Finishing device for injection molding filter cartridge

Abstract

The invention relates to the technical field of injection molding post-processing, and provides a trimming device for injection molding of a filter cartridge, the trimming device comprises a shell mechanism, a circulating rotating mechanism, a first trimming assembly, a second trimming assembly, an automatic feeding assembly and a control panel, a feed port and a discharge port are respectively arranged right above and obliquely below a sealing shell; a first toothed rail and a second toothed rail are arranged on the inner wall of the sealing shell, the circulating rotating mechanism comprises a driving part, an annular shell and a center shaft, the first finishing assembly comprises a rotating sleeve, a second transmission gear and a grinding protrusion, the second finishing assembly comprises a rotating shaft, a third transmission gear and a flexible grinding roller, and the automatic feeding assembly comprises a transmission pipe and a semicircular pipe. A second transmission gear and a third transmission gear are respectively in transmission connection with a first toothed rail and a second toothed rail, so that the purpose of driving a grinding bulge and a flexible grinding roller to synchronously grind and deburr the outer side and the inner side of the filter cartridge is achieved, and the device has the characteristics of automatic feeding and discharging and synchronous grinding of the inner side and the outer side of the filter cartridge.

Description

Technical Field

[0001] The invention relates to the technical field of post-processing of injection molding, and in particular to a finishing device for an injection-molded filter cartridge. Background Art

[0002] Filter cartridges are widely used in the environmental protection industry (water treatment, air purification, industrial dust removal, etc.). They are mainly used for filtering liquids and gases, helping to remove pollutants and impurities, protecting the environment and promoting the sustainable use of resources. Filter cartridges are generally made by injection molding. After the filter cartridge is processed by the injection mold, it needs to be ground to remove burrs and irregular edges generated during the molding process to ensure a smooth surface.

[0003] Patent No. CN118721629B discloses a device for cutting and polishing water outlets for producing electronic cigarette shells, including a structural design in which a workbench, a feeding shell, a rotating mechanism, and a polishing mechanism are combined with each other. On the one hand, the first meshing teeth and the second meshing teeth can be sequentially connected to the transmission gear to automatically feed the tubular electronic cigarette shell in the feeding channel into the cylinder and from the cylinder into the unloading channel. When the opening of the tubular electronic cigarette shell is in a horizontal state, the cutter and the polishing block moving with the telescopic member can successively cut the water outlet and polish the cut marks. On the other hand, the cylinder rotating coaxially with the cylinder uses a curved groove and a ball head sliding connection to achieve the purpose of controlling the limit block to fix and release the tubular electronic cigarette shell. It has the characteristics of ingenious structural coordination, easy use, high processing efficiency and strong practicality.

[0004] The above technical solution also has the following defects: since there are burrs on both the inside and outside of the filter cartridge, both sides need to be deburred, but the above technical solution can only grind the end of the filter cartridge, but cannot automatically grind the inner and outer walls of the filter cartridge at the same time, thereby failing to efficiently complete the grinding and deburring of both sides of the filter cartridge. Summary of the invention

[0005] The object of the present invention is to provide a finishing device for an injection molded filter cartridge, aiming to solve the problems existing when using the existing cutting and grinding device.

[0006] To achieve the above object, the present invention provides the following technical solution: a finishing device for injection molded filter cartridges, comprising a housing mechanism and a control panel, wherein the housing mechanism comprises a sealing shell, a feed port, a discharge port, a feed rack, a fixing rack, a first rack and a second rack, wherein the feed port and the discharge port are respectively arranged above and below the sealing shell, wherein the feed rack and the fixing rack are both fixedly connected to the top of the sealing shell, wherein the inner wall of the sealing shell is provided with a first rack and a second rack, wherein the control panel is fixedly connected to the side wall of the sealing shell, and further comprising: Circular rotating mechanism, the circular rotating mechanism includes a driving part, an annular housing and a central shaft, the annular housing and the central shaft are fixedly connected, the annular housing is located inside the sealed housing, the central shaft is rotatably connected to the sealed housing, the driving part is fixedly connected to the sealed housing, and the driving part is in transmission connection with the central shaft; First trimming component, the first trimming component includes a rotating sleeve, a second transmission gear and a grinding projection, the second transmission gear is fixedly connected to the rotating sleeve, the inner wall of the rotating sleeve is provided with a grinding projection, and a plurality of the rotating sleeves are all rotatably connected to the annular housing, and the first tooth rail is in transmission connection with the second transmission gear; Second trimming component, the second trimming component includes a rotating shaft, a third transmission gear and a flexible grinding roller, both the third transmission gear and the flexible grinding roller are fixedly connected to the rotating shaft, the rotating shaft is rotatably connected to one end of the rotating sleeve close to the first tooth rail, the second tooth rail is in transmission connection with the third transmission gear, a filter cartridge is placed between the grinding projection and the flexible grinding roller, and the grinding projection and the flexible grinding roller are respectively in sliding contact with the outer wall and the inner wall of the filter cartridge; Automatic feeding component, the automatic feeding component includes a transmission pipe and a semi-circular pipe, the transmission pipe is rotatably connected to the fixed frame, the semi-circular pipe is fixedly connected to the transmission pipe, the central shaft is in transmission connection with the transmission pipe, the semi-circular pipe is located directly above the feeding port, the feeding frame is located on one side of the semi-circular pipe, and the feeding frame is inclined towards the semi-circular pipe.

