Plastic mold processing grinder

Abstract

The application belongs to the technical field of plastic mold processing grinding machines, in particular to a plastic mold processing grinding machine, comprising a bottom plate; the top of the bottom plate is provided with a conveying table assembly for positioning the blank of the plastic mold; a multi-angle drill bit assembly for engraving the blank of the plastic mold is movably sleeved on the conveying table assembly; the conveying table assembly is used for positioning the blank of the plastic mold, and at the same time, the up-and-down displacement of the blank of the plastic mold during engraving is realized, so that the up-and-down displaced blank of the plastic mold is used in cooperation with the rotating or horizontally moving multi-angle drill bit assembly, the processing precision of the blank of the plastic mold is improved, the angle of the blank of the processed plastic mold is switched after the lifting action of the output end of a group of first electric push rods is used to make the conveying table assembly be inclined, which is convenient for technicians to accurately analyze the plastic mold and meet different requirements of mold processing.

Description

Technical Field

[0001] This invention belongs to the field of plastic mold processing grinding machine technology, and specifically relates to a plastic mold processing grinding machine. Background Technology

[0002] The core objective of the existing plastic mold blank, as part of the plastic mold processing, is to efficiently and accurately process a square or round plastic mold into the basic shape of the core parts of the mold (mold core / cavity, slider, etc.) by removing a large amount of excess material, thus preparing it for subsequent finishing processes (such as precision milling, EDM, and polishing). Blank processing is the stage with the largest amount of material removal and the most profound impact on subsequent processes in the entire mold manufacturing process.

[0003] A search revealed that Chinese Patent Publication No. CN221849593U, authorized on October 18, 2024, discloses a surface grinder for processing plastic parts. The grinder includes a base, an operating table fixed to the top of the base, a groove on the surface of the operating table, and a fixing mechanism mounted above the operating table. The fixing mechanism includes a support column fixed inside the base, a clamping block holding a plastic part body in the middle, and a grinding mechanism mounted on the upper end of the grinder base. This application provides a surface grinder for processing plastic parts. When the hydraulic cylinder is activated, the hinged rods at both ends are subjected to force and rotate around the support shaft, sliding in the groove of the operating table. The two hinged rods, under force, drive the connecting rod to slide within the support rod, simultaneously causing the clamping block to slide inward, thereby clamping and fixing the plastic part. This allows for rapid positioning of the plastic part, preventing movement or tilting during grinding, reducing defective plastic parts and material waste.

[0004] However, the equipment still has the following drawbacks: although it can rotate according to the mold to be processed and can achieve automated processing well, it cannot accurately displace the plastic mold blank and perform simultaneous processing on both sides and at multiple angles during the automated processing process, which cannot meet the current high requirements of molds. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a plastic mold processing grinding machine, including a base plate; a conveyor assembly for positioning the plastic mold blank is disposed on the top of the base plate, a multi-angle drill assembly for carving the plastic mold blank is movably sleeved on the conveyor assembly, and the multi-angle drill assembly moves horizontally or rotatably along the conveyor assembly, a first lateral support assembly is installed at one end of the conveyor assembly, and a second lateral support assembly is installed at the other end of the conveyor assembly, two sets of first electric push rods are fixedly connected to the top of the base plate, and the output ends of the two sets of first electric push rods are rotatably connected to bearings, and the top of each bearing is fixedly connected to a linkage arm, and the linkage arm is fixedly connected to the bottom end of the conveyor assembly, so that as the output ends of the first electric push rods move downward, the conveyor assembly is tilted to facilitate the technician's observation of the processing of the plastic mold.

[0006] Furthermore, the conveyor assembly includes a linkage plate; four sets of hinge seats are fixedly connected to the bottom end of the linkage plate, and a lower plate is rotatably connected between every two sets of hinge seats. A horizontal plate is fixedly connected to the top of the lower plate, and a positioning hole is provided on the lower plate. A horizontal positioning rod is movably fitted to the inner wall of the positioning hole. A first motor is also fixedly connected to both sides of the bottom end of the linkage plate. A linkage housing is fitted to both side walls of the linkage plate. A first lead screw is provided on the linkage housing. A second motor is driven to one end of the first lead screw. A lifting inner cavity is provided on the surface of the linkage plate, and a displacement plate is slidably fitted to the inner wall of the lifting inner cavity.

