Burr-free injection molding equipment for double-light lens of low beam and high beam of automobile

Abstract

The utility model discloses burr-free injection molding equipment for a dual-light lens of a low beam and a high beam of an automobile. The burr-free injection molding equipment comprises a workbench and a burr-preventing injection molding mechanism, an injection molding frame is arranged on the upper surface of the workbench, and evenly-distributed sliding columns are fixedly connected between the left inner wall and the right inner wall of the injection molding frame. The anti-burr injection molding mechanism comprises a first anti-burr plate, a molding plate, a fillet groove, a second mold, dislocation plates and a first telescopic spring, the dislocation plates are slidably connected to the right sides of the outer arc surfaces of the four sliding columns correspondingly, the right ends of the four dislocation plates are fixedly connected with the molding plate, and the second mold is arranged on the right side face of the molding plate; the left sides of the outer arc faces of the four sliding columns are slidably connected with the four corners of a first burr preventing plate, and a fillet groove is formed in the right side face of the first burr preventing plate. According to the burr-free injection molding equipment for the double-light lens of the low beam and the high beam of the automobile, the butt joint mode of the three mold sets directly avoids forming a mold groove through butt joint of tangent planes, and the possibility of burr occurrence is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive optics, and particularly relates to a burr-free injection molding device for an automotive high-low beam dual-light lens. Background Technique

[0002] A dual-light lens is mostly used in xenon headlights that share a single light source for high and low beams. There is a light-shielding plate inside the lens, and the high and low beams are achieved by the up and down movement of the light-shielding plate. In this way, only one xenon bulb is needed to achieve the switching between high and low beams.

[0003] The existing method of manufacturing a dual-light lens by a thermoplastic machine generally uses a two-material injection molding method, usually completed by a set of molds. The so-called set of molds refers to a pair of molds composed of a movable mold and a fixed mold one, and another pair of molds composed of a movable mold and a fixed mold two. The two movable molds are exactly the same, and a set of molds is composed of two pairs of molds, and then injection molding operations are carried out; there are some problems with this injection molding method. For example, the docking method of such forming molds is often directly docked and then driven by external hydraulic or pneumatic pressure. The docking surface will present a cut surface shape, and these gaps will cause a large number of burrs to be generated after forming. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects, provide a burr-free injection molding device for an automotive high-low beam dual-light lens, avoid forming a mold groove with a cut surface docking, and effectively prevent the possibility of burrs appearing, and can effectively solve the problems in the background technique.

[0005] To achieve the above object, the utility model provides the following technical solution: A burr-free injection molding device for an automotive high-low beam dual-light lens, including a workbench and a burr-free injection molding mechanism;

[0006] An injection molding frame is provided on the upper surface of the workbench, and evenly distributed sliding columns are fixedly connected between the left and right inner walls of the injection molding frame;

[0007] The burr-free injection molding mechanism includes a first burr-free plate, a forming plate, a rounded corner groove, a second mold, a dislocation plate, and a first telescopic spring. The dislocation plates are respectively slidably connected to the right outer arc surfaces of the four sliding columns. The right ends of the four dislocation plates are fixedly connected to a forming plate. A second mold is provided on the right side surface of the forming plate. The left outer arc surfaces of the four sliding columns are slidably connected to the four corners of a first burr-free plate. A rounded corner groove is provided on the right side surface of the first burr-free plate. Uniformly distributed first telescopic springs are provided between the right side surface of the first burr-free plate and the left side surfaces of the four dislocation plates. The four first telescopic springs are respectively movably sleeved on the middle parts of the outer arc surfaces of the sliding columns on the same side. The docking method of the three mold groups directly avoids forming a mold groove with a cut surface docking, and effectively prevents the possibility of burrs appearing.

[0008] Furthermore, the deburring injection molding mechanism further includes a product ejection post, an avoidance groove, an ejection block, and a return spring. The product ejection post is slidably connected to the middle of the right side of the second mold. An ejection block is provided at the left end of the product ejection post. An avoidance groove is opened in the middle of the sandwich layer of the second mold. The outer arc surface of the ejection block is slidably connected to the inside of the avoidance groove. A return spring is provided between the right side surface of the ejection block and the right inner wall of the second mold. The outer arc surface of the product ejection post is movably sleeved with the return spring. A right ejector post is provided in the middle of the right inner wall of the injection molding frame. The product ejection post and the right ejector post are corresponding in the left-right position, realizing the function of ejecting the finished product.

