Demolding mechanism for a spectacle frame

Abstract

The utility model provides a kind of demolding mechanism of mirror frame, including the core-pulling body being installed on fixed plate, the core-pulling body is three-stage ladder block, the big end and intermediate section of three-stage ladder block are cuboid, the small end of three-stage ladder block is isosceles trapezoidal block, the big end of isosceles trapezoidal block is connected with the bottom surface of the intermediate section of three-stage ladder block, a group of T-shaped blocks are arranged on the two inclined surfaces of isosceles trapezoidal block, and the sliding block is arranged on any one group of T-shaped blocks, the end face of the two sliding blocks mutually far away is all arranged with the recess of parallel arrangement, and the recess is arranged corresponding with the convex rib of shell inner wall;The two ends of any one sliding block are all provided with pressing block.The utility model is moved upwards after injection molding is completed, and fixed plate drives core-pulling body, drives sliding block to move along the flange of T-shaped block, the two ends of sliding block are limited by pressing block, can move towards the centre line of core-pulling body simultaneously, the recess of sliding block is separated from the convex rib of shell inner wall, and demolding is completed.

Description

Technical Field

[0001] This utility model relates to the field of picture frame processing technology, specifically to a demolding mechanism for picture frames. Background Technology

[0002] A type of frame structure such as Figure 1 As shown, the device includes a housing 1, which is a rectangular housing with an open top surface. The bottom surface of the housing 1 has a first rectangular through-hole 101 and a second rectangular through-hole 103 arranged in an array from one end to the other. A U-shaped surrounding plate structure is provided on the outer ring of one end of the housing 1, located on the outer ring of the rectangular housing corresponding to the second rectangular through-hole 103. A set of symmetrically arranged locking strips is provided on the inner walls of the two long sides of the rectangular housing. Each set of locking strips includes parallel protruding ribs 102. The following technical defect exists: the protruding ribs 102 are protruding structures, and the mold inside the housing 1 cooperates with the protruding ribs 102, making demolding difficult.

[0003] Therefore, designing a demolding mechanism for eyeglass frames has become an urgent problem to be solved. Utility Model Content

[0004] In view of the problems existing in the prior art, the present invention provides a demolding mechanism for a picture frame to solve at least one of the above-mentioned technical problems.

[0005] The technical solution of this utility model is: a demolding mechanism for a mirror frame, comprising a core-pulling body mounted on a fixed plate, wherein the core-pulling body is a three-section stepped block, the large end and the middle section of the three-section stepped block are both cuboids, the small end of the three-section stepped block is an isosceles trapezoid, the large end of the isosceles trapezoid is connected to the bottom surface of the middle section of the three-section stepped block, a set of slide rails symmetrically arranged on the two inclined surfaces of the isosceles trapezoid is provided, each set of slide rails is provided with a slider, the slider is provided with T-slots arranged at intervals, each set of slide rails includes T-blocks arranged at intervals, the flanges of the T-blocks protrude from the inclined surfaces of the isosceles trapezoids, the flanges of the T-blocks are located in the T-slots, each of the two sliders having parallel grooves arranged on the opposite side end faces, the grooves corresponding to the protrusions on the inner wall of the housing; each slider has a pressure block at both ends, one end of the pressure block presses against the slider, and the other end of the pressure block is connected to the frame.

[0006] This utility model adopts a three-stage stepped block structure for the core-pulling body. After injection molding, the fixing plate drives the core-pulling body to move upward, which in turn drives the slider to move along the flange of the T-block. The two ends of the slider are limited by the pressure blocks and can move towards the center line of the core-pulling body at the same time. The groove of the slider disengages from the protrusion of the inner wall of the shell, thus completing the demolding. This solves the technical defect in the prior art where the protrusion is a protruding structure and the mold cooperates with the protrusion inside the shell, resulting in difficulty in demolding. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the frame structure.

[0008] Figure 2 This is a three-dimensional drawing of the present invention.

