Small-sized pitched roof optimized structure for injection mold

Abstract

The utility model discloses a small-sized pitched roof optimized structure for an injection mold, which relates to the field of injection molds, and comprises a base and a mandril, the mandril is movably mounted in the base, a bump is fixed at the end part of the mandril, a bulge is fixed on one side of the bump, an insertion hole matched with the mandril is formed in the base, and an insertion hole matched with the bulge is formed in the base. A sliding groove is formed in one side of the inner wall of the inserting hole, the inner wall of the sliding groove is attached to the outer wall of the protrusion, and the inner wall of the inserting hole is obliquely arranged. The protrusions are matched with the sliding grooves, the precision between the protruding blocks and the grooves is improved, the protruding blocks are prevented from swinging in the sliding process, the strength of the small protruding blocks is improved, the ejector rod is not prone to bending deformation in the working process, and the ejector rod is prevented from being clamped and burnt in an inserted mode.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, in particular to a small inclined top optimization structure for injection molds. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products through methods such as injection molding, blow molding, extrusion, die-casting or forging, smelting, and stamping. In short, molds are tools used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the object's shape by changing the physical state of the molded material. After the injection mold cools and forms the object, it usually needs to use a lifting mechanism, and the lifting is divided into vertical lifting and inclined lifting to eject the object.

[0003] The existing common inclined top sliding guide part is square. If the product structure limits the inclined top to be made into a small size, the inclined top is easy to bend and deform, and swing during the working process, causing the inclined top to get stuck, burn, damage the mold, and affect the normal injection molding production of the mold. Utility Model Content

[0004] Based on this, the purpose of the present invention is to provide a small inclined top optimization structure for injection molds to solve the technical problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a small inclined top optimization structure for an injection mold, comprising a base and a push rod, the push rod being movably installed inside the base, and a protrusion being fixed to the end of the push rod, a protrusion being fixed to one side of the protrusion, a socket matching the push rod being provided inside the base, and a slide groove being provided on one side of the inner wall of the socket, the inner wall of the slide groove being in contact with the outer wall of the protrusion, and the inner wall of the socket being arranged at an angle.

[0006] By adopting the above technical solution, the protrusion and the slide groove cooperate with each other, which improves the precision between the protrusion and the groove, prevents the protrusion from swinging during the sliding process, and increases the strength of the small protrusion. The ejector rod is not easy to bend and deform during the working process, which prevents the ejector rod from getting stuck and burning.

[0007] The utility model is further configured such that the outer wall of the push rod is sleeved with a limit block.

[0008] By adopting the above technical solution, the provided limit block can prevent the push rod from extending too long when the push rod is working, thereby limiting the push rod.

[0009] The present invention is further configured such that a groove is provided on the top of the base, and the inner wall of the groove fits with the bottom end of the outer wall of the protrusion.

[0010] By adopting the above technical solution, the provided groove can cooperate with the bottom of the protrusion, thereby preventing the injection fluid from entering the insertion hole during operation.

[0011] The utility model is further configured such that one side of the top of the protrusion is configured in an arc shape.

[0012] By adopting the above technical solution, the problem of the protrusion being bent and deformed during operation can be avoided.

[0013] The present invention is further configured such that the number of the protrusions is two groups, and the two groups of protrusions are symmetrically arranged about the vertical center line of the base.

[0014] By adopting the above technical solution, the two sets of protrusions can make the ejector rod more stable during operation, ensuring that the objects can be ejected better without the problem of tilting or deviation.

[0015] In summary, the present invention has the following beneficial effects:

[0016] 1. The utility model is provided with a push rod, a bump, a protrusion and a slide groove. The protrusion and the slide groove cooperate with each other, thereby improving the precision between the bump and the groove, preventing the bump from swinging during the sliding process, and increasing the strength of the small bump. The push rod is not easy to bend and deform during the working process, preventing the push rod from getting stuck and burning.

[0017] 2. The utility model is provided with a protrusion and a limit block, which can limit the push rod, so that the movement trajectory of the push rod is limited, avoiding the problem of the push rod being separated from the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection between the ejector pin and the bump of the utility model;

[0020] Figure 3 This is a structural diagram of the chute of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the jack of the utility model;

[0022] Figure 5 It is a cross-sectional view of the base of the utility model.