[0007] Furthermore, a second lead screw is threaded to both sides of the displacement plate. One end of the second lead screw is rotatably connected to one side of the inner wall of the lifting cavity, and the other end of the second lead screw is driven to the output end of the first motor. A positioning cavity is opened on the surface of the displacement plate. Positioning blocks are attached to both sides of the inner wall of the positioning cavity. The output end of a cylinder is driven to one side of each positioning block, and the side of the cylinder away from the output end is embedded in the displacement plate.

[0008] Furthermore, a first internal threaded hole is provided on one side wall of the linkage housing, and the first internal threaded hole is threadedly connected to a first lead screw. An adjustment groove is provided on the outer wall of the linkage housing away from the first internal threaded hole. A drive gear is rotatably connected to the inner wall of the adjustment groove. A third motor is also fixedly connected to the outer wall of the linkage housing, and the output end of the third motor is drivenly connected to the drive gear. A driven gear is also meshed on one side of the drive gear. Both sides of the driven gear are rotatably connected to drive brackets, and the end of the drive bracket away from the driven gear is fixedly connected to the outer wall of the linkage housing.

[0009] Furthermore, the multi-angle drill bit assembly includes a first positioning ring; a second positioning ring is horizontally arranged on one side of the first positioning ring, and protective rings are fixedly connected to the outer walls of both the second positioning ring and the first positioning ring, with a gap reserved between the first positioning ring and the second positioning ring.

[0010] Furthermore, an internal gear ring is fixedly connected to the inner wall of the protective ring, the internal gear ring meshes with the driven gear, and the driven gear is also slidably fitted at the gap between the first positioning ring and the second positioning ring. Four sets of limiting blocks are also fixedly connected between the first positioning ring and the second positioning ring.

[0011] Furthermore, an engraving drill bit is provided between every two sets of the limiting blocks. One end of the engraving drill bit is connected to the output end of a second electric push rod, and the side of the second electric push rod away from the output end is embedded in the outer wall of the protective ring. A reinforcing rod is also provided between the outer wall of the second electric push rod and the outer wall of the protective ring.

[0012] Furthermore, the first lateral support assembly includes a first side plate and a fourth motor; the first side plate is fixedly connected to one side of the linkage plate, the outer wall of the first side plate has two sets of hollow sliding cavities, the outer wall of the first side plate also has two sets of mounting holes, both sets of mounting holes are fitted onto the first lead screw, and the outer wall of the first side plate is also fixedly connected to the side wall of the second motor near the output end.

[0013] Furthermore, both sets of hollow sliding cavities are equipped with linkage cylinders on their inner walls. Guide grooves are provided on both side walls of the linkage cylinders, and the guide grooves are horizontally slidably connected to the inner walls of the hollow sliding cavities. The outer wall of the linkage cylinder is provided with a second internal threaded hole, and the second internal threaded hole is threadedly connected to the first lead screw. One end of the linkage cylinder is an open structure, and a fifth motor is fixedly connected to the center of the central axis of the inner wall of the linkage cylinder. The output end of the fifth motor is driven by an eccentric rod, and the other end of the eccentric rod is fixedly connected to an air pump. The output end of the fourth motor is driven by a third lead screw for driving the linkage cylinder to move horizontally.

[0014] Furthermore, the second lateral support assembly includes a second side plate; the second side plate is fixedly connected to the other side of the linkage plate, the outer wall of the second side plate has a storage channel, and two sets of feeding inclined plates are fixedly connected to one side of the outer wall of the second side plate. A vertical plate is fixedly connected between one side wall of the two sets of feeding inclined plates and the outer wall of the second side plate. The bottoms of the two sets of vertical plates and the two sets of feeding inclined plates are all set at the same level as the top surface of the linkage plate.

