Injection mold for connecting rotating shaft of automobile sun shield

Abstract

The utility model provides an automobile sun shield connecting rotating shaft injection mold which comprises a lower mold plate, an upper mold plate, a mold core, a sliding block, a horizontal ejector pin, an upper ejector pin and a lower ejector pin, the lower mold plate and the upper mold plate are provided with a mold core cavity and a sliding cavity, the mold core is embedded in the mold core cavity, and an L-shaped forming cavity which penetrates through the side face of the mold core and is communicated with the sliding cavity is formed in the mold core cavity. The sliding block can be horizontally and slidably arranged in the sliding cavity and aligned to the forming cavity, the sliding direction of the sliding block is parallel to the extending direction of the forming cavity, the horizontal ejector pin is connected to the surface, facing the mold core, of the sliding block, the extending direction of the horizontal ejector pin is parallel to the sliding direction of the sliding block, and the lower end of the upper ejector pin and the upper end of the lower ejector pin extend into the forming cavity; during mold closing, the upper ejector pin and the lower ejector pin jack up the metal pipe placed in the forming cavity, the end of the metal pipe is suspended, the sliding block slides in the direction close to the mold core, the end of the horizontal ejector pin extends into the forming cavity and is tightly inserted into a pipe opening of the metal pipe, the mode that an embedded block is manually placed is abandoned, and the injection mold is convenient to operate, accurate in positioning and high in injection molding efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely relates to a kind of injection mold of automobile sun visor connecting pivot. BACKGROUND

[0002] Automobile sun visor is installed above the head of driver and copilot, to prevent the board of sun glare, generally by L-shaped connecting pivot is connected on the car, when using, it can be turned down, when not using, it can be turned up, such as Chinese patent CN118322803A is disclosed this kind of automobile sun visor, the connecting pivot of this sun visor is metal pipe plastic part, specific structure is as shown in Figures 1 to 3 When making the connecting pivot 1, positioning insert needs to be placed in injection mold to support the end of metal pipe 2, the placing action is usually completed by artificial, inconvenient to operate, time-consuming, and low injection efficiency, when placing, the depth of positioning insert and metal pipe 2 is difficult to control, so that positioning insert cannot be accurately positioned, and it is easy to cause mold pressing due to positioning insert misplacement, with great risk. SUMMARY

[0003] The utility model aims at solving one or more problems in prior art, and provides an injection mold of automobile sun visor connecting pivot.

[0004] To achieve the above-mentioned purpose, the utility model provides a technical scheme, an injection mold of automobile sun visor connecting pivot, comprising:

[0005] Lower die plate, the upper surface of the lower die plate is provided with first recess, second recess, the second recess has a plurality of, a plurality of second recesses are all in communication with the first recess;

[0006] Upper die plate, the upper die plate is movably arranged above the lower die plate, the lower surface of the upper die plate is provided with third recess and fourth recess, the third recess is correspondingly arranged with the first recess and jointly constitutes die core cavity, the fourth recess has a plurality of and corresponds to the second recess one by one, a plurality of fourth recesses are all in communication with the third recess, and the fourth recess and its corresponding second recess jointly constitute sliding cavity;

[0007] Die core, the die core is arranged in the die core cavity, the die core is provided with L-shaped forming cavity for forming automobile sun visor connecting pivot, and the die core comprises lower die core embedded in the first recess and upper die core embedded in the third recess;

[0008] The end of the forming cavity penetrates the side of the mold core and communicates with the sliding cavity, the automobile sun visor connecting shaft injection mold further comprises a sliding block, a horizontal ejector pin, an upper ejector pin and a lower ejector pin, the sliding block is horizontally slidably arranged in the sliding cavity and is aligned with the end of the forming cavity, the sliding direction of the sliding block is parallel to the extension direction of the end of the forming cavity which is aligned with the sliding block, the horizontal ejector pin is connected to the surface of the sliding block facing the mold core, the extension direction of the horizontal ejector pin is parallel to the sliding direction of the sliding block where the horizontal ejector pin is located, the upper ejector pin is arranged on the upper mold core, the lower end of the upper ejector pin extends into the forming cavity, the lower ejector pin is arranged on the lower mold core, the upper end of the lower ejector pin extends into the forming cavity.

