Sliding block sleeve spring driving mold and demolding method

Abstract

The invention discloses a sliding block sleeve spring driving mold and a demolding method, the sliding block sleeve spring driving mold comprises a mold with a forming cavity, and a sliding block sleeve spring driving pitched roof is arranged at the edge of the forming cavity corresponding to an inverted buckle position of a formed part; the sliding block sleeve spring driving inclined top comprises a first moving part, a second moving part and inclined top parts arranged between the first moving part and the second moving part side by side, the first moving part and the second moving part can move relative to the forming cavity in the first direction, and one end of each inclined top part penetrates through the first moving part and extends to the forming cavity. The other end of the inclined top part is slidably connected with the second moving part in the second direction perpendicular to the first direction. The first moving part comprises an extrusion inner cavity, and when the first moving part moves by a first stroke in the first direction, the extrusion inner cavity is driven to extrude the inclined top parts, so that the inclined top parts side by side slide in the second direction and do not move in the first direction; when the first moving part moves by a second stroke in the first direction, the second moving part is driven to synchronously move, so that the second moving part drives the side-by-side inclined top parts to move in the first direction, and meanwhile, the extrusion inner cavity does not extrude the inclined top parts to move in the second direction any more; the demolding mechanism can adapt to a narrow mold space to conduct forming and follow-up smooth demolding on an inverted buckle structure of a part, the stroke of the movable part is effectively controlled in the demolding process, and the situation of interference of the movable part is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of injection molds, and particularly relates to a slider sleeve spring-driven mold and a demolding method. Background Art

[0002] In the process of plastic mold design, for parts with undercut structures, in order to facilitate the formation of the undercut structures and subsequent demolding, a structure of a slider sleeve and inclined ejector usually needs to be set at the corresponding positions of the undercuts. In order to ensure the normal operation of the slider sleeve and inclined ejector, an ejector plate is usually designed on the back of the slider for installing the inclined ejector. This results in an increase in the volume of the entire slider sleeve and inclined ejector, and then the size of the template needs to be increased accordingly, causing an increase in the use cost of the mold. At the same time, for the narrow space requirements during the injection process of some parts and to avoid interference of movable parts during the demolding process of the parts, it is required that the volume and movable stroke of the slider sleeve and inclined ejector be as small as possible, and it is also necessary to ensure that the inclined ejector has enough space to separate from the part undercuts, while the existing slider sleeve and inclined ejector structures cannot meet the above requirements.

[0003] Therefore, in view of the requirements of limited space in the injection mold, as small as possible movable part stroke, and ensuring the smooth separation of the inclined ejector from the part undercuts, the present invention discloses a slider sleeve spring-driven mold and a demolding method. Summary of the Invention

[0004] The present invention discloses a slider sleeve spring-driven mold and a demolding method, which can adapt to the narrow mold space to form the undercut structure of the part and subsequent smooth demolding, and effectively control the stroke of the movable parts during the demolding process to avoid the occurrence of interference of the movable parts.

[0005] The present invention is realized by the following technical solutions: A slider sleeve spring-driven mold includes a mold with a forming cavity. At the edge of the forming cavity, a slider sleeve spring-driven inclined ejector is provided corresponding to the undercut position of the formed part. The slider sleeve spring-driven inclined ejector includes a first moving part, a second moving part, and an inclined top part arranged side by side between the first moving part and the second moving part. The first moving part and the second moving part can move relative to the forming cavity along a first direction. One end of the inclined top part passes through the first moving part and extends into the forming cavity, and the other end of the inclined top part is slidably connected to the second moving part along a second direction perpendicular to the first direction. The first moving part includes an extrusion inner cavity. When the first moving part moves a first stroke along the first direction, it drives the extrusion inner cavity to extrude the inclined top part, so that the side-by-side inclined top parts slide along the second direction without moving along the first direction. When the first moving part moves a second stroke along the first direction, it drives the second moving part to move synchronously, so that the second moving part drives the side-by-side inclined top parts to move along the first direction, and at the same time, the extrusion inner cavity no longer extrudes the inclined top part to move along the second direction.

