A punching processing apparatus for hydrophobic polyurethane sponge and a method of using the same

Abstract

The application belongs to the technical field of punching processing, and particularly relates to a punching processing equipment for hydrophobic polyurethane sponge and a use method thereof, which comprises a sectional punching mechanism, a multifunctional airflow control mechanism, a double-shaft rack and a main bottom plate, the sectional punching mechanism comprises a driving assembly and a pressing assembly, the driving assembly is arranged on the double-shaft rack, the pressing assembly is arranged on the driving assembly, and the pressing assembly comprises a pressing block. Negative pressure generated by a negative pressure suction assembly can suck small chippings generated in punching into a chipping filtering box connected with a hose after the punching is completed, and can also enable large waste materials punched down to remain in the interior of the punching cutter and the pressing block.

Description

Technical Field

[0001] The invention belongs to the technical field of punching processing, and in particular relates to a punching processing device for hydrophobic polyurethane sponge and a use method thereof. Background Art

[0002] Polyurethane sponge has good elasticity, cushioning and support properties, and can be used to package and protect precision instruments and electronic products. During packaging, the semi-finished product of the material is a roll material of a specific thickness. However, since most of the surfaces of the above-mentioned instruments have uneven areas such as plugs and wires, it is necessary to punch holes in specific positions of the sponge. Since the sponge is soft and has a certain thickness, it is easy to slide horizontally before the tool is about to contact the base plate. Moreover, since the squeezed sponge has accumulated elastic force at this time, once it deviates, the offset will be too large. Therefore, in addition to heated punching, the current common practice in the industry is generally to first extrude the area near the target position into a thin layer, which can significantly improve the stability and success rate when punching.

[0003] Due to the compressibility of the sponge and the generally sloped surface of the cutting edge of the punching knife, the punched waste is easily retained in the punched hole and is difficult to fall off naturally. Generally, a separate cleaning process is required later. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a punching processing equipment for hydrophobic polyurethane sponge and a method of using the same. This solution uses the negative pressure generated by the negative pressure suction component. After the punching is completed, on the one hand, the small debris generated by the punching can be sucked into the debris filter box connected to the hose, and on the other hand, the large pieces of waste material punched out can be retained inside the punching knife and the pressing block; and through the relative movement between the punching knife and the convex button, after the segmented punching mechanism absorbs the waste material, the negative pressure suction component is automatically closed, so that the waste material is naturally separated from the pressing block and blown to the mesh baffle through the air nozzle.

[0005] Not only that, the present invention also makes full use of the multifunctional reuse of the air pump. There are low-pressure and high-pressure areas at both ends of the air pump. The low-pressure area can be used for product limiting, debris collection and temporary storage of waste at the same time; the high-pressure area can push the waste to offset and achieve the technical purpose of collecting waste.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes a punching processing equipment for hydrophobic polyurethane sponge, including a segmented punching mechanism, a multifunctional airflow control mechanism, a dual-axis frame and a main base plate, the segmented punching mechanism includes a driving assembly and a clamping assembly, the driving assembly is arranged on the dual-axis frame, the clamping assembly is arranged on the driving assembly, and the clamping assembly includes a clamping block.

[0007] Furthermore, the drive assembly also includes a square seat, a drive motor and an internally threaded sleeve. The square seat is arranged on a dual-axis frame, the drive motor is arranged on the square seat, a screw rod is provided on the output shaft of the drive motor, and the internally threaded sleeve is slidably engaged in the square seat. The screw rod and the internally threaded sleeve are threadedly connected, the punching knife is fixed to the bottom of the internally threaded sleeve, and the internally threaded sleeve and the punching knife are coaxially arranged.

[0008] Preferably, the clamping assembly further includes a return spring and a metal sleeve, the metal sleeve is axially slidably arranged on the outside of the punching knife, the return spring is arranged between the punching knife and the metal sleeve, and the clamping block is fixed to the outside of the metal sleeve.

[0009] By driving the punching knife longitudinally with a driving motor, a larger range of polyurethane sponge products can be pressed by the pressing block first, so that it is transformed from a fluffy state into a thin layer before punching, thereby avoiding the problem of excessive processing errors caused by product deformation during direct punching.

