Injection molding device for instrument panel base

By designing an injection molding device for instrument panel bases that includes an undercut groove forming mechanism, a synchronous discharge mechanism, and an automatic descrewing mechanism, the problem of high energy consumption in the forming of undercut grooves and threaded grooves in the existing technology has been solved, and automated demolding and energy consumption reduction have been achieved.

CN121105329APending Publication Date: 2025-12-12SUZHOU HONG NENG TOOL&DIE CO LTD
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Patent Information

Application Number
CN202511588017.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-03
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

Existing automotive dashboard base injection molds require additional demolding structures when molding undercut grooves and threaded grooves, resulting in high energy consumption and inconvenient operation.

Method used

An injection molding device for dashboard base was designed, comprising an undercut groove forming mechanism, a synchronous discharge mechanism, and an automatic descrewing mechanism. Through the cooperation of drive components, moving components, and linkage components, the automatic forming and demolding of undercut grooves and threaded grooves are realized.

Benefits of technology

It enables automatic forming and demolding of undercut grooves and threaded grooves, reducing equipment energy consumption and improving demolding efficiency.

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Abstract

The invention discloses an instrument panel base injection molding device, and belongs to the technical field of injection molding. The injection molding machine body comprises a mold closing mechanism, an injection mechanism, a movable mold plate and a fixed mold plate; a back-off groove forming mechanism is mounted on the movable mold plate; the inverted buckle groove forming mechanism comprises a driving assembly and a movable assembly. A synchronous discharging mechanism is further installed at the left end of the movable mold plate and on the driving assembly. And an automatic thread demoulding mechanism is mounted on the synchronous discharging mechanism. By means of the mode, the device can complete forming operation of the threaded connecting part and the inverted buckle groove forming part of the instrument panel base body only through one driving force, separation of the movable assembly and the automatic reset mold ejecting assembly from the instrument panel base body can be automatically completed during mold opening, the structure is simple, the demolding efficiency is guaranteed, and the demolding time is shortened. And the energy consumption of equipment operation is also reduced.
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Description

Technical Field

[0001] This invention relates to the field of injection molding technology, and specifically to an injection molding device for an instrument panel base. Background Technology

[0002] The car dashboard is the core device used to display the operating status of various vehicle systems. It integrates multiple instruments and indicator lights to provide drivers with real-time driving information.

[0003] Chinese patent CN213564110U discloses an injection mold for an automotive dashboard, including a base. The top of the base has a mold groove, and the top of both side walls of the mold groove have fixed seats. A supporting side plate is located above the fixed seats, and the bottom of the supporting side plate is fixedly connected to the top of the fixed seats. A top plate is fixedly connected to the top of the supporting side plate. The inner cavity of the base has a driving cavity, and the bottom of the top plate has symmetrically arranged electric telescopic rods. An upper module is fixedly connected to the bottom of the electric telescopic rods. Injection tubes are located at the center of the top plate and the top center of the upper module, and a connecting hose connects the injection tubes. However, this device still has the following problems during use: Instrument panel bases typically require undercut grooves and threaded grooves for easy instrument panel installation. During the mold-making process, additional demolding structures are needed to form and demold the undercut grooves and threaded grooves, which is energy-intensive and inconvenient.

