A slider limiting structure of a mold

Abstract

The application discloses a mold slider limiting structure, which comprises a fixed mold, a movable mold, a traction block and a slider body. The movable mold, the fixed mold and the slider body are matched to form a cavity for molding a required product. The traction block is arranged on the movable mold in a first direction. The slider body is installed on the traction block. The slider body and the movable mold are matched through a limiting structure. When the mold is opened, the limiting structure is suitable for locking the slider body in a second direction. The first direction and the second direction are perpendicular. The application has the beneficial effects that the limiting structure is arranged between the slider body and the movable mold to be matched. The limiting structure can lock the slider body in a vertical direction, so that the slider body is prevented from being pulled up when the mold is opened. The problem that the slider body is easily pulled up and adhered to the fixed mold during the mold opening process is effectively solved, and the service life of the mold is prolonged.

Description

Technical Field

[0001] This application relates to the field of mold technology, and in particular to a slider limiting structure for a mold. Background Technology

[0002] like Figure 1 The diagram shows a schematic of an injection molded product structure. It has many undercuts on its side, so corresponding core blocks (or sliders) are needed to form these undercuts. However, the slider has a certain length, so it is easy for the slider to be lifted up during the mold opening process, which can easily lead to sticking to the mold and affecting its service life over time. To solve this problem, a limiting structure that can prevent the slider from being pulled up is proposed. Utility Model Content

[0003] One of the objectives of this application is to provide a slider limiting structure for a mold.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: a slider limiting structure for a mold, comprising a fixed mold, a moving mold, a traction block, and a slider body. The moving mold, the fixed mold, and the slider body cooperate with each other to form a cavity for molding the desired product. The traction block is slidably disposed on the moving mold along a first direction, and the slider body is installed on the traction block. The slider body and the moving mold are cooperated by a limiting structure. When the mold is opened, the limiting structure is adapted to lock the slider body in a second direction, wherein the first direction and the second direction are perpendicular to each other.

[0005] Preferably, the limiting structure includes a limiting block and a limiting groove. The limiting block is installed at the bottom end of the slider body, and the limiting groove is disposed in the moving mold. The locking cooperation between the limiting block and the limiting groove is used to lock the slider body in the second direction.

[0006] Preferably, the end of the slider body is provided with an integrally formed mounting part, and the top of the traction block is provided with a mounting groove, and the mounting part is embedded and installed in the mounting groove.

[0007] Preferably, the first end of the limiting block forms a connecting part that mates with the mounting part, and the second end of the limiting block forms a snap-fit ​​part that mates with the limiting groove.

[0008] Preferably, the length of the limiting block is at least one-third of the length of the slider body.

[0009] Preferably, the slider body and the limiting block are detachably installed, and the top ends of the slider body and the limiting block are provided with a through mounting hole.

[0010] Preferably, the slider body and the limiting block are integrally formed, and the top ends of the slider body and the limiting block are provided with a communicating process hole.

[0011] Preferably, both the mounting part and the mounting groove are L-shaped, so that the cooperation between the mounting part and the mounting groove can lock the slider in a first direction.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] This invention uses a limiting mechanism between the slider and the moving mold to lock the slider in the vertical direction, thereby preventing the slider from being pulled up during mold opening. This effectively solves the problem of the slider being easily lifted and sticking to the mold during mold opening, and extends the service life of the mold. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the existing slider mounting structure.

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0017] Figure 4 This is a schematic diagram of the limiting structure of this utility model.

[0018] Figure 5 This is a schematic diagram of the limit block being installed over a long distance.

[0019] Figure 6 This is a schematic diagram of the mounting groove and mounting part of this utility model.

[0020] Figure 7 This is a three-dimensional structural diagram of the slider body of this utility model.

[0021] In the diagram: 1. Traction block; 2. Sliding block; 201. Mounting part; 3. Product; 301. Undercut body; 4. Moving mold; 5. Limiting structure; 501. Limiting block; 502. Limiting groove; 6. Mounting groove. Detailed Implementation

[0022] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0024] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0025] Further description of the shortcomings of the existing technology: such as Figure 1 As shown, this is a schematic diagram of the structure of an injection molded product 3. It has many undercut bodies 301 on its side, so corresponding core blocks (or slider bodies 2) are needed to form these undercut bodies 301. Since there are many slider bodies 2 and they are small in size, it is not convenient to set corresponding grooves in the moving mold 4 to install the slider bodies 2. Generally, they are installed on the same traction block 1, and then the traction block 1 is moved by the cooperation of the inclined guide post in the fixed mold, so as to realize the synchronous movement and demolding of multiple slider bodies 2. Therefore, except for the end where it is installed, the rest of the slider body 2 is equivalent to "suspended". Therefore, at the moment of mold opening, due to the certain adhesion between the slider body 2 and the fixed mold, the slider body 2 is easily lifted up.

