TPU injection molding handle water gap cutting mechanism

Abstract

The utility model discloses a water gap cutting mechanism for a TPU injection molding handle. Comprising an oil cylinder, a guide rod, a guide shaft sleeve, a top plate, a fixing column, a connecting sleeve, a fixing plate, a pressing plate, a bottom plate, a right air cylinder support, a right air cylinder, a right connecting block, a platform plate, a right transmission rod, a supporting plate, a limiting plate, a right guide base, a right fixing block, a right cutter, a left cutter, a left fixing block, a left guide base, a left transmission rod, a left connecting block, a left air cylinder, a left air cylinder support, a TPU handle and a right limiting block. The inner side left limiting strip, the inner side right limiting strip, the limiting air cylinder, the supporting column, the air cylinder top plate, the air cylinder fixing plate, the limiting soft rubber plate, the inner side left limiting strip, the left limiting block and the water gap are arranged on the left side, and the water gap in the injection molding TPU handle is effectively cut off through movement of the left cutter and the right cutter. Compared with a traditional manual or laser water gap cutting mechanism, automation can be achieved conveniently, and the shape of the cutter can be adjusted according to the product appearance to meet the appearance and quality requirements of the water gap cutting part.

Description

Technical Field

[0001] This utility model relates to a sprue removal structure for plastic products, and more particularly to a sprue removal mechanism for TPU injection molded handles. It uses a cylinder-driven arc-shaped cutter to remove the sprue from the TPU handle. The structure is simple and easy to automate, which can effectively improve the processing efficiency of sprue removal in injection molded products and the surface quality of the sprue removal area. Background Technology

[0002] TPU handles are often used for lifting and moving medical devices and other equipment. When TPU handles are produced by injection molding, there will be residual sprue parts that need to be removed to obtain the handle product. In order to meet the requirements of ergonomics, TPU handles are often designed with irregular arc shapes. Traditional manual or laser cutting methods are used to remove the sprue. However, it is difficult to obtain the designed irregular arc shape at the sprue removal part of the handle. Utility Model Content

[0003] This utility model addresses the aforementioned technical challenges by providing a TPU injection-molded handle sprue removal mechanism, comprising a hydraulic cylinder, guide rod, guide bushing, top plate, fixed column, connecting sleeve, fixed plate, pressure plate, bottom plate, right cylinder support, right cylinder, right connecting block, platform plate, right transmission rod, support plate, limiting plate, right guide seat, right fixed block, right cutter, left cutter, left fixed block, left guide seat, left transmission rod, left connecting block, left cylinder, left cylinder support, TPU handle, right limiting block, inner right limiting strip, limiting cylinder, support column, cylinder top plate, cylinder fixing plate, limiting soft rubber plate, inner left limiting strip, and left limiting... The block and water inlet, the hydraulic cylinder is fixedly installed on the top plate, the front end of the hydraulic cylinder's telescopic rod is fixedly installed in the connecting sleeve, the guide bushing is fixedly installed on the top plate, the connecting sleeve is fastened to the fixed plate and the pressure plate, the guide rod can move up and down along the inner hole of the guide bushing; the fixed column is fastened between the top plate and the bottom plate, the platform plate is fixedly installed on the bottom plate, the right cylinder support, left cylinder support, right guide seat, left guide seat and support column are all fixed on the platform plate, the right cylinder is fixedly installed on the right cylinder support, the telescopic rod of the right cylinder is fixedly connected to the right connecting block, the right end of the right transmission rod is fixedly installed in the T-shaped groove opened on the right connecting block, the right guide seat A square hole with the same shape as the right drive rod is provided on the upper part of the guide seat. The right drive rod can slide left and right along the square hole on the right guide seat. The right cutter is fixedly installed on the right fixed block. The right fixed block is fixedly installed in the square hole on the left end of the right drive rod. The left cylinder is fixedly installed on the left cylinder support. The telescopic rod of the left cylinder is fixedly connected to the left connecting block. The left end of the left drive rod is fixedly installed in the T-shaped groove on the left connecting block. A square hole with the same shape as the left drive rod is provided on the left guide seat. The left drive rod can slide left and right along the square hole on the left guide seat. The left cutter is fixedly installed on the left fixed block. The left fixed block is fixedly installed in the square hole on the right end of the left drive rod. Inside the square hole; the support column is fixedly installed between the platform plate and the support plate; the limiting plate, right limiting block, inner right limiting strip, limiting cylinder, inner left limiting strip and left limiting block are all fixedly installed on the support plate; the cylinder top plate is fixedly connected to the telescopic rod of the limiting cylinder; the cylinder fixing plate and the limiting soft rubber plate are fixedly connected to the cylinder top plate; the pressure plate, support plate, limiting soft rubber plate, limiting plate, right limiting block, left limiting block, inner left limiting strip and inner right limiting strip are used for limiting and fixing the TPU handle when the TPU handle sprue is cut; the concave arc surface of the upper surface of the left cutter and the right cutter is consistent with the convex arc surface of the lower surface of the TPU handle.

