Finishing equipment for injection molding production of automobile exterior trimming parts

Abstract

The invention relates to the technical field of automobile plastic part machining, in particular to finishing equipment for injection molding production of automobile exterior trimming parts. Comprising an operation table, a grinding device and a conveying belt, a fan is arranged on one side of the operation table and communicates with an air supply pipe and an air conveying pipe, the end of the air supply pipe communicates with an air extraction box, the end of the air conveying pipe communicates with an exhaust box, the exhaust box and the air extraction box are oppositely arranged with a rearview mirror shell as the symmetry axis, and the air supply pipe further communicates with a power part. In the downward moving process of the cylinder, the ejection part enables chippings blocked in the card slot to be loosened through knocking, on the contrary, when the cylinder moves downwards, the rearview mirror shell is knocked along with the ejection part, the chippings are prevented from blocking the slot, meanwhile, a negative pressure area is formed in cooperation with an air exhaust box when the chippings are separated from the upper portion of the left side wall of the rearview mirror shell, and the chippings are prevented from blocking the slot. Flying-out chippings are sucked through negative pressure, so that the chippings are guided to the arc-shaped plate, the chippings slide into the baffle along the arc-shaped plate, and the situation that the chippings are scattered all around, and the surrounding environment is affected is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of automobile plastic parts processing, in particular to a finishing device for injection molding production of automobile exterior parts. Background Art

[0002] Automotive plastic parts are one of the important components on a car, such as bumper shells. During the processing of automotive plastic parts, the burrs on the surface need to be polished off by a polishing device to facilitate the use of automotive plastic parts.

[0003] Since the rearview mirror shell is usually arc-shaped, after the injection molding is completed, the rearview mirror shell is conveyed to the processing station by a conveyor belt. When manually grinding and correcting the side of the rearview mirror shell of the car, one hand usually holds the side of the rearview mirror shell, and then the other hand holds the grinding device to grind the side. This operation method increases the burden of the operator, and the rearview mirror shell will also shake during the grinding process. Therefore, the prior art uses a fixing device to clamp and fix the two sides of the rearview mirror shell, thereby reducing the work intensity of the operator.

[0004] However, when the molds are matched, the gap between the molds will cause the plastic to overflow during the injection process, forming burrs. In this case, the rearview mirror housing needs to be turned over later so that its inner wall faces upward, and then the burrs formed on its inner wall and side edges are trimmed and polished. The rearview mirror housing and the rearview mirror are often connected in the form of a buckle. The buckle includes a card and a fixing piece (block), and the card is provided with a slot that is engaged with the block.

[0005] In this way, the generated debris will accumulate on the inner wall of the rearview mirror shell. If grinding is performed in a closed space, the protective cover needs to be opened back and forth, which affects the processing efficiency. If after grinding, the worker uses an air gun to blow air into the rearview mirror shell, the debris will float around and affect the surrounding air. Moreover, if the worker cleans the rearview mirror shell upside down, the debris will slide along the inner wall of the rearview mirror shell, causing the debris to accumulate in the slot of the card, affecting the firmness of the fixation between the rearview mirror shell and the rearview mirror. Summary of the invention

[0006] The object of the present invention is to provide a finishing device for injection molding production of automobile exterior parts to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention aims to provide a finishing equipment for injection molding production of automobile exterior parts, including an operating table, a grinding device and a conveyor belt. A fan is arranged on one side of the operating table, and the fan is connected to an air supply pipe and an air delivery pipe. The end of the air supply pipe is connected to an air extraction box, and the end of the air delivery pipe is connected to an exhaust box. The exhaust box and the air extraction box are relatively arranged with the rearview mirror shell as the symmetry axis, and the air supply pipe is also connected to a power unit. An ejection unit is arranged above the power unit near the rearview mirror shell, and the power unit is driven to rotate by the airflow transported in the air supply pipe, and the power unit is used to move the ejection unit upward and rotate, and the ejection unit knocks the rearview mirror shell to loosen the debris blocked in the card slot, and the exhaust box sprays the fallen debris along the inner wall of the rearview mirror shell, and cooperates with the air extraction box to form a negative pressure area above the side wall of the rearview mirror shell to suppress the flying debris.

