Structure for avoiding glue shoveling of inclined top of front mold

Abstract

The utility model discloses a structure for avoiding glue shoveling of a front mold inclined top, which is additionally provided with a driving unit, an ejector rod connected with the driving unit and an ejector block fixed on the front mold inclined top, an end inclined top surface is arranged on the ejector rod, and a sliding hole is arranged in the front mold. The ejector rod and the sliding hole are in sliding fit, the ejector rod can be pushed by the driving unit to move so that the end inclined top face can eject the ejector block, through the structure, the oil cylinder drives the ejector rod to move along the sliding hole after mold closing, and therefore the end inclined top face and the ejector block extrude to support the front mold inclined top, and the problem of bending deformation of the front mold inclined top is solved; and the inclined top is prevented from ejecting out shoveled glue during mold opening, so that the problem of shoveling glue by the inclined top of the front mold during mold opening is also avoided.

Description

Technical Field

[0001] The utility model relates to a mould, in particular to a structure for avoiding the front mould from tilting and scraping glue. Background Art

[0002] A mold for injection molding an air conditioner base (such as Figure 4 As shown), its main injection molding structure includes a front mold and a front mold inclined top. The bottom of the front mold inclined top is located in the front mold tunnel and has a molding surface. The two ends of the front mold inclined top are connected to the nitrogen spring 200 through a connecting rod 100.

[0003] When the mold is opened, after the front mold is moved away, the nitrogen spring 200 will pop the front mold inclined top out of the front mold tunnel through the connecting rod 100.

[0004] When the mold is closed, the slider insert in the front mold presses the connecting rod 100, thereby compressing the nitrogen spring 200, which drives the front mold slant to return to the front mold tunnel. However, because the front mold slant is relatively long, the connecting rod 100 is also longer. The support point of the connecting rod 100 is at one end, but the force-bearing area of the connecting rod 100 is not at the support point, making the connecting rod 100 susceptible to bending and deformation. The connecting rod 100 is fixed to the front mold slant, causing the front mold slant to bend and deform indirectly due to pressure. As a result, when the mold is closed, the middle area of the front mold slant will bend and deform into the front mold tunnel due to pressure. This causes the bottom edge of the front mold slant to embed into the product 300 (0.2mm-0.5mm) during injection molding, and the glue will be scraped off during demolding.

[0005] To avoid this problem, the previous solution was to grind off 0.2mm-0.5mm of the molding surface at the bottom of the front mold's bevel. This prevented the bevel from deforming and embedding itself into the product 300, thus preventing glue scraping during mold opening and ejection. However, in actual production, we discovered that there's a certain probability that the front mold's bevel will not deform. Even in this case, grinding off 0.2mm-0.5mm of thickness would cause the corresponding glue level on the product to be 0.2mm-0.5mm higher, forming a step that would affect the product's appearance.

[0006] Therefore, the applicant has newly designed a structure that avoids the front mold from tilting and scraping glue to solve the above problems. Utility Model Content

[0007] In order to overcome the deficiencies of the prior art, the utility model provides a structure for avoiding the slanted top scraping of glue by the front mold.

[0008] The technical solution adopted by the utility model to solve its technical problems is:

[0009] A structure for scraping glue to prevent the front mold from being tilted and topped, includes a front mold and a front mold tilted top, and is characterized in that it also includes a driving unit arranged in the front mold, a push rod connected to the driving unit, and a top block fixed on the front mold tilted top, the push rod is provided with an end tilted top surface, and the front mold is provided with a sliding hole, the push rod is slidably matched with the sliding hole and the push rod can move under the push of the driving unit so that the end tilted top surface can lift the top block.

[0010] The top block is provided with a top hole, the top rod can be inserted into the top hole, and the end inclined top surface can be pressed against the hole wall of the top hole.

[0011] A positioning surface is provided in the front mold, and the ejector rod can be positioned against the positioning surface.

[0012] A positioning hole is provided in the front mold, and the positioning surface is the bottom surface of the positioning hole.

[0013] The top rod is provided with a reverse top surface.

[0014] A positioning groove is provided on the top surface of the front mold inclined top, and a positioning plug plate which is engaged with the positioning groove is provided on the top block.

