Automobile hub protective film extrusion device

Abstract

The utility model relates to the technical field of automobile maintenance, and discloses an automobile hub protective film extrusion device which comprises a feeding port assembly, the bottom of the feeding port assembly is connected with an extrusion assembly, the bottom of the extrusion assembly is connected with a motor assembly, and the top of the extrusion assembly is connected with a filter screen assembly. The top of the filter screen assembly is connected with a die head assembly; raw materials are processed, enter from the feeding port, are powered by the motor, are rotationally propelled by the screw rod, are molten into a viscous flow state at high temperature, are compacted and propelled under the resistance of the filter screen, the splitter plate and the machine head, and are extruded into the die head and the feeding port assembly by the screw rod, so that the plastic input quantity can be conveniently adjusted; and two raw materials can be mixed and enter at the same time, under the condition of internal and external joint heating, plastic melting can be faster carried out in the extrusion assembly, heat loss is reduced, meanwhile, a filter screen assembly can facilitate replacement of a filter screen, and the use condition of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile maintenance, and more specifically to an automobile wheel hub protective film extrusion device. Background Art

[0002] The automobile wheel hub protective film extrusion device mainly includes a feed port, a motor, an extrusion tube, a filter screen, a die head, etc. The protective film extrusion device is mainly used to process raw materials, which enter from the feed port, are pushed forward by the rotation of the screw, and are compacted and pushed forward under the resistance of the filter screen, the diverter plate and the die head. At high temperature, the raw materials melt into a viscous flow state and are squeezed into the die head by the screw.

[0003] First, the automobile wheel hub protective film extrusion device processes the plastic. A large amount of raw materials enter from the feed port and enter the extrusion tube along the pipeline. Under the operation of the motor, the gear rotation drives the screw to rotate, so that the screw pushes the plastic forward. There is a heating device on the outer wall to heat and melt the plastic. Under the push of the screw, the viscous plastic is extruded by the filter and the diverter plate. The filter is close to the diverter plate, which is easy to cause extrusion deformation of the filter under high pressure, or insoluble substances may also cause the filter to be blocked.

[0004] Secondly, if too much raw material is added to the feed port at one time, they will pile up together and cannot be stopped at will. Moreover, the speed ratio of the mixed materials is difficult to control. Then, the heating efficiency of only the outer wall is low, and there are more stringent requirements on the heating thickness. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an automobile wheel hub protective film extrusion device to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solution: an automobile wheel hub protective film extrusion device, comprising a feed port assembly, characterized in that: the bottom of the feed port assembly is connected to an extrusion assembly, the bottom of the extrusion assembly is connected to an engine assembly, the top of the extrusion assembly is connected to a filter assembly, the top of the filter assembly is fixedly connected to a die head assembly, the feed port assembly comprises a funnel, the interior of the funnel is fixedly connected to a partition plate, the bottom of the funnel is fixedly connected to a feed pipe, the middle of the feed pipe is fixedly connected to a separation plate, the other side of the top of the separation plate is fixedly connected to an isolation frame, the other side of the top of the isolation frame is provided with a first sliding groove, the other side of the top of the separation plate is provided with a second sliding groove, the middle of the separation plate is movably connected to a separation sheet, and the other side of the top of the separation sheet is fixedly connected to a push-pull handle.

[0007] Furthermore, the extrusion assembly includes an outer pipe, a heating ring is fixedly sleeved on the inner side of the outer pipe, an inner pipe is fixedly sleeved on the inner side of the heating ring, a conical cap is fixedly connected to the top of the inner pipe, a screw is movably connected to the bottom of the inner pipe, a heat-conducting rod is fixedly sleeved on the inner side of the screw, and a heating rod is fixedly connected around the inner side of the heat-conducting rod.

[0008] Furthermore, the motor assembly includes an outer frame, a connecting ring is fixedly sleeved on the inner side of the outer frame, a screw is fixedly connected to one side of the connecting ring, a first connecting rod is fixedly connected to the other side of the connecting ring, a fixed clamp is fixedly connected to one side of the first connecting rod, a first gear is fixedly connected to the other side of the first connecting rod, the first gear and the second gear are meshed with each other, a second connecting rod is fixedly connected to the other side of the second gear, a first bevel gear is fixedly connected to the other side of the second connecting rod, the first bevel gear and the second bevel gear are meshed with each other, a third connecting rod is fixedly connected to the top of the second bevel gear, a servo motor is fixedly connected to the top of the third connecting rod, a fixed ring is movably sleeved on the other side of the first bevel gear, a first large ring is movably sleeved on the other side of the first gear, a second large ring is movably sleeved on the other side of the first large ring, and a small ring is movably sleeved on the other side of the second large ring.