[0008] As a further improvement of the present technical solution, a channel is formed inside the vacuum box, the channel is connected to multiple air intake holes, and a one-way valve is provided inside each air intake hole, and the one-way valve is in an open state when the air flow flows in the channel; an arc-shaped plate close to the rearview mirror shell is provided above the vacuum box, the vacuum box is fixedly connected to the arc-shaped plate, and one end of the arc-shaped plate away from the vacuum box is fixedly connected to the operating table; a baffle is provided at the connection between the arc-shaped plate and the operating table, and the baffle is spliced ​​into a box-shaped baffle with the arc-shaped plate and the operating table, and an opening is provided at the top of the baffle to collect debris sliding along the arc-shaped plate.

[0009] As a further improvement of the present technical solution, the air supply pipe is connected with a bronchial tube, and the bronchial tube is connected with a channel inside the vacuum box. A connecting plate is fixedly connected between the air supply pipe, the bronchial tube and the air delivery pipe. A sealing plate is slidably connected inside the connecting plate. A plurality of exhaust holes corresponding to the air supply pipe, the bronchial tube and the air delivery pipe are provided on the sealing plate. Under normal conditions, the air supply pipe is in a conducting state, the air delivery pipe and the bronchial tube are offset from the corresponding exhaust holes on the sealing plate, and the air delivery pipe and the bronchial tube are in a closed state.

[0010] As a further improvement of the present technical solution, the end of the air supply pipe is connected to an auxiliary air pipe, and the auxiliary air pipe is located on the right side of the connection between the bronchial pipe and the air supply pipe in the horizontal direction. The end of the auxiliary air pipe is connected to a high-pressure nozzle, and the high-pressure nozzle is fixedly connected to a shell, and the shell is supported by a support leg. A vent hole is provided at the bottom of the shell, and the shell is rotatably connected to a rotating shaft supported by a support seat, and a blade is coaxially connected to the end of the rotating shaft, and the blade is located inside the shell.

[0011] As a further improvement of the present technical solution, the power unit includes a cam symmetrically arranged on the rotating shaft, the cam is fixedly connected to the rotating shaft, a shift plate is attached to the cam, and clamping plates for limiting the rotation of the shift plate are arranged on both sides of the shift plate. The shift plate is rotatably connected to a cylinder, and a screw rod is threaded inside the cylinder. The bottom of the screw rod is coaxially connected to a vertical rod fixed to the operating table, and the rotation of the cam is utilized to make the shift plate slide and rise along the outer edge of the cam.

[0012] As a further improvement of the technical solution, a main magnet is arranged at the bottom of the cylinder, sliding rods are fixedly connected to the vertical rods on both sides, the sliding rods are slidably connected to the connecting frame, and both ends of the connecting frame are embedded with secondary magnets that magnetically repel the main magnet, and a stop block is arranged on the sliding rod away from the vertical rod, and both ends of the compression spring mounted on the sliding rod respectively abut against the stop block and the end of the connecting frame.

[0013] As a further improvement of the present technical solution, a traction rope is fixedly connected to one side of the connecting frame, and the end of the traction rope away from the connecting frame is fixedly connected to the sealing plate. One end of the return spring sleeved on the end of the traction rope is against the sealing plate, and the other end of the return spring is provided with a shell, which is fixedly connected to the gas pipe.