[0007] As a further scheme of the present invention, the cross-section of the sealed housing is circular, the first tooth rail and the second tooth rail are respectively located on the inner walls of both sides of the sealed housing, when the annular housing rotates, the rotating directions of the rotating sleeve and the flexible grinding roller are opposite, so as to prevent the filter cartridge from rotating synchronously with the rotating sleeve or the flexible grinding roller.

[0008] As a further scheme of the present invention, the circular rotating mechanism further includes a first transmission gear, a worm gear and a mounting hole, both the first transmission gear and the worm gear are fixedly connected to the central shaft, the driving part is in transmission connection with the first transmission gear, the surface of the annular housing is provided with a mounting hole, and the rotating sleeve is rotatably connected in the mounting hole.

[0009] As a further scheme of the present invention, the automatic feeding component further includes a fourth transmission gear, a fifth transmission gear and a worm, the fifth transmission gear is fixedly connected to the worm, the worm is rotatably connected to the sealed housing, the transmission pipe is fixedly connected to the fourth transmission gear, the worm gear is in transmission connection with the worm, and the fourth transmission gear and the fifth transmission gear are in transmission connection.

[0010] As a further solution of the present invention, a curve guide rail is provided on the surface of the transmission pipe. The automatic feeding assembly further includes a ball head rod, a push block, a push rod and a C-shaped frame. The push rod is fixedly connected between the push block and the C-shaped frame. One end of the ball head rod is fixedly connected to the C-shaped frame, and the other end of the ball head rod is slidably connected to the curve guide rail. The C-shaped frame is slidably connected to the fixed frame. The push block and the push rod are located inside the transmission pipe.

[0011] As a further solution of the present invention, the housing mechanism further includes a liquid inlet, a liquid outlet and a material guide frame. The liquid inlet and the liquid outlet are provided on the surface of the sealed housing. The material guide frame is fixedly connected to the sealed housing. The liquid outlet is located directly below the sealed housing. The liquid inlets are distributed between the feed inlet and the liquid outlet. The discharge outlet corresponds to the position of the material guide frame. The discharge outlet is distributed on the clockwise side of the liquid outlet. The angle between the axis of the discharge outlet and the axis of the liquid outlet is 45 degrees or 60 degrees.

[0012] As a further solution of the present invention, a cleaning part is further included. The cleaning part includes a liquid pump and a spray valve. The liquid pump is fixedly connected to the feed frame. The liquid pump and the spray valve are fixedly connected. The spray valve is fixedly connected at the liquid inlet.

[0013] As a further solution of the present invention, a first through hole and a second through hole are respectively provided on the side wall of the rotating sleeve and one end close to the first tooth rail.

[0014] As a further solution of the present invention, the diameter of the annular housing is smaller than the inner diameter of the sealed housing, and the length of the filter cartridge is smaller than the depth of the rotating sleeve.

[0015] As a further solution of the present invention, the material of the grinding protrusion is a grinding wheel or a grinding wheel, and the material of the flexible grinding roller is sponge sand.

