A flash polishing apparatus for an injection molding machine
By using the positioning, pushing, and cooling mechanisms of the flash polishing equipment for injection molding machines, the problems of displacement and single-sided polishing during injection molding have been solved, achieving high-efficiency, double-sided polishing and liquid recycling, thus improving polishing quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI XINCHEN AUTOMOBILE CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-07-21
AI Technical Summary
During the grinding process of existing injection molding machines, the molded parts are prone to displacement, which affects the grinding quality. In addition, grinding can only be done on one side, which is cumbersome and inefficient.
An injection molding machine flash polishing device was designed, comprising a positioning mechanism, a pushing mechanism, a polishing mechanism and a cooling mechanism. The positioning mechanism tightly clamps the injection molded part, the pushing mechanism adjusts the polishing position, the polishing motor drives the polishing disc to rotate, the cooling mechanism lowers the temperature, and the filter assembly achieves solid-liquid separation and liquid recycling.
It effectively prevents displacement of injection molded parts, improves grinding quality and efficiency, expands the grinding range, simplifies operation steps, ensures double-sided grinding, reduces temperature, and enables the recycling of liquids.
Smart Images
Figure CN224526740U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polishing equipment technology, and in particular to a flash polishing equipment for injection molding machines. Background Technology
[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. They are classified as vertical, horizontal, and all-electric. Injection molding machines heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity. Injection molded parts are plastic products produced through the injection molding process and are widely used in many fields such as automobiles, home appliances, electronics, medical, and packaging.
[0003] Flash generated during the molding process of injection molded parts can easily cause displacement of the injection molded parts during the existing grinding process, affecting the grinding quality of the injection molded parts. At the same time, the grinding process can only grind one side of the injection molded parts, making the grinding operation cumbersome and reducing efficiency. Utility Model Content
[0004] This invention addresses the technical problems of existing grinding processes, which easily cause displacement of injection molded parts, affecting the grinding quality of the injection molded parts, and the fact that the grinding process can only grind one side of the injection molded parts, making the grinding operation cumbersome and reducing efficiency. Therefore, this invention provides a flash grinding device for injection molding machines.
[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:
[0006] This utility model provides a flash grinding device for injection molding machines, the flash grinding device comprising:
[0007] A grinding table, wherein a positioning mechanism is fixedly installed on the top surface of the grinding table, and the positioning mechanism is used for clamping and positioning injection molded parts;
[0008] A filter assembly is installed at the bottom of the positioning mechanism and is used for solid-liquid separation of the flushing waste liquid;
[0009] A pushing mechanism is installed on the left side surface of the grinding table, and a grinding mechanism is installed at the output end of the pushing mechanism. The grinding mechanism is used for grinding injection molded parts.
[0010] A cooling mechanism is installed on the surface of the grinding table and is used to cool the area where the grinding disc and the injection molded part are being ground.
[0011] Furthermore, a support leg is fixedly installed on the bottom side surface of the grinding table, and the four support legs are located at the four corners of the bottom side of the grinding table.
[0012] Furthermore, the positioning mechanism includes an outlet shell, a sieve plate, a fixed base, an electric push rod, and a clamping plate. The outlet shell is fixedly installed on the surface of the grinding table. The top of the outlet shell is fixedly connected to the sieve plate. The top side of the sieve plate is fixedly connected to the fixed base. The side surface of the fixed base is fixedly installed with an electric push rod. The output end of the electric push rod is fixedly connected to the clamping plate. The side surface of the clamping plate is equipped with a protrusion. The bottom of the outlet shell is provided with a liquid collection shell.
[0013] Furthermore, the clamping plate is slidably connected to the top surface of the sieve plate, and protrusions are uniformly installed on the inner surface of the clamping plate.
[0014] Furthermore, the filter assembly includes a filter frame, a plate-shaped filter screen, an arc-shaped filter screen, a fixing post, and a sealing plate. The filter frame is slidably connected to the bottom side surface of the outlet shell. The plate-shaped filter screen is fixedly connected to the inner wall of the filter frame. The arc-shaped filter screen is fixedly connected to the bottom end of the plate-shaped filter screen. The bottom side surface of the plate-shaped filter screen is fixedly connected to the inner wall of the filter frame through the fixing post. The sealing plate is fixedly connected to the left end of the filter frame.
[0015] Furthermore, the pushing mechanism includes a servo motor, a threaded column, a pushing seat, a guide column, and a top plate. The servo motor is mounted on the rear surface of the grinding table. The output end of the servo motor is connected to the threaded column. The pushing seat is threaded onto the surface of the threaded column. The top side of the pushing seat is fixedly connected to the guide column. The top end of the guide column is fixedly connected to the top plate.
