Shock absorber base forming die
By using a tilted sliding connection for the first core and a retractable second core design, combined with a traction structure, the problems of complex demolding and damage in existing molds are solved, achieving damage-free demolding and a simplified demolding process.
Patent Information
- Application Number
- CN202422915379.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-11-28
AI Technical Summary
The existing shock absorber base molding mold has a large adhesion force between the positioning groove and the second cavity and the core during demolding, which makes the demolding process complicated and easy to damage the sides of the positioning groove. In addition, the demolding process of multiple second cavities is cumbersome.
The design employs a first core with an inclined sliding connection and a retractable second core, combined with a traction structure, to change the demolding direction and reduce adhesion force, thus achieving damage-free demolding.
It simplifies the demolding process, reduces product damage, and improves demolding efficiency.
Smart Images
Figure CN223820994U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of molds, in particular to a shock absorber base forming mold. BACKGROUND
[0002] As shown in the prior art, it is a schematic diagram of a shock absorber base structure; mainly including a first cavity 40 located in the middle part of the product, a positioning groove 41 located at the bottom of the product 4 and a plurality of second cavities 42 arranged annularly around the axis of the product 4. Figures 1 to 3 Among them, the existing demolding mechanism belongs to vertical demolding when demolding the positioning groove 41, and the injection molded product will shrink when demolding, resulting in increased adhesion between the two sides of the positioning groove 41 and the core; but because the thickness of the two sides of the positioning groove 41 is relatively thin, it may cause the existing demolding mechanism to cause the two sides of the positioning groove 41 to be pulled when demolding the positioning groove 41.
[0003] At the same time, the length of the plurality of second cavities 42 arranged annularly around the axis of the product 4 is relatively long, and the contact area with the core is relatively large. Because of the large number and large contact area with the core, if the vertical demolding method in the prior art is used, the adhesion will be very large, and the demolding process of the product 4 will be more troublesome.
[0004] Therefore, it is necessary to reform the existing shock absorber base forming mold.
[0005] CONTENT OF THE UTILITY MODEL
[0006] The purpose of the present application is to provide a shock absorber base forming mold which can solve at least one defect in the background art.
[0007] In order to achieve the above at least one purpose, the technical scheme adopted by the present application is: a shock absorber base forming mold, comprising a movable mold, a fixed mold and a demolding mechanism installed at the lower part of the fixed mold; the fixed mold is provided with a first core and a second core; the product to be demolded is provided with a positioning groove and a second cavity; the first core and the second core are respectively used for forming the positioning groove and the second cavity; the first core is slidably connected to the demolding mechanism at one end away from the cavity; when demolding the product to be demolded, the demolding mechanism is adapted to drive the first core to move in the demolding direction while moving in the direction perpendicular to the demolding direction, so that the first core and the product are separated; the second core is adapted to shrink relatively during the demolding process of the product, so that the two sides of the second core move away from the product in the direction perpendicular to the demolding direction.
[0008] Preferably, the first core is obliquely slidably mounted on the fixed mold; the first core comprises a forming end for forming the positioning groove and a sliding end slidably connected with the demolding mechanism along a direction perpendicular to the demolding direction.
[0009] Preferably, the second core comprises a fixed core and a sliding core; the fixed core and the sliding core are adapted to be connected through a traction structure; when the product is demolded, the fixed core is adapted to remain stationary, and the sliding core is adapted to move along the demolding direction through the adhesion force between the product and the sliding core, so that the sliding core is displaced towards the fixed core through the traction structure.
[0010] Preferably, the connecting surfaces of the fixed core and the sliding core are respectively a first connecting surface and a second connecting surface; the first connecting surface and the second connecting surface are mutually adhering inclined surfaces; the traction structure is arranged between the first connecting surface and the second connecting surface.
[0011] Preferably, the traction structure comprises a traction block arranged on the first connecting surface and a traction groove arranged on the second connecting surface; when the product is demolded, the sliding core is adapted to move vertically upward through the adhesion force between the product and the sliding core, and at the same time, the sliding core is adapted to slide along the traction block through the traction groove, so that the sliding core is displaced towards the fixed core.
[0012] Preferably, the traction structure comprises a traction groove arranged on the first connecting surface and a traction block arranged on the second connecting surface; when the product is demolded, the sliding core is adapted to move vertically upward through the adhesion force between the product and the sliding core, and at the same time, the sliding core is adapted to slide along the traction block through the traction groove, so that the sliding core is displaced towards the fixed core.
[0013] Preferably, the sliding core has a pair of symmetrically arranged sliding cores along the fixed core; the pair of sliding cores are connected with the fixed core and cooperated through the traction structure.
[0014] Preferably, the demolding mechanism further comprises a plurality of ejector pins and a push plate; the ejector pins are mounted on the upper part of the push plate; the first core is slidably mounted on the upper part of the push plate through the sliding end perpendicular to the demolding direction.