[0016] The beneficial effects of the present invention are as follows: In the process of controlling the rotation of the annular housing by the driving part, on the one hand, the filter cartridge can be automatically loaded between the rotating sleeve and the flexible grinding roller by driving the semi-circular pipe to rotate. On the other hand, the grinding protrusion and the flexible grinding roller can be driven to synchronously grind and deburr the outer and inner sides of the filter cartridge by the second transmission gear and the third transmission gear being respectively in transmission connection with the first tooth rail and the second tooth rail. Moreover, the ground filter cartridge can be driven to automatically unload from the discharge outlet, having the characteristics of automatic loading and unloading and synchronous grinding of the inner and outer sides of the filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of the present invention.

[0018] Figure 2 is an exploded view of the present invention.

[0019] Figure 3 is a plane cross-sectional view of the housing mechanism of the embodiment of the present invention.

[0020] Figure 4 This is a perspective view of the cyclic rotation mechanism of the embodiment of the present invention.

[0021] Figure 5 This is a perspective view of the first trimming component of the embodiment of the present invention.

[0022] Figure 6 This is a perspective view of the second trimming component of the embodiment of the present invention.

[0023] Figure 7 This is an assembly schematic diagram of the rotating sleeve, filter cartridge and flexible grinding roller of the embodiment of the present invention.

[0024] Figure 8 This is a sectional view of the rotating sleeve, filter cartridge and flexible grinding roller of the embodiment of the present invention.

[0025] Figure 9 This is a perspective view of the automatic feeding component of the embodiment of the present invention.

[0026] Figure 10 This is an assembly drawing of the cyclic rotation mechanism, first trimming component, second trimming component and automatic feeding component of the embodiment of the invention.

[0027] Figure 11 This is a plane sectional view of the present invention.

[0028] Figure 12 For the present invention Figure 11 A partial enlarged view at position a.

[0029] Reference numerals: 1 - housing mechanism, 11 - sealing housing, 111 - feed inlet, 112 - liquid inlet, 113 - liquid discharge port, 114 - discharge port, 12 - feed rack, 13 - fixing rack, 14 - first toothed rail, 15 - second toothed rail, 16 - material guiding rack, 2 - cyclic rotation mechanism, 21 - driving part, 22 - annular housing, 23 - central shaft, 24 - first transmission gear, 25 - worm gear, 26 - mounting hole, 3 - first trimming component, 31 - rotating sleeve, 32 - second transmission gear, 33 - grinding protrusion, 34 - first through hole, 35 - second through hole, 4 - second trimming component, 41 - rotating shaft, 42 - third transmission gear, 43 - flexible grinding roller, 5 - automatic feeding component, 51 - transmission pipe, 511 - curved guide rail, 52 - semi-circular pipe, 53 - fourth transmission gear, 54 - fifth transmission gear, 55 - worm, 56 - ball head rod, 57 - push block, 58 - push rod, 59 - C-shaped frame, 6 - cleaning part, 61 - liquid pump, 62 - spray valve, 7 - control panel, 8 - filter cartridge. Detailed implementation manners

[0030] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] The following describes in detail the specific implementation of the present invention with reference to specific embodiments.

[0032] Please refer to Figures 1 to 12 , in an embodiment of the present invention, a trimming device for injection molding a filter cartridge includes a housing mechanism 1 and a control panel 7. The housing mechanism 1 includes a sealing shell 11, a feed inlet 111, a discharge outlet 114, a feed rack 12, a fixing rack 13, a first tooth track 14 and a second tooth track 15. The feed inlet 111 and the discharge outlet 114 are respectively arranged above and obliquely below the sealing shell 11. The feed rack 12 and the fixing rack 13 are both fixedly connected to the upper part of the sealing shell 11. The inner wall of the sealing shell 11 is provided with the first tooth track 14 and the second tooth track 15. The control panel 7 is fixedly connected to the side wall of the sealing shell 11. It further includes: A cyclic rotation mechanism 2, which includes a driving part 21, an annular housing 22 and a central shaft 23. The annular housing 22 and the central shaft 23 are fixedly connected. The annular housing 22 is located inside the sealing shell 11. The central shaft 23 is rotatably connected to the sealing shell 11. The driving part 21 is fixedly connected to the sealing shell 11. The driving part 21 is in transmission connection with the central shaft 23; A first trimming assembly 3, which includes a rotating sleeve 31, a second transmission gear 32 and a grinding protrusion 33. The second transmission gear 32 is fixedly connected to the rotating sleeve 31. The inner wall of the rotating sleeve 31 is provided with the grinding protrusion 33. A plurality of the rotating sleeves 31 are all rotatably connected to the annular housing 22. The first tooth track 14 is in transmission connection with the second transmission gear 32; A second trimming assembly 4, which includes a rotating shaft 41, a third transmission gear 42 and a flexible grinding roller 43. The third transmission gear 42 and the flexible grinding roller 43 are both fixedly connected to the rotating shaft 41. The rotating shaft 41 is rotatably connected to one end of the rotating sleeve 31 close to the first tooth track 14. The second tooth track 15 is in transmission connection with the third transmission gear 42. A filter cartridge 8 is placed between the grinding protrusion 33 and the flexible grinding roller 43. The grinding protrusion 33 and the flexible grinding roller 43 are respectively in sliding contact with the outer wall and the inner wall of the filter cartridge 8; The automatic feeding assembly 5, the automatic feeding assembly 5 includes a transmission pipe 51 and a semi-circular pipe 52, the transmission pipe 51 is rotatably connected to the fixed frame 13, the semi-circular pipe 52 is fixedly connected to the transmission pipe 51, the central shaft 23 is in transmission connection with the transmission pipe 51, the semi-circular pipe 52 is located directly above the feeding port 111, the feeding frame 12 is located on one side of the semi-circular pipe 52, and the feeding frame 12 is inclined towards the semi-circular pipe 52.

