Combined slider mechanism with multi-angle release

Abstract

The invention discloses a combined slider mechanism for multi-angle undercutting, belonging to the field of thermoplastic plastic molding molds. The guiding effect of the inclined guide column 12 for opening the mold and the elastic pushing effect of the slider spring 18 are combined to drive the slider seat 6 to drive the slider insert 7 to move in the horizontal direction; the limiting and guiding effect of the square pin 10 and the limiting and guiding effect of the slider insert 7 are combined to drive the slider insert 8 to move vertically; the limiting effect of the limiting groove set on the slider insert 7 on the square pin 10 and the limiting effect of the ball head top screw 11 on the slider insert 8 are combined, and the double positioning ensures the positioning accuracy of the slider insert 8; the mechanism not only solves the problem of multi-angle undercutting demoulding, but also saves mold cost, simplifies mold structure, works stably and reliably, enables the product to be demoulded smoothly and meet technical requirements and use requirements, effectively utilizes mold space, and improves production efficiency.

Description

Technical Field

[0001] The invention belongs to the field of thermoplastic plastic molding dies, and relates to a combined slider mechanism for multi-angle undercutting, and is mainly applied to molding dies for plastic products provided with multi-angle undercutting. Background Art

[0002] Plastic products have good physical and chemical properties, good plasticity and sustainable utilization. Plastic products are widely used in transportation, electrical industry, chemical industry, medical and daily necessities, etc. The mass production of plastic products mostly relies on injection molds. For some industrial plastic products, multi-angle release buckles are often set to realize assembly and use functions. For plastic product molds with multi-angle release buckles, traditional mold structures often set release buckle mechanisms for each buckle, which will cause the mold structure to be complex and occupy a large mold space, thereby leading to an increase in mold costs. With the competition in the same industry across the country and even the world, high costs will cause a decline in corporate competitiveness. Summary of the invention

[0003] The purpose of the present invention is to provide a combined slider mechanism for multi-angle undercutting, in which molding inserts and inserts with different directions are arranged in the slider mechanism to realize demoulding with undercuts at different angles, thereby ensuring smooth demoulding and production of the entire plastic product.

[0004] The technical problem to be solved by the present invention is to provide a combined slider mechanism with multi-angle undercutting to solve the problem of undercutting demolding in plastic product molding molds, especially for the problems existing in the design and production of plastic product mold mechanisms with multi-angle undercuts, so that the product can be demolded smoothly and meet the technical requirements and usage requirements.