[0015] Compared with the prior art, the application has the following beneficial effects:
[0016] Compared with the existing shock absorber base forming product, the application changes the separation mode of the first core and the second core from the product, so that the adhesion force between the product and the first core and the second core is reduced, and the demolding process of the product is more simple, and the product is more simple and easy to be demolded without damage. Attached Figure Description
[0017] Figure 1 This is a top view of the product structure in this utility model.
[0018] Figure 2 This is a structural diagram of the product in this utility model viewed from below.
[0019] Figure 3 This is a schematic diagram of the positioning groove of the product in this utility model.
[0020] Figure 4 This is a schematic diagram of the overall structure of this utility model.
[0021] Figure 5 This is a schematic diagram of the demolding mechanism in this utility model.
[0022] Figure 6 This is a schematic diagram of the structure of the first core in this utility model.
[0023] Figure 7 This is a frontal view of the first core in this utility model, installed at an angle.
[0024] Figure 8 This is a frontal view diagram of the first core during demolding in this utility model.
[0025] Figure 9 This is a schematic diagram of the structure when the first core and the positioning groove are attached in this utility model.
[0026] Figure 10 This is a schematic diagram of the structure of the second core in this utility model.
[0027] Figure 11 This utility model Figure 10 A magnified view of a portion of point A in the middle.
[0028] Figure 12 This is a rear view of the second core in this utility model.
[0029] Figure 13 This is a diagram showing the state of the second core during demolding in this utility model.
[0030] Figure 14 This is a schematic diagram of the installation of the second core in this utility model.
[0031] In the figure: moving mold 1, fixed mold 2, second core 20, fixed core 200, sliding core 201, traction structure 202, traction block 2020, traction groove 2021, first core 21, forming end 210, sliding end 211, demolding mechanism 3, push plate 30, ejector pin 31, product 4, first cavity 40, positioning groove 41, second cavity 42. DETAILED DESCRIPTION
[0032] Hereinafter, the present application will be further described with reference to the specific embodiments, it should be noted that the embodiments described below or the technical features between the embodiments can be combined with each other to form new embodiments without conflict.
[0033] In the description of the present application, it should be noted that for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The orientation and position relationship shown in the drawings is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.
[0034] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence.
[0035] The terms "include" and "have" and any variations thereof in the specification and claims of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or apparatus including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or apparatuses.
[0036] One of the preferred embodiments of the present application is shown as Figures 1 to 14 A shock absorber base forming die includes a moving die 1, a fixed die 2, and a demolding mechanism 3 installed at the lower part of the fixed die 2. The fixed die 2 is provided with a first core 21 and a second core 20. The product 4 to be demolded is provided with a positioning groove 41 and a second cavity 42. The first core 21 and the second core 20 are respectively used to form the positioning groove 41 and the second cavity 42. The first core 21 is slidably connected to the demolding mechanism 3 at the end away from the cavity. When demolding the product 4 to be demolded, the demolding mechanism 3 can drive the first core 21 to move in the demolding direction while moving in the direction perpendicular to the demolding direction, so that the first core 21 and the product 4 are separated. The second core 20 can be relatively contracted during the demolding of the product 4, so that the two sides of the second core 20 move away from the product 4 in the direction perpendicular to the demolding direction.
[0037] It should be understood that, as Figures 1 to 3As shown, this is a schematic diagram of an existing shock absorber base structure; it mainly includes a first cavity 40 located in the middle of the product 4, a positioning groove 41 located at the bottom of the product 4, and multiple second cavities 42 arranged in a ring around the axis of the product 4.
[0038] The existing demolding mechanism demolds the positioning groove 41 in a vertical direction. When the injection molded product is demolded, it will shrink due to cooling, which will increase the adhesion between the sides of the positioning groove 41 and the core. However, since the thickness of the sides of the positioning groove 41 is relatively thin, the existing demolding mechanism may cause the sides of the positioning groove 41 to be damaged when demolding.
[0039] Meanwhile, the multiple second cavities 42 arranged in a ring around the axis of product 4 are relatively long and have a large contact area with the core. Because of their large number and large contact area with the core, if the existing vertical demolding method is used, the adhesion force will be very large, which will make the demolding process of product 4 more troublesome.
[0040] Therefore, in this embodiment, by changing the way the first core 21 and the second core 20 separate from the product 4, the adhesion between the product 4 and the first core 21 and the second core 20 is reduced. As is well known, the reduced adhesion between the product 4 and the two cores makes the demolding process of the product 4 simpler and makes the product 4 easier to demold without damage.