[0004] Based on this, the present invention designs an injection molding device for dashboard base to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an injection molding device for dashboard base.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An injection molding apparatus for a dashboard base includes an injection molding machine body, and also includes an undercut groove forming mechanism, a synchronous discharge mechanism and an automatic unscrewing mechanism; The injection molding machine body includes a mold clamping mechanism, an injection mechanism, a moving platen, a fixed platen, and a base. The mold clamping mechanism is installed on the upper left side of the base; the injection mechanism is installed on the upper right side of the base; the movable end of the mold clamping mechanism is fixedly connected to the movable template; the fixed template is fixedly installed on the right side of the mold clamping mechanism. The moving template is equipped with an undercut groove forming mechanism that facilitates the forming of the undercut groove forming part of the instrument panel base body; The undercut groove forming mechanism includes a drive assembly and a movable assembly; the drive assembly is installed at the left end of the moving template; multiple sets of movable assemblies are installed in the clearance groove and connected to the drive assembly; The left end of the moving template and the drive assembly are also equipped with a synchronous discharge mechanism for automatically demolding the instrument panel base body. The synchronous discharge mechanism is equipped with an automatic unscrewing mechanism for forming the threaded connection part of the instrument panel base body and realizing the linkage of the threaded groove for material removal. Furthermore, the left end of the fixed template is provided with a forming groove for forming the instrument panel mounting part of the instrument panel base body; the middle part of the fixed template is provided with a feeding channel; the right end of the fixed template is provided with an injection port; the injection port is connected to the feeding channel; the feeding channel is connected to the forming groove. The right end of the moving template is provided with a contour groove that cooperates with the forming groove to perform forming operations on the instrument panel mounting part. A contour plate is fixedly installed in the middle of the contour groove; A clearance groove is provided on the left side of the moving template; The synchronous discharge mechanism includes a reversing component, a moving component, and an automatic reset top mold component; the reversing component is connected to the left end of the driving component and the moving mold plate. The moving component is connected to the reversing component; the automatic reset lifting mechanism is connected to the moving template and the moving component. The reversing assembly is connected to the automatic unscrewing mechanism; The automatic unscrewing mechanism includes a linkage assembly and a bolt; the linkage assembly is connected to the reversing assembly; the bolt is mounted on the linkage assembly; The discharge end of the injection mechanism is connected to the injection port; Furthermore, the drive assembly includes a dual-axis push cylinder and a drive wedge block; the dual-axis push cylinder is fixedly mounted on the lower left side of the moving template via a bracket; the output end of the dual-axis push cylinder is fixedly connected to the left end of the drive wedge block; the drive wedge block is connected to multiple sets of movable components. Furthermore, the active component includes a driven wedge block, a forming insert plate, a linear guide rail, and a linear sliding block; the linear guide rail is fixedly installed on the left inner wall of the clearance groove; the linear sliding block is slidably connected to the linear guide rail; the left end of the driven wedge block is fixedly connected to the linear sliding block; the driven wedge block is slidably connected to one side of the driving wedge block. A shaped insert plate is fixedly installed on the right end of the driven wedge block away from the driving wedge block; The conformal plate has an expansion groove; the forming insert plate and the expansion groove are slidably connected in a sealed fit. Furthermore, the reversing assembly includes a drive rod, a drive rack, a reversing gear, a driven rack, a driven rod, and a bracket; drive rods are fixedly installed on both the front and rear sides of the left end of the drive wedge block; a drive rack is fixedly installed on the ends of the two drive rods that are far apart; brackets are symmetrically fixedly installed on both the front and rear sides of the left end of the moving template; the reversing gear is rotatably installed on the upper end of the bracket. The driven rod is slidably connected to the upper end of the bracket; a driven rack is fixedly installed at the end of the two driven rods that are close to each other; The reversing gear is meshed with both the driving rack and the driven rack; The driven rod is connected to the moving component; The drive rod is connected to the linkage assembly; Furthermore, the movable component includes a movable frame, insert rods, and a first contact plate; the left ends of the front and rear driven rods are fixedly connected to the middle of the right end of the movable frame; multiple insert rods and the first contact plate are fixedly installed in a rectangular array on the right end of the movable frame; and the first contact plate is sleeved on the outer side of the left end of the insert rod; the insert rod is connected to the automatic reset top mold assembly. Furthermore, the automatic reset top mold assembly includes a top rod, a second contact plate, and a reset spring; the top rod is slidably connected to the moving template and the inner wall of the second contact plate; a movable groove is provided in the middle of the top rod; and the insert rod is slidably connected to the movable groove. A second contact plate is fixedly installed on the outer side of the left end of the push rod; a reset spring is sleeved on the outer side of the left end of the push rod and one end of the reset spring is fixedly connected to the second contact plate; the other end of the reset spring is fixedly connected to the left end of the moving template. Furthermore, the linkage assembly includes a support plate, a fixed base, and a cross plate; the upper and lower ends of the driven rod are fixedly installed with cross plates; both the upper and lower cross plates are fixedly connected to the support plate; and the upper and lower sides of the right end of the support plate are symmetrically rotatably installed with bolts. The left end of the moving template has multiple circular slots arranged in a rectangular array; a fixing seat is fixedly installed on both the left and right sides of the circular slot; the bolt is threadedly connected to the fixing seat; and the bolt is located inside the circular slot. The circular groove is connected to the clearance groove.

