An automatic gate trimming device in the injection molding process of car lights

Abstract

The present invention discloses an automatic trimming device for a gate in a lamp injection molding process, which belongs to the field of lamp production, and includes a frame, a mounting frame is provided above the frame, a grinding wheel is provided in the mounting frame, a servo motor for driving the grinding wheel to rotate is installed on the mounting frame, a mechanical arm for adjusting the angle of the grinding wheel is provided on the frame, the mounting frame is connected to the arm end of the mechanical arm, and further includes: a scraping mechanism provided on the mounting frame, and when the grinding wheel is working, the scraping mechanism is used to remove dust on the surface of the grinding wheel. The present invention can remove dust impurities adhering to the surface of the grinding wheel by setting the scraping mechanism while the grinding wheel is working, so as to avoid dust accumulation on the surface of the grinding wheel, so as to make the grinding effect of the grinding wheel uneven, thereby affecting the size and shape of the gate, and causing the product to fail to meet the specification requirements, and the surface of the grinding wheel can be blown by the setting of the blowing part, and the removal effect of the scraping mechanism can be improved by the airflow.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle lamp production, and in particular to an automatic gate trimming device in a vehicle lamp injection molding process. Background Art

[0002] Headlights are tools for vehicle lighting. At present, headlights are generally produced by injection molding. The general steps are to inject the molten material into a pre-made mold through a gate to form it in the mold. The gate is also called a feed port, which refers to the entrance part of the channel system in the injection mold used to inject the molten plastic into the mold cavity. Then, due to the existence of the gate, a gate material will be formed on the surface of the headlight after molding. The gate material needs to be ground off by a trimming device to prevent the gate material from affecting the overall size and shape.

[0003] For example, in the Chinese patent application number 201710863315.2, a crankshaft gate grinding device is provided, which is slidably connected to the second slide groove on the second rotating disk through the transmission rod on the first rotating disk, driving the second rotating disk to rotate intermittently, and then driving the fixed box to rotate intermittently, so that when a crankshaft is polished, the fixed box rotates, and the unpolished crankshaft is rotated onto the grinding wheel for polishing.

[0004] However, this type of dressing device cannot remove dust adhering to the surface of the grinding wheel while the grinding wheel is working when in use. It can only be removed after the grinding wheel has been working for a period of time. This not only affects production efficiency, but also the dust generated during grinding accumulates on the surface of the grinding wheel, making the grinding effect of the grinding wheel uneven, thereby affecting the size and shape of the gate, resulting in the product not meeting specification requirements.

[0005] Therefore, we proposed an automatic gate trimming device in the injection molding process of car lights. Summary of the invention

[0006] The purpose of the present invention is to solve the problem in the prior art that dust adhering to the surface of the grinding wheel cannot be removed while the grinding wheel is working, and can only be removed after the grinding wheel is stopped for a period of time, and an automatic gate trimming device in the injection molding process of a car lamp is proposed.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] An automatic gate trimming device in a lamp injection molding process comprises a frame, a mounting frame is provided above the frame, a grinding wheel is provided in the mounting frame, a servo motor for driving the grinding wheel to rotate is installed on the mounting frame, a mechanical arm for adjusting the grinding wheel angle is provided on the frame, the mounting frame is connected to the arm end of the mechanical arm, and further comprises:

[0009] A scraping mechanism is arranged on the mounting frame, and when the grinding wheel is working, the scraping mechanism is used to remove dust on the surface of the grinding wheel;

[0010] A cooling mechanism installed on the scraping mechanism, the cooling mechanism is used to cool the grinding wheel;

[0011] A dust removal mechanism disposed in the scraping mechanism, the dust removal mechanism removes dust adhering to the scraping mechanism;

[0012] An auxiliary mechanism installed on the scraping mechanism is used to reduce the air outlet of the cooling mechanism.

[0013] Preferably, the scraping mechanism includes a mounting shell arranged in the mounting frame, the bottom of the mounting shell is connected to a micro hose for scraping dust off the surface of the grinding wheel, a limit strip is fixed on the mounting frame, a limit block is fixed on the mounting shell, the limit block slides on the outer surface of the limit strip, and the mounting frame is also provided with a blowing part.

[0014] Preferably, the blowing part includes a mounting plate fixed on a mounting frame, a circular shell is fixed on the mounting plate, the outer surface of the circular shell is connected to a connecting pipe 1, an air pump is fixed on the frame, a hose 1 is connected between the air outlet end of the air pump and the connecting pipe 1, the outer surface of the circular shell is connected to a hose 2, and the end of the hose 2 away from the circular shell is connected to the mounting shell.