[0041] In this embodiment, as Figures 1 to 3 As shown, product 4 is provided with positioning grooves 41, and there are multiple positioning grooves 41. As can be seen from the figure, the two sides of the positioning groove 41 are relatively thin. During the demolding process, the injection molded product will be cooled. Following the principle of thermal expansion and contraction, the injection molded product will shrink during the demolding process, which will increase the adhesion between the two sides of the positioning groove 41 and the core.
[0042] It is understandable that, as can be seen from the above, the existing demolding mechanism demolds the positioning groove 41 in the vertical direction. Due to its strong adhesive force, demolding in the vertical direction may cause the weak sides of the positioning groove 41 to be damaged.
[0043] It should be noted that its existing demolding mechanism demolds the entire product 4 vertically, which can easily damage the sides of its positioning groove 41; however, if Figure 3 As shown, the length of the thin walls on both sides of the positioning groove 41 in the width direction is much greater than its length in the height direction. Therefore, the bending section modulus of the thin walls on both sides of the positioning groove 41 in the width direction is relatively high, so it is not easy to deform during demolding.
[0044] Therefore, in this embodiment, if the demolding mechanism can demold the product 4 in the vertical direction and demold the positioning groove 41 in the horizontal direction at the same time, the positioning groove 41 can be demolded without damage over a long length.
[0045] Therefore, in this embodiment, as Figures 4 to 9 As shown, the fixed mold 2 includes a first core 21; the first core 21 includes a forming end 210, which is used to form the positioning groove 41. The first core 21 needs to demold the positioning groove 31 in the horizontal direction, so the first core 21 also includes a sliding end 211, which is slidably connected to the demolding mechanism 3.
[0046] Specifically, the demolding mechanism 3 includes multiple ejector pins 31 and a push plate 30. The ejector pins 31 are mounted on the upper part of the push plate 30, and their first cores 21 are slidably connected to the upper part of the push plate 30 through the sliding end 211. When the product 4 is demolded, the moving mold 1 can disengage from the fixed mold 2 by moving vertically upward, so that the first cavity 40 contained in the product 4 can be demolded; its push plate 30 can carry the ejector pins 31 and the first cores 21 to move vertically upward under the drive of an external drive source, while the forming end 210 and the sliding end 211 generate a vertically upward and vertically downward relative force, thereby causing the first cores 21 to move horizontally on the push plate 30 in the inclined direction through its sliding end 211 to demold the positioning groove 41.
[0047] It is understandable that, as can be seen from the above, the first core 21 will move vertically upward under the drive of the external drive source along with the push plate 30; because its molding end 210 and the positioning groove 41 are in a close fit, the molding end 210 and the sliding end 211 of the first core 21 are respectively subjected to the vertical upward force of the push plate 30 and the vertical downward force generated when it abuts against the positioning groove 41, causing the first core 21 to move horizontally on the push plate 30 along the inclined direction through its sliding end 211, and then demold without damage from the positioning groove 41.
[0048] It should be understood that, in this embodiment, the external drive source can be set as an oil generator. Specific settings can be selected by those skilled in the art as needed.
[0049] In this embodiment, as Figures 1 to 3As shown, product 4 also includes multiple second cavities 42 arranged in a ring around the axis of product 4. As can be seen from the above, the length of each second cavity 42 is relatively long, resulting in a large contact area with the core. Simultaneously, the large number of second cavities 42 leads to very strong adhesion between them and the core. If the existing vertical demolding method is still used, the demolding process for these multiple second cavities 42 would be extremely cumbersome, adding a burden to the overall demolding process of product 4.
[0050] Understandably, reducing the adhesion between the second cavity 42 and the core would make the demolding process of the second cavity 42 much easier.
[0051] Therefore, in this embodiment, as Figure 10 As shown, a second core 20 is also provided in the fixed mold 2; the second core 20 can shrink relative to the product 4 during the demolding process, so that the two sides of the second core 20 move away from the product 4 in a direction perpendicular to the demolding.
[0052] It is understandable that, in order to achieve the above functions, such as Figures 10 to 12 As shown, in this embodiment, the second core 20 is configured as a fixed core 200 and a sliding core 201; the fixed core 200 and the sliding core 201 can be connected by a traction structure 202. When the product 4 is demolded, the fixed core 200 and the fixed mold 2 are fixedly connected to remain stationary, and the sliding core 201 can move vertically upward with the product 4 as the product 4 rises due to the adhesion between them. At the same time, the sliding core 201 can be displaced towards the fixed core 200 by the traction structure 202.
[0053] It should be understood that, in this embodiment, as Figure 12 As shown, the connecting surfaces of the fixed core 200 and the sliding core 201 are the first connecting surface and the second connecting surface, respectively; the first connecting surface and the second connecting surface are inclined surfaces that fit together. At the same time, the inclination directions of the first inclined surface and the second inclined surface are close to the fixed core 200, so that the sliding core 201 can be displaced towards the fixed core 200 through the aforementioned traction structure 202.
