A two-color mold for producing structural parts of a laptop, which is convenient for precise control

Abstract

The present invention discloses a two-color mold for the production of laptop computer structural parts that is easy to accurately control, and relates to the field of two-color molds, including a lower base, a turntable, a shaft rod, an upper base and a positioning mechanism, wherein the turntable is rotatably arranged on the lower base through the shaft rod, the upper surface of the turntable is symmetrically equipped with molds, and the upper base is connected to the lower base through rods; the positioning mechanism is composed of a plug-in assembly, an ejection assembly, a vertical rod, a transmission shaft and a transmission structure; an arc groove is opened on one side of the upper surface of the lower base, the plug-in assembly matches the arc groove, the ejection assembly is arranged at the terminal bottom of the arc groove, a pressure sensor is embedded on the bottom surface of the starting end of the arc groove, and the ejection assembly, the vertical rod, the transmission shaft and the shaft rod are connected by a transmission structure. The present application does not need to worry about the light refraction and brightness reduction caused by lubricating oil, and the rotation positioning accuracy can be ensured through the structure, thereby ensuring the injection molding efficiency of the laptop computer structural parts.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of two-color molds, and specifically to a two-color mold for producing notebook computer structural parts that is convenient for precise control. Background Technique

[0002] When producing notebook computers, many different structural parts can be produced using two-color molds, such as casings, keyboards, touchscreens, etc. A two-color mold allows two different plastic materials to be injection-molded on the same injection molding machine, usually divided into two molding steps, but the product is demolded only once. This type of mold requires a dedicated two-color injection molding machine with two sets of injection systems.

[0003] A mold for two-color injection molding described in the prior art includes an upper mold, a lower mold, a lower base, a turntable, a rotary drive mechanism, a locking mechanism, and a control module. The rotary drive mechanism is connected to the turntable. The turntable is located between the lower base and a balancing member, and the turntable is rotatably connected to the balancing member. An arc-shaped groove is provided on the turntable, a light-transmitting body is provided in the arc-shaped groove, a first detection unit corresponding to the arc-shaped groove is provided on the balancing member, and a light source is provided on the lower base.

[0004] Although the above technology can achieve precise rotation and stopping of the turntable based on optical signals, improving the efficiency and stability of the device for swapping the positions of the molds, the turntable moves on the base. To reduce wear, lubricating oil needs to be manually applied to the contact part, and during rotation, the lubricating oil will be carried into the optical path channel, forming an oil film on the beam splitter and the light source, hindering the dissipation of the heat of the light source, and at the same time changing the refraction of light, reducing the brightness, thereby reducing the positioning accuracy of rotation and affecting the injection molding efficiency of the structural parts. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a two-color mold for producing notebook computer structural parts that is convenient for precise control, so as to solve the technical problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution:

[0007] A two-color mold for producing notebook computer structural parts that is convenient for precise control, including a lower base, a turntable, a shaft rod, an upper base, and a positioning mechanism. The turntable is rotatably arranged on the lower base through the shaft rod. Molds are symmetrically installed on the upper surface of the turntable. The upper base is connected to the lower base through a rod member.

[0008] The positioning mechanism is composed of a plugging component, an ejecting component, a vertical rod, a transmission shaft, and a transmission structure.

[0009] An arc groove is opened on one side of the upper surface of the lower base, the plug-in assembly matches the arc groove, the ejection assembly is arranged at the terminal bottom of the arc groove, a pressure sensor is embedded in the bottom surface of the starting end of the arc groove, and the ejection assembly, the vertical rod, the transmission shaft and the shaft rod are connected through a transmission structure.

[0010] The technical solution is specific, the upper surface of the lower base is provided with a groove, the shaft rod is rotatably installed in the groove, the lower surface of the turntable is located on one side of the two molds and is provided with a receiving groove, the two side groove walls of the two receiving grooves are provided with limiting grooves, the plug-in component is located in the receiving groove, the plug-in component includes a lower pressure plate, both ends of the lower pressure plate are located in the limiting grooves, a plug-in block is fixedly installed at the center of the lower surface of the lower pressure plate, and the bottom end of the plug-in block passes through the receiving groove and matches the arc groove.

