A high-precision surface treatment device for a foaming mold

Abstract

The present invention relates to the technical field of foaming molding processing, and specifically relates to a high-precision processing device for the surface of a foaming mold, which includes a bottom plate, side plates and a top plate. A sliding cavity is opened at the top end of the bottom plate, a clamping mechanism is arranged in the cavity, and the number of the clamping mechanisms is two. A pressing mechanism is arranged between the two clamping mechanisms. A side plate is vertically and fixedly installed on one side of the bottom plate. A lead screw mechanism is vertically opened on the side plate, and the number of the lead screw mechanisms is two. One side of the top plate is slidably installed on the lead screw mechanism. A lead screw mechanism is arranged at the middle of the side plate. A pulling plate is fixedly installed on one side of the top plate. By providing the clamping mechanism and the pressing mechanism, the plastic part is clamped and positioned by the two clamping mechanisms, and then the lead screw mechanism is started through the control panel, and the top plate descends to cut the edge of the plastic part, without the need for staff to assist in adjusting the position of the workpiece, and inexperienced staff can also operate skillfully.

Description

Technical Field

[0001] The present invention relates to the technical field of foaming molding processing, and specifically relates to a high-precision processing device for the surface of a foaming mold. Background Art

[0002] The foaming resin is directly filled into the mold, heated and melted to form a gas-liquid saturated solution. Through nucleation, a large number of tiny nuclei are formed, and the nuclei grow to form foam plastic parts. The mold among them is the foaming mold. This manufacturing process can produce plastic parts in batches according to the shape of the mold, but the produced plastic parts often have burrs, and there are often burrs that need to be cut twice at the gaps where the molds are butted. For example, an injection part trimming device disclosed in Chinese Patent No. CN202120716978.3 includes a machine body, which respectively includes a lower working part and an upper working part; a working groove is provided on the upper surface of the lower working part; a trimming mechanism extending vertically downward is provided at a position directly opposite the working groove at the upper end of the upper working part; the trimming mechanism includes a supporting part, a lifting part, a rotating part, a connecting part, a pressing plate and a trimming knife; the upper end surface of the supporting part is fixed to the upper end of the upper working part; the upper end surface of the lifting part is arranged at the lower end of the supporting part; the upper end surface of the rotating part is arranged at the lower end of the lifting part; the lower end surface of the rotating part is detachably connected with a pressing plate through the connecting part; the trimming knife is sleeved on the lower end of the rotating part. The wheel decorative cover is placed in the working groove, the lifting part is started to drive the pressing plate to press down and fix the wheel decorative cover. When pressed to the required position, the trimming knife is located at the trimming part. At this time, the rotating part is started to drive the trimming knife to rotate, and the flash and burrs on the wheel decorative cover can be trimmed. Although it can play a role in trimming, the operation accuracy is poor, and the staff needs to place the workpiece at the positioning position and watch the whole process. Therefore, a high-precision processing device for the surface of a foaming mold needs to be designed to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a high-precision processing device for the surface of a foaming mold, so as to solve the problems put forward in the above background art that plastic parts can be produced in batches according to the shape of the mold, but the produced plastic parts often have burrs, and there are often burrs that need to be cut twice at the gaps where the molds are butted. Although the existing technology can play a role in trimming, the operation accuracy is poor, and the staff needs to place the workpiece at the positioning position and watch the whole process for auxiliary positioning.