[0016] Furthermore, the grinding mechanism includes a hydraulic cylinder, a movable seat, a pneumatic cylinder, a slide, a mounting platform, a grinding motor, and a grinding disc. The hydraulic cylinder is fixedly installed on the top side surface of the top plate. The output end of the hydraulic cylinder is fixedly connected to the movable seat. A pneumatic cylinder is fixedly installed on the front side of the movable seat. The output end of the pneumatic cylinder is fixedly connected to the slide. A mounting platform is fixedly installed on the front side of the slide. A grinding motor is fixedly installed on the front side of the mounting platform. A grinding disc is sleeved at the end of the output shaft of the grinding motor.
[0017] Furthermore, the slide block is slidably connected to the front side of the movable seat, and a sliding groove is provided on the bottom side of the movable seat. A slider is slidably connected in the sliding groove, and the slider is fixedly connected to the inner wall of the slide block.
[0018] Furthermore, a limiting component is fixedly connected to the front side of the mounting platform. The limiting component includes a limiting post and a limiting ring. The limiting post is fixedly connected to the front end of the mounting platform, and the limiting ring is fixedly connected to the front end of the limiting post. The limiting ring is sleeved on the surface of the output shaft of the grinding motor.
[0019] Furthermore, the cooling mechanism includes a filter, a liquid extraction pipe, a liquid extraction pump, a liquid injection pipe, a nozzle, and a support rod. The filter is connected to the bottom end of the liquid collection shell, the filter is connected to the liquid extraction pipe, the end of the liquid extraction pipe is connected to the liquid extraction pump, the liquid extraction pump is fixedly installed on the front surface of the slide, the output end of the liquid extraction pump is fixedly connected to the liquid injection pipe, the end of the liquid injection pipe is fixedly connected to the nozzle, and the bottom side of the end of the liquid injection pipe is fixedly connected to the top side of the limiting ring through the support rod.
[0020] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.
[0021] The positive and progressive effects of this utility model are as follows:
[0022] The aforementioned injection molding machine flash grinding equipment, through its positioning mechanism, facilitates tight clamping of the injection molded parts, preventing displacement during grinding and ensuring grinding quality. The included pushing and grinding mechanisms allow for easy adjustment of the grinding disc position. The grinding motor drives the grinding disc to rotate, facilitating grinding of the top or sides of the injection molded parts, increasing the grinding range, reducing grinding steps, and improving efficiency. During grinding, a filter assembly slides and engages a filter frame within the outlet shell. The filter frame, through an arc-shaped filter screen and a plate-shaped filter screen fixed to its inner wall, filters and intercepts the rinsing waste liquid. The intercepted solid impurities are easily removed from the filter frame for subsequent cleaning, while the filtered liquid falls into a collection shell for reuse. Simultaneously, a cooling mechanism effectively reduces the grinding temperature between the injection molded parts and the grinding disc, improving the cooling effect. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this application 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 only some embodiments of this application.
[0024] Figure 1 This is a three-dimensional structural diagram of the grinding equipment of this utility model.
[0025] Figure 2 This is a three-dimensional structural diagram of the rear side of the grinding equipment of this utility model.
[0026] Figure 3 This is a three-dimensional structural diagram of the front bottom of the grinding equipment of this utility model, viewed from below.
[0027] Figure 4 The present invention relates to a grinding device. Figure 3 A magnified schematic diagram of the structure at point A in the middle.
[0028] Figure 5This is a bottom view of the filter frame structure of the grinding equipment of this utility model.
[0029] Figure 6 This is a side sectional view of the filter frame of the grinding equipment of this utility model.
[0030] Explanation of reference numerals in the attached figures
[0031] 1. Grinding table; 2. Support leg; 3. Positioning mechanism; 31. Outlet shell; 32. Sieve plate; 33. Fixing base; 34. Electric push rod; 35. Clamping plate; 36. Protrusion; 37. Liquid collection shell; 4. Filter assembly; 41. Filter frame; 42. Plate filter screen; 43. Arc-shaped filter screen; 44. Fixing column; 45. Sealing plate; 5. Pushing mechanism; 51. Servo motor; 52. Threaded column; 53. Pushing base; 54. 55. Guide post; 6. Top plate; 7. Grinding mechanism; 8. Hydraulic cylinder; 9. Moving seat; 10. Pneumatic cylinder; 11. Slide seat; 12. Sliding block; 13. Mounting platform; 14. Grinding motor; 15. Grinding disc; 16. Limiting assembly; 17. Limiting post; 18. Limiting ring; 19. Cooling mechanism; 20. Filter; 21. Liquid extraction pipe; 32. Liquid extraction pump; 43. Liquid injection pipe; 54. Nozzle; 55. Support rod. Detailed Implementation
[0032] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0034] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0035] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0036] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0037] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.
