Dust cover mold structure

Abstract

The utility model discloses a dust cover mold structure, which relates to the technical field of dust covers, and comprises a mold base, a lifting type half strip, a novel half mold and a separating mechanism, the novel half mold comprises two symmetrically distributed positioning grooves, one surfaces, far away from each other, of the two positioning grooves are inclined surfaces, and the other surfaces of the two positioning grooves are inclined surfaces; the inclined face of the positioning groove is attached to the inclined inner wall of the lifting type Haff strip. Compared with an existing mode that stable positioning can be achieved only through interference fit between a sliding block and a sliding groove, the novel half mold and the separating mechanism are arranged, the inner side of the positioning groove is automatically contracted when the half mold slides downwards to be closed, the stability of the mold in the subsequent machining process is guaranteed by means of the shape matching relation, and the production efficiency is improved. And on the basis, the chute is an inclined surface, so that the sliding rod is uniformly stressed when moving on the inner side of the chute, the point-surface contact stress is not large, and the two groups of positioning grooves can be freely opened and closed relatively.

Description

Technical Field

[0001] The utility model relates to the technical field of dust cover, in particular to a dust cover mold structure. Background Art

[0002] Hough molds are commonly used in the production of automobile dust covers. They can be used to manufacture precision molds of various shapes, sizes and materials to meet various production needs.

[0003] Take the conventional manual half mold used in the prior art as an example. The mold has a simple structure and low cost. Figure 1 As shown, the half mold includes a mold base 1 and two sliding half bars 2 symmetrically arranged on the mold base 1. Both sides of the top surface of the mold base 1 are provided with a slide groove 3. A slider 4 fixedly connected to the bottom surface of the sliding half bar 2 is slidably arranged in the slide groove 3.

[0004] By setting the slide groove 3 and the slider 4, the sliding half strip 2 is slidably connected to the mold base 1, which facilitates the closing and opening of the two sets of sliding half strips 2. In order to ensure the stability of the sliding half strip 2 after sliding closing, the slider 4 and the inner wall of the slide groove 3 are generally set to an interference fit, and then after the slider 4 completes sliding, the sliding half strip 2 is braked by friction. However, this often makes it difficult for the sliding of the sliding half strip 2 due to friction, and has strict requirements on the proficiency and sliding strength of the production personnel. Utility Model Content

[0005] In order to solve the above technical problems, a dust cover mold structure is provided, which solves the problem in the prior art that the slider 4 and the inner wall of the slide groove 3 are generally set to fit tightly, and then after the slider 4 completes sliding, the sliding half bar 2 is braked by friction. However, this often makes it difficult for the sliding of the sliding half bar 2 due to friction, and has strict requirements on the proficiency and sliding force of the maker.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a dust cover mold structure, comprising a mold base, a lifting half bar with an isosceles trapezoidal longitudinal section arranged on the top surface of the mold base, a half mold structure arranged inside the lifting half bar, and a separation mechanism arranged at both ends of the mold base;

[0007] The half mold structure comprises two symmetrically distributed positioning grooves 2, the two sides of the positioning grooves 2 being away from each other are both inclined, and the inclined surfaces of the positioning grooves 2 are in contact with the inclined inner wall of the lifting half strip;

[0008] The separating mechanism comprises a positioning plate fixed in an L shape at the end of the mold base and two inverted-V-shaped inclined grooves provided through the positioning plate, a slide rod is slidingly arranged in the inner side of the inclined groove and fixedly connected with the two end portions of the positioning groove, the inclination of the inclined groove is consistent with the inclination of the two inclined surfaces of the positioning groove, and a lifting component for synchronously lifting the two slide rods is further arranged on the side of the positioning plate away from the mold base.

[0009] Preferably, the lifting component comprises an inverted U-shaped handle and a slide rail fixed transversely between the inner walls on the two sides of the handle, and a positioning groove is provided on the rod of the slide rod at the end and matched with the slide rail.

[0010] Preferably, a glass sleeve is further rotatably arranged on the rod of the slide rod, and the outer wall of the glass sleeve is in contact with the inner wall of the inclined groove.