[0007] Compared with the prior art, the beneficial effects of this invention are as follows: the drive component controls multiple sets of moving components to move and reset into the interior of the contour plate, so that the moving components are separated from the undercut groove forming part of the instrument panel base body; Furthermore, when the drive component controls the active component to reset, it will also pull multiple bolts to the left through the linkage component. During the movement, the bolts will also rotate, causing the bolts to separate from the threaded connection part of the instrument panel base body. Subsequently, the mold closing mechanism drives the moving template to move to the left to reset, and the drive component will continue to work to drive the moving component to move to the right through the reversing component until the moving component separates from the undercut groove forming part and the bolt screw separates from the threaded connection part. Then the moving component will contact the automatic reset top mold component and control the automatic reset top mold component to move out from the right side of the profile plate, and push the instrument panel base body out of the profile plate to complete the unloading operation.

[0008] By cooperating with the drive assembly, multiple sets of movable components, the bolt screw, and the automatic reset top mold assembly, the device can complete the forming of the threaded connection part and the undercut groove forming part of the instrument panel base body with only one driving force. Furthermore, it can automatically separate the movable components and the automatic reset top mold assembly from the instrument panel base body when the mold is opened. The structure is simple, which not only ensures demolding efficiency but also reduces the energy consumption of the equipment operation. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0010] Figure 1 This invention provides a three-dimensional injection molding device for an instrument panel base. Figure 1 ; Figure 2 This is a front view of an instrument panel base injection molding apparatus according to the present invention; Figure 3 This invention provides a three-dimensional injection molding device for an instrument panel base. Figure 2 ; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 For along Figure 2 A 3D diagram with a portion removed from the BB direction; Figure 6 for Figure 5 Enlarged view of point C in the middle; Figure 7 A perspective view of the automatic unscrewing mechanism with a portion of its front section cut away; Figure 8 A three-dimensional view of the synchronous discharge mechanism with a portion of its front cut away; Figure 9 This is a partial 3D view of the undercut groove forming mechanism; Figure 10 A 3D view of the dashboard base; Figure 11 This invention provides a three-dimensional injection molding device for an instrument panel base. Figure 3 .

