Injection molding device for industrial instrument shell machining

Abstract

The utility model discloses an injection molding device for processing an industrial instrument shell, which belongs to the technical field of injection molding and comprises a base frame, a first injection mold and a second injection mold are movably arranged at the bottom of an inner cavity of the base frame, and an injection molding channel is formed in the center of the top of the opposite side of the first injection mold and the second injection mold. Through cooperation of the connecting assembly, the first injection mold and the second injection mold can be conveniently connected to form a complete injection mold, injection liquid can conveniently flow into the mold from an injection channel, then the driving assembly drives the rotating shaft to rotate, a knocking block on the outer side of the rotating shaft knocks a knocking plate, and therefore the injection mold is formed. The knocking plate drives the first injection mold to integrally vibrate through the second injection mold, bubbles in injection liquid can be conveniently discharged, meanwhile, an injection cavity can be filled with the injection liquid, the quality of an injection part is guaranteed, and bubble holes are prevented from being generated in the injection part or on the surface of the injection part.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an injection molding device for processing industrial instrument shells. Background Art

[0002] Injection molding is a method of producing industrial products. Products are usually made using rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding and die casting.

[0003] In the prior art, the Chinese utility model with publication number: CN211416066U discloses an injection molding device for processing plastic shells, including a material box, a feed port is fixedly connected to the top center of the material box, a fixed base is fixedly connected to the bottom of the material box, a plurality of injection molding tubes are arranged in front of the fixed base, the outer surfaces of the bottom ends of the plurality of injection molding tubes are sleeved, an injection molding nozzle is fixedly connected to the bottom end of the sleeve, a fixed rod is fixedly connected to the outer surface of the sleeve near the fixed base, and a motor is fixedly connected to the front wall of the fixed base near the sleeve. In the utility model, the driving rod is driven by the motor to rotate, so that the fixed rod moves, so that the sleeve moves along the injection molding tube, so that the injection molding nozzle can extend into the interior of the mold cavity, which can effectively prevent the material injected into the mold cavity by the injection molding nozzle from scattering to the outer surface of the mold, so that the production cost is reduced, and the outer surface of the mold does not need to be cleaned, so as not to affect the production efficiency.

[0004] In the above technical solution, a sleeve is used to drive the injection nozzle to move up and down, which facilitates the insertion of the injection nozzle into the injection mold during the injection molding process and reduces the generation of bubbles. This method can effectively prevent bubbles generated by splashing of the injection liquid, but cannot discharge hollow bubbles generated by the internal structure of the injection mold, resulting in the injection liquid being unable to fill the entire injection mold cavity, causing bubbles to be generated inside or on the surface of the injection molded product, affecting the quality. Utility Model Content

[0005] The purpose of the utility model is to provide an injection molding device for processing industrial instrument shells, wherein a driving component drives a rotating shaft to rotate, so that the rotating shaft drives two groups of knocking blocks to contact a knocking plate, and under the restriction of a limiting component, the knocking plate drives a second injection mold to shake, and at the same time, with the cooperation of a connecting component, the first injection mold and the second injection mold are combined into a whole, and bubbles are made to surge up through vibration to ensure that the injection liquid fills the inner cavity of the injection mold, and bubbles are avoided inside the injection molded part, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection molding device for processing industrial instrument housings, comprising a base frame, a first injection mold and a second injection mold are movably arranged at the bottom of the inner cavity of the base frame, an injection channel is provided at the center of the top of the opposite side of the first injection mold and the second injection mold, a receiving groove is provided at the bottom of the base frame, and the front and rear ends of the first injection mold and the second injection mold are provided with connecting components, the inner cavity of the receiving groove is rotatably connected to a rotating shaft through a bearing, two groups of knocking blocks are fixed on the outside of the rotating shaft, a knocking plate is fixed to the bottom of the second injection mold, the knocking plate extends to the inner cavity of the receiving groove and is in movably contact with the knocking block, the inner cavity of the receiving groove is provided with a driving component for driving the rotating shaft, and the bottom of the inner cavity of the base frame is provided with a limiting component for limiting the first injection mold and the second injection mold.

[0007] Preferably, the connecting assembly includes a first fixed block fixed to the front and back sides of the first injection mold, the interior of the first fixed block is movably connected to a screw rod through a movable ball, the outer side of the screw rod is threadedly connected to a nut, and a second fixed block is fixed to the front and back sides of the second injection mold, a slot that is mutually engaged with the nut is provided on the side of the second fixed block away from the first fixed block, and an operating rod is movably provided on the end of the screw rod away from the first fixed block.