[0009] Furthermore, it further includes a driving cylinder. The driving cylinder is arranged on the right side surface of the injection molding frame. The telescopic end of the driving cylinder is fixedly connected to the right end of the second mold. The air inlet of the driving cylinder is externally connected to an external air pump, realizing the function of changing the position of the mold.

[0010] Furthermore, it further includes a first mold. The first mold is arranged on the left inner wall of the injection molding frame. A first molding post platform is provided on the right side surface of the first mold, realizing the function of left-side limiting.

[0011] Furthermore, it further includes a cold water circulation channel. The cold water circulation channel is arranged inside the first molding post platform. The water inlet and the water outlet of the cold water circulation channel are respectively externally connected to an external cooling circulation mechanism, realizing the function of condensation circulation.

[0012] Furthermore, it further includes a single-chip microcomputer. The single-chip microcomputer is arranged at the front end of the workbench. The input end of the single-chip microcomputer is electrically connected to an external power supply, controlling the normal operation of the electrical appliances.

[0013] Furthermore, it further includes a feeding mechanism. The feeding mechanism includes an installation groove, an outer installation frame, a material cylinder, and a feeding motor. The installation groove is opened on the left side surface of the first mold. The outer installation frame is arranged on the left side surface of the injection molding frame. A material cylinder is arranged inside the outer installation frame. The feeding port of the material cylinder is externally connected to an external hot melt material supply device. A feeding motor is provided on the left side surface of the material cylinder. The output shaft of the feeding motor is fixedly connected to the screw inside the material cylinder. The right end of the material cylinder extends to the outer arc surface of the first molding post platform. The input end of the feeding motor is electrically connected to the output end of the single-chip microcomputer, realizing the function of feeding.

[0014] Furthermore, it further includes a discharge hopper. The discharge hopper is arranged in the middle of the upper surface of the workbench, realizing the function of guiding the discharge.

[0015] Furthermore, it further includes a second telescopic spring. The second telescopic springs are evenly arranged between the right inner wall of the injection molding frame and the first deburring plate. The second telescopic springs are respectively movably sleeved on the left side of the outer arc surface of the sliding columns on the same side, providing power for the reset of the first deburring plate.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] By setting three die sets, during the production of a bi - optic lens, the thermoplastic material forms a sealed injection chamber on the outer arc surface of the first die and the right - hand side surface of the fillet groove. The bi - optic lens formed in this injection chamber has a flat surface formed by the fillet groove, and the flat surface of the bi - optic lens also presents a rounded shape. The docking method of the three die sets directly avoids docking with a cut surface to form a die groove, effectively preventing the possibility of burrs appearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three - dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a cross - sectional structural schematic diagram of the feeding mechanism of the present utility model;

[0020] Figure 3 is a structural schematic diagram of the anti - burr injection molding mechanism of the present utility model.

[0021] In the figure: 1 workbench, 2 injection molding frame, 3 sliding column, 4 anti - burr injection molding mechanism, 401 first anti - burr plate, 402 forming plate, 403 fillet groove, 404 second die, 405 dislocation plate, 406 first telescopic spring, 407 product ejection column, 408 avoidance groove, 409 ejection block, 410 return spring, 5 first die, 6 first forming column platform, 7 cold water circulation channel, 8 feeding mechanism, 81 installation groove, 82 outer installation frame, 83 barrel, 84 feeding motor, 9 single - chip microcomputer, 10 discharge hopper, 11 driving cylinder, 12 right - hand side ejector pin, 13 second telescopic spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-3 , this embodiment provides a technical solution: an automotive high - low beam bi - optic lens non - burr injection molding device, including a workbench 1 and an anti - burr injection molding mechanism 4; an injection molding frame 2 is provided on the upper surface of the workbench 1, and evenly distributed sliding columns 3 are fixedly connected between the left and right inner walls of the injection molding frame 2. A discharge hopper 10 is also included, and the discharge hopper 10 is arranged in the middle of the upper surface of the workbench 1. The formed bi - optic lens is discharged to the outside of the device along with the discharge hopper 10.

