Surface polishing device for precise plastic mold production

Abstract

The invention provides a surface polishing device for precise plastic mold production, and relates to the technical field of mold polishing equipment.The polishing device comprises a polishing table frame, a lifting support structure, two clamping table assemblies and a polishing main body part; the polishing body component comprises a polishing head, a polishing driving part and an outer cover frame, a lower connecting disc is arranged at the bottom end of the polishing driving part, an adjusting ring rotationally matched with the lower connecting disc is arranged outside the lower connecting disc, a gear ring part and a plurality of outer supports are arranged on the adjusting ring, and an air pipe unit is arranged on each outer support. And the lower ends of the air pipe units extend to the side portion of the polishing head, an air pump part and a plurality of dust suction machines are distributed on the outer wall of the polishing driving part in the circumferential direction, and the multiple air pipe units are connected with the air pump part and the multiple dust suction machines correspondingly. The plastic mold polishing device is simple in structure, a plastic mold is convenient to clamp and suitable for plastic molds of different sizes, impurities and chippings are blown away and sucked away through airflow, the polishing effect is improved, and use is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of mold polishing equipment, in particular to a surface polishing device for producing precision plastic molds. Background Art

[0002] Injection molds are various molds and tools used in industrial production to produce the desired product through methods such as injection molding, blow molding, extrusion, die-casting, forging, smelting, and stamping. They primarily achieve the desired shape by changing the physical state of the molded material. Mold polishing generally involves polishing the mold cavity surface using oilstone, sandpaper, polishing paste, wool wheels, etc. to achieve a mirror-like finish. Mold polishing not only increases the mold's finish, resulting in a smooth and beautiful surface for the finished product, but also facilitates mold release, preventing the plastic from sticking to the mold and becoming stuck.

[0003] When polishing the cavity surface of an injection mold, the debris and impurities generated by the polishing will be retained in the cavity, which can easily affect the subsequent polishing effect of the cavity. To solve this problem, the conventional method is to install a vacuum head on the side of the polishing head and use a vacuum cleaner to absorb the impurities and debris. However, some impurities and debris may have a strong adhesion to the cavity surface, and simply using airflow suction cannot completely clean them, resulting in poor polishing effect on the cavity surface. Summary of the Invention

[0004] The purpose of the present invention is to provide a surface polishing device for precision plastic mold production to solve the technical problems existing in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A surface polishing device for the production of precision plastic molds, comprising a polishing table frame, a lifting support structure, two clamping table assemblies and a polishing main body component for polishing the surface of the plastic mold main body, wherein the polishing table frame is arranged on the lifting support structure and the two clamping table assemblies are correspondingly arranged on the inner side of the polishing table frame; the two clamping table assemblies are used to support and clamp the two ends of the plastic mold main body from both sides, the top of the lifting support structure has an adjusting frame structure and the polishing main body component is arranged on the adjusting frame structure; the polishing main body component comprises a polishing head, a polishing drive unit and an outer cover frame, the outer cover frame is installed on the adjusting frame structure and the polishing drive unit is installed inside the outer cover frame, the upper end of the polishing head extends to the polishing The driving part is inside and connected to it, and a lower connecting plate is provided at the bottom end of the polishing driving part, and an adjusting ring that rotates with the lower connecting plate is provided on the outside of the lower connecting plate, and the adjusting ring has a gear ring part and multiple external supports, and each external support is provided with an air pipe unit, and the lower end of the air pipe unit extends to the side of the polishing head. An air pump part and multiple vacuum cleaners are distributed circumferentially on the outer wall of the polishing driving part, and multiple air pipe units are respectively connected to the air pump part and the multiple vacuum cleaners; a rotating motor is provided on the outer wall of the polishing driving part near the bottom, and an adjusting gear meshing with the gear ring part is provided at the output end of the rotating motor; a steering sensor is provided on the outer wall of the outer cover frame, and the steering sensor is used to sense the moving direction of the polishing main body.

[0006] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions: In an optional solution: the air pipe unit includes an upper telescopic air pipe, a fixed sleeve and a lower fixed air pipe, the fixed sleeve is installed on the outer support, the upper telescopic air pipe is a flexible pipe and one end of the upper telescopic air pipe is connected to the fixed sleeve, the other end of the upper telescopic air pipe is connected to the air pump part or the vacuum cleaner, one end of the lower fixed air pipe is connected to the fixed sleeve and the other end of the lower fixed air pipe extends to the side of the polishing head.