[0008] Preferably, the driving assembly includes a driving motor fixed to the inner cavity of the storage groove, the output shaft of the driving motor is fixed with a driving pulley, the surface of the rotating shaft is fixed with a driven pulley, and the outer sides of the driving pulley and the driven pulley are sleeved with a transmission belt.

[0009] Preferably, the limiting assembly includes a first slide groove and a second slide groove opened on both sides of the bottom of the inner cavity of the base frame, the inner cavity of the first slide groove is slidably connected with a first slider, the top of the first slider passes through the first slide groove and is fixed to the bottom of the first injection mold, the inner cavity of the second slide groove is slidably connected with a second slider, the top of the second slider passes through the second slide groove and is fixedly connected to the bottom of the second injection mold, and a connecting spring is fixed on one side of the inner cavity of the first slide groove, and one end of the connecting spring is fixedly connected to the outer side of the first slider.

[0010] Preferably, a support plate is fixed to the bottom of the inner cavity of the base frame, an electric push rod is fixed to one side of the support plate, and a piston rod of the electric push rod penetrates the support plate and extends toward the second injection mold.

[0011] Preferably, a fixing cylinder is fixed on one side of the second injection mold close to the support plate, a connecting rod extending to the inner cavity of the fixing cylinder is fixed to the piston rod of the electric push rod, and a limiting plate is fixed to one end of the connecting rod away from the electric push rod.

[0012] Preferably, positioning columns are fixed on all four sides of the first injection mold on one side close to the second injection mold, and positioning holes for engaging with the positioning columns are opened at corresponding positions of the second injection mold.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model facilitates the connection of the first injection mold and the second injection mold to form a complete injection mold through the cooperation of the connecting component, which facilitates the injection liquid to flow into the mold from the injection channel, and then the driving component drives the rotating shaft to rotate, so that the knocking block outside the rotating shaft knocks the knocking plate, so that the knocking plate drives the first injection mold as a whole to vibrate through the second injection mold, which facilitates the discharge of bubbles in the injection liquid, and at the same time allows the injection liquid to fill the injection cavity, so as to ensure the quality of the injection molded part and avoid the formation of bubbles or holes inside or on the surface.

[0015] 2. The utility model facilitates the movement of the second injection mold by setting the electric push rod, and cooperates with the first injection mold for disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the connection assembly of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the base frame of the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the base frame of the utility model;

[0020] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the fixing cylinder of the utility model;

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the first injection mold and the second injection mold of the utility model.

[0022] Numbers in the figure: 1. base frame; 2. first injection mold; 3. second injection mold; 4. injection channel; 5. storage slot; 6. connecting assembly; 61. first fixed block; 62. screw rod; 63. nut; 64. second fixed block; 65. slot; 66. operating lever; 7. rotating shaft; 8. knock block; 9. knock plate; 10. driving assembly; 101. driving motor; 102. driving pulley; 103. driven pulley; 11. limiting assembly; 111. first slide groove; 112. second slide groove; 113. first slider; 114. second slider; 115. connecting spring; 12. support plate; 13. electric push rod; 14. fixing cylinder; 15. connecting rod; 16. limiting plate; 17. positioning column; 18. positioning hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides Figures 1 to 6 An injection molding device for processing an industrial instrument housing shown in the figure comprises a base frame 1, a first injection mold 2 and a second injection mold 3 are movably arranged at the bottom of the inner cavity of the base frame 1, an injection channel 4 is provided at the center of the top of the first injection mold 2 and the second injection mold 3 facing each other, a receiving groove 5 is provided at the bottom of the base frame 1, a connecting component 6 is provided at the front and rear ends of the first injection mold 2 and the second injection mold 3, the inner cavity of the receiving groove 5 is rotatably connected to a rotating shaft 7 through a bearing, two groups of knocking blocks 8 are fixed on the outer side of the rotating shaft 7, a knocking plate 9 is fixed at the bottom of the second injection mold 3, the knocking plate 9 extends to the inner cavity of the receiving groove 5 and is in movably contact with the knocking block 8, a driving component 10 for driving the rotating shaft 7 is provided in the inner cavity of the receiving groove 5, and a limiting component 11 for limiting the first injection mold 2 and the second injection mold 3 is provided at the bottom of the inner cavity of the base frame 1;

[0025] Through the cooperation of the connecting component 6, it is convenient to connect the first injection mold 2 and the second injection mold 3 to form a complete injection mold, so that the injection liquid can flow into the mold from the injection channel 4, and then the driving component 10 drives the rotating shaft 7 to rotate, so that the knocking block 8 on the outside of the rotating shaft 7 knocks the knocking plate 9, so that the knocking plate 9 drives the first injection mold 2 to vibrate as a whole through the second injection mold 3, so as to facilitate the discharge of bubbles in the injection liquid. At the same time, the injection liquid can fill the injection cavity to ensure the quality of the injection molded part and avoid the formation of bubbles or holes inside or on the surface.