[0009] Furthermore, the filter assembly includes an outer shell, one side of the outer shell is movably connected with a connecting nut, second push-pull grooves are provided on both sides of the top of the outer shell, the inner side of the outer shell is movably sleeved with a diverter plate, the inner side of the outer shell is movably sleeved with a filter mesh, the middle part of the outer shell is movably connected to a filter replacement plate, first push-pull grooves are provided on both sides of the filter replacement plate, the top of the first push-pull groove is fixedly connected with a first positioning block, the bottom of the filter replacement plate is fixedly connected with second positioning blocks, the top of the filter replacement plate is fixedly connected with a handle, large holes are provided on the top and bottom of the filter replacement plate, and a fine steel wire is fixedly connected to the inner side of the large hole.

[0010] Furthermore, the die head assembly includes a die head frame, a pull ring is movably connected to the top of the die head frame, a long adjusting screw is movably connected to the top front end of the die head frame, a first screw hole is opened in the upper outer portion of the die head frame, a die lip is opened in the middle outer portion of the die head frame, and a second screw hole is opened in the lower outer portion of the die head frame.

[0011] Furthermore, the side dimension of the push-pull handle and the cross-sectional dimension of the first sliding groove and the cross-sectional dimension of the second sliding groove match each other.

[0012] Furthermore, a diverter plate is provided on one side of the filter screen, the side dimensions of the filter screen and the diverter plate match the inner cross-sectional dimensions of the shell, and the cross-sectional dimensions of the large hole are the same as the cross-sectional dimensions of the shell.

[0013] Furthermore, the cross-sectional dimensions of the opening of the first push-pull groove of the filter replacement plate match the cross-sectional dimensions of the first positioning block, and the cross-sectional dimensions of the opening of the second push-pull groove of the outer shell match the cross-sectional dimensions of the first positioning block; when the top of the second positioning block contacts the outer shell, the inner dimensions of the outer shell, the outer dimensions of the filter mesh, and the diameter dimensions of the large holes fit together; when the bottom of the first positioning block contacts the bottom of the second push-pull groove, the inner dimensions of the outer shell, the outer dimensions of the filter mesh, and the diameter dimensions of the large holes fit together.

[0014] Technical effects and advantages of the utility model:

[0015] 1. When adding raw materials through the feed port assembly, the utility model adjusts the rate at which the raw materials fall in the feed pipe through the push-pull handle fixedly connected to the separation plate and closes the separation plate at any time to stop the input of raw materials from the feed pipe port. This is beneficial to the input amount of raw materials and the input of raw materials can be stopped at any time in case of unexpected situations, ensuring the controllability of the processing. At the same time, the separation plate is blocked to allow the two raw materials to be mixed and input, and the mixing ratio of the two raw materials can be controlled to a certain extent.

[0016] 2. When the utility model heats the plastic through the extrusion assembly, a heat-conducting rod is fixedly sleeved inside the screw, and the heating rods surrounding the heat-conducting rod heat the heating ring outside the inner pipe synchronously, which not only improves the heating rate, but also can heat a thicker plastic layer and increases the output of plastic per unit cross-sectional area. In addition, the inner side of the outer pipe is made of heat-insulating material, which is beneficial to reduce the diffusion of external heat and comprehensively improve the rate of plastic conversion.

[0017] 3. The utility model can quickly replace the filter through the filter assembly when the filter is squeezed and deformed or blocked and has not been replaced for a long time. When the filter needs to be replaced, the new filter to be replaced is placed on the thin steel wire, and the filter replacement plate can be pulled out by loosening the connecting nut. The worker grabs the handle and operates quickly. The filter replacement plate moves quickly along the push-pull groove and reaches the correct position under the action of the positioning block, and then tightens the nut to complete the replacement of the filter, which is conducive to convenient and quick replacement of the filter and does not require the extruder to stop working, saving time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the feeding component of the utility model.