[0011] The labels in the diagram represent: 1. Injection molding machine body; 11. Mold clamping mechanism; 12. Injection mechanism; 13. Moving platen; 131. Relief groove; 132. Copying plate; 133. Copying groove; 14. Fixed platen; 141. Forming groove; 142. Injection port; 15. Base; 2. Undercut groove forming mechanism; 21. Dual-axis push cylinder; 22. Drive wedge block; 23. Driven wedge block; 24. Forming insert plate; 25. Telescopic relief groove; 26. Linear guide rail; 27. Linear sliding block; 3. Synchronous discharge mechanism; 31. Drive rod; 32. Drive rod 33. Moving rack; 34. Reversing gear; 35. Driven rack; 36. Driven rod; 37. Bracket; 38. Movable frame; 39. Insert rod; 30. First contact plate; 310. Push rod; 311. Movable groove; 312. Second contact plate; 313. Return spring; 4. Automatic unscrewing mechanism; 41. Rifle screw; 42. Support plate; 43. Fixed seat; 44. Horizontal plate; 45. Round groove; 5. Instrument panel base body; 51. Instrument panel mounting part; 52. Threaded connection part; 53. Undercut groove forming part. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0013] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0014] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-10 An injection molding device for an instrument panel base includes an injection molding machine body 1, and also includes an undercut groove molding mechanism 2, a synchronous discharge mechanism 3 and an automatic unscrewing mechanism 4; like Figure 1 As shown, the injection molding machine body 1 includes a mold clamping mechanism 11 for providing clamping force, an injection mechanism 12 for extruding the injection plastic, a moving mold plate 13, a fixed mold plate 14, and a base 15; Both the mold clamping mechanism 11 and the injection mechanism 12 adopt mature technologies in the industry. The mold clamping mechanism 11 is installed on the upper left side of the base 15; the injection mechanism 12 is installed on the upper right side of the base 15. The movable end of the mold closing mechanism 11 is fixedly connected to the moving template 13; The fixed template 14 is fixedly installed on the right side of the mold closing mechanism 11; The left end of the fixed template 14 is provided with a forming groove 141 for forming the instrument panel mounting part 51 of the instrument panel base body 5; the middle part of the fixed template 14 is provided with a feeding channel; the right end of the fixed template 14 is provided with an injection port 142; the injection port 142 is connected to the feeding channel; the feeding channel is connected to the forming groove 141. The right end of the moving template 13 is provided with a contour groove 133 that cooperates with the forming groove 141 to perform forming operations on the instrument panel mounting part 51. A contour plate 132 is fixedly installed in the middle of the contour groove 133; A clearance groove 131 is provided on the left side of the moving template 13; The moving template 13 is equipped with an undercut groove forming mechanism 2 that facilitates the forming of the undercut groove forming part 53 of the instrument panel base body 5; The undercut groove forming mechanism 2 includes a drive component and a movable component; the drive component is installed at the left end of the moving template 13; multiple sets of movable components are installed in a circumferential array in the relief groove 131 and connected to the drive component; The left end of the moving template 13 and the drive assembly are also equipped with a synchronous discharge mechanism 3 for automatically demolding the instrument panel base body 5. The synchronous discharge mechanism 3 includes a reversing component, a moving component, and an automatic reset top mold component; the reversing component is connected to the driving component and the left end of the moving template 13; The moving component is connected to the reversing component; the automatic reset lifting mechanism is connected to the moving template 13 and the moving component; The reversing assembly is also equipped with an automatic unscrewing mechanism 4 for forming the threaded connection part 52 of the instrument panel base body 5 and realizing the linkage thread groove unloading. The automatic unscrewing mechanism 4 includes a linkage component and a bolt 41; the linkage component is connected to the reversing component; the bolt 41 is mounted on the linkage component; The left end of the injection mechanism 12 is configured as the discharge end; and the discharge end of the injection mechanism 12 is connected to the injection port 142; The moving template 13 and the fixed template 14 are provided with cooling water channels for convenient cooling. In this invention, when the injection molding operation of the instrument panel base body 5 begins, the rock bolt 41 is located on the right side of the left inner wall of the contour groove 133; and multiple sets of movable components protrude from the side wall of the contour plate 132 and are located inside the contour groove 133. Subsequently, the mold closing mechanism 11 operates to move the moving template 13 horizontally to the right. During the movement, the bolt 41 and the contour plate 132 both move into the forming groove 141 until the right end of the moving template 13 abuts against the left end of the fixed template 14. Subsequently, the injection mechanism 12 works to extrude molten injection plastic into the feed channel through the injection port 142. The injection plastic then flows along the feed channel into the molding tank 141, where the molding plate 132 and the molding tank 141 complete the molding operation of the instrument panel mounting part 51; the moving component completes the molding operation of the undercut groove molding part 53; and the molten injection plastic adheres to the bolt 41 to complete the molding operation of the threaded connection part 52; thus completing the molding operation of the instrument panel base body 5. After the pressure holding and cooling are completed, the drive component controls multiple sets of movable components to move and reset into the interior of the contour plate 132, so that the movable components separate from the undercut groove forming part 53 of the instrument panel base body 5. Furthermore, when the drive component controls the active component to reset, it will also pull multiple bolts 41 to the left through the linkage component. During the movement, the bolts 41 will also rotate, causing the bolts 41 to separate from the threaded connection part 52 of the instrument panel base body 5. Subsequently, the mold closing mechanism 11 operates to move the template 13 to the left to reset, and the drive component will continue to work to drive the moving component to the right through the reversing component until the moving component separates from the undercut groove forming part 53 and the bolt screw 41 separates from the threaded connection part 52. Then the moving component will contact the automatic reset top mold component and control the automatic reset top mold component to move out from the right side of the profile plate 132, and push the instrument panel base body 5 out from the profile plate 132 to complete the unloading operation.