[0007] In an optional solution: the ends of the two clamping table assemblies are slidably connected to the inner wall of the polishing table frame, and a position adjustment unit is provided at the bottom of the polishing table frame. The position adjustment unit includes an adjusting rod shaft and an adjusting motor. The adjusting rod shaft is rotatably provided at the bottom of the polishing table frame and one end of the adjusting rod shaft is connected to the output end of the adjusting motor. The adjusting rod shaft passes through the bottom of the two clamping table assemblies and has two spiral sections with opposite spirals on the adjusting rod shaft. The two spiral sections are respectively engaged with the bottom spirals of the two clamping table assemblies.

[0008] In an optional solution: the clamping table assembly includes a support part and an upper pressing unit, both ends of the support part have slides and the slides slide in cooperation with the slide rails provided on the inner wall of the polishing table frame, and the bottom of the support part has a spiral seat that cooperates with the shaft of the adjusting rod; one side of the support part has a side clamping guard plate and the upper pressing unit is provided on the side clamping guard plate, the top of the upper pressing unit extends to the upper side of the support part and cooperates with the support part to press the end of the plastic mold body, and at least one receiving hole is also provided on the support part, and a movable positioning part is provided inside the receiving hole and the movable positioning part can be inserted into the positioning hole at the end of the plastic mold body.

[0009] In an optional solution, the side of the polishing table frame has a loading port, and the inner bottom surface of the loading port is flush with the upper surface of the supporting platform.

[0010] In an optional solution: the movable positioning part includes a positioning column and a positioning plate, the positioning column is inserted into the storage hole and the lower end of the positioning column extends to the lower side of the support platform, the positioning plate is fixed to the lower end of the positioning column and the positioning plate and the bottom of the support platform are connected by a downward spring part; the end of the upper pressure unit extending to the upper side of the support platform has a magnetic sheet and the top of the positioning column has a magnetic block.

[0011] In an optional solution: the upper pressure unit includes an upper pressure plate and a cross bar, the cross bar is fixedly mounted on the outer side of the side pressure guard plate, the cross bar has a sleeve portion that rotates with the cross bar, and a spring bearing is provided between the sleeve portion and the cross bar; at least one upper support arm is provided on the upper pressure plate, one end of the upper support arm is connected to the sleeve portion, and the outer side of the side pressure guard plate is also provided with a pushing component for driving the sleeve portion to rotate.

[0012] In an optional scheme: a clamping drive part is also provided on the outer wall of the polishing table frame, and at least one lower extension column with one end facing downward is provided on the outer wall of the sleeve part, and the pushing component includes a movable pushing strip and an outer extension rod, and the movable pushing strip is slidably connected to the outer side of the side clamping guard plate, and the movable pushing strip is provided with a pushing inclined block corresponding to the lower extension column, and the outer extension rod is provided at one end of the movable pushing strip and extends to the outside of the polishing table frame, and the clamping drive part is connected to the end of the outer extension rod and the clamping drive part can act on the outer extension rod to make the movable pushing strip move on the outer side of the side clamping guard plate.

[0013] In an optional solution: the clamping drive part includes a connecting part and at least one clamping cylinder part, the clamping cylinder part is fixed on the outer wall of the polishing table frame, the clamping cylinder part is connected to the side of the connecting part and the connecting part is a strip frame, the outer extension rod extends away from the end of the movable pushing strip to the inner side of the connecting part and is provided with a roller part; the roller part is in rolling contact with the inner wall of the connecting part.

[0014] In an optional scheme: a material return pushing component is also provided on the side wall of the polishing table frame away from the loading port, and the material return pushing component includes a material return pushing plate and at least one material return pushing rod component, the material return pushing plate is located on the inner side of the polishing table frame and the material return pushing rod component slides through the side wall of the polishing table frame, one end of the material return pushing rod component is provided with a material return rack, and a lower rack is provided on the outer wall of the connecting part; a fixed seat is also fixed on the outer wall of the polishing table frame, and a material return rotating shaft portion is provided on the fixed seat to rotate with it, one end of the material return rotating shaft portion extends between the material return rack and the lower rack, and a material return gear is provided at the end of the material return rotating shaft portion, and the material return rack and the lower rack are both meshed with the material return gear.

[0015] By adopting the above technical solution, the present invention has the following beneficial effects: In the surface polishing device for precision plastic mold production provided by the present invention, multiple air pipe units are arranged around the polishing head, and air flow is blown into the area to be polished by the polishing head to blow away impurities and debris, thereby improving the polishing effect; at the same time, the area polished by the polishing head is sucked away by the vacuum cleaner and the air pipe unit to remove impurities and debris, thereby avoiding impurities and debris from accumulating in the recessed part of the plastic mold body, which can effectively improve the polishing effect of the polishing on the recessed part of the plastic mold and clean up impurities and debris in time. At the same time, multiple air pipe units can rotate around the center of the polishing head to ensure that the blown air flow always acts on the area to be polished by the polishing head, thereby avoiding poor absorption of debris and impurities and affecting the polishing effect; the present invention has a simple structure, is easy to clamp the plastic mold, and is adaptable to plastic molds of different sizes, utilizes air flow to blow away and absorb impurities and debris, thereby improving the polishing effect, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a structural schematic diagram of one viewing angle of the polishing device in one embodiment of the present invention.