[0010] Furthermore, the multifunctional airflow control mechanism includes an air pump, a negative pressure material suction component and an airflow circulation component, the air pump is arranged on the main base plate, the negative pressure material suction component is arranged in an annular shape in the compression block, and the airflow circulation component is arranged on the main base plate;

[0011] Preferably, the negative pressure suction assembly includes a negative pressure grid and a grid baffle, the negative pressure grid is fixed in the compression block, the compression block is provided with a hose connected to the air inlet side of the air pump, the grid baffle is snap-fitted and slidably arranged in the negative pressure grid, an elastic rope is provided between the grid baffle and the negative pressure grid, and a protruding button is provided on the top of the grid baffle.

[0012] When the negative pressure grid is opened, a low-pressure area can be formed in the compression block. On the one hand, it can suck the small debris produced by punching into the debris filter box connected to the hose; on the other hand, it can also allow the large pieces of waste punched out to remain inside the punching knife and the compression block, eliminating the need for subsequent cleaning steps if they remain in the product.

[0013] As a further preferred embodiment of the present invention, the driving assembly includes a punching knife, which can drive the convex button to rise together after contacting the convex button, and a filter box for collecting debris is provided between the hose and the air pump.

[0014] By raising and lowering the punching knife, the negative pressure suction component can be automatically opened and closed according to the current working stage of the device. Therefore, during the punching process, the air source provided by the air pump originally used to limit the position of the product is used to achieve the technical effect of controlling the automatic adsorption and release of waste materials.

[0015] Preferably, the air circulation assembly includes a mesh bottom plate, a negative pressure air chamber, and an air nozzle. The mesh bottom plate is snap-fitted into the notch of the main bottom plate. The negative pressure air chamber is fixedly attached to the bottom of the main bottom plate and is located directly below the mesh bottom plate. The negative pressure air chamber is connected to the air intake side of the air pump via a hose, and the air nozzle is connected to the air exhaust side of the air pump via a pipe. As a further preferred embodiment of the present invention, the air circulation assembly also includes a mesh baffle, which is fixedly attached to one side of the main bottom plate. The mesh baffle and the air nozzle are arranged opposite each other, and a waste collection box is provided below the mesh baffle.

[0016] There are low-pressure and high-pressure areas at both ends of the air pump. The low-pressure area can be used for product limiting, debris collection and temporary storage of waste; the high-pressure area can push the waste to deflect and achieve the technical purpose of collecting waste.

[0017] Furthermore, the dual-axis frame includes a Z-axis assembly and an X-axis assembly, the Z-axis assembly is arranged on the main base plate, and the X-axis assembly is arranged on the Z-axis assembly.

[0018] The basic position movement of the square seat can be controlled by the dual-axis frame, and the punching processing at different positions can be realized by coordinating the translation of the workpiece itself.

[0019] Preferably, the Z-axis assembly includes a gantry frame, a lifting beam, a Z-axis cylinder and a biaxial connecting piece. The gantry frame is arranged on the main base plate, the lifting beam is longitudinally slidably arranged in the gantry frame, the outer shell of the Z-axis cylinder is fixed to the gantry frame through the base, the biaxial connecting piece is fixed to the lifting beam, and the telescopic rod of the Z-axis cylinder is arranged on the biaxial connecting piece.

[0020] As a further preferred embodiment of the present invention, the X-axis assembly includes an X-axis slider and an X-axis push rod, the X-axis slider is slidably engaged on the lifting beam, the outer shell of the X-axis push rod is fixedly connected to the X-axis slider through the base, the telescopic rod of the X-axis push rod is provided on the dual-axis connecting piece, and the square seat is fixedly connected to the X-axis slider.

[0021] The present invention also provides a method for using a punching processing device for a hydrophobic polyurethane sponge, which specifically comprises the following steps:

[0022] Step 1: The polyurethane sponge on the main base plate is laid flat. The product is stationary during punching. After punching is completed, the product moves horizontally to change the punching position. After starting the machine, the Z-axis cylinder extends and lowers the lifting beam, and the segmented punching mechanism moves down from the origin to the preparatory position. The lateral distance of the segmented punching mechanism can be adjusted by the extension and retraction of the X-axis push rod. In conjunction with the translation of the product itself, punching processing at different positions can be achieved. At the same time, the air pump is started. The negative pressure inside the negative pressure chamber can absorb the product and make it fit on the mesh base plate. At the same time, air is ejected from the air nozzle toward the mesh baffle.

