Adjustable draft angle plastic mold

CN224714307UActive Publication Date: 2026-09-04SUZHOU OUCHIM PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202521715510.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-13
Publication Date
2026-09-04
Estimated Expiration
2035-08-13

AI Technical Summary

Technical Problem

[0003]然而,现有的塑胶模具在脱模时,难以对脱模角度进行灵活调节,这就导致在面对不同形状、尺寸及材料特性的塑料产品时,无法提供适配的脱模角度,进而致使产品脱模过程中出现顶杆弯曲、产品表面拉白刮痕、良品率降低等不良后果,严重影响了产品质量与生产效率

Benefits of technology

1、本实用新型通过设置调节机构,具体是当需要调整模具脱模角度时,电动推杆启动伸缩,经连接板带动调节板移动,调节板上弧形滑槽与支撑板上支撑杆滑动配合,使调节板沿弧形路径运动,带动安装座及模具整体倾斜,通过控制电动推杆行程,可在一定范围任意调节角度,适配不同产品脱模需求,提升模具对多样化生产的适应性,保障产品顺利脱模,减少脱模不良问题。

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Abstract

The utility model discloses adjustable demoulding angle's plastic mould relates to injection mould technical field. The utility model discloses a bottom plate and mounting seat, the top of mounting seat is provided with mould, still includes: adjusting mechanism, adjusting mechanism sets up at the top of bottom plate, adjusting mechanism is used for adjusting the demoulding angle of mould, adjusting mechanism includes two support plates fixedly connected at the top of bottom plate. The utility model discloses adjusting mechanism, specifically is when needing to adjust mould demoulding angle, electric push rod starts telescoping, and the adjusting plate is removed through the connecting plate, and the arc -shaped slide groove on the adjusting plate and the support rod on the support plate slide fit, make the adjusting plate along the arc -shaped path movement, drive mounting seat and mould whole body inclination, through the control electric push rod stroke, can in certain range arbitrary angle adjustment, adapts to different product demoulding demand, promotes the adaptability of mould to diversification production, guarantees the smooth demoulding of product, reduces the demoulding bad problem.
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Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, and in particular relates to plastic molds with adjustable demolding angles. Background Technology

[0002] In the production of plastic products, injection molding is widely used. Molten raw materials are injected under pressure and cooled and solidified into a specific shape in an injection mold. As a key tool, the injection mold plays a decisive role in the quality of product molding. During the mold demolding process, the plastic shrinks and hugs the core when it cools. In order to counteract this "clamping force" and avoid problems such as deformation and scratches caused by difficulty in demolding, it is often necessary to set a demolding angle.

[0003] However, existing plastic molds are difficult to adjust the demolding angle flexibly during demolding. This makes it impossible to provide a suitable demolding angle when dealing with plastic products of different shapes, sizes and material properties. As a result, adverse consequences such as ejector pin bending, whitening and scratches on the product surface and reduced yield occur during the demolding process, which seriously affect product quality and production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a plastic mold with an adjustable demolding angle. Specifically, when the demolding angle needs adjustment, an electric push rod extends and retracts, driving an adjusting plate to move via a connecting plate. The arc-shaped groove on the adjusting plate slides in conjunction with a support rod on the support plate, causing the adjusting plate to move along an arc path. This tilts the mounting base and the mold as a whole. By controlling the stroke of the electric push rod, the angle can be adjusted arbitrarily within a certain range to adapt to the demolding requirements of different products, improving the mold's adaptability to diversified production, ensuring smooth product demolding, reducing demolding defects, and solving the problem of difficulty in flexibly adjusting the demolding angle in existing plastic molds during demolding.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to an adjustable demolding angle plastic mold, comprising a base plate and a mounting base, wherein the top of the mounting base is provided with the mold, and further comprising: An adjustment mechanism, disposed on the top of the base plate, is used to adjust the demolding angle of the mold. The adjustment mechanism includes two support plates fixedly connected to the top of the base plate, with adjustment plates slidably connected to the sides of the two support plates that are close to each other. The tops of the two adjustment plates are fixedly connected to a mounting base. The mounting mechanism is located on the top of the mounting base and is used for installing and disassembling the mold. The mounting mechanism includes a mounting groove that is slidably connected to the mold. The mold is placed in the mounting slot on top of the mounting base, and then the mold is installed by the mounting mechanism.