[0018] Figure 2 This is a schematic structural diagram of the polishing device in another perspective in an embodiment of the present invention.

[0019] Figure 3 Schematic diagram of the polishing table frame structure in one embodiment of the present invention.

[0020] Figure 4 This is a schematic structural diagram of a polishing main body component in one embodiment of the present invention.

[0021] Figure 5 This is a schematic structural diagram of a clamping table assembly from one perspective in an embodiment of the present invention.

[0022] Figure 6 This is a schematic structural diagram of the clamping table assembly from another perspective in one embodiment of the present invention.

[0023] Figure 7 This is a schematic structural diagram of a material-removing pushing component in one embodiment of the present invention.

[0024] : Notes on reference numerals: polishing table frame 100, loading port 110, lifting bracket structure 200, plastic mold body 300, clamping table assembly 400, support table part 410, storage hole 411, spiral seat 420, side tight guard plate 430, upper pressing unit 440, upper pressing plate 441, cross bar 442, upper support arm 443, sleeve part 444, lower extension column 445, movable push-up strip 446, push-up inclined block 447, outer extension rod 448, roller part 449, movable positioning part 450, positioning column 451, downward spring part 452, positioning plate 453, adjustment frame structure 500, polishing main body part 600, polishing head 610, polishing drive part 620, lower Connecting disc 630, outer cover frame 640, steering sensor 641, air pipe unit 650, upper telescopic air pipe 651, fixing sleeve 652, lower fixed air pipe 653, air pump part 660, adjusting ring 670, gear ring part 671, outer support 672, rotating motor 680, vacuum cleaner 690, material return pushing component 700, material return push plate 710, material return push rod part 720, material return rack 730, material return rotating shaft part 740, material return gear 750, fixing seat 760, clamping drive part 800, connecting part 810, clamping cylinder part 820, lower rack 830, position adjustment unit 900, adjusting rod shaft part 910, spiral section 920, adjusting motor 930. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] The left, right, up, and down positions of the components shown in the accompanying drawings are merely one arrangement, and the specific positions are set according to specific needs.

[0027] In one embodiment, Figures 1-4As shown, a surface polishing device for the production of precision plastic molds includes a polishing table frame 100, a lifting support structure 200, two clamping table assemblies 400 and a polishing main body component 600 for polishing the surface of the plastic mold main body 300, the polishing table frame 100 is arranged on the lifting support structure 200 and the two clamping table assemblies 400 are correspondingly arranged on the inner side of the polishing table frame 100; the two clamping table assemblies 400 are used to support and clamp the two ends of the plastic mold main body 300 from both sides, the top of the lifting support structure 200 has an adjusting frame structure 500 and the polishing main body component 600 is arranged on the adjusting frame structure 500; the polishing main body component 600 includes a polishing head 610, a polishing drive unit 620 and an outer cover frame 640, the outer cover frame 640 is installed on the adjusting frame structure 500 and the polishing drive unit 620 is installed inside the outer cover frame 640, and the upper end of the polishing head 610 extends to the polishing drive unit 620 is inside and connected to it. The bottom end of the polishing drive unit 620 is provided with a lower connecting plate 630 and the outside of the lower connecting plate 630 is provided with an adjusting ring 670 that rotates with it. The adjusting ring 670 has a gear ring portion 671 and multiple outer supports 672, and each outer support 672 is provided with an air pipe unit 650. The lower end of the air pipe unit 650 extends to the side of the polishing head 610. The outer wall of the polishing drive unit 620 is circumferentially distributed with an air pump unit 660 and multiple dust collectors 690. The multiple air pipe units 650 are respectively connected to the air pump unit 660 and the multiple dust collectors 690; the outer wall of the polishing drive unit 620 is provided with a rotating motor 680 near the bottom, and the output end of the rotating motor 680 is provided with an adjusting gear 681 that meshes with the gear ring portion 671. The outer wall of the outer cover frame 640 is provided with a steering sensor 641, and the steering sensor 641 is used to sense the moving direction of the polishing main body component 600.

