Injection mold for automobile support with threaded sleeve embedded part

Abstract

The application discloses an injection mold for an automobile support with a threaded sleeve embedded part, which comprises an upper mold, a lower mold and a positioning piece, the positioning piece is arranged in a lower cavity formed in the lower mold and an inner threaded sleeve can be adaptively sleeved with the positioning piece, the upper mold is located above the lower mold and can move downward to combine with the lower mold, when the upper mold and the lower mold are combined, an upper cavity formed in the upper mold and the lower cavity form an automobile support forming cavity, the positioning piece is composed of two symmetrically arranged positioning plates, a driving mechanism is arranged on the inner bottom wall of the lower cavity and located between the two positioning plates, and the driving mechanism drivingly connects the two positioning plates to drive the two positioning plates to move close to or away from each other in the horizontal direction; in the injection mold for the automobile support with the threaded sleeve embedded part, when the two arc-shaped positioning plates which can move close to or away from each other move to the state that the axes of the two arc-shaped positioning plates are collinear, the threaded sleeve is sleeved and fixed on the outer sides of the two arc-shaped positioning plates, so that displacement of the threaded sleeve during pouring is avoided, and the subsequent installation and use of the support are affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of injection mold, in particular to an injection mold for automobile support with threaded sleeve embedded parts. BACKGROUND

[0002] In the use of automobile support after injection molding, in order to facilitate its installation on the car, threaded sleeve embedded parts can be set before injection molding to facilitate the subsequent installation of injection molded support through threaded sleeves. The position of the threaded sleeve needs to be one-to-one corresponding to the device assembly hole installed thereon. Therefore, when placing the threaded sleeve embedded part, it needs to be accurately positioned to avoid the threaded sleeve moving under the action of the external force of the injection molding material during injection molding, resulting in that the threaded sleeve on the support cannot be one-to-one corresponding to the device assembly hole installed thereon during subsequent installation. SUMMARY

[0003] To solve the technical problems in the background art, the present application provides an injection mold for automobile support with threaded sleeve embedded parts.

[0004] The injection mold for automobile support with threaded sleeve embedded parts provided by the present application comprises an upper mold, a lower mold and a positioning part. The positioning part is arranged in the lower cavity of the lower mold and the inner threaded sleeve can be adaptively connected to the positioning part. The upper mold is located above the lower mold and can move downward to combine with the lower mold. When the upper mold and the lower mold are combined, the upper cavity of the upper mold and the lower cavity form an automobile support forming cavity.

[0005] Preferably, the positioning part is composed of two symmetrically arranged positioning plates. A driving mechanism is arranged on the inner bottom wall of the lower cavity between the two positioning plates, and the driving mechanism drives and connects the two positioning plates to drive the two positioning plates to move closer or farther in the horizontal direction.

[0006] Preferably, the two positioning plates are in arc shape, and the driving mechanism can drive the two arc-shaped positioning plates to move to the same axis. The diameter of the positioning plate is equal to the inner diameter of the inner threaded sleeve.

[0007] Preferably, the bottom end of the positioning plate has a guide part extending in the horizontal movement direction thereof. A first sliding groove is arranged on the inner bottom wall of the lower cavity in the movement direction of the positioning plate, and the guide part is adaptively inserted into the first sliding groove.

[0008] Preferably, a first air hole is arranged on the inner wall of the lower cavity, and the first air hole is located at the outer circle of the inner threaded sleeve sleeved on the positioning part. The first sliding groove is in communication with the first air hole, and when the axes of the two positioning plates are in the same line, the guide part blocks the first air hole.

[0009] Preferably, a second air hole is arranged on the inner top wall of the upper cavity, and the second air hole is located at the outer circle of the inner threaded sleeve sleeved on the positioning part.

[0010] Preferably, the number of the second air vents is two, and a second sliding groove in communication with the two second air vents is further formed in the inner wall of the upper cavity, two sliding blocks are horizontally inserted into the second sliding groove, a horizontal reset spring is fixed between the two sliding blocks, and the two sliding blocks block the two second air vents in the natural state of the reset spring, and the two sliding blocks can be close to each other to be out of position with the second air vents to make the second air vents open.