[0026] The connecting component 6 includes a first fixed block 61 fixed to the front and back sides of the first injection mold 2, the interior of the first fixed block 61 is movably connected with a screw rod 62 through a movable ball, the outer side of the screw rod 62 is threadedly connected with a nut 63, and a second fixed block 64 is fixed to the front and back sides of the second injection mold 3. The second fixed block 64 is provided with a slot 65 that is mutually engaged with the nut 63 on the side away from the first fixed block 61, and an operating rod 66 is movably provided on the end of the screw rod 62 away from the first fixed block 61. Through the cooperation of the screw rod 62 and the nut 63, the first fixed block 61 and the second fixed block 64 are tightened, and then the first injection mold 2 and the second injection mold 3 are pressurized to ensure that the first injection mold 2 and the second injection mold 3 are docked.

[0027] The driving assembly 10 includes a driving motor 101 fixed to the inner cavity of the storage groove 5, the output shaft of the driving motor 101 is fixed with a driving pulley 102, the surface of the rotating shaft 7 is fixed with a driven pulley 103, and the outer sides of the driving pulley 102 and the driven pulley 103 are sleeved with a transmission belt. The driving motor 101 drives the driving pulley 102 to rotate, and then the transmission belt drives the driven pulley 103 to rotate, so that the rotating shaft 7 and the driven pulley 103 rotate synchronously to drive the knocking block 8.

[0028] The limiting component 11 includes a first slide groove 111 and a second slide groove 112 which are opened on both sides of the bottom of the inner cavity of the base frame 1. The inner cavity of the first slide groove 111 is slidably connected with a first slider 113. The top of the first slider 113 passes through the first slide groove 111 and is fixed to the bottom of the first injection mold 2. The inner cavity of the second slide groove 112 is slidably connected with a second slider 114. The top of the second slider 114 passes through the second slide groove 112 and is fixedly connected to the bottom of the second injection mold 3. A connecting spring 115 is fixedly provided on one side of the inner cavity of the first slide groove 111. One end of the connecting spring 115 is fixedly connected to the outer side of the first slider 113. Through the cooperation of the first slide groove 111, the first slider 113, the second slide groove 112 and the second slider 114, it is convenient to limit the first injection mold 2 and the second injection mold 3, and ensure that the first injection mold 2 and the second injection mold 3 move smoothly in the base frame 1. Then the connecting spring 115 can limit the first injection mold 2, which also has a buffering effect.

[0029] A support plate 12 is fixed to the bottom of the inner cavity of the base frame 1, and an electric push rod 13 is fixed to one side of the support plate 12. The piston rod of the electric push rod 13 penetrates the support plate 12 and extends toward the second injection mold 3. The electric push rod 13 is installed through the support plate 12 so that the electric push rod 13 pushes the second injection mold 3 to fit the first injection mold 2, thereby facilitating the connection between the first injection mold 2 and the second injection mold 3.

[0030] A fixed cylinder 14 is fixed to one side of the second injection mold 3 close to the support plate 12, and a connecting rod 15 extending to the inner cavity of the fixed cylinder 14 is fixed to the piston rod of the electric push rod 13. A limiting plate 16 is fixed to the end of the connecting rod 15 away from the electric push rod 13. The connecting rod 15 and the limiting plate 16 move in the inner cavity of the fixed cylinder 14, so that when the electric push rod 13 retracts, the limiting plate 16 and the fixed cylinder 14 can be used to drive the second injection mold 3 away from the first injection mold 2, so as to facilitate demolding.

[0031] Positioning posts 17 are fixed on all four sides of the first injection mold 2 near the second injection mold 3, and corresponding positions of the second injection mold 3 are provided with positioning holes 18 that are engaged with the positioning posts 17. The positioning posts 17 move in the positioning holes 18 to facilitate positioning and adjustment of the first injection mold 2 and the second injection mold 3 to prevent the first injection mold 2 and the second injection mold 3 from being misaligned during movement, which would result in dimensional deviation of the injection molded product.