[0033] Please refer to Figure 4 and Figure 10 , further, the circulating rotation mechanism 2 further includes a first transmission gear 24, a worm gear 25 and a mounting hole 26. The first transmission gear 24 and the worm gear 25 are both fixedly connected to the central shaft 23. The driving part 21 is in transmission connection with the first transmission gear 24. The surface of the annular housing 22 is provided with a mounting hole 26, and the rotating sleeve 31 is rotatably connected in the mounting hole 26.

[0034] Please refer to Figure 9 and Figure 10 , further, the automatic feeding assembly 5 further includes a fourth transmission gear 53, a fifth transmission gear 54 and a worm 55. The fifth transmission gear 54 is fixedly connected to the worm 55. The worm 55 is rotatably connected to the sealing shell 11. The transmission pipe 51 is fixedly connected to the fourth transmission gear 53. The worm gear 25 is in transmission connection with the worm 55. The fourth transmission gear 53 and the fifth transmission gear 54 are in transmission connection.

[0035] In the embodiment of the present invention, the diameter of the annular housing 22 is smaller than the inner diameter of the sealing shell 11, the length of the filter cartridge 8 is smaller than the depth of the rotating sleeve 31. The material of the grinding protrusion 33 is a grinding wheel or a grinding wheel. The abrasive and binder of the grinding wheel or the grinding wheel are silicon carbide and rubber respectively. The material of the flexible grinding roller 43 is sponge sand.

[0036] Please refer to Figure 3 and Figure 12 , in an embodiment of the present invention, the cross-section of the sealing shell 11 is circular. The first tooth rail 14 and the second tooth rail 15 are respectively located on the inner walls of both sides of the sealing shell 11. When the annular housing 22 rotates, the rotating directions of the rotating sleeve 31 and the flexible grinding roller 43 are opposite. Figure 12 The second tooth rail 15 in

[0037] is a projection diagram projected on the plane where the first tooth rail 14 is located. In the embodiment of the present invention, the second transmission gear 32 and the third transmission gear 42 are respectively in transmission connection with the first tooth rail 14 and the second tooth rail 15 to achieve the purpose of driving the rotating sleeve 31 and the flexible grinding roller 43 to rotate in opposite directions, so as to prevent the filter cartridge 8 from rotating synchronously with the rotating sleeve 31 or the flexible grinding roller 43, thereby achieving the purpose of uniformly contacting the grinding protrusion 33 and the flexible grinding roller 43 with the filter cartridge 8 and improving the grinding effect.

[0038] Please refer to Figure 9 and Figure 10 In one embodiment of the present invention, a curve guide rail 511 is provided on the surface of the transmission pipe 51. The automatic feeding assembly 5 further includes a ball head rod 56, a push block 57, a push rod 58 and a C-shaped frame 59. The push rod 58 is fixedly connected between the push block 57 and the C-shaped frame 59. One end of the ball head rod 56 is fixedly connected to the C-shaped frame 59, and the other end of the ball head rod 56 is slidably connected to the curve guide rail 511. The C-shaped frame 59 is slidably connected to the fixed frame 13. The push block 57 and the push rod 58 are located inside the transmission pipe 51.