[0023] Step 2: After the segmented blanking mechanism moves to the correct position, the drive motor is started. The screw and the internal threaded sleeve are driven to extend from the square seat, and the pressing assembly is lowered together. When the pressing block contacts the product, it will squeeze the product longitudinally until the product is compressed from a fluffy state to a thin layer.

[0024] Step 3: The drive motor continues to rotate. At this time, since the pressing block and the metal sliding sleeve can no longer descend, the punching knife will slide in the pressing block. At this time, the return spring is stretched and stores elastic potential energy. During this process, although the punching knife can contact the convex button, the grid baffle is already in the closed position, so the descent of the punching knife cannot move the convex button. When the bottom of the punching knife contacts the product that has been squeezed into layers, the product can be punched;

[0025] Step 4: After the punching is completed, the drive motor rotates in the opposite direction. First, the punching knife will rise while the pressing block remains stationary. At this time, the punching knife pushes the convex button and brings the grid baffle up together, thereby opening the negative pressure grid. When the airflow enters the negative pressure grid, a low-pressure area is formed inside the pressing block. On the one hand, it can suck the small debris generated by the punching into the debris filter box connected to the hose. On the other hand, it can also keep the large pieces of waste punched out inside the punching knife and the pressing block.

[0026] Step 5: As the punching knife rises, the return spring gradually resets. When the return spring returns to a free state, the clamping assembly rises along with the punching knife and leaves the product. During this process, the convex button is still in contact with the side of the punching knife, so the negative pressure grid remains open.

[0027] Step 6: As the punching knife continues to retract, when the metal sleeve touches the bottom edge of the square seat, the punching knife continues to retract, and the reset spring will be compressed. At this time, the punching knife and the convex button are separated, and the grid baffle will reset and close under the elastic force of the elastic rope. After losing the negative pressure adsorption, the waste in the compression block will fall naturally and move to the mesh baffle under the push of the airflow ejected from the air nozzle. After hitting the mesh baffle, it will fall into the waste collection box below.

[0028] The beneficial effects achieved by the present invention using the above structure are as follows:

[0029] (1) By driving the punching knife longitudinally with a driving motor, a larger range of polyurethane sponge products can be pressed by a pressing block, so that it changes from a fluffy state to a thin layer before punching, thereby avoiding the problem of excessive processing errors caused by product deformation during direct punching.

[0030] (2) When the negative pressure grid is turned on, a low-pressure area can be formed in the compression block. On the one hand, the small debris generated by punching can be sucked into the debris filter box connected to the hose; on the other hand, the large pieces of waste punched out can be retained inside the punching knife and the compression block, eliminating the need for subsequent cleaning steps when the waste remains in the product.

[0031] (3) By raising and lowering the punching knife, the negative pressure suction component can be automatically opened and closed according to the current working stage of the device. Thus, during the punching process, the air source provided by the air pump originally used to limit the position of the product can achieve the technical effect of controlling the automatic adsorption and release of waste materials.

[0032] (4) There are low-pressure and high-pressure areas at both ends of the air pump. The low-pressure area can be used for product positioning, debris collection and temporary storage of waste at the same time; the high-pressure area can push the waste to deflect and achieve the technical purpose of collecting waste.

[0033] (5) The basic position movement of the square seat can be controlled by the dual-axis frame, and the blanking processing at different positions can be realized by coordinating the translation of the workpiece itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A three-dimensional diagram of a punching processing device for a hydrophobic polyurethane sponge proposed by the present invention;

[0035] Figure 2 This is a front view of a punching processing device for a hydrophobic polyurethane sponge proposed by the present invention;

[0036] Figure 3 This is a left side view of a punching processing device for a hydrophobic polyurethane sponge proposed by the present invention;

[0037] Figure 4 A top view of a punching processing device for a hydrophobic polyurethane sponge proposed by the present invention;

[0038] Figure 5 for Figure 3 A cross-sectional view along the cutting line AA;

[0039] Figure 6 for Figure 2 A cross-sectional view along the cutting line BB;

[0040] Figure 7 A schematic diagram of a half-section structure of a punching processing device for a hydrophobic polyurethane sponge proposed in the present invention;

[0041] Figure 8 for Figure 5 A partial enlarged view of point Ⅰ in the middle;

[0042] Figure 9 for Figure 7 A partial enlarged view of the middle II;

[0043] Figure 10 for Figure 6 A partial enlarged view of point III in the middle;

[0044] Figure 11 Schematic diagram of the position of the punching knife at different stages.