[0011] Preferably, two connecting pieces fixedly connected with the outer wall of the positioning plate are arranged below the slide rail, and an elastic rod is fixed between the connecting piece and the slide rail.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] By means of the separating mechanism, the two positioning grooves are automatically separated when being lifted and are automatically contracted to the inner side of the positioning groove when being lowered, so that, compared with the prior art in which the positioning groove is stably positioned by the interference fit between the slide block and the slide groove, the inner side of the positioning groove is automatically contracted when the half mold is lowered, the shape fit relationship is utilized to ensure the stability of the mold during subsequent processing, the inclined groove is inclined, the force on the slide rod is uniform when the slide rod moves in the inclined groove, the point surface contact force is small, and the two positioning grooves can be freely opened and closed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic view of the connection structure between the mold base and the sliding half strip of the utility model;

[0015] Figure 2 It is a schematic view of the connection structure between the mold base and the positioning groove of the utility model;

[0016] Figure 3 It is a schematic view of the connection structure between the positioning groove and the lifting half strip of the utility model. Figure 2 It is a schematic view of the structure at point A in the utility model;

[0017] Figure 4 It is a schematic view of the connection structure between the positioning groove and the lifting half strip of the utility model.

[0018] Reference numerals in the drawing are as follows:

[0019] 1, die holder; 2, sliding half bar; 3, sliding groove; 4, sliding block; 5, lifting half bar; 6, positioning plate; 7, inclined groove; 8, sliding rod; 9, glass sleeve; 10, positioning groove I; 11, sliding rail; 12, handle; 13, telescopic rod; 14, connecting piece; 15, positioning groove II. DETAILED DESCRIPTION

[0020] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious modifications can be thought of by those skilled in the art.

[0021] Referring to Figures 2-4 As shown in the figure, a dust cover mold structure, comprising a die holder 1, a lifting half bar 5 arranged on the top surface of the die holder 1 in the shape of an isosceles trapezoid, a half mold structure arranged in the inner side of the lifting half bar 5, and a separation mechanism arranged at both ends of the die holder 1;

[0022] The half mold structure comprises two positioning groove IIs 15 composed of two symmetrically distributed positioning groove IIs 15, the side away from each other of the two positioning groove IIs 15 is in the shape of an inclined surface, and the inclined surface of the positioning groove II 15 is fitted with the inclined inner wall of the lifting half bar 5;

[0023] The separation mechanism comprises a positioning plate 6 fixed in the L shape at the end of the die holder 1 and two inclined grooves 7 in the shape of an inverted eight arranged through the positioning plate 6, the inner side of the inclined groove 7 is slidingly arranged with a sliding rod 8 fixedly connected with the end of the positioning groove II 15, the inclination of the inclined groove 7 is consistent with the inclination of the inclined surface of the positioning groove II 15, and the side away from the die holder 1 of the positioning plate 6 is further provided with a lifting component for acting on the synchronous lifting of the two sliding rods 8;

[0024] Through the arrangement of the half mold structure and the separation mechanism, when the mold needs to be separated, the lifting component on the positioning plate 6 at both sides of the die holder 1 is only needed to be lifted by both hands, so that the sliding rod 8 connected at both ends of the positioning groove II 15 is synchronously pushed up, the sliding rod 8 slides along the inner side of the inclined groove 7, and then the two groups of positioning groove IIs 15 slide and separate under the limitation of the inclined groove 7 and the sliding rod 8, and conversely, the lifting component is released, and the two groups of positioning groove IIs 15 automatically slide down to the inner side of the lifting half bar 5 under the limitation of the inclined groove 7 and the sliding rod 8;

[0025] By the separation mechanism, the two groups of positioning groove IIs 15 are automatically separated when lifted, and automatically closed when lowered to shrink the inner side of the positioning groove II 15, so that compared with the existing positioning groove II 15 which can realize stable positioning only through the interference fit between the sliding block and the sliding groove, the inner side of the positioning groove II 15 is automatically shrunk when the half mold slides and closes, the shape fit relationship is used to effectively ensure the stability of the mold during subsequent processing, and on this basis, the inclined groove 7 is in the shape of an inclined surface, so that the force acting on the sliding rod 8 when it moves in the inner side of the inclined groove 7 is uniform, the point surface contact force is not large, and the two groups of positioning groove IIs 15 can be relatively freely opened and closed.