[0014] As a further improvement of the present technical solution, the ejection part includes a sphere, a tension spring is fixedly connected above the sphere, one end of the tension spring away from the sphere is fixedly connected to the bottom of the conical plate, and the sphere and the tension spring are symmetrically arranged, and the conical plate is coaxially connected to the cylinder. When the cylinder moves upward, the centrifugal force generated during the rotation process is used to make the spheres on both sides alternately knock on the rearview mirror housing.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In the trimming equipment for injection molding production of automobile exterior parts, when the cylinder moves downward, the ejector loosens the debris blocked in the card slot by knocking. On the contrary, when the cylinder moves downward, the ejector knocks the rearview mirror shell to prevent the debris from clogging the slot. At the same time, a vacuum box is used to form a negative pressure area above the left side wall of the rearview mirror shell where the debris is separated. The negative pressure is used to suck the flying debris, thereby guiding the debris to the arc plate, so that the debris slides along the arc plate into the baffle, preventing the debris from scattering around and affecting the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the operating table, exhaust box and vacuum box of the present invention; Figure 3 It is a schematic diagram of the curved plate and the curved plate structure of the present invention; Figure 4 It is a schematic diagram of the structure of the bronchus, gas delivery pipe, sealing plate and exhaust hole of the present invention; Figure 5 For the present invention Figure 4 A is an enlarged structural diagram; Figure 6 It is a schematic diagram of the explosion structure of the power part and the ejection part of the present invention; Figure 7 It is a schematic diagram of the internal structure of the shell cutaway of the present invention; Figure 8 It is a schematic diagram of the internal structure of the paddle, cylinder and screw rod cutaway of the present invention; Fig. 9 It is a schematic diagram of the explosion structure of the conical plate, the cylinder and the screw rod of the present invention; Fig.10 It is a schematic diagram of the explosion structure of the cam and the cylinder of the present invention; Fig.11 It is a schematic diagram of the internal cross-section structure of the vacuum box of the present invention.

[0017] The meaning of each number in the figure is: 100. operating table; 101. grinding device; 102. conveyor belt; 103. fan; 110, curved plate; 111, baffle; 120, exhaust box; 121, air supply pipe; 122, air delivery pipe; 123, bronchial tube; 124, outer shell; 125, auxiliary air pipe; 130. Vacuum box; 140, sealing plate; 141, exhaust hole; 142, return spring; 143, traction rope; 144, connecting plate; 150, dial plate; 160, main magnet; 161, auxiliary magnet; 170, connecting frame; 171, compression spring; 180, Slider; 200, power unit; 201, rotating shaft; 202, housing; 203, blades; 204, high-pressure nozzle; 210, cam; 300, ejector; 301, conical plate; 302, cylinder; 303, screw rod; 304, vertical rod; 310, sphere; 311, tension spring. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 6 and Fig.10 As shown, a finishing device for injection molding production of automobile exterior parts is provided, including an operating table 100, a grinding device 101 and a conveyor belt 102. A fan 103 is arranged on one side of the operating table 100, and the fan 103 is connected to an air supply pipe 121 and an air delivery pipe 122. The end of the air supply pipe 121 is connected to an exhaust box 130.

[0021] The specific structure of the vacuum box 130 is shown in FIG. Fig.11 As shown, a channel is formed inside the vacuum box 130, the channel is connected to multiple suction holes, and a one-way valve is arranged inside each suction hole, and the one-way valve is in an open state when the air flow flows in the channel.

[0022] The end of the air supply pipe 122 is connected to the exhaust box 120, and the exhaust box 120 and the air extraction box 130 are relatively arranged with the rearview mirror shell as the symmetry axis, and the air supply pipe 121 is also connected to the power unit 200, and an ejection part 300 is arranged above the power unit 200 near the rearview mirror shell. The airflow transported in the air supply pipe 121 is used to drive the power unit 200 to rotate, and the power unit 200 is used to move the ejection part 300 upward and rotate. The ejection part 300 knocks on the rearview mirror shell to loosen the debris blocked in the card slot, and the exhaust box 120 sprays the fallen debris along the inner wall of the rearview mirror shell, and cooperates with the air extraction box 130 to form a negative pressure area above the side wall of the rearview mirror shell to suppress the flying debris, thereby preventing the debris from flying around and affecting the surrounding environment.