[0015] Through the cooperation of the drive assembly, multiple sets of movable components, the bolt 41, and the automatic reset top mold assembly, the device can complete the forming operation of the threaded connection part 52 and the undercut groove forming part 53 of the instrument panel base body 5 with only one driving force. Furthermore, it can automatically separate the movable components and the automatic reset top mold assembly from the instrument panel base body 5 when the mold is opened. The structure is simple, which not only ensures demolding efficiency but also reduces the energy consumption of the equipment operation.

[0016] Example 2: In some embodiments, such as Figures 1-9 As shown, in a preferred embodiment of the present invention, the driving assembly includes a dual-axis push cylinder 21 and a driving wedge block 22; the dual-axis push cylinder 21 is fixedly installed on the lower left side of the moving template 13 by a bracket; the output end of the dual-axis push cylinder 21 is fixedly connected to the left end of the driving wedge block 22; the driving wedge block 22 is connected to multiple sets of movable components; like Figure 6 and Figure 9As shown, the movable component includes a driven wedge block 23, a forming insert plate 24, a linear guide rail 26, and a linear sliding block 27; the linear guide rail 26 is fixedly installed on the left inner wall of the clearance groove 131; the linear sliding block 27 is slidably connected to the linear guide rail 26; the left end of the driven wedge block 23 is fixedly connected to the linear sliding block 27; the driven wedge block 23 is slidably connected to one side of the driving wedge block 22. A molded insert plate 24 is fixedly installed on the right end of the driven wedge block 23 away from the driving wedge block 22; The conformal plate 132 has a telescopic relief groove 25 inside; the molded insert plate 24 is slidably connected to the telescopic relief groove 25 in a sealed fit; like Figure 4 and Figure 6 As shown, the reversing assembly includes a drive rod 31, a drive rack 32, a reversing gear 33, a driven rack 34, a driven rod 35, and a bracket 36; the drive rod 31 is fixedly installed on both the front and rear sides of the left end of the drive wedge block 22; the drive rack 32 is fixedly installed on the ends of the two drive rods 31 that are far apart; the bracket 36 is symmetrically fixedly installed on both the front and rear sides of the left end of the moving template 13; the reversing gear 33 is rotatably installed on the upper end of the bracket 36; The driven rod 35 is slidably connected to the upper end of the bracket 36; a driven rack 34 is fixedly installed at the close end of the two driven rods 35. The reversing gear 33 is meshed with both the driving rack 32 and the driven rack 34; Driven rod 35 is connected to the moving component; Drive rod 31 is connected to the linkage assembly; The movable component includes a movable frame 37, insert rods 38, and a first contact plate 39; the left ends of the two driven rods 35 are fixedly connected to the middle of the right end of the movable frame 37; multiple insert rods 38 and first contact plates 39 are fixedly installed in a rectangular array on the right end of the movable frame 37; and the first contact plate 39 is sleeved on the outer side of the left end of the insert rod 38; the insert rod 38 is connected to the automatic reset top mold assembly. like Figure 4 and Figure 8 As shown, the automatic reset top mold assembly includes a top rod 310, a second contact plate 312, and a reset spring 313; the top rod 310 is slidably connected to the moving template 13 and the inner wall of the second contact plate 312; a movable groove 311 is provided in the middle of the top rod 310; the insertion rod 38 is slidably connected to the movable groove 311. A second contact plate 312 is fixedly installed on the outer side of the left end of the push rod 310; a reset spring 313 is sleeved on the outer side of the left end of the push rod 310 and one end of the reset spring 313 is fixedly connected to the second contact plate 312; the other end of the reset spring 313 is fixedly connected to the left end of the moving template 13. like Figure 7As shown, the linkage assembly includes a support plate 42, a fixed base 43, and a horizontal plate 44; the horizontal plate 44 is fixedly installed at both the upper and lower ends of the driven rod 35; both the upper and lower horizontal plates 44 are fixedly connected to the support plate 42; and the right end of the support plate 42 is symmetrically and rotatably equipped with a rake screw 41 on both the upper and lower sides. The left end of the moving template 13 has multiple circular slots 45 