[0011] Specifically, the present technical solution is that a guide rod is fixed in each of the limiting grooves, each of the guide rods passes through the two ends of the lower pressure plate, a contraction spring is sleeved on the bottom of each guide rod, and the two ends of each contraction spring are respectively fixedly connected to the lower surface of the lower pressure plate and the bottom of the limiting groove, a first ball is embedded in the bottom end of the plug-in block, and the tops of the groove walls at both ends of the arc groove are set to first chamfers.

[0012] Specifically, the bottom of the arc-shaped groove is concave, a collecting groove is provided at the concave part of the bottom of the arc-shaped groove, a protective net is installed on the top of the collecting groove, the bottom of the collecting groove is connected with the outside through a conduit, and a telescopic baffle is provided at the terminal top of the arc-shaped groove.

[0013] The technical solution is specific, a driving cavity is opened inside the lower base below the terminal end of the arc groove, the ejection assembly is arranged in the driving cavity, the ejection assembly includes a driving motor arranged in the mounting block, the output end of the driving motor is inserted into the driving cavity and fixed with a rotating shaft, a lead screw is installed on the top end of the rotating shaft through a magnetic coupler, a sleeve is sleeved on the lead screw, the top of the sleeve passes through the driving cavity and extends into the arc groove, and the top end of the sleeve matches the plug-in block arranged in the plug-in assembly.

[0014] The technical solution is specific, slide rods are fixed on both sides of the driving cavity, a movable plate is fixed on the outer wall of the bottom end of the sleeve, both ends of the movable plate are slidably mounted on the slide rods, a cavity is opened inside the lower base on one side of the driving cavity, the cavity and the driving cavity are connected by a square through hole, the vertical rod and the transmission shaft are rotatably installed on the bottom and top of the cavity respectively, the outer wall of the vertical rod and the outer wall of the rotating shaft are fixed with a first transmission wheel, the two first transmission wheels are connected by a first transmission chain, the first transmission chain slides along the hole wall of the square through hole, and the top outer wall of the vertical rod is provided with two telescopic clamping blocks.

[0015] Specifically, in this technical solution, two upper and lower moving grooves are formed in the outer wall of the vertical rod. An active plate is movably installed in each of the two moving grooves. One end of each of the two clamping blocks is inserted into the moving groove and welded to the active plate. A support spring is provided on the other side of each of the two active plates. Both ends of the two support springs are fixedly connected to the surface of the active plate and the wall of the moving groove respectively. A second ball is embedded in the end face of each of the two clamping blocks.

[0016] Specifically, in this technical solution, the diameter of the transmission shaft is larger than that of the vertical rod. A slot is formed at the bottom end of the transmission shaft. The top end of the vertical rod is inserted into the slot and is rotatably connected. Two upper and lower clamping grooves are formed inside the slot. The ends of the two clamping blocks are respectively matched with the clamping grooves. The chamfers at one corner of the end face of each of the two clamping blocks and the wall of each of the two clamping grooves are set to be matched second chamfers.

[0017] Specifically, in this technical solution, the groove is communicated with the cavity through a square through hole. Second transmission wheels are fixedly installed on both the shaft rod and the vertical rod. The two second transmission wheels are driven and connected by a second transmission chain. The second transmission chain slides along the wall of the square through hole.

[0018] Specifically, in this technical solution, a main control board is provided inside the lower base. The pressure sensor and the driving source of the ejecting assembly are both electrically connected to the main control board.

[0019] In summary, the present invention mainly has the following beneficial effects: This application does not need to worry about the light refraction and brightness reduction caused by lubricating oil. The structure can ensure the positioning accuracy of rotation and guarantee the injection molding efficiency of the structural parts of the notebook computer.