[0015] The bottom surface of the positioning groove is provided with a locking screw hole, and the top block is provided with a countersunk hole passing through the top block. The locking screw passes through the countersunk hole and is connected with the locking screw hole to fix the top block to the front mold inclined top.

[0016] The beneficial effects of the present invention are as follows: the present invention adds a driving unit, a push rod connected to the driving unit, and a push block fixed on the inclined top of the front mold; the push rod is provided with an end inclined top surface, and a sliding hole is provided in the front mold; the push rod slides in cooperation with the sliding hole and the push rod can move under the push of the driving unit so that the end inclined top surface can lift the push block; through the above structure, after the mold is closed, the oil cylinder drives the push rod to move along the sliding hole, so that the end inclined top surface is squeezed with the push block to support the inclined top of the front mold, thereby correcting the problem of bending deformation of the inclined top of the front mold, ensuring that the inclined top of the front mold is completely reset, avoiding the inclined top from pushing out the scraped glue when the mold is opened, and thus also avoiding the problem of the inclined top of the front mold scraping the glue when the mold is opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

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

[0019] Figure 2 It is a cross-sectional structural view of the utility model;

[0020] Figure 3 This is an exploded structural view of the present utility model;

[0021] Figure 4 It is a structural view of the old structure;

[0022] Figure 5 yes Figure 2 A magnified view of the structure at point A. DETAILED DESCRIPTION

[0023] The advantages and features of the present disclosure and its implementation methods will be illustrated by the following embodiments described with reference to the accompanying drawings. However, the present disclosure can be embodied in different forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be comprehensive and complete and will fully convey the scope of the present disclosure to those skilled in the art. Furthermore, the present disclosure is limited only by the scope of the claims.

[0024] The shapes, sizes, proportions, angles and numbers disclosed in the drawings for describing the embodiments of the present disclosure are merely examples, and therefore the present disclosure is not limited to the details shown. Throughout this specification, the same reference numerals refer to the same elements. In the following description, when a detailed description of a related known function or configuration is determined to be unnecessary to obscure the focus of the present disclosure, the detailed description will be omitted. Where “including”, “having” and “comprising” described in this specification are used, other components may be added unless “only” is used. Unless otherwise indicated, terms in the singular may include plural forms.

[0025] When explaining an element, although not explicitly described, the element is understood to include a range of error.

[0026] When describing a positional relationship, for example, when the positional relationship is described as "on," "above," "below," and "adjacent to," one or more parts may be arranged between two other parts, unless "immediately" or "directly" is used.

[0027] When describing a temporal relationship, for example, when a temporal order is described as “after,” “subsequently,” “next,” and “before,” discontinuous cases may be included unless “just” or “directly” is used.

[0028] It should be understood that although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of this disclosure.

[0029] As will be fully appreciated by those skilled in the art, the features of the different embodiments of the present disclosure may be coupled or combined with each other in part or in whole, and may cooperate with each other in various ways and be driven technically. The embodiments of the present disclosure may be performed independently of each other, or may be performed together in a mutually dependent relationship.

[0030] Reference Figures 1 to 3 The utility model discloses a structure for avoiding the front mold inclined top from scraping glue, comprising a front mold (not shown in the figure) and a front mold inclined top 1, and also comprising a driving unit 2 arranged in the front mold, a push rod 3 connected to the driving unit 2, and a top block 4 fixed on the front mold inclined top 1, wherein the push rod 3 is provided with an end inclined top surface 5, and a sliding hole is provided in the front mold, wherein the push rod 3 slides with the sliding hole and the push rod 3 can move under the push of the driving unit 2 so that the end inclined top surface 5 can lift the top block 4. Through the above structure, after the mold is closed, the oil cylinder drives the push rod 3 to move along the sliding hole, so that the end inclined top surface 5 and the top block 4 are squeezed to support the front mold inclined top 1, thereby correcting the problem of bending deformation of the front mold inclined top 1. As a preferred structure, the top block 4 is located in the middle position of the top surface of the front mold inclined top 1, so that a support point is formed in the middle, thereby ensuring the uniformity of the force on the front mold inclined top 1. The driving unit 2 is preferably a hydraulic cylinder, and the push rod 3 is fixed to the piston rod of the hydraulic cylinder.