[0023] Among them, after the conveyor belt 102 conveys the rearview mirror shell to the processing station, the rearview mirror shell is placed between the clamping devices (which are the existing technology) on both sides of the operating table 100, and then the rearview mirror shell is fixed. Then, the rearview mirror shell is corrected and polished using the polishing device 101.

[0024] Therefore, based on the above structure, Figure 3 The process of cleaning debris from the inner wall of the rearview mirror housing is further explained. An arc plate 110 close to the rearview mirror housing is arranged above the vacuum box 130. The vacuum box 130 is fixedly connected to the arc plate 110. One end of the arc plate 110 away from the vacuum box 130 is fixedly connected to the operating table 100. A baffle 111 is arranged at the connection between the arc plate 110 and the operating table 100. The baffle 111 is spliced ​​into a box-shaped body with the arc plate 110 and the operating table 100, and an opening is arranged at the top of the baffle 111 to collect debris sliding along the arc plate 110.

[0025] The specific process is as follows: gas is delivered to the exhaust box 120 through the gas delivery pipe 122, and the gas is ejected from the exhaust box 120 along the inner wall of the rearview mirror housing, and the debris slides on the inner wall of the rearview mirror housing until it flies out from the end of the side wall of the rearview mirror housing near the exhaust box 130. At this time, the exhaust box 130 is in an exhaust state (i.e. Fig.11 The flow state of the airflow in the air intake hole forms a negative pressure around the air intake hole, so that the flying debris can be attracted by the negative pressure to prevent the debris from flying around.

[0026] It should be noted that the air supply pipe 121 referred to above is Figure 3 For example, the exhaust box 120 is located on the left side, and the vacuum box 130 is located on the right side, hereinafter referred to as the left side and the right side.

[0027] Secondly, in Figure 3 Based on and combined with Figure 4 and Fig.11 As shown, the air supply pipe 121 is connected to the bronchial pipe 123, and the bronchial pipe 123 is connected to the channel inside the vacuum box 130. A connecting plate 144 is fixedly connected between the air supply pipe 121, the bronchial pipe 123 and the air delivery pipe 122. A sealing plate 140 is slidably connected inside the connecting plate 144. The sealing plate 140 is provided with a plurality of exhaust holes 141 corresponding to the air supply pipe 121, the bronchial pipe 123 and the air delivery pipe 122. Under normal conditions, the air supply pipe 121 is in a conducting state, the air delivery pipe 122 and the bronchial pipe 123 are offset from the corresponding exhaust holes 141 on the sealing plate 140, and the air delivery pipe 122 and the bronchial pipe 123 are in a closed state.

[0028] On the other hand, when the air supply pipe 121 is in the conducting state, Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the end of the air supply pipe 121 is connected to an auxiliary air pipe 125, and the auxiliary air pipe 125 is located on the right side of the connection between the bronchus 123 and the air supply pipe 121 in the horizontal direction (with Figure 4 For reference), the end of the auxiliary air pipe 125 is connected to a high-pressure nozzle 204, and the high-pressure nozzle 204 is fixedly connected to the shell body 202. The shell body 202 is supported by a support leg. An air leakage hole is opened at the bottom of the shell body 202, and the shell body 202 is rotatably connected to a rotating shaft 201 supported by a support seat. The end of the rotating shaft 201 is coaxially connected to a blade 203, and the blade 203 is located inside the shell body 202. When the gas is ejected from the high-pressure nozzle 204 through the auxiliary air pipe 125, the ejected airflow is used to drive the blade 203 to rotate, thereby providing power for the subsequent driving power unit 200.