[0004] The TPU handle is connected to the sprue during injection molding, and the TPU handle product is obtained after the sprue is cut off.

[0005] The beneficial effects of this utility model are as follows: The TPU injection molded handle sprue removal mechanism uses a cylinder to drive left and right cutters to remove the sprue on the injection molded TPU handle. The arc-shaped cutter can cut the handle shape at the sprue removal area into an arc shape, which facilitates the automatic removal of the sprue and ensures the appearance and surface quality of the handle. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the overall structure of the sprue removal mechanism for TPU injection molded handles.

[0007] Figure 2 This is a partial structural diagram of the sprue removal mechanism for a TPU injection molded handle.

[0008] Figure 3 This is a partial structural diagram of the sprue removal mechanism for a TPU injection molded handle.

[0009] Figure 4 This is a partial structural diagram of the sprue removal mechanism for a TPU injection molded handle.

[0010] Figure 5 This is a schematic diagram of the TPU handle without the sprue removed.

[0011] Figure 6 This is a structural diagram of a TPU handle product (after the sprue has been removed).

[0012] Figure 7 This is a schematic diagram of the left and right cutter structures of the sprue removal mechanism for a TPU injection molded handle.

[0013] The components include: 1. Hydraulic cylinder; 2. Guide rod; 3. Guide bushing; 4. Top plate; 5. Fixed column; 6. Connecting sleeve; 7. Fixed plate; 8. Pressure plate; 9. Base plate; 10. Right cylinder support; 11. Right cylinder; 12. Right connecting block; 13. Platform plate; 14. Right transmission rod; 15. Support plate; 16. Limiting plate; 17. Right guide seat; 18. Right fixed block; 19. Right cutter; 20. Left cutter; 2 1. Left fixed block; 22. Left guide seat; 23. Left transmission rod; 24. Left connecting block; 25. Left cylinder; 26. Left cylinder support; 27. TPU handle; 28. Right limit block; 29. ​​Inner right limit strip; 30. Limit cylinder; 31. Support column; 32. Cylinder top plate; 33. Cylinder fixing plate; 34. Limit soft rubber plate; 35. Inner left limit strip; 36. Left limit block; 37. Sprue. Detailed Implementation

[0014] As attached Figures 1-4As shown, a TPU injection-molded handle sprue cutting mechanism includes a hydraulic cylinder 1, a guide rod 2, a guide bushing 3, a top plate 4, a fixing column 5, a connecting sleeve 6, a fixing plate 7, a pressure plate 8, a bottom plate 9, a right cylinder support 10, a right cylinder 11, a right connecting block 12, a platform plate 13, a right transmission rod 14, a support plate 15, a limiting plate 16, a right guide seat 17, a right fixing block 18, a right cutter 19, a left cutter 20, a left fixing block 21, a left guide seat 22, a left transmission rod 23, a left connecting block 24, a left cylinder 25, a left cylinder support 26, a TPU handle 27, a right limiting block 28, an inner right limiting strip 29, a limiting cylinder 30, a support column 31, a cylinder top plate 32, a cylinder fixing plate 33, a limiting soft rubber plate 34, an inner left limiting strip 35, a left limiting block 36, and a sprue 37.

[0015] As attached Figures 1-4 After injection molding, the TPU handle 27 is connected to the sprue 37. When the sprue 37 is cut off, the TPU handle 27 and the sprue 37 are placed on the support plate 15. The telescopic rod of the hydraulic cylinder 1 moves downward, pushing the connecting sleeve 6, the fixing plate 7, the guide rod 2, and the pressure plate 8 downward together. The pressure plate 8 presses the TPU handle 27 down onto the support plate 15. The telescopic rod of the limiting cylinder 30 pushes the cylinder top plate 32, the cylinder fixing plate 33, and the limiting soft rubber plate 34 horizontally backward. The limiting soft rubber plate 34 presses the TPU handle 27 against the side wall of the limiting plate 16. The position of the TPU handle 27 is determined by the pressure plate 8, the limiting soft rubber plate 34, the support plate 15, the limiting plate 16, and the left side. Limiting block 36, right limiting block 28, inner left limiting strip 35 and inner right limiting strip 29 limit and fix them on support plate 15. The telescopic rod of left cylinder 25 extends horizontally to the right, pushing left connecting block 24, left transmission rod 23, left fixing block 21 and left cutter 20 to move horizontally to the right. The telescopic rod of right cylinder 11 extends horizontally to the left, pushing right connecting block 12, right transmission rod 14, right fixing block 18 and right cutter 19 to move horizontally to the left. Left cutter 20 and right cutter 19 move towards each other to cut off sprue 37 from TPU handle 27. After sprue 37 is cut off, the telescopic rods of cylinder 1, limiting cylinder 30, left cylinder 25 and right cylinder 11 retract, and the mechanism returns to its initial state.

[0016] As attached Figure 7 The concave arc surface on the upper surface of the left cutter 20 and the right cutter 19 shown is consistent with the convex arc surface on the lower surface of the TPU handle 27. After the sprue 37 is removed, the lower surface of the TPU handle 27 is convex arc surface.