[0028] In the embodiment of the present invention, the adjustment frame structure 500 belongs to the prior art and is used to adjust the horizontal position and angle of the polishing main body component 600; wherein, the polishing drive unit 620 has a polishing motor for driving the polishing head 610 to rotate and a height adjustment cylinder for fine-tuning the height of the polishing head 610; the internal structure of the polishing drive unit 620 and the specific structure of the adjustment frame structure 500 are conventional settings of the prior art for those skilled in the art and can be omitted for brevity; when performing polishing, the plastic mold body 300 is placed inside the polishing table frame 100 and the two ends of the plastic mold body 300 are clamped by two clamping tables. The assembly 400 clamps and supports, and the position of the clamping table assembly 400 on the polishing table frame 100 is adjustable, which can achieve accurate positioning of the plastic mold body 300; the lifting device on the lifting support structure 200 drives the adjustment frame structure 500 and the polishing body component 600 to move and make the polishing body component 600 extend into the inner side of the plastic mold body 300; the adjustment frame structure 500 adjusts the position of the polishing body component 600 and the polishing motor and height adjustment cylinder in the polishing drive unit 620 work together, so that the polishing head 610 can polish along the inner surface of the plastic mold body 300; the polishing body component 600 is adjusted by the adjustment frame structure 500. During the polishing process of the component 600 on the surface of the plastic mold body 300, the air pump unit 660 and the multiple vacuum cleaners 690 work simultaneously. The air pipe unit 650 connected to the air pump unit 660 is located at the feeding end of the polishing head 610. The air pump unit 660 guides the external air flow into the air pipe unit 650, and the air flow blows toward the area to be polished by the polishing head 610 and blows away impurities or debris, thereby preventing the polishing head 610 from polishing due to impurities or debris in the polishing area affecting the polishing effect; the vacuum cleaner 690 works and absorbs impurities and debris around the polishing head 610 through the air pipe unit 650 connected thereto, thereby preventing impurities and debris from being constantly released. Finally, it will be retained inside the plastic mold body 300, affecting the subsequent polishing, and excessive impurities and debris will be splashed under the action of airflow; when the feeding direction of the polishing head 610 changes, the steering sensor 641 generates induction and controls the working state of the rotating motor 680. The rotating motor 680 rotates the adjusting ring 670 by meshing the adjusting gear 681 with the ring gear part 671, so that the multiple air pipe units 650 rotate around the center of the polishing head 610, so that the air pipe unit 650 connected to the air pump part 660 rotates to the feeding side of the polishing head 610, ensuring that the impurities and debris in the polishing area are cleaned before the polishing head 610 polishes.

[0029] In one embodiment, Figure 4As shown, the air pipe unit 650 includes an upper telescopic air pipe 651, a fixed sleeve 652 and a lower fixed air pipe 653. The fixed sleeve 652 is installed on the outer support 672. The upper telescopic air pipe 651 is a flexible pipe and one end of the upper telescopic air pipe 651 is connected to the fixed sleeve 652, and the other end of the upper telescopic air pipe 651 is connected to the air pump unit 660 or the vacuum cleaner 690. One end of the lower fixed air pipe 653 is connected to the fixed sleeve 652 and the other end of the lower fixed air pipe 653 extends to the side of the polishing head 610; in this embodiment of the present invention, the lower fixed air pipe 653 is a hard pipe and can always be at the side of the polishing head 610 to absorb impurities or guide the airflow to the area to be polished by the polishing head 610. The upper telescopic air pipe 651 is a hose made of flexible material that can bend and stretch so that the lower fixed air pipe 653 can be rotated to various positions outside the outer cover frame 640.

[0030] In one embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6 As shown, the ends of the two clamping table assemblies 400 are slidably connected to the inner wall of the polishing table frame 100, and a position adjustment unit 900 is provided at the bottom of the polishing table frame 100. The position adjustment unit 900 includes an adjustment rod shaft 910 and an adjustment motor 930. The adjustment rod shaft 910 is rotatably arranged at the bottom of the polishing table frame 100 and one end of the adjustment rod shaft 910 is connected to the output end of the adjustment motor 930. The adjustment rod shaft 910 passes through the bottom of the two clamping table assemblies 400 and has two screws on the adjustment rod shaft 910. The spiral sections 920 are rotated in opposite directions, and the two spiral sections 920 are respectively engaged with the bottom spirals of the two clamping table assemblies 400; in the embodiment of the present invention, before installing the plastic mold body 300, the adjustment motor 930 works and drives the adjustment rod shaft 910 to rotate, and the adjustment rod shaft 910 is engaged with the spiral at the bottom of the clamping table assembly 400 through the spiral section 920, so that the two clamping table assemblies 400 are closer to or farther away from the center of the polishing table frame 100, so that the positions of the two clamping table assemblies 400 can be adjusted according to the length of the plastic mold body 300.