arranged in a rectangular array; a fixing seat 43 is fixedly installed on both the left and right sides of the circular slot 45; the bolt 41 is threadedly connected to the fixing seat 43; and the bolt 41 is located inside the circular slot 45. The through groove 45 is connected to the relief groove 131; In this invention, when the injection molding operation of the instrument panel base body 5 begins, the dual-axis push cylinder 21 works to push the drive wedge block 22 to move to the right. The movement of the drive wedge block 22 will control multiple molding inserts 24 to follow the linear sliding block 27 to move away from the drive wedge block 22 along the linear guide rail 26, and drive the molding inserts 24 to move synchronously along the telescopic relief groove 25, so that the molding inserts 24 extend out of the contour plate 132 and move into the contour groove 133; As the drive wedge block 22 moves to the right, it also drives the drive rods 31 and drive rack 32 on the front and rear sides to move. At this time, the drive rack 32 drives the reversing gear 33 to rotate. The rotation of the reversing gear 33 will drive the driven rod 35 to move to the left through the driven rack 34, so that the movable frame 37 drives multiple insert rods 38 to move to the left along the movable groove 311. During the movement, the first contact plate 39 will separate from the second contact plate 312. Then the reset spring 313 returns to its original position and drives the top rod 310 to reset to the left. Furthermore, when the drive wedge block 22 moves to the right, it will also drive the support plate 42 to move to the right through the cross plate 44. At this time, the bolt 41 will move synchronously with the support plate 42 and rotate under the action of the fixed seat 43 until the right end of the bolt 41 moves out from the right side of the relief groove 131. Subsequently, the mold closing mechanism 11 operates to drive the moving template 13 to move horizontally to the right. During the movement, the bolt 41 and the contour plate 132 both move into the forming groove 141 until the right end of the moving template 13 abuts against the left end of the fixed template 14. Subsequently, the injection mechanism 12 works to inject molten injection plastic into the feed channel through the injection port 142. The injection plastic then flows along the feed channel into the molding tank 141, where the molding plate 132 and the molding tank 141 are used to form the instrument panel mounting part 51; the molding insert plate 24 is used to form the undercut groove forming part 53; and the molten injection plastic adheres to the part of the right side of the bolt screw 41 that protrudes into the relief groove 131 to form the threaded connection part 52. After the pressure holding and cooling are completed, the dual-axis push cylinder 21 drives the drive wedge block 22 to move to the left and reset. At this time, the drive wedge block 22 will drive multiple driven wedge blocks 23 to move towards the drive wedge block 22 and reset, so that the forming insert plate 24 follows the driven wedge block 23 and moves back into the profile plate 132 along the telescopic relief groove 25. At this time, the forming insert plate 24 will separate from the undercut groove forming part 53, which is convenient for demolding. When the drive wedge block 22 is reset, it will also drive the drive rod 31 to move to the left to reset, so that the support plate 42 pulls the bolt 41 to move to the left. During the movement, it rotates in the opposite direction under the action of the fixed seat 43, so that the bolt 41 is separated from the threaded connection part 52. When the drive rod 31 drives the drive rack 32 to move and reset, it will drive the reversing gear 33 to rotate, causing the driven rack 34 to drive the driven rod 35 to move to the right, causing the movable frame 37 to drive multiple insert rods 38 to move to the right along the top rod 310 until the forming insert plate 24 separates from the undercut groove forming part 53 and the bolt screw 41 is screwed away from the threaded connection part 52. When the mold closing mechanism 11 operates, it drives the template 13 to move to the left and reset. At the same time, the first contact plate 39 will come into contact with the second contact plate 312 and press the second contact plate 312 to the right, causing the second contact plate 312 to drive the push rod 310 to move to the right. During the movement, the reset spring 313 will be continuously compressed, causing the push rod 310 to move out from the right side of the contour plate 132 and push the instrument panel base body 5 out from the contour plate 132 to complete the unloading operation.