[0045] Among them, 1. paragraph-type punching mechanism, 2. multi-functional air flow control mechanism, 3. dual-axis frame, 4. main base plate, 5. drive assembly, 6. clamping assembly, 7. square seat, 8. drive motor, 9. punching knife, 10. clamping block, 11. metal slide, 12. return spring, 13. screw rod, 14. internal thread sleeve, 15. air pump, 16. negative pressure suction assembly, 17. air circulation assembly, 18. negative pressure grid, 19. grid baffle, 20. mesh base plate, 21. negative pressure air chamber, 22. air nozzle, 23. mesh baffle, 24. elastic rope, 25. convex button, 26. Z-axis assembly, 27. X-axis assembly, 28. gantry frame, 29. lifting beam, 30. Z-axis cylinder, 31. dual-axis connector, 32. X-axis slider, 33. X-axis push rod, 34. hose.

[0046] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0048] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0049] like Figures 1 to 10 As shown, the present invention proposes a punching processing equipment for hydrophobic polyurethane sponge, including a segmented punching mechanism 1, a multifunctional airflow control mechanism 2, a dual-axis frame 3 and a main base plate 4, the segmented punching mechanism 1 includes a driving component 5 and a clamping component 6, the driving component 5 is arranged on the dual-axis frame 3, the clamping component 6 is arranged on the driving component 5, and the clamping component 6 includes a clamping block 10.

[0050] The dual-axis frame 3 includes a Z-axis assembly 26 and an X-axis assembly 27 . The Z-axis assembly 26 is arranged on the main base plate 4 , and the X-axis assembly 27 is arranged on the Z-axis assembly 26 .

[0051] The basic position movement of the square seat 7 can be controlled by the dual-axis frame 3, and the punching processing at different positions can be realized in conjunction with the translation of the workpiece itself.

[0052] The Z-axis assembly 26 includes a gantry frame 28, a lifting beam 29, a Z-axis cylinder 30 and a biaxial connecting piece 31. The gantry frame 28 is arranged on the main base plate 4, the lifting beam 29 is longitudinally slidably arranged in the gantry frame 28, the outer shell of the Z-axis cylinder 30 is fixedly connected to the gantry frame 28 through the base, the biaxial connecting piece 31 is fixedly connected to the lifting beam 29, and the telescopic rod of the Z-axis cylinder 30 is arranged on the biaxial connecting piece 31.

[0053] The X-axis assembly 27 includes an X-axis slider 32 and an X-axis push rod 33. The X-axis slider 32 is engaged and slidably arranged on the lifting beam 29. The outer shell of the X-axis push rod 33 is fixed to the X-axis slider 32 through the base. The telescopic rod of the X-axis push rod 33 is arranged on the dual-axis connecting member 31, and the square seat 7 is fixed to the X-axis slider 32.

[0054] The driving assembly 5 also includes a square seat 7, a driving motor 8 and an internally threaded sleeve 14. The square seat 7 is arranged on the dual-axis frame 3, the driving motor 8 is arranged on the square seat 7, and a screw rod 13 is provided on the output shaft of the driving motor 8. The internally threaded sleeve 14 is engaged and slidably arranged in the square seat 7. The screw rod 13 and the internally threaded sleeve 14 are threadedly connected. The punching knife 9 is fixedly connected to the bottom of the internally threaded sleeve 14, and the internally threaded sleeve 14 and the punching knife 9 are coaxially arranged.

[0055] The clamping assembly 6 also includes a return spring 12 and a metal sleeve 11. The metal sleeve 11 is axially slidably arranged on the outside of the punching knife 9. The return spring 12 is arranged between the punching knife 9 and the metal sleeve 11. The clamping block 10 is fixed to the outside of the metal sleeve 11.