[0011] Preferably, the top end of the positioning plate has an insertion part, and the bottom wall of the sliding block has an insertion slot vertically matched with the insertion part, and when the axes of the two positioning plates are collinear, the insertion part can enter the insertion slot vertically.

[0012] Preferably, the top end of the positioning plate is inclined to the axis direction thereof.

[0013] 1、The automobile support injection mold with a threaded sleeve pre-embedded part provided in the application, when two arc-shaped positioning plates that can approach or move away from each other are moved to be collinear in axis, the threaded sleeve is sleeved and fixed on the outer side of the two positioning plates, so that displacement of the threaded sleeve during pouring is avoided, and the subsequent installation and use of the support are affected.

[0014] 2、The automobile support injection mold with a threaded sleeve pre-embedded part provided in the application, the two positioning plates can also approach each other to separate the positioning plate from the threaded sleeve, so that the threaded sleeve is sleeved on the outer side of the positioning part, after pouring is completed, the two positioning plates approach each other, the positioning plate is separated from the inner wall of the threaded sleeve, and the support is separated from the positioning part.

[0015] 3、The automobile support injection mold with a threaded sleeve pre-embedded part provided in the application, when the two positioning plates approach each other, the guide part on the positioning plate is separated from the first air vent, the first air vent is open, and the positioning plate drives the two sliding blocks to be separated from the second air vent through the insertion part, external air enters between the support and the mold through the first air vent and the second air vent, and the support is separated from the mold. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure sectional view when the axes of the two positioning plates in the automobile support injection mold with a threaded sleeve pre-embedded part provided in the application are collinear.

[0017] Figure 2 It is an enlarged schematic view of the structure at A in the automobile support injection mold with a threaded sleeve pre-embedded part provided in the application. Figure 1

[0018] Figure 3 It is a whole structure sectional view when the axes of the two positioning plates in the automobile support injection mold with a threaded sleeve pre-embedded part provided in the application are not collinear.

[0019] Figure 4 ​A three-dimensional structure schematic diagram of a positioning piece of an injection mold for an automobile support with a threaded sleeve embedded part is provided. DETAILED DESCRIPTION

[0020] Reference Figure 1 The injection mold for the automobile support with the threaded sleeve embedded part comprises an upper mold 1, a lower mold 2, and a positioning piece 3. The positioning piece 3 is arranged in a lower cavity 21 of the lower mold 2 and can be adaptively sleeved with a threaded sleeve 9. The upper mold 1 is located above the lower mold 2 and can move downward to combine with the lower mold 2. When the upper mold 1 combines with the lower mold 2, an upper cavity 11 of the upper mold 1 and the lower cavity 21 form an automobile support forming cavity.

[0021] Before injection molding, the threaded sleeve 9 is sleeved on the positioning piece 3, and then the upper mold 1 combines with the lower mold 2 to perform pouring. It needs to be further explained that the upper mold 1 is connected with an external lifting mechanism to drive the upper mold 1 to move up and down, and a pouring port is arranged on the upper mold 1 or the lower mold 2.

[0022] In the above embodiment, the sum of the height of the upper cavity 11 and the height of the lower cavity 21 is equal to the height of the threaded sleeve 9. When the upper mold 1 combines with the lower mold 2, the top wall of the threaded sleeve 9 is attached to the inner top wall of the upper cavity 11, the bottom wall is attached to the inner bottom wall of the lower cavity 21, and the pouring port is arranged in a staggered manner with the threaded sleeve 9 to avoid the pouring material from entering the threaded sleeve 9.

[0023] In the prior art, to realize the positioning of the threaded sleeve 9, the positioning piece 3 is usually arranged in a cylindrical shape. If the diameter of the cylindrical positioning piece 3 is adapted to the threaded sleeve 9, when the threaded sleeve 9 is sleeved on the positioning piece 3, the axis of the threaded sleeve 9 needs to be aligned with the axis of the cylindrical positioning piece 3 to sleeve it, and the threaded sleeve 9 and the positioning piece 3 have a certain friction in the vertical direction. When the automobile support is discharged after forming, the friction affects the separation of the automobile support from the mold. If the diameter of the cylindrical positioning piece 3 is smaller than the inner diameter of the threaded sleeve 9, the position of the threaded sleeve 9 will be offset, which affects the subsequent installation of the automobile support.

