PMI foam forming stamping device

Abstract

The utility model discloses a PMI foam forming stamping device which comprises a stamping table, the top of the stamping table is fixedly connected with a lower die, a positioning groove is formed in the top face of the lower die, a stamping groove is formed in the middle of the bottom of the positioning groove, the two ends of the positioning groove are each fixedly connected with a pair of supports, positioning assemblies are installed on the supports, and the bottom of the stamping table is fixedly connected with a bracket. A fixing frame is arranged on the rear side of the stamping table, a stamping mechanism and a cleaning mechanism are arranged on the top and the side portion of the fixing frame respectively, a blocking cover is fixedly connected to the front end face of the stamping table, and a dust collecting groove is formed in the stamping table. According to the automatic demolding and material taking device, automatic demolding and material taking of the PMI foam part can be achieved, compared with a negative pressure suction material taking mode, efficiency is higher, impurities such as dust remaining on the stamping groove and the material jacking plate can be blown away before stamping machining is conducted on the PMI foam part and after stamping work is completed, and the stamping efficiency is improved. Therefore, dust and other impurities are prevented from adhering to the surface of the PMI foam part to affect the quality of a finished product.

Description

Technical Field

[0001] This utility model belongs to the field of PMI foam processing technology, and in particular relates to a PMI foam forming and stamping device. Background Technology

[0002] PMI foam forming stamping is a process that combines heating and high-pressure forming, mainly used to manufacture lightweight sandwich structure core materials with complex geometries or high precision requirements. Compared with thermoforming, stamping emphasizes rapid plastic deformation under high pressure, making it suitable for applications in the automotive, aerospace, and other fields where efficiency and consistency are critical.

[0003] According to the search, a PMI foam forming stamping device with the publication number CN221391914U is disclosed on the Chinese Patent Network. The advantages of this stamping device are: after the PMI foam material part is stamped, it is located on the press table. At this time, the output end of the control cylinder retracts and a new type of movable plate structure is designed. The movable plate approaches the foam material part until the negative pressure head contacts the foam material part. The negative pressure pump starts and the negative pressure pipe cooperates with the negative pressure head to suck up the foam material part. Then the output end of the cylinder pushes out and the movable plate pulls out the formed foam material part laterally, thereby completing the automatic material picking of the stamped foam material part. No manual material picking is required, which is more efficient and saves manpower. However, there are some defects and shortcomings that need to be improved: (1) Although some existing stamping devices can pass through The negative pressure suction method is used to automatically pick up foam material parts, but due to the lack of effective positioning and guiding measures, the position of the foam material parts is prone to displacement. This makes it difficult for the foam material parts to fully contact and adhere to the negative pressure head when the negative pressure suction is applied, resulting in a weakening of the suction force of the negative pressure head. Often, multiple suctions are required to complete the material picking work, thereby reducing the efficiency of automatic material picking; (2) Some existing stamping devices lack self-cleaning functions. Before and after stamping, it is difficult to effectively clean the dust and other impurities remaining on the surface of the stamping equipment. This makes it easy for dust and other impurities to adhere to the surface of the PMI foam parts when stamping PMI foam later, thus affecting the quality of the finished PMI foam. Therefore, in view of the above problems, the PMI foam molding stamping device provided by this utility model is of great significance. Utility Model Content

[0004] This invention provides a PMI foam molding and stamping device. A demolding mechanism ejects the stamped PMI foam parts from the stamping groove, enabling automatic demolding and material handling. Compared to negative pressure suction, the ejector plate can fully contact and adhere to the PMI foam parts, ensuring uniform force distribution and effectively preventing uneven force distribution from affecting material handling efficiency. A cleaning mechanism uses airflow to blow away dust and other impurities remaining in the stamping groove and ejector plate before and after stamping, effectively preventing dust and impurities from adhering to the surface of the PMI foam parts and affecting the finished product quality. When dust and impurities are blown away from the stamping groove and ejector plate, a baffle acts as a barrier to prevent them from scattering, allowing them to fall into a dust collection trough for recycling and subsequent cleaning. In summary, this invention solves the problems in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model discloses a PMI foam molding stamping device, including a stamping table. Several support legs are fixedly connected to the bottom of the stamping table, and a lower mold is fixedly connected to the top of the stamping table. A positioning groove is formed on the top surface of the lower mold, and a stamping groove is formed in the middle of the bottom of the positioning groove. A pair of brackets are fixedly connected to both ends of the positioning groove. The brackets are symmetrically distributed on both sides of the stamping table, and positioning components are installed on the brackets. A bracket is fixedly connected to the bottom of the stamping table, and a demolding mechanism is provided on the bracket. A fixed frame is provided on the rear side of the stamping table, and the bottom of the fixed frame is fixedly connected to the stamping table. A stamping mechanism and a cleaning mechanism are respectively provided on the top and side of the fixed frame. A baffle is fixedly connected to the front end of the stamping table, and a dust collection trough is placed on the stamping table, located directly below the baffle.