[0004] To achieve the above object, the present invention provides the following technical solution: a high-precision surface treatment device for a foaming mold, including a bottom plate, side plates and a top plate. A sliding cavity is opened at the top end of the bottom plate. A clamping mechanism is arranged in the cavity, and the number of clamping mechanisms is two. A pressing mechanism is arranged between the two clamping mechanisms. A side plate is vertically and fixedly installed on one side of the bottom plate. A lead screw mechanism is vertically opened on the side plate, and the number of lead screw mechanisms is two. One side of the top plate is slidably installed on the lead screw mechanism. A lead screw mechanism is arranged in the middle of the side plate. A pulling plate is fixedly installed on one side of the top plate. An outer frame body is fixedly installed on one side of the side plate at the top end of the top plate, and the outer frame body is annular and located outside the top plate. An installation cavity is opened at the bottom end of the top plate. A cutting blade is placed in the installation cavity. The cutting blade is provided with a cutting blade consistent with the foaming mold model. A rotating rod is installed on one side of the top end of the bottom plate, and a connecting plate is installed at the top end of the rotating rod. An "L"-shaped frame is fixedly installed at the top end of the connecting plate, and a screw rod is installed on the "L"-shaped frame. The bottom end of the screw rod is connected to a fixing mechanism through a bearing. The bottom end of the fixing mechanism passes through the connecting plate and extends to the bottom end of the connecting plate and is fixedly connected to a pressing head. A tooth groove is arranged at the bottom end of the connecting plate outside the pressing head, and the tooth groove is consistent with the shape of the foaming mold model on the cutting blade. A grinding mechanism is slidably connected on the slide rail.

[0005] Preferably, sliding grooves are opened on the top plate on both sides of the installation cavity, and the number of sliding grooves is two groups. A fixing plate is slidably installed on each group of sliding grooves, and the fixing plate supports the cutting blade.

[0006] Preferably, the pressing mechanism includes a receiving plate, an airbag and a docking block. An airbag is placed at the bottom end of the receiving plate. Docking blocks are fixedly installed on both sides of the airbag.

[0007] Preferably, the clamping mechanism includes a clamping block, a slider, a return spring and a connecting rod. The shape of the clamping block is consistent with the arc at both ends of the foaming mold model. The bottom end of the clamping block is fixedly connected to a slider. One end of each slider is fixedly connected to a return spring, and the side of the return spring away from the slider is installed in the sliding cavity. The other end of the slider is fixedly connected to a connecting rod, and the other end of the connecting rod is fixedly connected to the docking block.

[0008] Preferably, a fault is arranged in the middle of the fixing mechanism, and multiple groups of springs are arranged in the fault.

[0009] Preferably, a pressing sponge is arranged on the inner side of the cutting blade on the cutting blade, and the thickness of the pressing sponge is more than twice the thickness of the cutting blade.

[0010] Preferably, the grinding mechanism includes a storage battery, a dual-head motor, a sliding mechanism, a rotating rod, and a grinding head. One side of the dual-head motor is fixedly connected to the storage battery, and the other side of the side plate is fixedly connected to the sliding mechanism. The top end of the sliding mechanism is slidably mounted on the slide rail. Gears are installed on the output shafts of the dual-head motor, and one of the gears meshes with the tooth groove. The bottom end of the sliding mechanism is rotatably installed with a rotating rod. A tooth groove that meshes with the other gear of the dual-head motor is provided on the surface of the rotating rod. The bottom end of the rotating rod is fixedly connected to the grinding head.

[0011] Preferably, a control panel is fixedly installed at the top end of the outer frame body, and the output ends of the control panel are electrically connected to the input ends of the lead screw mechanism and the fan respectively.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. By providing a clamping mechanism and a pressing mechanism, the plastic part is clamped and positioned by two clamping mechanisms. Then, the lead screw mechanism is started through the control panel, and the top plate descends to cut the edge of the plastic part. Since the shape of the tool on the cutting blade is exactly the same as that of the plastic part, and the plastic part is positioned by the clamping mechanism at the position corresponding to the tooth groove, and after the sponge inside the tooth groove is squeezed against the pressing mechanism, the receiving plate is squeezed to squeeze the airbag, thereby pushing the connecting rod backward, driving the clamping block away from the plastic part. At this time, the plastic part is being squeezed and positioned by the sponge, so the position of the plastic part will not shift, and it can be cut by the cutting blade being pressed down from the top. After the cutting is completed, when the top plate is lifted, the airbag loses pressure, the airbag rebounds, and the elastic potential energy generated after the return spring is squeezed drives the connecting rod to rebound, driving the clamping block to clamp the plastic part again. There is no need for staff to assist in adjusting the position of the workpiece, and inexperienced staff can also operate proficiently.