[0032] When in use, the electric push rod 13 is started, and the piston rod of the electric push rod 13 drives the connecting rod 15 to be inserted into the fixed cylinder 14, and drives the second injection mold 3 to be close to the first injection mold 2 through the fixed cylinder 14, and then the screw rod 62 is rotated to move the nut 63 to the slot 65 outside the second fixed block 64, and the operating rod 66 is rotated to drive the screw rod 62 to rotate, and then the first fixed block 61 and the second fixed block 64 are used to make the first injection mold 2 and the second injection mold 3 fit tightly. In this process, the positioning column 17 and the positioning hole 18 play a positioning and correction role, and the injection liquid is injected from the injection channel. 4, and then start the driving motor 101, the driving motor 101 drives the driving pulley 102 to rotate, and then the driving pulley 102 drives the driven pulley 103 and the rotating shaft 7 to rotate through the transmission belt, and then the knocking block 8 is driven by the rotating shaft 7 to rotate and knock the knocking plate 9, the knocking plate 9 is connected to the second injection mold 3, and the vibration is transmitted to the first injection mold 2 and the second injection mold 3, so that the bubbles in the injection liquid surge upward, and at the same time, the injection liquid fills the first injection mold 2 and the second injection mold 3, ensuring that no bubbles or holes are generated inside or on the surface of the injection molded part.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding device for processing an industrial instrument housing, comprising a base frame (1), characterized in that: A first injection mold (2) and a second injection mold (3) are movably arranged at the bottom of the inner cavity of the base frame (1); an injection channel (4) is provided at the center of the top of the first injection mold (2) and the second injection mold (3) facing each other; a receiving groove (5) is provided at the bottom of the base frame (1); the front and rear ends of the first injection mold (2) and the second injection mold (3) are both provided with connecting components (6); the inner cavity of the receiving groove (5) is rotatably connected to a rotating shaft (7) through a bearing; two groups of knocking blocks (8) are fixed to the outer side of the rotating shaft (7); a knocking plate (9) is fixed to the bottom of the second injection mold (3); the knocking plate (9) extends to the inner cavity of the receiving groove (5) and is in movably contact with the knocking block (8); the inner cavity of the receiving groove (5) is provided with a driving component (10) for driving the rotating shaft (7); and the bottom of the inner cavity of the base frame (1) is provided with a limiting component (11) for limiting the first injection mold (2) and the second injection mold (3).

2. The injection molding device for processing industrial instrument housing according to claim 1, characterized in that: The connecting assembly (6) comprises a first fixing block (61) fixed to the front and back sides of the first injection mold (2); a screw rod (62) is movably connected to the interior of the first fixing block (61) via a movable ball; a nut (63) is threadedly connected to the outer side of the screw rod (62); a second fixing block (64) is fixed to the front and back sides of the second injection mold (3); a slot (65) for interlocking with the nut (63) is provided on a side of the second fixing block (64) away from the first fixing block (61); and an operating rod (66) is movably provided on one end of the screw rod (62) away from the first fixing block (61).

3. The injection molding device for processing industrial instrument housing according to claim 1, characterized in that: The driving assembly (10) comprises a driving motor (101) fixed to the inner cavity of the storage groove (5); a driving pulley (102) is fixed to the output shaft of the driving motor (101); a driven pulley (103) is fixed to the surface of the rotating shaft (7); and a transmission belt is sleeved on the outer sides of the driving pulley (102) and the driven pulley (103).

4. The injection molding device for industrial instrument housing processing according to claim 1 is characterized in that: The limiting component (11) comprises a first slide groove (111) and a second slide groove (112) which are provided on both sides of the bottom of the inner cavity of the base frame (1); the inner cavity of the first slide groove (111) is slidably connected to a first slider (113); the top of the first slider (113) passes through the first slide groove (111) and is fixed to the bottom of the first injection mold (2); the inner cavity of the second slide groove (112) is slidably connected to a second slider (114); the top of the second slider (114) passes through the second slide groove (112) and is fixedly connected to the bottom of the second injection mold (3); a connecting spring (115) is fixedly provided on one side of the inner cavity of the first slide groove (111); one end of the connecting spring (115) is fixedly connected to the outer side of the first slider (113).

5. The injection molding device for industrial instrument housing processing according to claim 1, characterized in that: A support plate (12) is fixed to the bottom of the inner cavity of the base frame (1), an electric push rod (13) is fixed to one side of the support plate (12), and a piston rod of the electric push rod (13) penetrates the support plate (12) and extends towards the second injection mold (3).

6. The injection molding device for processing industrial instrument housing according to claim 5, characterized in that: A fixing cylinder (14) is fixed to a side of the second injection mold (3) close to the support plate (12); a connecting rod (15) extending to the inner cavity of the fixing cylinder (14) is fixed to the piston rod of the electric push rod (13); and a limiting plate (16) is fixed to one end of the connecting rod (15) away from the electric push rod (13).

7. The injection molding device for industrial instrument housing processing according to claim 1, characterized in that: Positioning columns (17) are fixed around the first injection mold (2) on the side close to the second injection mold (3), and corresponding positions of the second injection mold (3) are provided with positioning holes (18) that are engaged with the positioning columns (17).

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