[0015] Preferably, the blowing part also includes an impeller arranged in a circular shell, a rotating rod 1 is fixed at the axis of the impeller, the rotating rod 1 is rotatably connected to the mounting plate through a bearing, a disc is fixed to the end of the rotating rod 1 away from the impeller, a push pin is fixed to the side of the disc away from the rotating rod 1, an arc-shaped shell is slidably provided on the outer surface of the push pin, a connecting rod is fixed on the arc-shaped shell, the connecting rod is slidably connected to the mounting frame, a mounting block is fixed to the end of the connecting rod away from the arc-shaped shell, and the mounting block is fixed to the bottom of the mounting shell.

[0016] Preferably, the cooling mechanism includes a piston cylinder fixed on the mounting block, a piston disk sliding inside the piston cylinder, an extrusion rod fixed to the side of the piston disk, the extrusion rod is slidably connected to the piston cylinder, a fixed disk is fixed to the end of the extrusion rod away from the piston disk, a spring 1 is sleeved on the outer surface of the extrusion rod, the two ends of the spring 1 are respectively fixedly connected to the fixed disk and the piston cylinder, a rectangular block is fixed to the side of the fixed disk close to the mounting block, a nozzle is fixed to the top of the rectangular block, a hose 3 is connected between the piston cylinder and the nozzle, and a cooling part is provided on the piston cylinder.

[0017] Preferably, the cooling part includes a cold air shell fixed on the frame, both sides of the cold air shell are connected with connecting pipe 2, the connecting pipe 2 is connected with hose 4, the end of the hose 4 away from the connecting pipe 2 is connected with the piston cylinder, the connecting pipe 2 is installed with a one-way valve 1, the piston cylinder is connected with connecting pipe 3, the top of the connecting pipe 3 is connected with hose 5, the outer surface of the connecting pipe 3 is installed with one-way valve 2, a rectangular shell is fixed on the top of the mounting shell, the end of the hose 5 away from the connecting pipe 3 is connected to the rectangular shell, the outer surface of the rectangular shell is connected with an L-shaped tube, the end of the L-shaped tube away from the rectangular shell is connected with a jet shell, and the jet shell is provided with an air outlet on the side close to the grinding wheel.

[0018] Preferably, the dust removal mechanism includes a rack fixed on a side of the fixed plate close to the jet shell, the outer surface of the rack is meshed with a gear, a rotating rod 2 is fixed at the axis of the gear, the rotating rod 2 is rotatably connected to the mounting shell through a bearing, and a cam is fixed on the end of the rotating rod 2 away from the gear.

[0019] Preferably, the dust removal mechanism also includes a lifting rod slidably connected to the bottom wall of the mounting shell, a lifting plate is fixed to the top of the lifting rod, the lifting plate corresponds to the position of the cam, a second spring is sleeved on the outer surface of the lifting rod, the two ends of the second spring are respectively fixedly connected to the mounting shell and the lifting plate, a scraper plate is fixed to the bottom end of the lifting rod, and the scraper plate is slidably connected to the micro hose.

[0020] Preferably, the auxiliary mechanism includes an air cushion fixed on the top of the lifting plate, the outer surface of the air cushion is connected to a hose six, a fixed shell is fixed on the top of the rectangular shell, an airbag is fixed on the top wall of the fixed shell, the end of the hose six away from the air cushion is connected to the airbag, a horizontal plate is fixed in the fixed shell, a sliding rod is fixed on the outer surface of the airbag, the sliding rod is slidably connected to the rectangular shell and the horizontal plate, a blocking block is fixed to the end of the sliding rod away from the airbag, and the size of the blocking block corresponds to the size of the L-shaped tube.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. By setting the scraping mechanism, dust and impurities adhering to the surface of the grinding wheel can be removed while the grinding wheel is working, so as to avoid dust accumulation on the surface of the grinding wheel, making the grinding effect of the grinding wheel uneven, thereby affecting the size and shape of the gate, and causing the product to fail to meet the specification requirements. By setting the blowing part, air can be blown on the surface of the grinding wheel, and the removal effect of the scraping mechanism can be improved through the air flow. And by the drive of wind force, the mounting shell and the micro hose can be driven to move back and forth at the same time, which can further improve the scraping effect of the micro hose.