[0020] First, when the turntable rotates to replace the positions of the two molds, the driving motor in the ejecting assembly works. The rotating shaft drives the lead screw to rotate, so that the sleeve moves upward following the rotation of the lead screw under the restriction of the moving plate and the sliding rod. At this time, the rotating shaft will also drive the vertical rod to rotate through the first transmission wheel and the first transmission chain. With the rotation of the vertical rod, the clamping block will move out of the clamping groove under the action of the second chamfer, and the support spring will be compressed through the active plate, without driving the rotating shaft to rotate. The upward moving sleeve pushes the plug block to move. The plug block stretches the contraction spring through the lower pressing plate until the plug block moves to the top of the arc-shaped groove. At this time, the telescopic baffle extends to be located at the top of the sleeve and the bottom of the plug block and contacts the first ball.

[0021] Next, the driving motor works in reverse. The reverse rotation of the lead screw drives the sleeve to move downward and retract. And through the first driving wheel and the first driving chain, it drives the vertical rod to rotate in reverse. When the clamping block is inserted into the clamping groove, it drives the transmission shaft to rotate synchronously. The transmission shaft drives the shaft rod to rotate through the second driving wheel and the second driving chain, so that the shaft rod drives the turntable to rotate. The turntable drives the retracted insertion block to move. The first ball completely moves out of the arc groove under the action of the telescopic baffle and the first chamfer.

[0022] Finally, when the insertion block on the other side moves to the starting end of the arc groove as the turntable rotates, the compression spring releases pressure, so that the insertion block is inserted into the arc groove and contacts the pressure sensor. After the pressure sensor detects the pressure, it sends a signal to the main control board. The main control board controls the driving motor to reduce the speed until the insertion block moves along the arc groove to the terminal. When the side wall of the insertion block pushes the telescopic baffle to contract and move to the groove wall and receives resistance, the driving motor stops working, and the positions of the two molds are interchanged to complete the positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the two-color mold of the present invention;

[0024] Figure 2 It is a schematic diagram of the lower base of the present invention;

[0025] Figure 3 It is a top view cross-sectional view of the lower base of the present invention;

[0026] Figure 4 It is a front view cross-sectional view of the present invention;

[0027] Figure 5 It is an enlarged view of part A of the present invention;

[0028] Figure 6 It is a schematic diagram of the ejection assembly of the present invention;

[0029] Figure 7 It is an exploded view of the vertical rod and the transmission shaft of the present invention;

[0030] Figure 8 It is a side view cross-sectional view of the transmission shaft of the present invention.

[0031] Description of the Drawings: 1. Lower base; 101. Arc-shaped groove; 1011. First chamfer; 1012. Telescopic baffle; 102. Driving cavity; 103. Cavity; 104. Groove; 1041. Shaft rod; 105. Pressure sensor; 106. Collection groove; 107. Mounting block; 2. Turntable; 201. Mold; 202. Storage groove; 2021. Limiting groove; 3. Upper base; 4. Positioning mechanism; 5. Insertion assembly; 501. Lower pressing plate; 5011. Guide rod; 502. Compression spring; 503. Insertion block; 5031. First ball; 6. Ejection assembly; 601. Driving motor; 602. Rotating shaft; 603. Lead screw; 604. Sleeve; 6041. Moving plate; 605. Slide bar; 606. Magnetic coupling; 7. Vertical rod; 701. Moving groove; 702. First driving wheel; 7021. First driving chain; 8. Transmission shaft; 801. Second driving wheel; 8011. Second driving chain; 802. Clamping groove; 803. Slot; 9. Clamping block; 901. Movable plate; 902. Support spring; 903. Second ball; 10. Second chamfer. Detailed implementation manners

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0033] The following will describe the embodiments according to the overall structure of the present invention.

[0034] Embodiment

[0035] The main control board in this application is controlled by wireless signals or wires with an external controller, and is automatically controlled by the program in the controller. One end of the telescopic baffle 1012 is located inside the lower base 1 and is controlled to expand and contract through a spring.