[0056] By driving the punching knife 9 longitudinally by the driving motor 8, a larger range of polyurethane sponge products can be pressed by the pressing block 10, so that it is transformed from a fluffy state to a thin layer before punching, thereby avoiding the problem of excessive processing errors caused by product deformation during direct punching.

[0057] The multifunctional airflow control mechanism 2 includes an air pump 15, a negative pressure suction component 16 and an airflow circulation component 17. The air pump 15 is provided on the main base plate 4. The negative pressure suction component 16 is annularly arranged in the compression block 10. The airflow circulation component 17 is provided on the main base plate 4.

[0058] The negative pressure suction assembly 16 includes a negative pressure grid 18 and a grid baffle 19. The negative pressure grid 18 is fixedly connected to the compression block 10. The compression block 10 is provided with a hose 34 connected to the air inlet side of the air pump 15. The grid baffle 19 is snap-fitted and slidably arranged in the negative pressure grid 18. An elastic rope 24 is provided between the grid baffle 19 and the negative pressure grid 18, and a protruding button 25 is provided on the top of the grid baffle 19.

[0059] When the negative pressure grid 18 is opened, a low-pressure area can be formed in the pressing block 10. On the one hand, the small debris generated by punching can be sucked into the debris filter box connected to the hose 34; on the other hand, the large pieces of waste punched out can be retained inside the punching knife 9 and the pressing block 10, eliminating the need for subsequent cleaning steps when the waste remains in the product.

[0060] The driving assembly 5 includes a punching knife 9 . After the punching knife 9 contacts the convex button 25 , it can drive the convex button 25 to rise together. A filter box for collecting debris is provided between the hose 34 and the air pump 15 .

[0061] By raising and lowering the punching knife 9, the negative pressure suction component 16 can be automatically opened and closed according to the current working stage of the device. Therefore, during the punching process, the air source provided by the air pump 15 originally used to limit the position of the product is used to achieve the technical effect of controlling the automatic adsorption and release of waste materials.

[0062] The air circulation assembly 17 includes a mesh base 20, a negative pressure chamber 21, and an air nozzle 22. The mesh base 20 is snap-fitted into a notch in the main base 4. The negative pressure chamber 21 is affixed to the bottom of the main base 4 and located directly below the mesh base 20. The negative pressure chamber 21 is connected to the air intake of the air pump 15 via a hose 34, and the air nozzle 22 is connected to the exhaust of the air pump 15 via a pipe. The air circulation assembly 17 also includes a mesh baffle 23, which is affixed to one side of the main base 4. The mesh baffle 23 and the air nozzle 22 are arranged opposite each other. A waste collection box is located below the mesh baffle 23.

[0063] There are low-pressure and high-pressure areas at both ends of the air pump 15. The low-pressure area can be used for product limiting, debris collection and temporary storage of waste; the high-pressure area can push the waste to deflect and achieve the technical purpose of collecting waste.

[0064] like Figure 11 As shown, a, b, c, d, and e respectively represent the landmark positions of the punching knife 9 during the lifting process, and A, B, C, and D represent the stages between the above-mentioned landmark positions, wherein:

[0065] a represents the origin position of the punching knife 9. At this time, the Z-axis cylinder 30 is fully retracted, and the internal threaded sleeve 14 is also fully retracted. At this time, the overall height of the segmented punching mechanism 1 is the highest, the space below is the largest, and the safety is the highest. It is generally located at this position during shutdown, maintenance, and material replacement operations.

[0066] b represents the preparatory position of the punching knife 9, at which point the Z-axis cylinder 30 is fully extended and the internal threaded sleeve 14 is fully retracted. At this point, the segmented punching mechanism 1 has been lowered as a whole to a position close to the product, but there is still sufficient space below for moving the product and collecting waste.