[0020] Figure 3 It is a schematic diagram of the planed surface structure of the feed port assembly of the utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the motor assembly of the utility model.

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the extrusion component of the utility model.

[0023] Figure 6 This is a schematic diagram of the structure of the filter assembly of the utility model.

[0024] Figure 7 It is a schematic diagram of the structure of the filter screen diversion plate of the utility model.

[0025] Figure 8 It is a schematic diagram of the planed structure of the filter screen assembly of the utility model.

[0026] Fig. 9 It is a schematic diagram of the planed structure of the filter screen assembly of the utility model.

[0027] Fig.10 This is a schematic diagram of the die head assembly structure of the utility model.

[0028] Fig.11 This is a schematic diagram of the structure of the extrusion assembly of the utility model.

[0029] The accompanying drawings are marked as follows: 1. extrusion assembly; 101. inner pipe; 102. heating coil; 103. outer pipe; 104. screw; 105. conical cap; 106. heat-conducting rod; 107. heating thin rod; 2. feed port assembly; 201. funnel; 202. feed pipe; 203. separation plate; 204. separation sheet; 205. isolation frame; 206. push-pull handle; 207. partition plate; 208. second sliding groove; 209. first sliding groove; 3. motor assembly; 301. outer frame; 302. connecting ring; 303. first connecting rod; 304. fixing splint; 305. first large ring; 306. first gear; 307. second large ring; 308. small ring; 309. second connecting Rod; 3010, second gear; 3011, first bevel gear; 3012, second bevel gear; 3013, fixing ring; 3014, third connecting rod; 3015, servo motor; 4, filter assembly; 401, filter replacement plate; 402, first push-pull groove; 403, first positioning block; 404, second positioning block; 405, handle; 406, shell; 407, connecting nut; 408, filter mesh; 409, diverter plate; 4010, fine steel wire; 4011, large hole; 4012, second push-pull groove; 5, die assembly; 501, die frame; 502, pull ring; 503, first screw hole; 504, die lip; 505, second screw hole; 506, long adjustment screw. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The protective film extrusion device involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0031] Reference Figure 1-11The utility model provides an automobile wheel hub protective film extrusion device, including a feed port assembly 2, the bottom of the feed port assembly 2 is connected to an extrusion assembly 1, the bottom of the extrusion assembly 1 is connected to a motor assembly 3, the top of the extrusion assembly 1 is connected to a filter assembly 4, the top of the filter assembly 4 is fixedly connected to a die head assembly 5, the feed port assembly 2 includes a funnel 201, the interior of the funnel 201 is fixedly connected to a partition plate 207, the bottom of the funnel 201 is fixedly connected to a feed pipe 202, the middle of the feed pipe 202 is fixedly connected to a separation plate 203, the top of the separation plate 203 The other side of the part is fixedly connected with an isolation frame 205, the other side of the top of the isolation frame 205 is provided with a first sliding groove 209, the other side of the top of the separation plate 203 is provided with a second sliding groove 208, the middle of the separation plate 203 is movably connected with the separation sheet 204, the other side of the top of the separation sheet 204 is fixedly connected with a push-pull handle 206, and when adding raw materials, the feed port assembly 2 adjusts the rate of the raw materials falling in the feed pipe 202 through the push-pull handle 206 fixedly connected to the other side of the top of the separation sheet 204 and closes the separation sheet 204 at any time to stop the input of raw materials into the feed pipe 202. The input amount of raw materials is guaranteed and the input of raw materials can be stopped at any time in case of unexpected situations, which ensures the controllability of processing. At the same time, the partition plate 207 allows the two raw materials to be mixed and input, and also controls the mixing and adding ratio of the two raw materials to a certain extent.

[0032] In a preferred embodiment, the extrusion assembly 1 includes an outer pipe 103, a heating ring 102 is fixedly sleeved on the inner side of the outer pipe 103, an inner pipe 101 is fixedly sleeved on the inner side of the heating ring 102, a conical cap 105 is fixedly connected to the top of the inner pipe 101, a screw 104 is movably connected to the bottom of the inner pipe 101, a heat-conducting rod 106 is fixedly sleeved on the inner side of the screw 104, and a heating thin rod 107 is fixedly connected around the inner side of the heat-conducting rod 106. When the extrusion assembly 1 heats the plastic, the heat-conducting rod 106 is fixedly sleeved on the inner side of the screw 104, and the heating thin rod 107 surrounding the inner side of the heat-conducting rod 106 is heated synchronously with the outer heating ring 102 of the inner pipe 101, which not only improves the heating rate, can heat a thicker plastic layer, but also improves the yield of plastic per unit cross-sectional area, and the inner side of the outer pipe 103 is made of heat-insulating material, which well reduces the diffusion of external heat and improves the rate of plastic conversion in all aspects.