[0023] 2. Through the setting of the cooling mechanism, the grinding wheel and the mounting shell can be vibrated while the scraping mechanism moves back and forth. When the grinding wheel vibrates, it can help loosen and remove dust and other impurities attached to the surface of the grinding wheel, so that the grinding wheel maintains good cutting performance. When the micro-hose vibrates, it can also make the dust on the surface of the micro-hose fall off to avoid the dust affecting the scraping effect of the micro-hose. In addition, through the cooperation between the cooling mechanism and the cooling part, cold air can be blown to the surface of the grinding wheel. Before the grinding wheel passes through the micro-hose, the micro-hose can be cooled to avoid the micro-hose softening due to the excessively high temperature of the grinding wheel and affecting the removal effect.

[0024] 3. Through the setting of the dust removal mechanism, while the cooling mechanism is working, it can also drive the scraper plate to slide on the outer surface of the micro hose. This method can not only appropriately improve the hardness of the micro hose, but also scrape off the dust adhering to the surface of the micro hose again, preventing the dust from adhering to the grinding wheel again, and further improving the removal effect of the micro hose.

[0025] 4. Through the setting of the auxiliary mechanism, when the lifting plate moves upward, it can also synchronously drive the blocking block to intermittently block the opening of the L-shaped tube, so that the air outlet of the L-shaped tube gradually shrinks, increasing the pressure of the cold air when it is ejected, thereby improving the cooling effect, and further avoiding the grinding wheel temperature from being too high and softening, which affects the removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of an automatic gate trimming device in a lamp injection molding process proposed by the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of a mounting frame of an automatic gate trimming device in a vehicle lamp injection molding process proposed by the present invention;

[0028] Figure 3 This is a schematic diagram of the internal structure of a circular shell of an automatic gate trimming device in a headlight injection molding process proposed by the present invention;

[0029] Figure 4 This is a bottom view schematic diagram of the internal structure of a piston cylinder of an automatic gate trimming device in a vehicle lamp injection molding process proposed by the present invention;

[0030] Figure 5 The invention provides an automatic gate trimming device in the injection molding process of a vehicle lamp. Figure 4 A schematic diagram of the structure enlargement in the middle;

[0031] Figure 6 This is a schematic diagram of the internal structure of a mounting shell of an automatic gate trimming device in a vehicle lamp injection molding process proposed by the present invention;

[0032] Figure 7The invention provides an automatic gate trimming device in the injection molding process of a vehicle lamp. Figure 6 A magnified schematic diagram of the structure at B in the middle;

[0033] Figure 8 The invention provides an automatic gate trimming device in the injection molding process of a vehicle lamp. Figure 6 Enlarged schematic diagram of the structure at point C in the middle.

[0034] In the figure: 1, frame; 2, mounting frame; 3, grinding wheel; 4, servo motor; 5, mechanical arm; 6, scraping mechanism; 61, mounting shell; 62, micro hose; 63, limit strip; 64, limit block; 65, blowing part; 651, mounting plate; 652, round shell; 653, connecting pipe 1; 654, air pump; 655, hose 1; 656, hose 2; 657, impeller; 658, rotating rod 1; 659, disc; 6510, push column; 6511, arc shell; 6512, connecting rod; 6513, mounting block; 7, cooling mechanism; 70, rectangular block; 71, piston cylinder; 72, piston disc; 73, extrusion rod; 74, fixed disc; 75. Spring one; 77. Hose three; 78. Nozzle; 76. Cooling unit; 761. Air conditioning shell; 762. Connecting pipe two; 763. Hose four; 764. One-way valve one; 765. Connecting pipe three; 766. Hose five; 767. Rectangular shell; 768. L-shaped tube; 769. Jet shell; 7610. One-way valve two; 8. Dust removal mechanism; 81. Rack; 82. Gear; 83. Rotating rod two; 84. Cam; 85. Lifting rod; 86. Lifting plate; 87. Spring two; 88. Dust scraper plate; 9. Auxiliary mechanism; 91. Air cushion; 92. Hose six; 93. Fixed shell; 94. Air bag; 95. Horizontal plate; 96. Sliding rod; 97. Blocking block. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] Embodiment 1, refer to Figure 1-Figure 8 , an automatic gate trimming device in the injection molding process of a headlight, comprising a frame 1, a mounting frame 2 is provided above the frame 1, a grinding wheel 3 is provided in the mounting frame 2, a servo motor 4 for driving the grinding wheel 3 to rotate is installed on the mounting frame 2, a mechanical arm 5 for adjusting the angle of the grinding wheel 3 is provided on the frame 1, the mounting frame 2 is connected to the arm end of the mechanical arm 5, and further comprising:

[0037] A scraping mechanism 6 is arranged on the mounting frame 2, and when the grinding wheel 3 is working, the scraping mechanism 6 is used to remove dust on the surface of the grinding wheel 3;

[0038] A cooling mechanism 7 installed on the scraping mechanism 6, the cooling mechanism 7 is used to cool the grinding wheel 3;

[0039] A dust removal mechanism 8 is disposed in the scraping mechanism 6, and the dust removal mechanism 8 removes dust adhering to the scraping mechanism 6;

[0040] The auxiliary mechanism 9 is installed on the scraping mechanism 6 , and the auxiliary mechanism 9 is used to reduce the air outlet of the cooling mechanism 7 .

[0041] Furthermore, the scraping mechanism 6 includes a mounting shell 61 arranged in the mounting frame 2, the bottom of the mounting shell 61 is connected to a micro hose 62 for scraping dust off the surface of the grinding wheel 3, a limiting strip 63 is fixed on the mounting frame 2, a limiting block 64 is fixed on the mounting shell 61, the limiting block 64 slides on the outer surface of the limiting strip 63, and a blowing part 65 is also provided on the mounting frame 2.

[0042] Furthermore, the blowing part 65 includes a mounting plate 651 fixed on the mounting frame 2, a circular shell 652 is fixed on the mounting plate 651, the outer surface of the circular shell 652 is connected to a connecting pipe 1 653, an air pump 654 is fixed on the frame 1, a hose 1 655 is connected between the air outlet end of the air pump 654 and the connecting pipe 1 653, the outer surface of the circular shell 652 is connected to a hose 2 656, and the end of the hose 2 656 away from the circular shell 652 is connected to the mounting shell 61.

[0043] Furthermore, the blowing part 65 also includes an impeller 657 arranged in a circular shell 652, and a rotating rod 658 is fixed at the axis of the impeller 657, and the rotating rod 658 is rotatably connected to the mounting plate 651 through a bearing, and a disc 659 is fixed to the end of the rotating rod 658 away from the impeller 657, and a push column 6510 is fixed to the side of the disc 659 away from the rotating rod 658, and an arc-shaped shell 6511 is slidably provided on the outer surface of the push column 6510, and a connecting rod 6512 is fixed on the arc-shaped shell 6511, and the connecting rod 6512 is slidably connected to the mounting frame 2, and a mounting block 6513 is fixed to the end of the connecting rod 6512 away from the arc-shaped shell 6511, and the mounting block 6513 is fixed to the bottom of the mounting shell 61.

[0044] When in use, the molded headlight is placed on the frame 1, and the headlight is fixed manually or by setting a fixing device on the frame 1. The grinding wheel 3 is driven to rotate by the servo motor 4, and the gate material on the surface of the headlight can be ground. Through the setting of the mechanical arm 5, the angle of the mounting frame 2 and the grinding wheel 3 can be adjusted to facilitate the grinding of the gate material at different positions of the headlight and realize automatic finishing. Since the shape of the headlight is mostly a curved structure, this method can provide more precise control when processing edges or curved surfaces. This is a prior art, so it will not be described in detail here.

[0045] Considering that the dust and impurities generated by the gate material after grinding will adhere to the outer surface of the grinding wheel 3 when the grinding wheel 3 is grinding, and in the prior art, the dust adhering to the surface of the grinding wheel 3 cannot be removed while the grinding wheel 3 is working, and can only be removed by stopping the machine, which not only affects the production efficiency, but also the dust generated during grinding accumulates on the surface of the grinding wheel 3, making the grinding effect of the grinding wheel 3 uneven, thereby affecting the size and shape of the gate, resulting in the product not meeting the specification requirements. The following improvements are now made:

[0046] By installing the shell 61 and the micro hose 62, the grinding wheel 3 can remove dust adhering to the surface of the grinding wheel 3 through the friction between the grinding wheel 3 and the micro hose 62 when the grinding wheel 3 rotates. In this way, the dust and impurities adhering to the surface of the grinding wheel 3 can be removed while the grinding wheel 3 is working, thereby preventing dust from accumulating on the surface of the grinding wheel 3 and causing uneven grinding effect of the grinding wheel 3.

[0047] By setting the air pump 654, when the grinding wheel 3 is working, the air pump 654 can be started at the same time. The strong wind force generated by the air pump 654 enters the circular shell 652 through the hose 1 655 and the connecting pipe 1 653, and then enters the installation shell 61 from the hose 2 656, and blows to the surface of the grinding wheel 3 from the micro hose 62. This design can blow air to the surface of the grinding wheel 3, and the removal effect of the scraping mechanism 6 can be improved through the airflow.