[0038] like Figure 1-6 As shown, the flash grinding equipment for injection molding machines includes:
[0039] A grinding table 1, wherein a positioning mechanism 3 is fixedly installed on the top surface of the grinding table 1, and the positioning mechanism 3 is used for clamping and positioning injection molded parts;
[0040] Filter assembly 4 is installed at the bottom of positioning mechanism 3 and is used for solid-liquid separation of flushing waste liquid.
[0041] A pushing mechanism 5 is installed on the left side surface of the grinding table 1. A grinding mechanism 6 is installed at the output end of the pushing mechanism 5. The grinding mechanism 6 is used for grinding injection molded parts.
[0042] Cooling mechanism 7 is installed on the surface of the grinding table 1 and is used to cool the grinding disc 68 and the grinding area of the injection molded part.
[0043] The positioning mechanism 3 ensures tight clamping of the injection molded part, preventing displacement during grinding and guaranteeing grinding quality. The pushing mechanism 5 and grinding mechanism 6 facilitate adjustment of the grinding disc 68 position. The grinding motor 67 drives the grinding disc 68 to rotate, allowing for grinding of the top or sides of the injection molded part, increasing the grinding range, reducing grinding steps, and improving efficiency. During grinding, the filter assembly 4 slides and engages the filter frame 41 within the outlet shell 31. The filter frame 41 filters and intercepts the rinsing waste liquid through the arc-shaped filter screen 43 and plate-shaped filter screen 42 fixedly connected to the inner wall. The intercepted solid impurities are easily removed from the filter frame 41 for cleaning, while the filtered liquid falls into the collection shell for recycling. Simultaneously, the cooling mechanism 7 effectively reduces the grinding temperature when the injection molded part contacts the grinding disc 68, improving the cooling effect.
[0044] The grinding table 1 is fixedly mounted with support legs 2 on its bottom side surface, and the four support legs 2 are located at the four corners of the bottom side of the grinding table 1.
[0045] The positioning mechanism 3 includes an outlet shell 31, a sieve plate 32, a fixed base 33, an electric push rod 34, and a clamping plate 35. The outlet shell 31 is fixedly installed on the surface of the grinding table 1. The sieve plate 32 is fixedly connected to the top of the outlet shell 31. The fixed base 33 is fixedly connected to the top side of the sieve plate 32. The electric push rod 34 is fixedly installed on the side surface of the fixed base 33. The output end of the electric push rod 34 is fixedly connected to the clamping plate 35. The side surface of the clamping plate 35 is equipped with a protrusion 36. A liquid collection shell is provided at the bottom of the outlet shell 31.
[0046] Place the injection molded part on the top side of the sieve plate 32, start the electric push rod 34, the electric push rod 34 pushes the fixedly connected clamping plate 35 to move, the clamping plate 35 fits against the outer surface of the injection molded part through the protrusion 36, which makes it easy to tightly clamp the injection molded part, avoid the displacement of the injection molded part during grinding, and ensure the grinding quality of the injection molded part.
[0047] The clamping plate 35 is slidably connected to the top side surface of the sieve plate 32, and protrusions 36 are uniformly installed on the inner surface of the clamping plate 35.
[0048] The filter assembly 4 includes a filter frame 41, a plate-shaped filter screen 42, an arc-shaped filter screen 43, a fixing post 44, and a sealing plate 45. The filter frame 41 is slidably connected to the bottom side surface of the outlet shell 31. The plate-shaped filter screen 42 is fixedly connected to the inner wall of the filter frame 41. The arc-shaped filter screen 43 is fixedly connected to the bottom end of the plate-shaped filter screen 42. The bottom side surface of the plate-shaped filter screen 42 is fixedly connected to the inner wall of the filter frame 41 through the fixing post 44. The sealing plate 45 is fixedly connected to the left end of the filter frame 41.
[0049] The filter frame 41 is slidably engaged in the outlet shell 31. The filter frame 41 filters and intercepts the flushing waste liquid through the arc-shaped filter screen 43 and the plate-shaped filter screen 42 fixedly connected to the inner wall. The intercepted solid impurities are easy to remove the filter frame 41 for cleaning, while the filtered liquid falls into the liquid collection shell for easy recycling.