[0007] The positioning component includes an electric telescopic rod, which is mounted on a bracket and has a positioning plate fixedly connected to the end of its output shaft.

[0008] The demolding mechanism includes a cylinder, which is installed on the upper bottom surface of the bracket. The top of its output shaft passes through the bottom of the stamping table and the lower die and is fixedly connected to a top plate. The top plate is located in the stamping groove and has several buffer pads on its top.

[0009] The stamping mechanism includes a hydraulic cylinder, which is mounted on the top of the fixed frame. A stamping plate is fixedly connected to the bottom end of its output shaft, and an upper die is fixedly connected to the bottom of the stamping plate.

[0010] The cleaning mechanism includes an air guide chamber and a motor. The air guide chamber and the motor are respectively installed on the front and rear faces of the fixed frame. Several air guide pipes are fixedly connected to the front face of the air guide chamber. The output shaft of the motor passes through the side wall of the fixed frame and extends into the air guide chamber. Several fan blades are installed on the output shaft of the motor.

[0011] Furthermore, both the stamping groove and the positioning groove are rectangular, and the depth of the stamping groove is greater than the depth of the positioning groove. The upper die is located directly above the stamping groove, and the length and width of the upper die are equal to the length and width of the stamping groove, respectively.

[0012] Furthermore, the positioning plates are symmetrically distributed on both sides of the positioning groove and are parallel to the positioning groove, and a protective pad is provided on the surface of the positioning plates.

[0013] Furthermore, the top plate is rectangular, and its length and width are equal to the length and width of the stamping groove, respectively. The top surface of the top plate is provided with a number of slots, which are rectangular and are distributed linearly at equal intervals along the length of the top plate. The buffer pad is rectangular, and its length and width are equal to the length and width of the slots, respectively. The surface of the buffer pad is provided with herringbone anti-slip texture.

[0014] Furthermore, one end of the air guide pipe is connected to the inner cavity of the air guide chamber, and they are distributed in an equidistant linear array along the length and width of the air guide chamber, with the center of each air guide pipe corresponding to the center of the stamping groove.

[0015] Furthermore, the baffle is C-shaped, and the height of its top and bottom surfaces is the same as the height of the top and bottom surfaces of the stamping groove, respectively. The ash collection groove is rectangular, and its length and width are greater than the length and width of the baffle, respectively. A pair of limiting plates are fixedly connected to the top of the stamping table. The limiting plates are symmetrically distributed at both ends of the baffle, and their spacing is equal to the length of the ash collection groove.

[0016] The present invention has the following advantages over the prior art:

[0017] (1) When using the PMI foam forming stamping device of this utility model, the stamped PMI foam parts can be ejected from the stamping groove through the demolding mechanism to realize automatic demolding and material removal of PMI foam parts. Compared with the material removal method of negative pressure suction, the ejector plate can fully contact and fit with the PMI foam parts to ensure that the PMI foam parts can be evenly stressed, thereby effectively avoiding the PMI foam parts from affecting the material removal efficiency due to uneven stress.

[0018] (2) When using the PMI foam forming stamping device of this utility model, the cleaning mechanism can use wind power to blow away the dust and other impurities remaining on the stamping groove and the top plate before and after the stamping of the PMI foam parts. This can effectively prevent dust and other impurities from adhering to the surface of the PMI foam parts and affecting the quality of the finished product during subsequent use. When the dust and other impurities are blown away from the stamping groove and the top plate, the baffle can block them to prevent them from flying around. The dust and other impurities can fall into the dust collection trough along the baffle. The dust and other impurities can be recycled through the dust collection trough for subsequent unified cleaning.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a front structural diagram of a PMI foam molding and stamping device according to the present invention;

[0022] Figure 2 This is a schematic diagram of the back structure of a PMI foam molding and stamping device according to the present invention;

[0023] Figure 3 This is a schematic diagram of the stamping table in this utility model;

[0024] Figure 4 This is a schematic diagram of the positioning component in this utility model;

[0025] Figure 5 This is a schematic diagram of the demolding mechanism in this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the buffer pad in this utility model;