[0033] In a preferred embodiment, the motor assembly 3 includes an outer frame 301, a connecting ring 302 is fixedly sleeved on the inner side of the outer frame 301, a screw 104 is fixedly connected to one side of the connecting ring 302, a first connecting rod 303 is fixedly connected to the other side of the connecting ring 302, a fixed clamping plate 304 is fixedly connected to one side of the first connecting rod 303, a first gear 306 is fixedly connected to the other side of the first connecting rod 303, the first gear 306 and the second gear 3010 are meshed with each other, and a second connecting rod 309 is fixedly connected to the other side of the second gear 3010, and the second connecting rod 30 The other side of 9 is fixedly connected with the first bevel gear 3011, the first bevel gear 3011 and the second bevel gear 3012 are meshed with each other, the top of the second bevel gear 3012 is fixedly connected with the third connecting rod 3014, the top of the third connecting rod 3014 is fixedly connected with the servo motor 3015, the other side of the first bevel gear 3011 is movably connected with a fixed ring 3013, the other side of the first gear 306 is movably connected with the first large ring 305, the other side of the first large ring 305 is movably connected with the second large ring 307, and the other side of the second large ring 307 is movably connected with a small ring 308.

[0034] In a preferred embodiment, the filter assembly 4 includes an outer shell 406, one side of the outer shell 406 is movably connected with a connecting nut 407, second push-pull grooves 4012 are provided on both sides of the top of the outer shell 406, the inner side of the outer shell 406 is movably connected to a diverter plate 409, the inner side of the outer shell 406 is movably connected to a filter mesh 408, the middle part of the outer shell 406 is movably connected to a filter replacement plate 401, first push-pull grooves 402 are provided on both sides of the filter replacement plate 401, the top of the first push-pull groove 402 is fixedly connected with a first positioning block 403, the bottom of the filter replacement plate 401 is fixedly connected with a second positioning block 404, the top of the filter replacement plate 401 is fixedly connected with a handle 405, the top and bottom of the filter replacement plate 401 are provided with large holes 4011, and the inner side of the large hole 4011 is fixedly connected with a fine steel wire 4010. When the filter mesh assembly 4 is squeezed and deformed or clogged and has not been replaced for a long time, the filter mesh 408 can be quickly replaced. When the filter mesh 408 needs to be replaced, the new filter mesh 408 to be replaced is placed on the thin steel wire 4010, and the filter replacement plate 401 can be pulled out by loosening the connecting nut 407. The worker grabs the handle 405 and operates it quickly. The filter replacement plate 401 moves quickly along the first push-pull groove 402 and reaches the correct position under the action of the first positioning block 403. Then the connecting nut 407 is tightened to complete the replacement of the filter mesh 408. It is not only convenient and quick to replace the filter mesh 408, but also does not require the extruder to stop working, saving time.

[0035] In a preferred embodiment, the die assembly 5 includes a die frame 501, a pull ring 502 is movably connected to the top of the die frame 501, a long adjusting screw 506 is movably connected to the top front end of the die frame 501, a first screw hole 503 is opened on the upper outer side of the die frame 501, a die lip 504 is opened in the middle outer side of the die frame 501, and a second screw hole 505 is opened on the lower outer side of the die frame 501.

[0036] In a preferred embodiment, the side dimension of the push-pull handle 206 and the cross-sectional dimensions of the first sliding groove 209 and the cross-sectional dimensions of the second sliding groove 208 match each other.

[0037] In a preferred embodiment, a diverter plate 409 is provided on one side of the filter mesh 408, and the side dimensions of the filter mesh 408 and the diverter plate 409 match the inner cross-sectional dimensions of the outer shell 406, and the cross-sectional dimensions of the large hole 4011 are the same as the cross-sectional dimensions of the outer shell 406.