[0006] In the injection molding state, the first moving part moves to the limit position close to the forming cavity along the first direction, and then squeezes and drives the side-by-side inclined tops to approach each other, so that the forming part of the inclined top corresponds to the undercut position of the part. After the injection molding is completed, the first moving part moves the first stroke along the first direction, and the first moving part will not contact the second moving part during the movement of the first stroke, so that the second moving part remains stationary during this process. At this time, the side-by-side inclined tops will not move along the first direction under the tightening action of the second moving part, and at the same time, the side-by-side inclined tops move away from each other along the second direction under the squeezing action of the first moving part, so that the inclined tops are separated from the undercut structure of the part. Then the first moving part continues to move the second stroke along the first direction, and contacts the second moving part during the movement of the first moving part in the second stroke, and then drives the second moving part to move synchronously along the first direction. At this time, the inclined top moves away from the forming cavity along the first direction driven by the second moving part, and at the same time, the first moving part no longer squeezes the inclined top, so that the side-by-side inclined tops remain stationary in the second direction when moving along the first direction, avoiding the collision of the inclined tops with other parts. After the first moving part, the second moving part and the inclined top part are all moved to the demoulding position along the first direction, the parts inside the mold can be safely demoulded.

[0007] In order to better realize the present invention, further, the slider sleeve spring-driven inclined pusher also includes a linear driving part and an elastic resistance part, the linear driving part is used to drive the first moving part to move along the first direction, the elastic resistance part abuts against the end of the second moving part away from the forming cavity, and the elastic resistance part is used to press the second moving part tightly during the process of the first moving part moving the first stroke, so that the second moving part remains stationary in the first direction during the process of the first moving part moving the first stroke; the elastic resistance part no longer presses the second moving part tightly during the process of the first moving part moving the second stroke, so that the first moving part drives the second moving part to move synchronously along the first direction during the process of the first moving part moving the second stroke.

[0008] In order to better realize the present invention, further, the slider sleeve spring-driven inclined ejector also includes a movable template, the top of the movable template is slidably provided with a first movable part and a second movable part along the first direction, and a limiting surface is provided at one end of the movable template close to the forming cavity, and the limiting surface is used to limit the extreme position of the first movable part moving toward the forming cavity.

[0009] To better implement the present invention, further, an inclined groove arranged in a V shape is provided inside the first moving part, the inclined top is slidably fitted inside the inclined groove, the inclined groove includes an inner inclined surface and an outer inclined surface, and an extrusion cavity is formed between the inner inclined surface and the outer inclined surface. When the first moving part moves a first stroke away from the forming cavity along the first direction, the inner inclined surface presses the inclined top, so that the juxtaposed inclined tops move away from each other along the second direction; when the first moving part moves a first stroke closer to the forming cavity along the first direction, the outer inclined surface presses the inclined top, so that the juxtaposed square inclined tops move closer to each other along the second direction.

[0010] To better implement the present invention, further, a T-shaped sliding groove extending along the second direction is provided on one side of the second moving part close to the first moving part, and a T-shaped block slidably connected with the T-shaped sliding groove is provided at one end of the inclined top away from the forming cavity.

[0011] To better implement the present invention, further, a forming part is provided at one end of the inclined top close to the forming cavity corresponding to the undercut position of the part, a forming surface is provided on one side of the first moving part close to the forming cavity, and when the first moving part slides to the limit position along the first direction close to the forming cavity, the forming part and the forming surface are smoothly transitionally connected to form a cavity corresponding to the contour of the undercut structure of the part.

[0012] To better implement the present invention, further, the elastic abutting part includes a guide rod and a spring. One end of the guide rod is connected to the side of the second moving part away from the forming cavity by a screw, the other end of the guide rod is in abutting connection with one end of the spring, and a fixing block is provided at the other end of the spring.

[0013] A demolding method driven by a slider sleeve spring is realized based on a mold driven by a slider sleeve spring. During the process that the first moving part moves a first stroke away from the forming cavity along the first direction, the second moving part remains stationary, so that the juxtaposed inclined tops are stationary in the first direction and move away from each other along the second direction to disengage from the undercut structure of the part; during the process that the first moving part moves a second stroke away from the forming cavity along the first direction, the second moving part is driven to move synchronously along the first direction, so that the juxtaposed inclined tops are stationary along the second direction and move away from the forming cavity along the first direction, and the juxtaposed inclined tops are moved to the demolding position.