[0015] The beneficial effects of this invention are:

[0016] 1. The conveyor assembly not only positions the plastic mold blank but also allows for vertical displacement of the blank during the engraving process. This vertical displacement of the blank, combined with the rotating or horizontally moving multi-angle drill bit assembly, improves the processing accuracy of the plastic mold blank. By utilizing the lifting action of the output end of a set of first electric push rods, the conveyor assembly is tilted, allowing for switching the angle of the processed plastic mold blank. This facilitates precise analysis of the plastic mold by technicians, meeting different mold processing needs.

[0017] 2. The positioning cavity is used to place the plastic mold blank to be processed. During the rotation of the lower plate with the hinge seat, the two sets of lower plates and the horizontal plate seal the two sides of the bottom of the inner wall of the lifting cavity. As the horizontal positioning rod passes through the positioning hole, it can horizontally lock the two sets of lower plates, so that the two sets of lower plates can provide horizontal support for the bottom of the plastic mold blank to be processed. During the horizontal movement of the positioning block pushed by the output end of the cylinder, the two sides of the plastic mold blank are horizontally clamped, which improves the stability of the blank during bidirectional clamping and displacement.

[0018] 3. The output end of the first motor drives one end of the second lead screw to rotate, causing the displacement plate threaded to the second lead screw to move within the lifting cavity, thereby lifting the plastic mold blank. This is used to adjust the distance between the upper and lower surfaces of the plastic mold blank and the engraving drill bits on both sides, which can compensate for the lack of precision in traditional processing equipment during the synchronous processing of the upper and lower surfaces of the plastic mold blank.

[0019] 4. The output end of the second motor drives the first lead screw to rotate, so that it is threaded in the first internal thread hole. This drives the linkage housing to move horizontally along the radial direction of the first lead screw. During this process, the driven gear is engaged in the gap between the first positioning ring and the second positioning ring, which can synchronously drive the entire multi-angle drill bit assembly to move horizontally, so that the horizontally moving multi-angle drill bit assembly moves to different positions on the upper and lower surfaces of the plastic mold blank.

[0020] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of the plastic mold processing grinding machine according to an embodiment of the present invention is shown;

[0023] Figure 2 A front view of the structure of the plastic mold processing grinding machine according to an embodiment of the present invention is shown;

[0024] Figure 3 A schematic diagram showing the connection between the base plate and the linkage arm in an embodiment of the present invention is shown;

[0025] Figure 4 A schematic diagram showing the connection between the conveyor assembly and the multi-angle drill bit assembly according to an embodiment of the present invention is shown;

[0026] Figure 5 A schematic diagram of the structure of the transmission station assembly according to an embodiment of the present invention is shown. Figure 1 ;

[0027] Figure 6 A schematic diagram of the structure of the transmission station assembly according to an embodiment of the present invention is shown. Figure 2 ;

[0028] Figure 7 A schematic diagram of the displacement plate according to an embodiment of the present invention is shown;

[0029] Figure 8 A schematic diagram of the structure of the conveyor assembly according to an embodiment of the present invention is shown;

[0030] Figure 9 A schematic diagram of the linkage housing according to an embodiment of the present invention is shown;

[0031] Figure 10 A schematic diagram of the structure of the multi-angle drill bit assembly according to an embodiment of the present invention is shown;

[0032] Figure 11 A schematic diagram of the structure of the multi-angle drill bit assembly according to an embodiment of the present invention is shown;

[0033] Figure 12 A schematic diagram of the structure of the first lateral support component according to an embodiment of the present invention is shown;

[0034] Figure 13 A schematic diagram of the linkage cylinder according to an embodiment of the present invention is shown;

[0035] Figure 14A schematic diagram of the structure of the second lateral support component according to an embodiment of the present invention is shown.