[0027] Figure 7 This is a schematic diagram of the front and back structure of the cleaning mechanism in this utility model.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Stamping table; 2. Support leg; 3. Lower die; 4. Positioning groove; 5. Stamping groove; 6. Bracket; 7. Bracket; 8. Fixing frame; 9. Baffle; 10. Ash collection trough; 11. Electric telescopic rod; 12. Positioning plate; 13. Cylinder; 14. Ejector plate; 15. Buffer pad; 16. Hydraulic cylinder; 17. Stamping plate; 18. Upper die; 19. Air guide chamber; 20. Motor; 21. Air guide duct; 22. Fan blade; 23. Protective pad; 24. Slot; 25. Limiting plate. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Please see Figure 1-7 As shown, a PMI foam molding stamping device of the present invention includes a stamping table 1, a plurality of support legs 2 fixedly connected to the bottom of the stamping table 1, and a lower mold 3 fixedly connected to the top of the stamping table 1. A positioning groove 4 is provided on the top surface of the lower mold 3, and a stamping groove 5 is provided in the middle of the bottom of the positioning groove 4. A pair of brackets 6 are fixedly connected to both ends of the positioning groove 4. The brackets 6 are symmetrically distributed on both sides of the stamping table 1, and a positioning component is installed on the brackets 6. A bracket 7 is fixedly connected to the bottom of the stamping table 1, and a demolding mechanism is provided on the bracket 7. A fixed frame 8 is provided on the rear side of the stamping table 1. The bottom of the fixed frame 8 is fixedly connected to the stamping table 1, and a stamping mechanism and a cleaning mechanism are respectively provided on the top and side of the fixed frame 8. A baffle 9 is fixedly connected to the front end of the stamping table 1, and a dust collection trough 10 is placed on the stamping table 1. The dust collection trough 10 is located directly below the baffle 9.

[0033] The positioning assembly includes an electric telescopic rod 11, which is mounted on a bracket 6. A positioning plate 12 is fixedly connected to the end of its output shaft. When the PMI foam part is placed on the lower mold 3, both ends of the PMI foam part can be respectively attached to the corresponding positioning grooves 4 on the top surface of the lower mold 3. By driving the electric telescopic rod 11, the positioning plate 12 can be driven to make linear movement. When the positioning plate 12 is respectively attached to the front and rear sides of the PMI foam part, the PMI foam part can be positioned by the clamping action of the positioning plate 12 to prevent it from shifting and warping during the stamping process, which would affect the stamping quality.

[0034] The demolding mechanism includes a cylinder 13, which is mounted on the upper surface of the bracket 7. The top of the cylinder 13's output shaft passes through the bottom of the stamping table 1 and the lower die 3 and is fixedly connected to an ejector plate 14. The ejector plate 14 is located within the stamping groove 5, and its top is equipped with several buffer pads 15. After the PMI foam part is stamped, the cylinder 13 drives the ejector plate 14, along with the formed PMI foam part, to move upwards until the PMI foam part is ejected from the stamping groove 5, thus achieving automatic demolding of the PMI foam part. Compared to the negative pressure suction method, the top plate 14 can fully contact and adhere to the PMI foam part to ensure that the PMI foam part can be evenly stressed, thereby effectively avoiding the impact of uneven stress on the PMI foam part on the material handling efficiency. The buffer pad 15 can be made of elastic materials such as sponge. When the top plate 14 is attached to the bottom of the PMI foam part, the buffer pad 15 can play a role in buffering and absorbing energy to prevent the PMI foam part from directly contacting the top plate 14 during demolding and material handling, thus preventing collision and wear.

[0035] The stamping mechanism includes a hydraulic cylinder 16, which is mounted on the top of the fixed frame 8. The bottom end of its output shaft is fixedly connected to a stamping plate 17, and the bottom of the stamping plate 17 is fixedly connected to an upper die 18. By driving the hydraulic cylinder 16, the stamping plate 17 and the upper die 18 can be moved downward together. When the upper die 18 comes into contact with the PMI foam part, the pressure applied by the upper die 18 can be used to press the PMI foam part into the stamping groove 5 until the PMI foam part and the stamping groove 5 are tightly fitted together, so as to realize the forming stamping of the PMI foam part.

[0036] The cleaning mechanism includes an air guide chamber 19 and a motor 20. The air guide chamber 19 and the motor 20 are respectively installed on the front and rear faces of the fixed frame 8. Several air guide pipes 21 are fixedly connected to the front face of the air guide chamber 19. The output shaft of the motor 20 passes through the side wall of the fixed frame 8 and extends into the air guide chamber 19. Several fan blades 22 are installed on the output shaft of the motor 20. By driving the motor 20, each fan blade 22 can be rotated to blow air. The air blown by the fan blades 22 can be blown towards the stamping groove 5 through each air guide pipe 21, so as to blow away the dust and other impurities remaining on the stamping groove 5 and the top plate 14. This can effectively prevent dust and other impurities from adhering to the surface of the PMI foam parts during subsequent use and affecting the quality of the finished product.