[0024] Among them, the anti-burr injection molding mechanism 4 includes a first anti-burr plate 401, a molding plate 402, a rounded corner groove 403, a second mold 404, a dislocation plate 405, and a first telescopic spring 406. The dislocation plates 405 are respectively slidably connected to the right outer arc surfaces of the four sliding columns 3. The right ends of the four dislocation plates 405 are fixedly connected to a molding plate 402. A second mold 404 is provided on the right side surface of the molding plate 402. The left outer arc surfaces of the four sliding columns 3 are respectively slidably connected to the four corners of a first anti-burr plate 401. A rounded corner groove 403 is provided on the right side surface of the first anti-burr plate 401. Uniformly distributed first telescopic springs 406 are provided between the right side surface of the first anti-burr plate 401 and the left side surfaces of the four dislocation plates 405. The four first telescopic springs 406 are respectively movably sleeved on the middle of the outer arc surfaces of the sliding columns 3 on the same side. The anti-burr injection molding mechanism 4 further includes a product ejection column 407, an avoidance groove 408, an ejection block 409, and a return spring 410. The product ejection column 407 is slidably connected to the middle of the right side surface of the second mold 404. An ejection block 409 is provided at the left end of the product ejection column 407. An avoidance groove 408 is formed in the middle of the interlayer of the second mold 404. The outer arc surface of the ejection block 409 is slidably connected to the inside of the avoidance groove 408. A return spring 410 is provided between the right side surface of the ejection block 409 and the right inner wall of the second mold 404. The outer arc surface of the product ejection column 407 is movably sleeved with the return spring 410. A right side ejector post 12 is provided in the middle of the right inner wall of the injection molding frame 2. The product ejection column 407 and the right side ejector post 12 are corresponding in the left-right position.

[0025] Among them, a driving cylinder 11 is further included. The driving cylinder 11 is arranged on the right side surface of the injection molding frame 2. The telescopic end of the driving cylinder 11 is fixedly connected to the right end of the second mold 404. The air inlet of the driving cylinder 11 is externally connected to an external air pump.

[0026] Among them, a first mold 5 is further included. The first mold 5 is arranged on the left inner wall of the injection molding frame 2. A first molding column platform 6 is provided on the right side surface of the first mold 5.

[0027] Among them, a cold water circulation channel 7 is further included. The cold water circulation channel 7 is arranged inside the first molding column platform 6. The water inlet and the water outlet of the cold water circulation channel 7 are respectively externally connected to an external cooling circulation mechanism.

[0028] Among them, a single-chip microcomputer 9 is further included. The single-chip microcomputer 9 is arranged at the front end of the workbench 1. The input end of the single-chip microcomputer 9 is electrically connected to an external power supply.

[0029] Among them, it further includes a feeding mechanism 8, which includes an installation groove 81, an outer mounting frame 82, a barrel 83 and a feeding motor 84. The installation groove 81 is opened on the left side surface of the first mold 5. The left side surface of the injection molding frame 2 is provided with an outer mounting frame 82. The inside of the outer mounting frame 82 is provided with a barrel 83. The feeding port of the barrel 83 is externally connected to an external hot melt material supply device. The left side surface of the barrel 83 is provided with a feeding motor 84. The output shaft of the feeding motor 84 is fixedly connected to the screw inside the barrel 83. The right end of the barrel 83 extends to the outer arc surface of the first forming column platform 6. The input end of the feeding motor 84 is electrically connected to the output end of the single-chip microcomputer 9.

[0030] Among them, it further includes a second telescopic spring 13, which is evenly arranged between the right inner wall of the injection molding frame 2 and the first anti-burr plate 401. The second telescopic springs 13 are respectively movably sleeved on the left side of the outer arc surface of the sliding columns 3 on the same side.