[0036] In the diagram: 1. Base plate; 2. Conveyor assembly; 21. Linkage plate; 22. Hinge seat; 23. Lower plate; 24. Horizontal plate; 25. Positioning hole; 26. First motor; 27. Horizontal positioning rod; 28. Linkage housing; 29. ​​First lead screw; 210. Second motor; 211. Displacement plate; 212. Second lead screw; 213. Positioning cavity; 214. Positioning block; 215. Cylinder; 216. Lifting inner cavity; 217. First internal threaded hole; 218. Adjustment groove; 219. Drive gear; 220. Third motor; 221. Driven gear; 222. Drive bracket; 3. Multi-angle drill bit assembly; 31. First positioning ring; 32. Second positioning ring; 33. Protective ring; 34. Internal gear ring; 35. Limiting block; 36. Engraving drill bit; 37. Second electric push rod; 38. Reinforcing rod; 4. First lateral support assembly; 41. First side plate; 42. Hollow slide cavity; 43. Mounting hole; 44. Linkage cylinder; 45. Third lead screw; 46. Fourth motor; 47. Second internal threaded hole; 48. Guide groove; 49. Fifth motor; 410. Eccentric rod; 411. Air pump; 5. Second lateral support assembly; 51. Second side plate; 52. Storage channel; 53. Feeding inclined plate; 54. Vertical plate; 6. First electric push rod; 7. Bearing; 8. Linkage arm. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] This invention provides a plastic mold processing grinding machine, including a base plate 1; exemplarily, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown.

[0039] The top of the base plate 1 is provided with a conveyor assembly 2 for positioning the blank of the plastic mold. A multi-angle drill bit assembly 3 for carving the blank of the plastic mold is movably sleeved on the conveyor assembly 2. The multi-angle drill bit assembly 3 can move horizontally or rotatably along the conveyor assembly 2. A first lateral support assembly 4 is installed at one end of the conveyor assembly 2, and a second lateral support assembly 5 is installed at the other end of the conveyor assembly 2. Two sets of first electric push rods 6 are fixedly connected to the top of the base plate 1, and the output ends of the two sets of first electric push rods 6 are rotatably connected to bearings 7. The top of each bearing 7 is fixedly connected to a linkage arm 8, and the linkage arm 8 is fixedly connected to the bottom end of the conveyor assembly 2. When the output ends of the first electric push rods 6 move downward, the conveyor assembly 2 is tilted to facilitate the technician's observation of the processing of the plastic mold.

[0040] Specifically, the conveyor assembly 2 is used to position the plastic mold blank while also moving it vertically during the carving process. This vertical movement of the plastic mold blank, combined with the rotating or horizontally moving multi-angle drill assembly 3, improves the processing accuracy of the plastic mold blank. After processing, the conveyor assembly 2 is tilted by the lifting action of the output end of a set of first electric push rods 6, which switches the angle of the processed plastic mold blank, facilitating precise analysis of the plastic mold by technicians.

[0041] The conveyor assembly 2 includes a linkage plate 21; for example, such as Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 .

[0042] The bottom end of the linkage plate 21 is fixedly connected to four sets of hinge seats 22. A lower plate 23 is rotatably connected between every two sets of hinge seats 22. A horizontal plate 24 is fixedly connected to the top of the lower plate 23. A positioning hole 25 is provided on the lower plate 23. A horizontal positioning rod 27 is movably attached to the inner wall of the positioning hole 25. A first motor 26 is also fixedly connected to both sides of the bottom end of the linkage plate 21. A linkage housing 28 is attached to both sides of the linkage plate 21. A first lead screw 29 is provided on the linkage housing 28. A second motor 210 is driven to one end of the first lead screw 29. A lifting inner cavity 216 is provided on the surface of the linkage plate 21. A displacement plate 211 is slidably attached to the inner wall of the lifting inner cavity 216.

[0043] The displacement plate 211 has a second lead screw 212 threadedly connected to both sides. One end of the second lead screw 212 is rotatably connected to one side of the inner wall of the lifting cavity 216, and the other end of the second lead screw 212 is drivenly connected to the output end of the first motor 26. The surface of the displacement plate 211 is provided with a positioning cavity 213. The inner walls of the positioning cavity 213 are fitted with positioning blocks 214 on both sides. One side of the positioning block 214 is drivenly connected to the output end of the cylinder 215, and the side of the cylinder 215 away from the output end is embedded in the displacement plate 211.