[0031] In one embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6As shown, the clamping table assembly 400 includes a support portion 410 and an upper pressing unit 440. Both ends of the support portion 410 have slides and the slides slide in cooperation with the slide rails provided on the inner wall of the polishing table frame 100. The bottom of the support portion 410 has a spiral seat 420 that cooperates with the adjusting rod shaft 910; one side of the support portion 410 has a side abutting guard plate 430 and the upper pressing unit 440 is provided on the side abutting guard plate 430. The top of the upper pressing unit 440 extends to the upper side of the support portion 410 and cooperates with the support portion 410 to press the end of the plastic mold body 300. The support portion 410 is also provided with a screw seat 420 that cooperates with the adjusting rod shaft 910. There is at least one receiving hole 411, and a movable positioning member 450 is provided inside the receiving hole 411, and the movable positioning member 450 can be inserted into the positioning hole at the end of the plastic mold main body 300; in the embodiment of the present invention, the positions of the two clamping table assemblies 400 are adjusted by the position adjustment unit 900, the end of the plastic mold main body 300 is placed on the support portion 410 and the movable positioning member 450 is inserted into the positioning hole at the end of the plastic mold main body 300 to achieve the positioning of the plastic mold main body 300, and the upper pressing unit 440 presses on the end of the plastic mold main body 300 from the top to achieve clamping and fixation.

[0032] In one embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6As shown, the side of the polishing table frame 100 has a loading port 110 and the inner bottom surface of the loading port 110 is flush with the upper surface of the support portion 410, the movable positioning member 450 includes a positioning column 451 and a positioning plate 453, the positioning column 451 is inserted into the inside of the storage hole 411 and the lower end of the positioning column 451 extends to the lower side of the support portion 410, the positioning plate 453 is fixed to the lower end of the positioning column 451 and the positioning plate 453 is connected to the bottom of the support portion 410 by the downward spring portion 452; the upper pressing unit 440 extends to the end of the upper side of the support portion 410 and has a magnetic sheet and the top of the positioning column 451 has a magnetic block; in this embodiment of the present invention, since the inner bottom surface of the polishing table frame 100 is flush with the upper surface of the support portion 410, the plastic mold body 300 can be moved from the loading port 110 When the upper pressing unit 440 is on the upper side of the end of the plastic mold body 300 and presses the plastic mold body 300, the magnetic sheet at the end of the positioning column 451 and the magnetic block at the top of the positioning column 451 generate magnetic attraction, so the positioning column 451 moves upward and protrudes from the receiving hole 411, and the top of the positioning column 451 is inserted into the positioning hole at the end of the plastic mold body 300 to realize automatic positioning, thereby effectively preventing the plastic mold body 300 from vibrating during polishing.

[0033] In one embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6 As shown, the upper pressure unit 440 includes an upper pressure plate 441 and a cross bar 442, the cross bar 442 is fixedly mounted on the outer side of the side abutment guard plate 430, the cross bar 442 has a sleeve portion 444 that rotates with the cross bar 442, and a spring bearing is provided between the sleeve portion 444 and the cross bar 442; at least one upper support arm 443 is provided on the upper pressure plate 441, one end of the upper support arm 443 is connected to the sleeve portion 444, and the outer side of the side abutment guard plate 430 is also provided with a pushing component for driving the sleeve portion 444 to rotate; In the embodiment of the present invention, the upper pressure plate 441 is used to press on the upper side of the end of the plastic mold main body 300, and the pushing component can act on the sleeve portion 444 and make the sleeve portion 444 rotate around the cross bar 442. The sleeve portion 444 drives the upper pressure plate 441 to rotate through the upper support arm 443, so that when the upper pressure plate 441 rotates away from the support portion 410, the clamping of the plastic mold main body 300 is released; when the upper pressure plate 441 rotates close to the support portion 410, the upper pressure plate 441 presses the plastic mold main body 300 from the top to achieve locking of the plastic mold main body 300.

[0034] In one embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 7 As shown, a clamping drive portion 800 is further provided on the outer wall of the polishing table frame 100, and at least one lower extension column 445 with at least one end facing downward is provided on the outer wall of the sleeve portion 444, and the pushing component includes a movable pushing strip plate 446 and an outer extension rod 448, and the movable pushing strip plate 446 is slidably connected to the outer side of the side abutting guard plate 430, and a pushing inclined block 447 corresponding to the lower extension column 445 is provided on the movable pushing strip plate 446, and the outer extension rod 448 is provided at one end of the movable pushing strip plate 446 and extends to the outside of the polishing table frame 100, and the clamping drive portion 800 is connected to the end of the outer extension rod 448 and the clamping drive portion 800 can move the movable pushing strip plate 446 on the outer side of the side abutting guard plate 430 by acting on the outer extension rod 448; in this embodiment of the present invention, the clamping drive When the movable ejector plate 446 moves back, the ejector slant block 447 no longer acts on the lower extension column 445. Due to the action of the spring bearing between the sleeve portion 444 and the cross bar 442, the sleeve portion 444 rotates and the upper pressure plate 441 moves away from the support portion 410. The upper pressure plate 441 no longer presses the end of the plastic mold body 300, which facilitates the blanking of the plastic mold body 300.

