Side wing buckle demolding mold core assembly of T-shaped steering wheel upper shell injection mold

Abstract

The utility model relates to a side wing buckle demolding mold core assembly of a T-shaped steering wheel upper shell injection mold, which comprises a front mold core, a rear mold core, a front mold elastic block assembly and a rear mold wedge block assembly, the front mold elastic block assembly comprises a front mold elastic block, a front mold spring and a shoveling machine, and the front mold spring applies elastic force towards the rear mold core to the front mold elastic block; the rear mold wedge block assembly comprises a rear mold guide block and a rear mold wedge block, the rear mold guide block is provided with a shovel hole, the front side of the rear mold wedge block is provided with a rear mold hook, the rear end of the front mold spring is provided with a front mold hook, the front mold hook and the rear mold hook are engaged during mold closing, the opening direction of the front mold hook faces the side wing outer edge strip buckle, and the opening direction of the rear mold hook is opposite to the opening direction of the front mold hook; and the opening of the front mold hook is a V-shaped opening. According to the utility model, the front mold elastic block and the rear mold wedge block are in the initial stage of mold opening, and the front mold elastic block demolds after the front mold core, so that the side wing inner edge strip demolds before the side wing outer edge strip, and the buckle is prevented from being strained during simultaneous demolding.

Description

Technical Field

[0001] The utility model relates to an injection mold, in particular to a side wing buckle demoulding mold core component of an injection mold for an upper shell of a T-shaped steering wheel. Background Art

[0002] The steering wheel is an important component in a car. To facilitate the observation of the instruments, the steering wheel is usually hollowed out. The three-point structure of the outer ring and the center of the steering wheel not only ensures the connection strength of the steering wheel, but also allows multimedia keys to be set on both sides of the center of the steering wheel for easy use. For safety reasons, an airbag is usually set in the center of the steering wheel upper shell to facilitate product coordination and prevent the airbag from protruding too much. The two wings of the steering wheel upper shell protrude upward. At the same time, for aesthetic and safety reasons, the edge of the steering wheel upper shell is usually connected to the rear shell of the steering wheel using a snap-on method. This results in the opening direction of the outer and inner side strips of the side wings being non-flat, and traditional injection molds are very likely to damage the snaps during mold opening. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a side wing buckle demoulding mold core component of a T-shaped steering wheel upper shell injection mold.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a side wing buckle demoulding mold core component of a T-shaped steering wheel upper shell injection mold, comprising a front mold core, a rear mold core, a front mold spring block component, and a rear mold wedge block component, the front mold spring block component comprising a front mold spring block slidably connected to the front mold core, a front mold spring connecting the front mold spring block and the front mold core, and a shovel fixedly connected to the front mold core, the front mold spring exerts an elastic force toward the rear mold core on the front mold spring block, the sliding direction of the front mold spring block points to the rear mold core and is along the extension direction of the buckle of the side wing outer edge strip formed by the front mold spring block; The rear mold wedge block assembly includes a rear mold guide block, a rear mold wedge block slidingly connected to the rear mold guide block through a T-shaped groove, the rear mold guide block is provided with a shovel hole that cooperates with the shovel machine, the rear mold wedge block is slidably connected to the rear mold core and the sliding direction extends along the extension direction of the side wing inner edge strip buckle, the front side of the rear mold wedge block is provided with a rear mold hook, the rear end of the front mold spring is provided with a front mold hook, the front mold hook and the rear mold hook are engaged when the mold is closed, the opening direction of the front mold hook is toward the side wing outer edge strip buckle, the opening direction of the rear mold hook is opposite to the opening of the front mold hook, and the opening of the front mold hook is a V-shaped opening.

[0005] As a further improvement of this design, a limit block is provided on the rear side of the front mold core, a guide groove is provided on the side of the front mold spring block, the limit block is provided with a limit claw cooperating with the guide groove, the length of the guide groove is the maximum stroke of the front mold spring block, the guide groove is parallel to the sliding direction of the front mold spring block, and the front mold spring block is slidably connected to the front mold core through a straight hole.

[0006] As a further improvement of this design, the rear mold wedge block includes a rear mold slider that slides with the rear mold guide block, and a rear mold core pulling block that is detachably mechanically connected to the rear mold slider. The rear mold core pulling block is provided with a rear mold core pulling cooling pipe.

[0007] As a further improvement of the present design, a rear hook positioning pit is provided on the front side of the rear mold core pulling block, and the tail of the rear mold hook is embedded in the rear hook positioning pit and is detachably mechanically connected to the rear mold core pulling block.