[0036] Please refer to Figure 1-4As shown, a two-color mold for the production of notebook computer structural parts that is easy to control accurately includes a lower base 1, a turntable 2, a shaft 1041, an upper base 3 and a positioning mechanism 4. The turntable 2 is rotatably arranged on the lower base 1 through the shaft 1041. The mold 201 is symmetrically installed on the upper surface of the turntable 2. The upper base 3 is connected to the lower base 1 through a rod. A groove 104 is opened on the upper surface of the lower base 1. The shaft 1041 is rotatably installed in the groove 104. The turntable 2 The lower surface of the two molds 201 is provided with a receiving groove 202 on one side, and the two side walls of the two receiving grooves 202 are provided with a limiting groove 2021. The plug-in component 5 is located in the receiving groove 202. The plug-in component 5 includes a lower pressing plate 501, and both ends of the lower pressing plate 501 are located in the limiting groove 2021. A plug-in block 503 is fixedly installed at the center of the lower surface of the lower pressing plate 501, and the bottom end of the plug-in block 503 passes through the receiving groove 202 and matches the arc groove 101;

[0037] The positioning mechanism 4 is composed of a plug-in component 5, an ejection component 6, a vertical rod 7, a transmission shaft 8 and a transmission structure. An arc groove 101 is provided on one side of the upper surface of the lower base 1. The plug-in component 5 matches the arc groove 101. The ejection component 6 is arranged at the terminal bottom of the arc groove 101. A pressure sensor 105 is embedded on the bottom surface of the starting end of the arc groove 101. The ejection component 6, the vertical rod 7, the transmission shaft 8 and the shaft rod 1041 are connected by a transmission structure. The bottom of the arc groove 101 is concave. A collecting groove 106 is provided at the concave part of the bottom of the arc groove 101. A protective net is installed on the top of the collecting groove 106. The bottom of the collecting groove 106 is connected to the outside through a conduit. A telescopic baffle 1012 is provided on the terminal top of the arc groove 101, wherein the collecting groove 106 can collect the lubricating oil entering the arc groove 101 and discharge it through the conduit.

[0038] A guide rod 5011 is fixed in each of the limiting grooves 2021, and each of the guide rods 5011 passes through both ends of the lower pressure plate 501. A contraction spring 502 is sleeved on the bottom of each of the guide rods 5011, and both ends of each of the contraction springs 502 are respectively fixedly connected to the lower surface of the lower pressure plate 501 and the bottom of the limiting groove 2021. A first ball 5031 is embedded in the bottom end of the plug-in block 503, and the tops of the groove walls at both ends of the arc groove 101 are set as first chamfers 1011. A main control board is provided inside the lower base 1, and the driving sources of the pressure sensor 105 and the ejection assembly 6 are electrically connected to the main control board.

[0039] When producing the structural parts of the notebook computer in the note version, the staff installs the two-color mold on the injection molding machine. The installation method adopts the existing technology and will not be elaborated. When the injection molding of one mold 201 is completed and it is necessary to rotate to the position of another mold 201 for position replacement, a signal is sent in the controller to start the main control board. After receiving the signal, the main control board starts the drive source in the ejector assembly 6. The drive source drives the execution end of the ejector assembly 6 to move upward and drives the vertical rod 7 to rotate, pushing the insertion block 503 at the end of the arc-shaped groove 101, so that the insertion block 503 moves upward. The insertion block 503 stretches the compression spring 502 through the lower pressing plate 501 until the insertion block 503 moves to the top of the arc-shaped groove 101. At this time, the telescopic baffle 1012 extends between the top of the execution end of the ejector assembly 6 and the bottom of the insertion block 503 and contacts the first ball 5031;

[0040] Then the drive source of the ejector assembly 6 works in reverse, causing the execution end to move downward. Since the insertion block 503 will not move downward due to the telescopic baffle 1012, the vertical rod 7 rotates in the reverse direction and drives the transmission shaft 8 to rotate through the clamping structure. The transmission shaft 8 drives the shaft rod 1041 to rotate through the transmission structure, so that the shaft rod 1041 drives the turntable 2 to rotate. The turntable 2 drives the retracted insertion block 503 to move, and the insertion block 503 is completely moved out of the arc-shaped groove 101 under the action of the first ball 5031 on the telescopic baffle 1012 and the first chamfer 1011;

