed. First mounting caps are provided at both ends of the first mounting cylinder. The stamping lower die assembly includes multiple stamping lower dies arranged sequentially from left to right. The upper surface of each stamping lower die has a stamping groove matching the stamping section. Multiple sets of buffer components are provided on both sides of the stamping groove. Second mounting holes are provided on each of the multiple stamping lower dies, within which a second mounting cylinder is installed. Second mounting caps are provided at both ends of the second mounting cylinder. The bending upper and lower dies of this utility model are assembled from multiple sections. During maintenance, only the damaged parts need to be replaced, saving maintenance time and costs.

[0005] For example, patent application number 202110478259.7, entitled "Invention Patent on a Compressor Bearing Production Equipment and its Production Process," describes a compressor bearing production equipment comprising a frame, an upper mold, and a lower mold. A guide rod is provided between the upper mold and the frame. The lower mold is mounted on the frame. The upper mold contains a first sliding block and a second sliding block that cooperate with each other. The first and second sliding blocks have insert cavities that cooperate with the bearing liner. The upper mold has symmetrically arranged first and second moving parts that allow the first and second sliding blocks to move in mirror image. The lower mold has a lifting part that allows for longitudinal displacement of the lower mold. This invention significantly improves the production efficiency of composite bearings, reduces production costs, and saves production steps.

[0006] All three patents mentioned above relate to the stamping process of thin-plate bearing parts. All involve setting a die on a press that matches the shape of the part. The first and second patents use a punch to press downwards, while the third patent uses a die to press downwards. Regardless of the stamping method, there is no limitation on the stamping position of the part. This is because thin-plate parts have low self-constraint during stamping, and the release of stamping stress after stamping results in uneven stress and strain, leading to problems such as wavy deformation and curvature deformation, directly affecting welding quality, structural performance, safety, reliability, and manufacturability. Therefore, mechanical correction is often required after forming. Mechanical correction methods mainly include hammering, rolling, and point-by-point extrusion. These methods can correct deformation to a certain extent, but they all have certain drawbacks and limitations. Correcting deformation requires specialized process equipment, which not only increases manufacturing costs but also extends production time and reduces production efficiency. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to address the shortcomings of the existing technology for stamping thin plate bearing parts, which is prone to quality problems after stamping due to its small self-restraint during the stamping process. The present invention provides a stamping device for thin plate bearing parts, which can limit the part during the stamping process, ensure that the stamping is completed in one step, improve the quality of finished products and production efficiency, and can use pressure to realize automatic mold closing and demolding.

[0008] The above-mentioned objectives of the present invention are achieved through the following technical solutions:

[0009] A stamping device for thin sheet metal parts of the bearing type includes an upper template and a lower template, which are fixedly connected to a press. It also includes a movable module and an inner core fixed below the upper template. The movable module has a stamping groove, and the inner core fits into the stamping groove. Two symmetrically distributed positioning steps are provided in the stamping groove, forming a limiting cavity between the two positioning steps. The thin sheet metal part to be stamped is placed in the limiting cavity, and the shape of the limiting cavity matches the shape of the finished product. The movable module is divided into two halves, which are placed on the lower template. A driving device drives the two halves of the movable module to open outwards to complete demolding.

[0010] This invention incorporates a limiting cavity within the stamping groove, adapted to the finished product's dimensions, to limit the stamping process. This cavity prevents the thin sheet from shifting and causing uneven deformation. A drive device opens the movable module to complete demolding. After stamping, there is no need for correction methods such as hammering, rolling, or point-by-point extrusion, and problems like wavy or curved deformation will not occur. This invention ensures one-time stamping completion, improving product quality and production efficiency.

[0011] Furthermore, it also includes a support, which is fixed to the lower template. The support also includes two lobes, with two movable modules located between the two lobes of the support. The two movable modules are movably connected to the two lobes of the support, and the movable modules rotate outward or inward with the movable connection position as the fulcrum. When the mold is closed, the splice of the two movable modules has an angled gap, providing space for the movable modules to rotate outward. The driving device drives the movable modules to rotate outward and open.

[0012] The support is fixed to the lower template, and the support limits the position of the movable module. Because a limiting cavity is provided, which limits the finished product, the limiting needs to be released during demolding. This invention allows the movable module to move upwards and rotate. During demolding, the movable module rotates outwards around its movable connection point, opening upwards and outwards relative to the finished product, thus automatically completing demolding. It should be noted that the joint between the two movable modules has an angled gap, providing space for the movable module to rotate outwards. The bearing-type thin-plate part stamping device described in this invention has a very simple structure and is easy to operate; demolding can be quickly completed by driving the movable module. The support is used to install the movable module.