[0048] The position of the impeller 657 corresponds to the position of the connecting tube 653. When the wind enters the circular shell 652 from the connecting tube 653, the impeller 657 will be blown to rotate, and the impeller 657 will drive the rotating rod 658 and the disk 659 to rotate. The disk 659 drives the push column 6510 to make a circular motion. Since the push column 6510 is slidably connected to the arc-shaped shell 6511 and the connecting rod 6512 is slidably connected to the mounting frame 2, when the push column 6510 moves, it will push the arc-shaped shell 6511 and the connecting rod 6512 to reciprocate left and right. The connecting rod 6512 drives the mounting block 6513, the mounting shell 61 and the micro hose 62 to move left and right together. By moving the micro hose 62, the friction between the micro hose 62 and the grinding wheel 3 can be improved, and the removal effect of dust and impurities can be improved. By sliding the limit block 64 on the surface of the limit bar 63, the stability of the mounting shell 61 during movement can be improved.

[0049] It should be noted that another alternative method of driving the impeller 657 to move by wind is to install a motor in the circular shell 652 to drive the rotating rod 658 and the disk 659 to rotate, ensuring that the output power can drive the mounting shell 61 to move left and right.

[0050] Example 2, refer to Figure 1-Figure 8 The cooling mechanism 7 includes a piston cylinder 71 fixed on the mounting block 6513, a piston disk 72 slidingly arranged in the piston cylinder 71, an extrusion rod 73 fixed to the side of the piston disk 72, the extrusion rod 73 is slidably connected to the piston cylinder 71, a fixed disk 74 is fixed to the end of the extrusion rod 73 away from the piston disk 72, a spring 75 is sleeved on the outer surface of the extrusion rod 73, the two ends of the spring 75 are respectively fixedly connected to the fixed disk 74 and the piston cylinder 71, a rectangular block 70 is fixed to the side of the fixed disk 74 close to the mounting block 6513, a nozzle 78 is fixed to the top of the rectangular block 70, a hose 77 is connected between the piston cylinder 71 and the nozzle 78, and a cooling portion 76 is provided on the piston cylinder 71.

[0051] Furthermore, the cooling part 76 includes a cold air shell 761 fixed on the frame 1, and both sides of the cold air shell 761 are connected with connecting pipe 2 762, and the connecting pipe 2 762 is connected with hose 4 763, and the end of hose 4 763 away from the connecting pipe 2 762 is connected with the piston cylinder 71, and a one-way valve 1 764 is installed on the connecting pipe 2 762, and the piston cylinder 71 is connected with a connecting pipe 3 765, and the top of the connecting pipe 3 765 is connected with hose 5 766, and the outer surface of the connecting pipe 3 765 is installed with a one-way valve 2 7610, and a rectangular shell 767 is fixed on the top of the mounting shell 61, and the end of the hose 5 766 away from the connecting pipe 3 765 is connected to the rectangular shell 767, and the outer surface of the rectangular shell 767 is connected with an L-shaped tube 768, and the end of the L-shaped tube 768 away from the rectangular shell 767 is connected with a jet shell 769, and the jet shell 769 is provided with an air outlet on the side close to the grinding wheel 3.

[0052] Considering that the surface temperature of the grinding wheel 3 increases during grinding, when the micro hose 62 contacts the surface of the grinding wheel 3, the micro hose 62 softens due to the increased temperature, thereby affecting the dust removal effect of the micro hose 62. The following improvements are now made:

[0053] The piston cylinder 71 is connected to the mounting block 6513. When the mounting block 6513 moves left and right due to the push of the push column 6510, the piston cylinder 71 and the fixed plate 74 will also be driven to move left and right. When the fixed plate 74 moves to contact the grinding wheel 3, it will generate an impact force on the grinding wheel 3, causing the grinding wheel 3 to vibrate appropriately, which can help loosen and remove dust and other impurities attached to the surface of the grinding wheel 3, so that the grinding wheel 3 maintains good cutting performance. When the fixed plate 74 is subjected to the extrusion force, it will drive the extrusion rod 73 and the piston plate 72 to move in the piston cylinder 71, and squeeze the spring 1 75 until the rectangular block 70 contacts the mounting block 6513. The mounting block 6513 can be impacted by the rectangular block 70, so that the mounting block 6513, the micro hose 62 and the mounting shell 61 vibrate. When the micro hose 62 vibrates, the dust on the surface of the micro hose 62 can also be shaken off to prevent the dust from affecting the scraping effect of the micro hose 62.