[0044] A first internal threaded hole 217 is provided on one side wall of the linkage housing 28, and the first internal threaded hole 217 is threadedly connected to the first lead screw 29. An adjustment groove 218 is provided on the outer wall of the linkage housing 28 away from the first internal threaded hole 217. A drive gear 219 is rotatably connected to the inner wall of the adjustment groove 218. A third motor 220 is also fixedly connected to the outer wall of the linkage housing 28, and the output end of the third motor 220 is drivenly connected to the drive gear 219. A driven gear 221 is also meshed on one side of the drive gear 219. Both sides of the driven gear 221 are rotatably connected to drive brackets 222, and the other end of each drive bracket 222 is fixedly connected to the outer wall of the linkage housing 28.

[0045] The multi-angle drill bit assembly 3 includes a first positioning ring 31; for example, as shown in the figure... Figure 10 and Figure 11 As shown.

[0046] A second positioning ring 32 is horizontally arranged on one side of the first positioning ring 31. A protective ring 33 is fixedly connected to the outer wall of both the second positioning ring 32 and the first positioning ring 31. A gap is reserved between the first positioning ring 31 and the second positioning ring 32. An internal gear ring 34 is fixedly connected to the inner wall of the protective ring 33. The internal gear ring 34 is meshed with the driven gear 221, and the driven gear 221 is also slidably attached to the gap between the first positioning ring 31 and the second positioning ring 32. Four sets of limiting blocks 35 are also fixedly connected between the first positioning ring 31 and the second positioning ring 32. A carving drill bit 36 ​​is arranged between every two sets of the limiting blocks 35. One end of the carving drill bit 36 ​​is drivenly connected to the output end of the second electric push rod 37. The side of the second electric push rod 37 away from the output end is embedded in the outer wall of the protective ring 33. A reinforcing rod 38 is also arranged between the outer wall of the second electric push rod 37 and the outer wall of the protective ring 33.

[0047] Furthermore, the engraving drill bit 36 ​​includes a tip, a stepper motor, and an air jet head. The tip is connected to the shaft of the stepper motor, and the air jet head directs the air jet towards the tip.

[0048] The first lateral support assembly 4 includes a first side plate 41 and a fourth motor 46; for example, as shown... Figure 12 and Figure 13 As shown.

[0049] The first side plate 41 is fixedly connected to one side of the linkage plate 21. Two sets of hollow sliding cavities 42 are formed on the outer wall of the first side plate 41. Two sets of mounting holes 43 are also formed on the outer wall of the first side plate 41. The first lead screw 29 is fitted into each of the two sets of mounting holes 43. The outer wall of the first side plate 41 is also fixedly connected to the side wall of the second motor 210 near its output end. Linkage cylinders 44 are installed on the inner walls of both sets of hollow sliding cavities 42. Guide grooves 48 are formed on both side walls of the linkage cylinders 44. The guide groove 48 is horizontally slidably attached to the inner wall of the hollow slide cavity 42. The outer wall of the linkage cylinder 44 is provided with a second internal thread hole 47, and the second internal thread hole 47 is threadedly connected to the first lead screw 29. One end of the linkage cylinder 44 is an open structure, and a fifth motor 49 is fixedly connected at the center of the central axis of the inner wall of the linkage cylinder 44. The output end of the fifth motor 49 is driven by an eccentric rod 410, and the other end of the eccentric rod 410 is fixedly connected to an air pump 411.

[0050] Furthermore, the output end of the fourth motor 46 is connected to a third lead screw 45 for driving the linkage cylinder 4 to move horizontally.

[0051] The second lateral support assembly 5 includes a second side plate 51; for example, such as Figure 14 As shown.