[0006] Furthermore, the adjustment mechanism also includes a connecting component one, which is disposed on the top of the base plate and is used to connect the two support plates and the two adjustment plates; and A drive assembly, which is disposed on the top of the base plate, is used to provide power for adjusting the demolding angle of the mold; The drive assembly provides power to the two adjusting plates, causing them to move under the action of the drive assembly.

[0007] Furthermore, the mounting mechanism also includes a limiting mechanism disposed at the top of the mounting base, the limiting mechanism being used to limit the mold; and A locking component is disposed on the top of the mounting base, and the locking component is used to enhance the limiting effect of the limiting mechanism; A second connecting component is disposed inside the locking component and is used to connect the limiting mechanism and the locking component. Among them, the connecting component two enables the limiting mechanism and the locking component to be interconnected yet independent of each other.

[0008] Furthermore, the connecting component includes two support rods that pass through the two support plates respectively, four support rods that are fixedly connected to the two support plates respectively, two sliding grooves that are opened on the two adjustment plates respectively, and four support rods that pass through the two adjustment plates and are slidably connected to the corresponding sliding grooves; All four support rods are fixedly connected to their corresponding support plates by welding.

[0009] Furthermore, the drive assembly includes a connecting plate fixedly connected between the two adjusting plates, and an electric push rod is hinged between the base plate and the connecting plate; The top of the base plate is bolted to a hinge seat, and the electric push rod is hinged to the base plate through the hinge seat.

[0010] Furthermore, the limiting mechanism includes fixed plates that are fixedly connected to the front and rear sides of the mold respectively, and two through slots are opened on the two fixed plates respectively. Two locking plates are slidably connected to the top of the two fixed plates respectively. The dimensions of the four plates are all smaller than the corresponding through slots, but the longitudinal dimensions of the four plates are larger than the transverse dimensions of the corresponding through slots.

[0011] Furthermore, the locking assembly includes four internal threaded seats fixedly connected to the top of the mounting base, each of the four locking plates having a threaded rod extending through it, each of the four threaded rods being rotatably connected to a corresponding internal threaded seat, the bottom ends of the four threaded rods extending into the interior of the corresponding internal threaded seat and being threadedly connected to the corresponding internal threaded seat, and each of the top ends of the four threaded rods having a knob fixedly connected to it. All four knobs are fixedly connected to their corresponding threaded rods by welding.

[0012] Furthermore, the inner walls of the four card plates are provided with limit grooves, the outer walls of the four threaded rods are fixedly connected with limit rings, and the outer walls of the four limit rings extend into the interior of the corresponding limit grooves and slide to connect with the corresponding limit grooves. The limiting groove and the limiting ring enable a rotatable connection between the through groove and the card plate, and the two do not interfere with each other during rotation.

[0013] This utility model has the following beneficial effects: 1. This utility model features an adjustment mechanism. Specifically, when the mold demolding angle needs to be adjusted, the electric push rod extends and retracts, driving the adjustment plate to move via the connecting plate. The arc-shaped groove on the adjustment plate slides in conjunction with the support rod on the support plate, causing the adjustment plate to move along an arc path. This tilts the mounting base and the mold as a whole. By controlling the stroke of the electric push rod, the angle can be adjusted arbitrarily within a certain range to adapt to the demolding requirements of different products, improve the mold's adaptability to diversified production, ensure smooth product demolding, and reduce demolding defects.