[0005] The technical scheme of the present invention is: a combined slider mechanism with multi-angle stripping and undercutting, the structure of which includes: a fixed mold plate 1, a fixed mold insert 2, an inclined wedge 3, a movable mold plate 4, a movable mold insert 5, a slider seat 6, a slider insert 7, a slider insert 8, a fixed block 9, a square pin 10, a ball head screw 11, an inclined guide column 12, a pressure plate 13, an inclined ejector group 14, a ejector group 15, a first push plate group 16, a second push plate group 17 and a slider spring 18; its connection relationship is that the fixed mold insert 2 is in surface contact with the fixed mold plate 1 and is tightly matched and fixed by bolts, the inclined wedge 3 is in surface contact with the fixed mold plate 1 and is tightly matched and fixed by bolts, the inclined guide column 12 is in surface contact with the fixed mold plate 1 and is tightly matched and limited by a hanging platform, and the inclined guide column 12 is in clearance match with the slider seat 6, The movable mold insert 5 is tightly matched with the movable mold plate 4 and is locked and fixed by bolts. The inclined wedge 3 is tightly matched with the slider seat 6 in surface contact. The slider insert 7 is tightly matched with the slider seat 6 in surface contact. The slider insert 8 is slidingly matched with the slider insert 7 in surface contact. The slider insert 8 has a clearance fit with the slider seat 6. The fixed block 9 is tightly matched with the movable mold plate 4 in surface contact and is locked and fixed by bolts. The fixed block 9 is tightly matched with the movable mold insert 5 in surface contact. The fixed block 9 is in surface contact and limited with the pressure plate 13. The fixed block 9 is slidingly matched with the slider seat 6 in surface contact. The square pin 10 is loosely matched with the fixed block 9. The square pin 10 is tightly matched with the slider insert 8 in surface contact and is locked and fixed with bolts. The square pin 10 has a clearance fit with the slider seat 6. The ball The head screw 11 is threadedly connected with the slider insert 7 in surface contact, the pressure plate 13 is tightly matched with the movable template 4 in surface contact and is locked and fixed by bolts, the pressure plate 13 is in surface contact and sliding cooperation with the slider seat 6 and is limited by the hanging table, the surrounding of the spring 18 is clearance matched with the slider seat 6, the top and bottom surfaces of the spring 18 are in surface contact with the slider seat 6 and the movable mold insert 5 respectively, the inclined ejector group 14 is in surface contact and sliding cooperation with the movable mold insert 5, the inclined ejector group 14 is clearance matched with the movable template 4, the inclined ejector group 14 is in surface contact and fixed with the first push plate group 16, the ejector group 15 is in surface contact and sliding cooperation with the movable mold insert 5, the ejector group 15 is clearance matched with the movable template 4, and the ejector group 15 is clearance matched with the second push plate group 17 and is limited by the hanging table; the slider seat 6 is provided with A through groove and a yielding sink are provided, the slider insert 7 is provided with an oblique square hole, a limiting groove, a boss and a horizontal undercut forming part, the slider insert 8 is provided with a first hemispherical pit, a second hemispherical pit, a positioning groove and a vertical undercut forming part, the fixed block 9 is provided with a square through hole, the square pin 10 is provided with a positioning platform, the through groove provided on the slider seat 6 is in surface contact with the boss provided on the slider insert 7, tightly matched and limited, the slider insert 8 is in surface contact and sliding cooperation with the oblique square hole provided on the slider insert 7, the positioning platform provided on the square pin 10 is T-shaped, the positioning groove provided on the slider insert 8 is T-shaped, the positioning platform provided on the square pin 10 is in surface contact with the positioning groove provided on the slider insert 8, tightly matched and limited;In the mold closing state, the yielding sink set on the slider seat 6 is in clearance with the slider insert 8 and the square pin 10, the ball head of the ball head top screw 11 is in contact with the first hemispherical pit surface set on the slider insert 8 and is limited, and the square through hole set on the fixing block 9 is in clearance with the square pin 10, and the clearance is set to 0.02 mm~0.1mm; In the mold opening state, the inclined guide column 12 and the slider spring 18 work together to drive the slider seat 6 and the slider insert 7 to move in the horizontal direction, and the horizontal undercut molding part set on the slider insert 7 is separated from the plastic product, completing the horizontal undercut demoulding, the fixed block 9 limits the square pin 10, and the square pin 10 limits the slider insert 8 in the horizontal direction. The slider insert 7 moves in the horizontal direction and applies thrust to the slider insert 8, and the slider insert 8 moves downward in the vertical direction. When the square pin 10 contacts the limiting groove set on the slider insert 7, the slider insert 8 stops moving, and at the same time, the ball head top screw 11 contacts the second hemisphere pit surface set on the slider insert 8 to limit it. At this time, the vertical undercut molding part set on the slider insert 8 is separated from the plastic product to complete the vertical undercut demoulding. ;

[0006] The beneficial effects of the present invention are as follows: the combined slider mechanism for multi-angle undercutting drive the slider seat 6 and the slider insert 7 to move horizontally through the inclined guide column 12 and the slider spring 18, so as to realize the demoulding of the horizontal undercut of the plastic product; the slider insert 8 is driven to move vertically through the combination of the limiting and guiding effects of the square pin 10 and the slider insert 7, so as to realize the demoulding of the vertical undercut of the plastic product; during the movement of the slider insert 8, the limiting groove arranged on the slider insert 7 limits the square pin 10, and the first hemisphere pit and the second hemisphere pit arranged on the slider insert 8 limit the ball head top screw 11. Through the above double limiting, the smoothness and accuracy of the movement of the slider insert 8 are guaranteed. The mechanism not only solves the problem of multi-angle undercutting demoulding, but also saves mold cost, simplifies mold structure, works smoothly and reliably, enables the product to be demoulded smoothly and meets technical requirements and use requirements, effectively utilizes mold space, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The following is a detailed description of the embodiments with reference to the accompanying drawings.

[0008] Figure 1 This is the assembly diagram of the combined slider mechanism with multi-angle release Figure 1 .

[0009] Figure 2 This is a cross-sectional diagram of a combined slider mechanism with multi-angle release Figure 2 .

[0010] Figure 3 This is a schematic diagram of a combined slider mechanism with multi-angle release Figure 3 .

[0011] Figure 4This is a schematic diagram of the mold opening section of the combined slider mechanism with multi-angle release Figure 4 .

[0012] Figure 5 This is a schematic diagram of a combined slider mechanism with multi-angle release Figure 5 .