[0017] As attached Figure 5 The TPU handle 27 shown is connected to the sprue 37 during injection molding. After the sprue 37 is removed, the TPU handle 27 product is obtained. The final TPU handle 27 product is shown in the attached figure. Figure 6 As shown.

[0018] A TPU injection molded handle sprue removal mechanism uses a cylinder to push left and right cutters to remove the sprue portion of the injection molded handle. The shape of the cutters can be processed to the corresponding surface shape of the designed handle to ensure the shape and surface quality of the handle surface at the sprue removal location.

[0019] The above description is a preferred embodiment of the present utility model and is intended to illustrate the content and concept of the present utility model. The content of this specification should not be construed as a limitation of the present utility model.

Claims

1. A TPU injection molded handle sprue cutting mechanism, comprising a hydraulic cylinder (1), a guide rod (2), a guide bushing (3), a top plate (4), a fixing column (5), a connecting sleeve (6), a fixing plate (7), a pressure plate (8), a bottom plate (9), a right cylinder support (10), a right cylinder (11), a right connecting block (12), a platform plate (13), a right transmission rod (14), a support plate (15), a limiting plate (16), a right guide seat (17), a right fixing block (18), a right cutter (19), and a left... The components include a cutter (20), a left fixing block (21), a left guide seat (22), a left transmission rod (23), a left connecting block (24), a left cylinder (25), a left cylinder support (26), a TPU handle (27), a right limiting block (28), an inner right limiting strip (29), a limiting cylinder (30), a support column (31), a cylinder top plate (32), a cylinder fixing plate (33), a limiting soft rubber plate (34), an inner left limiting strip (35), a left limiting block (36), and a sprue (37), characterized in that... The hydraulic cylinder (1) is fixedly installed on the top plate (4). The front end of the telescopic rod of the hydraulic cylinder (1) is fixedly installed in the connecting sleeve (6). The guide sleeve (3) is fixedly installed on the top plate (4). The connecting sleeve (6) is fastened to the fixing plate (7) and the pressure plate (8). The guide rod (2) can move up and down along the inner hole of the guide sleeve (3). The fixing column (5) is fastened between the top plate (4) and the bottom plate (9). The platform plate (13) is fixedly installed on the bottom plate (9). The right cylinder support (10), the left cylinder support (26), the right guide seat (17), the left guide seat (22) and the support column (31) are all fixed on the platform plate (13). The right cylinder (11) is fixedly installed on the right cylinder support. On the support (10), the telescopic rod of the right cylinder (11) is fixedly connected to the right connecting block (12), the right end of the right transmission rod (14) is fixedly installed in the T-shaped groove opened on the right connecting block (12), the right guide seat (17) has a square hole with the same shape as the right transmission rod (14), the right transmission rod (14) can slide left and right along the square hole on the right guide seat (17), the right cutter (19) is fixedly installed on the right fixed block (18), the right fixed block (18) is fixedly installed in the square hole opened on the left end of the right transmission rod (14), the left cylinder (25) is fixedly installed on the left cylinder support (26), the telescopic rod of the left cylinder (25) is fixedly connected to the left connecting block (24), the left transmission rod (19) is fixedly installed on the left cylinder support (26), the telescopic rod of the left cylinder (25) is fixedly connected to the left connecting block (24), the left transmission rod (19) is fixedly installed on the right fixed block (12), the right transmission rod (14) is fixedly installed on the right connecting ... The left end of the moving rod (23) is fixedly installed in the T-shaped groove opened on the left connecting block (24). The left guide seat (22) has a square hole with the same shape as the left transmission rod (23). The left transmission rod (23) can slide left and right along the square hole on the left guide seat (22). The left cutter (20) is fixedly installed on the left fixed block (21). The left fixed block (21) is fixedly installed in the square hole opened on the right end of the left transmission rod (23). The support column (31) is fixedly installed between the platform plate (13) and the support plate (15). The limiting plate (16), the right limiting block (28), the inner right limiting strip (29), the limiting cylinder (30), the inner left limiting strip (35), and the left limiting block (36) are also included. All are fixedly installed on the support plate (15). The cylinder top plate (32) is fixedly connected to the telescopic rod of the limiting cylinder (30). The cylinder fixing plate (33) and the limiting soft rubber plate (34) are fixedly connected to the cylinder top plate (32). The pressure plate (8), support plate (15), limiting soft rubber plate (34), limiting plate (16), right limiting block (28), left limiting block (36), inner left limiting strip (35) and inner right limiting strip (29) are used to limit and fix the TPU handle (27) when the TPU handle (27) sprue (37) is cut. The concave arc surface on the upper surface of the left cutter (20) and the right cutter (19) is consistent with the convex arc surface on the lower surface of the TPU handle (27).

2. The TPU injection molded handle sprue cutting mechanism according to claim 1, characterized in that, The TPU handle (27) is connected to the sprue (37) during injection molding. The TPU handle (27) product is obtained after the sprue (37) is cut off.

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