[0014] 2. This utility model, through the setting of an installation mechanism, specifically, when installing the mold, the mold fixing plate is aligned with the installation groove and slid in. The clamping plate passes through the through groove to the top of the fixing plate. The clamping plate is rotated 90 degrees to offset and clamp the fixing plate for initial fixation. Then, the knob is rotated, and the threaded rod rotates in the internal thread seat. With the cooperation of the limiting ring and the limiting groove, the clamping plate is driven to move down and press the fixing plate to achieve a firm installation. When disassembling, the mold can be disassembled by reversing the operation. This enables quick disassembly and assembly of the mold, shortens the mold replacement time, reduces equipment downtime during mold replacement, and thus improves equipment production efficiency.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rear view structure of this utility model; Figure 3 This is a schematic diagram of the exploded structure of this utility model; Figure 4 This is a schematic diagram of the structure of the electric push rod of this utility model; Figure 5 This is a schematic diagram of the threaded rod of this utility model; Figure 6 This utility model Figure 2 A magnified structural diagram of A in the diagram.

[0018] The attached diagram lists the components represented by each number as follows: 1. Base plate; 11. Mounting seat; 111. Mold; 2. Adjustment mechanism; 21. Support plate; 211. Adjustment plate; 22. Connecting component one; 221. Support rod; 222. Slide groove; 23. Drive component; 231. Connecting plate; 232. Electric push rod; 3. Mounting mechanism; 31. Mounting groove; 32. Limiting mechanism; 321. Fixing plate; 322. Through groove; 323. Clamping plate; 33. Locking component; 331. Internal thread seat; 332. Threaded rod; 333. Knob; 34. Connecting component two; 341. Limiting groove; 342. Limiting ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-6 As shown, this utility model is a plastic mold with an adjustable demolding angle, including a base plate 1 and a mounting base 11. The top of the mounting base 11 is provided with a mold 111, and it also includes: Adjustment mechanism 2, located on the top of base plate 1, is used to adjust the demolding angle of mold 111. Adjustment mechanism 2 includes two support plates 21 fixedly connected to the top of base plate 1. Adjustment plates 211 are slidably connected to the sides of the two support plates 21 that are close to each other. The tops of the two adjustment plates 211 are fixedly connected to mounting base 11. The mounting mechanism 3 is located on the top of the mounting base 11. The mounting mechanism 3 is used to install and disassemble the mold 111. The mounting mechanism 3 includes a mounting groove 31, which is slidably connected to the mold 111. The mold 111 is placed in the mounting groove 31 on the top of the mounting base 11, and then the mold 111 is installed by the mounting mechanism 3.

[0021] The adjustment mechanism 2 also includes a connecting component 22, which is disposed on the top of the base plate 1 and is used to connect the two support plates 21 and the two adjusting plates 211; and The drive assembly 23 is located on the top of the base plate 1. The drive assembly 23 is used to provide power for adjusting the demolding angle of the mold 111. The power provided by the drive assembly 23 acts on the two adjusting plates 211, causing the two adjusting plates 211 to move under the action of the drive assembly 23.

[0022] The mounting mechanism 3 also includes a limiting mechanism 32, which is disposed on the top of the mounting base 11 and is used to limit the mold 111; and Locking component 33 is disposed on the top of mounting base 11. Locking component 33 is used to enhance the limiting effect of limiting mechanism 32. The second connecting component 34 is located inside the locking component 33. The second connecting component 34 is used to connect the limiting mechanism 32 and the locking component 33. The second connecting component 34 enables the limiting mechanism 32 and the locking component 33 to be interconnected but not interfere with each other.

[0023] The connecting component 22 includes two support rods 221 that pass through the two support plates 21 respectively. The four support rods 221 are fixedly connected to the two support plates 21 respectively. Two sliding grooves 222 are opened on the two adjusting plates 211 respectively. The four support rods 221 pass through the two adjusting plates 211 and are slidably connected to the corresponding sliding grooves 222. The end of each of the four support rods 221 near the sliding groove 222 is designed with a limit ring to limit its movement.

[0024] The drive assembly 23 includes a connecting plate 231 fixedly connected between two adjusting plates 211. An electric push rod 232 is hinged between the base plate 1 and the connecting plate 231. When the electric push rod 232 is activated, it drives the two adjusting plates 211 to move through the connecting plate 231. When the adjusting plates 211 move, the moving path of the two adjusting plates 211 is guided by the cooperation of the support rod 221 and the slide 222, thereby adjusting the demolding angle of the mold 111.