[0024] Reference Figure 1 , Figure 4 To further solve the above problems, the positioning piece 3 is composed of two symmetrically arranged positioning plates 31. A driving mechanism 4 is arranged on the inner bottom wall of the lower cavity 21 and located between the two positioning plates 31. The driving mechanism 4 drives and connects the two positioning plates 31 to drive the two positioning plates 31 to move closer or farther in the horizontal direction.

[0025] When the threaded sleeve 9 needs to be sleeved on the positioning member 3 or the automobile support with the threaded sleeve 9 after forming needs to be separated from the mold, the driving mechanism 4 drives the two positioning plates 31 to move close to each other, at this time, the distance between the outer walls of the two positioning plates 31 is smaller than the inner hole width of the threaded sleeve 9, the inner hole of the threaded sleeve 9 and the two positioning plates 31 have a certain displacement adjustment space, and the outer wall of the positioning plate 31 can not be in contact with the inner hole wall of the threaded sleeve 9, there is no friction in the vertical direction, so as to conveniently sleeve or take off the threaded sleeve 9 on the positioning member 3, and specific reference is made to Figure 3 .

[0026] In the above embodiment, the two positioning plates 31 are in arc shape, and the driving mechanism 4 can drive the two arc-shaped positioning plates 31 to move to the coaxial axis, the diameter of the positioning plate 31 is equal to the inner diameter of the threaded sleeve 9, when pouring is needed, the driving mechanism 4 drives the two arc-shaped positioning plates 31 to move to the coaxial axis, the positioning plate 31 is attached to the inner wall of the threaded sleeve 9, so as to relatively fix the threaded sleeve 9, and specific reference is made to Figure 1 .

[0027] The bottom end of the positioning plate 31 has a guide portion 312 extending along the horizontal movement direction thereof, the inner bottom wall of the lower cavity 21 is provided with a first sliding groove 5 arranged along the movement direction of the positioning plate 31, and the guide portion 312 is adapted to be inserted into the first sliding groove 5, and the arrangement of the guide portion 312 and the first sliding groove 5 plays a guiding role in the movement of the positioning plate 31.

[0028] In addition, when the automobile support after forming needs to be discharged, since the automobile support is attached to the inner wall of the forming cavity when forming, the automobile support and the inner wall of the forming cavity are in a negative pressure state, the negative pressure is similar to a suction cup, so that the automobile support and the mold have a certain adsorption force and are not easy to separate.

[0029] To solve the above problem, the inner wall of the lower cavity 21 is provided with a first air hole 212, and the first air hole 212 is located at the outer circle of the threaded sleeve 9 sleeved on the positioning member 3, the first sliding groove 5 is communicated with the first air hole 212, and when the axes of the two positioning plates 31 are coaxial, the guide portion 312 blocks the first air hole 212, and specific reference is made to Figure 1 When the first air hole 212 is in an open state, specific reference is made to Figure 3 , the external air enters between the support and the mold, and the pressure between the support and the mold returns to the normal pressure state, so as to facilitate the separation of the support and the lower mold 2.

[0030] Similarly, to facilitate the separation of the support and the upper mold 1, a second air hole 111 is provided on the inner top wall of the upper cavity 11, and the second air hole 111 is located at the outer circle of the threaded sleeve 9 sleeved on the positioning member 3.

[0031] The second air vent 111 is two in number, and a second sliding groove 6 in communication with the two second air vents 111 is further arranged on the inner wall of the upper cavity 11, two sliding blocks 7 are horizontally inserted into the second sliding groove 6, a horizontal reset spring 8 is arranged between the two sliding blocks 7, and the two sliding blocks 7 are blocked in the natural state of the reset spring 8, and the two sliding blocks 7 can be close to each other to be out of position with the second air vent 111 to make the second air vent 111 open.

[0032] In order to realize the mutual approach of the two sliding blocks 7, the top end of the positioning plate 31 is provided with an insertion part 311, and the bottom wall of the sliding block 7 is provided with an insertion groove which is vertically matched with the insertion part 311, when the axes of the two positioning plates 31 are collinear, the insertion part 311 can be vertically inserted into the insertion groove.