[0026] Further, referring to Figure 2 and Figure 3 It is worth mentioning that the pulling component includes a handle 12 in the shape of an inverted U and a slide rail 11 fixed transversely between the inner walls of both sides of the handle 12, and a positioning groove I 10 is formed on the rod of the slide rod 8 at the end thereof and is adapted to the slide rail 11.

[0027] The slide rail 11 can push the two slide rods 8 synchronously when the handle 12 is pulled, and the two slide rods 8 can move away from each other on the slide rail 11 when they slide in the corresponding chute 7, so that the two positioning grooves II 15 are separated.

[0028] Further, referring to Figure 2 It is worth mentioning that two connecting pieces 14 are arranged below the slide rail 11 and are fixedly connected to the outer wall of the positioning plate 6, and an extension rod 13 is fixed between the connecting piece 14 and the slide rail 11.

[0029] The slide rail 11 can synchronously stretch the extension rod 13 when the handle 12 is pulled, and the two extension rods 13 can effectively limit the lifting movement of the slide rail 11 and the handle 12, thereby ensuring the stability of the handle 12 and the extension rod 13 during lifting.

[0030] Further, referring to Figure 3 It is worth mentioning that a glass sleeve 9 is rotatably embedded on the rod of the slide rod 8, and the outer wall of the glass sleeve 9 is in contact with the inner wall of the chute 7.

[0031] Through the arrangement of the glass sleeve 9, the glass sleeve 9 can contact the inner wall of the chute 7 when the slide rod 8 moves up and down along the inner side of the chute 7, and then rotate under stress, thereby avoiding excessive contact with the inner wall of the chute 7, and the smoothness of the glass surface can further reduce the degree of friction between the glass sleeve 9 and the inner wall of the chute 7, thereby reducing the friction resistance.

[0032] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A dust cover mold structure, characterized in that: It comprises a mold base (1), a lifting half bar (5) with an isosceles trapezoidal longitudinal section arranged on the top surface of the mold base (1), a half mold structure arranged inside the lifting half bar (5), and a separation mechanism arranged at both ends of the mold base (1); The Hough mold structure comprises two symmetrically distributed positioning grooves (15), the two sides of the positioning grooves (15) that are away from each other are both inclined, and the inclined surfaces of the positioning grooves (15) are in contact with the inclined inner wall of the lifting type Hough strip (5); The separation mechanism comprises a positioning plate (6) fixed to the end of the mold base (1) in an L shape and two inclined grooves (7) extending through the positioning plate (6) in an inverted eight shape. A sliding rod (8) fixedly connected to the end of the second positioning groove (15) is slidingly arranged on the inner side of the inclined groove (7). The inclination of the inclined groove (7) is consistent with the inclination of the inclined surface of the second positioning groove (15). A lifting component for causing the two sliding rods (8) to rise synchronously is also arranged on the side of the positioning plate (6) away from the mold base (1).

2. A dust cover mold structure according to claim 1, characterized in that: The lifting component includes an inverted U-shaped handle (12) and a slide rail (11) transversely fixed between the inner walls on both sides of the handle (12); a positioning groove (10) adapted to the slide rail (11) is provided on the rod body at the end of the slide rod (8).

3. The dust cover mold structure according to claim 1, characterized in that: A glass ferrule (9) is rotatably embedded on the rod body of the slide rod (8), and the outer wall of the glass ferrule (9) contacts the inner wall of the inclined groove (7).

4. The dust cover mold structure according to claim 2, characterized in that: Two connecting pieces (14) fixedly connected to the outer wall of the positioning plate (6) are provided below the slide rail (11), and a telescopic rod (13) is fixed between the connecting piece (14) and the slide rail (11).

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