[0013] The movable module is movably mounted on the support. The movable module can rotate outwards or inwards around its connection point. The advantage of this structure is that when the press drives the upper mold plate to move the inner core downwards, the inner core presses down on the movable module, causing it to rotate inwards, achieving automatic mold closing. When the press drives the upper mold plate to move the inner core upwards, the pressure is released, and the movable module, without pressure, can rotate outwards in conjunction with the drive mechanism, achieving automatic demolding.

[0014] Furthermore, the movable module and the support are movably connected by fasteners, and the movable module rotates around the fasteners as fulcrums. The fasteners, such as bolts, are standard parts that can be purchased on the market, and installation is very convenient.

[0015] Furthermore, the support has a first inclined surface on the side facing the movable module, and the movable module has a second inclined surface on the side corresponding to the support. When the mold is closed, the inclination angle α of the first inclined surface relative to the lower template is less than or equal to the inclination angle β of the second inclined surface relative to the lower template, so that there is a gap between the first inclined surface and the second inclined surface, providing space for the movable module to rotate outward.

[0016] This invention uses two inclined planes to limit the position of the movable module during installation, as well as its rotation angle. This ensures that the opening angle of the movable module is just right for demolding.

[0017] Furthermore, the inclined plane is composed of a first inclined plane and a second inclined plane. The inclination angle α1 of the first inclined plane relative to the lower template is less than the inclination angle α2 of the second inclined plane relative to the lower template, and β is greater than or equal to the angle α2 of the second inclined plane.

[0018] Furthermore, a groove is formed on the first inclined surface, and a convex ball adapted to the groove is fixed on the second inclined surface. The movable module uses the fastener as a fulcrum, and the convex ball rotates in the groove.

[0019] Furthermore, a driving device is provided at the bottom of each of the two movable modules. The driving device is an ejection structure, which includes an ejector rod and a spring. A hole is opened on the lower mold plate, and a spring and an ejector rod are placed in the hole in sequence. When the mold is closed, the spring is compressed. When the mold is demolded, the spring extends and pushes the ejector rod through the lower mold plate to push the movable module upward, causing the movable module to rotate.

[0020] The driving device of the present invention can be a purely mechanical mechanism. Utilizing the elastic force of the spring, the spring is compressed when the mold is closed. When demolding, the upper mold plate and inner core move upward, the punching pressure of the press is released, and the return of the spring drives the ejector rod to push the movable module upward, causing the movable module to rotate outward. That is, the movable module moves upward and outward, thereby automatically completing the demolding.

[0021] Furthermore, a driving device is provided at the bottom of each of the two movable modules. The driving device is a cylinder. When demolding, the output end of the cylinder passes through the lower template and pushes the movable module upward, causing the movable module to rotate.

[0022] Furthermore, the support has screw holes for connection to the lower template using bolts. At least two screw holes are provided on the support along the length of the lower template.

[0023] This invention also provides a stamping method for bearing-type thin plate parts. The method uses the above-described stamping device for bearing-type thin plate parts to stamp and form the bearing-type thin plate parts. The thin plate part to be stamped is placed in the limiting cavity, and the inner core is pressed down by the upper template connected to the press for stamping. After holding the pressure, the upper template moves up, and the driving device pushes the movable module upward, so that the movable module rotates and opens, allowing the bearing-type thin plate part to automatically separate from the mold cavity. It can then be removed for the subsequent stamping production of the next finished product.

[0024] The present invention has the following beneficial effects:

[0025] The stamping device for the bearing-type thin plate parts of this invention includes an upper template, a lower template, an inner core mounted on the upper template, and a movable module mounted on the lower template. The movable module has a stamping groove. To limit the deformation of the thin plate to be stamped during the stamping process, a limiting cavity is provided in the stamping groove. The limiting cavity reduces the difficulty and time of stamping positioning, prevents the thin plate from shifting and deforming unevenly, and ensures the quality of the finished product.