[0025] The limiting mechanism 32 includes fixed plates 321 that are fixedly connected to the front and rear sides of the mold 111 respectively. Two through slots 322 are opened on the two fixed plates 321 respectively. Two locking plates 323 are slidably connected to the top of the two fixed plates 321 respectively. The four locking plates 323 and the four through slots 322 are rectangular.

[0026] The locking assembly 33 includes four internal threaded seats 331 fixedly connected to the top of the mounting base 11. Each of the four locking plates 323 has a threaded rod 332 passing through it. The four threaded rods 332 are rotatably connected to the corresponding internal threaded seats 331. The bottom ends of the four threaded rods 332 extend into the interior of the corresponding internal threaded seats 331 and are threadedly connected to the corresponding internal threaded seats 331. The top ends of the four threaded rods 332 are fixedly connected to knobs 333. The four locking plates 323 move to the top of the corresponding fixed plate 321 through the corresponding through slots 322. Then, the four locking plates 323 are rotated 90 degrees to lock the four locking plates 323 onto the top of the corresponding support plate 21. Then, the corresponding threaded rods 332 are rotated by the four knobs 333 to move the corresponding locking plates 323 downward.

[0027] The inner walls of the four clamping plates 323 are provided with limiting grooves 341, and the outer walls of the four threaded rods 332 are fixedly connected with limiting rings 342. The outer walls of the four limiting rings 342 extend into the interior of the corresponding limiting grooves 341 and slide in connection with the corresponding limiting grooves 341. The four limiting rings 342 are fixedly connected to the corresponding threaded rods 332 by welding.

[0028] A specific application of this embodiment is as follows: When using this device, when it is necessary to adjust the demolding angle of the mold 111, the electric push rod 232 is activated and extends and retracts, driving the two adjusting plates 211 fixed thereto to move through the connecting plate 231. Since the arc-shaped groove 222 on the adjusting plate 211 slides in cooperation with the support rod 221 on the support plate 21, the adjusting plate 211 will move along the arc-shaped path during the movement, thereby causing the top mounting seat 11 and the mold 111 to tilt as a whole, realizing the adjustment of the demolding angle. When the electric push rod 232 extends, the adjusting plate 211 slides upward along the support rod 221, and the front end of the mold 111 is raised to form an inclination angle; when the electric push rod 232 retracts, the adjusting plate 211 slides down, and the mold 111 returns to horizontal or forms a reverse tilt. By controlling the stroke of the electric push rod 232, the mold 111 can be adjusted at any angle within a certain range to adapt to the demolding requirements of different products.

[0029] When installing mold 111, align the fixing plate 321 at the bottom of mold 111 with the mounting groove 31 on the mounting base 11 and slide it in. At this time, the clamping plate 323 extends to the top of the fixing plate 321 through the through groove 322. Then, rotate the clamping plate 323 ninety degrees to make it misalign with the through groove 322 and clamp the fixing plate 321, thus initially fixing mold 111. Subsequently, rotate the knob 333 to drive the threaded rod 332 to rotate in the internal thread seat 331. Due to the cooperation between the limiting ring 342 and the limiting groove 341, the threaded rod 332 will drive the clamping plate 323 to move downward when rotating, further pressing the fixing plate 321, thus achieving a firm installation of mold 111. When disassembling mold 111, rotate the knob 333 in the opposite direction to move the clamping plate 323 upward, and rotate the clamping plate 323 ninety degrees again to align it with the through groove 322, so that mold 111 can be slid out of the mounting base 11, thereby realizing the quick disassembly and installation of mold 111.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A plastic mold with an adjustable demolding angle, comprising a base plate (1) and a mounting base (11), wherein the top of the mounting base (11) is provided with a mold (111), characterized in that, Also includes: An adjustment mechanism (2) is provided on the top of the base plate (1). The adjustment mechanism (2) is used to adjust the demolding angle of the mold (111). The adjustment mechanism (2) includes two support plates (21) fixedly connected to the top of the base plate (1). An adjustment plate (211) is slidably connected to one side of each support plate (21) that is close to the other. The tops of the two adjustment plates (211) are fixedly connected to the mounting base (11). The mounting mechanism (3) is located on the top of the mounting base (11). The mounting mechanism (3) is used to install and disassemble the mold (111). The mounting mechanism (3) includes a mounting groove (31) which is slidably connected to the mold (111). The mold (111) is placed in the mounting slot (31) on the top of the mounting base (11), and then the mold (111) is installed by the mounting mechanism (3).

