A rubber mold assembling tool for small parts

Abstract

A tooling fixture for installing rubber molds for small parts, relating to the field of mold tooling technology, includes a material storage bin, a material discharge plate, and an automatic misalignment device. The material storage bin includes a feed trough and multiple distribution holes, the height of which is at least an integer multiple of the height of the annular frame. The material discharge plate is disposed at the bottom of the distribution holes and slides relative to the material storage bin. The material discharge plate includes multiple discharge holes, the height of which is less than or equal to the height of the annular frame, and the height difference between the lower end face of the distribution hole and the lower end face of the discharge hole is greater than or equal to the height of the annular frame. The automatic misalignment device includes an elastic element disposed between the material storage bin and the material discharge plate. This invention allows the material storage bin to complete the installation of the annular frames on all positioning posts of a mold in one sliding motion, and the material storage bin can continuously install the annular frames on multiple molds with one loading, improving installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mold tooling technology, and in particular to a rubber mold assembly tooling for small parts. Background Technology

[0002] A mold fixture includes a base plate and multiple positioning posts arranged in an array on the base plate, and a ring-shaped skeleton needs to be fitted onto each positioning post. Traditionally, the ring-shaped skeleton is installed manually one by one onto the positioning posts, which is not only inefficient but also prone to omissions. Therefore, there is a need to develop a mold assembly fixture that improves the efficiency of ring-shaped skeleton installation. Utility Model Content

[0003] To address the problems of low efficiency in manual operation in existing technical solutions, this utility model provides a tooling fixture for assembling rubber molds for small parts.

[0004] This utility model provides the following technical solution: a rubber mold assembly fixture for small parts, comprising: The storage bin includes a feeding trough and a plurality of distributing holes disposed at the bottom of the feeding trough, wherein the height of the distributing holes is at least an integer multiple of the height of the annular frame; A material leakage plate is disposed at the bottom of the material distribution hole and slides relative to the material storage bin. The material leakage plate includes a plurality of material leakage holes corresponding to a plurality of material distribution holes. The height of the material leakage holes is less than or equal to the height of the annular skeleton, and the height difference between the lower end face of the material distribution hole and the lower end face of the material leakage hole is greater than or equal to the height of the annular skeleton. An automatic misalignment device includes an elastic element disposed between the storage bin and the discharge plate. When the elastic element is reset, it misaligns the discharge hole with the corresponding distribution hole and causes the discharge plate to close the distribution hole.

[0005] Preferably, the end of the material distribution hole facing the feed trough is a conical guide port, and the end of the conical guide port with a larger bottom area faces the feed trough.

[0006] Preferably, the formula for calculating the diameter of the opening of the conical guide port facing the feed trough is:

[0007] In the formula, D is the diameter of the opening of the conical guide port facing the feed trough, d is the outer diameter of the annular frame, h is the height of the annular frame, and k is the adjustment coefficient.

[0008] Preferably, the connection between the conical guide port and the feed trough is provided with a rounded corner.

[0009] Preferably, the height of the conical feed inlet is greater than or equal to the height of the annular frame.

[0010] Preferably, multiple distributing holes are arranged in an array at the bottom of the feed trough.

[0011] Preferably, the material leakage plate is provided with a limiting groove, and the material storage bin is provided with a protrusion that slides relative to the limiting groove, and the length of the protrusion is less than the length of the limiting groove.

[0012] Preferably, the storage bin is provided with a fixed column, the discharge plate is provided with a sliding groove that slides relative to the fixed column, and the elastic element is a compression spring provided between the sliding groove and the fixed column.

[0013] The beneficial effects of this utility model are: multiple material distribution holes in the storage bin can store multiple ring skeletons; the material leakage plate slides relative to the storage bin to achieve alignment and misalignment between the material distribution holes and the material leakage holes; and only one ring skeleton is placed in each material distribution hole each time the material bin slides, so that the installation of ring skeletons on all positioning columns of a mold is completed in one slide of the material bin. After installation, the material distribution hole is automatically closed by the automatic misalignment device, waiting for the next installation. This allows the material bin to continuously install ring skeletons on multiple molds in one loading, improving installation efficiency. Attached Figure Description

[0014] Figure 1 A top view of one embodiment of the molding tooling.

[0015] Figure 2 A bottom view of one embodiment of the mold assembly fixture.

[0016] Figure 3 This is a cross-sectional view of one embodiment of the mold assembly fixture.

[0017] Figure 4 for Figure 1 A magnified view of a portion of the image.

[0018] Figure 5 for Figure 3 A magnified view of a portion of the image.