[0009] Figure 3 This is the front view of the present invention.

[0010] Figure 4 for Figure 3 BB cross-section.

[0011] Figure 5 for Figure 3 CC cross-section view.

[0012] In the figure: 1. Shell; 2. Core pulling body; 3. T-block; 4. Slider; 5. Pressure block; Limiting block 101. First rectangular through hole; 102. Protruding ridge; 103. Second rectangular through hole; 201. Pour gate; 401. Groove. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] See Figure 1-5 The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore lack substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0015] Example 1: A demolding mechanism for a picture frame, referenced Figure 2 , Figure 4The system includes a core-pulling body 2 mounted on a fixed plate. The core-pulling body 2 is a three-section stepped block. The large end and middle section of the three-section stepped block are cuboids, and the small end of the three-section stepped block is an isosceles trapezoid. The large end of the isosceles trapezoid is connected to the bottom surface of the middle section of the three-section stepped block. A set of slide rails are symmetrically arranged on the two inclined surfaces of the isosceles trapezoid. A slider 4 is provided on any set of slide rails. The slider 4 is provided with T-slots arranged at intervals. A set of slide rails includes T-blocks 3 arranged at intervals. The flanges of the T-blocks 3 protrude from the inclined surfaces of the isosceles trapezoids. The flanges of the T-blocks 3 are located in the T-slots. Parallel grooves 401 are provided on the side end faces of the two sliders 4 that are far apart from each other. The grooves 401 are arranged corresponding to the protrusions 102 on the inner wall of the housing 1. Pressure blocks 5 are provided at both ends of any slider 4. One end of the pressure block 5 presses the slider 4, and the other end of the pressure block 5 is connected to the frame. This utility model adopts a three-stage stepped block structure for the core-pulling body. After injection molding, the fixing plate drives the core-pulling body to move upward, which in turn drives the slider to move along the flange of the T-block. The two ends of the slider are limited by the pressure blocks and can move towards the center line of the core-pulling body at the same time. The groove of the slider disengages from the protrusion of the inner wall of the shell, thus completing the demolding. This solves the technical defect in the prior art where the protrusion is a protruding structure and the mold cooperates with the protrusion inside the shell, resulting in difficulty in demolding.

[0016] Example 2: Based on Example 1, any of the sliders 4 described herein is a first "7" shaped structure. The vertical plate of the first "7" shaped structure has a first inclined surface on the side away from the horizontal plate, which engages with the inclined surface of the isosceles trapezoidal block. This utility model uses a slider with a first "7" shaped structure. The first inclined surface of the slider engages with the inclined surface of the isosceles trapezoidal block, allowing it to move along the inclined surface of the isosceles trapezoidal block via a slide rail.

[0017] Example 3: Based on Example 2, a recessed groove is provided on the inclined surface of the isosceles trapezoidal block, and the web of the T-shaped block 3 mates with the recessed groove; the recessed groove is provided with spaced screw holes, and a first pin hole is provided between two screw holes. This utility model uses a recessed groove on the inclined surface of the isosceles trapezoidal block, and the web of the T-shaped block is installed in the recessed groove.

[0018] Example 4: Based on Example 3, with reference to... Figure 5 The T-block 3 has first countersunk holes spaced at intervals on its flange, each countersunk hole corresponding to a screw hole in the T-block 3. The smaller end of each first countersunk hole penetrates the web of the T-block 3, and a first countersunk bolt is installed inside the first countersunk hole, engaging with the screw hole. This invention uses a first countersunk bolt to connect the T-block and the isosceles trapezoidal block into one unit.

[0019] Example 5: Based on Example 4, a second pin hole is provided between the two first countersunk holes, and a positioning pin is provided in the second pin hole, which is connected to the first pin hole. This invention uses a positioning pin to connect the first pin hole and the second pin hole to position the T-block.