[0013] In the figure: 1 fixed platen; 2 fixed platen insert; 3 inclined wedge; 4 movable platen; 5 movable platen insert; 6 slider seat; 7 slider insert; 8 slider insert; 9 fixed block; 10 square pin; 11 ball head top screw; 12 inclined guide column; 13 pressure plate; 14 inclined top assembly; 15 top rod assembly; 16 first push plate assembly; 17 second push plate assembly; 18 slider spring. DETAILED DESCRIPTION

[0014] The specific embodiments of the invention are described in detail below with reference to technical texts and drawings.

[0015] When assembling the mold, the fixed mold insert 2 is mounted in the mold cavity processed by the fixed mold plate 1, and the bolts pass through the fixed mold plate 1 to lock and fix the fixed mold insert 2. The inclined wedge 3 is mounted in the mold cavity processed by the fixed mold plate 1, and the bolts pass through the inclined wedge 3 to fix it on the fixed mold plate 1. The inclined guide column 12 is mounted in the mold cavity processed by the fixed mold plate 1, and the hanging platform set on the inclined guide column 12 is limited. The movable mold insert 5 is mounted in the mold cavity processed by the movable mold plate 4, and the bolts pass through the movable mold plate 4 to lock and fix the movable mold insert 5. The slider insert 8 is mounted on the slider. The square pin 10 is mounted in the inclined square hole processed on the insert 7, and the square pin 10 is mounted in the positioning groove processed on the slider insert 8. The bolt passes through the slider insert 8 to fix the square pin 10. The slider insert 8, the slider insert 7 and the square pin 10 are mounted as a whole in the through groove processed on the slider seat 6. The bolt passes through the slider insert 7 to lock and fix it with the slider seat 6. The ball head screw 11 is mounted in the screw hole processed on the slider insert 7. The head of the ball head screw 11 contacts and limits the first hemisphere pit surface set on the slider insert 8 (see Figure 2 , 3 ), the slider spring 18 is mounted in the spring countersunk hole processed by the slider seat 6, the slider seat 6 and the slider insert 7 are mounted as a whole in the cavity processed by the movable template 4, the pressure plate 13 is mounted in the cavity processed by the movable template 4, and the pressure plate 13 is in contact with the slider seat 6 and is limited by the hanging table, the inclined ejector group 14 is mounted in the cavity processed by the movable mold insert 5, the inclined ejector group 14 is fixed on the first push plate group 16, and the ejector group 15 is fixed on the second push plate group 17 and then mounted in the cavity processed by the movable mold insert 5 (see Figure 1 ).

[0016] The operation process of the combined slider mechanism for multi-angle undercut is as follows: after the injection of the molding machine is completed, the fixed template 1 and the movable template 4 are separated, the inclined wedge 3 and the inclined guide column 12 move with the fixed template 1, and the wedging force of the inclined wedge 3 on the slider seat 6 is cancelled. Under the guiding effect of the inclined guide column 12 and the elastic force of the slider spring 18, the slider seat 6 and the slider insert 7 are driven to move in the horizontal direction. The horizontal undercut molding part set on the slider insert 7 is separated from the plastic product, and the horizontal undercut demoulding is completed. The fixed block 9 is locked and fixed with the movable template 4, the fixed block 9 is limited by the square pin 10, and the square pin 10 limits the slider insert 8 in the horizontal direction. The insert 8 cannot move horizontally with the slider insert 7. The slider insert 8 contacts the oblique square hole surface set on the slider insert 7. When the slider insert 7 moves horizontally, a thrust is applied to the slider insert 8 through the oblique square hole. The slider insert 8 moves downward in the vertical direction. The square pin 10 guides the slider insert 8. When the square pin 10 contacts the limiting groove set on the slider insert 7, the slider insert 8 stops moving. At the same time, the ball head top screw 11 contacts the second hemisphere pit surface set on the slider insert 8 to limit it. At this time, the vertical undercut molding part set on the slider insert 8 is separated from the plastic product, completing the vertical undercut demoulding (see Figure 4 ), under the action of the molding machine, the first push plate group 15 and the second push plate group 17 make a linear motion, the ejector rod group 15 moves linearly with the second push plate group 17, and the inclined ejector group 14 moves linearly with the first push plate group 15, and the plastic product is ejected from the movable mold insert 5. When the first push plate group 16 is ejected for a certain distance and then stops, the inclined ejector group 14 stops with the first push plate group 16. At this time, the second push plate group 17 drives the ejector rod group 14 to continue ejecting, and the plastic product is ejected from the surface of the inclined ejector group 14, completing the complete demoulding of the plastic product.