[0017] Example 3: In some embodiments, such as Figure 11 As shown, in a preferred embodiment of the present invention, a material unloading robot arm for convenient automated material unloading is fixedly installed at the rear of the injection molding machine body 1.

[0018] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An injection molding apparatus for an instrument panel base, comprising an injection molding machine body (1), characterized in that: It also includes an undercut groove forming mechanism (2), a synchronous discharge mechanism (3), and an automatic unscrewing mechanism (4); The injection molding machine body (1) includes a mold clamping mechanism (11), an injection mechanism (12), a moving platen (13), a fixed platen (14), and a base (15). The mold clamping mechanism (11) is installed on the upper left side of the base (15); the injection mechanism (12) is installed on the upper right side of the base (15); the movable end of the mold clamping mechanism (11) is fixedly connected to the movable template (13); the fixed template (14) is fixedly installed on the right side of the mold clamping mechanism (11); The moving template (13) is equipped with an undercut groove forming mechanism (2) that facilitates the forming of the undercut groove forming part (53) of the instrument panel base body (5); The undercut groove forming mechanism (2) includes a drive assembly and a movable assembly; the drive assembly is installed at the left end of the moving template (13); multiple sets of movable assemblies are installed in the clearance groove (131) and connected to the drive assembly; The left end of the moving template (13) and the drive assembly are also equipped with a synchronous discharge mechanism (3) for automatically demolding the instrument panel base body (5). An automatic unscrewing mechanism (4) is installed on the synchronous discharge mechanism (3) to perform forming operations on the threaded connection part (52) of the instrument panel base body (5) and realize the linkage thread groove unloading.

2. The instrument panel base injection molding device according to claim 1, characterized in that, The left end of the fixed template (14) is provided with a forming groove (141) for forming the instrument panel mounting part (51) of the instrument panel base body (5); the middle part of the fixed template (14) is provided with a feeding channel; the right end of the fixed template (14) is provided with an injection port (142); the injection port (142) is connected to the feeding channel; the feeding channel is connected to the forming groove (141); The right end of the moving template (13) is provided with a contour groove (133) that cooperates with the forming groove (141) to perform forming operations on the instrument panel mounting part (51). A contour plate (132) is fixedly installed in the middle of the contour groove (133); A clearance groove (131) is provided on the left side of the moving template (13); The synchronous discharge mechanism (3) includes a reversing component, a moving component, and an automatic reset top mold component; the reversing component is connected to the left end of the driving component and the moving template (13); The moving component is connected to the reversing component; the automatic reset lifting and moving template (13) is connected to the moving component; The reversing assembly is connected to the automatic unscrewing mechanism (4); The automatic unscrewing mechanism (4) includes a linkage assembly and a rifle screw (41); the linkage assembly is connected to the reversing assembly; the rifle screw (41) is mounted on the linkage assembly. The discharge end of the injection mechanism (12) is connected to the injection port (142).