[0035] In one embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 7As shown, the pressing drive part 800 includes a connecting part 810 and at least one pressing cylinder 820, the pressing cylinder 820 is fixed on the outer wall of the polishing table frame 100, the pressing cylinder 820 is connected to the side of the connecting part 810 and the connecting part 810 is a strip frame, the outer extension rod 448 extends away from the end of the movable top strip 446 to the inner side of the connecting part 810 and is provided with a roller part 449; the roller part 449 is in rolling contact with the inner wall of the connecting part 810; in the embodiment of the present invention, the pressing cylinder 820 is automatically pressed. The telescopic driving connection part 810 of the body moves away from or close to the polishing table frame 100, and the connection part 810 pushes and pulls the movable push strip 446 through the outer extension rod 448 and the roller part 449 to move the movable push strip 446, thereby utilizing the upper pressure plate 441 to clamp and release the end of the plastic mold body 300; since the outer extension rod 448 and the roller part 449 can move relative to the connection part 810, when adjusting the position of the clamping table assembly 400, the outer extension rod 448 and the roller part 449 will not interfere with the clamping driving part 800.

[0036] In one embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 7As shown, the side wall of the polishing frame 100 away from the loading port 110 is further provided with a material-removing pushing component 700, and the material-removing pushing component 700 includes a material-removing pushing plate 710 and at least one material-removing pushing rod 720. The material-removing pushing plate 710 is located on the inner side of the polishing frame 100 and the material-removing pushing rod 720 slides through the side wall of the polishing frame 100. One end of the material-removing pushing rod 720 is provided with a material-removing rack 730, and a lower rack 830 is provided on the outer wall of the connecting portion 810. The outer wall of the table frame 100 is also fixed with a fixing seat 760 and the fixing seat 760 is provided with a material stripping shaft portion 740 that rotates therewith. One end of the material stripping shaft portion 740 extends between the material stripping rack 730 and the lower rack 830 and the end of the material stripping shaft portion 740 is provided with a material stripping gear 750. The material stripping rack 730 and the lower rack 830 are both meshed with the material stripping gear 750. In the embodiment of the present invention, when the connecting portion 810 is acted upon by the pressing cylinder 820 and is moved close to the polishing table frame 100, When the upper pressing plate 441 is used to clamp the end of the plastic mold body 300, the lower rack 830 moves with the connecting portion 810, and the lower rack 830 drives the material stripping push rod 720 to move toward the side away from the polishing table frame 100 through the material stripping gear 750 and the material stripping rack 730, so that the material stripping push plate 710 is away from the plastic mold body 300. The plastic mold body 300; when the connecting portion 810 moves toward the side away from the polishing table frame 100, the upper pressure plate 441 releases the plastic mold body 300, and the lower rack 830 engages with the material stripping gear 750 and utilizes the engagement of the material stripping gear 750 with the material stripping rack 730 to make the material stripping push rod 720 move toward the polishing table frame 100, so that the material stripping push plate 710 moves with the material stripping push rod 720 and pushes the plastic mold body 300 out of the loading port 110, so as to facilitate automatic unloading.

[0037] The above embodiment provides a surface polishing device for the production of precision plastic molds, wherein during polishing, the plastic mold body 300 is placed inside the polishing table frame 100 and the two ends of the plastic mold body 300 are clamped and supported by two clamping table assemblies 400, and the position of the clamping table assembly 400 on the polishing table frame 100 is adjustable, so that the plastic mold body 300 can be accurately positioned; the lifting device on the lifting support structure 200 drives the adjustment frame structure 500 and the polishing body component 600 to move and The polishing main body component 600 extends into the inner side of the plastic mold main body 300; the adjusting frame structure 500 adjusts the position of the polishing main body component 600 and the polishing motor and the height adjustment cylinder in the polishing drive unit 620 work together to enable the polishing head 610 to polish along the inner surface of the plastic mold main body 300; during the polishing process of the polishing main body component 600 on the surface of the plastic mold main body 300, the air pump unit 660 and the multiple vacuum cleaners 690 work simultaneously, and the air pipe unit 650 connected to the air pump unit 660 is at At the feed end of the polishing head 610, the air pump unit 660 guides the external air flow into the air pipe unit 650, and the air flow blows toward the area to be polished by the polishing head 610 and blows away impurities or debris; thereby preventing the polishing head 610 from being affected by impurities or debris in the polishing area during polishing; the vacuum cleaner 690 works and absorbs impurities and debris around the polishing head 610 through the air pipe unit 650 connected thereto, thereby preventing impurities and debris from being always retained inside the plastic mold body 300, affecting subsequent polishing, and preventing excessive impurities and debris It will splash under the action of airflow; when the feeding direction of the polishing head 610 changes, the steering sensor 641 generates induction and controls the working state of the rotating motor 680. The rotating motor 680 rotates the adjusting ring 670 by adjusting the engagement of the gear 681 with the gear ring part 671, so that the multiple air pipe units 650 rotate around the center of the polishing head 610, so that the air pipe unit 650 connected to the air pump part 660 rotates to the feeding side of the polishing head 610, ensuring that the polishing head 610 cleans impurities and debris in the polishing area before polishing.