[0009] When the mold is closed, the upper ejector pin and the lower ejector pin lift the metal pipe placed in the forming cavity, and the sliding block slides towards the mold core, so that the end of the horizontal ejector pin extends into the forming cavity and is tightly inserted into the pipe opening of the metal pipe.

[0010] Preferably, the automobile sun visor connecting shaft injection mold further comprises a driving unit for driving the sliding block to slide, the driving unit comprises a shovel which is movably arranged on the upper mold plate, the lower end of the shovel extends obliquely and extends into the sliding cavity, and the sliding block is provided with an inclined surface which matches and abuts against the lower end of the shovel, when the shovel moves downward, the sliding block can be driven to slide towards the mold core by the cooperation between the lower end of the shovel and the inclined surface.

[0011] Further preferably, the sliding block is provided with a through groove which penetrates the sliding block in the up-down direction, the through groove extends obliquely downward and outward, the lower end of the shovel is slidably embedded in the through groove, and the inclined surface is the inner wall surface of the through groove.

[0012] Further preferably, the side surface of the lower end of the shovel towards the inclined surface is embedded with a wear-resistant plate which abuts against the inclined surface.

[0013] Further preferably, the cross section of the lower end of the shovel is rectangular.

[0014] Further preferably, the driving unit further comprises a reset hole and a reset spring, the reset hole is formed in the end surface of the sliding block facing the mold core, the reset hole is a blind hole, the reset spring is arranged in the reset hole, one end of the reset spring abuts against the bottom wall of the reset hole, and the other end of the reset spring abuts against the end surface of the lower mold core, and the reset spring has a tendency to drive the sliding block to move away from the mold core.

[0015] Preferably, the two sides of the sliding block are provided with stepped surfaces, the bottom wall of the second groove is connected with a pressing block, and one end of the pressing block abuts against the stepped surface.

[0016] Further preferably, the briquette is a copper-based graphite briquette.

[0017] Preferably, the slider is provided with a horizontal through groove towards the end face of the mold core, the extending direction of the horizontal through groove is perpendicular to the sliding direction of the slider, the cross section of the horizontal through groove is in the shape of a Chinese character, the slot width of the horizontal through groove is greater than the groove bottom width, the horizontal ejector pin is a big head end with a variable diameter towards the end of the slider, and the big head end is slidably embedded in the installation groove.

[0018] Preferably, the automobile sun visor connecting shaft injection mold further comprises a push plate movably arranged above the upper die plate, and the upper end of the shovel extends out of the upper die plate and is connected with the push plate.

[0019] Compared with the prior art, the automobile sun visor connecting shaft injection mold has the following advantages due to the technical scheme:

[0020] The automobile sun visor connecting shaft injection mold provided by the utility model has the characteristics that the mold core is embedded in the mold core cavity, the L-shaped forming cavity is arranged in the mold core, the slider is horizontally slidably arranged in the sliding cavity and is aligned with the forming cavity, the extending direction of the forming cavity is parallel to the sliding direction of the slider, the horizontal ejector pin is connected to the surface of the slider towards the mold core, the extending direction of the horizontal ejector pin is parallel to the sliding direction of the slider, the upper ejector pin and the lower ejector pin are arranged in the forming cavity, and the upper end of the upper ejector pin and the lower end of the lower ejector pin extend into the forming cavity. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a perspective view of the automobile sun visor connecting shaft in the prior art.

[0022] Figure 2 is Figure 1 a front view.

[0023] Figure 3 is Figure 2 a sectional view in the A-A direction of

[0024] Figure 4 is a perspective view of the preferred embodiment of the utility model.

[0025] Figure 5 is Figure 4 a front view.

[0026] Figure 6 is Figure 5 is a sectional view in the direction of B-B.

[0027] Figure 7 is Figure 4 is a perspective view of the lower die plate.