[0026] The device described in this invention has a simple structure. Through the cooperation between components and the design of the component structure, it can quickly and conveniently achieve automatic mold closing and automatic demolding. However, due to the presence of a limiting cavity, achieving automatic demolding quickly and easily is a challenging problem. This invention cleverly sets up supports and movable modules. The supports are fixed to the lower template, limiting the movement of the movable module between the two supports. The movable module is movably connected to the supports by bolts. A driving device drives the movable module to rotate around the bolts as a fulcrum, achieving automatic demolding. The joint between the two movable modules has an angled gap, with the angle facing the lower template, providing space for the movable module to rotate outwards. The inclination angle of the first inclined plane is smaller than that of the second inclined plane, creating a gap between the supports and the movable module, providing space for the movable module to rotate outwards. These features enable the smooth rotation of the movable module.

[0027] The modular design allows for easy assembly and disassembly of different modules, and by replacing movable modules, it can adapt to finished products with different arc dimensions. This device offers advantages such as low cost, simple assembly and operation, high production efficiency, and no need for specialized equipment. Attached Figure Description

[0028] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0029] Figure 1 This is a schematic diagram of the die-closing structure of a stamping device for thin sheet metal parts of the bearing type.

[0030] Figure 2 This is a schematic diagram of the working principle of inclined plane one and inclined plane two (during mold closing).

[0031] Figure 3 This is a schematic diagram of the working principle of inclined plane one and inclined plane two (during demolding).

[0032] Figure 4 This is a schematic diagram of the demolding structure of a stamping device for thin sheet metal parts with bearing bushes (upper template and inner core removed).

[0033] Figure 5 This is a schematic diagram of the structure when the two movable modules are closed.

[0034] Upper template 1, lower template 2, inner core 3, left movable module 4A, right movable module 4B, stamping groove 41, positioning step 42, inclined surface 2 43, convex ball 44, gap 5, left support 6A, right support 6B, inclined surface 1 61, first inclined surface 611, second inclined surface 612, screw hole 62, bolt connecting the support and the lower template 63, bolt connecting the movable module and the support 7, gap 8, top rod 9, spring 10, sheet metal to be stamped 11, finished product 12. Detailed Implementation

[0035] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims. Example 1

[0036] A stamping device for thin sheet metal parts of the bearing type, such as Figure 1 As shown, it includes an upper template 1 and a lower template 2, which are fixedly connected to the press; it also includes a movable module, a support, and an inner core fixed below the upper template 1; the movable module has a stamping groove 41, and the inner core fits into the stamping groove 41; the stamping groove 41 is provided with two symmetrically distributed positioning steps 42, and a limiting cavity is formed between the two positioning steps 42. The thin sheet 11 to be stamped is placed in the limiting cavity, and the shape of the limiting cavity matches the shape of the finished product 12; the movable module is divided into two parts (left movable module 4A and right movable module 4B), and the two movable modules are placed on the lower template 2.

[0037] The support is fixed to the lower template 2 and also includes two halves (left support 6A and right support 6B). Two movable modules are located between the two halves of the support and are movably connected to the two halves of the support via bolts 7. The movable modules rotate outwards or inwards around bolts 7 (outwards during demolding and inwards during mold closing). During demolding, the support is fixed, and the movable modules rotate outwards. The fulcrum is located at the connection between the movable module and the support. While the support limits the movement of the movable module, the movable module also rotates between the two supports. Figure 1As shown, the movable module is placed on the lower template 2, with its bottom in contact with the lower template 2 and its outer surface connected to the fixed support. Therefore, space must be provided at the bottom and on the outer surface of the movable module for rotation.

[0038] 1. Bottom of the movable module: During mold closing, the joint of the two movable modules has an angled gap 5, providing space for the movable module to rotate outward; the joint of the two movable modules has an angled gap 5, and the two movable modules must first contact to form a stamping groove 41, therefore, if Figure 1 As shown, the gap 5 at the joint of the two movable modules faces the lower mold plate 2. The inner surface of the movable module is an outwardly inclined slope. When the mold is closed, the two movable modules join to form an angled gap 5, with the gap 5 facing the lower mold plate 2. Figure 4 As shown, the gap 5 decreases after demolding.