[0014] To better implement the present invention, further, it specifically includes the following steps: Step 1: The first moving part moves to the limit position along the first direction close to the forming cavity, presses the juxtaposed inclined tops to move closer to each other along the second direction to the forming position. At this time, the forming part of the inclined top and the forming surface of the first moving part are smoothly transitionally connected to form a cavity matching the undercut structure of the part, and the mold is closed for injection molding; Step 2: After the part is formed, the first moving part moves away from the forming cavity in the first direction by a first stroke, and the second moving part remains stationary, driving the side-by-side inclined tops to move away from each other in the second direction and remain stationary in the first direction, so that the forming parts of the side-by-side inclined tops are separated from the undercut structure of the part; Step 3: The first moving part moves away from the forming cavity in the first direction by a second stroke, driving the second moving part to move synchronously in the first direction, so as to drive the side-by-side inclined tops to move in the first direction and remain stationary in the second direction, so that the side-by-side inclined tops smoothly move to the demolding position; Step 4: The mold is opened, and the ejector pin ejects to drive the part to demold, and the part is taken out; Step 5: The first moving part moves close to the forming cavity in the first direction to the limit position, driving the side-by-side inclined tops and the second moving part to reset, and the mold is closed for the next injection molding.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: In the present invention, the linear driving member drives the first moving part to move by a first stroke, and the second moving part is kept stationary by the elastic abutting member during the first stroke. Then, the first moving part squeezes the side-by-side inclined tops, so that the side-by-side inclined tops move away from each other to smoothly separate from the undercut position of the part; after the inclined tops are separated from the undercut position of the part, the linear driving member continues to drive the first moving part to move by a second stroke to abut against the second moving part, driving the second moving part and the inclined tops to move away from the part, and making the first moving part no longer squeeze the inclined tops. Furthermore, it can adapt to the narrow mold space to smoothly demold the part and effectively avoid the interference of movable parts. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of a mold driven by a slider sleeve spring; Figure 2 It is a cross-sectional view of a slider sleeve spring-driven inclined top; Figure 3 It is a three-dimensional structural diagram of a slider sleeve spring-driven inclined top; Figure 4 It is an installation schematic diagram of the first moving part and the second moving part; Figure 5 It is an installation schematic diagram of the inclined top; Figure 6 It is a connection schematic diagram of the inclined top and the second moving part; Figure 7 It is an internal cross-sectional view of the first moving part.

[0017] Wherein: 1 - moving template; 2 - linear driving member; 3 - elastic abutting member; 4 - first moving part; 5 - inclined top part; 6 - second moving part; 7 - mold; 21 - driving oil cylinder; 22 - adapter seat; 31 - guide rod; 32 - spring; 100 - inclined groove; 101 - inner inclined surface; 102 - outer inclined surface; 200 - limiting surface; 201 - T-shaped sliding groove; 202 - T-shaped block. Detailed implementation mode

[0018] Embodiment 1: A slider sleeve spring-driven mold according to this embodiment, as Figures 1 - 5 shown, includes a mold 7 with a forming cavity. At the edge of the forming cavity, a slider sleeve spring-driven inclined top is arranged corresponding to the undercut position of the forming part. The slider sleeve spring-driven inclined top includes a first moving part 4, a second moving part 6, and an inclined top part 5 arranged side by side between the first moving part 4 and the second moving part 6. The first moving part 4 and the second moving part 6 can move relative to the forming cavity along a first direction. One end of the inclined top part 5 extends through the first moving part 4 to the forming cavity, and the other end of the inclined top part 5 is slidably connected to the second moving part 6 along a second direction perpendicular to the first direction. The first moving part 4 includes an extrusion inner cavity. When the first moving part 4 moves a first stroke along the first direction, it drives the extrusion inner cavity to extrude the inclined top part 5, so that the side-by-side inclined top parts 5 slide along the second direction without moving along the first direction. When the first moving part 4 moves a second stroke along the first direction, it drives the second moving part 6 to move synchronously, so that the second moving part 6 drives the side-by-side inclined top parts 5 to move along the first direction, and at the same time, the extrusion inner cavity no longer extrudes the inclined top part 5 to move along the second direction. The slider sleeve spring-driven inclined top further includes a linear driving part 2 and an elastic abutting part 3. The linear driving part 2 is used to drive the first moving part 4 to move along the first direction. The elastic abutting part 3 abuts against one end of the second moving part 6 away from the forming cavity. The elastic abutting part 3 is used to press tightly against the second moving part 6 during the process of the first moving part 4 moving the first stroke, so that the second moving part 6 remains stationary in the first direction during the process of the first moving part 4 moving the first stroke. The elastic abutting part 3 no longer presses tightly against the second moving part 6 during the process of the first moving part 4 moving the second stroke, so that the first moving part 4 drives the second moving part 6 to move synchronously along the first direction during the process of the first moving part 4 moving the second stroke.