[0067] c represents the position of the punching knife 9 when the pressing block 10 just contacts the product;

[0068] d represents the position of the punching knife 9 when the pressing block 10 compresses the product into a thin layer;

[0069] e represents the position where the punching knife 9 contacts the mesh bottom plate 20;

[0070] When the punching knife 9 is descending, the negative pressure suction component 16 always remains in a closed state;

[0071] When the punching knife 9 rises in stage D, the punching knife 9 rises relative to the pressing block 10, changing the negative pressure suction component 16 from the closed state to the open state;

[0072] When the punching knife 9 rises in stages B and C, the punching knife 9 and the pressing block 10 rise together. During this process, the convex button 25 is still in contact with the outer wall of the punching knife 9, so the negative pressure suction component 16 remains in the open state;

[0073] When the punching knife 9 is close to position b, the metal sleeve 11 rests against the lower edge of the square seat 7. After that, the punching knife 9 rises slightly relative to the pressing block 10, separating the punching knife 9 and the convex button 25. The grid baffle 19 will be reset under the elastic force of the elastic rope 24 and the negative pressure suction component 16 will be closed.

[0074] During specific use, the polyurethane sponge located on the main base plate 4 is in a flat state. The product is stationary during punching. After punching is completed, the product is translated to change the punching position. After starting the machine, the Z-axis cylinder 30 extends and lowers the lifting beam 29, and lowers the segmented punching mechanism 1 from the origin position to the preparatory position. The lateral distance of the segmented punching mechanism 1 can be adjusted by the extension and contraction of the X-axis push rod 33. Combined with the translation of the product itself, punching processing at different positions can be achieved. At the same time, the air pump 15 is started, and the negative pressure inside the negative pressure chamber 21 can adsorb the product and make it fit on the mesh base plate 20. At the same time, the air flow is ejected from the air nozzle 22 toward the mesh baffle 23; since the product has been adsorbed on the mesh base plate 20, the air flow blown out by the air nozzle 22 will not cause the product to warp or shift.

[0075] After the segmented blanking mechanism 1 moves to the correct position, the drive motor 8 is started, and the internally threaded sleeve 14 is driven to extend from the square seat 7 through the cooperation of the screw rod 13 and the internally threaded sleeve 14, while simultaneously lowering with the pressing assembly 6. When the pressing block 10 contacts the product, it will longitudinally squeeze the product until the product is compressed from a fluffy state to a thin layer. This squeezing area is significantly larger than the area of ​​the blanking knife 9, thus preventing deformation of the cutting position.

[0076] The driving motor 8 continues to rotate. At this time, since the clamping block 10 and the metal sleeve 11 can no longer descend, the punching knife 9 will slide in the clamping block 10. At this time, the return spring 12 is stretched and stores elastic potential energy. Although the punching knife 9 can contact the convex button 25 during this process, the grid baffle 19 is already in the closed position, and the descent of the punching knife 9 cannot move the convex button 25. When the bottom of the punching knife 9 contacts the product that has been squeezed into layers, the product can be punched.

[0077] After the punching is completed, the drive motor 8 rotates in the reverse direction. First, the punching knife 9 rises while the pressing block 10 remains stationary. At this time, the punching knife 9 pushes the convex button 25 and brings the grid baffle 19 up together, thereby opening the negative pressure grid 18. When the airflow enters the negative pressure grid 18, a low-pressure area is formed inside the pressing block 10. On the one hand, it can suck the small debris generated by the punching into the debris filter box connected to the hose 34. On the other hand, it can also keep the large pieces of waste punched out inside the punching knife 9 and the pressing block 10.

[0078] When the punching knife 9 rises, the return spring 12 gradually resets. When the return spring 12 returns to a free state, the clamping assembly 6 will rise together with the punching knife 9 and leave the product. During this process, the convex button 25 is still in contact with the side of the punching knife 9, so the negative pressure grid 18 remains open.

[0079] As the punching knife 9 continues to retract, when the metal sleeve 11 rests against the bottom edge of the square seat 7, the punching knife 9 continues to retract, and the reset spring 12 will be slightly compressed. At this time, the punching knife 9 continues to rise relative to the clamping block 10 and separates from the convex button 25. Then the grid baffle 19 will reset and close under the elastic force of the elastic rope 24. After losing the negative pressure adsorption, the waste located in the clamping block 10 will fall naturally and move to the mesh baffle 23 under the push of the airflow ejected from the air nozzle 22, and fall into the waste collection box below after hitting the mesh baffle 23.