[0028] Figure 8 is Figure 7 is a schematic view after the connecting shaft of the sun visor of the car is hidden.

[0029] Figure 9 is Figure 7 is an enlarged perspective view of the slider.

[0030] Figure 10 is Figure 9 is an assembly exploded schematic view of the.

[0031] wherein: 1. connecting shaft; 2. metal pipe; 10. lower die plate; 11. first recess; 12. second recess;

[0032] 121. pressing block; 20. upper die plate; 21. third recess; 22. fourth recess; 31. lower die core; 311. lower ejector pin;

[0033] 32. upper die core; 321. upper ejector pin; 322. shovel; 40. slider; 41. horizontal ejector pin; 411. large head end;

[0034] 42. inclined surface; 43. through groove; 44. wear plate; 45. reset hole; 46. reset spring; 47. step surface; 48. horizontal through groove; 50. die core cavity; 60. sliding cavity; 70. forming cavity; 80. push plate. DETAILED DESCRIPTION

[0035] As Figures 4 to 10As shown, the utility model provides a car sun shield connecting pivot injection mold, include: lower die plate 10, upper die plate 20, die, wherein, the upper surface of lower die plate 10 is equipped with first recess 11, second recess 12, second recess 12 has a plurality of, a plurality of second recess 12 all with first recess 11 interpenetration, upper die plate 20 can be set in the upper of lower die plate 10 moves up and down, the lower surface of upper die plate 20 is equipped with third recess 21 and fourth recess 22, third recess 21 is correspondingly set with first recess 11 and jointly constitutes die cavity 50, fourth recess 22 has a plurality of and is correspondingly set with second recess 12, a plurality of fourth recess 22 all with third recess 21 interpenetration, fourth recess 22 and its corresponding second recess 12 jointly constitute sliding cavity 60, die is set in die cavity 50, and the L shape of the die is equipped with for forming car sun shield connecting pivot 1 forming cavity 70, and the die includes the lower die 31 of being embedded in first recess 11 and the upper die 32 of being embedded in third recess 21, and forming cavity 70 is located at the junction surface of upper die 32 and lower die 31, and the end of forming cavity 70 penetrates the side of die and is interpenetrated with sliding cavity 60, the utility model still includes sliding block 40, horizontal ejector pin 41, upper ejector pin 321 and lower ejector pin 311, sliding block 40 can be set in sliding cavity 60 and aligns the end of forming cavity 70 and slides horizontally, the sliding direction of sliding block 40 is parallel to the extension direction of the end of forming cavity 70 that it aligns, horizontal ejector pin 41 is connected in the surface of sliding block 40 towards die, and its extension direction is parallel to the sliding direction of the sliding block 40 that it is in, upper ejector pin 321 is threaded on upper die 32, and the lower end of upper ejector pin 321 extends into forming cavity 70, lower ejector pin 311 is threaded on lower die 31, and the upper end of lower ejector pin 311 extends into forming cavity 70, when clamping, upper ejector pin 321, lower ejector pin 311 will put the metal pipe 2 in forming cavity 70 and lift, make its end hang in the air, sliding block 40 again slides towards the direction close to die, make the end of horizontal ejector pin 41 extend into forming cavity 70 and be inserted tightly in the pipe orifice of metal pipe 2, discarded the manual mode of embedding block, convenient operation, accurate positioning, high injection efficiency.

[0036] In the embodiment, the car sun shield connecting pivot injection mold further includes a driving unit for driving the sliding block 40 to slide, and the driving unit includes a shovel 322 movably threaded on the upper die plate 32. The lower end of the shovel 322 extends obliquely and extends into the sliding cavity 60. The sliding block 40 is provided with an inclined surface 42 matching and abutting the lower end of the shovel 322. When the shovel 322 moves downward, the sliding block 40 can be driven to slide toward the die by the cooperation of the lower end of the shovel 322 and the inclined surface 42.

[0037] To improve the stability of the shovel 322 driving the slider 40 to slide, in the embodiment, the slider 40 is provided with a through groove 43 penetrating the slider 40 in the up-down direction, the through groove 43 extends downward and outward, the lower end of the shovel 40 is slidably embedded in the through groove 43, and the inclined surface 42 is the inner wall surface of the through groove 43.