[0019] When the first moving part 4 moves to the left extreme position along the first direction, the extrusion inner cavity inside the first moving part 4 extrudes the side-by-side inclined top parts 5, driving the side-by-side inclined top parts 5 to approach each other along the second direction, so that the forming part of the inclined top part 5 extending to one side of the forming cavity cooperates with the forming cavity to form an inner cavity for injection molding, and the forming part of the inclined top part 5 is arranged corresponding to the undercut structure of the part. After the mold 7 is closed, injection molding operation can be carried out. The part is formed in the forming cavity, and an undercut structure is formed at the inclined top part 5.

[0020] When demolding, the first moving part 4 moves away from the forming cavity in the first direction for a first stroke. During the process of the first moving part 4 moving the first stroke, the second moving part 6 remains stationary to press against one end of the inclined top part 5 away from the forming cavity. At this time, the juxtaposed inclined top parts 5 move away from each other in the second direction under the extrusion of the extrusion inner cavity of the first moving part 4, so that the inclined top parts 5 are separated from the undercut structure of the part. At the same time, the inclined top parts 5 will not move in the first direction under the pressing action of the second moving part 6. After the inclined top parts 5 are completely separated from the undercut structure of the part, the first moving part 4 continues to move away from the forming cavity in the first direction for a second stroke. At this time, the first moving part 4 abuts against the second moving part 6 and drives the second moving part 6 to move synchronously along the first direction. At this time, the inclined top parts 5 move away from the forming cavity in the first direction under the drive of the second moving part 6. At the same time, the extrusion inner cavity of the first moving part 4 no longer extrudes the inclined top parts 5, so that the juxtaposed inclined top parts 5 remain relatively stationary in the second direction until the first moving part 4, the second moving part 6, and the inclined top parts 5 move away from the forming cavity to the demolding position. At this time, the part can be ejected from the inside of the forming cavity through the ejector pin to realize the complete demolding of the part.

[0021] Further, the slider sleeve spring-driven inclined top further includes a moving template 1. The top of the moving template 1 is slidably provided with a first moving part 4 and a second moving part 6 along the first direction. One end of the moving template 1 close to the forming cavity is provided with a limiting surface, and the limiting surface is used to limit the limit position of the first moving part 4 moving towards the forming cavity.

[0022] A chute or a guide rod is arranged on the top of the moving template 1 along the first direction. The first moving part 4 and the second moving part 6 are slidably connected with the chute or the guide rod, so that the first moving part 4 and the second moving part 6 can move away from or close to the forming cavity along the first direction. At the same time, a limiting surface is arranged on the left side of the moving template 1. When the first moving part 4 slides to the limit position along the first direction and approaches the forming cavity, it contacts the limiting surface, so that the first moving part 4 cannot continue to move closer to the forming cavity.

[0023] Further, the linear driving part 2 includes a driving oil cylinder 21 and an adapter seat 22. The end of the push rod of the driving oil cylinder 21 is connected to the bottom of the adapter seat 22. One side of the adapter seat 22 close to the part is connected to the first moving part 4.

[0024] Embodiment 2: This embodiment is further optimized on the basis of Embodiment 1, such as Figure 7As shown, an inclined groove 100 arranged in a V shape is provided inside the first moving part 4. The inclined top part 5 is slidably arranged inside the inclined groove 100. The inclined groove 100 includes an inner inclined surface 101 and an outer inclined surface 102. An extrusion cavity is formed between the inner inclined surface 101 and the outer inclined surface 102. When the first moving part 4 moves away from the forming cavity along the first direction for a first stroke, the inner inclined surface 101 extrudes the inclined top part 5, so that the juxtaposed inclined top parts 5 move away from each other along the second direction; when the first moving part 4 moves close to the forming cavity along the first direction for a first stroke, the outer inclined surface 102 extrudes the inclined top part 5, so that the juxtaposed square inclined tops 5 move close to each other along the second direction.