[0033] Before pouring, the driving mechanism 4 first drives the axes of the two positioning plates 31 to be collinear to fix the threaded sleeve 9, and then the external lifting mechanism drives the upper mold 1 to move downward, at this time, the insertion part 311 is inserted into the insertion groove, when discharging, the driving mechanism 4 drives the two positioning plates 31 to approach, and the positioning plate 31 drives the two sliding blocks 7 to approach each other through the insertion part 311 to make the second air vent 111 open, so as to facilitate the separation of the support and the upper mold 1.

[0034] In order to further facilitate the threaded sleeve 9 to be sleeved on the positioning piece 3, the top end of the positioning plate 31 is inclined to the axis direction thereof.

[0035] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An injection mold for an automobile bracket with a threaded sleeve pre-embedded part, characterized in that, It includes an upper mold (1), a lower mold (2), and a positioning component (3). The positioning component (3) is arranged in the lower cavity (21) opened on the lower mold (2), and the threaded sleeve (9) can be adapted to be connected to the positioning component (3). The upper mold (1) is located above the lower mold (2) and can move downward to close with the lower mold (2). When the upper mold (1) and the lower mold (2) are closed, the upper cavity (11) opened on the upper mold (1) and the lower cavity (21) form the automobile bracket forming cavity. The positioning component (3) consists of two symmetrically arranged positioning plates (31). A driving mechanism (4) is provided on the inner bottom wall of the lower cavity (21) and between the two positioning plates (31). The driving mechanism (4) drives the two positioning plates (31) to move the two positioning plates (31) closer or further away in the horizontal direction. Both positioning plates (31) are arc-shaped, and the driving mechanism (4) can drive the two arc-shaped positioning plates (31) to move to the collinear axis. The diameter of the positioning plate (31) is equal to the inner diameter of the threaded sleeve (9).

2. The injection mold for an automobile bracket with a threaded sleeve pre-embedded part according to claim 1, characterized in that, The bottom end of the positioning plate (31) has a guide part (312) extending along its horizontal movement direction. The inner bottom wall of the lower cavity (21) is provided with a first slide groove (5) arranged along the movement direction of the positioning plate (31). The guide part (312) is adapted to be inserted into the first slide groove (5).

3. The injection mold for an automobile bracket with a threaded sleeve embedded part according to claim 2, characterized in that, The inner wall of the lower cavity (21) is provided with a first vent hole (212), and the first vent hole (212) is located on the outer ring of the threaded sleeve (9) fitted on the positioning member (3). The first slide groove (5) is connected to the first vent hole (212), and when the axes of the two positioning plates (31) are collinear, the guide part (312) blocks the first vent hole (212).

4. The injection mold for an automobile bracket with a threaded sleeve embedded part according to claim 1, characterized in that, A second vent hole (111) is provided on the inner top wall of the upper cavity (11). The second vent hole (111) is located on the outer ring of the threaded sleeve (9) fitted on the positioning member (3).

5. The injection mold for an automobile bracket with a threaded sleeve embedded part according to claim 3, characterized in that, There are two second vent holes (111). The inner wall of the upper cavity (11) is also provided with a second slide groove (6) that communicates with both second vent holes (111). Two sliders (7) are horizontally slidably inserted in the second slide groove (6). A horizontally arranged return spring (8) is fixed between the two sliders (7). In the natural state of the return spring (8), the two sliders (7) block the two second vent holes (111) respectively. The two sliders (7) can also approach each other to a state of misalignment with the second vent holes (111) so that the second vent holes (111) are open.

6. The injection mold for an automobile bracket with a threaded sleeve embedded part according to claim 4, characterized in that, The top of the positioning plate (31) has a plug-in part (311), and the bottom wall of the slider (7) has a plug-in groove that is adapted to plug in the plug-in part (311) in the vertical direction. When the axes of the two positioning plates (31) are collinear, the plug-in part (311) can enter the plug-in groove in the vertical direction.

7. The injection mold for an automobile bracket with a threaded sleeve embedded part according to claim 1, characterized in that, The top of the positioning plate (31) is inclined in the direction of its axis.

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