[0039] In an embodiment of the present invention, when the driving part 21 and the first transmission gear 24 are used to control the annular housing 22 to rotate 45 degrees or 60 degrees at a certain frequency around the central axis 23, the rotating central axis 23 drives the transmission pipe 51 and the semi-circular pipe 52 to rotate 180 degrees through the worm gear 25, the worm 55, the fifth transmission gear 54 and the fourth transmission gear 53. The transmission pipe 51 rotating 180 degrees drives the C-shaped frame 59, the push rod 58 and the push block 57 to perform a reciprocating linear motion once by means of the sliding connection between the curve guide rail 511 and the ball head rod 56.

[0040] Please refer to Figure 1 and Figure 11 In one embodiment of the present invention, the housing mechanism 1 further includes a liquid inlet 112, a liquid outlet 113 and a material guiding frame 16. The liquid inlet 112 and the liquid outlet 113 are provided on the surface of the sealing shell 11. The material guiding frame 16 is fixedly connected to the sealing shell 11. The liquid outlet 113 is located directly below the sealing shell 11.

[0041] Please refer to Figure 4 Furthermore, it further includes a cleaning part 6. The cleaning part 6 includes a liquid pump 61 and a spray valve 62. The liquid pump 61 is fixedly connected to the feeding frame 12. The liquid pump 61 and the spray valve 62 are fixedly connected. The spray valve 62 is fixedly connected at the liquid inlet 112.

[0042] Please refer to Figure 5 Furthermore, a first through hole 34 and a second through hole 35 are respectively provided on the side wall of the rotating sleeve 31 and one end close to the first tooth rail 14.

[0043] In an embodiment of the present invention, the liquid inlets 112 are distributed between the feeding port 111 and the liquid outlet 113. The discharging port 114 corresponds to the position of the material guiding frame 16. The discharging port 114 is distributed on the clockwise side of the liquid outlet 113. The included angle between the axis of the discharging port 114 and the axis of the liquid outlet 113 is 45 degrees or 60 degrees.

[0044] Working principle: The driving part 21 and the first transmission gear 24 are used to control the annular housing 22 to rotate 45 degrees or 60 degrees around the central axis 23 at a certain frequency. The rotating central axis 23 drives the transmission pipe 51 and the semi-circular pipe 52 to rotate 180 degrees through the worm gear 25, the worm 55, the fifth transmission gear 54 and the fourth transmission gear 53. When the opening of the semi-circular pipe 52 is aligned with the feeding rack 12, the filter cartridge 8 automatically slides into the semi-circular pipe 52 along the inclined feeding rack 12. The transmission pipe 51 rotating 180 degrees drives the C-shaped frame 59, the push rod 58 and the push block 57 to perform a reciprocating linear motion by means of the sliding connection between the curved guide rail 511 and the ball head rod 56. The reciprocating linear motion of the push block 57 is used to quickly push the filter cartridge 8 between the grinding protrusion 33 and the flexible grinding roller 43 and then reset. On the one hand, it can prevent the problem of material jamming while automatically feeding, and on the other hand, it can enable the grinding protrusion 33 and the flexible grinding roller 43 to grind the inner and outer sides of the filter cartridge 8 along the axis of the rotating sleeve 31; When the driving part 21 and the first transmission gear 24 are used to continue to control the rotation of the annular housing 22, the second transmission gear 32 and the third transmission gear 42 are respectively connected to the first tooth rail 14 and the second tooth rail 15 in a transmission connection manner to achieve the purpose of driving the rotating sleeve 31 and the flexible grinding roller 43 to rotate in the reverse direction. The grinding protrusion 33 and the flexible grinding roller 43 rotating in the reverse direction can, on the one hand, grind and remove burrs from the outer and inner sides of the filter cartridge 8 simultaneously to achieve a smooth purpose, and on the other hand, can achieve the purpose of uniform contact between the grinding protrusion 33 and the flexible grinding roller 43 and the filter cartridge 8 and improve the grinding effect by preventing the filter cartridge 8 from rotating synchronously with the rotating sleeve 31 or the flexible grinding roller 43; When the rotating sleeve 31 moves to the position of the liquid inlet 112, the liquid pump 61 sprays the cleaning liquid into the rotating sleeve 31 through the spray valve 62. When the rotating sleeve 31 rotates between the feeding port 111 and the discharging port 114, on the one hand, the filter cartridge 8 first slides towards the position close to the center of the sealing shell 11 and then slides towards the position away from the center of the sealing shell 11, so that the grinding protrusion 33 and the flexible grinding roller 43 can grind the filter cartridge 8 simultaneously from the circumferential and axial directions, thereby improving the grinding and deburring effects. On the other hand, the cleaning liquid can wash away the waste chips generated by grinding and cool the filter cartridge 8 during the axial flow along the filter cartridge 8. The waste liquid after cleaning enters the drain port 113 through the first through hole 34 and the second through hole 35. The ground filter cartridge 8 is discharged from the discharging port 114 to the guiding rack 16, realizing the functions of automatic loading and unloading, high-efficiency grinding of the inner and outer sides of the filter cartridge 8, and automatic cleaning and waste discharge.