[0025] During the process that the first moving part 4 moves away from the part along the first direction for a first stroke, the inner inclined surface 101 extrudes the inner side of the inclined top part 5, so that the juxtaposed inclined top parts 5 move away from each other, thereby realizing the separation of the inclined top part 5 from the undercut structure of the part. During the process that the first moving part 4 moves close to the part along the first direction, the outer inclined surface 102 extrudes the outer side of the inclined top part 5, so that the juxtaposed inclined top parts 5 move close to each other, realizing the reset of the inclined top part 5.

[0026] Other parts of this embodiment are the same as those of Embodiment 1, so they will not be described in detail.

[0027] Embodiment 3: On the basis of the above Embodiment 1 or 2, this embodiment is further optimized. As Figure 6 shown, a T-shaped sliding groove 201 extending along the second direction is provided on one side of the second moving part 6 close to the first moving part 4. A T-shaped block 202 slidably connected with the T-shaped sliding groove 201 is provided at one end of the inclined top part 5 far from the forming cavity. The T-shaped sliding groove 201 is arranged along the second direction, and the T-shaped block 202 is slidably connected with the T-shaped sliding groove 201 along the second direction, so that the inclined top part 5 can move relative to the second moving part 6 along the second direction, thereby realizing the mutual close movement or mutual separation movement of the juxtaposed square inclined tops 5.

[0028] Furthermore, a limiting surface 200 is provided on one side of the second moving part 6 close to the first moving part 4. When the first moving part 4 moves along the first direction until it contacts the limiting surface 200, the first moving part 4 can drive the second moving part 6 to move synchronously along the first direction.

[0029] Other parts of this embodiment are the same as those of the above Embodiment 1 or 2, so they will not be described in detail.

[0030] Embodiment 4: This embodiment is further optimized on the basis of any one of the above embodiments 1-3, a forming portion is provided at one end of the inclined top 5 close to the forming cavity corresponding to the undercut position of the part, and a forming surface is provided on the side of the first movable part 4 close to the forming cavity, and when the first movable part 4 slides along the first direction close to the forming cavity to the extreme position, the forming portion and the forming surface are smoothly connected to form a cavity corresponding to the contour of the undercut structure of the part.

[0031] The contours of the forming surface and the forming part are randomly set corresponding to the shape surface of the part and the undercut structure of the part. During the demoulding process, the first movable part 4 moves away from the forming cavity, so that the forming surface of the first movable part 4 is separated from the part, and the inclined top part 5 is also driven to separate from the undercut structure of the part, that is, the pre-separation and demoulding of the undercut structure of the part and the surrounding area are realized, and the covering force of the mold on the undercut structure of the part and the surrounding area is reduced, thereby avoiding adhesion, strain and deformation of the undercut structure of the part and the surrounding area during the subsequent ejection and demoulding of the part as a whole.

[0032] The other parts of this embodiment are the same as any one of the above embodiments 1-3, so they are not repeated here.

[0033] Embodiment 5: This embodiment is further optimized based on any one of the above embodiments 1-4. Figure 4 and Figure 5 As shown, the elastic resistance part 3 includes a guide rod 31 and a spring 32. One end of the guide rod 31 is connected to the side of the second movable part 6 away from the forming cavity by a screw, and the other end of the guide rod 31 is in resistance connection with one end of the spring 32. The other end of the spring 32 is provided with a fixing block.

[0034] During the first movement of the first moving part 4 along the first direction, the first moving part 4 will not collide with the second moving part 6. During this process, the second moving part 6 remains stationary under the elastic force of the spring 32 to press the end of the inclined top 5 away from the part. At this time, the movement of the first moving part 4 along the first direction can only drive the side-by-side inclined tops 5 to move closer to or away from each other in the second direction, but cannot drive the inclined tops 5 to move along the first direction, ensuring that the inclined tops 5 can be completely separated from the undercut structure of the part. When the first moving part 4 moves along the first direction for the second stroke, it will collide with the second moving part 6. The second moving part 6 overcomes the elastic force of the spring 32 and moves synchronously with the first moving part 4 along the first direction. At this time, the second moving part 6 drives the inclined tops 5 to move along the first direction along the first direction, and the first moving part 4 cannot continue to squeeze the inclined tops 5 to move closer to or away from each other in the second direction, avoiding collision and interference between the inclined tops 5 and other structures in the process of moving away from the forming cavity.

[0035] The other parts of this embodiment are the same as any one of the above embodiments 1-4, so they are not repeated here.