[0080] As another embodiment of the present invention, two groups of Z-axis cylinders 30 may be symmetrically arranged. The number of Z-axis cylinders 30 needs to be comprehensively selected based on the span of the lifting beam 29 and the rigidity requirements of the equipment.

[0081] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0082] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A punching processing device for hydrophobic polyurethane sponge, characterized in that: The invention comprises a segmented blanking mechanism (1), a multifunctional airflow control mechanism (2), a double-axis frame (3) and a main base plate (4); the segmented blanking mechanism (1) comprises a driving component (5) and a pressing component (6); the driving component (5) is arranged on the double-axis frame (3); the pressing component (6) is arranged on the driving component (5); and the pressing component (6) comprises a pressing block (10); The multifunctional airflow control mechanism (2) comprises an air pump (15), a negative pressure material suction component (16) and an airflow circulation component (17), wherein the air pump (15) is arranged on the main base plate (4), the negative pressure material suction component (16) is arranged in a ring shape in the compression block (10), and the airflow circulation component (17) is arranged on the main base plate (4); The negative pressure material suction assembly (16) includes a negative pressure grid (18) and a grid baffle (19), wherein the negative pressure grid (18) is fixedly connected to the compression block (10), and the compression block (10) is provided with a hose (34) connected to the air inlet side of the air pump (15), and the grid baffle (19) is slidably engaged in the negative pressure grid (18), and an elastic rope (24) is provided between the grid baffle (19) and the negative pressure grid (18), and a convex button (25) is provided on the top of the grid baffle (19); The driving assembly (5) includes a punching knife (9), which can drive the convex button (25) to rise together after contacting the convex button (25). A filter box for collecting debris is provided between the hose (34) and the air pump (15).

2. The punching processing equipment for hydrophobic polyurethane sponge according to claim 1, characterized in that: The airflow circulation component (17) includes a mesh bottom plate (20), a negative pressure air chamber (21) and an air nozzle (22), wherein the mesh bottom plate (20) is engaged with a notch of the main bottom plate (4), the negative pressure air chamber (21) is fixed to the bottom of the main bottom plate (4), and the negative pressure air chamber (21) is located directly below the mesh bottom plate (20). The negative pressure air chamber (21) is connected to the air inlet side of the air pump (15) through a hose (34), and the air nozzle (22) is connected to the exhaust side of the air pump (15) through a pipeline.

3. The punching processing equipment for a hydrophobic polyurethane sponge according to claim 2, characterized in that: The airflow circulation component (17) further comprises a mesh baffle (23), wherein the mesh baffle (23) is fixed to one side of the main bottom plate (4), the mesh baffle (23) and the air nozzle (22) are arranged opposite to each other, and a waste collection box is arranged below the mesh baffle (23).

4. The punching processing equipment for hydrophobic polyurethane sponge according to claim 3, characterized in that: The clamping assembly (6) further includes a return spring (12) and a metal sleeve (11), wherein the metal sleeve (11) is axially slidably arranged outside the punching knife (9), the return spring (12) is arranged between the punching knife (9) and the metal sleeve (11), and the clamping block (10) is fixed to the outside of the metal sleeve (11).

5. The punching processing equipment for hydrophobic polyurethane sponge according to claim 4, characterized in that: The driving assembly (5) further comprises a square seat (7), a driving motor (8) and an internally threaded sleeve (14); the square seat (7) is arranged on the dual-axis frame (3); the driving motor (8) is arranged on the square seat (7); a screw rod (13) is provided on the output shaft of the driving motor (8); the internally threaded sleeve (14) is slidably engaged in the square seat (7); the screw rod (13) and the internally threaded sleeve (14) are threadedly connected; the punching knife (9) is fixedly connected to the bottom of the internally threaded sleeve (14); and the internally threaded sleeve (14) and the punching knife (9) are coaxially arranged.

6. The punching processing equipment for hydrophobic polyurethane sponge according to claim 5, characterized in that: The dual-axis frame (3) comprises a Z-axis assembly (26) and an X-axis assembly (27), wherein the Z-axis assembly (26) is arranged on the main base plate (4), and the X-axis assembly (27) is arranged on the Z-axis assembly (26).