[0014] 2. By providing a grinding mechanism, by starting the dual-head motor, one output end of the dual-head motor meshes with the tooth groove, and after rotation, it drives the sliding mechanism to move along the slide rail. During the movement, the other output end of the dual-head motor drives the rotating rod to rotate, thereby driving the grinding head to perform grinding and finishing on the edge of the plastic part. Among them, the gear ratio between the output end of the dual-head motor and the gear on the rotating rod can be adjusted according to the required grinding speed. The faster the speed is required, the larger the gear at the bottom end of the dual-head motor is, and the shorter the diameter of the tooth groove on the rotating rod is. After the grinding and finishing work is completed, the staff can unscrew the screw to release the positioning of the plastic part, and then unscrew the rotating rod to obtain the plastic part that has been trimmed and ground, with high-precision processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view schematic diagram of the structure of the present invention;

[0016] Figure 2It is a schematic bottom view of the installation state structure of the top plate and the cutting blade of the present invention;

[0017] Figure 3 It is a schematic bottom view of the top plate structure of the present invention;

[0018] Figure 4 It is a schematic side view of the structure of the present invention;

[0019] Figure 5 For the present invention Figure 1 The enlarged schematic view of the partial structure at A;

[0020] Figure 6 It is a schematic front view of the grinding mechanism structure of the present invention;

[0021] Figure 7 It is a schematic side sectional view of the bottom plate structure of the present invention.

[0022] In the figure: 1. Bottom plate; 2. Side plate; 3. Pressing mechanism; 31. Bearing plate; 32. Airbag; 33. Docking block; 4. Clamping mechanism; 41. Clamping block; 42. Slide block; 43. Return spring; 44. Connecting rod; 5. Top plate; 6. Pulling plate platform; 7. Outer frame body; 8. Grinding mechanism; 81. Battery; 82. Double-headed motor; 83. Sliding mechanism; 84. Rotating rod; 85. Grinding head; 9. Screw mechanism; 10. Fan; 11. Cutting blade; 12. Installation cavity; 13. Fixed plate; 14. Chute; 15. Connecting plate; 16. "L"-shaped frame; 17. Fixing mechanism; 18. Screw; 19. Slide rail; 20. Tooth groove; 21. Extrusion head; 22. Rotating rod. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figure 1-7 , an embodiment provided by the present invention:

[0025] A high-precision surface treatment device for a foaming mold, comprising a bottom plate 1, side plates 2 and a top plate 5. A sliding cavity is formed at the top end of the bottom plate 1. A clamping mechanism 4 is arranged in the cavity, and the number of the clamping mechanisms 4 is two. A pressing mechanism 3 is arranged between the two clamping mechanisms 4. The pressing mechanism 3 includes a receiving plate 31, an airbag 32 and a docking block 33. The airbag 32 is placed at the bottom end of the receiving plate 31. Docking blocks 33 are fixedly installed on both sides of the airbag 32. The clamping mechanism 4 includes a clamping block 41, a slider 42, a return spring 43 and a connecting rod 44. The shape of the clamping block 41 is consistent with the arc at both ends of the foaming mold model. The bottom end of the clamping block 41 is fixedly connected to the slider 42. One end of each slider 42 is fixedly connected to a return spring 43, and the side of the return spring 43 away from the slider 42 is installed in the sliding cavity. The other end of the slider 42 is fixedly connected to a connecting rod 44, and the other end of the connecting rod 44 is fixedly connected to the docking block 33. By placing the plastic part that needs high-precision treatment in the two clamping mechanisms 4 and clamping and positioning the plastic part through the two clamping mechanisms 4, then starting the lead screw mechanism 9 through the control panel, the top plate 5 descends to cut the edge of the plastic part. Since the shape of the tool on the cutting blade 11 is exactly the same as that of the plastic part, and the plastic part is positioned by the clamping mechanism 4 at a position corresponding to the tooth groove 20, and after the sponge inside the tooth groove 20 is squeezed against the pressing mechanism 3, the receiving plate 31 is squeezed to squeeze the airbag 32, thereby pushing the connecting rod 44 backward, driving the clamping block 41 away from the plastic part. At this time, the plastic part is being squeezed and positioned by the sponge, so the position of the plastic part will not shift, and it can be pressed down by the cutting tool from the top for cutting. After the cutting is completed, when the top plate 5 is lifted, the airbag 32 loses pressure, the airbag 32 rebounds, and the elastic potential energy generated after the return spring 43 is squeezed drives the connecting rod 44 to rebound, driving the clamping block 41 to clamp the plastic part again. There is no need for staff to assist in adjusting the position of the workpiece, and inexperienced staff can also operate it skillfully.