[0026] Therefore, the inventors of this application have developed a slider limiting structure for a mold, one embodiment of which is, for example... Figures 1 to 7 As shown, the system includes a fixed mold, a moving mold 4, a traction block 1, and a slider 2. The moving mold 4, the fixed mold (not shown), and the slider 2 cooperate to form a cavity for molding the desired product 3, while the slider 2 forms the undercut body 301 of the product 3. The traction block 1 is slidably disposed on the moving mold 4 along a first direction, and the slider 2 is mounted on the traction block 1. The slider 2 and the moving mold 4 are engaged by a limiting structure 5.

[0027] Understandably, we will use the example of a horizontally placed mold for explanation. Figure 4 As shown, let X be the first direction (i.e., the left-right direction) and Y be the second direction (i.e., the vertical direction). For example... Figure 3 As shown, during mold opening, the limiting structure 5 can limit and lock the slider 2 in the vertical direction, thereby preventing the slider 2 from being pulled up during mold opening. This effectively solves the problem that the slider 2 is easily lifted up and sticks to the mold during the mold opening process, and extends the service life of the mold.

[0028] This application does not limit the specific structure of the limiting structure 5, but the following specific embodiment is provided for reference:

[0029] like Figure 4 and Figure 5 As shown, the limiting structure 5 includes a limiting block 501 and a limiting groove 502. The limiting block 501 is installed at the bottom of the slider body 2, and the limiting groove 502 is disposed within the moving mold 4. It can be understood that during mold closing, the slider body 2 will move towards the cavity, thereby driving the limiting block 501 to move until it engages with the limiting groove 502, thus locking the slider body 2 vertically.

[0030] It should be understood that when the moving mold 4 and the fixed mold open, that is, at the instant the fixed mold opens, a large sticking force is generated on the slider 2. Therefore, the length of the locking part that engages with the limiting groove 502 at the right end of the limiting block 501 does not need to be too long, and the depth of the limiting groove 502 does not need to be too deep either. It is only necessary to achieve the locking effect on the slider 2 at the instant of mold opening. This makes it easier to process the limiting block 501 and the limiting groove 502. Of course, the engagement between the locking part and the limiting groove 502 can also limit the slider 2 when it is in the mold closed state, further improving stability.

[0031] In a further preferred embodiment, to facilitate the installation of the slider body 2, an integrally formed mounting part 201 can be provided at the left end of the slider body 2, and a mounting groove 6 is provided at the top of the traction block 1; a mounting hole is provided through the top of the mounting part 201, and a mounting hole is also provided at the bottom of the mounting groove 6.

[0032] Understandably, during installation, the mounting part 201 is placed into the mounting groove 6, and then the bolts are inserted into the mounting holes and tightened to install the slider body 2. This increases the contact area between the mounting part 201 and the mounting groove 6, improving installation stability. Furthermore, after installation, the top of the mounting part 201 is flush with the top of the traction block 1, allowing the mounting part 201 to be installed in a concealed manner, resulting in better aesthetics.

[0033] Furthermore, such as Figure 6 As shown, both the mounting part 201 and the mounting groove 6 preferably adopt an L-shaped structure. This allows the mounting part 201 and the mounting groove 6 to lock the slider 2 in the left and right directions during (pre-)installation, improving the stability and efficiency of the slider 2 during installation. While other mounting structures, such as a T-shaped structure, could also be used to achieve left-right locking, the simplest L-shaped structure is sufficient to meet the practical requirements, as the deformation force on the slider 2 is primarily in the vertical direction.

[0034] The installation position and structural form of the limit block 501 can be varied; such as Figure 5 As shown, assuming the limiting block 501 is installed on the slider body 2 and near the right end, it can effectively limit and lock the slider body 2 in the vertical direction. However, the farther the snap-fit ​​part of the slider body 2 is from the traction block 1, the deeper the limiting groove 502 needs to be set in the moving mold 4, which will increase the processing difficulty of the limiting groove 502.

[0035] Therefore, considering the ease of machining the limiting groove 502 and ensuring that the limiting block 501 can effectively perform its limiting and locking function, the limiting block 501 can be positioned closer to the traction block 1. However, it is essential to ensure that the limiting block 501 has sufficient strength. Specifically, after installation, the left end of the limiting block 501 engages with the mounting part 201 to form a connecting part. This increases the overall length of the limiting block 501 and also increases the contact area between it and the slider body 2 and the mounting part 201 after installation, thereby further improving the stability of the installation.