[0039] 2. External side of the activity module: such as Figure 1 and Figure 4 As shown, the support has an inclined surface 61 on the side facing the movable module, and an inclined surface 43 on the surface of the movable module corresponding to the support. The inclination angle α of the inclined surface 61 is smaller than the inclination angle β of the inclined surface 43, providing space for the movable module to rotate outward. A groove is formed on the inclined surface 61, and a convex ball 44 adapted to the groove is fixed on the inclined surface 43. The movable module uses the fastener as a fulcrum, and the convex ball 44 rotates within the groove. Figure 1 As shown, the movable module rotates outward, with bolt 7 as the fulcrum. Since the inclination angle of inclined plane 61 is smaller than that of inclined plane 43, during mold closing, there is a gap 8 between inclined plane 61 and inclined plane 43 along the inclined planes, above bolt 7. Figure 4 As shown, after demolding, the gap 8 decreases.

[0040] like Figure 2 , 3 As shown, in order to limit the movement of the movable module while providing space for its rotation, the inclined surface 61 is composed of a first inclined surface 611 and a second inclined surface 612. Figure 2 As shown, during mold closing, the inclination angle α1 of the first inclined surface 611 relative to the lower template 2 is less than the inclination angle α2 of the second inclined surface 612 relative to the lower template 2 (α1 < α2), and β is greater than or equal to the angle α2 of the second inclined surface 612 (β ≥ α2). When α2 = β, during mold closing, the second inclined surface 43 is in parallel contact with the second inclined surface 612, and there is a gap between the second inclined surface 43 and the first inclined surface 611; after the movable module rotates outward, the second inclined surface 43 is in parallel contact with the first inclined surface 611. When β > α2, during mold closing, the second inclined surface 43 is not in contact with the second inclined surface 612; there is a gap between the second inclined surface 43 and the first inclined surface 611; as... Figure 3As shown, after the movable module rotates outward, the second inclined plane 43 contacts the first inclined plane 611 in parallel. In general, during mold closing, the bottom of the movable module contacts the lower mold plate, and the two movable modules join to form a stamping groove; after demolding, the second inclined plane contacts the first inclined plane in parallel, ensuring both component lifespan and mold opening stability. The selection of angles α1, α2, and β depends on the angle the movable module needs to open during demolding. In this embodiment, β > α2 > α1.

[0041] Each of the two movable modules has a drive device at its bottom. The drive device is an ejector structure, which includes an ejector rod 9 and a spring 10. The lower mold plate 2 has a hole in which the spring 10 and the ejector rod 9 are placed in sequence. When the mold is closed, the spring 10 is compressed. When the mold is demolded, the spring 10 extends and pushes the ejector rod 9 through the lower mold plate 2 to push the movable module upward, causing the movable module to rotate.

[0042] The support has screw holes 62, and is connected to the lower template 2 with bolts 63; at least two screw holes 62 are provided on the support along the length of the lower template 2.

[0043] The bearing-type thin plate part stamping device described in this embodiment is equipped with a limiting cavity, which reduces the difficulty and time of stamping positioning. After stamping, there is no need to use hammering, rolling, or point-by-point extrusion methods for correction, and there will be no problems such as wave deformation or arc deformation. It can ensure that the stamping is completed in one step, reduce stamping deformation and stamping correction time, and achieve high production efficiency. On the other hand, since it can be formed in one step, it can avoid surface quality defects of bearing-type thin plate parts caused by shaping, and improve the product qualification rate. During mold closing, the thin plate part 11 to be stamped is placed in the limiting cavity. The press is started, which drives the upper template 1 to move down. The inner core fits with the stamping groove 41 and provides pressure to stamp the thin plate part 11. During the downward movement of the inner core, the mold closing can be completed step by step. This application completes the mold closing by means of the stamping pressure, and the mold closing does not require manual or mechanical assistance. During demolding, the upper mold plate 1 moves the inner core upward, releasing pressure. The spring 10 of the bottom ejector structure of the movable module extends, causing the ejector rod 9 to push the movable module upward. This allows the movable module to rotate around the bolt 7 as a fulcrum, automatically completing the demolding process. In other words, after pressure release, the demolding process requires no manual or mechanical assistance. When stamping workpieces of different sizes, only the movable module needs to be replaced. The movable module and the support are connected by bolts 7, making replacement convenient and quick. The position of the support is also adjustable. It should be noted that another important advantage of this application is that the connection between the support and the lower mold plate 2 (bolt 63), the connection between the movable module and the support (bolt 7), and the connection between the inner core and the upper mold plate 1 simplifies assembly and operation.