[0031] The working principle of the present utility model is as follows:

[0032] When double optical lens injection molding operation needs to be carried out, the external air pump can be adjusted to drive the cylinder 11 to operate. The telescopic end of the driving cylinder 11 extends, thereby driving the second mold 404 to move leftward until the left side surface of the forming plate 402 is tightly attached to the right side surface of the first anti-burr plate 401, and the left side surface of the first anti-burr plate 401 is tightly attached to the right side surface of the first mold 5. At this time, the first forming column platform 6 passes through the inside of the forming plate 402 and inserts into the inside of the second mold 404. At this time, a sealed injection molding chamber is formed by the inner arc surface of the second mold 404, the outer arc surface of the first mold 5 and the right side surface of the fillet groove 403. At this time, the external hot melt material supply device can be adjusted, and the hot melt material is input into the inside of the barrel 83. At this time, the single-chip microcomputer 9 is adjusted, and the feeding motor 84 operates. The output shaft of the feeding motor 84 rotates a specified number of turns, thereby driving the screw inside the barrel 83 to rotate a certain length, and then discharging a specified amount of hot melt material into the sealed injection molding chamber. At this time, the external cooling circulation mechanism can be adjusted, and cold water sequentially passes through the cold water circulation channel 7 to cool the thermoplastic material in the injection molding chamber;

[0033] After cooling is completed, the external air pump can be regulated to drive the telescopic end of the cylinder 11 to contract. The elastic potential energy of the second telescopic spring 13 is greater than the elastic potential energy of the first telescopic spring 406. Therefore, during the contraction process of the telescopic end of the driving cylinder 11, the first forming column 6 will first slowly withdraw from the inside of the second mold 404, but the first anti-burr plate 401 will still fit into the forming plate 402 and move to the right. After the first forming column 6 withdraws from the inside of the second mold 404, it will be affected by the elastic potential energy of the first telescopic spring 406, and the first anti-burr plate 401 will stop at the specified position, and the second mold 404 will still move to the right. The left side of the formed bifocal lens leaves the inside of the rounded groove 403 because it is affected by The rounded groove 403, the second mold 404 and the first molding column base 6 are tightly sealed, and no large gap is generated, thereby avoiding the generation of burrs. As the second mold 404 continues to move to the right, it will be affected by the elastic potential energy of the return spring 410, and the right side of the product ejection column 407 contacts the left side of the right ejector column 12, thereby driving the ejection block 409 to push into the interior of the second mold 404, ejecting the molded bifocal lens from the second mold 404, and discharging it to the outside of the equipment along the discharge hopper 10, completing the bifocal lens injection operation, and then the second mold 404 moves to the left. During this process, it will be affected by the elastic potential energy of the return spring 410, and the ejection block 409 will retract to the inside of the avoidance groove 408.

[0034] It is worth noting that the single-chip microcomputer 9 disclosed in the above embodiment is specifically model S7-200, and the feeding motor 84 can be freely configured according to the actual application scenario. It is recommended to use SHJ20 single-screw barrel for the barrel 83, and MT series spiral motor for the feeding motor 84. The single-chip microcomputer 9 controls the feeding motor 84 using methods commonly used in the prior art.

[0035] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An injection molding device without burrs for the dual-beam lens of the high and low beam headlights of an automobile, characterized in that: It includes a workbench (1) and a deburring injection molding mechanism (4); An injection molding frame (2) is provided on the upper surface of the workbench (1), and evenly distributed sliding columns (3) are fixedly connected between the left and right inner walls of the injection molding frame (2); The deburring injection molding mechanism (4) includes a first deburring plate (401), a molding plate (402), a rounded corner groove (403), a second mold (404), a displacement plate (405) and a first telescopic spring (406). The displacement plates (405) are respectively slidably connected to the right outer arc surfaces of the four sliding columns (3). The right ends of the four displacement plates (405) are fixedly connected to a molding plate (402). A second mold (404) is provided on the right side surface of the molding plate (402). The left outer arc surfaces of the four sliding columns (3) are slidably connected to the four corners of a first deburring plate (401). A rounded corner groove (403) is provided on the right side surface of the first deburring plate (401). Uniformly distributed first telescopic springs (406) are provided between the right side surface of the first deburring plate (401) and the left side surfaces of the four displacement plates (405). The four first telescopic springs (406) are respectively movably sleeved on the middle parts of the outer arc surfaces of the sliding columns (3) on the same side.