[0038] To improve wear resistance and avoid shaking, in the embodiment, the cross section of the lower end of the shovel 322 is rectangular, and the side surface of the lower end of the shovel 322 towards the inclined surface 42 is embedded with a wear-resistant plate 44, which is in close contact with the inclined surface 42.

[0039] To facilitate resetting, the driving unit further includes a reset hole 45 and a reset spring 46, the reset hole 45 is opened on the end surface of the slider 40 towards the mold core, the reset hole 45 is a blind hole, the reset spring 46 is arranged in the reset hole 45, one end of the reset spring 46 abuts against the bottom wall of the reset hole 45, the other end abuts against the end surface of the lower mold core 31, and the reset spring 46 has a tendency to drive the slider 40 to move away from the mold core.

[0040] To ensure that the slider 40 slides in close contact with the bottom wall of the second groove 12, in the embodiment, the two sides of the slider 40 are provided with stepped surfaces 47, the bottom wall of the second groove 12 is connected with a pressing block 121, one end of the pressing block 121 is in close contact with the stepped surface 47, and further, the pressing block 121 is a copper-based graphite block.

[0041] To facilitate the connection and movement of the horizontal ejector pin 41, in the embodiment, the end surface of the slider 40 towards the mold core is provided with a horizontal through groove 48, the extension direction of the horizontal through groove 48 is perpendicular to the sliding direction of the slider 40, the cross section of the horizontal through groove 48 is in the shape of a convex character, the slot opening of the horizontal through groove 48 is wider than the slot bottom, the end of the horizontal ejector pin 41 towards the slider 40 is a large head end 411 with a variable diameter, and the large head end 411 is slidably embedded in the installation groove 48.

[0042] To facilitate the movement of the shovel 322, in the embodiment, the automobile sun visor connecting shaft injection mold further includes a push plate 80 movably arranged above the upper mold plate 20, and the upper end of the shovel 322 extends out of the upper mold plate 20 and is connected with the push plate 80.

[0043] It should be noted that there are multiple upper ejector pins 321 and lower ejector pins 311, the end surface of the upper ejector pin 321 and the lower ejector pin 311 extending into the forming cavity 70 is a circular arc surface to fit the outer wall of the metal pipe 2, and the depth of the upper ejector pin 321 and the lower ejector pin 311 extending into the forming cavity 70 is set according to the outer diameter of the metal pipe 2, so as to ensure that the axis of the metal pipe 2 coincides with the axis of the forming cavity 70 after the mold is closed.

[0044] The automobile sun shield connecting rotating shaft injection mold can be used for rough positioning through the upper and lower ejector rods when the metal pipe is placed, and the end of the metal pipe is suspended, and then the push plate moves up and down relative to the upper mold plate, so that the shovel moves up and down, thereby driving the sliding block to slide horizontally, and the horizontal ejector rod is tightly pressed against or separated from the metal pipe, precise positioning is realized, the positioning is accurate, the embedded block does not need to be placed manually, the operation is convenient, the efficiency is high, the mold pressing phenomenon can be avoided greatly, and the service life of the injection mold is prolonged.

[0045] The above examples are only for illustrating the technical concept and characteristics of the utility model, the purpose is to enable the person skilled in the art to understand the content of the utility model and to implement it, and it cannot limit the protection scope of the utility model, and equivalent changes or modifications made according to the spirit and essence of the utility model should be covered in the protection scope of the utility model.