[0038] In a preferred embodiment, the opening cross-sectional size of the first push-pull groove 402 of the filter replacement plate 401 cooperates with the cross-sectional size of the first positioning block 403, and the cross-sectional size of the opening of the second push-pull groove 4012 of the outer shell 406 cooperates with the cross-sectional size of the first positioning block 403. When the top of the second positioning block 404 contacts the outer shell 406, the inner size of the outer shell 406, the outer size of the filter mesh 408, and the diameter size of the large hole 4011 fit together. When the bottom of the first positioning block 403 contacts the bottom of the second push-pull groove 4012, the inner size of the outer shell 406, the outer size of the filter mesh 408, and the diameter size of the large hole 4011 fit together.

[0039] The working principle of the utility model is as follows: before heating the plastic, the heating coil 102 and the heating rod 107 are used to heat the warming machine. After the temperature of the inner pipe 101 reaches the melting temperature of the plastic, the servo motor 3015 is started, and the servo motor 3015 rotates to drive the third connecting rod 3014, thereby driving the second bevel gear 3012 to rotate, and then drives the meshing first bevel gear 3011 to rotate, thereby driving the second connecting rod 309 to rotate, further driving the second gear 3010 to rotate, and then the meshing first gear 306 rotates to drive the first connecting rod 303 to rotate, and the meshing first gear 306 rotates to drive the first connecting rod 303 to rotate, and the meshing first gear 306 rotates to drive the first connecting rod 303 to rotate. The screw 104 is driven to rotate through the connecting ring 302 to move forward, and then the raw materials are added from the feed port assembly 2. The push-pull handle 206 drives the separation sheet 204 to slide and adjust the input amount. The plastic enters the extrusion assembly 1 from the feed pipe 202. The plastic is pushed forward by the rotation of the screw 104 and is heated by the heating ring 102 and the heating thin rod 107. It is converted into a viscous flow state at the top of the screw 104. Under the joint pressure of the screw 104, the filter mesh 408 and the diverter plate 409, the protective film is extruded to the die assembly 5. The protective film is extruded by adjusting the long screw 506 to control the thickness of the protective film. When the filter needs to be replaced, the filter replacement plate 401 can be pulled out by loosening the connecting nut 407. The worker grabs the handle 405 and operates quickly. The first positioning block 403 on the filter replacement plate 401 moves quickly along the first push-pull groove 402. When the first positioning block 403 reaches the bottom position of the second push-pull groove 4012, the connecting nut 407 is tightened to complete the replacement of the filter mesh 408.

[0040] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0041] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0042] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An automobile wheel hub protective film extrusion device, comprising a feed port assembly (2), characterized in that: The bottom of the feed port assembly (2) is connected to an extrusion assembly (1), the bottom of the extrusion assembly (1) is connected to a motor assembly (3), the top of the extrusion assembly (1) is connected to a filter assembly (4), the top of the filter assembly (4) is fixedly connected to a die head assembly (5), the feed port assembly (2) comprises a funnel (201), the interior of the funnel (201) is fixedly connected to a partition plate (207), the bottom of the funnel (201) is fixedly connected to a feed pipe (202), A separation plate (203) is fixedly connected to the middle of the feed pipe (202); an isolation frame (205) is fixedly connected to the other side of the top of the separation plate (203); a first sliding groove (209) is provided at the top of the other side of the isolation frame (205); a second sliding groove (208) is provided at the other side of the top of the separation plate (203); a separation sheet (204) is movably connected to the middle of the separation plate (203); a push-pull handle (206) is fixedly connected to the other side of the top of the separation sheet (204).

2. The automobile wheel hub protective film extrusion device according to claim 1, characterized in that: The extrusion assembly (1) comprises an outer pipe (103), the inner side of the outer pipe (103) is fixedly sleeved with a heating ring (102), the inner side of the heating ring (102) is fixedly sleeved with an inner pipe (101), the top of the inner pipe (101) is fixedly connected with a conical cap (105), the bottom of the inner pipe (101) is movably connected with a screw rod (104), the inner side of the screw rod (104) is fixedly sleeved with a heat conducting rod (106), and the inner side of the heat conducting rod (106) is surrounded and fixedly connected with a heating thin rod (107).