[0045] In summary, during the process of controlling the rotation of the annular housing 22 by the driving unit 21 in the present application, on the one hand, the filter cartridge 8 can be automatically loaded between the rotating sleeve 31 and the flexible grinding roller 43 by driving the semi-circular tube 52 to rotate. On the other hand, the driving protrusions 33 and the flexible grinding roller 43 can be driven to synchronously grind and deburr the outer and inner sides of the filter cartridge 8 by the second transmission gear 32 and the third transmission gear 42 being respectively in transmission connection with the first tooth rail 14 and the second tooth rail 15. Moreover, the ground filter cartridge 8 can be automatically unloaded from the discharge port 114. It has the characteristics of automatic loading and unloading and synchronous grinding of the inner and outer sides of the filter cartridge 8.

[0046] For those skilled in the art, although several embodiments and examples of the present invention have been described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the gist of the invention.

[0047] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A trimming device for an injection-molded filter cartridge, comprising a housing mechanism (1) and a control panel (7), characterized in that, The housing mechanism (1) includes a sealed housing (11), a feed inlet (111), a discharge outlet (114), a feed rack (12), a fixed rack (13), a first toothed rail (14) and a second toothed rail (15). The feed inlet (111) and the discharge outlet (114) are respectively arranged directly above and obliquely below the sealed housing (11). The feed rack (12) and the fixed rack (13) are both fixedly connected to the upper part of the sealed housing (11). The inner wall of the sealed housing (11) is provided with the first toothed rail (14) and the second toothed rail (15). The control panel (7) is fixedly connected to the side wall of the sealed housing (11). Further included are: A cyclic rotation mechanism (2), which includes a driving part (21), an annular housing (22) and a central shaft (23). The annular housing (22) and the central shaft (23) are fixedly connected. The annular housing (22) is located inside the sealed housing (11). The central shaft (23) is rotationally connected to the sealed housing (11). The driving part (21) is fixedly connected to the sealed housing (11), and the driving part (21) is in transmission connection with the central shaft (23); A first trimming assembly (3), which includes a rotating sleeve (31), a second transmission gear (32) and a grinding protrusion (33). The second transmission gear (32) is fixedly connected to the rotating sleeve (31). The inner wall of the rotating sleeve (31) is provided with the grinding protrusion (33). A plurality of the rotating sleeves (31) are all rotationally connected to the annular housing (22). The first toothed rail (14) is in transmission connection with the second transmission gear (32); A second trimming assembly (4), which includes a rotating shaft (41), a third transmission gear (42) and a flexible grinding roller (43). The third transmission gear (42) and the flexible grinding roller (43) are both fixedly connected to the rotating shaft (41). The rotating shaft (41) is rotationally connected to one end of the rotating sleeve (31) close to the first toothed rail (14). The second toothed rail (15) is in transmission connection with the third transmission gear (42). A filter cartridge (8) is placed between the grinding protrusion (33) and the flexible grinding roller (43). The grinding protrusion (33) and the flexible grinding roller (43) are respectively in sliding contact with the outer wall and the inner wall of the filter cartridge (8); An automatic feeding assembly (5), which includes a transmission pipe (51) and a semi-circular pipe (52). The transmission pipe (51) is rotationally connected to the fixed rack (13). The semi-circular pipe (52) is fixedly connected to the transmission pipe (51). The central shaft (23) is in transmission connection with the transmission pipe (51). The semi-circular pipe (52) is located directly above the feed inlet (111). The feed rack (12) is located on one side of the semi-circular pipe (52), and the feed rack (12) is inclined towards the semi-circular pipe (52).