Claims

1. An injection mold for a car sun visor connecting shaft, comprising: The lower template has a first groove and a second groove on its upper surface. There are multiple second grooves, and all of the multiple second grooves are in communication with the first groove. The upper template is movably disposed above the lower template. The lower surface of the upper template is provided with a third groove and a fourth groove. The third groove is corresponding to the first groove and together they form a mold cavity. There are multiple fourth grooves, each corresponding to a second groove. All of the multiple fourth grooves are connected to the third groove. The fourth groove and its corresponding second groove together form a sliding cavity. The mold core is disposed in the mold core cavity, and the mold core is provided with an L-shaped forming cavity for forming the connecting shaft of the car sun visor. The mold core includes a lower mold core embedded in the first groove and an upper mold core embedded in the third groove. Its features are: The end of the molding cavity passes through the side of the mold core and communicates with the sliding cavity. The injection mold for the car sun visor connecting shaft also includes a slider, a horizontal ejector pin, an upper ejector pin, and a lower ejector pin. The slider is horizontally slidably disposed in the sliding cavity and aligned with the end of the molding cavity. The sliding direction of the slider is parallel to the extension direction of the end of the molding cavity it is aligned with. The horizontal ejector pin is connected to the surface of the slider facing the mold core, and its extension direction is parallel to the sliding direction of the slider it is located on. The upper ejector pin passes through the upper mold core, and the lower end of the upper ejector pin extends into the molding cavity. The lower ejector pin passes through the lower mold core, and the upper end of the lower ejector pin extends into the molding cavity. During mold closing, the upper ejector pin and the lower ejector pin lift the metal tube placed in the molding cavity, and the slider slides towards the mold core, so that the end of the horizontal ejector pin extends into the molding cavity and is inserted into the opening of the metal tube.

2. The injection mold for the connecting shaft of an automotive sun visor according to claim 1, characterized in that: The injection mold for the connecting shaft of the car sun visor also includes a drive unit for driving the slider to slide. The drive unit includes a shovel that can move up and down through the upper template. The lower end of the shovel extends obliquely and into the sliding cavity. The slider is provided with an inclined surface that matches and fits with the lower end of the shovel. When the shovel moves downward, the slider can be driven to slide closer to the mold core through the cooperation between the lower end of the shovel and the inclined surface.

3. The injection mold for the connecting shaft of an automotive sun visor according to claim 2, characterized in that: The slider is provided with a through groove that runs through the slider in the vertical direction. The through groove extends downward and outward at an angle. The lower end of the shovel is slidably embedded in the through groove. The inclined surface is the inner wall surface of the through groove.

4. The injection mold for the connecting shaft of an automotive sun visor according to claim 3, characterized in that: A wear-resistant plate is embedded in the side of the lower end of the shovel facing the inclined surface, and the wear-resistant plate is kept in close contact with the inclined surface.

5. The injection mold for the connecting shaft of an automotive sun visor according to claim 2, characterized in that: The cross-section of the lower end of the shovel is rectangular.

6. The injection mold for the connecting shaft of an automotive sun visor according to claim 2, characterized in that: The drive unit also includes a reset hole and a reset spring. The reset hole is opened on the end face of the slider facing the mold core. The reset hole is a blind hole. The reset spring is disposed in the reset hole. One end of the reset spring abuts against the bottom wall of the reset hole, and the other end abuts against the end face of the lower mold core. The reset spring has the tendency to drive the slider to move away from the mold core.

7. The injection mold for the connecting shaft of an automotive sun visor according to claim 1, characterized in that: The slider has stepped surfaces on both sides, and a pressure block is connected to the bottom wall of the second groove. One end of the pressure block is attached to the stepped surface.

8. The injection mold for the connecting shaft of an automotive sun visor according to claim 7, characterized in that: The compressed block is a copper-based graphite block.

9. The injection mold for the connecting shaft of an automotive sun visor according to claim 1, characterized in that: The slider has a horizontal through groove on its end face facing the mold core. The extension direction of the horizontal through groove is perpendicular to the sliding direction of the slider. The cross-section of the horizontal through groove is convex. The width of the groove opening is greater than the width of the groove bottom. The end of the horizontal ejector pin facing the slider is a large end with an increased diameter. The large end is slidably embedded in the mounting groove.

10. The injection mold for the connecting shaft of an automotive sun visor according to claim 2, characterized in that: The injection mold for the car sun visor connecting shaft also includes a push plate that can be moved up and down above the upper template, and the upper end of the shovel extends out of the upper template and is connected to the push plate.

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