[0029] Below through Figure 6 and Figure 8 The structure of the power unit 200 is disclosed. The power unit 200 includes a cam 210 symmetrically arranged on the rotating shaft 201. The cam 210 is fixedly connected to the rotating shaft 201. A paddle 150 is attached to the cam 210. Cards for limiting the rotation of the paddle 150 are arranged on both sides of the paddle 150. The paddle 150 is rotatably connected to a cylinder 302. A screw rod 303 is threadedly fitted inside the cylinder 302. The bottom of the screw rod 303 is coaxially connected to a vertical rod 304 fixed to the operating table 100. The rotation of the cam 210 allows the paddle 150 to slide along the outer edge of the cam 210 and rise. The cylinder 302 slides between the paddle 150 under the action of the threaded fit, and rotates during the upward movement, cooperating with the ejector 300 to knock the rearview mirror housing, thereby preventing debris from sliding along the inner wall into the slot of the card due to the rotation of the grinding angle of the rearview mirror housing during the grinding process, thereby affecting the firmness of the rearview mirror housing and the rearview mirror in the later stage.

[0030] It should be noted that: during the process of the cylinder 302 descending, under the effect of gravity, the shifting plate 150 will naturally descend and always keep in contact with the cam 210 .

[0031] Return to Figure 4 and Figure 5 As shown, when the gas is first delivered to the gas supply pipe 121, the gas delivery pipe 122 and the bronchus 123 are in a closed state, while the auxiliary gas pipe 125 is in a conducting state. Figure 6 Combined with Fig. 9It is further shown that a main magnet 160 is arranged at the bottom of the cylinder 302, and a slide bar 180 is fixedly connected to the vertical rods 304 on both sides, and the slide bar 180 is slidably connected to the connecting frame 170, and the two ends of the connecting frame 170 are both embedded with secondary magnets 161 that magnetically repel the main magnet 160, and a stopper is arranged on the slide bar 180 away from the vertical rod 304, and the two ends of the compression spring 171 sleeved on the slide bar 180 are respectively against the stopper and the end of the connecting frame 170. In this way, under the action of gravity in normal conditions, the main magnet 160 is close to the secondary magnet 161, and the magnetic repulsion between the main magnet 160 and the secondary magnet 161 is used to make the connecting frame 170 slide on the slide bar 180, and in this process, the magnetic repulsion force overcomes the elastic potential energy of the compression spring 171.

[0032] In addition, combined Figure 4 , Figure 5 and Fig. 9 As shown, because a traction rope 143 is fixedly connected to one side of the connecting frame 170, one end of the traction rope 143 away from the connecting frame 170 is fixedly connected to the sealing plate 140, one end of the return spring 142 sleeved on the end of the traction rope 143 abuts against the sealing plate 140, and the other end of the return spring 142 is provided with a shell 124, and the shell 124 is fixedly connected to the gas pipe 122. Therefore, under normal conditions, the magnetic repulsion between the main magnet 160 and the secondary magnet 161 causes the connecting frame 170 to release the traction rope 143, and during the release process, the exhaust hole 141 corresponding to the gas supply pipe 121 gradually changes from misalignment to overlap, and when the gas supply pipe 121 overlaps with the exhaust hole 141, the auxiliary gas pipe 125 is connected, and at this time, the bronchus 123 and the gas pipe 122 change from open to closed.

[0033] The following is an explanation of the rising and falling process of the main magnet 160: when the auxiliary air pipe 125 is in a gradually conducting state, the air supply pipe 122 and the bronchus 123 are in a gradually closing state, that is, the main magnet 160 moves downward, and the ejection part 300 knocks on the rearview mirror housing by rotating. During this process, the main magnet 160 repels the secondary magnet 161, and the traction rope 143 is in the release process.

[0034] When the main magnet 160 moves upward, the main magnet 160 moves away from the secondary magnet 161. Under the elastic action of the compression spring 171, the secondary magnet 161 moves in the opposite direction (moves toward the adjacent upright pole 304), and the traction rope 143 is tightened and pulls the sealing plate 140 to move in the opposite direction, so that the exhaust holes 141 that are misaligned with the gas pipe 122 and the bronchus 123 overlap, that is, the gas pipe 122 and the bronchus 123 gradually change from a closed state to a conducting state, and the gas flowing through the auxiliary gas pipe 125 decreases. At this time, combined with Figure 3As shown, the exhaust box 120 blows out the debris on the inner wall of the rearview mirror housing, and cooperates with the vacuum box 130 to form a negative pressure area above the left side wall of the rearview mirror housing where the debris is separated. The negative pressure is used to suck the flying debris, thereby guiding the debris onto the curved plate 110, so that the debris slides along the curved plate 110 to the baffle 111, preventing the debris from scattering around and affecting the surrounding environment.