[0054] When the fixed plate 74 is not in contact with the grinding wheel 3, the elastic force of the spring 1 75 will reset the fixed plate 74, so that the left and right movement of the mounting block 6513 will also drive the piston plate 72 to move left and right in the piston cylinder 71. When the piston plate 72 moves to the right, the cold air in the piston cylinder 71 can be squeezed, so that the cold air enters the rectangular shell 767 through the connecting pipe 3 765 and the hose 5 766, and is squeezed from the L-shaped pipe 768 to the jet shell 769, so that the cold air is sprayed from the jet shell 769 to the surface of the grinding wheel 3. In this way, before the grinding wheel 3 passes through the micro hose 62, the micro hose 62 can be cooled, and by blowing air, dust and impurities can be pre-treated and part of the dust can be removed first, thereby improving the scraping effect of the micro hose 62 and avoiding the micro hose 62 from softening due to the excessive temperature of the grinding wheel 3 and affecting the removal effect.

[0055] When the piston disc 72 moves to the left, since the piston cylinder 71 and the cold air shell 761 are connected by the connecting pipe 2 762 and the hose 4 763, the cold air in the cold air shell 761 will be sucked into the piston cylinder 71 through the negative pressure to complete the replenishment of the cold air. Through the setting of the one-way valve 1 764 and the one-way valve 2 7610, the cold air can only flow in one direction to avoid the backflow of the cold air. When the piston disc 72 moves to the left, the gas on the left side of the piston disc 72 in the piston cylinder 71 will be squeezed, so that the gas can enter the nozzle 78 through the hose 3 77, and be sprayed from the nozzle 78 to the surface of the grinding wheel 3, which can blow off the dust and further improve the dust removal effect.

[0056] It should be noted that ice cubes or other coolants, such as ice bags, cooling packs, etc., can be placed in the cold air shell 761. These substances absorb heat through melting or chemical reaction, reduce the temperature in the cold air shell 761, and thus generate cold air. Since cooling parts 76 are provided on both sides of the mounting shell 61, cold air can be sprayed onto the surface of the grinding wheel 3 regardless of whether the mounting shell 61 moves to the left or to the right.

[0057] Example 3, refer to Figure 1-Figure 8 The dust removal mechanism 8 includes a rack 81 fixed to a side of the fixed plate 74 close to the jet shell 769, the outer surface of the rack 81 is meshed with a gear 82, a rotating rod 83 is fixed at the axis of the gear 82, the rotating rod 83 is rotatably connected to the mounting shell 61 through a bearing, and a cam 84 is fixed to the end of the rotating rod 83 away from the gear 82.

[0058] Furthermore, the dust removal mechanism 8 also includes a lifting rod 85 slidably connected to the bottom wall of the mounting shell 61, a lifting plate 86 is fixed to the top of the lifting rod 85, the lifting plate 86 corresponds to the position of the cam 84, a spring 87 is sleeved on the outer surface of the lifting rod 85, the two ends of the spring 87 are respectively fixedly connected to the mounting shell 61 and the lifting plate 86, a dust scraper plate 88 is fixed to the bottom end of the lifting rod 85, and the dust scraper plate 88 is slidably connected to the micro hose 62.

[0059] Furthermore, the auxiliary mechanism 9 includes an air cushion 91 fixed on the top of the lifting plate 86, the outer surface of the air cushion 91 is connected to a hose 6 92, a fixed shell 93 is fixed to the top of the rectangular shell 767, an airbag 94 is fixed to the top wall of the fixed shell 93, the end of the hose 6 92 away from the air cushion 91 is connected to the airbag 94, a horizontal plate 95 is fixed in the fixed shell 93, a slide bar 96 is fixed to the outer surface of the airbag 94, the slide bar 96 is slidably connected to the rectangular shell 767 and the horizontal plate 95, and a blocking block 97 is fixed to the end of the slide bar 96 away from the airbag 94, and the size of the blocking block 97 corresponds to the size of the L-shaped tube 768.