[0037] Both the stamping groove 5 and the positioning groove 4 are rectangular, and the depth of the stamping groove 5 is greater than the depth of the positioning groove 4. The upper die 18 is located directly above the stamping groove 5, and the length and width of the upper die 18 correspond to the length and width of the stamping groove 5, respectively. During stamping, the upper die 18 can be precisely extended into the stamping groove 5 and fit tightly with the stamping groove 5, thereby effectively preventing gaps between the upper die 18 and the stamping groove 5 from affecting the stamping accuracy of the PMI foam parts.

[0038] The positioning plates 12 are symmetrically distributed on both sides of the positioning groove 4 and are parallel to the positioning groove 4. A protective pad 23 is provided on the surface of the positioning plates 12. The protective pad 23 can be made of elastic materials such as rubber and is fixed by adhesives. When the PMI foam part is clamped and positioned by the positioning plates 12, it can ensure that the PMI foam part can remain parallel to the positioning groove 4 to avoid its position shift. At the same time, the protective pad 23 can play a flexible protection role to prevent the surface of the PMI foam part from directly contacting the positioning plates 12 and causing collision and wear.

[0039] The top plate 14 is rectangular, with its length and width corresponding to the length and width of the stamping groove 5, respectively. The top surface of the top plate 14 has several rectangular slots 24, which are equidistantly distributed along the length of the top plate 14. The buffer pad 15 is rectangular, with its length and width corresponding to the length and width of the slots 24, respectively. The surface of the buffer pad 15 is provided with herringbone anti-slip texture. The buffer pad 15 can be inserted into and attached to the inner wall of the slot 24 for fixing by plugging. The anti-slip texture can increase the friction between the PMI foam part and the top plate 14 to prevent the PMI foam part from slipping during demolding. When the buffer pad 15 is damaged, it can be removed from the slot 24 for quick replacement of the damaged PMI foam part.

[0040] One end of the air guide pipe 21 is connected to the inner cavity of the air guide chamber 19, and they are distributed in an equidistant linear array along the length and width of the air guide chamber 19. The center of each air guide pipe 21 corresponds to the center of the stamping groove 5. The blowing range can be expanded by multiple air guide pipes 21, and the air direction can be directed towards the stamping groove 5 and the top plate 14, so as to ensure that dust and other impurities on the stamping groove 5 and the top plate 14 can be completely blown away.

[0041] The baffle 9 is C-shaped, with its top and bottom surfaces aligned with the top and bottom surfaces of the stamping trough 5, respectively. The dust collection trough 10 is rectangular, with its length and width exceeding those of the baffle 9. A pair of limiting plates 25 are fixedly connected to the top of the stamping table 1. These limiting plates 25 are symmetrically distributed at both ends of the baffle 9, with their spacing equal to the length of the dust collection trough 10. The limiting plates 25 can limit the position of the dust collection trough 10, ensuring that it is positioned directly below the baffle 9. When dust and other impurities are blown away from the stamping trough 5 and the top plate 14, the baffle 9 acts as a barrier to prevent them from scattering and allows them to fall into the dust collection trough 10. The dust and other impurities can then be collected and recycled for subsequent cleaning.

[0042] The circuits, electronic components, and chip modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0043] All standard parts used in the application documents can be purchased from the market. All components in this application document can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The electrical components mentioned in this document are all electrically connected to the external main controller and power supply, and the main controller is a conventional known device that can play a control role.

[0044] The working principle of this utility model is as follows:

[0045] In use, this invention places the PMI foam part on the lower mold 3, with both ends of the part attached to the corresponding positioning grooves 4 on the top surface of the lower mold 3. Then, the electric telescopic rod 11 is driven to move the positioning plate 12 linearly until the positioning plate 12 is attached to the front and rear sides of the PMI foam part, thus positioning the part through its clamping action. Next, the hydraulic cylinder 16 is driven to move the stamping plate 17 and the upper mold 18 downwards. When the upper mold 18 contacts the PMI foam part, the pressure applied by the upper mold 18 presses the PMI foam part into the stamping groove 5 until the part is tightly fitted to the groove, thus achieving the forming stamping of the PMI foam part. After the stamping of the PMI foam part is completed, the cylinder 13 is driven to move the ejector plate 14 and the formed PMI foam part upwards until the part is ejected from the stamping groove 5, thus achieving automatic demolding of the PMI foam part. Compared to negative pressure suction, the top plate 14 can fully contact and adhere to the PMI foam parts to ensure that the PMI foam parts are evenly stressed. This effectively avoids the impact of uneven stress on the PMI foam parts, which would affect the efficiency of material handling. Before and after stamping the PMI foam parts, the motor 20 can be driven to rotate each fan blade 22 to blow air. The air blown by the fan blades 22 can be blown towards the stamping groove 5 through each air guide pipe 21, so as to blow away the dust and other impurities remaining on the stamping groove 5 and the top plate 14. This can effectively prevent dust and other impurities from adhering to the surface of the PMI foam parts during subsequent use and affecting the quality of the finished product. When the dust and other impurities are blown away from the stamping groove 5 and the top plate 14, the baffle 9 can block them to prevent them from flying around. The dust and other impurities can fall into the dust collection trough 10 along the baffle 9. The dust and other impurities can be recycled through the dust collection trough 10 for subsequent unified cleaning.

[0046] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A PMI foam molding and stamping device, characterized in that, The device includes a stamping table, with several support legs fixedly connected to the bottom of the stamping table, and a lower die fixedly connected to the top of the stamping table. The top surface of the lower die has a positioning groove, and a stamping groove is formed in the middle of the bottom of the positioning groove. A pair of brackets are fixedly connected to both ends of the positioning groove. The brackets are symmetrically distributed on both sides of the stamping table, and positioning components are installed on the brackets. A bracket is fixedly connected to the bottom of the stamping table, and a demolding mechanism is provided on the bracket. A fixed frame is provided on the rear side of the stamping table, and the bottom of the fixed frame is fixedly connected to the stamping table. A stamping mechanism and a cleaning mechanism are respectively provided on the top and side of the fixed frame. A baffle is fixedly connected to the front end of the stamping table, and a dust collection trough is placed on the stamping table, with the dust collection trough located directly below the baffle. The positioning component includes an electric telescopic rod, which is mounted on a bracket and has a positioning plate fixedly connected to the end of its output shaft. The demolding mechanism includes a cylinder, which is installed on the upper bottom surface of the bracket. The top of its output shaft passes through the bottom of the stamping table and the lower die and is fixedly connected to a top plate. The top plate is located in the stamping groove and has several buffer pads on its top. The stamping mechanism includes a hydraulic cylinder, which is mounted on the top of the fixed frame. A stamping plate is fixedly connected to the bottom end of its output shaft, and an upper die is fixedly connected to the bottom of the stamping plate. The cleaning mechanism includes an air guide chamber and a motor. The air guide chamber and the motor are respectively installed on the front and rear faces of the fixed frame. Several air guide pipes are fixedly connected to the front face of the air guide chamber. The output shaft of the motor passes through the side wall of the fixed frame and extends into the air guide chamber. Several fan blades are installed on the output shaft of the motor.

2. The PMI foam molding and stamping device according to claim 1, characterized in that, Both the stamping groove and the positioning groove are rectangular, and the depth of the stamping groove is greater than the depth of the positioning groove. The upper die is located directly above the stamping groove, and the length and width of the upper die are equal to the length and width of the stamping groove, respectively.

3. The PMI foam molding and stamping device according to claim 1, characterized in that, The positioning plates are symmetrically distributed on both sides of the positioning groove and are parallel to the positioning groove, and a protective pad is provided on the surface of the positioning plates.

4. The PMI foam molding and stamping device according to claim 1, characterized in that, The top plate is rectangular, and its length and width correspond to the length and width of the stamping groove, respectively. The top surface of the top plate has several slots, which are rectangular and are distributed linearly at equal intervals along the length of the top plate. The buffer pad is rectangular, and its length and width correspond to the length and width of the slots, respectively. The surface of the buffer pad is provided with herringbone anti-slip texture.

5. A PMI foam molding and stamping device according to claim 1, characterized in that, One end of the air guide pipe is connected to the inner cavity of the air guide chamber, and they are distributed in an equidistant linear array along the length and width of the air guide chamber, with the center of each air guide pipe corresponding to the center of the stamping groove.

6. The PMI foam molding and stamping device according to claim 1, characterized in that, The baffle is C-shaped, with its top and bottom surfaces at the same height as the top and bottom surfaces of the stamping groove, respectively. The ash collection groove is rectangular, with its length and width greater than the length and width of the baffle, respectively. A pair of limiting plates are fixedly connected to the top of the stamping table. The limiting plates are symmetrically distributed at both ends of the baffle, and their spacing is equal to the length of the ash collection groove.

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