An automatic flipping mechanism suitable for a single-mold multi-cavity injection mold

Abstract

The present invention is an automatic flipping mechanism suitable for a single-mold multi-cavity injection mold. Several injection cores are mounted on a base. Flip covers are provided on the left and right sides of the upper surface of each injection core. A flip lever is provided on one side of the flip cover. A middle slide is arranged above the middle portion of the base from left to right. A drive mechanism is connected to one side of the middle slide. A mounting groove extends through the middle portion of the middle slide. A lifting link is located within the mounting groove of the middle slide. Several oblique guide grooves are symmetrically provided on the front and rear side walls of the lifting link. Long circular holes extend through the front and rear side surfaces of the lifting link. The flip lever is inserted into the corresponding long circular holes. A guide post is fixed to the base. The lifting link is inserted into the guide post. Sliding pins are provided on the front and rear side walls of the middle slide. The sliding pins are arranged in the corresponding oblique guide grooves. The present invention solves the problem of a complicated mechanism during simultaneous flipping and demolding of multi-cavity molds, simplifies the mold mechanism, and better adapts to different injection molding machines. The movement is stable, thereby improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile door and window sealing production equipment, and in particular to an automatic turnover mechanism suitable for a single-mold multi-cavity injection mold. Background Art

[0002] Automotive door and window seals are injection molded using corner molds. To improve production efficiency and reduce customer costs, a four-cavity corner mold is designed. Each cavity's demolding mechanism requires two opposing flips, for a total of eight flips across the four cavities. Previously, achieving these two flips required a rack-and-pinion mechanism for directional movement. However, this mechanism required significant space, resulting in a large mold size and an inability to optimally fit the customer's injection molding machine. The movement of the core and actuator in this mechanism differed, creating significant friction between the components. This caused jamming during relative motion, making disassembly difficult, and resulted in numerous wearing parts and lengthy repair times, impacting production efficiency and increasing investment costs. Summary of the Invention

[0003] The present invention aims to solve the deficiencies of the prior art and to provide an automatic turnover mechanism suitable for a single-mold multi-cavity injection mold.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0005] An automatic turning mechanism suitable for a multi-cavity injection mold includes a base, a plurality of injection cores, a middle slide rod, a lifting connecting rod, and a plurality of guide columns;

[0006] A base, used to carry the injection core;

[0007] An injection core is mounted on the upper surface of the base and is used for injection molding automobile door and window seals. A flip cover is provided on the left and right sides of the upper surface of each injection core. One side of the flip cover is hinged to the injection core via a rotating shaft. A flip lever is provided on the side of each flip cover facing the middle of the base.

[0008] The middle slide bar is arranged above the middle part of the base from left to right. One side of the middle slide bar is connected to the driving mechanism. The middle part of the middle slide bar is penetrated by mounting grooves from top to bottom.

[0009] The lifting link is located above the base and is set in the installation groove of the middle slide rod. A number of oblique guide grooves are symmetrically provided on the front and rear side walls of the lifting link. A long circular hole in the left and right direction is penetrated on the front and rear side surfaces of the lifting link corresponding to each flip lever, and the flip lever is inserted into the corresponding long circular hole;

[0010] Several guide columns are fixed in the middle of the base from left to right, and the lifting connecting rods are passed through the guide columns;

[0011] A sliding pin is provided on the front and rear side walls of the middle slide bar corresponding to each oblique guide groove, and the inner end of the sliding pin is arranged in the corresponding oblique guide groove.

[0012] The driving mechanism comprises a mounting seat fixed on one side of the base, an oil cylinder is fixed on the mounting seat, and the oil cylinder is connected to one end of the middle sliding rod through an oil cylinder connector.

[0013] The mounting base is an L-shaped structure, and the oil cylinder is fixed on the vertical plate of the mounting base.

[0014] A frame is fixed on the upper surface of the base. The frame is arranged opposite to the mounting seat, and the middle sliding rod is slidably arranged on the frame.

[0015] The upper surface of the jacking connecting rod is provided with a mounting guide hole communicated with the oblong hole.

[0016] A number of lubricating oil grooves are provided on the upper and lower surfaces of the middle slide bar.