[0026] On one side of the bottom plate 1, a side plate 2 is vertically and fixedly installed. A screw rod mechanism 9 is vertically provided on the side plate 2, and the number of the screw rod mechanisms 9 is two. One side of the top plate 5 is slidably installed on the screw rod mechanism 9. A screw rod mechanism 9 is arranged at the middle of the side plate 2. A pulling plate 6 is fixedly installed on one side of the top plate 5. On one side of the side plate 2 at the top end of the top plate 5, an outer frame body 7 is fixedly installed, and the outer frame body 7 is annular and located outside the top plate 5. An installation cavity 12 is opened at the bottom end of the top plate 5. A cutting blade 11 is placed in the installation cavity 12. The cutting blade 11 is provided with a cutting blade consistent with the foaming mold model. On one side of the top end of the bottom plate 1, a rotating rod 22 is installed, and a connecting plate 15 is installed at the top end of the rotating rod 22. An "L"-shaped frame 16 is fixedly installed at the top end of the connecting plate 15. A screw rod 18 is installed on the "L"-shaped frame 16. The bottom end of the screw rod 18 is connected to a fixing mechanism 17 through a bearing. The bottom end of the fixing mechanism 17 passes through the connecting plate 15 and extends to the bottom end of the connecting plate 15 and is fixedly connected to an extrusion head 21. A tooth groove 20 is arranged at the bottom end of the connecting plate 15 on the outer side of the extrusion head 21, and the tooth groove 20 is consistent with the shape of the foaming mold model on the cutting blade 11. A grinding mechanism 8 is slidably connected to the slide rail 19.

[0027] Preferably, sliding grooves 14 are opened on the top plate 5 on both sides of the installation cavity 12, and two groups of sliding grooves 14 are provided. On each group of sliding grooves 14, a fixing plate 13 is slidably installed, and the fixing plate 13 supports the cutting blade 11. This structure can replace the cutting blade 11.

[0028] Further, a fault is provided in the middle of the fixing mechanism 17, and multiple groups of springs are arranged in the fault. The grinding mechanism 8 includes a storage battery 81, a double-headed motor 82, a sliding mechanism 83, a rotating rod 84, and a grinding head 85. One side of the double-headed motor 82 is fixedly connected to the storage battery 81, and the other side of the side plate 2 is fixedly connected to the sliding mechanism 83. The top end of the sliding mechanism 83 is slidably installed on the slide rail 19. Gears are installed on the output shafts of the double-headed motor 82. One of the gears meshes with the tooth groove 20. The bottom end of the sliding mechanism 83 is rotatably installed with a rotating rod 84. A tooth groove that meshes with the other gear of the double-headed motor 82 is provided on the surface of the rotating rod 84. The bottom end of the rotating rod 84 is fixedly connected to the grinding head 85. By starting the double-headed motor 82, one output end of the double-headed motor 82 meshes with the tooth groove 20 and drives the sliding mechanism 83 to move along the slide rail 19 after rotation. During the movement, the other output end of the double-headed motor 82 drives the rotating rod 84 to rotate, thereby driving the grinding head 85 to finely grind the edge of the plastic part. Among them, the gear ratio of the output end of the double-headed motor 82 and the gear on the rotating rod 84 can be adjusted according to the required grinding speed. The faster the speed is required, the larger the gear at the bottom end of the double-headed motor 82 is, and the shorter the diameter of the tooth groove on the rotating rod 84 is. After the fine grinding work is completed, the staff can unscrew the screw 18 to release the positioning of the plastic part and then unscrew the rotating rod 22 to obtain the plastic part that has been trimmed and ground, with high-precision processing.