[0019] Reference numerals: 10, storage bin; 11, feed chute; 12, distribution hole; 121, conical guide port; 13, protrusion; 14, fixing column; 20, material leakage plate; 21, material leakage hole; 22, limiting groove; 23, slide groove; 30, compression spring; 40, ring frame. Detailed Implementation

[0020] The embodiments of this utility model will be described in more detail below with reference to the accompanying drawings and reference numerals, so that those skilled in the art can implement them after reading this specification. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0021] This invention provides a tooling fixture for installing rubber molds for small parts, which can install a ring frame on multiple positioning posts arranged in an array on the mold base plate at one time.

[0022] The mold-assembly fixture includes a material storage bin 10, a material discharge plate 20, and an automatic misalignment device.

[0023] Please refer to Figure 1 , 3 4. The storage bin 10 includes a feeding trough 11 and multiple distributing holes 12 disposed at the bottom of the feeding trough 11. The distributing holes 12 are through holes, and the multiple distributing holes 12 are arranged in an array. Each distributing hole 12 corresponds to and is coaxial with a positioning post on the mold base plate. The inner diameter of the distributing hole 12 is slightly larger than the outer diameter of the annular skeleton 40, allowing the annular skeleton 40 to enter the distributing hole 12 with its central axis parallel to the distributing hole 12. The height H1 of the distributing hole 12 is at least an integer multiple of the height h of the annular skeleton 40, and in one embodiment at least 5 times, allowing 5 annular skeletons to be stacked sequentially along the axial direction within the distributing hole 12. The annular skeleton is not the subject of this utility model.

[0024] The end of the distribution hole 12 facing the feed trough 11 is a conical guide port 121, with the end having a larger bottom area facing the feed trough 11. The height H2 of the conical guide port 121 can be greater than or equal to the height h of the annular frame 40. The opening diameter D of the conical guide port 121 facing the feed trough 11 can be determined based on the diameter d and height h of the annular frame 40, to prevent the annular frame 40 from falling into the distribution hole 12 with its central axis perpendicular to the central axis of the distribution hole 12. Figure 4 As shown, the connection between the conical guide port 121 and the feed trough 11 can be rounded.

[0025] In one embodiment, the formula for calculating the diameter D is:

[0026] In the formula, D is the opening diameter of the conical guide port 121 facing the feed trough 11, d is the outer diameter of the annular frame 40, h is the height of the annular frame, and k is the adjustment coefficient.

[0027] After determining a suitable size for diameter D, numerous annular skeletons 40 are poured into the feed trough 11. The mold-assembly fixture is shaken, causing the annular skeletons 40 to roll into the conical guide port 121. Guided by the conical guide port 121, they are then obliquely dropped into the distribution hole 12 and stacked sequentially along the axial direction. Figure 5 As shown.

[0028] Please refer to Figure 3 , 5A material leakage plate 20 is disposed at the bottom of the material distribution holes 12. The material leakage plate 20 includes multiple material leakage holes 21 corresponding to the multiple material distribution holes 12. The material leakage holes 21 are also through holes, and their inner diameter is slightly larger than the outer diameter of the annular skeleton 40, but can be the same as the inner diameter of the material distribution holes 12. The height H3 of the material leakage hole 21 is less than or equal to the height h of the annular skeleton 40, so that a maximum of one annular skeleton 40 can be accommodated in the material leakage hole 21. The height difference H4 between the lower end face of the material distribution hole 12 and the lower end face of the material leakage hole 21 is greater than or equal to the height h of the annular skeleton 40, to prevent the annular skeleton 40 falling into the material leakage hole 21 from interfering with the relative sliding of the material leakage plate 20 and the storage bin 10.

[0029] The material discharge plate 20 and the material storage bin 10 slide relative to each other to align and misalign the material distribution hole 12 and the material discharge hole 21. In one embodiment, the material storage bin 10 is also provided with a handle for easy manual pushing. When the material distribution hole 12 and the material discharge hole 21 are aligned, an annular frame 40 inside the material distribution hole 12 falls into the material discharge hole 21. After the material storage bin 10 is slid to misalign the material distribution hole 12 and the material discharge hole 21, the material discharge plate 20 can close the material distribution hole 12 to prevent the remaining annular frame 40 inside the material distribution hole 12 from falling further.

[0030] The material discharge plate 20 is also provided with a limiting groove 22. The storage bin 10 is provided with a protrusion 13 that slides relative to the limiting groove 22. The length L1 of the protrusion 13 is less than the length L2 of the limiting groove 22, so as to limit the sliding distance of the storage bin 10 relative to the material discharge plate 20, so that when the two slide relative to each other to the limit, the alignment or misalignment of the material distribution hole 12 and the material discharge hole 21 is just completed.