[0020] Example 6: Based on Example 1, the top surface of the core-pulling body 2 is provided with a pouring port 201, which communicates with the main pouring port above the fixing plate. This utility model uses a pouring port on the top surface of the core-pulling body, which communicates with the main pouring port to form a pouring channel.

[0021] Example 7: Based on Example 1, with reference to... Figure 3 The slider 4 has rectangular bosses at both ends of its bottom surface; the pressure block 5 has a second "7" shaped structure, with the bottom surface of the horizontal plate of the second "7" shaped structure contacting the rectangular bosses. The top surface of the pressure block 5 has a second countersunk hole that penetrates the vertical plate of the second "7" shaped structure. A second countersunk bolt is installed inside the second countersunk hole and screws into a screw hole on the frame. This invention uses a pressure block with a second "7" shaped structure, which is fixed to the frame by a second countersunk bolt. The horizontal plate of the second "7" shaped structure guides the movement of the slider.

[0022] The above-described embodiments are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A demolding mechanism for a picture frame, comprising a core-pulling body (2) mounted on a fixed plate, characterized in that: The core-pulling body (2) is a three-section stepped block. The large end and the middle section of the three-section stepped block are both cuboids. The small end of the three-section stepped block is an isosceles trapezoid. The large end of the isosceles trapezoid is connected to the bottom surface of the middle section of the three-section stepped block. A set of slide rails are symmetrically arranged on the two inclined surfaces of the isosceles trapezoid. A slider (4) is provided on any set of slide rails. T-slots are arranged at intervals on the slider (4). A set of slide rails includes T-blocks (3) arranged at intervals. The flange of the T-block (3) protrudes from the inclined surface of the isosceles trapezoid. The flange of the T-block (3) is located in the T-slot. Parallel grooves (401) are provided on the side end faces of the two sliders (4) that are far apart from each other. The grooves (401) are arranged in correspondence with the protrusions (102) on the inner wall of the shell (1). Pressure blocks (5) are provided at both ends of any slider (4). One end of the pressure block (5) presses the slider (4) tightly. The other end of the pressure block (5) is connected to the frame.

2. The demolding mechanism for a picture frame according to claim 1, characterized in that: Any of the sliders (4) is a first "7" shaped structure. The vertical plate of the first "7" shaped structure has a first inclined surface on the side away from the horizontal plate. The first inclined surface cooperates with the inclined surface of the isosceles trapezoid block.

3. The demolding mechanism for a picture frame according to claim 2, characterized in that: A groove is provided on the inclined surface of the isosceles trapezoidal block, and the web of the T-shaped block (3) is fitted with the groove; the groove is provided with screw holes arranged at intervals, and a first pin hole is provided between the two screw holes.

4. The demolding mechanism for a picture frame according to claim 3, characterized in that: The flange of the T-block (3) is provided with first countersunk holes arranged at intervals, and the first countersunk holes are arranged in a one-to-one correspondence with the screw holes of the T-block (3); the small end of the first countersunk hole penetrates the web of the T-block (3), and a first countersunk bolt is provided in the first countersunk hole, and the first countersunk bolt is screwed into the screw hole.

5. The demolding mechanism for a picture frame according to claim 4, characterized in that: A second pin hole is provided between the two first countersunk holes, and a positioning pin is provided in the second pin hole, which is connected to the first pin hole.

6. The demolding mechanism for a picture frame according to claim 1, characterized in that: The top surface of the core-pulling body (2) is provided with a pouring port (201), which is connected to the main pouring port above the fixing plate.

7. The demolding mechanism for a picture frame according to claim 1, characterized in that: The slider (4) has rectangular bosses at both ends of its bottom surface; the pressure block (5) is a second "7" shaped structure, the bottom surface of the horizontal plate of the second "7" shaped structure contacts the rectangular bosses, the top surface of the pressure block (5) is provided with a second countersunk hole, the second countersunk hole penetrates the vertical plate of the second "7" shaped structure, a second countersunk bolt is provided in the second countersunk hole, and the second countersunk bolt is screwed into the screw hole on the frame.

Images