[0035] During the downward movement of the cylinder 302, the ejection part 300 loosens the debris stuck in the card slot by knocking. On the contrary, when the cylinder 302 moves downward, the exhaust box 120 blows out the inner wall of the rearview mirror shell, accompanied by the ejection part 300 knocking on the rearview mirror shell, to avoid the debris from clogging the slot in the card during the debris cleaning process.

[0036] To this end, based on the above structure, combined with Figure 6 , Figure 8 and Fig.10 It is shown that the specific structure of the ejection part 300 is disclosed. The ejection part 300 includes a sphere 310 (wherein the sphere 310 can be made of silicone material to prevent damage to the rearview mirror shell when the rearview mirror shell is knocked later), and a tension spring 311 is fixedly connected to the top of the sphere 310. One end of the tension spring 311 away from the sphere 310 is fixedly connected to the bottom of the conical plate 301, and the sphere 310 and the tension spring 311 are symmetrically arranged, and the conical plate 301 is coaxially connected to the cylinder 302.

[0037] In this way, through the threaded cooperation between the cylinder 302 and the screw rod 303, when the cylinder 302 moves upward, as the dial plate 150 drives the cylinder 302 to move, the cylinder 302 drives the conical plate 301 to rotate, and the centrifugal force generated during the rotation process is used to make the balls 310 on both sides alternately knock on the rearview mirror shell. When the conical plate 301 stops rotating, the tension spring 311 gradually changes from being stretched to being naturally drooped, so that the debris blocked in the card slot is cleaned by knocking to prevent the debris from clogging the slot.

[0038] Finally, take out the polished rearview mirror housing, put in a new one and fix it, then repeat the above process.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A finishing device for automobile exterior parts injection molding production, comprising an operating table (100), a polishing device (101) and a conveyor belt (102), wherein a fan (103) is provided on one side of the operating table (100), characterized in that: The fan (103) is connected to an air supply pipe (121) and an air delivery pipe (122); an end of the air supply pipe (121) is connected to an air extraction box (130); an end of the air delivery pipe (122) is connected to an exhaust box (120); the exhaust box (120) and the air extraction box (130) are arranged relative to each other with the rearview mirror housing as a symmetric axis; the air supply pipe (121) is also connected to a power unit (200); an ejection unit (300) is arranged above the power unit (200) and close to the rearview mirror housing, The power unit (200) is driven to rotate by the airflow delivered in the air supply pipe (121), and the power unit (200) is used to move the ejection unit (300) upward and rotate, the ejection unit (300) knocks the rearview mirror housing to loosen the debris blocked in the card slot, the exhaust box (120) ejects the fallen debris along the inner wall of the rearview mirror housing, and cooperates with the exhaust box (130) to form a negative pressure area above the side wall of the rearview mirror housing, so as to suppress the flying debris.

2. The trimming equipment for injection molding of automobile exterior parts according to claim 1, characterized in that: A channel is formed inside the air extraction box (130), the channel is connected to a plurality of air suction holes, and a one-way valve is arranged inside each air suction hole, the one-way valve is in an open state when air flows in the channel, an arc-shaped plate (110) close to the rearview mirror housing is arranged above the air extraction box (130), the air extraction box (130) is fixedly connected to the arc-shaped plate (110), one end of the arc-shaped plate (110) away from the air extraction box (130) is fixedly connected to the operating table (100), a baffle (111) is arranged at the connection between the arc-shaped plate (110) and the operating table (100), and the baffle (111) is assembled with the arc-shaped plate (110) and the operating table (100), and an opening is arranged at the top of the baffle (111) so as to collect debris sliding along the arc-shaped plate (110).