[0050] The pushing mechanism 5 includes a servo motor 51, a threaded column 52, a pushing seat 53, a guide column 54, and a top plate 55. The servo motor 51 is mounted on the rear surface of the grinding table 1. The output end of the servo motor 51 is connected to the threaded column 52. The pushing seat 53 is threaded onto the surface of the threaded column 52. The top side of the pushing seat 53 is fixedly connected to the guide column 54. The top end of the guide column 54 is fixedly connected to the top plate 55.
[0051] Start the servo motor 51, which drives the threaded rod to rotate. The threaded rod moves the push seat 53 with its surface threaded sleeve, and the push seat 53 moves the guide column 54, which facilitates the movement and adjustment of the push seat 53.
[0052] The grinding mechanism 6 includes a hydraulic cylinder 61, a movable seat 62, a pneumatic cylinder 63, a slide 64, a mounting platform 66, a grinding motor 67, and a grinding disc 68. The hydraulic cylinder 61 is fixedly installed on the top side surface of the top plate 55. The output end of the hydraulic cylinder 61 is fixedly connected to the movable seat 62. The pneumatic cylinder 63 is fixedly installed on the front side of the movable seat 62. The output end of the pneumatic cylinder 63 is fixedly connected to the slide 64. The mounting platform 66 is fixedly installed on the front side of the slide 64. The grinding motor 67 is fixedly installed on the front side of the mounting platform 66. The grinding disc 68 is sleeved at the end of the output shaft of the grinding motor 67.
[0053] Start the hydraulic cylinder 61, which pushes the fixedly connected movable seat 62 to move. The movable seat 62 drives the cylinder 63 to move, which in turn adjusts the movement of the grinding disc 68 in sync. This makes it easy to adjust the position of the grinding disc 68. Meanwhile, the grinding motor 67 drives the grinding disc 68 to rotate, which makes it easy to grind the top or side of the injection molded part, increasing the grinding range, reducing the number of grinding operation steps, and improving efficiency.
[0054] The slide block 64 is slidably connected to the front side of the movable seat 62. A sliding groove is provided on the bottom side of the movable seat 62, and a slider 65 is slidably connected in the sliding groove. The slider 65 is fixedly connected to the inner wall of the slide block 64.
[0055] The mounting platform 66 is fixedly connected to the front side of the limiting component 69, which includes a limiting post 691 and a limiting ring 692. The limiting post 691 is fixedly connected to the front end of the mounting platform 66, and the limiting ring 692 is fixedly connected to the front end of the limiting post 691. The limiting ring 692 is sleeved on the surface of the output shaft of the grinding motor 67.
[0056] The cooling mechanism 7 includes a filter 71, a liquid extraction pipe 72, a liquid extraction pump 73, a liquid injection pipe 74, a nozzle 75, and a support rod 76. The filter 71 is connected to the bottom end of the liquid collection shell 37 and the liquid extraction pipe 72. The end of the liquid extraction pipe 72 is connected to the liquid extraction pump 73. The liquid extraction pump 73 is fixedly installed on the front surface of the slide 64. The output end of the liquid extraction pump 73 is fixedly connected to the liquid injection pipe 74. The end of the liquid injection pipe 74 is fixedly connected to the nozzle 75. The bottom side of the end of the liquid injection pipe 74 is fixedly connected to the top side of the limiting ring 692 through the support rod 76.
[0057] It facilitates the extraction of filtered liquid, and the extracted liquid is discharged again for cooling, which effectively reduces the grinding temperature when the injection molded part is in contact with the grinding disc 68 and improves the cooling effect.
[0058] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.
[0059] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.
Claims
1. A flash grinding device for injection molding machines, characterized in that, The flash removal equipment for injection molding machines includes: A grinding table (1) is provided with a positioning mechanism (3) fixedly installed on the top surface of the grinding table (1). The positioning mechanism (3) is used for clamping and positioning injection molded parts. The filter assembly (4) is installed at the bottom of the positioning mechanism (3) and is used for solid-liquid separation of the flushing waste liquid. A pushing mechanism (5) is installed on the left side surface of the grinding table (1), and a grinding mechanism (6) is installed at the output end of the pushing mechanism (5). The grinding mechanism (6) is used for grinding injection molded parts. Cooling mechanism (7) is installed on the surface of the grinding table (1) and is used to cool the grinding disc (68) and the grinding area of the injection molded part.
2. The flash grinding equipment for injection molding machines as described in claim 1, characterized in that: The grinding table (1) has a support leg (2) fixedly installed on its bottom side surface. The four support legs (2) are located at the four corners of the bottom side of the grinding table (1).