[0052] The second side plate 51 is fixedly connected to the other side of the linkage plate 21. The outer wall of the second side plate 51 is provided with a storage channel 52. Two sets of feeding inclined plates 53 are fixedly connected to one side of the outer wall of the second side plate 51. A vertical plate 54 is fixedly connected between one side wall of the two sets of feeding inclined plates 53 and the outer wall of the second side plate 51. The bottom of the two sets of vertical plates 54 and the two sets of feeding inclined plates 53 are all set at the same level as the top surface of the linkage plate 21.

[0053] Specifically, the positioning cavity 213 is used to place the plastic mold blank to be processed. During the process of the lower plate 23 being rotated and connected by the hinge seat 22, the two sets of lower plates 23 and the horizontal plate 24 seal the two sides of the bottom of the inner wall of the lifting inner cavity 216. During the process of the horizontal positioning rod 27 passing through the positioning hole 25, it can horizontally lock the two sets of lower plates 23, so that the two sets of lower plates 23 provide horizontal support for the bottom of the plastic mold blank to be processed. During the process of the output end of the cylinder 215 pushing the positioning block 214 to move horizontally, the two sides of the plastic mold blank are horizontally clamped.

[0054] The output end of the first motor 26 drives one end of the second lead screw 212 to rotate, causing the displacement plate 211 threadedly connected to the second lead screw 212 to move within the lifting inner cavity 216, thereby driving the plastic mold blank to be lifted and lowered. This is used to adjust the distance between the upper and lower surfaces of the plastic mold blank and the engraving drill bits 36 on both sides, which can compensate for the lack of precision in traditional processing equipment during the synchronous processing of the upper and lower surfaces of the plastic mold blank.

[0055] The output end of the second motor 210 drives the first lead screw 29 to rotate, so that it is threaded into the first internal thread hole 217, which is used to drive the linkage housing 28 to move horizontally along the radial direction of the first lead screw 29. During this process, the driven gear 221 is movably engaged in the gap between the first positioning ring 31 and the second positioning ring 32, which can synchronously drive the entire multi-angle drill bit assembly 3 to move horizontally, so that the horizontally moving multi-angle drill bit assembly 3 moves to different positions above and below the plastic mold blank.

[0056] The output end of the third motor 220 can also drive the drive gear 219 to rotate, so that the driven gear 221 drives the internal gear ring 34 during rotation, so that the two sets of engraving drill bits 36 rotate synchronously. This is used to adjust the angle between the two sets of engraving drill bits 36 and the upper and lower surfaces of the plastic mold blank. Then, the output end of the second electric push rod 37 drives the engraving drill bit 36 ​​on the adjacent side to move, so that the moving engraving drill bit 36 ​​gradually approaches different surfaces of the plastic mold blank, in order to achieve the purpose of multi-angle dual processing of the plastic mold blank.

[0057] The output end of the fifth motor 49 drives the eccentric rod 410 and the air pump 411 to rotate, causing the air pump 411 to move in a ring along the edge of the port of the linkage cylinder 44, which is used to clean different positions on the upper and lower surfaces of the plastic mold blank during the processing. Then, as the output end of the fourth motor 46 drives the third lead screw 45 to rotate, the linkage cylinder 44 moves horizontally along the radial direction of the third lead screw 45, which is used to expand the cleaning range on the upper and lower surfaces of the plastic mold blank during the processing.

[0058] The two sets of feeding sloping plates 53 can collect the processing waste at the horizontal position of the top surface of the plastic mold blank, and use the collection channel 52 to centrally process the collected plastic waste, so as to reduce the pollution of the plastic mold processing environment.

[0059] The working principle of the plastic mold processing grinding machine proposed in this embodiment of the invention is as follows:

[0060] The positioning cavity 213 is used to place the plastic mold blank to be processed. During the process of the lower plate 23 being rotated and connected by the hinge seat 22, the two sets of lower plates 23 and the horizontal plate 24 seal the two sides of the bottom of the inner wall of the lifting inner cavity 216. During the process of the horizontal positioning rod 27 passing through the positioning hole 25, it can horizontally lock the two sets of lower plates 23, so that the two sets of lower plates 23 provide horizontal support for the bottom of the plastic mold blank to be processed. During the process of the output end of the cylinder 215 pushing the positioning block 214 to move horizontally, the two sides of the plastic mold blank are horizontally clamped.