[0054] It is understood that in this embodiment, the first connecting surface is disposed on the fixed core 200, and the second connecting surface is disposed on the sliding core 201.
[0055] Therefore, in this embodiment, in order to achieve the above-mentioned functions, the traction structure 202 includes a traction groove 2021 and a traction block 2020; the fixed core 200 and the sliding core 201 can be traction-coordinated through the traction groove 2021 and the traction block 2020. There are various ways to set the specific structure of the traction groove 2021 and the traction block 2020, including but not limited to the two described below.
[0056] Method 1: The traction block 2020 is set on the fixed core 200, and the traction groove 2021 is set on the sliding core 201. When the product 4 is demolded, the sliding core 201 can move vertically upward by the adhesion between it and the product 4. At the same time, the sliding core 201 can slide along the traction block 2020 through the traction groove 2021, thereby causing the sliding core 201 to move towards the fixed core 200.
[0057] Method 2: For example Figure 10 and Figure 11 As shown, the traction block 2020 is disposed on the sliding core 201, and the traction groove 2021 is disposed on the fixed core 200. When the product 4 is demolded, the sliding core 201 can move vertically upward by the adhesion between it and the product 4. At the same time, the sliding core 201 can slide along the traction groove 2021 by the traction block 2020, thereby causing the sliding core 201 to move towards the fixed core 200.
[0058] It should be understood that both of the above-mentioned configuration methods can meet the requirements of this application, and those skilled in the art can choose according to actual needs; in this embodiment, the second method is preferred.
[0059] It is understandable that the aforementioned traction structure 202 and sliding core 201 are a pair, respectively located on both sides of the fixed core 200; this makes the demolding process of the second cavity 42 easier.
[0060] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.
Claims
1. A shock absorber base forming mold, characterized in that, include: The system comprises a moving mold, a fixed mold, and a demolding mechanism installed at the lower part of the fixed mold; a first core and a second core are provided inside the fixed mold; a positioning groove and a second cavity are provided on the product to be demolded; the first core and the second core are respectively used to form the positioning groove and the second cavity; the first core is slidably connected to the demolding mechanism at the end away from the cavity; when demolding the product to be demolded, the demolding mechanism is adapted to drive the first core to move in the demolding direction and at the same time in the direction perpendicular to the demolding direction, so that the first core and the product are separated; the second core is adapted to shrink relatively during the demolding process with the product, so that the two sides of the second core move away from the product in the direction perpendicular to the demolding direction.
2. The shock absorber base forming mold as described in claim 1, characterized in that: The first core is slidably mounted on the fixed mold at an inclination; the first core includes a forming end for forming the positioning groove and a sliding end that is slidably connected to the demolding mechanism along a direction perpendicular to the demolding direction.
3. The shock absorber base forming mold as described in claim 1, characterized in that: The second core includes a fixed core and a sliding core; the fixed core and the sliding core are adapted to be connected by a traction structure; when the product is demolded, the fixed core is adapted to remain stationary, and the sliding core is adapted to move along the demolding direction by the adhesion force between it and the product, so that the sliding core is displaced towards the fixed core by the traction structure.
4. The shock absorber base forming mold as described in claim 3, characterized in that: The connecting surfaces of the fixed core and the sliding core are a first connecting surface and a second connecting surface, respectively; the first connecting surface and the second connecting surface are inclined surfaces that fit together; the traction structure is disposed between the first connecting surface and the second connecting surface.
5. The shock absorber base forming mold as described in claim 4, characterized in that: The traction structure includes a traction block disposed on the first connecting surface and a traction groove disposed on the second connecting surface; when the product is demolded, the sliding core is adapted to move vertically upward by the adhesion force between it and the product, and at the same time, the sliding core is adapted to slide along the traction block through the traction groove, thereby causing the sliding core to be displaced towards the fixed core.
6. The shock absorber base forming mold as described in claim 4, characterized in that: The traction structure includes a traction groove disposed on the first connecting surface and a traction block disposed on the second connecting surface; when the product is demolded, the sliding core is adapted to move vertically upward by the adhesion force between it and the product, and at the same time, the sliding core is adapted to slide along the traction groove by the traction block, thereby causing the sliding core to be displaced towards the fixed core.
7. The shock absorber base forming mold as described in claim 3, characterized in that: There is a pair of sliding cores, which are symmetrically arranged along the fixed core; each pair of sliding cores is connected to the fixed core and cooperates with the traction structure.
8. The shock absorber base forming mold as described in claim 2, characterized in that: The demolding mechanism further includes multiple ejector pins and a push plate; the ejector pins are mounted on the upper part of the push plate; the first core is slidably mounted on the upper part of the push plate via the sliding end perpendicular to the demolding direction.