[0017] The upper and lower surfaces of the jacking connecting rod are penetrated by guide column holes, and the guide columns are inserted into the corresponding guide column holes.

[0018] A core installation groove is provided on the upper surface of the base corresponding to each injection core, and the injection core is installed in the corresponding core installation groove.

[0019] The beneficial effects of the present invention are: on the one hand, the present invention solves the problem of complicated mechanism during simultaneous flipping and demolding of multi-cavity molds, simplifies the mold structure, reduces processing costs, reduces mold thickness, better adapts to different injection molding machines, reduces workers' labor intensity, and reduces labor costs; on the other hand, the present invention has stable movement, improves production efficiency, and meets all aspects of large-scale production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] In the figure: 1-base; 2-injection core; 3-middle slide rod; 4-lifting connecting rod; 5-guide column; 6-flip cover; 7-flip lever; 8-mounting slot; 9-oblique guide slot; 10-long round hole; 11-sliding pin; 12-mounting seat; 13-oil cylinder; 14-oil cylinder connector; 15-frame; 16-mounting guide hole; 17-lubricating oil tank; 18-core mounting groove;

[0022] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention. The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in exact proportions. They are only used to facilitate and clearly illustrate the purpose of the embodiments of the present invention.

[0024] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] The present invention will be further described below with reference to the accompanying drawings and examples:

[0027] like Figure 1 As shown, an automatic flipping mechanism suitable for a single-mold multi-cavity injection mold includes a base 1, a plurality of injection cores 2, a middle slide bar 3, a lifting connecting rod 4, and a plurality of guide columns 5;

[0028] The base 1 is used to support the injection core 2. The upper surface of the base 1 is provided with a core mounting groove 18 corresponding to each injection core 2. The injection core 2 is installed in the corresponding core mounting groove 18. The injection core 2 is used for injection molding automobile door and window seals. The left and right sides of the upper surface of each injection core 2 are provided with flip covers 6. One side of the flip cover 6 is hinged to the injection core 2 via a rotating shaft. Each flip cover 6 is provided with a flip lever 7 on the side facing the middle of the base 1.

[0029] The middle slide bar 3 is arranged above the middle part of the base 1 from left to right. A driving mechanism is connected to one side of the middle slide bar 3. A mounting groove 8 is passed through the middle of the middle slide bar 3 from top to bottom.

[0030] The lifting link 4 is located above the base 1 and is arranged in the mounting groove 8 of the middle slide bar 3. A plurality of oblique guide grooves 9 are symmetrically provided on the front and rear side walls of the lifting link 4. A long circular hole 10 in the left and right directions is penetrated on the front and rear side surfaces of the lifting link 4 corresponding to each flip lever 7. The flip lever 7 is inserted into the corresponding long circular hole 10; a mounting guide hole 16 communicating with the long circular hole 10 is provided on the upper surface of the lifting link 4;

[0031] A plurality of guide posts 5 are fixed to the middle of the base 1 from left to right. Guide post holes are penetrated through the upper and lower surfaces of the jacking connecting rod 4, and the guide posts 5 are inserted into the corresponding guide post holes.

[0032] A sliding pin 11 is provided on the front and rear side walls of the middle slide bar 3 corresponding to each oblique guide groove 9 , and the inner end of the sliding pin 11 is arranged in the corresponding oblique guide groove 9 .

[0033] The driving mechanism includes a mounting base 12 fixed to one side of the base 1 , a cylinder 13 is fixed on the mounting base 12 , and the cylinder 13 is connected to one end of the middle slide rod 3 through a cylinder connector 14 .

[0034] The mounting base 12 is an L-shaped structure, and the oil cylinder 13 is fixed on a vertical plate of the mounting base 12 .

[0035] A frame 15 is fixed on the upper surface of the base 1 . The frame 15 is arranged opposite to the mounting seat 12 , and the middle sliding rod 3 is slidably inserted into the frame 15 .

[0036] A plurality of lubricating oil grooves 17 are provided on the upper and lower surfaces of the middle slide bar 3, and lubricating oil can be added regularly to make it slide more smoothly.