[0061] The output end of the first motor 26 drives one end of the second lead screw 212 to rotate, causing the displacement plate 211 threadedly connected to the second lead screw 212 to move within the lifting inner cavity 216, thereby driving the plastic mold blank to move up and down. This is used to adjust the distance between the upper and lower surfaces of the plastic mold blank and the engraving drill bits 36 on both sides, which can compensate for the lack of precision in traditional processing equipment during the synchronous processing of the upper and lower surfaces of the plastic mold blank.

[0062] The output end of the second motor 210 drives the first lead screw 29 to rotate, so that it is threaded into the first internal thread hole 217, which is used to drive the linkage housing 28 to move horizontally along the radial direction of the first lead screw 29. During this process, the driven gear 221 is movably engaged in the gap between the first positioning ring 31 and the second positioning ring 32, which can synchronously drive the entire multi-angle drill bit assembly 3 to move horizontally, so that the horizontally moving multi-angle drill bit assembly 3 moves to different positions above and below the plastic mold blank.

[0063] The output of the third motor 220 can also drive the drive gear 219 to rotate, which in turn drives the internal gear ring 34 during the rotation of the driven gear 221, causing the two sets of engraving drill bits 36 to rotate synchronously. This is used to adjust the angle between the two sets of engraving drill bits 36 and the upper and lower surfaces of the plastic mold blank. Then, the output of the second electric push rod 37 is used to drive the engraving drill bit 36 ​​on the adjacent side to move, so that the moving engraving drill bit 36 ​​gradually approaches different surfaces of the plastic mold blank, in order to achieve the purpose of multi-angle dual processing of the plastic mold blank.

[0064] The output of the fifth motor 49 drives the eccentric rod 410 and the air pump 411 to rotate, causing the air pump 411 to move in a ring along the edge of the port of the linkage cylinder 44, which is used to clean different positions on the upper and lower surfaces of the plastic mold blank during the processing. Then, the output of the fourth motor 46 drives the third lead screw 45 to rotate, causing the linkage cylinder 44 to move horizontally along the radial direction of the third lead screw 45, which is used to expand the cleaning range on the upper and lower surfaces of the plastic mold blank during the processing.

[0065] Two sets of feeding ramps 53 can collect the processing waste at the top horizontal position of the plastic mold blank, and use the collection channel 52 to centrally process the collected plastic waste, so as to reduce the pollution of the plastic mold processing environment.

[0066] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A plastic mold processing grinding machine, characterized in that: The system includes a base plate; a conveyor assembly for positioning the blank of the plastic mold is provided on the top of the base plate; a multi-angle drill bit assembly for carving the blank of the plastic mold is movably sleeved on the conveyor assembly; the multi-angle drill bit assembly moves horizontally or rotatably along the conveyor assembly; a first lateral support assembly is installed at one end of the conveyor assembly; a second lateral support assembly is installed at the other end of the conveyor assembly; two sets of first electric push rods are fixedly connected to the top of the base plate; the output ends of the two sets of first electric push rods are rotatably connected to bearings; a linkage arm is fixedly connected to the top of each bearing; and the linkage arm is fixedly connected to the bottom end of the conveyor assembly. As the output ends of the first electric push rods move downward, the conveyor assembly is tilted to facilitate technicians' observation of the processing of the plastic mold. The conveyor assembly includes a linkage plate; four sets of hinge seats are fixedly connected to the bottom end of the linkage plate, and a lower plate is rotatably connected between every two sets of hinge seats. A horizontal plate is fixedly connected to the top of the lower plate, and a positioning hole is provided on the lower plate. A horizontal positioning rod is movably fitted to the inner wall of the positioning hole. A first motor is also fixedly connected to both sides of the bottom end of the linkage plate. A linkage housing is fitted to both sides of the linkage plate. A first lead screw is provided on the linkage housing. A second motor is driven to one end of the first lead screw. A lifting inner cavity is provided on the surface of the linkage plate, and a displacement plate is slidably fitted to the inner wall of the lifting inner cavity. Both sides of the displacement plate are threaded with a second lead screw. One end of the second lead screw is rotatably connected to one side of the inner wall of the lifting cavity, and the other end of the second lead screw is driven to the output end of the first motor. The surface of the displacement plate is provided with a positioning cavity. Both sides of the inner wall of the positioning cavity are fitted with positioning blocks. One side of each positioning block is driven to the output end of a cylinder, and the side of the cylinder away from the output end is embedded in the displacement plate. A first internal threaded hole is provided on one side wall of the linkage housing, and the first internal threaded hole is threadedly connected to a first lead screw. An adjustment groove is provided on the outer wall of the linkage housing away from the first internal threaded hole. A drive gear is rotatably connected to the inner wall of the adjustment groove. A third motor is also fixedly connected to the outer wall of the linkage housing, and the output end of the third motor is drivenly connected to the drive gear. A driven gear is also meshed on one side of the drive gear. Drive brackets are rotatably connected to both sides of the driven gear, and the end of the drive bracket away from the driven gear is fixedly connected to the outer wall of the linkage housing.