2. The plastic mold with adjustable demolding angle according to claim 1, characterized in that, The adjustment mechanism (2) further includes a connecting component (22), which is disposed on the top of the base plate (1) and is used to connect the two support plates (21) and the two adjustment plates (211). as well as A drive assembly (23) is disposed on the top of the base plate (1) and is used to provide power for adjusting the demolding angle of the mold (111); The power provided by the drive assembly (23) acts on the two adjustment plates (211), causing the two adjustment plates (211) to move under the action of the drive assembly (23).

3. The plastic mold with adjustable demolding angle according to claim 2, characterized in that, The mounting mechanism (3) further includes a limiting mechanism (32), which is disposed on the top of the mounting base (11) and is used to limit the mold (111); and Locking component (33) is disposed on the top of mounting base (11) and is used to enhance the limiting effect of limiting mechanism (32); Connection component two (34) is disposed inside the locking component (33) and is used to connect the limiting mechanism (32) and the locking component (33). Among them, the limiting mechanism (32) and the locking component (33) are interconnected but do not affect each other through the connecting component two (34).

4. The plastic mold with adjustable demolding angle according to claim 2, characterized in that, The first connecting component (22) includes two support rods (221) that pass through the two support plates (21) respectively. The four support rods (221) are fixedly connected to the two support plates (21) respectively. The two adjusting plates (211) are respectively provided with two sliding grooves (222). The four support rods (221) pass through the two adjusting plates (211) respectively and are slidably connected to the corresponding sliding grooves (222). Among them, the four slides (222) are all designed to be arc-shaped, and the four support rods (221) are respectively adapted to the corresponding slides (222).

5. The plastic mold with an adjustable demolding angle according to claim 2, characterized in that, The drive assembly (23) includes a connecting plate (231) fixedly connected between two adjusting plates (211), and an electric push rod (232) is hinged between the base plate (1) and the connecting plate (231). The connecting plate (231) is fixedly connected to the two adjusting plates (211) by welding.

6. The plastic mold with adjustable demolding angle according to claim 3, characterized in that, The limiting mechanism (32) includes a fixing plate (321) fixedly connected to the front and rear sides of the mold (111) respectively. Two through slots (322) are opened on the two fixing plates (321) respectively, and two clamping plates (323) are slidably connected to the top of the two fixing plates (321). Both fixing plates (321) are fixedly connected to the corresponding molds (111) by welding.

7. The plastic mold with an adjustable demolding angle according to claim 6, characterized in that, The locking assembly (33) includes four internal threaded seats (331) fixedly connected to the top of the mounting base (11). Each of the four clamping plates (323) has a threaded rod (332) passing through it. Each of the four threaded rods (332) is rotatably connected to the corresponding internal threaded seat (331). The bottom ends of the four threaded rods (332) extend into the interior of the corresponding internal threaded seat (331) and are threadedly connected to the corresponding internal threaded seat (331). Each of the top ends of the four threaded rods (332) is fixedly connected to a knob (333). Among them, the four internal thread seats (331) are fixedly connected to the mounting seat (11) by welding.

8. The plastic mold with adjustable demolding angle according to claim 7, characterized in that, The inner walls of the four card plates (323) are provided with limiting grooves (341), and the outer walls of the four threaded rods (332) are fixedly connected with limiting rings (342). The outer walls of the four limiting rings (342) extend into the interior of the corresponding limiting grooves (341) and slide to connect with the corresponding limiting grooves (341).