[0038] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A surface polishing device for producing precision plastic molds, comprising a polishing table frame (100), a lifting support structure (200), two clamping table assemblies (400) and a polishing main body component (600) for polishing the surface of a plastic mold main body (300), wherein the polishing table frame (100) is arranged on the lifting support structure (200) and the two clamping table assemblies (400) are correspondingly arranged on the inner side of the polishing table frame (100); the two clamping table assemblies (400) are used to support and clamp the two ends of the plastic mold main body (300) from both sides, the top of the lifting support structure (200) has an adjusting frame structure (500) and the polishing main body component (600) is arranged on the adjusting frame structure (500), and is characterized in that The polishing main body component (600) comprises a polishing head (610), a polishing drive unit (620) and an outer cover frame (640); The outer cover frame (640) is mounted on the adjustment frame structure (500) and the polishing drive unit (620) is mounted inside the outer cover frame (640), and the upper end of the polishing head (610) extends into the interior of the polishing drive unit (620) and is connected thereto; The bottom end of the polishing drive unit (620) is provided with a lower connecting disk (630), and the outer portion of the lower connecting disk (630) is provided with an adjusting ring (670) that is rotatably engaged therewith. The adjusting ring (670) is provided with a gear ring portion (671) and a plurality of outer supports (672), and each outer support (672) is provided with an air pipe unit (650), and the lower end of the air pipe unit (650) extends to the side of the polishing head (610). An air pump unit (660) and a plurality of dust collectors (690) are circumferentially distributed on the outer wall of the polishing drive unit (620); The plurality of air pipe units (650) are respectively connected to the air pump unit (660) and the plurality of vacuum cleaners (690); A rotating motor (680) is provided on the outer wall of the polishing drive portion (620) near the bottom, and an adjusting gear (681) meshing with the gear ring portion (671) is provided at the output end of the rotating motor (680). A steering sensor (641) is provided on the outer wall of the outer cover frame (640), and the steering sensor (641) is used to sense the moving direction of the polishing main body component (600).

2. The surface polishing device for precision plastic mold production according to claim 1, characterized in that: The trachea unit (650) comprises an upper telescopic trachea (651), a fixed sleeve (652) and a lower fixed trachea (653); The fixed sleeve (652) is mounted on the outer support (672), the upper telescopic air pipe (651) is a flexible pipe and one end of the upper telescopic air pipe (651) is connected to the fixed sleeve (652), the other end of the upper telescopic air pipe (651) is connected to the air pump unit (660) or the vacuum cleaner (690), one end of the lower fixed air pipe (653) is connected to the fixed sleeve (652), and the other end of the lower fixed air pipe (653) extends to the side of the polishing head (610).

3. The surface polishing device for precision plastic mold production according to claim 1, characterized in that: The ends of the two clamping table assemblies (400) are both slidably connected to the inner wall of the polishing table frame (100), and a position adjustment unit (900) is provided at the bottom of the polishing table frame (100); The position adjustment unit (900) comprises an adjustment rod shaft (910) and an adjustment motor (930); The adjusting rod shaft (910) is rotatably arranged at the bottom of the polishing table frame (100) and one end of the adjusting rod shaft (910) is connected to the output end of the adjusting motor (930). The adjusting rod shaft (910) passes through the bottoms of the two clamping table assemblies (400) and has two spiral sections (920) with opposite spirals on the adjusting rod shaft (910). The two spiral sections (920) are respectively engaged with the bottom spirals of the two clamping table assemblies (400).