[0036] Embodiment 6: This embodiment discloses a demolding method driven by a slider sleeve spring, which is realized based on a mold driven by a slider sleeve spring. During the process that the first moving part 4 moves away from the forming cavity in the first direction by a first stroke, the second moving part 6 remains stationary, so that the side-by-side inclined tops 5 are stationary in the first direction and move away from each other in the second direction to disengage from the undercut structure of the part; during the process that the first moving part 4 moves away from the forming cavity in the first direction by a second stroke, the first moving part 4 drives the second moving part 6 to move synchronously in the first direction, so that the side-by-side inclined tops 5 are stationary in the second direction and move away from the forming cavity in the first direction, and the side-by-side inclined tops 5 are moved to the demolding position.

[0037] Specifically, it includes the following steps: Step 1: The first moving part 4 moves close to the forming cavity in the first direction to the limit position, and extrudes the side-by-side inclined tops 5 to move close to each other in the second direction to the forming position. At this time, the forming parts of the inclined tops 5 and the forming surface of the first moving part 4 are smoothly transitionally connected to form a cavity matching the undercut structure of the part, and the mold 7 is closed for injection molding; Step 2: After the part is formed, the first moving part 4 moves away from the forming cavity in the first direction by a first stroke, and the second moving part 6 remains stationary, driving the side-by-side inclined tops 5 to move away from each other in the second direction and remain stationary in the first direction, so that the forming parts of the side-by-side inclined tops 5 are disengaged from the undercut structure of the part; Step 3: The first moving part 4 moves away from the forming cavity in the first direction by a second stroke, driving the second moving part 6 to move synchronously in the first direction, so as to drive the side-by-side inclined tops 5 to move in the first direction and remain stationary in the second direction, so that the side-by-side inclined tops 5 are smoothly moved to the demolding position; Step 4: The mold 7 is opened, and the ejector pin ejects to drive the part to be demolded, and the part is taken out; Step 5: The first moving part 4 moves close to the forming cavity in the first direction to the limit position, driving the side-by-side inclined tops 5 and the second moving part 6 to reset, and the mold 7 is closed for the next injection molding.

[0038] Specifically, the first stroke is 50 - 55 mm, and the second stroke is 35 - 37 mm.

[0039] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A slider sleeve spring-driven mold, comprising a mold (7) with a forming cavity, characterized in that, At the edge of the forming cavity, a slider sleeve spring-driven angled lifter is provided corresponding to the undercut position of the formed part. The slider sleeve spring-driven angled lifter includes a first moving part (4), a second moving part (6), and an angled top part (5) arranged side by side between the first moving part (4) and the second moving part (6). The first moving part (4) and the second moving part (6) can move relative to the forming cavity along a first direction. One end of the angled top part (5) extends through the first moving part (4) to the forming cavity, and the other end of the angled top part (5) is slidably connected to the second moving part (6) along a second direction perpendicular to the first direction. The first moving part (4) includes an extrusion inner cavity. When the first moving part (4) moves a first stroke along the first direction, it drives the extrusion inner cavity to extrude the angled top part (5), so that the side-by-side angled top parts (5) slide along the second direction without moving along the first direction. When the first moving part (4) moves a second stroke along the first direction, it drives the second moving part (6) to move synchronously, so that the second moving part (6) drives the side-by-side angled top parts (5) to move along the first direction, and at the same time the extrusion inner cavity no longer extrudes the angled top part (5) to move along the second direction.

2. The slide block sleeve spring-driven mold according to claim 1, wherein The slider sleeve spring-driven angled lifter further includes a linear driving part (2) and an elastic abutting part (3). The linear driving part (2) is used to drive the first moving part (4) to move along the first direction. The elastic abutting part (3) abuts against one end of the second moving part (6) away from the forming cavity. The elastic abutting part (3) is used to tightly abut the second moving part (6) during the process of the first moving part (4) moving the first stroke, so that the second moving part (6) remains stationary in the first direction during the process of the first moving part (4) moving the first stroke. The elastic abutting part (3) no longer tightly abuts the second moving part (6) during the process of the first moving part (4) moving the second stroke, so that the first moving part (4) drives the second moving part (6) to move synchronously along the first direction during the process of the first moving part (4) moving the second stroke.