[0060] Considering that after the micro hose 62 scrapes away the dust, some of the dust will also adhere to the surface of the micro hose 62. When the micro hose 62 scrapes away the dust, the dust will return to the surface of the grinding wheel 3, affecting the removal effect. The following improvements are now made:

[0061] The rack 81 is connected to the fixed plate 74. When the fixed plate 74 moves left and right, the rack 81 will also be driven to move left and right. Since the rack 81 is meshed with the gear 82, when the rack 81 moves, the gear 82 and the rotating rod 83 will be driven to rotate. The rotating rod 83 will drive the cam 84 to rotate clockwise by a certain angle. When the cam 84 rotates to contact the lifting plate 86, it will generate downward pressure on the lifting plate 86 and squeeze the spring 87. When the fixed plate 74 is reset and the rack 81 is driven to reset, the cam 84 will also be driven to reset, thereby releasing the squeezing of the lifting plate 86. The elastic force of the spring 87 will drive the lifting plate 86 to move upward.

[0062] When the lifting plate 86 moves downward, the lifting rod 85 is connected to the lifting plate 86, which will also drive the lifting rod 85 and the scraper plate 88 to move downward. Since the micro hose 62 slides in the scraper plate 88, the dust adhering to the surface of the micro hose 62 can be scraped off through the movement of the scraper plate 88, preventing the dust from adhering to the grinding wheel 3 again, thereby further improving the removal effect of the micro hose 62.

[0063] When the lifting plate 86 moves upward, it is connected to the lifting plate 86 through the air cushion 91, which will also drive the air cushion 91 to move upward. When the air cushion 91 contacts the top wall of the mounting shell 61, it will squeeze the air cushion 91, so that the gas in the air cushion 91 enters the air bag 94 through the hose 6 92, causing the air bag 94 to expand. The air bag 94 is connected to the air bag 94 through the slide bar 96. Therefore, the expansion of the air bag 94 will drive the slide bar 96 and the blocking block 97 to move downward, causing the blocking block 97 to gradually reduce the air outlet of the L-shaped tube 768. When cold air is blown out from the L-shaped tube 768, the pressure of the cold air when it is ejected can be increased through the reduced air outlet, thereby improving the cooling and pretreatment effects, and further avoiding the grinding wheel 3 from softening due to excessive temperature and affecting the removal effect.

[0064] It should be noted that the lifting plate 86 does not contact the inner wall of the mounting shell 61 , so that the gas blown out by the air pump 654 can pass through the gap between the lifting plate 86 and the mounting shell 61 and be ejected from the micro hose 62 .