[0017] The working principle of the combined slider mechanism for multi-angle demoulding is as follows: combining the guiding effect of the inclined guide column 12 for opening the mold and the elastic pushing effect of the slider spring 18 to drive the slider seat 6 to drive the slider insert 7 to move in the horizontal direction; combining the limiting and guiding effect of the square pin 10 and the limiting and guiding effect of the slider insert 7 to drive the slider insert 8 to move vertically; combining the limiting effect of the limiting groove set on the slider insert 7 on the square pin 10 and the limiting effect of the ball head top screw 11 on the slider insert 8, double positioning to ensure the positioning accuracy of the slider insert 8; through the horizontal movement of the slider insert 7 and the vertical movement of the slider insert 8, multi-angle demoulding of the plastic product molding process is realized.

[0018] The above is a superior implementation mode of the present invention. It should be pointed out that for technicians in the technical field to which the present invention belongs, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. The combined slider mechanism with multi-angle release is characterized by The structure comprises: a fixed die plate (1), a fixed die insert (2), an inclined wedge (3), a movable die plate (4), a movable die insert (5), a slider seat (6), a slider insert (7), a slider insert (8), a fixed block (9), a square pin (10), a ball head screw (11), an inclined guide column (12), a pressure plate (13), an inclined ejector group (14), a ejector rod group (15), a first push plate group (16), a second push plate group (17) and a slider spring (18); the connection relationship is that the slider insert (7) and the slider seat (6) are in surface contact and tightly matched and are locked and fixed by bolts, the slider insert (8) and the slider insert (7) are in surface contact and sliding match, the slider insert (8) and the slider seat (6) are in clearance match, and the fixed block (9) and the movable die plate are connected. (4) The surface contact and tight fit are fixed by bolt locking, the fixed block (9) and the movable mold insert (5) are in surface contact and tight fit, the fixed block (9) and the pressure plate (13) are in surface contact and limited, the fixed block (9) and the slider seat (6) are in surface contact and sliding fit, the square pin (10) and the fixed block (9) are in clearance fit, the square pin (10) and the slider insert (8) are in surface contact and tight fit and are fixed by bolt locking, the square pin (10) and the slider seat (6) are in clearance fit, the ball head top screw (11) and the slider insert (7) are in surface contact and threaded connection, the pressure plate (13) and the slider seat (6) are in surface contact and sliding fit and limited by the hanging table, the inclined top group (14) and the movable mold insert (5) are in surface contact and sliding fit, and the inclined top group (14) and the movable mold plate (4) are in clearance fit The inclined ejector group (14) is in surface contact and fixed with the first push plate group (16), the ejector rod group (15) is in surface contact and sliding cooperation with the movable mold insert (5), the ejector rod group (15) is in clearance cooperation with the movable mold plate (4), and the ejector rod group (15) is in clearance cooperation with the second push plate group (17) and is limited by the hanging platform; the slider seat (6) is provided with a through groove and a yielding sink platform, the slider insert (7) is provided with an oblique square hole, a limiting groove, a boss and a horizontal undercut forming part, the slider insert (8) is provided with a first hemispherical pit, a second hemispherical pit, a positioning groove and a vertical undercut forming part, the fixed block (9) is provided with a square through hole, the square pin (10) is provided with a positioning platform, the through groove provided on the slider seat (6) and the slider insert (7) are The boss surface provided on the slider insert (8) is in contact with the oblique square hole surface provided on the slider insert (7) for sliding fit, the positioning platform provided on the square pin (10) is T-shaped, the positioning groove provided on the slider insert (8) is T-shaped, the positioning platform provided on the square pin (10) is in contact with the positioning groove surface provided on the slider insert (8) for tight fit and limit; in the mold closing state, the yielding sinker provided on the slider seat (6) is in clearance fit with the slider insert (8) and the square pin (10), the ball head of the ball head top screw (11) is in contact with the first hemisphere pit surface provided on the slider insert (8) for limit, the square through hole provided on the fixing block (9) is in clearance fit with the square pin (10), and the clearance is set to be 0.02 mm to 0.1mm; in the mold opening state, the inclined guide column (12) and the slider spring (18) work together to drive the slider seat (6) and the slider insert (7) to move in the horizontal direction, and the horizontal undercut molding part set on the slider insert (7) is separated from the plastic product, completing the horizontal undercut demoulding, the fixed block (9) limits the square pin (10), and the square pin (10) limits the slider insert (8) in the horizontal direction. The slider insert (7) moves in the horizontal direction and applies a thrust to the slider insert (8), and the slider insert (8) moves downward in the vertical direction. When the square pin (10) contacts the limiting groove set on the slider insert (7), the slider insert (8) stops moving. At the same time, the ball head top screw (11) contacts the second hemisphere pit surface set on the slider insert (8) to limit it. At this time, the vertical undercut molding part set on the slider insert (8) is separated from the plastic product to complete the vertical undercut demoulding. .

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