3. The flash grinding equipment for injection molding machines as described in claim 1, characterized in that: The positioning mechanism (3) includes an outlet shell (31), a sieve plate (32), a fixed seat (33), an electric push rod (34), and a clamping plate (35). The outlet shell (31) is fixedly installed on the surface of the grinding table (1). The top of the outlet shell (31) is fixedly connected to the sieve plate (32). The top side of the sieve plate (32) is fixedly connected to the fixed seat (33). The side surface of the fixed seat (33) is fixedly installed with the electric push rod (34). The output end of the electric push rod (34) is fixedly connected to the clamping plate (35). The side surface of the clamping plate (35) is equipped with a protrusion (36). The bottom end of the outlet shell (31) is provided with a liquid collection shell (37).
4. The flash grinding equipment for injection molding machines as described in claim 3, characterized in that: The clamping plate (35) is slidably connected to the top side surface of the sieve plate (32), and protrusions (36) are uniformly installed on the inner surface of the clamping plate (35).
5. The flash grinding equipment for injection molding machines as described in claim 1, characterized in that: The filter assembly (4) includes a filter frame (41), a plate-shaped filter screen (42), an arc-shaped filter screen (43), a fixing post (44), and a sealing plate (45). The filter frame (41) is slidably connected to the bottom side surface of the outlet shell (31). The plate-shaped filter screen (42) is fixedly connected to the inner wall of the filter frame (41). The arc-shaped filter screen (43) is fixedly connected to the bottom end of the plate-shaped filter screen (42). The bottom side surface of the plate-shaped filter screen (42) is fixedly connected to the inner wall of the filter frame (41) through the fixing post (44). The sealing plate (45) is fixedly connected to the left end of the filter frame (41).
6. The flash grinding equipment for injection molding machines as described in claim 1, characterized in that: The pushing mechanism (5) includes a servo motor (51), a threaded column (52), a pushing seat (53), a guide column (54), and a top plate (55). The servo motor (51) is mounted on the rear surface of the grinding table (1). The output end of the servo motor (51) is connected to the threaded column (52). The threaded column (52) is threadedly fitted with the pushing seat (53). The top side of the pushing seat (53) is fixedly connected to the guide column (54). The top end of the guide column (54) is fixedly connected to the top plate (55).
7. The flash grinding equipment for injection molding machines as described in claim 1, characterized in that: The grinding mechanism (6) includes a hydraulic cylinder (61), a movable seat (62), a pneumatic cylinder (63), a slide (64), a mounting platform (66), a grinding motor (67), and a grinding disc (68). The hydraulic cylinder (61) is fixedly installed on the top side surface of the top plate (55). The output end of the hydraulic cylinder (61) is fixedly connected to the movable seat (62). The front side of the movable seat (62) is fixedly installed with a pneumatic cylinder (63). The output end of the pneumatic cylinder (63) is fixedly connected to the slide (64). The front side of the slide (64) is fixedly installed with a mounting platform (66). The front side of the mounting platform (66) is fixedly installed with a grinding motor (67). The end of the output shaft of the grinding motor (67) is sleeved with a grinding disc (68).
8. The flash grinding equipment for injection molding machines as described in claim 7, characterized in that: The slide block (64) is slidably connected to the front side of the movable seat (62). A sliding groove is provided on the bottom side of the movable seat (62), and a slider (65) is slidably connected in the sliding groove. The slider (65) is fixedly connected to the inner wall of the slide block (64).
9. The flash grinding equipment for injection molding machines as described in claim 7, characterized in that: The mounting platform (66) is fixedly connected to a limiting component (69) on the front side. The limiting component (69) includes a limiting post (691) and a limiting ring (692). The limiting post (691) is fixedly connected to the front end of the mounting platform (66), and the limiting ring (692) is fixedly connected to the front end of the limiting post (691). The limiting ring (692) is sleeved on the surface of the output shaft of the grinding motor (67).
10. The flash grinding equipment for injection molding machines as described in claim 1, characterized in that: The cooling mechanism (7) includes a filter (71), a liquid extraction pipe (72), a liquid extraction pump (73), a liquid injection pipe (74), a nozzle (75), and a support rod (76). The filter (71) is connected to the bottom end of the liquid collection shell (37). The filter (71) is connected to the liquid extraction pipe (72). The end of the liquid extraction pipe (72) is connected to the liquid extraction pump (73). The liquid extraction pump (73) is fixedly installed on the front surface of the slide (64). The output end of the liquid extraction pump (73) is fixedly connected to the liquid injection pipe (74). The end of the liquid injection pipe (74) is fixedly connected to the nozzle (75). The bottom side of the end of the liquid injection pipe (74) is fixedly connected to the top side of the limiting ring (692) through the support rod (76).