7. The punching processing equipment for hydrophobic polyurethane sponge according to claim 6, characterized in that: The Z-axis assembly (26) includes a gantry frame (28), a lifting beam (29), a Z-axis cylinder (30) and a biaxial connecting member (31), wherein the gantry frame (28) is arranged on the main base plate (4), the lifting beam (29) is longitudinally slidably arranged in the gantry frame (28), the housing of the Z-axis cylinder (30) is fixed to the gantry frame (28) through a base, the biaxial connecting member (31) is fixed to the lifting beam (29), and the telescopic rod of the Z-axis cylinder (30) is arranged on the biaxial connecting member (31).

8. The punching processing equipment for hydrophobic polyurethane sponge according to claim 7, characterized in that: The X-axis assembly (27) includes an X-axis slider (32) and an X-axis push rod (33), wherein the X-axis slider (32) is slidably engaged on the lifting beam (29), the shell of the X-axis push rod (33) is fixedly connected to the X-axis slider (32) through a base, the telescopic rod of the X-axis push rod (33) is provided on the double-axis connecting member (31), and the square seat (7) is fixedly connected to the X-axis slider (32).

9. A method for using the punching processing equipment for hydrophobic polyurethane sponge according to claim 8, characterized in that: The steps include: Step 1: The polyurethane sponge on the main base plate (4) is in a flat state. The product is stationary during punching. After the punching is completed, the product is translated to change the punching position. After starting the machine, the Z-axis cylinder (30) extends and brings the lifting beam (29) down, and brings the segmented punching mechanism (1) down from the origin position to the preparation position. The lateral distance of the segmented punching mechanism (1) can be adjusted by the extension and contraction of the X-axis push rod (33). In conjunction with the translation of the product itself, punching processing at different positions can be achieved. At the same time, the air pump (15) is started, and the negative pressure inside the negative pressure chamber (21) can absorb the product and make it fit on the mesh base plate (20). At the same time, air flow is ejected from the air nozzle (22) toward the mesh baffle (23); Step 2: After the segmented blanking mechanism (1) moves to the correct position, the drive motor (8) is started, and the internal threaded sleeve (14) is driven to extend from the square seat (7) through the cooperation of the screw rod (13) and the internal threaded sleeve (14), while simultaneously lowering the pressing assembly (6). When the pressing block (10) contacts the product, it will longitudinally squeeze the product until the product is compressed from a fluffy state to a thin layer; Step 3: The driving motor (8) continues to rotate. At this time, since the pressing block (10) and the metal sliding sleeve (11) can no longer descend, the punching knife (9) will slide in the pressing block (10). At this time, the return spring (12) is stretched and stores elastic potential energy. During this process, although the punching knife (9) can contact the convex button (25), since the grid baffle (19) is already in the closed position, the descent of the punching knife (9) cannot move the convex button (25). When the bottom of the punching knife (9) contacts the product that has been squeezed into a layer, the product can be punched; Step 4: After the punching is completed, the drive motor (8) rotates in the reverse direction. First, the punching knife (9) rises while the pressing block (10) remains stationary. At this time, the punching knife (9) pushes the convex button (25) and rises with the grid baffle (19), thereby opening the negative pressure grid (18). When the airflow enters the negative pressure grid (18), a low pressure area is formed inside the pressing block (10). On the one hand, the small debris generated by the punching can be sucked into the debris filter box connected to the hose (34). On the other hand, the large pieces of waste material punched out can be retained inside the punching knife (9) and the pressing block (10); Step 5: When the punching knife (9) rises, the return spring (12) gradually returns to its original position. When the return spring (12) returns to its free state, the pressing assembly (6) rises together with the punching knife (9) and leaves the product. During this process, the convex button (25) is still in contact with the side of the punching knife (9), so the negative pressure grid (18) remains in the open state. Step 6: As the punching knife (9) continues to retract, when the metal sleeve (11) abuts against the bottom edge of the square seat (7), the punching knife (9) continues to retract, the return spring (12) will be compressed, and the punching knife (9) and the convex button (25) will separate. The grid baffle (19) will be reset and closed under the elastic force of the elastic rope (24). After losing the negative pressure adsorption, the waste in the pressing block (10) will fall naturally and move to the mesh baffle (23) under the push of the air flow ejected from the air nozzle (22). After hitting the mesh baffle (23), it falls into the waste collection box below.

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