[0065] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic gate trimming device in a lamp injection molding process, comprising a frame (1), a mounting frame (2) is provided above the frame (1), a grinding wheel (3) is provided in the mounting frame (2), a servo motor (4) for driving the grinding wheel (3) to rotate is installed on the mounting frame (2), a mechanical arm (5) for adjusting the angle of the grinding wheel (3) is provided on the frame (1), the mounting frame (2) is connected to the arm end of the mechanical arm (5), and the device is characterized in that: Also includes: A scraping mechanism (6) is arranged on the mounting frame (2), and when the grinding wheel (3) is working, the scraping mechanism (6) is used to remove dust on the surface of the grinding wheel (3). The scraping mechanism (6) comprises a mounting shell (61) arranged in the mounting frame (2), and the bottom of the mounting shell (61) is connected to a micro hose (62) for scraping dust on the surface of the grinding wheel (3). The mounting frame (2) is fixed with a limit strip (63), and the mounting shell (61) is fixed with a limit block (64), and the limit block (64) slides on The outer surface of the limit strip (63) is provided on the mounting frame (2); the blowing portion (65) is further provided on the mounting frame (2); the blowing portion (65) comprises a mounting plate (651) fixed on the mounting frame (2); a circular shell (652) is fixed on the mounting plate (651); the outer surface of the circular shell (652) is connected to a connecting pipe (653); an air pump (654) is fixed on the frame (1); a hose (655) is connected between the air outlet end of the air pump (654) and the connecting pipe (653); the circular shell The outer surface of the circular shell (652) is connected to a second hose (656), and one end of the second hose (656) away from the circular shell (652) is connected to the mounting shell (61). The blowing portion (65) also includes an impeller (657) arranged in the circular shell (652). A rotating rod (658) is fixed at the axis of the impeller (657). The rotating rod (658) is rotatably connected to the mounting plate (651) through a bearing. A disc (659) is fixed to one end of the rotating rod (658) away from the impeller (657). A push column (6510) is fixed to a side of the disk (659) away from the rotating rod (658); an arc-shaped shell (6511) is slidably mounted on the outer surface of the push column (6510); a connecting rod (6512) is fixed to the arc-shaped shell (6511); the connecting rod (6512) is slidably connected to the mounting frame (2); a mounting block (6513) is fixed to one end of the connecting rod (6512) away from the arc-shaped shell (6511); and the mounting block (6513) is fixed to the bottom of the mounting shell (61); A cooling mechanism (7) mounted on the scraping mechanism (6), the cooling mechanism (7) being used to cool the grinding wheel (3), the cooling mechanism (7) comprising a piston cylinder (71) fixed on the mounting block (6513), a piston disc (72) slidingly arranged in the piston cylinder (71), an extrusion rod (73) fixed to the side of the piston disc (72), the extrusion rod (73) being slidably connected to the piston cylinder (71), a fixed disc (74) fixed to one end of the extrusion rod (73) away from the piston disc (72), and a spring (74) sleeved on the outer surface of the extrusion rod (73). 5), the two ends of the spring 1 (75) are respectively fixedly connected to the fixed plate (74) and the piston cylinder (71), a rectangular block (70) is fixed on the side of the fixed plate (74) close to the mounting block (6513), a nozzle (78) is fixed on the top of the rectangular block (70), a hose 3 (77) is connected between the piston cylinder (71) and the nozzle (78), a cooling part (76) is provided on the piston cylinder (71), and the cooling part (76) includes a cold air shell (761) fixed on the frame (1), and both sides of the cold air shell (761) are connected to The second connecting pipe (762) is connected to a hose fourth (763), and one end of the hose fourth (763) away from the connecting pipe second (762) is connected to the piston cylinder (71). The second connecting pipe (762) is installed with a one-way valve first (764). The piston cylinder (71) is connected to the connecting pipe third (765), and the top of the connecting pipe third (765) is connected to the hose fifth (766). The outer surface of the connecting pipe third (765) is installed with a one-way valve second (7610). The top of the mounting shell (61) is fixed with a rectangular shell (767). The end of the hose five (766) away from the connecting pipe three (765) is connected to the rectangular shell (767); the outer surface of the rectangular shell (767) is connected to an L-shaped tube (768); the end of the L-shaped tube (768) away from the rectangular shell (767) is connected to an air jet shell (769); a side of the air jet shell (769) close to the grinding wheel (3) is provided with an air outlet; and an auxiliary mechanism (9) installed on the scraping mechanism (6); the auxiliary mechanism (9) is used to reduce the air outlet at the end of the L-shaped tube (768) in the cooling mechanism (7) that is connected to the rectangular shell (767); A dust removal mechanism (8) is arranged in the scraping mechanism (6), and the dust removal mechanism (8) removes dust adhering to the scraping mechanism (6).

2. The automatic gate trimming device in the lamp injection molding process according to claim 1 is characterized in that: The dust removal mechanism (8) comprises a rack (81) fixed to a side of a fixed plate (74) close to the jet shell (769); a gear (82) is meshed on the outer surface of the rack (81); a rotating rod (83) is fixed at the axis of the gear (82); the rotating rod (83) is rotatably connected to the mounting shell (61) via a bearing; and a cam (84) is fixed to one end of the rotating rod (83) away from the gear (82).

3. The automatic gate trimming device in the lamp injection molding process according to claim 2 is characterized in that: The dust removal mechanism (8) further comprises a lifting rod (85) slidably connected to the bottom wall of the mounting shell (61); a lifting plate (86) is fixed to the top of the lifting rod (85); the lifting plate (86) corresponds to the position of the cam (84); a second spring (87) is sleeved on the outer surface of the lifting rod (85); the two ends of the second spring (87) are respectively fixedly connected to the mounting shell (61) and the lifting plate (86); a dust scraping plate (88) is fixed to the bottom end of the lifting rod (85); the dust scraping plate (88) is slidably connected to the micro hose (62).

4. The automatic gate trimming device in the lamp injection molding process according to claim 3 is characterized in that: The auxiliary mechanism (9) comprises an air cushion (91) fixed on the top of the lifting plate (86), the outer surface of the air cushion (91) is connected to a hose six (92), a fixed shell (93) is fixed on the top of the rectangular shell (767), an air bag (94) is fixed on the top wall of the fixed shell (93), the end of the hose six (92) away from the air cushion (91) is connected to the air bag (94), a horizontal plate (95) is fixed inside the fixed shell (93), a sliding rod (96) is fixed on the outer surface of the air bag (94), the sliding rod (96) is slidably connected to the rectangular shell (767) and the horizontal plate (95), and a blocking block (97) is fixed on the end of the sliding rod (96) away from the air bag (94), and the size of the blocking block (97) corresponds to the size of the L-shaped tube (768).

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