4. The surface polishing device for precision plastic mold production according to claim 3, characterized in that: The clamping table assembly (400) includes a support table portion (410) and an upper pressing unit (440), wherein both ends of the support table portion (410) have a slide seat, and the slide seat is slidably matched with a slide rail provided on the inner wall of the polishing table frame (100), and the bottom of the support table portion (410) has a spiral seat (420) matched with the adjusting rod shaft portion (910); The support platform (410) has a side abutting guard plate (430) on one side, and an upper pressing unit (440) is provided on the side abutting guard plate (430). The top of the upper pressing unit (440) extends to the upper side of the support platform (410) and cooperates with the support platform (410) to press the end of the plastic mold body (300). At least one receiving hole (411) is also provided on the support platform portion (410). A movable positioning member (450) is provided inside the receiving hole (411), and the movable positioning member (450) can be inserted into a positioning hole at the end of the plastic mold body (300).

5. The surface polishing device for precision plastic mold production according to claim 4, characterized in that: The side of the polishing table frame (100) is provided with a loading port (110), and the inner bottom surface of the loading port (110) is flush with the upper surface of the supporting platform (410).

6. The surface polishing device for precision plastic mold production according to claim 5, characterized in that: The movable positioning member (450) includes a positioning column (451) and a positioning plate (453); The positioning column (451) is inserted into the receiving hole (411) and the lower end of the positioning column (451) extends to the lower side of the support platform (410). The positioning plate (453) is fixed to the lower end of the positioning column (451) and the positioning plate (453) is connected to the bottom of the support platform (410) via the downward spring portion (452). The end portion of the upper pressing unit (440) extending to the upper side of the support platform portion (410) is provided with a magnetic sheet, and the top of the positioning column (451) is provided with a magnetic block.

7. The surface polishing device for precision plastic mold production according to claim 5, characterized in that: The upper pressing unit (440) comprises an upper pressing plate (441) and a cross bar (442); The crossbar (442) is fixedly mounted on the outer side of the side abutting guard plate (430), and the crossbar (442) has a sleeve portion (444) rotatably engaged therewith, and a spring bearing is provided between the sleeve portion (444) and the crossbar (442); At least one upper support arm (443) is provided on the upper pressure plate (441), one end of the upper support arm (443) is connected to the sleeve portion (444), and a pushing component for driving the sleeve portion (444) to rotate is also provided on the outer side of the side abutting guard plate (430).

8. The surface polishing device for precision plastic mold production according to claim 7, characterized in that: A pressing drive portion (800) is further provided on the outer wall of the polishing table frame (100), and at least one lower extension column (445) with an end facing downward is provided on the outer wall of the sleeve portion (444); The pushing component includes a movable pushing strip (446) and an outer extension rod (448); The movable push-up strip (446) is slidably connected to the outer side of the side abutting guard plate (430), and a push-up inclined block (447) corresponding to the lower extension column (445) is provided on the movable push-up strip (446). The outer extension rod (448) is provided at one end of the movable push-up strip (446) and extends to the outer side of the polishing table frame (100); The pressing drive unit (800) is connected to the end of the outer extension rod (448) and the pressing drive unit (800) can act on the outer extension rod (448) to move the movable push strip (446) on the outer side of the side abutment guard plate (430).

9. The surface polishing device for precision plastic mold production according to claim 8, characterized in that: The pressing drive unit (800) comprises a connecting portion (810) and at least one pressing cylinder component (820); The pressing cylinder (820) is fixed on the outer wall of the polishing table frame (100), the pressing cylinder (820) is connected to the side of the connecting portion (810), and the connecting portion (810) is a strip frame. The end of the outer extension rod (448) away from the movable push strip (446) extends to the inner side of the connecting portion (810) and is provided with a roller portion (449); The roller portion (449) is in rolling contact with the inner wall of the connecting portion (810).

10. The surface polishing device for precision plastic mold production according to claim 9, characterized in that: A material-returning pushing component (700) is further provided on a side wall of the polishing table frame (100) away from the loading port (110), and the material-returning pushing component (700) comprises a material-returning pushing plate (710) and at least one material-returning pushing rod (720); The material-removing push plate (710) is located inside the polishing table frame (100) and the material-removing push rod (720) slides through the side wall of the polishing table frame (100), one end of the material-removing push rod (720) is provided with a material-removing rack (730), and a lower rack (830) is provided on the outer wall of the connecting portion (810); A fixing seat (760) is fixed on the outer wall of the polishing table frame (100), and a material-removing rotating shaft portion (740) is provided on the fixing seat (760) and is rotatably matched with the fixing seat. One end of the material-removing rotating shaft portion (740) extends between the material-removing rack (730) and the lower rack (830), and a material-removing gear (750) is provided at the end of the material-removing rotating shaft portion (740). Both the material-removing rack (730) and the lower rack (830) are meshed with the material-removing gear (750).

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