2. The plastic mold processing grinding machine according to claim 1, characterized in that: The multi-angle drill bit assembly includes a first positioning ring; a second positioning ring is horizontally arranged on one side of the first positioning ring, and protective rings are fixedly connected to the outer walls of both the second positioning ring and the first positioning ring, with a gap reserved between the first positioning ring and the second positioning ring.

3. The plastic mold processing grinding machine according to claim 2, characterized in that: An internal gear ring is fixedly connected to the inner wall of the protective ring. The internal gear ring meshes with the driven gear, and the driven gear is also slidably connected to the gap between the first positioning ring and the second positioning ring. Four sets of limit blocks are also fixedly connected between the first positioning ring and the second positioning ring.

4. The plastic mold processing grinding machine according to claim 3, characterized in that: An engraving drill bit is provided between every two sets of the limiting blocks. One end of the engraving drill bit is connected to the output end of a second electric push rod. The side of the second electric push rod away from the output end is embedded in the outer wall of the protective ring. A reinforcing rod is also provided between the outer wall of the second electric push rod and the outer wall of the protective ring.

5. The plastic mold processing grinding machine according to claim 1, characterized in that: The first lateral support assembly includes a first side plate and a fourth motor; the first side plate is fixedly connected to one side of the linkage plate, and the outer wall of the first side plate has two sets of hollow sliding cavities. The outer wall of the first side plate also has two sets of mounting holes, and both sets of mounting holes are fitted onto the first lead screw. The outer wall of the first side plate is also fixedly connected to the side wall of the second motor near the output end.

6. The plastic mold processing grinding machine according to claim 5, characterized in that: Both sets of hollow sliding cavities are equipped with linkage cylinders on their inner walls. Guide grooves are provided on both side walls of the linkage cylinders, and the guide grooves are horizontally slidably connected to the inner walls of the hollow sliding cavities. A second internal threaded hole is provided on the outer wall of the linkage cylinder, and the second internal threaded hole is threadedly connected to the first lead screw. One end of the linkage cylinder is an open structure, and a fifth motor is fixedly connected to the center of the central axis of the inner wall of the linkage cylinder. An eccentric rod is driven to the output end of the fifth motor, and an air pump is fixedly connected to the other end of the eccentric rod. A third lead screw for driving the linkage cylinder to move horizontally is driven to the output end of the fourth motor.

7. The plastic mold processing grinding machine according to claim 1, characterized in that: The second lateral support assembly includes a second side plate; the second side plate is fixedly connected to the other side of the linkage plate, and a storage channel is provided on the outer wall of the second side plate. Two sets of feeding inclined plates are fixedly connected to one side of the outer wall of the second side plate. Vertical plates are fixedly connected between one side wall of the two sets of feeding inclined plates and the outer wall of the second side plate. The bottoms of the two sets of vertical plates and the two sets of feeding inclined plates are all set at the same level as the top surface of the linkage plate.

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