2. The burr-free injection molding equipment for the automotive high and low beam bi-xenon lens according to claim 1, wherein: The deburring injection molding mechanism (4) further includes a product ejection column (407), an avoidance groove (408), an ejection block (409) and a return spring (410). The product ejection column (407) is slidably connected to the middle of the right side surface of the second mold (404). An ejection block (409) is provided at the left end of the product ejection column (407). An avoidance groove (408) is opened in the middle of the sandwich layer of the second mold (404). The outer arc surface of the ejection block (409) is slidably connected to the inside of the avoidance groove (408). A return spring (410) is provided between the right side surface of the ejection block (409) and the right inner wall of the second mold (404). The outer arc surface of the product ejection column (407) is movably sleeved with the return spring (410). A right side ejector post (12) is provided in the middle of the right inner wall of the injection molding frame (2). The product ejection column (407) and the right side ejector post (12) are corresponding in left and right positions.

3. The double - light lens injection - molding device for automotive high - and low - beam lights without burrs according to claim 1, wherein: It further includes a driving cylinder (11). The driving cylinder (11) is arranged on the right side surface of the injection molding frame (2). The telescopic end of the driving cylinder (11) is fixedly connected to the right end of the second mold (404). The air inlet of the driving cylinder (11) is externally connected to an external air pump.

4. A burr-free injection molding device for automotive high and low beam dual-light lenses according to claim 1, characterized in that: It further includes a first mold (5). The first mold (5) is arranged on the left inner wall of the injection molding frame (2). A first molding column platform (6) is provided on the right side surface of the first mold (5).

5. The injection molding equipment for the biconvex lens of the high and low beam headlights of an automobile without burrs according to claim 4, characterized in that: It further includes a cold water circulation channel (7). The cold water circulation channel (7) is arranged inside the first molding column platform (6). The water inlet and the water outlet of the cold water circulation channel (7) are respectively externally connected to an external cooling circulation mechanism.

6. The injection molding equipment for the burr-free dual-beam lens of automotive high and low beam lights according to claim 4, characterized in that: It further includes a single-chip microcomputer (9). The single-chip microcomputer (9) is arranged at the front end of the workbench (1). The input end of the single-chip microcomputer (9) is electrically connected to an external power supply.

7. An injection molding device without burrs for the dual-beam lens of the high and low beam headlights of an automobile according to claim 6, characterized in that: It further includes a feeding mechanism (8), and the feeding mechanism (8) includes an installation groove (81), an outer mounting frame (82), a barrel (83) and a feeding motor (84). The installation groove (81) is formed in the left side surface of the first mold (5). The outer mounting frame (82) is provided on the left side surface of the injection molding frame (2). The barrel (83) is arranged inside the outer mounting frame (82). The feeding port of the barrel (83) is connected to an external hot melt material supply device. The feeding motor (84) is provided on the left side surface of the barrel (83). The output shaft of the feeding motor (84) is fixedly connected to a screw rod inside the barrel (83). The right end of the barrel (83) extends to the outer arc surface of the first forming column platform (6). The input end of the feeding motor (84) is electrically connected to the output end of the single-chip microcomputer (9).

8. An injection molding device without burrs for the dual-beam lens of the high and low beam headlights of an automobile according to claim 1, characterized in that: It further includes a discharge hopper (10), and the discharge hopper (10) is arranged in the middle of the upper surface of the workbench (1).

9. The burr-free injection molding equipment for the automotive high and low beam bi-xenon lens according to claim 1, characterized in that: It further includes a second telescopic spring (13), and the second telescopic springs (13) are evenly arranged between the right inner wall of the injection molding frame (2) and the first anti-burr plate (401). The second telescopic springs (13) are respectively sleeved on the left side of the outer arc surface of the sliding columns (3) on the same side in a movable manner.

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