[0023] In the figure: 1. Base; 2. Push rod; 3. Bump; 4. Limit block; 5. Protrusion; 6. Socket; 7. Slide groove; 8. Groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] The following describes an embodiment of the present invention based on its overall structure.

[0026] A small inclined top optimization structure for injection molds, such as Figure 1 - Figure 5 As shown, it includes a base 1 and a push rod 2. The push rod 2 is movably installed inside the base 1, and a protrusion 3 is fixed to the end of the push rod 2. A protrusion 5 is fixed to one side of the protrusion 3. The cross-section of the protrusion 5 is set to be convex. The protrusion 5 slides on the inner wall of the slide 7 to push the object out. The protrusion 3 can avoid the problem of deformation during work. A socket 6 matching the push rod 2 is opened inside the base 1, and a slide 7 is opened on one side of the inner wall of the socket 6. The inner wall of the slide 7 fits with the outer wall of the protrusion 5. The inner wall of the socket 6 is inclined. The width of the protrusion 3 is greater than the width of the push rod 2. Under the action of the protrusion 3, the problem of separation of the push rod 2 and the base 1 can be avoided.

[0027] See also Figure 2 The outer wall of the push rod 2 is provided with a limit block 4. The limit block 4 can prevent the push rod 2 from extending too long when the push rod 2 is working, thereby limiting the push rod 2.

[0028] See also Figure 1 and Figure 3 A groove 8 is provided at the top of the base 1, and the inner wall of the groove 8 fits with the bottom end of the outer wall of the protrusion 3. The groove 8 can cooperate with the bottom of the protrusion 3, thereby preventing the injection fluid from entering the socket 6 during operation.

[0029] See also Figure 1 The arc-shaped setting on one side of the top of the protrusion 3 can avoid the problem of bending and deformation of the protrusion 3 during operation.

[0030] See also Figure 1 and Figure 2 There are two groups of protrusions 3, and the two groups of protrusions 3 are symmetrically arranged with respect to the vertical center line of the base 1. The two groups of protrusions 3 can make the ejector rod 2 more stable during operation, ensuring that the items can be ejected better without the problem of tilting or deviation.

[0031] The working principle of the utility model is as follows: when in use, the push rod 2 slides on the inner wall of the socket 6, and the sliding of the push rod 3 drives the projection 3 to slide, and the protrusion 5 on one side of the projection 3 slides on the inner wall of the slide groove 7, thereby lifting the injection molded object, and then the push rod 2 is reset, and the bottom of the projection 3 fits into the groove 8 to close the socket 6, and the projection 3 can avoid bending and deformation during operation.

[0032] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A small inclined ejector optimization structure for an injection mold, comprising a base (1) and an ejector pin (2), characterized in that: A push rod (2) is movably mounted inside the base (1), and a protrusion (3) is fixed to the end of the push rod (2), and a protrusion (5) is fixed to one side of the protrusion (3). A socket (6) matching the push rod (2) is provided inside the base (1), and a slide groove (7) is provided on one side of the inner wall of the socket (6), and the inner wall of the slide groove (7) is in contact with the outer wall of the protrusion (5).

2. The small-sized inclined top optimization structure for an injection mold according to claim 1, characterized in that: The outer wall of the push rod (2) is sleeved with a limit block (4).

3. The small-sized inclined top optimization structure for an injection mold according to claim 1, characterized in that: A groove (8) is provided on the top of the base (1), and the inner wall of the groove (8) fits in contact with the bottom end of the outer wall of the protrusion (3).

4. The small-sized inclined top optimization structure for an injection mold according to claim 1, characterized in that: One side of the top of the protrusion (3) is arranged in an arc shape.

5. The small-sized inclined top optimization structure for an injection mold according to claim 1, characterized in that: The number of the protrusions (3) is two groups, and the two groups of protrusions (3) are symmetrically arranged about the vertical center line of the base (1).

6. The small-sized inclined top optimization structure for an injection mold according to claim 1, characterized in that: The cross section of the protrusion (5) is configured to be convex.

7. The small-sized inclined top optimization structure for an injection mold according to claim 1, characterized in that: The width of the protrusion (3) is greater than the width of the push rod (2).

8. The small-sized inclined top optimization structure for an injection mold according to claim 1, characterized in that: The inner wall of the socket (6) is arranged obliquely.

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