[0029] Further, a pressing sponge is provided inside the cutting blade on the cutting blade 11. The thickness of the pressing sponge is more than twice the thickness of the cutting blade. A control panel is fixedly installed at the top end of the outer frame 7, and the output end of the control panel is electrically connected to the input ends of the lead screw mechanism 9 and the fan 10 respectively.

[0030] Working principle: When in use, the staff first connect the device to an external power supply to enable the device to work properly. Then, place the plastic parts that need to be processed with high precision in the two clamping mechanisms 4, and clamp and position the plastic parts through the two clamping mechanisms 4. Then, start the screw mechanism 9 through the control panel, and the top plate 5 descends to cut the edge of the plastic part. Since the shape of the tool on the cutting blade 11 is exactly the same as that of the plastic part, and the plastic part is positioned by the clamping mechanism 4 at the position corresponding to the tooth groove 20, and after the sponge inside the tooth groove 20 is squeezed against the pressing mechanism 3, the receiving plate 31 is squeezed to squeeze the air bag 32, thereby pushing the connecting rod 44 backward, driving the clamping block 41 away from the plastic part. At this time, the plastic part is squeezed and positioned by the sponge, so the position of the plastic part will not shift, and it can be cut by the cutting blade 11 being pressed down from the top. After the cutting is completed, when the top plate 5 is lifted, the air bag 32 loses pressure, the air bag 32 rebounds, and the elastic potential energy generated after the return spring 43 is squeezed drives the connecting rod 44 to rebound, driving the clamping block 41 to clamp the plastic part again. After the top plate 5 returns to the top, the staff can start the fan 10 through the control panel to blow off the burrs that may adhere to the top plate 5 after cutting, avoiding affecting the next cutting work;