[0044] In summary, the ingenious structural design of this application simplifies assembly and facilitates operation, automatically completing mold closing and demolding using only the pressure of the press. This significantly improves product production efficiency and reduces labor intensity. Example 2

[0045] A method for stamping thin sheet bearing parts is provided. The method uses the stamping device for thin sheet bearing parts described in Example 1 to stamp the thin sheet bearing parts. The thin sheet part 11 to be stamped is placed in the limiting cavity. The upper template 1 is connected to the press and drives the inner core to press down for stamping, and the mold is automatically closed. After holding the pressure, the upper template 1 moves up and the driving device pushes the movable module upward, so that the movable module rotates and opens, so that the thin sheet bearing part is automatically separated from the mold cavity and can be taken out for the subsequent stamping production of the next finished product 12.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. A stamping device for thin sheet metal parts of the bearing type, comprising an upper die and a lower die, characterized in that, The upper and lower templates are fixedly connected to the press; it also includes a movable module and an inner core fixed below the upper template; the movable module has a stamping groove, and the inner core fits into the stamping groove; the stamping groove has two symmetrically distributed positioning steps, and a limiting cavity is formed between the two positioning steps. The sheet metal to be stamped is placed in the limiting cavity, the shape of the limiting cavity matches the shape of the finished product, and the size of the limiting cavity matches the finished product, thus limiting the finished product. The limiting cavity limits the deformation of the sheet metal to be stamped during the stamping process; the movable module is divided into two halves, which are placed on the lower template. The two halves are driven by a drive device to open outward to complete demolding; it also includes a support, which is fixed to the lower template. The support also includes two halves, and the two halves of the movable module are located between the two halves of the support. The two halves of the movable module are movably connected to the two halves of the support, and the movable module rotates outward or inward around the movable connection position as the fulcrum.

2. The bearing-type thin plate part stamping device according to claim 1, characterized in that, When the mold is closed, there is an angled gap at the joint of the two movable modules, which provides space for the movable modules to rotate outward; the drive device drives the movable modules to rotate outward and open.

3. The bearing-type thin plate part stamping device according to claim 2, characterized in that, The movable module and the support are movably connected by fasteners, and the movable module rotates around the fasteners as a fulcrum.

4. The bearing-type thin plate part stamping device according to claim 3, characterized in that, The support has a first inclined surface on the side facing the movable module, and the movable module has a second inclined surface on the side corresponding to the support. When the mold is closed, the inclination angle α of the first inclined surface relative to the lower template is less than or equal to the inclination angle β of the second inclined surface relative to the lower template, so that there is a gap between the first inclined surface and the second inclined surface, providing space for the movable module to rotate outward.

5. The bearing-type thin plate part stamping device according to claim 4, characterized in that, The inclined plane consists of a first inclined plane and a second inclined plane. The inclination angle α1 of the first inclined plane relative to the lower template is less than the inclination angle α2 of the second inclined plane relative to the lower template, and β is greater than or equal to the angle α2 of the second inclined plane.

6. The bearing-type thin plate part stamping device according to claim 4, characterized in that, A groove is formed on the first inclined surface, and a convex ball that matches the groove is fixed on the second inclined surface. The movable module uses the fastener as a fulcrum, and the convex ball rotates in the groove.

7. The bearing-type thin plate part stamping device according to claim 4, characterized in that, Each of the two movable modules has a drive device at its bottom. The drive device is an ejector structure, which includes an ejector rod and a spring. The lower mold plate has a hole in which the spring and ejector rod are placed in sequence. When the mold is closed, the spring is compressed. When the mold is demolded, the spring extends and pushes the ejector rod through the lower mold plate to push the movable module upward, causing the movable module to rotate.

8. The bearing-type thin plate part stamping device according to claim 4, characterized in that, Each of the two movable modules has a drive device at its bottom. The drive device is a cylinder. When demolding, the output end of the cylinder passes through the lower template and pushes the movable module upward, causing the movable module to rotate.

9. The bearing-type thin plate part stamping device according to claim 4, characterized in that, The support has screw holes for connection to the lower template using bolts; at least two screw holes are provided on the support along the length of the lower template.

10. A stamping method for a bearing-type thin plate part, characterized in that, The bearing-type thin plate part stamping device according to any one of claims 1 to 9 is used to stamp the bearing-type thin plate part. The thin plate part to be stamped is placed in the limiting cavity. The upper template is connected to the press and drives the inner core to press down for stamping. After holding the pressure, the upper template moves up and the driving device pushes the movable module upward, so that the movable module rotates and opens, so that the bearing-type thin plate part is automatically separated from the mold cavity and can be taken out for the next finished product stamping production.

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