[0041] Finally, when the insertion block 503 on the other side moves to the starting end of the arc-shaped groove 101 as the turntable 2 rotates, the compression spring 502 releases pressure, so that the insertion block 503 is inserted into the arc-shaped groove 101 and contacts the pressure sensor 105. After detecting the pressure, the pressure sensor 105 sends a signal to the main control board. The main control board controls the drive source of the ejector assembly 6 to decelerate until it stops. Until the insertion block 503 moves along the arc-shaped groove 101 to the end, the side wall of the insertion block 503 pushes the telescopic baffle 1012 to contract and receives resistance after moving to the groove wall. At this time, the drive source stops working, and the positions of the two molds 201 are interchanged to complete the positioning. Therefore, this application does not need to worry about the light refraction and brightness reduction caused by the lubricating oil. Through the structure, the positioning accuracy of the rotation can be ensured, and the injection molding efficiency of the structural parts of the notebook computer can be guaranteed.

[0042] Please refer to Figure 4-8As shown in the figure, a driving cavity 102 is opened inside the lower base 1 below the terminal of the arc-shaped groove 101. The ejecting component 6 is arranged in the driving cavity 102. The ejecting component 6 includes a driving motor 601 arranged in the mounting block 107. The output end of the driving motor 601 is inserted into the driving cavity 102 and a rotating shaft 602 is fixed. The top end of the rotating shaft 602 is provided with a lead screw 603 through a magnetic coupler 606. A sleeve 604 is sleeved on the lead screw 603. The top of the sleeve 604 passes through the driving cavity 102 and extends into the arc-shaped groove 101, and the top end of the sleeve 604 matches the inserting block 503 arranged in the inserting component 5. Slide rods 605 are fixed on both sides of the driving cavity 102. A moving plate 6041 is fixed on the outer wall of the bottom end of the sleeve 604. Both ends of the moving plate 6041 are slidably sleeved on the slide rods 605. A cavity 103 is opened inside the lower base 1 on one side of the driving cavity 102. The cavity 103 is connected to the driving cavity 102 through a square through hole. The vertical rod 7 and the transmission shaft 8 are respectively rotatably installed at the bottom and top of the cavity 103. First transmission wheels 702 are fixed on the outer walls of the vertical rod 7 and the rotating shaft 602. The two first transmission wheels 702 are connected by a first transmission chain 7021. The first transmission chain 7021 slides along the hole wall of the square through hole. Two telescopic clamping blocks 9 are arranged on the outer wall of the top of the vertical rod 7;

[0043] Two upper and lower moving grooves 701 are opened on the outer wall of the vertical rod 7. Moving plates 901 are movably installed in the two moving grooves 701. One end of each of the two clamping blocks 9 is inserted into the moving groove 701 and welded to the moving plate 901. Support springs 902 are arranged on the other sides of the two moving plates 901. Both ends of the two support springs 902 are respectively fixed to the plate surface of the moving plate 901 and the groove wall of the moving groove 701. Second balls 903 are embedded in the end faces of the two clamping blocks 9;

[0044] The diameter of the transmission shaft 8 is larger than that of the vertical rod 7. A slot 803 is opened at the bottom end of the transmission shaft 8. The top end of the vertical rod 7 is inserted into the slot 803 and is rotatably connected. Two upper and lower clamping grooves 802 are opened inside the slot 803. The end parts of the two clamping blocks 9 match the clamping grooves 802. The chamfers at one side corner of the end faces of the two clamping blocks 9 and the groove walls of the two clamping grooves 802 are set to be matching second chamfers 10. The groove 104 is connected to the cavity 103 through a square through hole. Second transmission wheels 801 are fixedly installed on both the shaft rod 1041 and the vertical rod 7. The two second transmission wheels 801 are connected by a second transmission chain 8011. The second transmission chain 8011 slides along the hole wall of the square through hole.