2. The trimming device for injection molding filter cartridges according to claim 1, wherein The cross-section of the sealing shell (11) is circular. The first toothed rail (14) and the second toothed rail (15) are respectively located on the inner walls on both sides of the sealing shell (11). When the annular shell (22) rotates, the rotating sleeve (31) and the flexible grinding roller (43) rotate in opposite directions to prevent the filter cartridge (8) from rotating synchronously with the rotating sleeve (31) or the flexible grinding roller (43).

3. The trimming device for injection molding filter cartridges according to claim 2, characterized in that, The circulating rotation mechanism (2) further includes a first transmission gear (24), a worm gear (25) and a mounting hole (26). Both the first transmission gear (24) and the worm gear (25) are fixedly connected to the central shaft (23). The driving part (21) is in transmission connection with the first transmission gear (24). The surface of the annular shell (22) is provided with a mounting hole (26), and the rotating sleeve (31) is rotatably connected in the mounting hole (26).

4. A trimming device for an injection-molded filter cartridge according to claim 3, characterized in that, The automatic feeding assembly (5) further includes a fourth transmission gear (53), a fifth transmission gear (54) and a worm (55). The fifth transmission gear (54) is fixedly connected to the worm (55). The worm (55) is rotatably connected to the sealing shell (11). The transmission pipe (51) is fixedly connected to the fourth transmission gear (53). The worm gear (25) is in transmission connection with the worm (55). The fourth transmission gear (53) and the fifth transmission gear (54) are in transmission connection with each other.

5. A trimming device for an injection-molded filter cartridge according to claim 4, characterized in that, The surface of the transmission pipe (51) is provided with a curved guide rail (511). The automatic feeding assembly (5) further includes a ball head rod (56), a push block (57), a push rod (58) and a U-shaped frame (59). The push rod (58) is fixedly connected between the push block (57) and the U-shaped frame (59). One end of the ball head rod (56) is fixedly connected to the U-shaped frame (59), and the other end of the ball head rod (56) is slidably connected to the curved guide rail (511). The U-shaped frame (59) is slidably connected to the fixed frame (13). The push block (57) and the push rod (58) are located inside the transmission pipe (51).

6. The trimming device for injection molding filter cartridges according to claim 1, characterized in that, The housing mechanism (1) further includes a liquid inlet (112), a liquid outlet (113) and a material guiding frame (16). The surface of the sealing shell (11) is provided with a liquid inlet (112) and a liquid outlet (113). The material guiding frame (16) is fixedly connected to the sealing shell (11). The liquid outlet (113) is located directly below the sealing shell (11). The liquid inlets (112) are distributed between the feeding port (111) and the liquid outlet (113). The discharging port (114) corresponds to the position of the material guiding frame (16). The discharging ports (114) are distributed on the clockwise side of the liquid outlet (113). The angle between the axis of the discharging port (114) and the axis of the liquid outlet (113) is 45 degrees or 60 degrees.

7. An apparatus for trimming an injection-molded filter cartridge according to claim 6, characterized in that, It further includes a cleaning part (6). The cleaning part (6) includes a liquid pump (61) and a spray valve (62). The liquid pump (61) is fixedly connected to the feeding frame (12). The liquid pump (61) and the spray valve (62) are fixedly connected. The spray valve (62) is fixedly connected at the liquid inlet (112).

8. A trimming device for injection molding filter cartridges according to claim 7, characterized in that, A first through hole (34) and a second through hole (35) are respectively arranged on the side wall of the rotating sleeve (31) and one end close to the first toothed rail (14).

9. The trimming device for an injection-molded filter cartridge according to claim 1, wherein, The diameter of the annular housing (22) is smaller than the inner diameter of the sealing shell (11), and the length of the filter cartridge (8) is smaller than the depth of the rotating sleeve (31).

10. A trimming device for an injection-molded filter cartridge according to claim 1, characterized in that, The material of the grinding protrusion (33) is a grinding wheel or a grinding wheel, and the material of the flexible grinding roller (43) is sponge sand.

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