[0036] Furthermore, such as Figure 4 As shown, the length of the limiting block 501 is at least one-third of the length of the slider 2. If the length of the limiting block 501 is too short, that is, the locking part at the right end of the limiting block 501 is located below the slider 2 near the left end, it will be difficult to achieve the locking and limiting effect during mold opening. Therefore, through the above length design, the locking part at the right end of the limiting block 501 can effectively lock the slider 2 without making the locking part too far away. Considering both the processing difficulty and the locking effect, the optimal length of the limiting block 501 is between one-third and one-half of the length of the slider 2. Of course, the length of the limiting block 501 can also be adjusted appropriately according to actual usage requirements, the main point being to ensure that it can effectively lock the slider 2 during mold opening.

[0037] In this embodiment, there are multiple installation methods between the limiting block 501 and the slider 2, including but not limited to the following two:

[0038] Method 1: For example Figure 7 As shown, the slider body 2 and the limiting block 501 are detachably installed. Specifically, a through mounting hole is provided at the top of the slider body 2 and the limiting block 501. During installation, the bolt is passed through the mounting hole and tightened with a nut, so that the top of the limiting block 501 abuts against the slider body 2 and the left end abuts against the mounting part 201.

[0039] Method 2: For example Figure 7As shown, the slider body 2 and the limiting block 501 are integrally formed. As mentioned above, the slider body 2 and the mounting part 201 are also integrally formed. Therefore, the slider body 2, the limiting block 501, and the mounting part 201 are all integrally formed. Due to their complex structure, multiple processing steps are required on the raw material. Therefore, a through-hole is provided at the top of the slider body 2 and the limiting block 501, located in the middle of the entire component. This provides convenience, ensures accuracy, and improves efficiency during processing, inspection, or assembly. Furthermore, after processing, the process hole can also serve as a weight-reduction hole to reduce the overall weight of the part.

[0040] It should be noted that when using method one, the two parts are processed separately, which can reduce the complexity of processing and facilitate replacement if one of the parts is damaged; while when using method two, the integrated design has better strength and a longer service life; of course, both methods can meet the actual needs, and those skilled in the art can choose according to the actual situation.

[0041] The working principle of this utility model is as follows: Figure 3 As shown, slider 2 is in the closed state. During mold opening, the moving mold 4 and the fixed mold separate, and the traction block 1 (which can slide horizontally under the action of the inclined guide post of the fixed mold) slides. At the moment of sliding, the limiting block 501 and the limiting groove 502 are still in a mating state, which can prevent slider 2 from being pulled up by the fixed mold. It should be noted that the sticking of slider 2 to the fixed mold occurs at the initial moment of mold opening. When the moving mold 4 and the fixed mold continue to separate, the phenomenon of slider 2 sticking to the fixed mold will no longer occur.

[0042] 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 slider limiting structure for a mold, characterized in that, include: The mold comprises a fixed mold, a moving mold, a traction block, and a slider. The moving mold, the fixed mold, and the slider cooperate to form a cavity for molding the desired product. The traction block is slidably disposed on the moving mold along a first direction, and the slider is mounted on the traction block. The slider and the moving mold are engaged by a limiting structure. When the mold is opened, the limiting structure is adapted to lock the slider in a second direction, wherein the first direction and the second direction are perpendicular.

2. The slider limiting structure of the mold as described in claim 1, characterized in that: The limiting structure includes a limiting block and a limiting groove. The limiting block is installed at the bottom end of the slider body, and the limiting groove is disposed in the moving mold. The locking cooperation between the limiting block and the limiting groove is used to lock the slider body in the second direction.

3. The slider limiting structure of the mold as described in claim 2, characterized in that: The end of the slider body is provided with an integrally formed mounting part, and the top of the traction block is provided with a mounting groove, and the mounting part is embedded and installed in the mounting groove.

4. The slider limiting structure of the mold as described in claim 3, characterized in that: The first end of the limiting block forms a connecting part that mates with the mounting part, and the second end of the limiting block forms a snap-fit ​​part that mates with the limiting groove.

5. The slider limiting structure of the mold as described in claim 4, characterized in that: The length of the limiting block is at least one-third of the length of the slider.

6. The slider limiting structure of the mold as described in any one of claims 2-5, characterized in that: The slider body and the limiting block are detachably installed, and the top ends of the slider body and the limiting block are provided with a through mounting hole.

7. The slider limiting structure of the mold as described in any one of claims 2-5, characterized in that: The slider body and the limiting block are integrally formed, and the top ends of the slider body and the limiting block are provided with a communicating process hole.

8. The slider limiting structure of the mold as described in claim 3, characterized in that: Both the mounting part and the mounting groove are L-shaped, and the cooperation between the mounting part and the mounting groove can lock the slider in a first direction.

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