[0045] When rotating the two molds 201, the drive motor 601 in the ejector assembly 6 is working, and its output end drives the rotating shaft 602 to rotate. The rotating shaft 602 drives the lead screw 603 to rotate. At the same time, it also drives the vertical rod 7 to rotate through the first transmission wheel 702 and the first transmission chain 7021. The lead screw 603 causes the sleeve 604 to move upward under the restriction of the moving plate 6041 and the slide bar 605. The upward-moving sleeve 604 pushes the first ball 5031, and then pushes the plug-in block 503 upward. When the vertical rod 7 rotates in the slot 803, it drives the two clamping blocks 9 to move. Under the action of the second chamfer 10, the two clamping blocks 9 move out of the clamping groove 802, and the two clamping blocks 9 move into the moving groove 701 and push the movable plate 901. The movable plate 901 squeezes the support spring 902, and the two clamping blocks 9 move along the slot 803 through the second ball 903 as the vertical rod 7 rotates, thereby preventing the transmission shaft 8 from rotating along with the vertical rod 7 when the sleeve 604 moves upward;

[0046] Then the drive motor 601 works in reverse, driving the rotating shaft 602 to rotate in reverse. At this time, the sleeve 604 follows the rotation of the lead screw 603 and descends, while the vertical rod 7 drives the retracted clamping blocks 9 to rotate in reverse in the slot 803. When the clamping blocks 9 pass through the clamping groove 802, the support spring 902 pushes the movable plate 901 to insert the clamping blocks 9 into the clamping groove 802, so that the right-angle ends of the clamping blocks 9 and the clamping groove 802 are in contact. As the vertical rod 7 rotates in reverse, the transmission shaft 8 is driven to rotate through the clamping blocks 9 and the clamping groove 802. The transmission shaft 8 drives the shaft rod 1041 to rotate through the second transmission wheel 801 and the second transmission sprocket 8011, so that the shaft rod 1041 drives the turntable 2 to rotate on the lower base 1. And under the action of the magnetic coupling 606, after the sleeve 604 moves downward and resets, it will not interfere with the rotation of the rotating shaft 602 and the shaft rod 1041.

[0047] The working principle of the present invention is:

[0048] When producing the structural parts of a notebook computer, the staff installs the two-color mold on the injection molding machine. The installation method adopts the existing technology and will not be elaborated here. After the injection molding of one mold 201 is completed and it is necessary to rotate to the position of another mold 201 for position replacement, a signal is sent in the controller to start the main control board. After receiving the signal, the main control board starts the drive motor 601 in the ejection assembly 6 to work. The output end of the drive motor drives the rotating shaft 602 to rotate. The rotating shaft 602 drives the lead screw 603 to rotate. At the same time, it also drives the vertical rod 7 to rotate through the first transmission wheel 702 and the first transmission chain 7021. The lead screw 603 causes the sleeve 604 to move upward under the restriction of the moving plate 6041 and the sliding rod 605. The upward-moving sleeve 604 pushes the first ball 5031, and then pushes the insertion block 503 upward. The insertion block 503 stretches the compression spring 502 through the lower pressing plate 501 until the insertion block 503 moves to the top of the arc-shaped groove 101. At this time, the telescopic baffle 1012 extends between the top of the sleeve 604 and the bottom of the insertion block 503 and contacts the first ball 5031;

[0049] When the vertical rod 7 rotates in the slot 803, it drives the two clamping blocks 9 to move. Under the action of the second chamfer 10, the two clamping blocks 9 move out of the clamping groove 802. The two clamping blocks 9 move into the moving groove 701 and push the movable plate 901. The movable plate 901 squeezes the support spring 902. And the two clamping blocks 9 move along the slot 803 through the second ball 903 as the vertical rod 7 rotates, thus preventing the transmission shaft 8 from rotating with the vertical rod 7 when the sleeve 604 moves upward;