[0008] The beneficial effect of the present invention is that the front mold spring block and the rear mold wedge block are used in the initial stage of mold opening, so that the front mold spring block is delayed in mold opening before the front mold core, so that the inner edge strips of the side wings are demoulded before the outer edge strips of the side wings, thereby preventing the buckles from being damaged when demoulding at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0010] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0011] Figure 2 It is a three-dimensional schematic diagram of the cooperation between the rear mold wedge block assembly and the front mold spring block assembly of the present utility model.

[0012] Figure 3 It is a cross-sectional schematic diagram of the cooperation between the rear mold wedge block assembly and the front mold spring block assembly of the present utility model.

[0013] Figure 4 It is a three-dimensional schematic diagram of the cooperation between the steering wheel wing, the rear mold wedge assembly and the front mold spring block assembly of the present invention.

[0014] In the figure, 1. front mold core, 2. rear mold core, 3. rear mold wedge assembly, 30. rear mold guide block, 31. rear mold wedge, 310. rear mold slider, 311. rear mold core pulling block, 312. rear mold core pulling cooling pipe, 32. rear mold hook, 33. rear hook positioning pit, 34. shovel hole, 4. front mold spring assembly, 40. shovel machine, 41. front mold spring, 42. front mold spring, 43. guide groove, 44. limit block, 440. limit claw, 45. front mold hook, 5. steering wheel side wing, 50. side wing inner edge strip, 51. side wing outer edge strip. DETAILED DESCRIPTION

[0015] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The exemplary embodiments and descriptions are only used to explain the present invention but are not intended to limit the present invention.

[0016] Example: See Figure 1 、 Figure 2 as well as Figure 3 The present embodiment provides a side wing buckle demoulding mold core assembly of a T-shaped steering wheel upper shell injection mold, comprising a front mold core 1, a rear mold core 2, a front mold spring block assembly 4, and a rear mold wedge block assembly 3. The front mold spring block assembly 4 comprises a front mold spring block 42 slidably connected to the front mold core 1, a front mold spring 41 connecting the front mold spring block 42 and the front mold core 1, and a shovel 40 fixedly connected to the front mold core 1. The front mold spring 41 applies an elastic force toward the rear mold core 2 to the front mold core 2. The sliding direction of the front mold spring block 42 points to the rear mold core 2 and is along the buckle extension direction of the side wing outer edge strip 51 formed by the front mold spring block 42; the rear mold wedge block assembly 3 includes a rear mold guide Block 30, a rear mold wedge block 31 that is slidably connected to the rear mold guide block 30 through a T-shaped groove, the rear mold guide block 30 is provided with a shovel hole 34 that cooperates with the shovel machine 40, the rear mold wedge block 31 is slidably connected to the rear mold core 2 and the sliding direction extends along the extension direction of the side wing inner edge strip 50 snap-on, the front side of the rear mold wedge block 31 is provided with a rear mold hook 32, the rear end of the front mold spring 41 is provided with a front mold hook 45, the front mold hook 45 and the rear mold hook 32 are engaged when the mold is closed, the opening direction of the front mold hook 45 is snap-on toward the side wing outer edge strip 51, the opening direction of the rear mold hook 32 is opposite to the opening of the front mold hook 45, and the opening of the front mold hook 45 is a V-shaped opening.

[0017] During the initial mold opening phase, the front mold spring 42 and the rear mold wedge 31 allow the front mold spring 42 to open later than the front mold core 1, allowing the inner wing strip 50 to be released from the mold before the outer wing strip 51. This prevents damage to the buckle due to traditional direct, hard demolding methods. Simultaneously, the front mold hook 45 and the rear mold hook 32 apply a pulling force to the front mold spring 42 during the initial mold opening phase, preventing it from getting stuck. The V-shaped opening of the front mold hook 45 facilitates separation from the rear mold hook 32 when the front mold spring 42 reaches the end of its travel.

[0018] See Figure 2The rear side of the front mold core 1 is provided with a limit block 44, and the side of the front mold spring block 42 is provided with a guide groove 43. The limit block 44 is provided with a limit claw 440 that cooperates with the guide groove 43. The length of the guide groove 43 is equal to the maximum travel of the front mold spring block 42. The guide groove 43 is parallel to the sliding direction of the front mold spring block 42. The front mold spring block 42 is slidably connected to the front mold core 1 through a straight hole. The limit block 44 cooperates with the guide groove 43 on the front mold spring block 42 to limit the travel of the front mold spring block 42, so that the front mold spring block 42 can be demolded from the side wing inner edge strip 50 after demolding. The front mold spring block 42 can be configured as a straight bar to reduce processing and maintenance costs.