[0031] The material discharge plate 20 and the storage bin 10 utilize an automatic misalignment device to achieve automatic misalignment between the material distribution hole 12 and the material discharge hole 21. Please refer to... Figure 2 In one embodiment, the storage bin 10 is provided with a fixed column 14, and the discharge plate 20 is provided with a sliding groove 23 that slides relative to the fixed column 14. A compression spring 30 is provided between the sliding groove 23 and the fixed column 14 as an elastic element. When the spring returns to its original position, the distributing hole 12 and the corresponding discharge hole 21 are automatically misaligned. After misalignment, the discharge plate 20 closes all distributing holes 12. Further, a nut can be provided at the end of the fixed column 14 to lock at the opening of the sliding groove 23 to prevent the discharge plate 20 from separating from the storage bin 10. A recessed groove corresponding to the nut is provided on the bottom surface of the discharge plate 20 to prevent the nut from protruding from the bottom surface of the discharge plate 20. Similarly, the nut slides relative to the recessed groove. In other embodiments, other elastic elements, such as tension springs, elastic ropes, airbags, etc., can also be used to achieve automatic misalignment.

[0032] During operation, a certain number of ring-shaped skeletons 40 are first poured into the feed trough 11. At this time, the material distribution holes 12 and the material leakage holes 21 are automatically misaligned, and the material leakage plate 20 closes all the material distribution holes 12. The mold mounting fixture is shaken to allow the ring-shaped skeletons 40 to enter multiple material distribution holes 12 until all the material distribution holes are filled with ring-shaped skeletons 40. Then, the material leakage plate 20 is attached to the mold base plate, and the mold positioning pin is inserted into the corresponding material leakage hole 21, ensuring that the mold positioning pin and the material leakage hole are coaxial. The storage bin 10 can be manually pushed relative to the mold base plate. The material discharge plate 20 slides, aligning the material distribution hole 12 with the corresponding material discharge hole 21. A ring-shaped skeleton 40 falls into the material discharge hole 21 and is fitted onto the positioning post. After releasing the thrust on the storage bin 10, the material distribution hole 12 and the material discharge hole 21 are misaligned. The material discharge plate 20 closes the material distribution hole 12, preventing the remaining ring-shaped skeleton 40 in the material distribution hole 12 from falling further. Finally, the mold mounting fixture is removed, and the ring-shaped skeletons on all the positioning posts of the mold are installed. The remaining ring-shaped skeletons in the mold mounting fixture can support the installation of the next mold.

[0033] The above describes one or more embodiments of this utility model in a relatively specific and detailed manner, but it should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A rubber mold loading tool for small parts, characterized by, include: The storage bin includes a feeding trough and a plurality of distributing holes disposed at the bottom of the feeding trough, wherein the height of the distributing holes is at least an integer multiple of the height of the annular frame; A material leakage plate is disposed at the bottom of the material distribution hole and slides relative to the material storage bin. The material leakage plate includes a plurality of material leakage holes corresponding to a plurality of material distribution holes. The height of the material leakage holes is less than or equal to the height of the annular skeleton, and the height difference between the lower end face of the material distribution hole and the lower end face of the material leakage hole is greater than or equal to the height of the annular skeleton. An automatic misalignment device includes an elastic element disposed between the storage bin and the discharge plate. When the elastic element is reset, it misaligns the discharge hole with the corresponding distribution hole and causes the discharge plate to close the distribution hole.

2. The rubber mold assembly fixture for small parts according to claim 1, characterized in that, The end of the material distribution hole facing the feed trough is a conical guide port, and the end of the conical guide port with a larger bottom area faces the feed trough.

3. A rubber mold loading tool for small parts according to claim 2, wherein The formula for calculating the diameter of the opening of the conical guide port facing the feed trough is: ； In the formula, D is the diameter of the opening of the conical guide port facing the feed trough, d is the outer diameter of the annular frame, h is the height of the annular frame, and k is the adjustment coefficient.

4. The rubber mold loading tooling for small parts of claim 2, wherein, The connection between the conical guide inlet and the feed trough is provided with rounded corners.

5. The rubber mold loading tooling for small parts of claim 2, wherein, The height of the conical feed inlet is greater than or equal to the height of the annular frame.

6. A rubber mold loading tool for small parts according to claim 1, wherein Multiple material distribution holes are arranged in an array at the bottom of the feed trough.

7. A rubber mold loading tool for small parts according to claim 1, wherein The material leakage plate is provided with a limiting groove, and the material storage bin is provided with a protrusion that slides relative to the limiting groove, and the length of the protrusion is less than the length of the limiting groove.

8. The rubber mold loading tool for small parts of claim 1, wherein, The storage bin is provided with a fixed column, the discharge plate is provided with a sliding groove that slides relative to the fixed column, and the elastic element is a compression spring provided between the sliding groove and the fixed column.

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