[0050] Then the drive motor 601 works in the reverse direction, driving the rotating shaft 602 to rotate in the reverse direction. At this time, the sleeve 604 follows the rotation of the lead screw 603 and descends. The vertical rod 7 drives the contracted clamping blocks 9 to rotate in the reverse direction in the slot 803. When the clamping blocks 9 pass through the clamping groove 802, the support spring 902 pushes the movable plate 901 to make the clamping blocks 9 insert into the clamping groove 802, so that the right-angle ends of the clamping blocks 9 and the clamping groove 802 are in contact. As the vertical rod 7 rotates in the reverse direction, the transmission shaft 8 is driven to rotate through the clamping blocks 9 and the clamping groove 802. The transmission shaft 8 drives the shaft rod 1041 to rotate through the second transmission wheel 801 and the second transmission sprocket 8011, so that the shaft rod 1041 drives the turntable 2 to rotate on the lower base 1. The turntable 2 drives the contracted insertion block 503 to move, and completely moves out of the arc-shaped groove 101 under the action of the first ball 5031 on the telescopic baffle 1012 and the first chamfer 1011;

[0051] Finally, when the plug-in block 503 on the other side moves to the starting end of the arc-shaped groove 101 as the turntable 2 rotates, the compression spring 502 releases pressure, causing the plug-in block 503 to insert into the arc-shaped groove 101 and contact the pressure sensor 105. After the pressure sensor 105 detects the pressure, it sends a signal to the main control board. The main control board controls the drive source of the ejecting assembly 6 to decelerate until it stops. Until the plug-in block 503 moves along the arc-shaped groove 101 to the terminal, the side wall of the plug-in block 503 pushes the telescopic baffle 1012 to contract and receives resistance after moving to the groove wall. At this time, the drive source stops working, and the positions of the two molds 201 are interchanged to complete the positioning.

[0052] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and not limitations thereof. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions, and variations that do not contribute creatively to the embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A two-color mold for producing laptop computer structural parts that is easy to control accurately, comprising a lower base (1), a turntable (2), a shaft (1041), an upper base (3) and a positioning mechanism (4), characterized in that The turntable (2) is rotatably arranged on the lower base (1) via a shaft (1041), a mold (201) is symmetrically mounted on the upper surface of the turntable (2), and the upper base (3) is connected to the lower base (1) via a rod; The positioning mechanism (4) is composed of a plug-in assembly (5), an ejection assembly (6), a vertical rod (7), a transmission shaft (8) and a transmission structure; An arc-shaped groove (101) is provided on one side of the upper surface of the lower base (1), the plug-in assembly (5) matches the arc-shaped groove (101), the ejection assembly (6) is arranged at the terminal bottom of the arc-shaped groove (101), a pressure sensor (105) is embedded on the bottom surface of the starting end of the arc-shaped groove (101), and the ejection assembly (6), the vertical rod (7), the transmission shaft (8) and the shaft rod (1041) are connected by a transmission structure; A driving cavity (102) is provided inside the lower base (1) and below the terminal end of the arc-shaped groove (101). The ejection assembly (6) is arranged in the driving cavity (102). The ejection assembly (6) comprises a driving motor (601) arranged in a mounting block (107). The output end of the driving motor (601) is inserted into the driving cavity (102) and fixed with a rotating shaft (602). A lead screw (603) is installed at the top end of the rotating shaft (602) via a magnetic coupler (606). A sleeve (604) is sleeved on the lead screw (603). The top of the sleeve (604) passes through the driving cavity (102) and extends into the arc-shaped groove (101). The top end of the sleeve (604) matches with a plug-in block (503) provided in the plug-in assembly (5).

2. A two-color mold for producing notebook computer structural parts that is easy to control accurately according to claim 1, characterized in that: The upper surface of the lower base (1) is provided with a groove (104), and the shaft (1041) is rotatably installed in the groove (104). The lower surface of the turntable (2) is located on one side of the two molds (201) and is provided with a receiving groove (202). The two side groove walls of the two receiving grooves (202) are provided with limiting grooves (2021). The plug-in component (5) is located in the receiving groove (202), and the plug-in component (5) includes a lower pressure plate (501), both ends of the lower pressure plate (501) are located in the limiting groove (2021), and a plug-in block (503) is fixedly installed at the center of the lower surface of the lower pressure plate (501), and the bottom end of the plug-in block (503) passes through the receiving groove (202) and matches the arc groove (101).