[0019] See Figure 3 The rear mold wedge 31 includes a rear mold slider 310 that slidably engages the rear mold guide block 30, and a rear mold core puller 311 that is detachably mechanically connected to the rear mold slider 310. The rear mold core puller 311 is provided with a rear mold core puller cooling duct 312. The rear mold wedge 31 is a split device, reducing maintenance costs. The rear mold core puller cooling duct 312 facilitates faster cooling of the injection molded part and further prevents damage to the buckle.

[0020] See Figure 3 The rear mold core puller block 311 has a rear hook positioning pit 33 on its front side. The tail of the rear mold hook 32 is inserted into the rear hook positioning pit 33 and is detachably connected to the rear mold core puller block 311. The hook positioning pit 33 can offset the lateral force of the rear mold hook 32, effectively protecting the rear mold hook 32 and improving the stability of the rear mold hook 32's positioning accuracy.

[0021] See Figure 4 During operation, the rear mold core 2 moves backward following the rear mold plate, and the front mold core 1 separates from the rear mold core 2. Under the pull of the front mold spring 41 and the rear mold hook 32, the front mold spring 42 moves a certain distance toward the rear mold wedge 31, that is, it slides obliquely toward the inner side strip 50 of the steering wheel side wing 5 and disengages from the outer side strip 51 of the steering wheel side wing 5. Subsequently, the front mold hook 45 disengages from the rear mold hook 32, and the rear mold core 2 continues to move backward. The front mold spring 42 stops at the end of its travel, and the front mold core 1 and the rear mold core 2 are completely separated, completing demolding.

[0022] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A side wing buckle demoulding mold core assembly of a T-shaped steering wheel upper shell injection mold, comprising a front mold core and a rear mold core, characterized in that: The front mold spring block assembly also includes a front mold spring block assembly and a rear mold wedge block assembly, wherein the front mold spring block assembly includes a front mold spring block slidably connected to the front mold core, a front mold spring connecting the front mold spring block and the front mold core, and a shovel fixed to the front mold core, wherein the front mold spring exerts an elastic force toward the rear mold core on the front mold spring block, and the sliding direction of the front mold spring block points to the rear mold core and extends along the buckle direction of the side wing outer edge strip formed by the front mold spring block; the rear mold wedge block assembly includes a rear mold guide block, a rear mold guide block slidably connected to the rear mold guide block through a T-shaped slot A rear mold wedge block and a shovel machine fixedly connected to the front mold core, the rear mold guide block is provided with a shovel hole cooperating with the shovel machine, the rear mold wedge block is slidably connected to the rear mold core and the sliding direction extends along the extension direction of the side wing inner edge strip buckle, the front side of the rear mold wedge block is provided with a rear mold hook, the rear end of the front mold spring is provided with a front mold hook, the front mold hook and the rear mold hook are engaged when the mold is closed, the opening direction of the front mold hook is toward the side wing outer edge strip buckle, the opening direction of the rear mold hook is opposite to the opening of the front mold hook, and the opening of the front mold hook is a V-shaped opening.

2. The side wing buckle demoulding mold core assembly of the T-shaped steering wheel upper shell injection mold according to claim 1, characterized in that: A limit block is provided on the rear side of the front mold core, a guide groove is provided on the side of the front mold spring block, the limit block is provided with a limit claw cooperating with the guide groove, the length of the guide groove is the maximum stroke of the front mold spring block, the guide groove is parallel to the sliding direction of the front mold spring block, and the front mold spring block is slidably connected to the front mold core through a straight hole.

3. The side wing buckle demoulding mold core assembly of the T-shaped steering wheel upper shell injection mold according to claim 1, characterized in that: The rear mold wedge block includes a rear mold slider that slides with the rear mold guide block, and a rear mold core pulling block that is detachably mechanically connected to the rear mold slider. The rear mold core pulling block is provided with a rear mold core pulling cooling pipe.

4. The side wing buckle demoulding mold core assembly of the T-shaped steering wheel upper shell injection mold according to claim 3, characterized in that: A rear hook positioning pit is provided on the front side of the rear mold core-pulling block, and the tail of the rear mold hook is embedded in the rear hook positioning pit and is detachably mechanically connected to the rear mold core-pulling block.

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