3. The trimming equipment for injection molding of automobile exterior parts according to claim 2, characterized in that: The air supply pipe (121) is in communication with a bronchial pipe (123), and the bronchial pipe (123) is in communication with a channel inside the air extraction box (130). A connecting plate (144) is fixedly connected between the air supply pipe (121), the bronchial pipe (123), and the air delivery pipe (122). A sealing plate (140) is slidably connected inside the connecting plate (144). The sealing plate (140) is provided with a plurality of exhaust holes (141) corresponding to the air supply pipe (121), the bronchial pipe (123), and the air delivery pipe (122). Under normal conditions, the air supply pipe (121) is in a conducting state, the air delivery pipe (122) and the bronchial pipe (123) are misaligned with the exhaust holes (141) corresponding to the sealing plate (140), and the air delivery pipe (122) and the bronchial pipe (123) are in a closed state.

4. The trimming equipment for injection molding of automobile exterior parts according to claim 3, characterized in that: The end of the air supply pipe (121) is connected to an auxiliary air pipe (125), and the auxiliary air pipe (125) is located on the right side of the connection point between the bronchial pipe (123) and the air supply pipe (121) in the horizontal direction. The end of the auxiliary air pipe (125) is connected to a high-pressure nozzle (204), and the high-pressure nozzle (204) is fixedly connected to a shell (202). The shell (202) is supported by a support leg, and an air leakage hole is provided at the bottom of the shell (202). The shell (202) is rotatably connected to a rotating shaft (201) supported by a support seat, and a blade (203) is coaxially connected to the end of the rotating shaft (201), and the blade (203) is located inside the shell (202).

5. The trimming equipment for injection molding of automobile exterior parts according to claim 4, characterized in that: The power unit (200) comprises a cam (210) symmetrically arranged on the rotating shaft (201), the cam (210) being fixedly connected to the rotating shaft (201), a shifting plate (150) being attached to the cam (210), and clamping plates for limiting the rotation of the shifting plate (150) being arranged on both sides of the shifting plate (150), the shifting plate (150) being rotatably connected to a cylinder (302), a screw rod (303) being threadedly engaged inside the cylinder (302), and a vertical rod (304) fixed to the operating table (100) being coaxially connected at the bottom of the screw rod (303), and the shifting plate (150) being slid along the outer edge of the cam (210) and rising by utilizing the rotation of the cam (210).

6. The trimming equipment for injection molding of automobile exterior parts according to claim 5, characterized in that: A main magnet (160) is arranged at the bottom of the cylinder (302), and sliding rods (180) are fixedly connected to the vertical rods (304) on both sides. The sliding rods (180) are slidably connected to the connecting frame (170), and both ends of the connecting frame (170) are embedded with secondary magnets (161) that magnetically repel the main magnet (160). A stopper is arranged on the sliding rod (180) away from the vertical rod (304), and both ends of the compression spring (171) sleeved on the sliding rod (180) respectively abut against the stopper and the end of the connecting frame (170).

7. The trimming equipment for injection molding of automobile exterior parts according to claim 6, characterized in that: A traction rope (143) is fixedly connected to one side of the connecting frame (170); one end of the traction rope (143) away from the connecting frame (170) is fixedly connected to the sealing plate (140); one end of a return spring (142) sleeved on the end of the traction rope (143) abuts against the sealing plate (140); the other end of the return spring (142) is provided with a housing (124); and the housing (124) is fixedly connected to the gas pipe (122).

8. The trimming equipment for injection molding of automobile exterior parts according to claim 1, characterized in that: The ejection portion (300) comprises a sphere (310), a tension spring (311) is fixedly connected to the top of the sphere (310), one end of the tension spring (311) away from the sphere (310) is fixedly connected to the bottom of the conical plate (301), and the sphere (310) and the tension spring (311) are symmetrically arranged, and the conical plate (301) is coaxially connected to the cylinder (302), and when the cylinder (302) moves upward, the centrifugal force generated during the rotation process is used to cause the spheres (310) on both sides to knock on the rearview mirror housing alternately.

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