[0037] When the present invention is working, the oil cylinder 13 drives the middle slide rod 3 to slide left and right. At this time, the sliding pin 11 moves in the oblique guide groove 9. Due to the action of the guide column 5, the lifting connecting rod 4 can only move in the vertical direction, so that the flip lever 7 contacts the bottom of the oblong hole 10 and moves along the oblong hole 10. The flip cover 6 fixed to the flip lever 7 will also generate a flip movement around the rotating shaft to open, thereby realizing the simultaneous flipping of multiple flip covers 6 on the multi-cavity injection core 2.

[0038] On the one hand, the present invention solves the problem of complicated mechanism during simultaneous flipping and demoulding of multi-cavity molds, simplifies the mold structure, reduces processing costs, reduces mold thickness, better adapts to different injection molding machines, reduces workers' labor intensity, and reduces labor costs; on the other hand, the movement is stable, production efficiency is improved, and various requirements of large-scale production are met.

[0039] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or they are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. An automatic flipping mechanism suitable for a multi-cavity injection mold, characterized in that: It comprises a base (1), a plurality of injection cores (2), a middle slide rod (3), a lifting connecting rod (4), and a plurality of guide columns (5); A base (1) for supporting an injection mold core (2); An injection core (2) is mounted on the upper surface of the base (1) and is used for injection molding automobile door and window seals. A flip cover (6) is provided on the left and right sides of the upper surface of each injection core (2). One side of the flip cover (6) is hinged to the injection core (2) via a rotating shaft. A flip lever (7) is provided on the side of each flip cover (6) facing the middle of the base (1). The middle slide bar (3) is arranged above the middle part of the base (1) from left to right, one side of the middle slide bar (3) is connected to a driving mechanism, and a mounting groove (8) is passed through the middle of the middle slide bar (3) from top to bottom; The lifting connecting rod (4) is located above the base (1) and is arranged in the installation groove (8) of the middle slide rod (3). A plurality of oblique guide grooves (9) are symmetrically provided on the front and rear side walls of the lifting connecting rod (4). A long circular hole (10) in the left and right directions is passed through the front and rear side surfaces of the lifting connecting rod (4) corresponding to each flip lever (7), and the flip lever (7) is inserted into the corresponding long circular hole (10); A plurality of guide columns (5) are fixed to the middle of the base (1) from left to right, and a lifting connecting rod (4) is passed through the guide columns (5); A sliding pin (11) is provided on the front and rear side walls of the middle slide bar (3) corresponding to each oblique guide groove (9), and the inner end of the sliding pin (11) is arranged in the corresponding oblique guide groove (9).

2. The automatic flipping mechanism for a multi-cavity injection mold according to claim 1, characterized in that: The driving mechanism comprises a mounting seat (12) fixed on one side of the base (1); a cylinder (13) is fixed on the mounting seat (12); and the cylinder (13) is connected to one end of the middle slide rod (3) through a cylinder connector (14).

3. The automatic flipping mechanism for a multi-cavity injection mold according to claim 2, characterized in that: The mounting seat (12) is an L-shaped structure, and the oil cylinder (13) is fixed on the vertical plate of the mounting seat (12).

4. The automatic flipping mechanism for a multi-cavity injection mold according to claim 3, characterized in that: A frame (15) is fixed on the upper surface of the base (1), the frame (15) and the mounting seat (12) are arranged opposite to each other, and the middle slide rod (3) is slidably arranged on the frame (15).

5. The automatic turnover mechanism for a multi-cavity injection mold according to claim 4, characterized in that: The upper surface of the lifting connecting rod (4) is provided with a mounting guide hole (16) which is in communication with the oblong hole (10).

6. The automatic turnover mechanism for a multi-cavity injection mold according to claim 5, characterized in that: A plurality of lubricating oil grooves (17) are provided on the upper and lower surfaces of the middle slide bar (3).

7. The automatic flipping mechanism for a multi-cavity injection mold according to claim 6, characterized in that: Guide post holes are passed through the upper and lower surfaces of the lifting connecting rod (4), and the guide posts (5) are inserted into the corresponding guide post holes.

8. The automatic turnover mechanism for a multi-cavity injection mold according to claim 7, characterized in that: A core installation groove (18) is provided on the upper surface of the base (1) corresponding to each injection core (2), and the injection core (2) is installed in the corresponding core installation groove (18).

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