[0031] Then, the staff drives the connecting plate 15 to rotate by rotating the rotating rod 22, rotates the connecting plate 15 to the top of the clamping mechanism 4, and makes one side of the grinding head 85 closely fit the edge of the plastic part. Then, the staff rotates the screw 18 to screw the screw 18 into the "L"-shaped frame 16, driving the position of the fixing mechanism 17 to move downward, so that the pressing head 21 positions the plastic part. The principle here refers to the above text. Then, by starting the double-headed motor 82, one output end of the double-headed motor 82 meshes with the tooth groove 20 and drives the sliding mechanism 83 to move along the slide rail 19 after rotation. During the movement, the other output end of the double-headed motor 82 drives the rotating rod 84 to rotate, thereby driving the grinding head 85 to polish and refine the edge of the plastic part. Among them, the gear ratio of the output end of the double-headed motor 82 and the rotating rod 84 can be adjusted according to the required grinding speed. The faster the speed is required, the larger the gear at the bottom of the double-headed motor 82 is, and the shorter the diameter of the tooth groove on the rotating rod 84 is. After the polishing and refining work is completed, the staff unscrew the screw 18 to release the positioning of the plastic part and then can unscrew the rotating rod 22 to obtain the plastic part that has completed edge cutting and grinding, with high-precision processing. At the same time, there is no need for the staff to assist in adjusting the position of the workpiece, and inexperienced staff can also operate proficiently.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in all respects, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A high-precision surface treatment device for a foaming mold, comprising a bottom plate (1), side plates (2) and a top plate (5). A sliding cavity is formed at the top end of the bottom plate (1). A clamping mechanism (4) is arranged in the sliding cavity, and the number of the clamping mechanisms (4) is two. A pressing mechanism (3) is arranged between the two clamping mechanisms (4). One side of the bottom plate (1) is vertically and fixedly installed with a side plate (2), and it is characterized in that: A screw rod mechanism (9) is vertically arranged on the side plate (2), and the number of the screw rod mechanisms (9) is two. One side of the top plate (5) is slidably mounted on the screw rod mechanism (9). A screw rod mechanism (9) is arranged at the middle of the side plate (2). A pull plate (6) is fixedly mounted on one side of the top plate (5). An outer frame body (7) is fixedly mounted on one side of the side plate (2) at the top end of the top plate (5), and the outer frame body (7) is annular and located outside the top plate (5). An installation cavity (12) is formed at the bottom end of the top plate (5). A cutting blade (11) is placed in the installation cavity (12). The cutting blade (11) is provided with a cutting blade consistent with the foaming mold model. A rotating rod (22) is mounted on one side of the top end of the bottom plate (1), and a connecting plate (15) is mounted at the top end of the rotating rod (22). An "L"-shaped frame (16) is fixedly mounted on the top end of the connecting plate (15), and a screw rod (18) is mounted on the "L"-shaped frame (16). The bottom end of the screw rod (18) is connected with a fixing mechanism (17) through a bearing. The bottom end of the fixing mechanism (17) passes through the connecting plate (15) and extends to the bottom end of the connecting plate (15) and is fixedly connected with an extrusion head (21). A tooth groove (20) is arranged at the bottom end of the connecting plate (15) outside the extrusion head (21), and the tooth groove (20) is consistent with the shape of the foaming mold model on the cutting blade (11). A grinding mechanism (8) is slidably connected on a slide rail (19); The pressing mechanism (3) includes a bearing plate (31), an air bag (32) and a docking block (33). The air bag (32) is placed at the bottom end of the bearing plate (31). Docking blocks (33) are fixedly mounted on both sides of the air bag (32). The clamping mechanism (4) includes a clamping block (41), a slider (42), a return spring (43) and a connecting rod (44). The shape of the clamping block (41) is consistent with the radian at both ends of the foaming mold model. The bottom end of the clamping block (41) is fixedly connected with the slider (42). One ends of the sliders (42) are fixedly connected with the return springs (43), and the return springs (43) are mounted in a sliding cavity on the side away from the sliders (42). The other ends of the sliders (42) are fixedly connected with the connecting rods (44), and the other ends of the connecting rods (44) are fixedly connected with the docking blocks (33).

2. The high-precision surface treatment device for a foaming mold according to claim 1, wherein: Chute grooves (14) are formed in the top plate (5) on both sides of the installation cavity (12), and there are two groups of the chute grooves (14). Fixed plates (13) are slidably mounted on each group of the chute grooves (14), and the fixed plates (13) support the cutting blade (11).

3. The high-precision surface treatment device for a foaming mold according to claim 1, wherein: A fault is arranged at the middle of the fixing mechanism (17), and multiple groups of springs are arranged in the fault.

4. The high-precision surface treatment device for a foaming mold according to claim 1, wherein: A pressing sponge is arranged on the inner side of the cutting blade on the cutting blade (11), and the thickness of the pressing sponge is more than twice the thickness of the cutting blade.

5. A high-precision surface treatment device for a foaming mold according to claim 1, characterized in that: The grinding mechanism (8) includes a storage battery (81), a double-headed motor (82), a sliding mechanism (83), a rotating rod (84) and a grinding head (85). One side of the double-headed motor (82) is fixedly connected to the storage battery (81). The other side of the side plate (2) is fixedly connected to the sliding mechanism (83), and the top end of the sliding mechanism (83) is slidably mounted on the slide rail (19). Gears are installed on the output shafts of the double-headed motor (82), and one of the gears meshes with the tooth groove (20). The bottom end of the sliding mechanism (83) is rotatably installed with a rotating rod (84). Tooth grooves that mesh with the other gear of the double-headed motor (82) are provided on the surface of the rotating rod (84). The bottom end of the rotating rod (84) is fixedly connected to the grinding head (85).

6. The high-precision surface treatment device for a foaming mold according to claim 1, wherein: A control panel is fixedly installed at the top end of the outer frame body (7), and the output end of the control panel is electrically connected to the input ends of the lead screw mechanism (9) and the fan (10) respectively.

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