3. The instrument panel base injection molding device according to claim 2, characterized in that, The drive assembly includes a dual-axis push cylinder (21) and a drive wedge block (22); the dual-axis push cylinder (21) is fixedly installed on the lower left side of the moving template (13) by a bracket; the output end of the dual-axis push cylinder (21) is fixedly connected to the left end of the drive wedge block (22); the drive wedge block (22) is connected to multiple sets of moving components.

4. The instrument panel base injection molding device according to claim 3, characterized in that, The movable components include a driven wedge block (23), a forming insert plate (24), a linear guide rail (26), and a linear sliding block (27); the linear guide rail (26) is fixedly installed on the left inner wall of the clearance groove (131); the linear sliding block (27) is slidably connected to the linear guide rail (26); the left end of the driven wedge block (23) is fixedly connected to the linear sliding block (27); the driven wedge block (23) is slidably connected to one side of the driving wedge block (22); A molded insert plate (24) is fixedly installed on the right end of the driven wedge block (23) away from the driving wedge block (22). The conforming plate (132) has a telescopic relief groove (25) inside; the forming insert plate (24) and the telescopic relief groove (25) are sealed and slidably connected.

5. The instrument panel base injection molding device according to claim 4, characterized in that, The reversing assembly includes a drive rod (31), a drive rack (32), a reversing gear (33), a driven rack (34), a driven rod (35), and a bracket (36); the drive rod (31) is fixedly installed on both the front and rear sides of the left end of the drive wedge block (22); the drive rack (32) is fixedly installed on the ends of the two drive rods (31) that are far apart; the bracket (36) is symmetrically fixedly installed on both the front and rear sides of the left end of the moving template (13); the reversing gear (33) is rotatably installed on the upper end of the bracket (36); The driven rod (35) is slidably connected to the upper end of the bracket (36); a driven rack (34) is fixedly installed at the close end of the two driven rods (35). The reversing gear (33) is meshed with both the driving rack (32) and the driven rack (34); The driven rod (35) is connected to the moving component; The drive rod (31) is connected to the linkage assembly.

6. The instrument panel base injection molding apparatus according to claim 5, characterized in that, The movable component includes a movable frame (37), insert rods (38), and a first contact plate (39); the left ends of the two driven rods (35) are fixedly connected to the middle of the right end of the movable frame (37); multiple insert rods (38) and the first contact plate (39) are fixedly installed in a rectangular array on the right end of the movable frame (37); and the first contact plate (39) is sleeved on the outer side of the left end of the insert rod (38); the insert rod (38) is connected to the automatic reset top mold assembly.

7. The instrument panel base injection molding device according to claim 6, characterized in that, The automatic reset top mold assembly includes a top rod (310), a second contact plate (312), and a reset spring (313); the top rod (310) is slidably connected to the moving template (13) and the inner wall of the second contact plate (312); a movable groove (311) is provided in the middle of the top rod (310); the insert rod (38) is slidably connected to the movable groove (311); A second contact plate (312) is fixedly installed on the outer side of the left end of the top rod (310); a reset spring (313) is sleeved on the outer side of the left end of the top rod (310) and one end of the reset spring (313) is fixedly connected to the second contact plate (312); the other end of the reset spring (313) is fixedly connected to the left end of the moving template (13).

8. The instrument panel base injection molding apparatus according to claim 7, characterized in that, The linkage assembly includes a support plate (42), a fixed seat (43), and a horizontal plate (44); the upper and lower ends of the driven rod (35) are fixedly installed with horizontal plates (44); both the upper and lower horizontal plates (44) are fixedly connected to the support plate (42); the right end of the support plate (42) is symmetrically rotatably installed with a rake screw (41) on both the upper and lower sides. The left end of the moving template (13) has multiple round slots (45) arranged in a rectangular array; a fixed seat (43) is fixedly installed on both the left and right sides of the round slot (45); the bolt (41) is threadedly connected to the fixed seat (43); and the bolt (41) is located inside the round slot (45); The through groove (45) is connected to the relief groove (131).

Citation Information

Patent Citations

  • Automobile instrument panel machining mold convenient to demold

    CN213564110U