[0031] Specifically, the top block 4 is a square plate, and a square top hole 6 is provided on the top block 4. The top rod 3 is also a square rod of corresponding shape. The end of the top rod 3 can be inserted into the top hole 6 under the push of the driving unit 2. The end inclined top surface 5 can be squeezed with the hole wall of the top hole 6 to apply force to the front mold inclined top 1. The force is opposite to the pressure applied by the slider insert to the front mold inclined top 1, thereby correcting the bending deformation of the front mold inclined top 1 caused by the pressure of the slider insert, and the structure of the end inclined top surface 5 also makes it easy for the top rod 3 to be inserted into the top hole 6.

[0032] As a further structure, a positioning surface is provided in the front mold, and the ejector pin 3 can be positioned against the positioning surface, thus avoiding the problem that the ejector pin 3 is bent in the reverse direction due to inaccurate movement of the front mold inclined ejector pin 1, causing new injection defects. As a specific structure, a positioning hole is provided in the front mold, and the positioning surface is the bottom surface of the positioning hole; as a preferred structure, a reverse top surface 10 is provided on the ejector pin 3, which not only makes it easy for the ejector pin 3 to be inserted into the top hole 6 and the positioning hole, but also allows the reverse top surface 10 to squeeze the hole walls of the positioning hole against each other, thereby forming a support point at the end of the ejector pin 3, preventing the ejector pin 3 from being deformed due to squeezing with the hole wall of the top hole 6. Of course, the hole wall of the positioning hole can also be set as an inclined surface, so that the contact area between the reverse top surface 10 and the inclined surface is large, thereby making the support more stable.

[0033] As shown in the figure, the top surface of the front mold inclined top 1 is provided with a positioning groove 7, and the top block 4 is provided with a positioning plug plate 8 that is locked with the positioning groove 7, which can facilitate installation and improve the firmness of the combination of the top block 4 and the front mold inclined top 1. As a further structure, the bottom surface of the positioning groove 7 is provided with a locking screw hole, and the top block 4 is provided with a countersunk hole 9 that passes through the top block 4. The locking screw passes through the countersunk hole 9 and is connected with the locking screw hole to fix the top block 4 to the front mold inclined top 1. The force direction of the screw of the above structure is parallel to that of the top block 4, so the force condition of the screw is better, thereby improving the structural reliability.

[0034] The above is a detailed introduction to a structure for avoiding the front mold slanted top scraping glue provided by an embodiment of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for general technical personnel in this field, according to the idea of the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A structure for scraping glue to avoid the front mold tilting, comprising a front mold and a front mold tilting, characterized in that: It also includes a driving unit arranged in the front mold, a push rod connected to the driving unit, and a top block fixed on the inclined top of the front mold. The push rod is provided with an end inclined top surface, and a sliding hole is provided in the front mold. The push rod is slidably matched with the sliding hole and the push rod can move under the push of the driving unit so that the end inclined top surface can lift the top block.

2. The structure for avoiding front mold slant top glue scraping according to claim 1, characterized in that: The top block is provided with a top hole, the top rod can be inserted into the top hole, and the end inclined top surface can be pressed against the hole wall of the top hole.

3. The structure for avoiding front mold slanting and scraping glue according to claim 1, characterized in that: A positioning surface is provided in the front mold, and the ejector rod can be positioned against the positioning surface.

4. The structure for avoiding front mold slanting and scraping glue according to claim 3, characterized in that: A positioning hole is provided in the front mold, and the positioning surface is the bottom surface of the positioning hole.

5. The structure for avoiding front mold slanting and scraping glue according to claim 1, characterized in that: The top rod is provided with a reverse top surface.

6. The structure for avoiding front mold slant top glue scraping according to claim 1, characterized in that: A positioning groove is provided on the top surface of the front mold inclined top, and a positioning plug plate which is engaged with the positioning groove is provided on the top block.

7. The structure for avoiding front mold slanting and scraping glue according to claim 6, characterized in that: The bottom surface of the positioning groove is provided with a locking screw hole, and the top block is provided with a countersunk hole passing through the top block. The locking screw passes through the countersunk hole and is connected with the locking screw hole to fix the top block to the front mold inclined top.

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