3. The slide block sleeve spring-driven mold according to claim 2, wherein The slider sleeve spring-driven angled lifter further includes a moving template (1). The first moving part (4) and the second moving part (6) are slidably arranged along the first direction on the top of the moving template (1). A limiting surface is provided at one end of the moving template (1) close to the forming cavity. The limiting surface is used to limit the extreme position of the first moving part (4) moving towards the forming cavity.

4. A slider sleeve spring-driven mold according to claim 3, characterized in that, An angled groove (100) arranged in a V shape is provided inside the first moving part (4). The angled top part (5) is slidably arranged inside the angled groove (100). The angled groove (100) includes an inner inclined surface (101) and an outer inclined surface (102). An extrusion inner cavity is formed between the inner inclined surface (101) and the outer inclined surface (102). The inner inclined surface (101) extrudes the angled top part (5) when the first moving part (4) moves away from the forming cavity along the first direction by a first stroke, so that the side-by-side angled top parts (5) move away from each other along the second direction. The outer inclined surface (102) extrudes the angled top part (5) when the first moving part (4) moves close to the forming cavity along the first direction by a first stroke, so that the side-by-side angled top parts (5) move closer to each other along the second direction.

5. A slider sleeve spring-driven mold according to claim 4, characterized in that, On one side of the second moving part (6) close to the first moving part (4), a T-shaped sliding groove (201) extending in the second direction is provided, and at one end of the inclined top part (5) far from the forming cavity, a T-shaped block (202) slidably connected with the T-shaped sliding groove (201) is provided.

6. The slide block sleeve spring-driven mold according to claim 5, characterized in that At one end of the inclined top part (5) close to the forming cavity, a forming part is provided corresponding to the undercut position of the part. On one side of the first moving part (4) close to the forming cavity, a forming surface is provided. When the first moving part (4) slides close to the forming cavity along the first direction to the limit position, the forming part and the forming surface are smoothly transitionally connected to form a cavity corresponding to the contour of the undercut structure of the part.

7. The slide block sleeve spring-driven mold according to claim 6, characterized in that, The elastic abutting part (3) includes a guide rod (31) and a spring (32). One end of the guide rod (31) is connected to the side of the second moving part (6) far from the forming cavity by a screw. The other end of the guide rod (31) is in abutting connection with one end of the spring (32), and a fixing block is provided at the other end of the spring (32).

8. A slider sleeve spring-driven demolding method, implemented based on the slider sleeve spring-driven mold according to any one of claims 1-7, characterized in that, During the process that the first moving part (4) moves away from the forming cavity along the first direction for the first stroke, the second moving part (6) remains stationary, so that the side-by-side inclined top parts (5) are stationary in the first direction and move away from each other in the second direction to disengage from the undercut structure of the part. During the process that the first moving part (4) moves away from the forming cavity along the first direction for the second stroke, it drives the second moving part (6) to move synchronously along the first direction, so that the side-by-side inclined top parts (5) are stationary in the second direction and move away from the forming cavity along the first direction, and the side-by-side inclined top parts (5) are moved to the demolding position.

9. A slider sleeve spring-driven demolding method according to claim 8, characterized in that, Specifically, it includes the following steps: Step 1: The first moving part (4) moves close to the forming cavity along the first direction to the limit position, squeezing the side-by-side inclined top parts (5) to move close to each other in the second direction to the forming position. At this time, the forming part of the inclined top part (5) and the forming surface of the first moving part (4) are smoothly transitionally connected to form a cavity matching the undercut structure of the part, and the mold (7) is closed for injection molding. Step 2: After the part is formed, the first moving part (4) moves away from the forming cavity along the first direction for the first stroke, and the second moving part (6) remains stationary, driving the side-by-side inclined top parts (5) to move away from each other in the second direction and remain stationary in the first direction, so that the forming parts of the side-by-side inclined top parts (5) are disengaged from the undercut structure of the part. Step 3: The first moving part (4) moves away from the forming cavity along the first direction for the second stroke, driving the second moving part (6) to move synchronously along the first direction, so as to drive the side-by-side inclined top parts (5) to move in the first direction and remain stationary in the second direction, so that the side-by-side inclined top parts (5) are smoothly moved to the demolding position. Step 4: The mold (7) is opened, and the ejector pin ejects to drive the part to demold, and the part is taken out. Step 5: The first moving part (4) moves close to the forming cavity along the first direction to the limit position, driving the side-by-side inclined top parts (5) and the second moving part (6) to reset, and the mold (7) is closed for the next injection molding.

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