3. The automobile wheel hub protective film extrusion device according to claim 1, characterized in that: The motor assembly (3) comprises an outer frame (301), the inner side of the outer frame (301) is fixedly sleeved with a connecting ring (302), one side of the connecting ring (302) is fixedly connected with a screw rod (104), the other side of the connecting ring (302) is fixedly connected with a first connecting rod (303), one side of the first connecting rod (303) is fixedly connected with a fixing clamp (304), the other side of the first connecting rod (303) is fixedly connected with a first gear (306), the first gear (306) and the second gear (3010) are meshed with each other, the other side of the second gear (3010) is fixedly connected with a second connecting rod (309), the second connecting rod (309) is fixedly connected with a fixing clamp (304) on one side of the first connecting rod (303), the first gear (306) and the second gear (3010) are meshed with each other, the second gear (3010) is fixedly connected with a second connecting rod (309), and the second connecting rod (309) is fixedly connected with a fixing clamp (304) on one side of the first connecting rod (303). The other side is fixedly connected with a first bevel gear (3011), the first bevel gear (3011) and the second bevel gear (3012) are meshed with each other, the top of the second bevel gear (3012) is fixedly connected with a third connecting rod (3014), the top of the third connecting rod (3014) is fixedly connected with a servo motor (3015), the other side of the first bevel gear (3011) is movably sleeved with a fixed collar (3013), the other side of the first gear (306) is movably sleeved with a first large collar (305), the other side of the first large collar (305) is movably sleeved with a second large collar (307), and the other side of the second large collar (307) is movably sleeved with a small collar (308).

4. The automobile wheel hub protective film extrusion device according to claim 1, characterized in that: The filter assembly (4) comprises a shell (406), one side of the shell (406) is movably connected with a connecting nut (407), the top two sides of the shell (406) are provided with second push-pull grooves (4012), the inner side of the shell (406) is movably connected with a diverter plate (409), the inner side of the shell (406) is movably connected with a filter screen (408), the middle part of the shell (406) is movably connected with a filter replacement plate (401), and the two sides of the filter replacement plate (401) are connected to the filter screen replacement plate (401). A first push-pull groove (402) is opened on the side, a first positioning block (403) is fixedly connected to the top of the first push-pull groove (402), second positioning blocks (404) are fixedly connected to both sides of the bottom of the filter replacement plate (401), a handle (405) is fixedly connected to the top of the filter replacement plate (401), large holes (4011) are opened on the top and bottom of the filter replacement plate (401), and a thin steel wire (4010) is fixedly connected to the inner side of the large hole (4011).

5. The automobile wheel hub protective film extrusion device according to claim 1, characterized in that: The die assembly (5) comprises a die frame (501), the top of the die frame (501) is movably connected with a pull ring (502), the top front end of the die frame (501) is movably connected with a long adjusting screw (506), the upper outer portion of the die frame (501) is provided with a first screw hole (503), the middle outer portion of the die frame (501) is provided with a die lip (504), and the lower outer portion of the die frame (501) is provided with a second screw hole (505).

6. The automobile wheel hub protective film extrusion device according to claim 1, characterized in that: The side dimensions of the push-pull handle (206), the cross-sectional dimensions of the first sliding groove (209), and the cross-sectional dimensions of the second sliding groove (208) match each other.

7. The automobile wheel hub protective film extrusion device according to claim 4, characterized in that: A diverter plate (409) is provided on one side of the filter mesh (408); the side dimensions of the filter mesh (408) and the diverter plate (409) match the inner cross-sectional dimensions of the outer shell (406); and the cross-sectional dimensions of the large hole (4011) are the same as the cross-sectional dimensions of the outer shell (406).

8. The automobile wheel hub protective film extrusion device according to claim 4, characterized in that: The cross-sectional dimensions of the opening of the first push-pull groove (402) of the filter replacement plate (401) match the cross-sectional dimensions of the first positioning block (403); the cross-sectional dimensions of the opening of the second push-pull groove (4012) of the shell (406) match the cross-sectional dimensions of the first positioning block (403); when the top of the second positioning block (404) contacts the shell (406), the inner dimensions of the shell (406), the outer dimensions of the filter mesh (408), and the diameter dimensions of the large hole (4011) fit together; when the bottom of the first positioning block (403) contacts the bottom of the second push-pull groove (4012), the inner dimensions of the shell (406), the outer dimensions of the filter mesh (408), and the diameter dimensions of the large hole (4011) fit together.

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