3. The two-color mold for producing notebook computer structural parts that is easy to control accurately according to claim 2 is characterized in that: A guide rod (5011) is fixed in each of the limiting grooves (2021), and each of the guide rods (5011) passes through both ends of the lower pressure plate (501). A contraction spring (502) is sleeved on the bottom of each of the guide rods (5011), and both ends of each of the contraction springs (502) are respectively fixedly connected to the lower surface of the lower pressure plate (501) and the bottom of the limiting groove (2021). A first ball (5031) is embedded in the bottom end of the plug-in block (503), and the tops of the groove walls at both ends of the arc groove (101) are set as first chamfers (1011).

4. The two-color mold for producing notebook computer structural parts that is easy to control accurately according to claim 1 is characterized in that: The bottom of the arc-shaped groove (101) is concave, a collecting groove (106) is provided at the concave portion of the bottom of the arc-shaped groove (101), a protective net is installed on the top of the collecting groove (106), the bottom of the collecting groove (106) is connected to the outside through a conduit, and a telescopic baffle (1012) is provided at the top of the terminal of the arc-shaped groove (101).

5. The two-color mold for producing notebook computer structural parts that is easy to control accurately according to claim 1, characterized in that: Slide bars (605) are fixed on both sides of the driving cavity (102), a movable plate (6041) is fixed on the outer wall of the bottom end of the sleeve (604), and both ends of the movable plate (6041) are slidably mounted on the slide bars (605). A cavity (103) is provided inside the lower base (1) on one side of the driving cavity (102), and the cavity (103) is connected to the driving cavity (102) via a square through hole. The vertical rod (7) and the transmission shaft (8) are rotatably mounted on the bottom and top of the cavity (103) respectively. The outer wall of the vertical rod (7) and the outer wall of the rotating shaft (602) are fixed with a first transmission wheel (702), and the two first transmission wheels (702) are connected by a first transmission chain (7021). The first transmission chain (7021) slides along the hole wall of the square through hole, and the top outer wall of the vertical rod (7) is provided with two telescopic clamping blocks (9).

6. The two-color mold for producing notebook computer structural parts that is easy to control accurately according to claim 5, characterized in that: The outer wall of the vertical rod (7) is provided with two upper and lower movable grooves (701), and a movable plate (901) is movably installed in the two movable grooves (701). One end of the two clamping blocks (9) is inserted into the movable groove (701) and welded to the movable plate (901), and the other side of the two movable plates (901) is provided with a supporting spring (902), and the two ends of the two supporting springs (902) are respectively fixedly connected to the plate surface of the movable plate (901) and the groove wall of the movable groove (701), and the end faces of the two clamping blocks (9) are embedded with a second ball (903).

7. The two-color mold for producing notebook computer structural parts that is easy to control accurately according to claim 5, characterized in that: The diameter of the transmission shaft (8) is larger than the diameter of the vertical rod (7); a slot (803) is provided at the bottom end of the transmission shaft (8); the top end of the vertical rod (7) is inserted into the slot (803) and is rotatably connected; two upper and lower clamping grooves (802) are provided inside the slot (803); the ends of the two clamping blocks (9) are matched with the clamping grooves (802); and the corners on one side of the end faces of the two clamping blocks (9) and the groove walls of the two clamping grooves (802) are arranged to be matched with second chamfers (10).

8. The two-color mold for producing notebook computer structural parts that is easy to control accurately according to claim 2, characterized in that: The groove (104) is connected to the cavity (103) via a square through hole, and a second transmission wheel (801) is fixedly mounted on the shaft rod (1041) and the vertical rod (7). The two second transmission wheels (801) are connected via a second transmission chain (8011), and the second transmission chain (8011) slides along the hole wall of the square through hole.

9. The two-color mold for producing notebook computer structural parts that is easy to control accurately according to claim 1, characterized in that: A main control board is provided inside the lower base (1), and the driving source of the pressure sensor (105) and the ejection assembly (6) are both electrically connected to the main control board.

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